Table-stand dual-purpose double-head spray fan capable of shaking head leftwards and rightwards

Abstract

A dual-purpose double-head spray fan capable of shaking leftwards and rightwards and used on a standing table comprises a main machine and a main machine base, the main machine is installed on the main machine base, and the dual-head spray fan is characterized in that the main machine base is in a straight cylinder shape, a shaking motor for driving the main machine to shake leftwards and rightwards is arranged in the main machine base, and the main machine comprises two spray fan assemblies arranged front and back; a plurality of supporting legs capable of being opened and closed are hinged to the lower end of the host base, when the supporting legs are opened, a supporting leg structure of the desk fan is formed, when the supporting legs are closed, an inserting structure which is inserted and positioned with the upper end of a stand column of the vertical fan is formed, and the lower end of the stand column is arranged on a stand column base to be fixed. The vertical type spray fan is reasonable and compact in structure and flexible and convenient to use, can be used as a vertical type spray fan and a spray desk fan, can shake the head, and effectively increases the cooling area and the cooling effect.

Description

Technical Field

[0001] The invention belongs to the technical field of household appliances and relates to a double-head spray fan, in particular to a double-head spray fan which can shake left and right and can be used for both standing and standing. Background Art

[0002] A fan is a household appliance that uses an electric motor to drive the blades to rotate to accelerate the circulation of air. It is mainly used for cooling and circulating air. As the main heatstroke prevention and cooling tool in summer, fans are widely used in homes, classrooms, offices, shops, hospitals, hotels and other places. However, as the earth's temperature warms, the high temperature in summer increases. In order to increase the coolness of fans, spray fans have appeared. Spray fans are an outdoor cooling system or an open indoor cooling system. They combine the functions of a fan and a spray device, so that the wind blown by the fan carries moist and cool mist, which can moisten the air and effectively cool down the room.

[0003] Most of the existing spray fans have only one fan, and the cooling range is limited, and the cooling effect is not very ideal. In addition, the existing spray fans are vertical and desktop, and the heights of the two are different, and the places where they are placed are also different. In daily households, both are often required to be configured, which will take up more storage space. In addition, most of the existing spray fans cannot be easily disassembled, which is not conducive to storage and carrying.

[0004] Upon investigation, the existing Chinese patent number CN201710859615.3, "Double-head spray fan for outdoor use based on solar energy drive", includes two spray fan blade mechanisms, and the two spray fan blade mechanisms are respectively connected to the two ends of a horizontally arranged driving shaft, and a control mechanism is connected to the center of the driving shaft. The control mechanism is externally connected to a thin-film solar cell panel, and the control mechanism is connected to the base through a support rod. A pull-out water tank is arranged in the base, and the pull-out water tank is respectively connected to the two spray fan blade mechanisms through a main water supply pipe. A water supply pump is arranged on the main water supply pipe, and the water supply pump is connected to the control mechanism. This spray fan is a double-head spray fan, which increases the cooling area, but does not have a shaking head function and cannot be easily disassembled. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a double-headed spray fan which has a reasonable structural design, is flexible and convenient to use and can be used both as a table and a stand.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a double-headed spray fan that can shake left and right and can be used for both desktop and stand applications, including a main unit and a main unit base, the main unit is installed on the main unit base, and is characterized in that: the main unit base is in a straight cylindrical shape, and a shaking motor for driving the main unit to shake left and right is arranged in the main unit base, the main unit includes two spray fan assemblies arranged front and back, and a plurality of openable and closable supporting feet are hinged at the lower end of the main unit base. When the supporting feet are opened, a supporting foot structure of a desktop fan is formed, and when the supporting feet are closed, a plug-in structure is formed that is plugged and positioned with the upper end of the column of the stand fan, and the lower end of the column is fixed on the column base.

[0007] As an improvement, the spray fan assembly includes a front cover, a rear cover, an outer cover, fan blades and a water tank. The front cover and the rear cover are connected together, the outer cover is mounted outside the front cover, the water tank is arranged outside the front cover and fixed by the outer cover, an atomizer is provided at the front water outlet position of the water tank, the rear covers of the front and rear two groups of fan atomization assemblies are connected and communicated to form an integrated part, a drive shaft is horizontally inserted in the middle of the two rear covers, the two ends of the drive shaft are respectively connected to the two groups of fan blades for transmission, and the middle of the drive shaft is connected to a drive motor.

