Wrist strap type fan

Abstract

The utility model relates to the technical field of fans, in particular to a wrist strap type fan. Comprising a shell, and an air inlet is formed in the lower portion of the shell in the height direction Z of the shell. An air outlet is formed in the side part of the shell in the width or length direction Y of the shell; the wrist strap is connected to the lower portion of the shell in the height direction Z of the shell and used for being worn on the wrist of the human body; the fan is used for introducing airflow from the air inlet and blowing the airflow out of the air outlet; the fan comprises fan blades and a driving part, and the fan blades are arranged on the periphery of the driving part in a surrounding mode. The axis of the shell in the height direction Z serves as the center line, and a driving shaft of the driving piece is connected with the fan blades and used for driving the fan to rotate around the center line in the circumferential direction. Through the arrangement of the structure, the wrist strap type fan is simple and compact in overall structure and convenient to use.

Description

Technical Field

[0001] The present application relates to the technical field of fans, and in particular to a wristband fan. Background Art

[0002] In order to meet the needs of mothers, infants, children and other groups for fans, wrist fans have appeared on the market. There are two types of wrist fans in the prior art. One type of wrist fan has its air outlet direction in the height direction. Therefore, when the wearable body is worn on the wrist, the air outlet direction is perpendicular to the wrist, and the wrist needs to be twisted to make the air blow to the face or body part, which affects the comfort of use.

[0003] Another type of wrist fan can be erected when in use, so that the air outlet direction is parallel to the wrist or at a certain angle, and can be blown to the face or body parts without twisting the wrist. Although this structure improves the comfort of use, the overall structure is complex, the manufacturing is cumbersome and the cost is high. When the fan is erected when in use, the overall structure is also poor in compactness.

[0004] Therefore, in the prior art, there is no wrist fan that satisfies both the comfort of use and the simple and compact structure. Utility Model Content

[0005] Based on this, it is necessary to provide a wristband fan with simple and compact structure and easy use.

[0006] A wristband fan, comprising:

[0007] A shell, wherein an air inlet is provided at the lower portion of the shell along the height direction of the shell; and an air outlet is provided at the side portion of the shell along the width or length direction of the shell;

[0008] A wristband, connected to the lower part of the housing along the height direction of the housing, for being worn on a human wrist;

[0009] The fan comprises blades and a driving member, wherein the blades are arranged around the periphery of the driving member and are connected to the driving member; and the driving member can drive the fan to rotate circumferentially around the center line with the axis in the height direction of the shell as the center line.

[0010] In one of the embodiments, the fan blade includes a main body and a plurality of blades, and the plurality of blades are arranged around the circumference of the main body; the main body is rotatably sleeved on the outside of the driving member and connected to the main body.

[0011] In one of the embodiments, the outer peripheral wall of the body is provided with a circle of protrusions, and the blades are distributed at intervals along the circumference of the protrusions and are fixedly connected to the protrusions.

[0012] In one of the embodiments, the wristband fan further includes a night light, and the night light is disposed at the upper portion of the shell along the height direction of the shell.

[0013] In one of the embodiments, the wristband fan further includes a cover, the cover is disposed outside the night light, and the cover is configured to be transparent.

[0014] In one of the embodiments, an annular groove is formed on the upper portion of the shell, and the cover shell is inserted into the annular groove.

[0015] In one embodiment, the wristband fan also includes a power supply, an on / off switch, and a control panel. The control panel is electrically connected to the power supply. The power supply is disposed in the shell. Along the height direction of the shell, the power supply is located above the fan.

[0016] In one of the embodiments, the wristband and the shell are detachably connected, and the air inlet is correspondingly arranged at the periphery of the connection between the wristband and the shell.

[0017] In one embodiment, the housing is provided with a first through hole, and the wristband is provided with a second through hole;

[0018] The wristband fan also includes a connector, which can penetrate the first through hole and the second through hole and detachably connect the wristband to the shell.

[0019] In one embodiment, the wristband includes a base and a belt body, the belt body is a flexible structure, and the belt body is detachably connected to the base, and the second through hole is opened on the base.

