Waist hanging fan

Abstract

The utility model relates to the technical field of fans, in particular to a waist hanging fan. A waist hanging fan comprises an outer shell and an air blowing assembly, a hook is arranged on the side wall of the outer shell, the air blowing assembly comprises an inner air channel shell, an outer air channel shell and a fan, the inner air channel shell is arranged in the outer shell, and the two ends of the inner air channel shell are provided with an air inlet end and an air outlet end which are communicated with the outside; the fan is arranged in the inner air duct shell; the air guide cover is rotationally arranged at the air outlet end through two rotating shafts, the cross section of the circumferential inner edge of the air guide cover is round, the lower end of the air guide cover is located in the outer shell and arranged on the outer side of the inner air duct shell in a sleeving mode, clamping protrusions are arranged on the outer wall of the lower end of the air guide cover, and at least two clamping grooves are formed in the wall body of the outer shell or the wall body of the inner air duct shell. The clamping grooves are formed in the rotating path of the wind scooper at intervals, and the clamping protrusions are selectively matched with one clamping groove in a clamped mode. The utility model has the advantage that the wind can be blown to the body more easily.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan technical field especially relates to a hanging waist fan. BACKGROUND

[0002] The hanging waist fan is widely praised in the crowd who needs to move frequently or work in high temperature environment because of its portability and practicality. The fan is designed ingeniously, and is especially provided with flexible hooks, so that the user can easily hang it on the waistband, belt or clothes, which is not only stable but also convenient to carry, greatly meets the use demand of the user in different scenes, so that the user can always blow the wind when moving. For example, a hanging waist fan with anti-falling function with application number 202322171396.3.

[0003] However, the above-mentioned hanging waist fan is limited by the appearance requirement, and the air duct cannot meet the required air outlet requirement. At the same time, the air duct cannot be inclined, and it is difficult to blow to the body part, so the experience effect of the fan is not good. INVENTION CONTENTS

[0004] In order to solve the problems in the prior art, a hanging waist fan which can make the wind more easily blow to the body is provided.

[0005] The utility model adopts the following technical scheme to be realized: a hanging waist fan, comprising a shell and a blowing assembly, the blowing assembly comprises:

[0006] An inner air duct shell is arranged in the shell, and the two ends of the inner air duct shell are provided with an air inlet end and an air outlet end which are communicated with the outside;

[0007] A fan is arranged in the inner air duct shell; and

[0008] A wind guide cover is rotatably arranged at the air outlet end through two rotating shafts, the circumferential inner edge of the wind guide cover is circular in cross-sectional shape, the lower end of the wind guide cover is located in the shell and is sleeved on the outer side of the inner air duct shell, a clamping protrusion is arranged on the outer wall of the lower end of the wind guide cover, at least two clamping grooves are arranged on the wall of the shell or the inner air duct shell, the clamping grooves are arranged on the rotating path of the wind guide cover at intervals, and the clamping protrusion is selectively clamped and matched with a certain clamping groove.

[0009] In use, the user hangs the hanging waist fan on the waistband, belt or clothes of the user, starts the switch to make the fan rotate to realize the air outlet of the fan, and if the user wants to change the air outlet angle of the fan, the user can rotate the wind guide cover, the clamping protrusion is clamped into a certain clamping groove during rotation, the blowing angle of the wind guide cover is fixed, and directional blowing is realized.

[0010] Two rotation shafts are radially symmetrically arranged, and the two rotation shafts can be arranged on the inner wall or outer wall of the air guide cover, can be arranged on the inner wall of the shell, or can be arranged on the outer wall of the inner air duct shell. The connecting line of the two rotation shafts passes through the central axis of the air guide cover, and the direction of the connecting line is horizontal.

[0011] The scheme is arranged on the air outlet end, and the air guide cover can be rotated, so that the blown air has an inclination angle, and the user can be better blown. At the same time, the user needs to move frequently during outdoor work, so the scheme is arranged on the air guide cover, and the air guide cover can be fixed after the angle is adjusted, so that the air guide cover does not rotate randomly during movement, and the air outlet deviates from the required blowing angle.

[0012] As a preferred, a limiting platform is arranged on the inner wall of the air guide cover, and the limiting platform can abut against the end surface of the air outlet end to limit the limit position of the rotation of the air guide cover.

