Combined fan

Abstract

The present invention provides a combined fan including: a tower fan body; a rotating fan hinged on the upper end surface of the tower fan body; and a driving assembly arranged in the tower fan body, the driving end of which acts on the rotating fan to drive the rotating fan to rotate; wherein the driving assembly includes: a motor arranged inside the tower fan body, a driving gear arranged on the motor shaft; a driven gear meshing with the driving gear; a top rod arranged on the driven gear and rotating with the driven gear, the top rod acts on the rotating fan to drive the rotating fan to rotate. In the present invention, the rotating fan is hinged on the upper end of the tower fan body, and under the action of the driving assembly, the air outlet of the rotating fan can rotate relative to the tower fan body, changing the air outlet angle and increasing the air outlet direction, especially in the height direction, thereby improving the problem that the air outlet range of the original tower fan is not flexible enough.

Description

Technical Field

[0001] The invention relates to the technical field of household appliances, and in particular to a combined fan. Background Art

[0002] The tower fan "throws" the wind out through the crossflow fan to form an airflow - the wind pressure caused by the rotation of the wind wheel generates centrifugal wind force, and finally transmits the wind force through the internal wind guide wall. Since the crossflow wind wheel is generally cylindrical, the tower fan is used to obtain a three-dimensional airflow wall, or "wind curtain", which is perpendicular to the ground and blows left and right. In addition, the crossflow wind wheel has many blades, so the air supply is uniform and soft, very close to natural wind, so it is deeply loved by consumers for its soft air output.

[0003] The tower fan is mostly used in the living room and other indoor environments of consumers. In this environment, consumers are mostly sitting or lying. Designers design the wind range of the tower fan according to the height from the ground when consumers are in the above state. This design can prevent the increase of useless power consumption due to excessive wind range and the waste of energy. The wind outlet height of existing tower fans is generally in the range of 30cm to 100cm from the ground.

[0004] However, with the continuous rise in temperature in recent years, the amount of sweating by the human body has increased. Sweaty users hope that their entire body can be within the blowing range of the tower fan for the purpose of anxiously blowing air or protecting furniture cleanliness. However, the air outlet height of the above-mentioned tower fans cannot blow to the consumer's head, affecting the user experience. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the blowing range of the tower fan in the prior art is not flexible enough, thereby providing a combined fan.

[0006] In order to solve the above problems, the present invention provides a combined fan comprising: a tower fan body; a rotating fan hinged on the upper end surface of the tower fan body; and a driving assembly arranged in the tower fan body, a driving end of which acts on the rotating fan to drive the rotating fan to rotate; wherein the driving assembly comprises: a motor arranged inside the tower fan body, a driving gear being arranged on the motor shaft thereof; a driven gear meshing with the driving gear; a push rod arranged on the driven gear and rotating with the driven gear, the push rod acting on the rotating fan to drive the rotating fan to rotate.

[0007] Furthermore, a clearance groove is provided on the upper end surface of the tower fan body at a position corresponding to the top rod.

[0008] Furthermore, the push rod includes: a connecting portion connected to the rotation center of the driven gear; a supporting portion arranged on the connecting portion; and a sliding groove arranged on the supporting portion.

[0009] Furthermore, a transfer rod is provided on the lower end surface of the rotating fan, and the transfer rod is movably connected in the sliding groove.

[0010] The combined fan in the present invention further comprises a sliding block arranged in the sliding groove, the sliding block is provided with a through hole, and the transfer rod is movably connected to and penetrates the through hole.

[0011] Furthermore, a hinged portion is provided on the lower end surface of the rotary fan and the upper end portion of the tower fan body, and the hinged portion is constructed to be arranged along an edge of the end surface of the rotary fan or the tower fan body.

[0012] Furthermore, the hinged portion includes a groove formed on the upper end surface of the tower fan body and a support ear protruding from the lower end surface of the rotating fan and placed in the groove.

[0013] Furthermore, the driving assembly is arranged close to the hinged portion.

[0014] Furthermore, a driven gear connecting seat is provided on the tower fan body, the connecting rod and the driven gear are installed on the driven gear connecting seat through a connecting shaft, and the connecting rod and the driven gear move synchronously.

[0015] Furthermore, the rotating fan is an axial flow fan.

