Tower fan convenient to clean

Abstract

The utility model relates to a tower fan convenient to clean. The tower fan comprises a base assembly; the shell assembly is rotatably connected to the base assembly and comprises a front shell body and a rear shell body, and a detachable air inlet grille is arranged on the surface of the rear shell body; the wind generating mechanism is arranged in the shell assembly and comprises a driving motor mounted in the shell assembly and a wind wheel connected with the driving motor; a rotating shaft and a shaft sleeve which are coaxially arranged are arranged at the two opposite ends of the wind wheel respectively, the rotating shaft is movably inserted into the shell, and the shaft sleeve is fixedly connected to an output shaft of the driving motor in a sleeving mode. When the tower fan needs to be disassembled and cleaned, the air inlet grille and the wind wheel can be independently disassembled, operation is easy and convenient, cleaning of the air inlet grille, the wind wheel and the shell by a user is greatly facilitated, and the user can deeply clean all corners in the tower fan conveniently.

Description

Technical Field

[0001] This utility model relates to the field of tower fans that are easy to clean, and more particularly, to a tower fan that is easy to clean. Background Technology

[0002] Tower fans are electric fans that use a cross-flow impeller to create a three-dimensional airflow. They deliver air through the rotation of an internal impeller, avoiding the safety hazards of traditional fan blades. They provide a gentle, even breeze, similar to natural wind, making them suitable for the elderly, children, and people with sensitivities. In related technologies, tower fans typically consist of two detachable outer casings and an impeller located within them. Over time, the impeller accumulates a significant amount of dust, requiring regular cleaning. However, cleaning tower fans often requires completely disassembling both outer casings to remove the impeller, making the process cumbersome and inconvenient. Utility Model Content

[0003] In view of this, the present invention provides a tower fan with a quick-disassembly impeller that is easy to clean.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] An easy-to-clean tower fan includes:

[0006] Base assembly;

[0007] A housing assembly rotatably connected to the base assembly, the housing assembly including a front housing and a rear housing, the surface of the rear housing having a removable air intake grille;

[0008] The air-generating mechanism is disposed inside the housing assembly. The air-generating mechanism includes: a drive motor installed inside the housing assembly and a fan wheel connected to the drive motor; the fan wheel has a coaxially arranged rotating shaft and a bushing at opposite ends. The rotating shaft is movably inserted into the housing, and the bushing is fixedly sleeved on the output shaft of the drive motor.

[0009] In the above technical solution, a detachable air intake grille is provided on the rear housing, and the impeller can be detached from the output shaft of the drive motor. Therefore, when it is necessary to disassemble and clean, the air intake grille and the impeller can be disassembled separately without disassembling the entire housing. The operation is simple and convenient, which greatly facilitates the user's cleaning of the air intake grille, the impeller and the housing. It allows the user to thoroughly clean every corner inside the tower fan, remove dust, dirt and other impurities, and prevent dust from being blown back into the air and affecting the indoor air quality.

[0010] Optionally, in one possible implementation, the bushing has a first threaded hole on its side wall, and a first bolt is threaded into the first threaded hole, which can abut against the output shaft of the drive motor.

[0011] In the above technical solution, the first bolt can abut against the output shaft of the drive motor after passing through the first threaded hole. This effectively enhances the connection stability between the bushing and the output shaft of the drive motor, preventing the bushing from loosening or shifting on the output shaft and ensuring stable operation of the impeller. It also facilitates the disassembly of the impeller; simply unscrewing the first bolt allows the bushing to be separated from the output shaft, making the operation simple and quick.

[0012] Optionally, in one possible implementation, a mounting base is provided inside the front housing, and the drive motor is fixedly mounted on the mounting base.

[0013] In the above technical solution, the mounting base facilitates the installation of the drive motor, providing a specific mounting position. During the production and assembly of the tower fan, the drive motor can be easily and quickly installed onto the mounting base according to the designed process. The mounting base also provides additional structural support for the front housing, enhancing the structural strength of the entire tower fan casing assembly.

[0014] Optionally, in one possible implementation, the output shaft of the drive motor has an annular groove on its outer periphery, and a retaining ring is engaged in the annular groove, the retaining ring being located below the bushing.

[0015] In the above technical solution, the circlip effectively restricts the axial displacement of the bushing. During tower fan operation, the rotation of the impeller and potential vibrations will prevent the bushing from sliding down along the output axis, ensuring the stability of the impeller operation. Furthermore, clear component installation markings and positioning references are provided, making it easy to determine the bushing's installation position during assembly, and ensuring correct bushing installation through the position of the circlip.