[0013] The limiting platform is arranged to avoid excessive rotation of the air guide cover. When the air guide cover is rotated to the limit position, the limiting platform abuts against the end surface of the air outlet end, and the end surface of the air outlet end is also the end surface of the inner air duct shell.

[0014] As a preferred, a hook is arranged on the side wall of the shell, and the arrangement position of the hook on the shell is perpendicular to the connecting line of the two rotation shafts. The limiting platform includes a first platform close to the hook and a second platform away from the hook, and the first platform and the second platform are arranged at an angle. When the first platform abuts against the end surface of the air outlet end, the air guide cover is directed to the vertical direction, and when the second platform abuts against the end surface of the air outlet end, the air guide cover is inclined to the direction of the hook side.

[0015] When the waist hanging fan is hung on the waist through the hook, the air outlet direction of the air guide cover of the waist hanging fan is mostly required to be directed to the stomach or back of the outdoor worker. Therefore, the air guide cover can be directed to the stomach or back of the human body when the waist hanging fan is hung on the waist. Therefore, the limit positions of the rotation of the air guide cover are respectively the vertical direction and the direction inclined to the hook side through the above scheme.

[0016] As a preferred, the air outlet end of the inner air duct shell is provided with an annular groove which is open upward, the air guide cover is adapted to the annular groove, and the air guide cover is provided with an abutting section which extends downward on the side away from the hook. When the air guide cover is directed to the vertical direction, the lower end of the abutting section abuts against the groove bottom of the annular groove. When the air guide cover is inclined to the direction of the hook side, the lower end of the side close to the hook of the air guide cover abuts against the groove bottom of the annular groove.

[0017] Since the limit positions of the wind deflector are respectively towards the vertical direction and the direction of the hook, the wind deflector is provided with a downwardly extending abutting section on the side away from the hook to meet the limit position of the wind deflector towards the vertical direction. Meanwhile, the wind deflector is not provided with an abutting section on the side close to the hook, but directly abuts the hook on the side close to the hook, so that the wind deflector has a space that can be rotated towards the hook side, so that the annular groove on the hook side does not need to be additionally deepened, and the structure is more simple and compact.

[0018] Preferably, the outer wall of the abutting section is provided with the clamping protrusion.

[0019] Since the abutting section is a lengthened section of the wind deflector, the clamping protrusion is arranged on the abutting section, and the structure is more compact.

[0020] Preferably, the clamping grooves in the shell are arranged on the side away from the hook, the number of the clamping grooves is two, and the clamping grooves are respectively a vertical clamping groove and an inclined clamping groove, and the vertical clamping groove is located below the inclined clamping groove.

[0021] The two clamping grooves meet the requirements that the wind deflector can be tilted towards the vertical direction and the direction of the hook.

[0022] Preferably, the two ends of the inner air duct shell respectively include an upper inner air duct shell and a lower inner air duct shell, the inner diameter of the upper inner air duct shell gradually decreases from bottom to top, the lower inner air duct shell includes an air inlet section having an air inlet end and a fan section having a fan, the air inlet section is located at the lower end of the fan section, the inner diameter of the air inlet section gradually decreases from bottom to top, and the inner diameter of the fan section gradually increases from bottom to top.

[0023] The inner diameter of the air inlet section gradually decreases from bottom to top, so that the opening of the lowermost end of the air inlet section is larger to facilitate air inlet. Meanwhile, the inner diameter of the fan section gradually increases from bottom to top, so that the connection between the fan section and the air inlet section has a bend, and the effects of airflow concentration and radial pressure increase can be achieved, so that the internal flow field is stable and sufficient air pressure and air volume are provided, and the operation efficiency of the fan is improved. Meanwhile, the inner diameter of the upper inner air duct shell gradually decreases from bottom to top to enhance the wind speed, so that the wind power is stronger.

[0024] Preferably, the inner air duct shell further includes a middle inner air duct shell located between the upper inner air duct shell and the lower inner air duct shell, the middle inner air duct shell is annular as a whole and is connected with the upper inner air duct shell and the lower inner air duct shell at the upper end and the lower end respectively, and the middle inner air duct shell is provided with a fixing frame for fixing the fan.

