Height-adjustable fan

Abstract

The utility model discloses a height-adjustable fan which comprises a fan body, a base plate and a supporting rod. A mounting hole is formed in the base plate, a plurality of positioning blocks are arranged on the side wall of the mounting hole in a protruding mode, and the multiple positioning blocks are arranged in the circumferential direction of the mounting hole at intervals; one end of the supporting rod is detachably connected with the fan body, the other end of the supporting rod is inserted into the mounting hole, the supporting rod is provided with a plurality of positioning grooves, the positioning grooves are formed in the circumferential direction of the supporting rod at intervals, the positioning blocks can be clamped into the positioning grooves, and the positioning blocks correspond to the positioning grooves one to one; a first bolt is arranged on the bottom wall of the mounting hole in a penetrating mode, and the first bolt is in threaded connection with the supporting rod. The height adjusting range of the fan can be expanded, the connecting stability of the supporting rod can be improved, and the use experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a height-adjustable fan. Background Art

[0002] Fans are common household appliances. Existing fans mainly adjust the height of the fan by adjusting the length of the support rod. However, the length adjustment range of the support rod is small, and the fan can only be arranged in a single position such as the ground or a desktop, which makes it inconvenient to adjust the position of the fan. Moreover, the support rod is mainly fixed to the fan by bolts, resulting in low connection stability of the support rod and the fan is prone to shaking, affecting the user experience. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the utility model provides a height-adjustable fan, which can expand the height adjustment range of the fan and improve the connection stability of the support rod.

[0004] According to a first aspect of an embodiment of the utility model, a height-adjustable fan is provided, comprising a fan body, a chassis and a support rod; the chassis is provided with a mounting hole, and a plurality of positioning blocks are protruding from the side wall of the mounting hole, and the plurality of positioning blocks are arranged at intervals along the circumference of the mounting hole; one end of the support rod is detachably connected to the fan body, and the other end of the support rod is inserted into the mounting hole, and the support rod is provided with a plurality of positioning grooves, and the plurality of positioning grooves are arranged at intervals along the circumference of the support rod, the positioning blocks can be inserted into the positioning grooves, and the positioning blocks correspond to the positioning grooves one by one; wherein a first bolt is passed through the bottom wall of the mounting hole, and the first bolt is threadedly connected to the support rod.

[0005] The height-adjustable fan of the embodiment of the utility model has at least the following beneficial effects: a mounting hole is provided on the chassis, one end of the support rod is detachably connected to the fan body, the other end of the support rod is inserted into the mounting hole, a first bolt passes through the bottom wall of the mounting hole, and the first bolt is threadedly connected to the support rod, so that the support rod can connect the fan body and the chassis together, by setting the fan body and the support rod to be detachably connected, and the chassis and the support rod are connected by the first bolt, the support rod can be easily replaced, so that the height of the fan body can be adjusted by support rods of different lengths, and the height adjustment range is expanded. In addition, a plurality of positioning blocks are arranged at intervals along the circumference of the mounting hole, and a plurality of positioning grooves are arranged at intervals along the circumference of the support rod. By setting the positioning blocks to be inserted into the positioning grooves, the contact area between the chassis and the support rod is increased, and the connection stability of the support rod is improved, so that the shaking of the fan body can be reduced and the user experience is improved.

[0006] According to some embodiments of the present invention, a plurality of the positioning blocks are arranged at intervals along the axial direction of the mounting hole.

[0007] According to some embodiments of the present invention, the positioning block and the positioning groove match in shape.

[0008] According to some embodiments of the present invention, the positioning block and the positioning groove are both hemispherical in shape.

[0009] According to some embodiments of the utility model, the first bolt sleeve is provided with a gasket, and a mounting groove is formed on a side of the chassis away from the support rod, and the gasket is arranged in the mounting groove.

[0010] According to some embodiments of the utility model, a plurality of convex strips are arranged around one side of the gasket facing the chassis, a plurality of grooves are opened on the bottom wall of the mounting groove, the convex strips are passed through the grooves, and the convex strips correspond to the grooves one by one.

[0011] According to some embodiments of the utility model, a slot is provided at the end of the fan body close to the support rod, the support rod is inserted into the slot, and the side wall of the slot is threadedly connected with a second bolt, which can abut the side wall of the support rod.

