Automatic telescopic rod structure for fan

Abstract

The utility model relates to an automatic telescopic rod structure for a fan. The automatic telescopic rod structure comprises a stepping motor, a rotating screw rod, an inner telescopic rod, an outer telescopic rod and a nut. Wherein the inner telescopic rod is telescopically arranged in the outer telescopic rod, and the nut is fixedly arranged on the inner telescopic rod; the first end of the rotating screw rod is connected with the stepping motor, and the second end of the rotating screw rod is rotationally connected with the nut on the inner telescopic rod; the stepping motor is used for driving the rotating screw rod to rotate; compared with the prior art, according to the technical scheme, the rotating screw rod is driven to rotate through the stepping motor, so that the inner telescopic rod is driven to telescopically move in the outer telescopic rod based on the nut, and automatic adjustment of the height of the fan is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fan equipment, and in particular to an automatic telescopic rod structure for a fan. BACKGROUND

[0002] At present, there are various types of electric fans on the market, but the height of most fans is fixed and cannot adapt to different use scenarios.

[0003] In order to realize the height adjustment of the fan, various methods have been adopted in the prior art. One method is to adjust the height by disassembling and connecting several rods, which can realize height adjustment, but the operation is complex and not convenient. Another method is to use a structure in which a metal single-head spring plate cooperates with a positioning hole of an outer pipe to realize positioning. However, all single-head spring plates need to be pressed to make the pipe drop when it is retracted, which is a relatively cumbersome adjustment method and the user experience is not good. CONTENT OF THE UTILITY MODEL

[0004] The present application provides an automatic telescopic rod structure for a fan, which realizes automatic adjustment of the height of the fan.

[0005] In a first aspect, the present application provides an automatic telescopic rod structure for a fan, comprising: a stepper motor, a rotating screw rod, an inner telescopic rod, an outer telescopic rod and a nut; wherein the inner telescopic rod is telescopically arranged inside the outer telescopic rod, and the nut is fixedly arranged on the inner telescopic rod; the first end of the rotating screw rod is connected with the stepper motor, and the second end of the rotating screw rod is rotationally connected with the nut on the inner telescopic rod; the stepper motor is used to drive the rotating screw rod to rotate.

[0006] In a possible implementation, a first limiting groove is arranged on the inner telescopic rod to limit the left and right rotation of the inner telescopic rod, and a second limiting groove is arranged on the outer telescopic rod to limit the left and right rotation of the outer telescopic rod, wherein the second limiting groove falls into the second limiting groove.

[0007] In a possible implementation, the two ends of the outer telescopic rod are respectively provided with a first opening and a second opening; wherein the first opening is used for the inner telescopic rod to enter the inside of the outer telescopic rod from the first opening; and the second opening is used for the rotating screw rod to enter the inside of the outer telescopic rod from the second opening.

[0008] The automatic telescopic rod structure for a fan provided by the present application further comprises a bearing and a bearing bracket; the first end of the rotating screw rod is equipped with the bearing, the bearing bracket is provided with a bearing groove, and the bearing is fixedly placed in the bearing groove.

[0009] The automatic telescopic rod structure for the fan further includes a screw.

[0010] In a possible implementation, the bearing support is provided with a screw hole, the second opening of the outer telescopic rod is provided with a bearing support groove, and the bearing support groove is provided with a screw groove; the bearing support is placed in the bearing support groove; and the screw is fixed in the screw groove through the screw hole.

[0011] In a possible implementation, the first end of the rotating screw is provided with a rotating screw groove, the bearing center is provided with a bearing hole, and the rotating screw groove is located in the bearing hole; and the shaft of the stepping motor is embedded in the rotating screw groove.

[0012] The automatic telescopic rod structure for the fan further includes a snap ring, which is used for limiting and fixing the bearing and the bearing support.

[0013] The automatic telescopic rod structure for the fan further includes a gasket, which is placed in the inner telescopic rod and fixed on the second end tail of the rotating screw entering the inner telescopic rod through the nut.

