Tower fan with lifting air outlet

Abstract

The present invention discloses a tower fan with a lifting air outlet, comprising a base and an air outlet connected to the upper end of the base; a driving mechanism is arranged inside the base for passing the generated airflow into the air outlet; the air outlet comprises a retractable hollow tube; the hollow tube comprises a plurality of tube bodies connected in sequence, and each of the tube bodies is slidably connected to the inside of the next adjacent tube body in the vertical direction, so that the hollow tube forms a retractable structure; the side wall of each tube body is provided with a strip air outlet in the vertical direction, and the strip air outlets of all the tube bodies are located on the same vertical straight line, and the airflow is discharged from the hollow tube through the strip air outlet. The present invention increases the telescopic function of the air outlet, reduces the occupied transportation space, and at the same time reduces the consumption of packaging materials, thereby reducing the packaging and transportation costs.

Description

Technical Field

[0001] The invention relates to the technical field of bladeless fans, and in particular to a tower fan with a lifting air outlet. Background Art

[0002] The principle of the bladeless electric fan is to use the technology of jet engines and automobile turbochargers. Air is sucked in through the air intake holes below, and an impeller hidden inside the shell sprays the air out, eventually forming an uninterrupted flow of cold air.

[0003] Existing bladeless fans have various shapes and different air outlet structures, such as annular air outlet bladeless fans, annular air outlet water-cooled bladeless fans, vertical strip air outlet bladeless fans (also called tower fans), etc. Figure 1 The structure of the existing tower fan. No matter which bladeless fan is used, the power part for generating airflow is located at the lower part of the shell, and the upper part of the shell is the air outlet structure.

[0004] Although the tower fan has many advantages, there are still areas that need to be improved. For example, the air outlet structure is part of the shell, and the air outlet structure cannot be extended and occupies a large space. For mass production, it requires a lot of packaging materials. On the other hand, it occupies a lot of transportation space during transportation, resulting in the inability to reduce transportation costs. Summary of the invention

[0005] In view of the defects in the prior art, the telescopic function of the air outlet is increased, the occupied transportation space is reduced, and the consumption of packaging materials and packaging costs are reduced. The present invention provides a tower fan with a lifting air outlet, comprising a base and an air outlet connected to the upper end of the base; a driving mechanism is provided in the base for passing the generated airflow into the air outlet;

[0006] The air outlet head includes a retractable hollow tube; the hollow tube includes a plurality of tube bodies connected in sequence, and each of the tube bodies is slidably connected to the inside of the next adjacent tube body in the vertical direction, thereby forming a retractable structure of the hollow tube; the side wall of each tube body is provided with a strip air outlet in the vertical direction, and the strip air outlets of all the tube bodies are located on the same vertical straight line, and the air flow is discharged from the hollow tube through the strip air outlet.

[0007] The beneficial effects of the present invention are embodied in:

[0008] The air outlet adopts the structure of hollow tube, and more importantly, it adopts the tube body to form a telescopic connection. When not in use or in transportation, each tube body of the hollow tube is retracted, that is, the entire air outlet is retracted into the shell, which greatly reduces the occupied space compared with the existing bladeless fans. After the entire volume is reduced, on the one hand, it can greatly save packaging costs, and on the other hand, it can greatly reduce the occupied transportation space, which can reduce packaging materials, reduce production costs, and reduce transportation costs.

[0009] Preferably, the tube body at the bottom is slidably connected to the inside of the base.

[0010] The base is provided with an installation cavity with an upper opening, and after the upper and middle tubes are retracted into the bottom tube, the bottom tube is retracted into the installation cavity. Compared with the existing columnar air outlet, the hollow tube has a more compact structure and can be freely extended and retracted, with strong flexibility.

[0011] Preferably, the upper end of the tube body located at the top is sealed.

[0012] Preferably, a sealing member is provided between every two adjacent tube bodies and between the tube body at the bottom and the base.

[0013] An air inlet is provided at the lower end of the entire hollow tube, which is connected to the air outlet duct of the base, and the strip air outlets of all tube bodies serve as the only air exhaust outlets. The remaining parts of each tube body are sealed, and the tube bodies are also connected by sliding seals through seals, ensuring that all airflows generated by the driving mechanism are discharged from the strip air outlets.