[0008] Furthermore, the main engine base is a cylindrical structure with reduced diameters at the top and bottom, and a rotating part is protruding from the upper end of the main engine base. The longitudinal section of the rotating part is an inverted U-shape. After the two rear covers are connected, a concave cavity for the rotating part to be placed is formed at the bottom. A disc damping shaft is passed through the inner hole of the rotating part, and the left and right ends of the disc damping shaft are fixed to the inner wall of the concave cavity. The main engine can be rotatably arranged on the main engine base left and right through a shaking motor, and can swing up and down at a certain angle relative to the main engine base through the disc damping shaft.

[0009] Furthermore, there are three to four supporting feet, which are evenly spaced circumferentially arranged outside the lower reduced diameter section of the main unit base. The upper end of the supporting foot is a circular shaft that is easy to rotate. A cylindrical hole is provided on the step surface of the reduced diameter section for the upper end circular shaft of the supporting foot to be inserted and limited in rotation. When the supporting foot is unfolded into place, the bottom of the supporting foot is basically flush with the bottom of the main unit base, forming a supporting foot structure for the desktop fan.

[0010] Furthermore, the supporting leg is cylindrical when closed, and a positioning socket for inserting the supporting leg is provided at the upper end of the column, a button is protruding from the outer side of the supporting leg, and a corresponding button hole is opened on one side of the upper end of the column, forming a plug-in structure that is plugged and positioned with the upper end of the column of the vertical fan.

[0011] Furthermore, the water tank is a fan-shaped frame structure with an arc-shaped upper end face. The water tank is sleeved on the upper outer part of the front cover. The inner wall of the arc surface of the water tank is matched with the outer wall of the front cover. The water inlet of the water tank is located in the middle position of the upper end of the arc surface, and the water outlet is located at the center position of the fan-shaped structure. The water outlet is connected to the water tank through a water pipe. A positioning seat for positioning the water outlet is provided in the middle part of the front end of the front cover, and a positioning rib for embedding the water supply pipe is provided between the outer wall of the positioning seat and the inner wall of the front cover.

[0012] Furthermore, the upper end surface of the outer cover is provided with a hollow portion corresponding to the water inlet position of the water tank, and an openable and closable water inlet cover is hinged at the hollow portion of the outer cover.

[0013] Furthermore, the rear end of the front cover is buckled and positioned with the rear cover by means of buckles and then fixed by screws. The outer cover is sleeved outside the front cover and is connected and fixed with the front cover by screws. A decorative ring is also buckled at the front end of the outer cover.

[0014] Furthermore, the two rear covers are an integral piece, and a handle is provided at the upper end of the two rear covers.

[0015] Finally, the atomizer comprises a casing, an atomizing head is arranged at the center of the casing, the atomizing head adopts an ultrasonic atomizing head, the front of the casing is provided with an opening, and a cover which can be rotated to open or close is arranged.

[0016] Compared with the prior art, the advantages of the present invention are: the main unit includes two spray fan assemblies arranged in front and back. When in operation, air can be discharged from both the front and back sides, and spray can be sprayed from both the front and back sides, greatly increasing the cooling area; a shaking motor is provided in the main unit base, which can realize left and right shaking, and can be manually swung up and down to adjust the air outlet angle and increase the cooling effect; it can be used directly as a table fan, or it can be inserted on a column to form a vertical fan to meet the needs of different scenes. The present invention has a reasonable and compact structure, is flexible and convenient to use, and can be used as a vertical spray fan or a spray table fan. At the same time, it can shake its head, effectively increasing the cooling area and cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of an embodiment of the present invention in a desktop state;

[0018] Figure 2 for Figure 1 A longitudinal cross-sectional view of

[0019] Figure 3 It is a schematic diagram of the structure of an embodiment of the present invention in a vertical state;

[0020] Figure 4 for Figure 1 Schematic diagram of the structure when the supporting legs are closed;

[0021] Figure 5 for Figure 4 Exploded diagram of . DETAILED DESCRIPTION

[0022] The present invention is further described in detail below with reference to the accompanying drawings.

[0023] like Figures 1 to 5 As shown, a double-headed spray fan that can shake left and right for both table and stand use includes a main unit A and a main unit base 20. The main unit A is installed on the main unit base 20. The main unit A includes two spray fan assemblies 10 that are symmetrically arranged front and back. The main unit base 20 is in a straight cylindrical shape. An shaking motor 7 for driving the main unit A to shake left and right is arranged in the main unit base 20. A plurality of openable and closable supporting legs 30 are hinged at the lower end of the main unit base 20. When the supporting legs 30 are opened, a supporting leg structure 60 of a table fan is formed. When the supporting legs 30 are closed, a plug-in structure 70 is formed that is plugged and positioned with the upper end of a column 9 of a stand fan. The lower end of the column 9 is fixedly arranged on a column base 100.