[0014] The automatic telescopic rod structure for the fan further includes a gasket fixing screw, the second end tail of the rotating screw is provided with a gasket fixing screw groove, and the gasket fixing screw is fixed in the gasket fixing screw groove through the gasket.

[0015] Compared with the prior art, the technical scheme provided in the embodiments of the present application has the following advantages:

[0016] The automatic telescopic rod structure for the fan includes a stepping motor, a rotating screw, an inner telescopic rod, an outer telescopic rod and a nut; the inner telescopic rod is telescopically arranged in the outer telescopic rod, and the nut is fixed on the inner telescopic rod; the first end of the rotating screw is connected with the stepping motor, and the second end of the rotating screw is rotationally connected with the nut on the inner telescopic rod; and the stepping motor is used to drive the rotating screw to rotate. Compared with the prior art, in the technical scheme of the present application, the inner telescopic rod is telescopically arranged in the outer telescopic rod, the nut is fixed on the inner telescopic rod and rotationally connected with the rotating screw, and the rotating screw is driven to rotate by the stepping motor, so that the nut is driven to rotate up and down on the rotating screw, and the inner telescopic rod is driven to telescopically move up and down in the outer telescopic rod, thereby realizing automatic adjustment of the height of the fan. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the accompanying drawings required to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without any creative effort.

[0019] One or more embodiments are illustrated by the drawings in the accompanying drawings, which do not constitute a limitation on the embodiments, and elements with the same reference numerals in the drawings represent similar elements, unless otherwise specified. The drawings in the accompanying drawings do not constitute a proportional limitation.

[0020] Figure 1 A structural schematic diagram of an automatic telescopic rod structure for a fan is provided for the embodiments of the present application.

[0021] Figure 2a A structural schematic diagram of a limiting groove is provided for the embodiments of the present application.

[0022] Figure 2b Another structural schematic diagram of a limiting groove is provided for the embodiments of the present application.

[0023] Figure 3 An exploded view of an automatic telescopic rod structure for a fan is provided for the embodiments of the present application.

[0024] Figure 4 Another structural schematic diagram of an automatic telescopic rod structure for a fan is provided for the embodiments of the present application.

[0025] Figure 5 Still another structural schematic diagram of an automatic telescopic rod structure for a fan is provided for the embodiments of the present application. DETAILED DESCRIPTION

[0026] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without any creative effort fall within the scope of protection of the present application.

[0027] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For purposes of simplicity of the present disclosure, the following description will refer to specific examples. It is important to note, however, that the present application can be practiced in a variety of arrangements beyond the specific examples described. Specifically, although the present application is described in terms of a number of embodiments, it should be appreciated that the present application can comprise a variety of arrangements, modifications, and additions of the specific examples described, and / or substitutions of one or more of the elements and / or steps in the examples for other elements and / or steps disclosed herein. For example, a single component of a specific example can be divided into several components, or several components can be combined into a single component. Further, in some embodiments, the present application can be implemented only in parts of the specific examples described, and other embodiments can be implemented using a combination of the specific examples described, other technologies, and / or other future technologies.

[0028] For purposes of the description hereinafter, the terms "upper", "lower", "right", "left", "rear", "front", "vertical", "horizontal", and derivatives thereof shall relate to the application as oriented in the drawing. The terms "antecedent" and "consequent" shall refer to the elements to which they are respectively attached as oriented in the drawing. Where a term is provided in the singular tense, the inventors also contemplate aspects of the present application provided in the plural tense unless such a construction is inoperable.

[0029] Figure 1 A structural schematic diagram of an automatic telescopic rod structure for a fan is provided for an embodiment of the present application; as shown in the figure, the automatic telescopic rod structure for the fan comprises a step motor 1, a rotating screw rod 2, an inner telescopic rod 3, an outer telescopic rod 4, and a nut 5, and the specific implementation is as follows: Figure 1

[0030] The inner telescopic rod 3 is telescopically arranged inside the outer telescopic rod 4, and the nut 5 is fixedly arranged on the inner telescopic rod 3.

[0031] The first end of the rotating screw rod 2 is connected with the step motor 1, and the second end of the rotating screw rod 2 is rotationally connected with the nut 5 on the inner telescopic rod 3.