[0014] Preferably, a limiting protrusion is provided at the lower end of each tube body to limit the maximum extension length of the tube body.

[0015] Except for the tube body at the top, the upper ends of the other tube bodies are provided with fixed parts corresponding to the limiting protrusions. When the tube body is extended to the longest, the limiting protrusion contacts the fixed parts, thereby preventing the tube body from sliding out completely.

[0016] Preferably, it further comprises a chassis, and the base is rotatably mounted on the chassis.

[0017] The base can be rotated on the chassis to adjust the air outlet direction. A wind swing driver rotatably connected to the chassis is also provided in the base to realize the function of automatic wind swing.

[0018] Preferably, two hollow tubes are provided and the two hollow tubes are connected in parallel to the upper end of the base.

[0019] Preferably, the upper ends of the two hollow tubes are fixedly connected by a connecting plate.

[0020] The air outlet of the device can also be provided with double hollow tubes, and the two hollow tubes are respectively connected to the air outlet pipe of the base, which is beneficial to improve the wind force and the wind sweeping area. The upper ends of the two hollow tubes are fixedly connected, which facilitates the synchronous lifting of the two hollow tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0022] Figure 1 It is a structural schematic diagram of an existing tower fan;

[0023] Figure 2 It is a structural schematic diagram of this embodiment;

[0024] Figure 3 for Figure 2 Schematic diagram of the middle exposure head during retraction;

[0025] Figure 4 for Figure 2 Schematic diagram of the center shower head fully retracted into the mounting cavity;

[0026] Figure 5 This is a schematic diagram of the connection structure of two adjacent tube bodies in this embodiment;

[0027] Figure 6 This is a schematic diagram of the structure in which two hollow tubes are arranged on the base in this embodiment.

[0028] In the accompanying drawings, there are a base 1, a strip air outlet 2, a chassis 3, a hollow tube 4, a tube body 5, a limiting protrusion 6, a fixing portion 7, an installation cavity 8, a sealing member 9, and a connecting plate 10. DETAILED DESCRIPTION

[0029] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0030] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0031] like Figure 2As shown, this embodiment provides a tower fan with a lifting air outlet, including a base 1 and an air outlet connected to the upper end of the base 1, wherein a driving mechanism is provided in the base 1 for passing the generated airflow into the air outlet. The driving mechanism includes a motor, an impeller and an air outlet pipe, wherein the motor drives the impeller to rotate, and the base 1 is provided with an air inlet mesh, and the impeller drives the airflow to enter from the air inlet mesh and be discharged into the air outlet through the air outlet pipe. In addition, the device also includes a chassis 3, and the base 1 is rotatably mounted on the chassis 3. The base 1 can rotate on the chassis 3 to adjust the air outlet direction, and a wind swing driver rotatably connected to the chassis 3 is also provided in the base 1 for realizing the function of automatic wind swing.

[0032] Figure 3 As shown, the air outlet in the device includes a retractable hollow tube 4. The specific shape of the hollow tube 4 is not limited in this embodiment, and can be a hollow cylinder, a hollow multi-prism, etc. The hollow tube 4 includes a plurality of tube bodies 5 connected in sequence, and each of the tube bodies 5 is slidably connected to the inside of the next adjacent tube body 5 in the vertical direction, so that the hollow tube 4 forms a retractable structure. The specific connection structure between the plurality of tube bodies 5 is as follows:

[0033] Figure 5 As shown, this embodiment takes a hollow cylindrical tube body 5 as an example. The upper end of the tube body 5 located at the top is sealed, and both ends of the other tube bodies 5 are through. From top to bottom, the diameter of the tube body 5 increases successively. The lower end of each tube body 5 is inserted into the next tube body 5, and the lower end of each of the tube bodies 5 is provided with a limiting protrusion 6, and the limiting protrusion 6 here is a limiting ring. Except for the tube body 5 located at the top, the upper ends of the other tube bodies 5 are provided with a fixing portion 7 corresponding to the limiting protrusion 6, and the fixing portion 7 here is a fixing ring, which is located at the upper end opening of the tube body 5. When the tube body 5 is extended to the longest, the limiting protrusion 6 contacts the fixing portion 7, thereby preventing the tube body 5 from sliding out completely, thereby limiting the maximum length of the tube body 5 extended.