[0012] According to some embodiments of the utility model, the side wall of the support rod is recessed to form a plurality of limiting grooves, the plurality of limiting grooves are arranged around the support rod, and the second bolt can be inserted into the limiting grooves.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0015] Figure 1 is a schematic diagram of a height-adjustable fan according to an embodiment of the utility model;

[0016] Figure 2 It is a schematic diagram of the connection between the chassis and the support rod of the height-adjustable fan of an embodiment of the utility model;

[0017] Figure 3 It is a schematic diagram of the connection between the fan body and the support rod of the height-adjustable fan of an embodiment of the utility model;

[0018] Figure 4 is a schematic diagram of a support rod of a height-adjustable fan according to an embodiment of the utility model;

[0019] Figure 5 It is a schematic diagram of a gasket of a height-adjustable fan according to an embodiment of the utility model.

[0020] Description of reference numerals:

[0021] The fan body 100, the slot 110, the second bolt 120, and the second handle 121;

[0022] Chassis 200, mounting hole 210, positioning block 211, mounting slot 220, groove 221;

[0023] Support rod 300, positioning groove 310, limiting groove 320;

[0024] The first bolt 400 , the washer 410 , the convex strip 411 , and the first handle 420 . DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 a limitation on the present invention.

[0027] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0029] It is understandable that, referring to Figure 1 , Figure 2 and Figure 4The height-adjustable fan of the utility model comprises a fan body 100, a chassis 200 and a support rod 300; the chassis 200 is provided with a mounting hole 210, and a plurality of positioning blocks 211 are protruding from the side wall of the mounting hole 210, and the plurality of positioning blocks 211 are arranged at intervals along the circumference of the mounting hole 210; one end of the support rod 300 is detachably connected to the fan body 100, and the other end of the support rod 300 is inserted into the mounting hole 210, and the support rod 300 is provided with a plurality of positioning grooves 310, and the plurality of positioning grooves 310 are arranged at intervals along the circumference of the support rod 300, and the positioning blocks 211 can be inserted into the positioning grooves 310, and the positioning blocks 211 correspond to the positioning grooves 310 one by one; wherein, a first bolt 400 is penetrated through the bottom wall of the mounting hole 210, and the first bolt 400 is threadedly connected to the support rod 300.

[0030] The chassis 200 is provided with a mounting hole 210, one end of the support rod 300 is detachably connected to the fan body 100, and the other end of the support rod 300 is inserted into the mounting hole 210, and the first bolt 400 passes through the bottom wall of the mounting hole 210, and the first bolt 400 is threadedly connected to the support rod 300, so that the support rod 300 can connect the fan body 100 and the chassis 200 together. By arranging that the fan body 100 and the support rod 300 are detachably connected, and the chassis 200 and the support rod 300 are connected by the first bolt 400, the support rod 300 can be easily replaced, so that the height of the fan body 100 can be adjusted by using support rods 300 of different lengths, thereby expanding the height adjustment range. In addition, multiple positioning blocks 211 are arranged at intervals along the circumference of the mounting hole 210, and multiple positioning grooves 310 are arranged at intervals along the circumference of the support rod 300. The positioning blocks 211 are inserted into the positioning grooves 310 to increase the contact area between the chassis 200 and the support rod 300 and improve the connection stability of the support rod 300, thereby reducing the shaking of the fan body 100 and improving the user experience.

[0031] It should be noted that the fan body 100 and the chassis 200 are connected by a support rod 300. By setting one end of the support rod 300 to be detachably connected to the fan body 100 and the other end to be inserted into the mounting hole 210, the installation and disassembly of the support rod 300 can be facilitated, so that the distance between the fan body 100 and the chassis 200 can be adjusted by replacing the support rod 300 with different lengths, thereby increasing the adjustment range of the height of the fan body 100, and then being able to be conveniently arranged on the ground or on a desktop, thereby expanding the scope of use and improving the convenience of use.

[0032] In addition, multiple positioning blocks 211 are arranged at circumferential intervals along the mounting hole 210, and multiple positioning grooves 310 are arranged at circumferential intervals along the support rod 300. By setting the positioning blocks 211 in the mounting grooves 220, the contact area between the chassis 200 and the support rod 300 can be increased, and the support rod 300 can be fixed on the chassis 200 through the cooperation of the positioning blocks 211 and the positioning grooves 310, thereby reducing the position shaking of the support rod 300, improving the connection stability between the chassis 200 and the support rod 300, and improving the reliability of the height-adjustable fan.

[0033] It is understandable that, referring to Figure 2 and Figure 4 , a plurality of positioning blocks 211 are arranged at intervals along the axial direction of the mounting hole 210. By setting the positioning blocks 211 to be arranged at intervals along the axial direction of the mounting hole 210, the positioning blocks 211 can be evenly distributed on the support rod 300, which can facilitate the support rod 300 to be inserted into the mounting hole 210, reduce the concentration of stress, so that the force on the support rod 300 is more uniform, improve the structural stability of the chassis 200 and the support rod 300, reduce the possibility of failure of the chassis 200 and the support rod 300, improve reliability, delay the wear of the support rod 300, extend the service life, and improve reliability.

