Telescopic cantilever multi-angle positioning electric fan supporting structure

Abstract

The utility model discloses a telescopic cantilever multi-angle positioning fan supporting structure, which relates to the technical field of fans and comprises a fan body, a base, a plurality of supporting legs uniformly arranged at the bottom of the base, a negative pressure fixing component and an angle adjusting component. An inner cavity is formed in the base, a piston plate is arranged in the inner cavity in a sliding fit mode, a screw is rotationally arranged in the center of the inner cavity, the piston plate is in threaded connection with the screw, and the top of the screw penetrates through the base and is fixedly provided with a rotating plate; an air suction groove is formed in each supporting leg, and the top of each air suction groove communicates with an inner cavity of the base; the fan body is connected to the outer side of the base through the hinge support. The rotating plate is rotated to drive the piston plate to move upwards in the inner cavity of the base, and a closed negative pressure cavity is formed in the inner cavity and the air suction grooves of the supporting legs. And by combining the sealing ring gaskets embedded in the conical tables at the bottoms of the supporting legs, strong adsorption force is generated on the smooth vertical surfaces, so that the base is firmly fixed on the vertical surfaces of glass, ceramic tiles and the like. The design thoroughly avoids dependence on a desktop.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, specifically to a telescopic cantilever multi-angle positioning electric fan support structure. Background Technology

[0002] As an indispensable appliance in daily life, fans are widely used in homes, offices and other places to provide people with a cool and comfortable environment.

[0003] However, existing fan technologies, especially desktop fans, have significant limitations in their support structures: most desktop fans use a fixed base that is placed directly on the desktop. When desktop space is limited, the fan base and its support structure significantly encroach on valuable desktop operating area, affecting the user's ability to place other items or perform work and study, resulting in a poor user experience. To address this, we propose a telescopic cantilever multi-angle positioning fan support structure. Utility Model Content

[0004] The purpose of this utility model is to provide a telescopic cantilever multi-angle positioning fan support structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a telescopic cantilever multi-angle positioning fan support structure, including a fan body and a base, further including: multiple support feet evenly distributed at the bottom of the base; a negative pressure fixing component: the base has an inner cavity, a piston plate is slidably fitted in the inner cavity, a screw is rotatably provided at the center of the inner cavity, the piston plate is threadedly connected to the screw, and the top of the screw passes through the base and is fixedly provided with a rotating plate; each support foot has an air intake groove, the top of the air intake groove is connected to the inner cavity of the base; an angle adjustment component: the fan body is connected to the outside of the base through a hinge bracket.

[0006] Preferably, the top of the base is provided with a recess, the rotating plate is rotatably disposed in the recess, and the top of the rotating plate is flush with the top of the base.

[0007] Preferably, the support feet are located near the edge of the base.

[0008] Preferably, the support foot has a conical platform on the outer side of its bottom, and an annular groove is opened at the bottom of the conical platform. A sealing ring gasket is embedded in the annular groove. The piston plate is driven to move upward by rotating the rotating plate, forming a negative pressure adsorption force in the inner cavity and the air intake groove.

[0009] Preferably, the bottom of the support foot is detachably connected to a fixing cover, which completely covers the conical platform and the sealing ring gasket.

[0010] Preferably, an axial positioning rod is fixedly provided inside the air intake groove, and a sliding plate is slidably sleeved on the outside of the positioning rod; the outside of the sliding plate is sealed to the inner wall of the air intake groove.

[0011] Preferably, a compression spring is fitted on the outside of the positioning rod, and the two ends of the compression spring are fixedly connected to the bottom of the base and the top of the slide plate, respectively.

[0012] Preferably, the slide plate isolates the inner cavity from the outside passage through a sealing fit, preventing dust from entering the inner cavity through the air intake groove.

[0013] Compared with traditional technologies, the beneficial effects of this utility model are:

[0014] This device utilizes a negative pressure adsorption mechanism within its support legs. A rotating plate drives a piston upward to form a sealed negative pressure chamber. Combined with a sealing ring pad at the bottom of the conical platform, this allows the entire base to firmly adhere to smooth vertical surfaces such as glass and ceramic tiles. This design not only eliminates the need for a tabletop but also allows the fan to be hung on windows, mirrors, or cabinet facades, providing a portable cooling solution for tabletop-less environments such as kitchens, bathrooms, and balconies, thus overturning the spatial boundaries of traditional fans.

[0015] With the help of the hinged bracket on the side wall of the base and the multi-axis rotation of the fan body, users can adjust the horizontal rotation angle and the tilt angle at will, breaking through the limitation of the traditional desktop fan's single direction. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the base structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the cavity of this utility model;

[0019] Figure 4 This is a cross-sectional view of the support foot part of this utility model.