[0034] Figure 4As shown, in addition, the tube body 5 at the bottom is slidably connected to the inside of the base 1. The base 1 is provided with a mounting cavity 8 with an upper opening. After the upper and middle tube bodies 5 are retracted into the tube body 5 at the bottom, the tube body 5 at the bottom is retracted into the mounting cavity 8. Compared with the existing columnar air outlet, the structure of the hollow tube 4 is more compact, and it can be freely extended and retracted, and has strong flexibility. A sealing member 9 is provided between each two adjacent tube bodies 5 and between the tube body 5 at the bottom and the base 1. The sealing member 9 here is a sealing ring. The sealing ring of each tube body 5 is sleeved on the outer surface of the limiting protrusion 6 of the tube body 5, and the sealing ring is slidably connected to the inner side wall of the next tube body 5, so that the two adjacent tube bodies 5 form a sliding sealing connection. Similarly, the sealing ring at the lower end of the tube body 5 at the bottom is slidably connected to the side wall of the mounting cavity 8, and also forms a sealing connection. An air inlet is provided at the lower end of the entire hollow tube 4, and the air inlet is connected to the air outlet duct of the base 1, and the strip air outlet 2 of all tube bodies 5 serves as the only air exhaust outlet. The remaining parts of each tube body 5 are sealed, and the tube bodies 5 are also connected to each other by a sliding seal 9, ensuring that all airflows generated by the driving mechanism are discharged from the strip air outlet 2.

[0035] Similar to the existing tower fan, the air outlet of this device is also provided with a strip air outlet 2, and the specific configuration of the strip air outlet 2 is as follows:

[0036] The side wall of each tube body 5 is provided with a strip air outlet 2 along the vertical direction, and the strip air outlets 2 of all tube bodies 5 are located on the same vertical straight line, and the air flow is discharged from the hollow tube 4 through the strip air outlet 2. Compared with the existing tower fan, this device has obvious advantages. When not in use or in transportation, each tube body 5 of the hollow tube 4 is retracted, that is, the entire air outlet head is retracted into the shell, which greatly reduces the occupied space compared with the existing bladeless fan. After the entire volume is reduced, on the one hand, the packaging cost can be greatly saved, and on the other hand, the transportation space occupied can be greatly reduced, which can reduce packaging materials, reduce production costs, and reduce transportation costs.

[0037] like Figure 6 As shown, in addition, in this embodiment, two hollow tubes 4 can be provided and the two hollow tubes 4 are connected in parallel to the upper end of the base 1. The two hollow tubes 4 are respectively connected to the air outlet pipe of the base 1, which is conducive to improving the wind force and the swept area. The upper ends of the two hollow tubes 4 are fixedly connected by a connecting plate 10, which facilitates the synchronous lifting of the two hollow tubes 4.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A tower fan with a lifting air outlet, comprising a base and a driving mechanism installed in the base; characterized in that: It also includes an air outlet head connected to the upper end of the base; the driving mechanism is used to flow the generated air flow into the air outlet head; The air outlet head comprises a retractable hollow tube; the hollow tube comprises a plurality of tube bodies connected in sequence, and each of the tube bodies is slidably connected to the inside of the next adjacent tube body in the vertical direction, so that the hollow tube forms a retractable structure; the side wall of each tube body is provided with a strip air outlet in the vertical direction, and the strip air outlets of all the tube bodies are located on the same vertical straight line, and the air flow is discharged from the hollow tube through the strip air outlet; The tube body at the bottom is slidably connected to the inside of the base; The upper end of the tube body located at the top is sealed.

2. A tower fan with a lifting air outlet according to claim 1, characterized in that: A sealing element is arranged between each two adjacent tube bodies and between the tube body at the bottom and the base.

3. A tower fan with a lifting air outlet according to claim 1, characterized in that: A limiting protrusion is provided at the lower end of each tube body to limit the maximum extension length of the tube body.

4. A tower fan with a lifting air outlet according to any one of claims 1 to 3, characterized in that: It also includes a chassis, and the base is rotatably mounted on the chassis.

5. A tower fan with a lifting air outlet according to claim 4, characterized in that: The hollow tubes are provided with two and the two hollow tubes are connected in parallel to the upper end of the base.

6. A tower fan with a lifting air outlet according to claim 5, characterized in that: The upper ends of the two hollow tubes are fixedly connected via a connecting plate.

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