[0025] Preferably, the hook includes a waist hook and a clothes hook arranged on opposite sides of the shell, the hanging directions of the waist hook and the clothes hook are opposite, the wind deflector can be tilted towards the waist hook side, and cannot be tilted towards the clothes hook side.

[0026] The hanging direction of the waist hook and the clothes hook is opposite, so that the fan can be hung on clothes or a belt according to different needs, different hooking positions make the orientation of the air outlet different. Meanwhile, the air deflector can be inclined towards the waist hook side because the waist hook is the main hook used, most of which are hung on the waist hook, so that the wind blows towards the human body.

[0027] Preferably, the hook is provided with a supporting leg, and the supporting leg is rotatably connected with the hook.

[0028] The supporting leg can support the hook, thereby supporting the whole fan, so that the user can place the whole fan on a table top when resting or when not hanging the fan on the waist, and the supporting leg supports the fan at an inclination angle, thereby facilitating blowing the wind to the face of the user.

[0029] Compared with the prior art, the utility model has the advantages that the rotatable air deflector is arranged at the air outlet end, so that the blown wind has an inclination angle and can better blow to the user; meanwhile, the user of outdoor operation needs to frequently move, so that the scheme further has the advantages that the clamping and cooperation of the clamping protrusion and the clamping groove can fix the air deflector after the angle is adjusted, thereby avoiding the random rotation of the air deflector in the moving process of the operator, and the wind outlet deviates from the required blowing angle. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a structure schematic view of the air deflector of the utility model in the vertical state;

[0031] Figure 2 It is a structure schematic view of the air deflector in the inclination state;

[0032] Figure 3 It is a structure schematic view in the shell;

[0033] Figure 4 It is a sectional view of Figure 1 ;

[0034] Figure 5 It is a sectional view of Figure 2 ;

[0035] Figure 6 It is an enlarged view of the circled part; Figure 4

[0036] Figure 7 It is an enlarged view of the circled part; Figure 5

[0037] Figure 8 It is a sectional view of the inner air duct shell;

[0038] Figure 9 ​​Structure diagram of the outflow end of the inner air duct shell;

[0039] Figure 10 Structure diagram of the air guide cover.

[0040] Fig. 1 is an outer shell; 11 is a waist hook; 111 is a supporting leg; 12 is a clothes hook; 13 is a battery; 14 is a circuit board; 2 is an inner air duct shell; 21 is an upper inner air duct shell; 211 is a rotating shaft hole; 22 is a middle inner air duct shell; 23 is a lower inner air duct shell; 231 is a fan section; 232 is an air inlet section; 3 is an air guide cover; 31 is an abutting section; 32 is a clamping protrusion; 33 is a rotating shaft; 4 is a fixing frame; 5 is a fan; 51 is a motor; 52 is a fan blade; 61 is a first table top; 62 is a second table top; 71 is a vertical clamping groove; 72 is an inclined clamping groove; 8 is an annular groove. DETAILED DESCRIPTION

[0041] The utility model will be further described below according to the drawings and specific embodiments.

[0042] As Figures 1 to 3 shown, the embodiment discloses a waist fan, which comprises an outer shell 1, the whole outer shell 1 is columnar as a whole, the upper end of the outer shell 1 is an air outlet, and the lower end is an air inlet. The opposite sides of the outer shell 1 are each provided with a hook. An inner air duct shell 2 is arranged in the outer shell 1, the inner air duct shell 2 extends along the up-down direction of the outer shell 1, the upper end of the inner air duct shell 2 is an air outlet end, and the lower end is an air inlet end, and the air outlet end and the air inlet end are respectively communicated with the outside through the air outlet and the air inlet of the outer shell 1. The side of the inner air duct shell 2 in the outer shell 1 is further provided with a battery 13 and a circuit board 14.

[0043] As Figures 3 to 5 and Figure 8 shown, the inner air duct shell 2 comprises an upper inner air duct shell 21, a middle inner air duct shell 22 and a lower inner air duct shell 23 from top to bottom. The middle inner air duct shell 22 is connected to the upper inner air duct shell 21 and the lower inner air duct shell 23 through a stopper. The upper end of the upper inner air duct shell 21 is rotatably connected with an air guide cover 3. A fixing frame 4 is arranged in the middle inner air duct shell 22, the fixing frame 4 is fixed with a fan 5, the fan 5 comprises a motor 51 and a fan blade 52, and the fan 5 is arranged in the lower inner air duct shell 23.