[0034] It should be noted that when the support rod 300 is inserted into the mounting hole 210, the plurality of positioning blocks 211 can abut against the side wall of the mounting hole 210 and expand the mounting hole 210, and then the positioning blocks 211 are inserted into the positioning grooves 310, and finally the mounting hole 210 is reset, so that the support rod 300 can be stably mounted on the chassis 200. By arranging the plurality of positioning blocks 211 along the circumference of the mounting hole 210, and the plurality of positioning blocks 211 along the axial direction of the mounting hole 210, so that the plurality of positioning blocks 211 are spirally arranged on the side wall of the support rod 300, when the positioning blocks 211 expand the mounting hole 210, the deformation of the mounting hole 210 can be evenly distributed, so as to avoid stress concentration on the same cross section of the mounting hole 210, reduce the possibility of the chassis 200 being cracked, and improve reliability.

[0035] It is understandable that, referring to Figure 2 , the shapes of the positioning block 211 and the positioning groove 310 match. By setting the shapes of the positioning block 211 and the positioning groove 310 to match, the positioning block 211 can be closely attached to the side wall of the positioning groove 310, thereby increasing the contact area between the chassis 200 and the support rod 300, improving the connection stability between the chassis 200 and the support rod 300, and enabling the support rod 300 to be positioned in the mounting hole 210, reducing the position shaking of the support rod 300, and improving the connection accuracy.

[0036] Specifically, refer to Figure 1 and Figure 2The positioning block 211 and the positioning groove 310 are both hemispherical in shape. By setting the positioning block 211 and the positioning groove 310 to be hemispherical in shape, the contact area between the positioning block 211 and the positioning groove 310 can be increased, so that the positioning block 211 can be stably positioned in the positioning groove 310, and the positional shaking of the positioning block 211 in the positioning groove 310 is reduced, so that the support rod 300 can be stabilized in the mounting hole 210, so that the fan body 100 can stably supply air, and the user experience of the height-adjustable fan is improved.

[0037] It should be noted that by setting the shape of the positioning block 211 to be hemispherical, when the support rod 300 is inserted into the mounting hole 210, the positioning block 211 can abut against the side wall of the mounting hole 210, and can reduce the contact area between the positioning block 211 and the side wall of the mounting hole 210, thereby reducing the resistance of the support rod 300 to be inserted into the mounting hole 210, allowing the positioning block 211 to slide smoothly into the mounting hole 210, thereby improving the convenience of connection between the chassis 200 and the support rod 300.

[0038] It is understandable that the shapes of the positioning block 211 and the positioning groove 310 may also be prism-shaped, elliptical, etc., as long as the positioning block 211 can be stably positioned in the positioning groove 310, which will not be elaborated here.

[0039] It is understandable that, referring to Figure 2 , the first bolt 400 is sleeved with a gasket 410, and a mounting groove 220 is provided on the side of the chassis 200 away from the support rod 300, and the gasket 410 is arranged in the mounting groove 220. The gasket 410 is sleeved in the first bolt 400, and the mounting groove 220 is arranged on the side of the chassis 200 away from the support rod 300. By screwing the first bolt 400 into the support rod 300, so that the gasket 410 can be located in the mounting groove 220, the contact area between the first bolt 400 and the chassis 200 can be increased by providing the gasket 410, so that the position of the first bolt 400 can be stabilized, the possibility of the first bolt 400 being loosened is reduced, and the connection stability between the chassis 200 and the support rod 300 is improved.

[0040] The gasket 410 is located in the installation groove 220 . By arranging the gasket 410 in the installation groove 220 , the position shaking of the gasket 410 is reduced, and the position of the gasket 410 can be stabilized, thereby improving the connection stability of the support rod 300 .

[0041] Specifically, refer to Figure 2 and Figure 5A plurality of convex strips 411 are arranged around the side of the gasket 410 facing the chassis 200, and a plurality of grooves 221 are provided on the bottom wall of the mounting groove 220. The convex strips 411 are inserted into the grooves 221, and the convex strips 411 correspond to the grooves 221 one by one. The plurality of convex strips 411 are arranged around the gasket 410, and the plurality of grooves 221 are arranged on the bottom wall of the mounting groove 220, and are arranged at intervals along the circumference of the mounting groove 220. By providing the convex strips 411 inserted into the grooves 221, the gasket 410 can be positioned in the mounting groove 220 to prevent the gasket 410 from rotating, thereby stabilizing the position of the first bolt 400 and reducing the possibility of the first bolt 400 being loosened.