[0032] The step motor 1 is used to drive the rotating screw rod 2 to rotate.

[0033] In an embodiment, the outer telescopic rod 4 is respectively provided with a first opening and a second opening at both ends.

[0034] Specifically, the first opening is used for the inner telescopic rod 3 to enter the inside of the outer telescopic rod 4 from the first opening.​

[0035] Specifically, the second opening is used for the rotating screw rod 2 to enter the inside of the outer telescopic rod 4 from the second opening.

[0036] Specifically, the first opening is located below the second opening.

[0037] In an embodiment, the inner telescopic rod 3 is provided with a first limiting groove 31 for limiting the left and right rotation of the inner telescopic rod 3, and the outer telescopic rod 4 is provided with a second limiting groove 41 for limiting the left and right rotation of the outer telescopic rod 4. Figure 2a As shown in Figure 2a A structural schematic diagram of the limiting groove provided in the embodiment of the application; Figure 2b As shown in Figure 2b Another structural schematic diagram of the limiting groove provided in the embodiment of the application.

[0038] Specifically, the first limiting groove 31 is arranged on the outside of the inner telescopic rod 3, and the recess direction of the first limiting groove 31 is inwardly recessed; the second limiting groove 41 is arranged on the outside of the outer telescopic rod 4, and the recess direction of the second limiting groove 41 is inwardly recessed.

[0039] Specifically, when the inner telescopic rod 3 is telescopically arranged in the inside of the outer telescopic rod 4, the second limiting groove 41 of the outer telescopic rod 4 is embedded in the second limiting groove 41 of the inner telescopic rod 3, and the two are matched with each other to limit the left and right movement between the inner telescopic rod 3 and the outer telescopic rod 4.

[0040] Specifically, the groove width of the first limiting groove 31 is greater than the groove width of the second limiting groove 41, so that the first limiting groove 31 can be better embedded in the second limiting groove 41.

[0041] Specifically, the length of the first limiting groove 31 is the same as the length of the inner telescopic rod 3, and the length of the second limiting groove 41 is the same as the length of the outer telescopic rod 4.

[0042] Preferably, the number of the first limiting groove 31 arranged on the inner telescopic rod 3 is two, and the number of the second limiting groove 41 arranged on the outer telescopic rod 4 is two.

[0043] In an embodiment, the first end of the inner telescopic rod 3 is provided with the nut 5, and the nut hole in the center of the nut 5 constitutes a third opening on the first end of the inner telescopic rod 3, and the third opening is used for the rotating screw rod 2 to enter the inner telescopic rod 3 through the third opening.

[0044] Specifically, the outer circumferential surface of the rotating screw rod 2 is an external thread structure, the inner circumferential surface of the nut 5 is an internal thread structure, the external thread structure and the internal thread structure are rotationally connected, and the rotating screw rod 2 and the nut 5 are rotationally connected.

[0045] Specifically, when the rotating screw rod 2 is rotationally connected with the nut 5, the nut 5 moves up and down in the rotating screw rod 2 based on the rotating direction of the rotating screw rod 2.

[0046] In an embodiment, the automatic telescopic rod structure for a fan provided by the application further includes a bearing 6 and a bearing support 7.

[0047] Specifically, the first end of the rotating screw rod 2 is equipped with the bearing 6, the bearing support 7 is provided with a bearing groove 71, and the bearing 6 is fixedly placed in the bearing groove 71.

[0048] Specifically, the outer circumferential surface of the first end of the rotating screw rod 2 is nested with a fixed cylindrical sleeve 21, and the bearing 6 and the bearing 6 are installed on the outer circumferential surface of the fixed cylindrical sleeve 21.

[0049] In an embodiment, the first end of the rotating screw rod 2 is provided with a rotating screw rod groove 22, the center of the bearing 6 is provided with a bearing hole, and the rotating screw rod groove 22 is located in the bearing hole.

[0050] Specifically, the rotating screw rod groove 22 is located at the top of the fixed cylindrical sleeve 21 of the rotating screw rod 2.

[0051] In an embodiment, the bottom of the stepping motor 1 is provided with a shaft 11, and the shaft 11 is used to be embedded in the rotating screw rod groove 22.