[0024] The specific structure is as follows: the spray fan assembly 10 includes a front cover 1, a rear cover 2, an outer cover 3, a fan blade 4 and a water tank 5. The front cover 1 and the rear cover 2 are connected in a pair, the outer cover 3 is set outside the front cover 1, the water tank 5 is set outside the front cover 1 and fixed by the outer cover 3, and the front end water outlet 52 of the water tank 5 is connected to the atomizer 8 arranged at the center of the front cover. The atomizer 8 usually has a housing, and the center of the housing has an atomizing head 81. The atomizing head 81 can use an ultrasonic atomizing head. The front of the housing has an opening 82, and a cover 83 that can be rotated to open or close is provided. The rear covers 2 of the front and rear groups of fan atomizing assemblies 10 are connected and communicated to form an integral part. A drive shaft 6 is horizontally inserted in the middle of the two rear covers 2. The two ends of the drive shaft 6 are respectively connected to the two groups of fan blades 4 for transmission. The middle part of the drive shaft 6 is connected to a drive motor 50.

[0025] The main engine base 20 is a cylindrical structure with reduced diameters at the top and bottom. A rotating member 21 is protruding from the upper end of the main engine base 20. The longitudinal section of the rotating member 21 is an inverted U-shape. After the two rear covers 2 are connected, a concave cavity for the rotating member 21 to be placed is formed at the bottom. A disc damping shaft 22 is passed through the inner hole of the rotating member 21. The left and right ends of the disc damping shaft 22 are fixed to the inner wall of the concave cavity. The main engine A can be rotatably arranged on the main engine base 20 through the shaking motor 7, and can be manually swung up and down at a certain angle relative to the main engine base 20 through the disc damping shaft 22.

[0026] There are four supporting feet 30 in this embodiment, which are evenly spaced in the circumferential direction outside the reduced diameter section at the lower end of the main unit base 20. A button a is convexly provided on the outer side of one of the supporting feet 30. The upper end of the supporting foot 30 is a circular shaft 301 that is easy to rotate. A cylindrical hole 201 is provided at the step surface of the reduced diameter section for the upper circular shaft 301 of the supporting foot to be inserted and limitedly rotated. When the supporting foot 30 is unfolded, the bottom of the supporting foot 30 is basically flush with the bottom of the main unit base 20, forming a supporting foot structure 60 of the desktop fan. When the supporting foot 30 is closed, it is cylindrical, thereby forming a plug-in structure 70 that is plugged and positioned with the upper end of the column 9 of the standing fan. The upper end of the column 9 is provided with a positioning socket for the plug-in structure 70 to be inserted. A corresponding button hole is opened on one side of the upper end of the column 9, which is positioned and matched with the button a on the outer side of the supporting foot 30 to achieve the positioning, fixing and unlocking of the plug-in structure 70 and the column 9.

[0027] The water tank 5 is a fan-shaped frame structure with an arc-shaped upper end surface. The water tank 5 is sleeved on the outer upper part of the front cover 1. The inner wall of the arc surface of the water tank 5 is matched with the outer wall of the front cover 1. The water inlet 51 of the water tank 5 is located in the middle position of the upper end of the arc surface, and the water outlet 52 is located at the center of the fan-shaped structure. The water outlet 52 is connected to the water tank 5 through a water pipe 50. A positioning seat for positioning the water outlet 52 is provided in the middle of the front end of the front cover 1, and a positioning rib 12 for embedding the water supply pipe 50 is provided between the outer wall of the positioning seat and the inner wall of the front cover 1. A hollow portion corresponding to the position of the water inlet 51 of the water tank 5 is opened on the upper end surface of the outer cover 3, and an openable and closable water inlet cover plate 53 is hinged at the hollow portion of the outer cover 3.

[0028] The rear end of the front cover 1 is buckled and positioned with the rear cover 2 by means of a buckle and then fixed by screws. The outer cover 3 is sleeved outside the front cover 1 and is connected and fixed with the front cover 1 by screws. A decorative ring 30 is also buckled at the front end of the outer cover 3.

[0029] The two rear covers 2 of this embodiment are an integral piece, and a handle 40 is provided at the upper end of the two rear covers 2 .

[0030] The fan operation and spraying principles of this embodiment are consistent with the prior art and will not be further described here.