[0020] Compared with the prior art, the wristband fan is designed by setting the air outlet at the side and the wristband at the lower part of the shell. When the fan is worn on the wrist, the air outlet direction is parallel to the wrist or has a certain angle. The fan on the wrist can blow to the face or body parts by simply raising the arm normally. There is no need to twist the wrist. It is easy to operate and comfortable to use. Secondly, since the fan is set in the shell, it can only discharge air from the air outlet position. When the fan is placed horizontally and rotated, it can still meet the needs of special air outlet directions. The fan does not need to be erected, and there is no need to set up an extra locking structure. The overall structure is simple, the processing is simple, and the cost is low. The fan is placed horizontally and the fan blades are arranged around the periphery of the driving part, which reduces the overall height of the fan. The overall structure is compact, and the aesthetics and usability when worn on the wrist are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic diagram of the wristband fan structure provided in this application.

[0023] Figure 2 A three-dimensional cross-sectional view of the wristband fan provided in the present application with the band body removed.

[0024] Figure 3 A schematic diagram of the structure of the fan blade provided for this application.

[0025] Figure 4 Rear view of the wristband fan provided for this application.

[0026] Figure 5 This is a schematic diagram of the structure of the cover provided in this application.

[0027] Figure 6 This is a schematic diagram of the structure of the wristband provided in this application.

[0028] Figure 7 A bottom view of the wristband fan provided in this application with the wristband removed.

[0029] Figure 8 This is a schematic diagram of the structure of the housing provided in this application.

[0030] Fig. 9 This is a schematic diagram of the structure of the cover plate provided in this application.

[0031] Fig.10 This is a schematic diagram of the structure of the inner shell provided in this application.

[0032] Fig.11 This is a schematic diagram of the structure of the back cover provided in this application.

[0033] Figure numerals: 10, shell; 10a, lower part; 10b, side; 10c, upper part; 11, air inlet; 12, air outlet; 20, wristband; 21, seat; 211, plug interface; 212, second connecting column; 213, second through hole; 214, extension; 215, ratchet; 22, belt body; 221, plug; 222, convex column; 223, hole; 30, fan; 31, fan blade; 311, body; 312, blade; 313, convex part; 32, driving member; 41, night light; 42, night light switch; 51, power supply; 52, charging port; 53, on / off switch; 60, control panel ;70, storage cavity;71, notch;72, recessed portion;73, first connecting column;74, first through hole;75, spring sheet;76, protrusion;80, connecting piece;100, outer shell;101, first shell;102, second shell;103, cylinder;200, inner shell;201, first connecting port;202, second connecting port;203, joint;300, cover plate;301, protrusion;302, hook;303, first clamp;304, slot;305, second clamp;400, back cover;401, cover shell;402, annular groove;403, first clamp;404, second clamp. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0035] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0039] See also Figures 1 to 11 The present application provides a wristband fan, including a housing 10, a wristband 20, and a fan 30. The fan 30 is disposed in the housing 10, and the wristband 20 is connected to the housing 10. Specifically, along the height direction Z of the housing 10, an air inlet 11 is provided at the lower portion 10a of the housing 10. Along the width direction X or the length direction Y of the housing 10, an air outlet 12 is provided at the side portion 10b of the housing 10. That is, the air outlet 12 is disposed on one side along the length direction Y of the housing 10, or the air outlet 12 is disposed on one side along the length direction Y of the housing 10, thereby satisfying that the air outlet direction is parallel to the wrist or has a certain angle, but is not perpendicular. In the present embodiment, the air outlet 12 is disposed on one side along the length direction Y of the housing 10.

[0040] The wristband 20 is used to be worn on the human wrist, and is connected to the lower part 10a of the shell 10 along the height direction Z of the shell 10. The fan 30 is used to introduce airflow from the air inlet and blow it out from the air outlet 12. The setting direction of the air outlet 12 is the air outlet direction of the fan 30, and then the air outlet direction of the fan 30 is basically parallel to the wrist. Just raise your arm normally, and the fan 30 on the wrist can blow toward the face or body parts without twisting the wrist. It is easy to operate and comfortable to use. Of course, the belt body 22 is not limited to being worn on the wrist. According to the use requirements, the belt body 22 can also be tied to items such as cribs, chairs, toys, etc., as long as it can blow air toward the human body.

[0041] Specifically, the fan 30 includes blades 31 and a driving member 32. The blades 31 are arranged around the driving member 32, and the driving shaft of the driving member 32 is connected to the blades 31. With the axis of the height direction Z of the shell 10 as the center line, the driving member 32 is used to drive the blades 31 to rotate circumferentially around the center line. The blades 31 are arranged around the driving member 32, so that the driving member 32 and the blades 31 only occupy the height of the blades 31, the space occupied is small, and the overall structure is compact. The driving member 32 can adopt a micro motor, a small brushed motor, etc., which is a prior art and can be directly purchased, and the structure is not described in detail.