[0016] The technical solution of the present invention has the following advantages:

[0017] 1. The combined fan of the present invention comprises: a tower fan body; a rotating fan hinged on the upper end surface of the tower fan body; and a driving assembly arranged in the tower fan body, a driving end of which acts on the rotating fan to drive the rotating fan to rotate; wherein the driving assembly comprises: a motor arranged inside the tower fan body, a driving gear being arranged on the motor shaft thereof; a driven gear meshing with the driving gear; a push rod arranged on the driven gear and rotating with the driven gear, the push rod acting on the rotating fan to drive the rotating fan to rotate.

[0018] In the present invention, a rotating fan is arranged at the upper end of the tower fan body. Generally, the air outlet of the rotating fan is arranged upward, so as to cooperate with the crossflow fan in the tower fan body to realize the accelerated circulation of air. However, the air outlet of the rotating fan is arranged upward, and cannot blow on the head of a person. In the present invention, the rotating fan is hinged at the upper end of the tower fan body, and the air outlet of the rotating fan can rotate relative to the tower fan body under the action of the driving component, so as to change the air outlet angle and increase the air outlet direction, especially in the height direction, thereby improving the problem that the air outlet range of the original tower fan is not flexible enough.

[0019] 2. In the combined fan of the present invention, a clearance groove is provided on the upper end surface of the tower fan body at a position corresponding to the push rod, so that the push rod can act on the lower end surface of the rotating fan.

[0020] 3. The push rod in the combined fan of the present invention comprises: a connection portion connected to the rotation center of the driven gear; a support portion arranged on the connection portion; and a slide groove arranged on the support portion, wherein the push rod rotates and drives the transfer rod to move in the slide groove. In the present invention, the push rod is directly driven by the driven gear, and the push rod drives the rotation of the rotating fan, and the structure is simple.

[0021] 4. The combined fan of the present invention also includes a slider, which is arranged in the slide groove. The slider is provided with a through hole, and the transfer rod is movably connected in the through hole. The setting of the slider reduces the noise during the movement.

[0022] 5. In the combined fan of the present invention, the lower end surface of the rotating fan and the upper end of the tower fan body are provided with a hinged portion, and the hinged portion is configured to be arranged along the edge of the end surface of the rotating fan or the tower fan body. The setting position of the hinged portion facilitates the rotation of the rotating fan, so as to minimize the interference between the rotating fan and the tower fan body during the rotation process, reduce the structural changes to the tower fan body, and simplify the design.

[0023] 6. The hinged part in the combined fan of the present invention includes a groove formed at the upper end surface of the tower fan body and a lug protruding from the lower end surface of the rotating fan and placed in the groove. In the present invention, the lug is set in the groove to hide the lug, which is beneficial to ensure that the hinged part does not leak out during the rotation of the rotating fan and does not affect the aesthetics of the combined fan. On the other hand, it can also reduce the problem of excessive gap between the lower end surface of the rotating fan and the upper end surface of the tower fan body caused by the setting of the hinged part.

[0024] 7. In the combined fan of the present invention, the driving assembly is arranged close to the hinge. The hinge, the rack and the rotating fan form a structure approximately in the shape of a right triangle. When the rotating fan rotates around the hinge at the same angle, the closer the rack is to the hinge, the smaller the arc of rotation is, and the less part is exposed to the outside world, which is conducive to maintaining the aesthetics of the combined fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A front view of a combined fan in an embodiment of the present invention;

[0027] Figure 2 A cross-sectional view of a combined fan in an embodiment provided by the present invention;

[0028] Figure 3 A diagram of an open state of a rotating fan in a combined fan in an embodiment of the present invention;

[0029] Figure 4 A schematic diagram of the structure of a top rod in a combined fan in an embodiment provided by the present invention;

[0030] Figure 5 This is a schematic diagram of the appearance structure of the combined fan in the embodiment provided by the present invention.