[0031] When in use, the main unit A can be shaken left and right by the shaking motor 7; because there are two spray fan assemblies 10 at the front and rear, air can be discharged from both the front and rear sides during operation, and spray can be sprayed on both the front and rear sides, which greatly increases the cooling area; the main unit A can also be manually swung up and down to adjust the angle to improve the cooling effect; it can be used directly as a table fan (such as Figure 1 ), or it can be inserted into the column 9 to form a vertical fan (such as Figure 3 ) to meet the needs of different scenarios.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A double-headed spray fan that can shake left and right and can be used for both table and stand, comprising a main unit and a main unit base, the main unit is mounted on the main unit base, and is characterized by: The main unit base is in the shape of a straight cylinder, and an oscillating motor for driving the main unit to oscillate left and right is arranged inside the main unit base. The main unit includes two spray fan assemblies arranged front and back. A plurality of openable and closable supporting feet are hinged at the lower end of the main unit base. When the supporting feet are opened, a supporting foot structure of a desktop fan is formed. When the supporting feet are closed, a plug-in structure is formed that is plugged and positioned with the upper end of a column of a vertical fan, and the lower end of the column is fixed on the column base.

2. The double-headed spray fan according to claim 1, characterized in that: The spray fan assembly includes a front cover, a rear cover, an outer cover, fan blades and a water tank. The front cover and the rear cover are connected together. The outer cover is sleeved outside the front cover. The water tank is arranged outside the front cover and fixed by the outer cover. An atomizer is provided at the front water outlet position of the water tank. The rear covers of the front and rear groups of fan atomization assemblies are connected and communicated to form an integrated part. A driving shaft is horizontally inserted in the middle of the two rear covers. The two ends of the driving shaft are respectively connected to the two groups of fan blades for transmission. The middle part of the driving shaft is connected to a driving motor.

3. The double-headed spray fan according to claim 2, characterized in that: The host base is a cylindrical structure with reduced diameters at the top and bottom. A rotating part is protruding from the upper end of the host base. The longitudinal section of the rotating part is an inverted U shape. After the two rear covers are connected, a concave cavity for the rotating part to be placed is formed at the bottom. A disc damping shaft is passed through the inner hole of the rotating part. The left and right ends of the disc damping shaft are fixed to the inner wall of the concave cavity. The host can be rotatably arranged on the host base by a shaking motor, and can swing up and down at a certain angle relative to the host base through the disc damping shaft.

4. The double-headed spray fan according to claim 1, characterized in that: There are three to four supporting feet, which are evenly spaced circumferentially arranged outside the reduced diameter section at the lower end of the main unit base. The upper end of the supporting foot is a circular shaft that is easy to rotate. A cylindrical hole is provided on the step surface of the reduced diameter section for the upper end circular shaft of the supporting foot to be inserted and limited in rotation. When the supporting foot is unfolded into place, the bottom of the supporting foot is basically flush with the bottom of the main unit base, forming a supporting foot structure for the desktop fan.

5. The double-headed spray fan according to claim 1, characterized in that: The support leg is cylindrical when closed, and a positioning socket for inserting the support leg is provided at the upper end of the column. A button is protruding from the outer side of the support leg, and a corresponding button hole is opened on one side of the upper end of the column to form a plug-in structure that is plugged and positioned with the upper end of the column of the vertical fan.

6. The double-headed spray fan according to any one of claims 1 to 5, characterized in that: The water tank is a fan-shaped frame structure with an arc-shaped upper end face. The water tank is sleeved on the upper outer part of the front cover. The inner wall of the arc surface of the water tank is matched with the outer wall of the front cover. The water inlet of the water tank is located in the middle position of the upper end of the arc surface, and the water outlet is located at the center position of the fan-shaped structure. The water outlet is connected to the water tank through a water pipe. A positioning seat for positioning the water outlet is provided in the middle of the front end of the front cover, and a positioning rib for embedding the water supply pipe is provided between the outer wall of the positioning seat and the inner wall of the front cover.

7. The double-headed spray fan according to claim 6, characterized in that: The upper end surface of the outer cover is provided with a hollow portion corresponding to the water inlet position of the water tank, and an openable and closable water inlet cover plate is hinged at the hollow portion of the outer cover.

8. The double-headed spray fan according to claim 7, characterized in that: The rear end of the front cover is buckled and positioned with the rear cover by means of buckles and then fixed by screws. The outer cover is sleeved outside the front cover. The outer cover and the front cover are connected and fixed by screws. A decorative ring is buckled at the front end of the outer cover.

9. The double-headed spray fan according to any one of claims 1 to 5, characterized in that: The two rear covers are an integrated piece, and a handle is arranged at the upper end of the two rear covers.

10. The double-headed spray fan according to any one of claims 1 to 5, characterized in that: The atomizer comprises a casing, an atomizing head is arranged at the center of the casing, the atomizing head adopts an ultrasonic atomizing head, the front of the casing is provided with an opening, and a cover which can be rotated to open or close is arranged.

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