[0044] The upper inner air duct shell 21 gradually decreases from bottom to top, the inner diameters of the middle inner air duct shell 22 are all same and are same with the maximum inner diameters of the upper inner air duct shell 21 and the lower inner air duct shell 23. The lower inner air duct shell 23 comprises an air inlet section 232 with an air inlet end and a fan section 231 with the fan 5, the air inlet section 232 is located at the lower end of the fan section 231, the inner diameter of the air inlet section 232 gradually decreases from bottom to top, and the inner diameter of the fan section 231 gradually increases from bottom to top, so that the connecting part of the fan section 231 and the air inlet section 232 is inwardly concave.

[0045] AsFigures 4 to 10 As shown, the outer wall of the upper inner air duct shell 21 has inner and outer two layers, and the annular groove 8 with an upward opening is formed between the two layers of wall bodies. Two radially symmetrical rotation shaft holes 211 are arranged on the groove wall of the annular groove 8. Two rotation shafts 33 of the air deflector 3 are arranged to extend into the rotation shaft holes 211, so that the air deflector 3 is rotationally connected to the air outlet end of the inner air duct shell 2.

[0046] The hooks include a waist hook 11 and a clothes hook 12, and the hanging directions of the waist hook 11 and the clothes hook 12 are oppositely arranged. The waist hook 11 and the clothes hook 12 are both made of elastic plastic or iron parts, and can clamp parts such as belts, trouser belts or collars. The circumferential inner edge of the air deflector 3 is circular in cross-sectional shape, and the line connecting the two rotation shafts 33 of the air deflector 3 is perpendicular to the line connecting the waist hook 11 and the clothes hook 12. The rotation path of the air deflector 3 is located between the waist hook 11 and the clothes hook 12. A supporting leg 111 is rotationally connected to the waist hook 11, and the supporting leg 111 can be opened and closed by rotation.

[0047] A limiting table surface is arranged on the inner wall of the air deflector 3, and the limiting table surface includes a first table surface 61 close to the clothes hook 12 and a second table surface 62 close to the waist hook 11. The first table surface 61 and the second table surface 62 are arranged at an angle. The rotation limit position of the air deflector 3 is the vertical direction and the direction inclined to the side of the waist hook 11. When the first table surface 61 abuts against the end surface of the air outlet end, the air deflector 3 is inclined to the side of the waist hook 11.

[0048] The air deflector 3 is provided with an abutting section 31 extending downward at the side close to the clothes hook 12. The abutting section 31 is arc-shaped and the curvature is matched with the overall curvature of the air deflector 3. When the air deflector 3 is inclined to the vertical direction, the lower end of the abutting section 31 abuts against the groove bottom of the annular groove 8. The air deflector 3 is not provided with an abutting section 31 at the side close to the waist hook 11, so when the air deflector 3 is inclined to the side of the waist hook 11, the lower end of the side close to the waist hook 11 of the air deflector 3 abuts against the groove bottom of the annular groove 8. A clamping protrusion 32 is arranged on the outer wall of the abutting section 31. A clamping groove is arranged on the groove wall of the annular groove 8 close to the clothes hook 12, and the clamping groove is located on the rotation path of the air deflector 3. The number of the clamping grooves is two, and they are a vertical clamping groove 71 and an inclined clamping groove 72. The vertical clamping groove 71 is located below the inclined clamping groove 72.

[0049] In other embodiments, the annular groove 8 can also be arranged in the following manner. The wall body of the air outlet end of the upper inner air duct shell 21 is not a double-layer structure, but a single-layer structure. A ring-shaped convex edge extending downward is arranged at the air outlet of the outer shell 1, and the annular groove is formed between the ring-shaped convex edge and the wall body of the air outlet end of the upper inner air duct shell 21. In this case, the clamping groove can be arranged on the outer shell 1.