[0042] See also Figure 3 The fan blade 31 includes a body 311 and a plurality of blades 312. The driving member 32 is fixedly connected to the housing 10, and the body 311 is rotatably sleeved outside the driving member 32, and the driving shaft of the driving member 32 is connected to the body 311. The plurality of blades 312 are distributed outside the body 311 at intervals along the circumferential direction, and are fixedly connected to a side of the body 311 away from the driving member 32. Preferably, the body 311 is in the shape of a hollow cover 401. When the driving shaft rotates, the body 311 can be driven to rotate, and then the blades 312 can be driven to rotate circumferentially around the center line, thereby driving the airflow to flow.

[0043] Specifically, a circle of protrusions 313 is provided on the side of the body 311 away from the driving member 32, that is, on the outer peripheral wall, and the blades 312 are distributed at intervals along the circumference of the protrusions 313 and are fixed to the protrusions 313. Preferably, along the height direction Z of the housing 10, the blades 312 are vertically arranged without an inclination angle. Then, all the airflow is guided to the air outlet 12, avoiding the situation where the airflow is first guided to the housing 10 and then flows to the air outlet 12, resulting in the weakening of the wind force, thereby improving the wind force of the air outlet 12.

[0044] In this embodiment, the housing 10 includes an outer shell 100 and an inner shell 200, and the air inlet 11 and the air outlet 12 are arranged on the outer shell 100. The fan 30 is arranged on the inner shell 200, that is, the driving member 32 is fixedly connected to the top wall of the inner shell 200. Fig.11 The inner shell 200 is provided with a first communication port 201 on the side close to the air inlet 11, and the first communication port 201 is connected to the air inlet 11. The inner shell 200 is provided with a second communication port 202 on the side close to the air outlet 12, and the second communication port 202 is connected to the air outlet 12. The inner shell 200 has a function of converging the airflow, and the airflow is all converged to the position of the air outlet 12, and there will be no loss caused by flowing to the outer shell 100, thereby further improving the wind force of the air outlet.

[0045] See also Figure 2 and Figure 8The outer shell 100 includes a first shell 101 and a second shell 102 which are arranged in an upper and lower manner. The first shell 101 and the second shell 102 are respectively provided with a cylinder 103 protruding into the shell 10, and the cylinder 103 is provided with a screw hole 223. The first shell 101 and the second shell 102 can be connected together by screwing in a screw to form a complete cover 401. A joint 203 is provided at a position corresponding to the cylinder 103 on the outer wall of the inner shell 200, and a screw hole 223 is also provided on the joint 203. During assembly, the joint 203 is located between the cylinders 103 of the first shell 101 and the second shell 102. After the screw passes through the screw holes 223 of the three, the outer shell 100 and the inner shell 200 are fixedly connected together.

[0046] In one embodiment, the housing 100 has an opening on one side corresponding to the air outlet 12. Fig. 9 The housing 100 further includes a cover plate 300 connected to the opening, and the air outlet 12 is arranged on the cover plate 300. The cover plate 300 and the housing 100 can be fixedly connected by means of snap connection, screw connection, etc. In the present embodiment, the two are snap-connected. Specifically, a protrusion 301 is provided on the inner wall of the housing 100 near the opening, and a hook-shaped hook portion 302 is provided on the cover plate 300 corresponding to the position of the protrusion 301. The hook portion 302 hooks the protrusion 301 to fix the cover plate 300 on the housing 100.

[0047] Further, the position corresponding to the second connecting port 202 on the outer shell 100 is specifically provided with a first clamp 303 on the cover plate 300, and a second clamp 305 cooperating with the first clamp 303 is provided on the inner shell 200. The first clamp 303 can be set as a protrusion, a groove, etc. The second clamp 305 can also be set as a protrusion, a groove, etc. In this embodiment, the first clamp 303 is set as a protrusion, and the first clamp 303 is set as two, which are respectively set at the upper and lower positions of the corresponding air outlet 12. The first clamp 303 located at the top is also provided with a slot 304 that penetrates the first clamp 303 along the height direction Z of the first clamp 303. The second clamp 305 is also set as a protrusion, and the second clamp 305 is set as one, which is only set at the upper position of the outer shell 100 corresponding to the second connecting port 202. During installation, the end of the inner shell 200 with the second connecting port 202 is inserted between the two first clamps 303 , the second clamp 305 is inserted into the slot 304 of the upper first clamp 303 , and the lower first clamp 303 supports the inner shell 200 .