[0031] Description of reference numerals:

[0032] 1-Tower fan body;

[0033] 2- Turn on the fan;

[0034] 3-driving assembly; 31-motor; 32-driving gear; 33-driven gear; 34-elevator; 341-connecting part; 342-supporting part; 343-slide;

[0035] 4-adapter rod;

[0036] 5-slider; 51-through hole;

[0037] 6 - hinged part; 61 - ear; 62 - groove. DETAILED DESCRIPTION

[0038] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0042] Example

[0043] Figures 1 to 5 As shown, a combined fan provided for this embodiment includes: a tower fan body 1; a rotating fan 2, which is hinged on the upper end surface of the tower fan body 1; and a driving assembly 3, which is arranged in the tower fan body 1, and its driving end acts on the rotating fan 2 to drive the rotating fan 2 to rotate; wherein the driving assembly 3 includes: a motor 31, which is arranged inside the tower fan body 1, and a driving gear 32 is arranged on its motor shaft; a driven gear 33, which is meshed with the driving gear 32; a push rod 34, which is arranged on the driven gear 33 and rotates with the driven gear 33, and the push rod 34 acts on the rotating fan 2 to drive the rotating fan 2 to rotate.

[0044] The rotary fan 2 in this embodiment is a commonly used axial flow fan, which has a simple structure and low cost. It is easy to select and install due to its mature technology.

[0045] Of course, in some other implementations, the rotating fan 2 may also be a bladeless fan, etc.

[0046] It should also be noted that when the axial fan of this embodiment is in the initial installation position, its air outlet is set upward. During its rotation, the air outlet assembly faces the user to ensure that its air outlet direction is roughly the same as the cross-flow air outlet on the tower fan body 1, so as to ensure that the user can feel the breeze all over his body.

[0047] The tower fan body 1 in this embodiment is a nearly cylindrical structure, the rotating fan 2 is a cylindrical structure with the same diameter as the tower fan body 1, and the rotating fan 2 is installed on the upper end surface of the tower fan body 1 coaxially with the tower fan body 1 to ensure the consistency and aesthetics of the entire combined fan.

[0048] The rotating fan 2 in this embodiment is provided with an axial flow motor inside, and a grid-shaped air outlet is installed on the upper end surface. The axial flow motor is on the axis of the entire rotating fan 2 to ensure stability during the rotation process.

[0049] Furthermore, a cross-flow fan is installed on the tower fan body 1, and the air outlet thereof is arranged on the side wall of the tower fan body 1, and the wind direction is arranged perpendicular to the side wall.

[0050] In this embodiment, a rotating fan 2 is arranged at the upper end of the tower fan body 1, and the rotating fan 2 is hinged at the upper end of the tower fan body 1. Under the action of the driving component 3, the air outlet of the rotating fan 2 can rotate relative to the tower fan body 1, thereby changing the air outlet angle and increasing the air outlet direction, especially in the height direction, thereby improving the problem that the air outlet range of the original tower fan is not flexible enough.

[0051] Furthermore, a clearance groove is provided on the upper end surface of the tower fan body 1 at a position corresponding to the top rod 34 , so that the top rod can act on the lower end surface of the rotating fan 2 .

[0052] like Figure 4 As shown, the push rod 34 includes: a connecting portion 341, which is connected to the rotation center of the driven gear 33. A short shaft is protruded from the gear center of the driven gear 33. The connecting portion 341 is a sleeve structure, which is installed on the short shaft in an interference fit manner and rotates with the rotation of the driven gear 33; and a supporting portion 342, which is a rod-shaped structure and is integrally formed on the connecting portion 341; a slide groove 343 is opened on the supporting portion 342. The push rod 34 has a simple structure and is easy to install.

[0053] like Figure 2 As shown, the lower end surface of the rotating fan 2 is integrally formed with a transfer rod 4, and the transfer rod 4 is movably connected in the slide slot 343. The movement of the slide slot 342 drives the transfer rod 4 therein to rotate.

[0054] In order to reduce the resistance of the rotating fan 2 during the rotation process, a slider 5 is further provided in the present embodiment and installed in the slide groove 343. A through hole 51 is processed on the slider 5, and the transfer rod 4 is movably connected in the through hole 51. When the driven gear 33 rotates, the push rod 34 is driven to rotate together, and the slider 5 in the slide groove 343 slidably connected in the push rod 34 follows the rotation, thereby driving the transfer rod 4 to move, thereby realizing the rotation operation of the rotating fan 2.