[0050] In use, the user will hang the waist-hung fan on the user's trouser waistband, belt or clothing when working outdoors, start the switch to make the fan rotate to achieve the fan air outlet, at this time the user can change the fan air outlet angle by turning the air guide cover 3, so that the air guide cover 3 rotates around the rotating shaft 33 as the rotating center, and the clamping protrusion 32 is clamped into a certain vertical clamping slot 71 or inclined clamping slot 72 during rotation, at this time the air blowing angle of the air guide cover 3 is fixed and directional.

Claims

1. A hanging waist fan comprising a housing and a blowing assembly, characterized in that, The blowing assembly comprises: an inner air duct shell arranged in the outer shell, two ends of the inner air duct shell being provided with an air inlet end and an air outlet end communicating with the outside; a fan arranged in the inner air duct shell; and a guide cover arranged in the air outlet end through two rotating shafts, a circumferential inner edge of the guide cover being circular in cross section, a lower end of the guide cover being located in the outer shell and sleeved on an outer side of the inner air duct shell, an outer wall of the lower end of the guide cover being provided with a clamping protrusion, and at least two clamping grooves being arranged on a wall of the outer shell or the inner air duct shell, the clamping grooves being arranged on a rotating path of the guide cover at intervals, and the clamping protrusion being selectively clamped with a certain clamping groove.

2. The hanging waist fan of claim 1, wherein: A limiting platform is arranged on an inner wall of the guide cover, and the limiting platform is abutted with an end surface of the air outlet end to limit an extreme position of rotation of the guide cover.

3. The hanging waist fan of claim 2, wherein: A hook is arranged on a side wall of the outer shell, and the hook is arranged vertically to a line connecting the two rotating shafts, the limiting platform comprises a first platform close to the hook and a second platform away from the hook, and the first platform and the second platform are arranged at an angle, the guide cover is inclined towards a vertical direction when the first platform is abutted with the end surface of the air outlet end, and the guide cover is inclined towards a direction of the hook when the second platform is abutted with the end surface of the air outlet end.

4. The hanging waist fan of claim 3, wherein: The air outlet end of the inner air duct shell is provided with an annular groove opening upward, the guide cover is fitted in the annular groove, and the guide cover is provided with an abutting section extending downward on a side away from the hook, the lower end of the abutting section is abutted with a groove bottom of the annular groove when the guide cover is inclined towards the vertical direction, and the lower end of the side of the guide cover close to the hook is abutted with the groove bottom of the annular groove when the guide cover is inclined towards the direction of the hook.

5. The hanging waist fan of claim 4, wherein: The clamping protrusion is arranged on an outer wall of the abutting section.

6. The hanging waist fan of claim 4, wherein: The clamping grooves are arranged on groove walls of the annular groove away from the hook, the number of the clamping grooves is two, and the clamping grooves are a vertical clamping groove and an inclined clamping groove respectively, and the vertical clamping groove is located below the inclined clamping groove.

7. The hanging waist fan according to any one of claims 1 to 6, characterized in that: The two ends of the inner air duct shell respectively comprise an upper inner air duct shell and a lower inner air duct shell, an inner diameter of the upper inner air duct shell gradually decreases from bottom to top, the lower inner air duct shell comprises an air inlet section having the air inlet end and a fan section having the fan, the air inlet section is located at a lower end of the fan section, an inner diameter of the air inlet section gradually decreases from bottom to top, and an inner diameter of the fan section gradually increases from bottom to top.

8. The hanging waist fan of claim 7, wherein: The inner air duct shell further comprises a middle inner air duct shell located between the upper inner air duct shell and the lower inner air duct shell, the middle inner air duct shell is annular in whole and is connected with the upper inner air duct shell and the lower inner air duct shell at upper and lower ends respectively, and a fixing frame is arranged in the middle inner air duct shell, and the fixing frame is used for fixing the fan.

9. The hanging waist fan according to any one of claims 3 to 6, characterized in that: The hook comprises a waist hook and a clothes hook arranged on opposite sides of the outer shell, the hanging directions of the waist hook and the clothes hook are opposite, the guide cover can be inclined towards the side of the waist hook, and the guide cover cannot be inclined towards the side of the clothes hook.

10. The hanging waist fan according to any one of claims 3 to 6, characterized in that: A supporting leg is arranged on the hook, and the supporting leg is rotatably connected with the hook.

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