[0016] Optionally, in one possible implementation, a support base is provided inside the front housing, and a rubber sleeve with an insertion hole is installed on the support base. A bearing is provided in the insertion hole of the rubber sleeve, and the rotating shaft is movably inserted into the insertion hole, with the bearing sleeved on the outer periphery of the rotating shaft.

[0017] In the above technical solution, the bearing in the rubber sleeve is fitted onto the outer circumference of the rotating shaft. When the wind turbine rotates, the rotating shaft and the bearing experience rolling friction, which makes the rotation of the wind turbine smoother, reduces energy loss caused by frictional resistance, and improves the operating efficiency of the tower fan. Furthermore, the rubber sleeve has a good vibration damping effect. When the wind turbine vibrates, the rubber sleeve can absorb some of the vibration energy, reducing the transmission of vibration to the front casing and the entire tower fan structure, thus helping to improve the overall stability of the tower fan.

[0018] Optionally, in one possible implementation, the bottom of the air intake grille is provided with a plurality of plug-in plates, the rear housing is provided with plug-in grooves that form a sliding plug-in engagement with the plug-in plates, and the air intake grille is fixed to the rear housing by the second bolt.

[0019] In the above technical solution, the air intake grille can be quickly positioned during installation. The user only needs to align the plug-in plate with the plug-in slot and slide it in to initially fix the position of the air intake grille. Then, the air intake grille is fixed to the rear housing with the second bolt. This two-step fixing method utilizes the convenience of the plug-in structure for quick positioning and ensures a stable connection of the air intake grille with the bolts.

[0020] Optionally, in one possible implementation, the surface of the air intake grille is provided with a through hole, and the rear housing is provided with a corresponding second threaded hole. The through hole and the second threaded hole are detachably fixedly connected by a second bolt.

[0021] In the above technical solution, in addition to the cooperation of the bottom plug plate and plug slot, the through hole on the surface of the air intake grille and the second threaded hole on the rear housing are detachably fixedly connected by the second bolt, which is equivalent to providing an additional fixing point for the connection between the air intake grille and the rear housing, thereby enhancing the connection stability between the air intake grille and the rear housing.

[0022] Optionally, in one possible implementation, multiple buckles are provided on both sides of the air intake grille, and multiple slots are correspondingly provided on the rear housing, with the buckles being able to engage in the corresponding slots.

[0023] In the above technical solution, the design of the clips and slots can further improve the positioning accuracy and installation efficiency when installing the air intake grille. Simultaneously, the engagement of multiple clips and slots provides multi-point connection between the air intake grille and the rear housing. This multi-point connection method can evenly distribute stress and improve the stability of the tower fan operation.

[0024] Optionally, in one possible implementation, the rear housing is provided with a plurality of positioning plates, and the air intake grille is provided with corresponding positioning ribs, the positioning ribs being able to fit against the positioning plates.

[0025] In the above technical solution, the positioning plate and positioning ribs provide precise guidance for the installation of the air intake grille. During installation, the positioning ribs slide along the positioning plate, ensuring that the air intake grille is accurately installed in the predetermined position, avoiding deviations during installation and improving installation accuracy.

[0026] Optionally, in one possible implementation, the base assembly includes a support body and a swaying mechanism disposed on the support body, the swaying mechanism being used to drive the rotation of the housing.

[0027] In the above technical solution, the oscillating mechanism enables the tower fan to oscillate. During use, the airflow range of the tower fan is no longer limited to a fixed direction, but can oscillate and deliver air within a certain angle range. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is an exploded view of the overall structure of one embodiment.

[0030] Figure 2 This is a schematic diagram of the overall structural assembly of one embodiment.

[0031] Figure 3 This is a schematic diagram of the assembly of a wind turbine in one embodiment.

[0032] Figure 4 for Figure 3 Enlarged view of part A in the middle.

[0033] Figure 5 This is a schematic diagram of the air intake grille in one embodiment.

[0034] Figure 6 This is a schematic diagram of the rear shell structure in one embodiment.