[0048] See also Figure 2 , Figure 4 , Figure 5In one embodiment, the wristband fan further includes a night light 41. The night light 41 is disposed on the upper portion 10c of the housing 10 along the height direction Z of the housing 10. The night light 41 can be a lamp bead, a light bulb, an LED lamp bead, etc., as long as it meets the lighting requirements, and is not specifically limited here. The provision of the night light 41 enables the wristband fan to have a lighting function, and is more interesting when used by young children.

[0049] In one embodiment, the wristband fan further includes a night light switch 42, which is electrically connected to the night light 41.

[0050] In this embodiment, the wristband fan further includes a cover 401, which is disposed on the upper portion 10c of the housing 10 along the height direction Z of the housing 10 and covers the outside of the night light 41, and the night light 41 is protected by the cover 401. Preferably, the cover 401 is a transparent structure to ensure that the light of the night light 41 can be transmitted through the cover 401 to the outside.

[0051] Specifically, an annular groove 402 is provided at the upper part of the housing 10, and the lower end of the cover shell 401 is inserted into the annular groove 402. A first clamping portion 403 is provided on the annular groove 402, and a second clamping portion 404 matching the first clamping portion 403 is provided at the lower end of the cover shell 401. Specifically, the first clamping portion 403 is a plurality of protrusions provided on the inner wall of the annular groove 402, and the plurality of protrusions are distributed at intervals along the circumference of the annular groove 402. The second clamping portion 404 is a plurality of openings provided at the lower edge of the cover shell 401, and the plurality of openings are distributed at intervals along the circumference of the cover shell 401. When the lower end of the cover shell 401 is inserted into the annular groove 402, the protrusions will be inserted into the openings, so that the cover shell 401 is fixedly connected to the housing 100.

[0052] In one embodiment, the wristband fan further includes a power supply 51, an on / off switch 53, and a control panel 60, and the power supply 51 and the control panel 60 are both disposed in the housing 10. Preferably, along the height direction Z of the housing 10, the power supply 51 is located above the fan 30. The space is fully utilized to make the overall structure more compact. The power supply 51, the on / off switch 53 are electrically connected to the control panel 60, and the drive member 32 is electrically connected to the power supply 51. When the on / off switch 53 is pressed, the control panel 60 can control the power supply 51 to be powered on or off, thereby controlling the drive member 32 to start or shut down, and controlling the fan 30 to blow air or stop.

[0053] Preferably, the fan 30 also has a speed regulation function, which is also realized by the control of the control panel 60. Specifically, when the on-off switch 53 is pressed once, the fan 30 starts and rotates at the lowest speed. When the on-off switch 53 is pressed twice, the fan 30 rotates at a medium speed. When the on-off switch 53 is pressed three times, the fan 30 rotates at the highest speed. When the on-off switch 53 is pressed four times, the fan 30 stops rotating. The method of receiving and sending instructions based on the circuit board or the PLC control board is a prior art, so it is not repeated here.

[0054] The night light 41 is electrically connected to the battery, and the night light 41 and the night light switch 42 are electrically connected to the control panel 60. When the night light switch 42 is pressed, the control panel 60 can control the power supply 51 to supply power to the night light 41, and control the night light 41 to turn on or off. The control panel 60 can be a circuit board or a PLC control board, which can be purchased directly on the market, so it will not be repeated. The on-off switch 53 and the night light switch 42 both include a button and a contact set on the control panel 60. Pressing the button can apply pressure to the contact, so that the control panel 60 issues relevant instructions. The method of receiving and sending instructions based on the circuit board or the PLC control board is a prior art, so it will not be repeated.

[0055] See also Fig.10 Along the length direction Y of the housing 100, the other side of the housing 100 corresponding to the air outlet 12 is also set as an opening structure. The housing 100 also includes a back cover 400 connected to the opening, and the buttons of the night light switch 42 and the on / off switch 53 are both set on the back cover 400, and the control panel 60 is also fixed to the back cover 400. The back cover 400 and the housing 100 are snap-fitted, thereby fixing the control panel 60 in the housing 100.