[0042] It should be noted that the gasket 410 is pressed against the bottom wall of the mounting groove 220 by the first bolt 400, and the protrusion 411 is passed through the groove 221, so that the position of the gasket 410 can be positioned, the position shaking of the gasket 410 can be reduced, and the connection stability between the chassis 200 and the support rod 300 can be improved.

[0043] Specifically, refer to Figure 2 The first bolt 400 is connected to the first handle portion 420. By providing the first handle portion 420, it is convenient for the user to grasp, so that the first bolt 400 can be easily screwed into the support rod 300 without tightening it with a screwdriver, thereby improving the convenience of disassembly and assembly.

[0044] It is understandable that, referring to Figure 1 and Figure 3 The fan body 100 is provided with a slot 110 at the end near the support rod 300. The support rod 300 is inserted into the slot 110. The side wall of the slot 110 is threadedly connected with a second bolt 120. The second bolt 120 can abut against the side wall of the support rod 300. The support rod 300 is inserted into the slot 110. The second bolt 120 penetrates the side wall of the slot 110. The second bolt 120 is threadedly connected to the slot 110. The second bolt 120 is driven to rotate so that the second bolt 120 can move along the radial direction of the slot 110, so that the second bolt 120 can abut against the side wall of the support rod 300. Therefore, the support rod 300 can be quickly connected to the fan body 100 through the second bolt 120, thereby improving the convenience of disassembly and assembly of the support rod 300.

[0045] Specifically, refer to Figure 3 The second bolt 120 is connected to a second handle portion 121. The second handle portion 121 is provided to facilitate the user to grasp and apply force without the need for tightening with a screwdriver, thereby improving the convenience of disassembly and assembly.

[0046] Specifically, refer to Figure 3 and Figure 4The side wall of the support rod 300 is recessed to form a plurality of limiting grooves 320, and the plurality of limiting grooves 320 are arranged around the support rod 300, and the second bolt 120 can be inserted into the limiting grooves 320. The plurality of limiting grooves 320 are arranged around the support rod 300, and the second bolt 120 is inserted into the limiting grooves 320, so that the support rod 300 can be positioned in the slot 110, thereby preventing the position of the support rod 300 from shaking, and improving the connection stability of the support rod 300.

[0047] In addition, by setting up multiple limiting grooves 320 around the support rod 300, the second bolt 120 can be easily connected to the limiting groove 320, reducing the rotation range of the support rod 300, facilitating the second bolt 120 to pass through the limiting groove 320, and improving the convenience of connection.

[0048] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Height adjustable fan, characterized in that, include: Fan body; A chassis, wherein the chassis is provided with a mounting hole, a plurality of positioning blocks are protruding from the side wall of the mounting hole, and the plurality of positioning blocks are arranged at intervals along the circumference of the mounting hole; A support rod, one end of which is detachably connected to the fan body, the other end of which is inserted into the mounting hole, the support rod being provided with a plurality of positioning grooves, the plurality of positioning grooves being arranged at intervals along the circumference of the support rod, the positioning block being able to be inserted into the positioning groove, and the positioning block and the positioning groove being in one-to-one correspondence; Wherein, a first bolt is passed through the bottom wall of the mounting hole, and the first bolt is threadedly connected to the support rod.

2. The height-adjustable fan according to claim 1, characterized in that: The plurality of positioning blocks are arranged at intervals along the axial direction of the mounting hole.

3. The height-adjustable fan according to claim 1, characterized in that: The shapes of the positioning block and the positioning groove match each other.

4. The height-adjustable fan according to claim 3, characterized in that: The positioning block and the positioning groove are both hemispherical in shape.

5. The height-adjustable fan according to claim 1, characterized in that: The first bolt sleeve is provided with a gasket, and a mounting groove is provided on a side of the chassis away from the support rod, and the gasket is arranged in the mounting groove.

6. The height-adjustable fan according to claim 5, characterized in that: A plurality of convex strips are arranged around one side of the gasket facing the chassis, a plurality of grooves are opened on the bottom wall of the mounting groove, the convex strips are passed through the grooves, and the convex strips correspond to the grooves one by one.

7. The height-adjustable fan according to claim 1, characterized in that: The fan body is provided with a slot at the end portion close to the support rod, the support rod is inserted into the slot, a second bolt is threadedly connected to the side wall of the slot, and the second bolt can abut against the side wall of the support rod.

8. The height-adjustable fan according to claim 7, characterized in that: The side wall of the support rod is recessed to form a plurality of limiting grooves, and the plurality of limiting grooves are arranged around the support rod, and the second bolt can be inserted into the limiting grooves.

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