[0035] Reference numerals: 1-Base assembly; 2-Front housing; 21-Mounting base; 22-Support base; 221-Rubber sleeve; 3-Rear housing; 31-Insertion groove; 32-Second threaded hole; 33-Slot; 34-Positioning plate; 4-Air intake grille; 41-Insertion plate; 42-Through hole; 43-Snap fastener; 44-Positioning rib; 5-Air generating mechanism; 51-Drive motor; 511-Annular groove; 512-Snap ring; 52-Iron wheel; 521-Shaft; 522-Shaft sleeve; 5221-First threaded hole. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0038] Please refer to Figure 1 and Figure 2 This embodiment provides a tower fan that is easy to clean, including: a base assembly 1, a housing assembly rotatably connected to the base assembly 1, and an air-generating mechanism 5 disposed inside the housing assembly; the housing assembly includes a front housing 2 and a rear housing 3, which are fixedly connected by screws, and the surface of the rear housing 3 is provided with a detachable air intake grille 4, and the surface of the front housing 2 is provided with multiple air outlets, which are arranged opposite to the air intake grille 4; the air-generating mechanism 5 includes: a drive motor 51 installed inside the housing assembly, and a fan wheel 52 connected to the drive motor 51; the opposite ends of the fan wheel 52 are respectively provided with a coaxially arranged rotating shaft 521 and a bushing 522, the rotating shaft 521 is movably inserted into the housing, and the bushing 522 is fixedly sleeved on the output shaft of the drive motor 51.

[0039] In this embodiment, a detachable air intake grille 4 is provided on the rear housing 3, and the impeller 52 can be detached from the output shaft of the drive motor 51. Therefore, when it is necessary to disassemble and clean, the air intake grille 4 and the impeller 52 can be disassembled separately without disassembling the entire housing assembly. The operation is simple and convenient, which greatly facilitates the user to clean the air intake grille 4, the impeller 52 and the housing. It allows the user to thoroughly clean every corner inside the tower fan, remove dust, dirt and other impurities, and prevent dust from being blown back into the air and affecting the indoor air quality.

[0040] Please refer to Figure 3 and Figure 4In this embodiment, a first threaded hole 5221 is provided on the side wall of the bushing 522. A first bolt (not shown in the figure) is internally threaded into the first threaded hole 5221, and the first bolt can abut against the output shaft of the drive motor 51. The first bolt can extend into the interior of the bushing 522. By controlling the length of the extension, the pressure on the output shaft of the drive motor 51 can be controlled, that is, the bushing 522 can be fixed by pressure and friction. Specifically, the bushing 522 is located on the lower end face of the impeller 52, that is, the end close to the base assembly 1, while the rotating shaft 521 is located on the upper end face of the impeller 52.

[0041] The first bolt passes through the first threaded hole 5221 and abuts against the output shaft of the drive motor 51. This effectively enhances the connection stability between the bushing 522 and the output shaft of the drive motor 51, preventing the bushing 522 from loosening or shifting on the output shaft and ensuring the stable operation of the impeller 52. It also facilitates the disassembly of the impeller 52; simply unscrewing the first bolt allows the bushing 522 to be separated from the output shaft, making the operation simple and quick.

[0042] Please refer to Figure 1 It should be noted that a mounting base 21 is provided inside the front housing 2, and the drive motor 51 is fixedly mounted on the mounting base 21. The mounting base 21 is horizontally mounted on the inner wall of the front housing 2 and is fixedly connected to the front housing 2. The drive motor 51 can be fixed on the mounting base 21 by screws or other parts, so that the output shaft of the drive motor 51 is set upward.

[0043] The mounting base 21 facilitates the installation of the drive motor 51, providing a specific mounting position for it. During the production and assembly of the tower fan, the drive motor 51 can be easily and quickly installed onto the mounting base 21 according to the designed process. The mounting base 21 also provides additional structural support for the front housing 2, enhancing the structural strength of the entire tower fan housing assembly.

[0044] In addition, please refer to Figure 4 The output shaft of the drive motor 51 has an annular groove 511 on its outer periphery, and a retaining ring 512 is engaged in the annular groove 511. The retaining ring 512 is located below the bushing 522. The annular groove 511 surrounds the outer periphery of the output shaft of the drive motor 51 in an annular shape, and the bushing 522 can abut against the upper end face of the retaining ring 512.

[0045] The snap ring 512 effectively restricts the axial displacement of the bushing 522. During tower fan operation, the rotation of the impeller 52 and potential vibrations will prevent the bushing 522 from sliding down the output axis, ensuring the stability of the impeller 52's operation. Clear component installation markings and positioning references are provided, making it easy to determine the installation position of the bushing 522 during assembly. The position of the snap ring 512 ensures correct installation of the bushing 522. Simultaneously, the snap ring 512 also possesses a certain degree of elasticity, providing a buffering effect during impeller 52 operation, thereby reducing noise and improving stability.