[0020] In the diagram: 1-Fan body; 2-Base; 3-Support foot; 4-Inner cavity; 5-Piston plate; 6-Screw; 7-Rotating plate; 8-Intake groove; 9-Hinged bracket; 10-Sink; 11-Conical platform; 12-Sealing ring gasket; 13-Fixing cover; 14-Positioning rod; 15-Slide plate; 16-Compression spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0022] Please see Figures 1-4The diagram illustrates a telescopic cantilever multi-angle positioning fan support structure, including a fan body 1 and a base 2, further comprising: multiple support feet 3 evenly distributed at the bottom of the base 2; a negative pressure fixing assembly: the base 2 has an inner cavity 4, within which a piston plate 5 is slidably fitted, and a screw 6 is rotatably mounted at the center of the inner cavity 4; the piston plate 5 is threadedly connected to the screw 6, and the top of the screw 6 passes through the base 2 and is fixedly fitted with a rotating plate 7; each support foot 3 has an air intake groove 8, the top of which communicates with the inner cavity 4 of the base 2; when the piston plate 5 moves upward, the inner cavity 4 communicates with the air intake groove 8. Air is simultaneously extracted from the air groove 8, establishing a pressure difference transmission channel for the adsorption function. This makes the support foot 3 not only a load-bearing component but also the execution terminal of the vacuum adsorption system, providing a physical basis for subsequent adsorption and fixation. Angle adjustment component: The fan body 1 is connected to the outside of the base 2 via a hinge bracket 9, allowing users to freely move the fan to rotate horizontally 360° and adjust the pitch angle. This completely solves the problem of traditional desktop fans taking up space due to the fixed base 2 and having a single air delivery angle, allowing the fan to be suspended to cover a larger area without affecting the placement of items on the desktop.

[0023] The following describes some embodiments of this application in detail with reference to the accompanying drawings:

[0024] Please see Figures 1-4 Through the negative pressure adsorption mechanism inside the support foot 3, the rotating plate 7 drives the piston to move upward to form a sealed negative pressure chamber. Combined with the sealing ring pad 12 at the bottom of the conical platform 11, the entire base 2 is firmly adsorbed onto smooth vertical surfaces such as glass and tiles. This design not only eliminates the dependence on the tabletop, but also allows the fan to be hung on windows, mirrors, or cabinet facades, providing a portable cooling solution for tabletop-less environments such as kitchens, bathrooms, and balconies, overturning the spatial boundaries of traditional fans.

[0025] The base 2 has a recessed groove 10 on top, and the rotating plate 7 is rotatably placed in the recessed groove 10. The top of the rotating plate 7 is flush with the top of the base 2. This design not only avoids accidental collisions or misoperations caused by the protrusion of the rotating plate 7, but also keeps the upper surface of the base 2 completely flat, which is convenient for the stability of the fan body 1 when it is stored later.

[0026] Furthermore, the support foot 3 is located close to the edge of the base 2, increasing the support area of ​​the support foot 3 on the base 2, thereby improving the stability of the device.

[0027] It is worth noting that the bottom outer side of the support foot 3 is provided with a conical platform 11, and the bottom of the conical platform 11 has an annular groove, in which a sealing ring gasket 12 is embedded. By rotating the rotating plate 7 to drive the piston plate 5 to move upward, a negative pressure adsorption force is formed in the inner cavity 4 and the air suction groove 8. The conical platform 11 expands the adsorption contact area, and the sealing ring gasket 12 is made of flexible material, which can adapt to the slight unevenness of smooth surfaces such as glass and ceramic tiles under the action of negative pressure. When the rotating plate 7 drives the piston to move upward, the inner cavity 4 and the air suction groove 8 form a closed negative pressure system, which firmly adsorbs the entire base 2 onto the vertical plane by atmospheric pressure, realizing bracketless suspension and breaking through the limitations of desktop space.

[0028] The working principle of this device is as follows:

[0029] When the device needs to be fixed to a vertical smooth surface (such as a glass window): remove the fixing cover 13 at the bottom of the support foot 3 to expose the conical platform 11 and the sealing ring gasket 12; rotate the rotating plate 7 at the top of the base 2 clockwise to drive the screw 6 to rotate, driving the piston plate 5 to move upward in the inner cavity 4, increasing the volume of the inner cavity 4 and forming a negative pressure; the negative pressure in the inner cavity 4 is transmitted to the suction groove 8 of the support foot 3, and the external atmospheric pressure overcomes the elastic force of the compression spring 16, pushing the slide plate 15 to slide upward along the positioning rod 14, transmitting the negative pressure to the adsorption surface; during this process, the sealing ring gasket 12 adheres to the glass surface to form a sealed space, the negative pressure continues to increase, and the atmospheric pressure presses the conical platform 11 tightly against the glass, realizing the firm suspension of the base 2;

[0030] Manually move the fan body 1, and through the hinge bracket 9 on the side wall of the base 2, achieve the following: horizontal adjustment: rotate freely 360° with the bracket axis as the center; pitch adjustment: change the fan's tilt angle to deliver airflow in a directional manner.