[0055] The following is a detailed description of how the rotating fan 2 is hinged on the tower fan body 1:

[0056] The lower end surface of the rotating fan 2 and the upper end of the tower fan body 1 are formed with a hinge 6, and the hinge 6 is configured to be arranged along the edge of the end surface of the rotating fan 2 or the tower fan body 1. The setting position of the hinge 6 facilitates the rotation of the rotating fan 2, so as to minimize the interference between the rotating fan 2 and the tower fan body 1 during the rotation process, reduce the structural changes to the tower fan body 1, and simplify the design.

[0057] Furthermore, the hinged portion 6 includes a groove 62 formed at the upper end surface of the tower fan body 1 and a support ear 61 protruding from the lower end surface of the rotating fan 2 and placed in the groove. Mounting holes are processed on the two opposite groove walls of the groove 62, and mounting holes are also processed at the corresponding positions of the support ear 61 and the mounting holes on the groove wall. The rotating shaft is inserted into the above-mentioned mounting hole to realize the hinge connection between the rotating fan 2 and the tower fan body 1.

[0058] Furthermore, the driving assembly 3 is arranged close to the hinge part 6, and the hinge part 6, the transfer rod 4 and the rotating fan 2 form a structure that is approximately a right-angled triangle. When the rotating fan 2 rotates around the hinge part 6 by the same angle, the closer the transfer rod 4 is to the hinge part 6, the smaller the arc of its rotation is, and the less part is exposed to the outside world, which is beneficial to maintaining the aesthetics of the combined fan.

[0059] A driven gear connection seat is provided on the tower fan body 1, and a connecting rod 34 and a driven gear are installed on the driven gear connection seat through a connecting shaft, and the connecting rod 34 and the driven gear move synchronously. The mounting seat is a base with a gear shaft, which is screwed to the inner side wall of the tower fan body 1, and the driven gear is sleeved on the above-mentioned gear shaft.

[0060] Of course, in other embodiments, the driven gear mounting seat can also be directly formed on the inner wall of the tower fan body 1 by using an injection molding process.

[0061] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A combined fan, characterized in that: include: Tower fan body (1); A rotating fan (2) is hingedly connected to the upper end surface of the tower fan body (1); and a driving assembly (3), which is arranged in the tower fan body (1), and whose driving end acts on the rotating fan (2) to drive the rotating fan (2) to rotate; The driving component (3) comprises: A motor (31) is arranged inside the tower fan body (1), and a driving gear (32) is arranged on the motor shaft; A driven gear (33) meshing with the driving gear (32); A push rod (34) is arranged on the driven gear (33) and rotates together with the driven gear (33), and the push rod (34) acts on the rotating fan (2) to drive the rotating fan (2) to rotate; A clearance groove is provided on the upper end surface of the tower fan body (1) at a position corresponding to the top rod (34), and the top rod (34) comprises: A connecting portion (341) connected to the rotation center of the driven gear (33); A supporting portion (342) is arranged on the connecting portion (341); A slide groove (343) is arranged on the supporting portion (342); The lower end surface of the rotating fan (2) is provided with a transfer rod (4), and the transfer rod (4) is movably connected to the slide groove (343). It also includes a slider (5) arranged in the slide groove (343), and the slider (5) is provided with a through hole (51), and the transfer rod (4) is movably connected to the through hole (51).

2. The combined fan according to claim 1, characterized in that: The lower end surface of the rotary fan (2) and the upper end of the tower fan body (1) are provided with a hinged portion (6), and the hinged portion (6) is constructed to be arranged along the edge of the end surface of the rotary fan (2) or the tower fan body (1).

3. The combined fan according to claim 2, characterized in that: The hinged portion (6) comprises a groove formed on the upper end surface of the tower fan body (1) and a support ear protruding from the lower end surface of the rotating fan (2) and placed in the groove.

4. The combined fan according to claim 3, characterized in that: The driving assembly (3) is arranged close to the hinged portion (6).

5. The combined fan according to claim 1, characterized in that: A driven gear connecting seat is provided on the tower fan body (1), the top rod (34) and the driven gear are mounted on the driven gear connecting seat via a connecting shaft, and the top rod (34) and the driven gear move synchronously.

6. The combined fan according to any one of claims 1 to 5, characterized in that: The rotating fan (2) is an axial flow fan.

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