[0056] Preferably, the control panel 60 is also electrically connected to a charging port 52, and an opening is provided on the rear cover 400 at a position corresponding to the charging port 52. In this embodiment, the battery is configured as a rechargeable battery, and the battery is charged through the charging port 52 to extend the service life of the fan 30. The battery can be a nickel-cadmium battery, a lithium battery, etc.

[0057] See also Figure 2 and Figure 7 In one embodiment, a recessed portion 72 is provided on the lower part of the housing 10 near the wristband 20, and the recessed portion 72 extends from the outside of the housing 10 to the inside of the housing 10, and an opening is provided on the side of the recessed portion 72 near the outside of the housing 10. That is, the inner wall of the recessed portion 72 and the wristband 20 are arranged to form a storage cavity 70. One side of the storage cavity 70 is set as an opening, so that mosquito repellent sheets, aromatherapy, essential oils and other items can be placed in the storage cavity 70. During the flow of air, the odors emitted by the above items will be brought out and blown out from the air outlet 12, so that the fan 30 has the functions of repelling mosquitoes and increasing fragrance while cooling, thereby improving the practical performance of the fan 30. Secondly, compared with the free release method, under this structure, the diffusion speed of mosquito repellent sheets, aromatherapy, essential oils and other items is faster and the diffusion range is wider.

[0058] Furthermore, the recessed portion 72 is provided with a plurality of notches 71, which are arranged at intervals along the circumference of the recessed portion 72. One side of the notch 71 is connected to the air inlet 11, and the other side of the notch 71 is connected to the storage cavity 70, thereby achieving communication between the storage cavity 70 and the air inlet 11.

[0059] In this embodiment, the wristband 20 is detachably connected to the housing 10, and the wristband 20 seals the opening while being detachably connected to the housing 10. In this structure, there is no need to set up a separate cover to seal the opening, which simplifies the structure, makes the overall structure more compact, and reduces the manufacturing cost. In addition, if the wristband 20 is damaged, the wristband 20 can be replaced separately, thereby extending the service life of the entire wristband fan.

[0060] Specifically, the housing 10 is provided with a first through hole 74, and the wristband 20 is provided with a second through hole 213. The wristband fan further includes a connector 80, which can penetrate the first through hole 74 and the second through hole 213 and detachably connect the wristband 20 to the housing 10. The connector 80 can be a bolt, a latch, a rivet, etc., and a bolt is used in the present application.

[0061] Furthermore, the air inlet 11 is provided at the lower part of the housing 10, and is correspondingly provided at the periphery of the connection between the wristband 20 and the housing 10. Specifically, the air inlet 11 is a plurality of openings 223 provided on the housing 10, and the openings 223 are provided around the periphery of the accommodating cavity. Thus, both the air duct and the air inlet 11 can bring out the smell of the items in the storage cavity 70, making it easier to diffuse. And when the fan 30 is not in use, the smell of the items in the storage cavity 70 can be dissipated outward through the air inlet 11, without affecting the mosquito repelling or fragrance enhancement function of the wristband fan.

[0062] For further information, see Figure 6 The wristband 20 includes a base 21 and a band body 22. The second through hole 213 is provided on the base 21. The base 21 is detachably connected to the housing 10 and the opening is closed. A first connecting column 73 is provided at the center of the recessed portion 72 near the side of the wristband 20, and a first through hole 74 is provided on the first connecting column 73. A second connecting column 212 is provided at the middle of the base 21 near the side of the housing 10, and the second through hole 213 is provided on the second connecting column 212. One end of the first connecting column 73 is fixedly connected to the housing 10, and the other end is inserted into the second connecting column 212. The first through hole 74 is connected to the second through hole 213.

[0063] In one embodiment, the seat body 21 is provided with an extension portion 214, which extends from a side of the seat body 21 close to the opening toward the opening. The extension portion 214 is plugged into and matched with the recessed portion 72, and the extension portion 214 and the opening cooperate to guide and limit the installation of the seat body 21. When the extension portion 214 is inserted into the opening, the first through hole 74 and the second through hole 213 are just in a connected position, making the installation operation easier.

[0064] Preferably, the extension portion 214 and the recessed portion 72 are movably connected, that is, the extension portion 214 and the recessed portion 72 can rotate, thereby driving the housing 10 to rotate in a circumferential direction relative to the wristband 20, thereby obtaining different air outlet angles.