[0031] In this technical solution, the distribution range of the fan body 1 can be adjusted by placing the hinge bracket 9 on the telescopic rod of the base 2 (not shown in the attached figure) and then using the telescopic rod. Example

[0032] This embodiment is an optimization of the structure in Embodiment 1. Specifically, the bottom of the support foot 3 is detachably connected to the fixing cover 13. The fixing cover 13 completely covers the conical platform 11 and the sealing ring gasket 12. When not in use, the fixing cover 13 isolates the sealing ring gasket 12 from external pollutants (such as dust and water stains). Before use, removing the fixing cover 13 exposes the adsorption interface. After operation, re-covering it can prevent the sealing ring gasket 12 from wearing and aging during transportation or storage, and significantly extend the life of the core adsorption component. Example

[0033] This embodiment is an optimization of the structure in Embodiment 1. Specifically, an axial positioning rod 14 is fixedly installed inside the suction groove 8, and a sliding plate 15 is slidably sleeved on the outside of the positioning rod 14. The outer side of the sliding plate 15 is sealed to the inner wall of the suction groove 8, limiting the vertical movement trajectory of the sliding plate 15. The outer side of the sliding plate 15 is precisely sealed to the inner wall of the suction groove 8. When the adsorption function is not activated, the sliding plate 15 is pressed tightly against the bottom of the suction groove 8 under the action of gravity and external air pressure, completely blocking the communication channel between the outside air and the inner cavity 4, preventing dust from entering the inner cavity 4 through the bottom of the support foot 3 and contaminating the screw 6 transmission system. The sliding plate 15 isolates the inner cavity 4 from the outside channel through the sealing fit, preventing dust from entering the inner cavity 4 through the suction groove 8. When sliding upward, it ensures that the negative pressure adsorption airflow is unobstructed, and when sliding downward, it completely seals the channel. This design prevents external dust from entering the inner cavity 4 through the suction groove 8 and prevents lubricating oil vapor in the inner cavity 4 from seeping back and contaminating the adsorption interface, ensuring the long-term reliable operation of the negative pressure system.

[0034] Furthermore, a compression spring 16 is sleeved on the outside of the positioning rod 14. The two ends of the compression spring 16 are fixedly connected to the bottom of the base 2 and the top of the slide plate 15, respectively. When the piston plate 5 moves upward to generate negative pressure, the external atmospheric pressure overcomes the elastic force of the compression spring 16 and pushes the slide plate 15 upward. Thus, during the adsorption process, the dynamic sliding of the slide plate 15 is used to prevent dust on the adsorption surface from being sucked into the inner cavity 4.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0036] 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 telescopic cantilever multi-angle positioning electric fan support structure comprising a fan body (1) and a base (2), characterized in that, Also includes: Multiple support feet (3) are evenly distributed at the bottom of the base (2); Negative pressure fixing assembly: The base (2) has an inner cavity (4), a piston plate (5) is slidably fitted in the inner cavity (4), a screw (6) is rotatably provided at the center of the inner cavity (4), the piston plate (5) is threadedly connected to the screw (6), the top of the screw (6) passes through the base (2) and is fixedly provided with a rotating plate (7); each of the support feet (3) has an air suction groove (8), the top of the air suction groove (8) is connected to the inner cavity (4) of the base (2); Angle adjustment assembly: The fan body (1) is connected to the outside of the base (2) via a hinge bracket (9).

2. A telescopic cantilever multi-angle positioning electric fan support structure according to claim 1, characterized in that: The base (2) has a sink groove (10) on top, and the rotating plate (7) is rotatably disposed in the sink groove (10), with the top of the rotating plate (7) flush with the top of the base (2).

3. A telescopic cantilever multi-angle positioning electric fan support structure according to claim 1, characterized in that: The support foot (3) is close to the edge of the base (2).

4. A telescopic cantilever multi-angle positioning electric fan support structure according to claim 3, characterized in that: The support foot (3) has a conical platform (11) on the outer side of its bottom. The bottom of the conical platform (11) has an annular groove, and a sealing ring gasket (12) is embedded in the annular groove. The piston plate (5) is driven to move upward by rotating the rotating plate (7), and a negative pressure adsorption force is formed in the inner cavity (4) and the air suction groove (8).

5. A telescopic cantilever multi-angle positioning electric fan support structure according to claim 4, characterized in that: The bottom of the support foot (3) is detachably connected to a fixing cover (13), which completely covers the conical platform (11) and the sealing ring gasket (12).

6. A telescopic cantilever multi-angle positioning electric fan support structure according to claim 3, characterized in that: An axial positioning rod (14) is fixedly provided inside the air intake groove (8), and a sliding plate (15) is slidably sleeved on the outside of the positioning rod (14); the outside of the sliding plate (15) is sealed to the inner wall of the air intake groove (8).

7. A telescopic cantilever multi-angle positioning electric fan support structure according to claim 6, characterized in that: A compression spring (16) is sleeved on the outside of the positioning rod (14), and the two ends of the compression spring (16) are respectively fixedly connected to the bottom of the base (2) and the top of the slide plate (15).

8. A telescopic cantilever multi-angle positioning electric fan support structure according to claim 6, characterized in that: The slide plate (15) isolates the inner cavity (4) from the outside through a sealing fit, preventing dust from entering the inner cavity (4) through the air intake groove (8).

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