[0046] Please refer to this again. Figure 1 In this embodiment, a support base 22 is provided inside the front housing 2. The support base 22 is disposed opposite to the mounting base 21. A rubber sleeve 221 with an insertion hole is mounted on the support base 22. A bearing (not shown in the figure) is provided in the insertion hole of the rubber sleeve 221. The rotating shaft 521 is movably inserted into the insertion hole, and the bearing is sleeved on the outer periphery of the rotating shaft 521. The support base 22 is provided with a mounting hole, and the outer periphery of the rubber sleeve 221 is provided with a groove, so that the rubber sleeve 221 has an "I"-shaped cross section. The groove is engaged with the edge of the mounting hole to fix the rubber sleeve 221. The insertion hole in the rubber sleeve 221 can be a blind hole structure. The bearing is fixed inside the rubber sleeve 221 and is coaxially arranged with the rotating shaft 521. The rotating shaft 521 is inserted into the bearing and has a clearance fit with the bearing. The rotating shaft 521 can rotate freely in the insertion hole, while also retaining a certain axial displacement space. When the first bolt is loosened, the impeller 52 can move upward to disengage the bushing 522 from the output shaft of the drive motor 51, and then swing at a certain angle to disengage the shaft 521 from the rubber sleeve 221, thereby completing the disassembly of the impeller 52.

[0047] In this embodiment, the bearing in the rubber sleeve 221 is fitted onto the outer circumference of the rotating shaft 521. When the impeller 52 rotates, there is rolling friction between the rotating shaft 521 and the bearing, which makes the rotation of the impeller 52 smoother, reduces energy loss caused by frictional resistance, and improves the operating efficiency of the tower fan. In addition, the rubber sleeve 221 has a good vibration damping effect. When the impeller 52 vibrates during rotation, the rubber sleeve 221 can absorb some of the vibration energy, reducing the vibration transmission to the front housing 2 and the entire tower fan structure, which helps to improve the overall stability of the tower fan.

[0048] Please refer to Figure 1 and Figure 4In this embodiment, the bottom of the air intake grille 4 is provided with several insertion plates 41, and the rear housing 3 is provided with insertion grooves 31 that form a sliding insertion fit with the insertion plates 41. The air intake grille 4 is fixed to the rear housing 3 by a second bolt. The insertion plates 41 extend along the length of the air intake grille 4. When assembling the air intake grille 4, the insertion plates 41 are inserted into the insertion grooves 31 to form a preliminary fixation, and then the other point of the air intake grille 4 is locked by the second bolt. The operation is simple and convenient.

[0049] The air intake grille 4 can be quickly positioned during installation. The user only needs to align the plug plate 41 with the plug slot 31 and slide it in to initially fix the position of the air intake grille 4. Then, the air intake grille 4 is fixed to the rear housing 3 by the second bolt. This two-step fixing method utilizes the convenience of the plug structure for quick positioning and ensures a stable connection of the air intake grille 4 by the bolt.

[0050] Please refer to Figure 1 Specifically, the surface of the air intake grille 4 is provided with a through hole 42, which is close to the upper end of the air intake grille 4. The rear housing 3 is provided with a corresponding second threaded hole 32. The through hole 42 and the second threaded hole 32 are detachably fixedly connected by a second bolt.

[0051] In addition to the cooperation between the bottom connector plate 41 and the connector slot 31, the through hole 42 on the surface of the air intake grille 4 and the second threaded hole 32 on the rear housing 3 are detachably fixed together by the second bolt. This provides an additional fixing point for the connection between the air intake grille 4 and the rear housing 3, thereby enhancing the connection stability between the air intake grille 4 and the rear housing 3. It can be understood that the connector plate 41 fixes the lower part of the air intake grille 4 to the rear housing 3, and the second bolt fixes the upper part of the air intake grille 4 to the rear housing 3, achieving the fixation of the air intake grille 4 through a two-point fixing method.

[0052] In addition, please refer to Figure 5 and Figure 6 Multiple clips 43 are provided on both sides of the air intake grille 4, and multiple slots 33 are provided on the rear housing 3. The clips 43 can be engaged in the corresponding slots 33. The clips 43 are spaced apart along the length of the air intake grille 4. When the air intake grille 4 is assembled, the clips 43 can be inserted into the corresponding slots 33. At this time, when the connecting plate 41 is inserted into the connecting slot 31 and the air intake grille 4 moves down a certain distance, the clips 43 move down simultaneously and abut against the slots 33, thereby completing the assembly. In this way, the two sides of the air intake grille 4 can be fixed to the rear housing 3.