[0065] Furthermore, a plurality of ratchet teeth 215 are spaced apart on the outer surface of the extension portion 214. A spring piece 75 is provided on the inner wall of the recessed portion 72, one end of the spring piece 75 is fixedly connected to the recessed portion 72, and the other end can be flipped up and down relative to the recessed portion 72. A protrusion 76 is provided on the end of the spring piece 75 that can be flipped up and down. During the rotation of the extension portion 214 and the recessed portion 72, the protrusion 76 and the thorns can abut against each other, thereby fixing the housing 10 at the adjusted position.

[0066] Furthermore, the belt body 22 is a flexible structure and is removably connected to the seat body 21. The above-mentioned flexible structure refers to a structure made of rubber, resin, or other materials or processed by nylon weaving or other methods. In the present embodiment, the belt body 22 is made of rubber, has a good deformation effect, can better fit the wrist, and improves the comfort of use. The detachable connection between the belt body 311 and the plug-in port 211 can be achieved by plug-in, screw connection, etc. In the present embodiment, the two are plug-in matched to facilitate disassembly and installation. Specifically, a plug-in port 211 is provided on the seat body 21, and the plug-in port 211 penetrates the seat body 21 along the length direction Y of the seat body 21. The belt body 311 is inserted into the plug-in port 211 to complete the connection with the seat body 21.

[0067] One end of the belt body 22 is provided with a socket 221, the other end is provided with a convex column 222, and a plurality of holes 223 are spaced apart on one side of the belt body 22 close to the socket 221. When in use, after one end of the belt body 22 is passed through the socket 221, the convex column 222 is inserted into the hole 223, and the belt body 22 can be looped and worn on the wrist or tied to an object such as a crib or a chair.

[0068] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A wristband fan, characterized in that: include: A shell (10), wherein an air inlet (11) is provided at a lower portion (10a) of the shell (10) along a height direction of the shell (10); and an air outlet (12) is provided at a side portion (10b) of the shell (10) along a width or length direction of the shell (10); A wristband (20) is connected to the lower part (10a) of the housing (10) along the height direction of the housing (10) and is used to be worn on a human wrist; The fan (30) comprises blades (31) and a driving member (32), wherein the blades (31) are arranged around the periphery of the driving member (32) and are connected to the driving member (32); and, with the axis in the height direction of the housing (10) as the center line, the driving member (32) can drive the fan (30) to rotate circumferentially around the center line.

2. The wristband fan according to claim 1, characterized in that: The fan blade (31) comprises a main body (311) and a plurality of blades (312), wherein the plurality of blades (312) are arranged around the main body (311); the main body (311) is rotatably sleeved outside the driving member (32) and is connected to the main body (311).

3. The wristband fan according to claim 2, characterized in that: The outer peripheral wall of the body (311) is provided with a circle of convex parts (313), and the blades (312) are distributed at intervals along the circumference of the convex parts (313) and are fixedly connected to the convex parts (313).

4. The wristband fan according to claim 1, characterized in that: The wristband fan further comprises a night light (41), and the night light (41) is arranged on the upper part (10c) of the housing (10) along the height direction of the housing (10).

5. The wristband fan according to claim 4, characterized in that: The wristband fan further comprises a cover shell (401), the cover shell (401) is arranged outside the night light (41), and the cover shell (401) is configured to be transparent.

6. The wristband fan according to claim 5, characterized in that: The upper part (10c) of the shell (10) is provided with an annular groove (402), and the cover shell (401) is inserted into the annular groove (402).

7. The wristband fan according to claim 1, characterized in that: The wristband fan further comprises a power supply (51), an on / off switch (53), and a control panel (60); the control panel (60) is electrically connected to the power supply (51); the power supply (51) is disposed in the housing (10); and along the height direction of the housing (10), the power supply (51) is located above the fan (30).

8. The wristband fan according to claim 1, characterized in that: The wristband (20) and the housing (10) are detachably connected, and the air inlet (11) is correspondingly arranged at the periphery of the connection between the wristband (20) and the housing (10).

9. The wristband fan according to claim 8, characterized in that: The housing (10) is provided with a first through hole (74), and the wristband (20) is provided with a second through hole (213); The wristband fan further comprises a connecting piece (80), wherein the connecting piece (80) is capable of penetrating the first through hole (74) and the second through hole (213), and detachably connecting the wristband (20) and the housing (10).

10. The wristband fan according to claim 9, characterized in that: The wristband (20) comprises a base (21) and a belt body (22); the belt body (22) is a flexible structure, and the belt body (22) is detachably connected to the base (21); and the second through hole (213) is provided on the base (21).

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