[0053] The design of the clips 43 and slots 33 further improves the positioning accuracy and installation efficiency when installing the air intake grille 4. Simultaneously, the engagement of multiple clips 43 and slots 33 provides multi-point connection between the air intake grille 4 and the rear housing 3. This multi-point connection method can evenly distribute stress and improve the stability of the tower fan operation.

[0054] Please continue to refer to this. Figure 5 and Figure 6 In this embodiment, the rear housing 3 is provided with several positioning plates 34, and the air intake grille 4 is provided with corresponding positioning ribs 44, which can fit into the positioning plates 34. The positioning plates 34 and positioning ribs 44 provide precise guidance for the installation of the air intake grille 4. During installation, the positioning ribs 44 slide along the positioning plates 34, ensuring that the air intake grille 4 is accurately installed in the predetermined position, avoiding deviations during installation and improving installation accuracy. At the same time, the positioning ribs 44 also strengthen the air intake grille 4.

[0055] It should be noted that the base assembly 1 in this embodiment includes a support body and an oscillating mechanism disposed on the support body. The oscillating mechanism is used to drive the rotation of the outer casing. The oscillating mechanism is a conventional technology in the prior art, and its specific structure will not be described in detail here. The oscillating mechanism enables the tower fan to achieve an oscillating function. During use, the airflow range of the tower fan is no longer limited to a fixed direction, but can oscillate and deliver air within a certain angle range.

[0056] In addition, the tower fan in this embodiment is also equipped with a control system, which includes a circuit board, a screen, and buttons. The drive motor 51 and the oscillation mechanism are electrically connected to the circuit board via wires and are controlled by the buttons and the circuit board. The screen can display the current operating status of the tower fan or display fault problems.

[0057] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0059] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tower fan for easy cleaning, characterised in that, include: Base assembly; A housing assembly rotatably connected to the base assembly, the housing assembly including a front housing and a rear housing, the surface of the rear housing having a removable air intake grille; A wind-generating mechanism is disposed inside the housing assembly. The wind-generating mechanism includes: a drive motor installed inside the housing assembly and a wind turbine connected to the drive motor; the wind turbine has a coaxially arranged rotating shaft and a bushing at opposite ends, the rotating shaft is movably inserted into the housing, and the bushing is fixedly sleeved on the output shaft of the drive motor. The bushing has a first threaded hole on its side wall, and a first bolt is threaded into the first threaded hole. The first bolt can abut against the output shaft of the drive motor. The output shaft of the drive motor has an annular groove on its outer periphery, and a retaining spring is engaged in the annular groove. The retaining spring is located below the bushing. The front housing is provided with a support base, and a rubber sleeve with an insertion hole is installed on the support base. A bearing is provided in the insertion hole of the rubber sleeve. The rotating shaft is movably inserted into the insertion hole, and the bearing is sleeved on the outer circumference of the rotating shaft.

2. The easy-to-clean tower fan of claim 1, wherein, The front housing is provided with a mounting base, and the drive motor is fixedly mounted on the mounting base.

3. The easy-to-clean tower fan of claim 1, wherein, The bottom of the air intake grille is provided with several plug-in plates, and the rear housing is provided with plug-in grooves that form a sliding plug-in engagement with the plug-in plates. The air intake grille is fixed to the rear housing by a second bolt.

4. The easy-to-clean tower fan of claim 3, wherein, The surface of the air intake grille has a through hole, and the rear housing has a corresponding second threaded hole. The through hole and the second threaded hole are detachably fixedly connected by the second bolt.

5. The easy-to-clean tower fan of claim 1, wherein, Multiple buckles are provided on both sides of the air intake grille, and multiple slots are provided on the rear housing accordingly. The buckles can be engaged in the corresponding slots.

6. The easy-to-clean tower fan of claim 1, wherein, The rear housing is provided with several positioning plates, and the air intake grille is provided with corresponding positioning ribs, which can fit into the positioning plates.

7. The easy-to-clean tower fan of claim 1, wherein, The base assembly includes a support body and a swaying mechanism disposed on the support body, the swaying mechanism being used to drive the rotation of the outer shell.

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