[0052] Specifically, when the stepping motor 1 is in a working state, the shaft 11 drives the rotating screw rod 2 to rotate left and right.

[0053] In an embodiment, the automatic telescopic rod structure for a fan provided by the application further includes a clasp ring 8.

[0054] Specifically, the clasp ring 8 is used to limit and fix the bearing 6 and the bearing support 7.

[0055] Specifically, the clasp ring 8 is placed in the bearing groove 71, and the clasp ring 8 is located above the bearing 6 in the bearing groove 71.

[0056] In an embodiment, the automatic telescopic rod structure for a fan provided by the application further includes a screw 9.

[0057] Specifically, the screw 9 is M4 screw; preferably, the number of the screw is 4.

[0058] Specifically, the screw 9 is used for fixing the bearing bracket 7.

[0059] In an embodiment, the bearing bracket 7 is provided with a screw hole, the second opening of the outer telescopic rod 4 is provided with a bearing bracket sink 42, and the bearing bracket sink 42 is provided with a screw groove.

[0060] In an embodiment, the bearing bracket 7 is placed in the bearing bracket sink 42.

[0061] Specifically, the sink opening diameter of the bearing bracket sink 42 is less than the maximum bearing bracket 7 diameter of the bearing bracket 7, so that when the bearing bracket 7 is placed in the bearing bracket sink 42, the bearing bracket 7 will not exceed the bearing bracket sink 42 and will be completely sunk into the inner part of the outer telescopic rod 4.

[0062] Specifically, since the bearing bracket 7 is fixed at the first end of the rotating screw 2, when the bearing bracket 7 is placed in the bearing bracket sink 42, the second end of the rotating screw 2 is first passed through the second opening until the bearing bracket 7 at the first end of the rotating screw 2 is placed in the bearing bracket sink 42.

[0063] Specifically, when the bearing bracket 7 is placed in the bearing bracket sink 42, the screw hole on the bearing bracket 7 corresponds to and matches the screw groove on the outer telescopic rod 4.

[0064] Specifically, the screw 9 is fixed in the screw groove through the screw hole, so as to fix the bearing bracket 7 on the outer telescopic rod 4, and based on the fixing relationship between the bearing bracket 7 and the outer telescopic rod 4, the bearing 6, the stepping motor 1 and the snap ring 8 connected with the bearing bracket 7 are also directly or indirectly fixed on the outer telescopic rod 4.

[0065] In an embodiment, the automatic telescopic rod structure for the fan provided by the present application further comprises a gasket 10.

[0066] Specifically, the gasket 10 is placed in the inner telescopic rod 3, and the gasket 10 is fixed on the second end tail of the rotating screw 2 passing through the nut 5 into the inner telescopic rod 3.

[0067] Specifically, the gasket diameter of the gasket 10 is greater than the rotating screw diameter of the rotating screw 2 and greater than the nut diameter of the nut 5.

[0068] In an embodiment, the automatic telescopic rod structure for a fan provided by the application further comprises a gasket fixing screw 91.

[0069] Specifically, the second end of the rotating screw rod 2 is provided with a gasket fixing screw 91 groove, and the gasket fixing screw 91 passes through the gasket 10 and is fixed in the gasket fixing screw 91 groove.

[0070] Specifically, the gasket fixing screw 91 is an M4 screw.

[0071] As shown in Figure 3 , Figure 3 is an exploded view of the automatic telescopic rod structure for a fan provided by the embodiment of the application; as shown in Figure 4 , Figure 4 is another structural schematic view of the automatic telescopic rod structure for a fan provided by the embodiment of the application; as shown in Figure 5 , Figure 5 is still another structural schematic view of the automatic telescopic rod structure for a fan provided by the embodiment of the application.

[0072] The automatic telescopic rod structure for a fan provided by the application is described by way of example: when the step motor 1 starts to work after receiving a control signal, since the shaft 11 of the step motor 1 is inserted into the rotating screw rod groove 22 at the first end of the rotating screw rod 2, when the step motor 1 rotates, the rotating screw rod 2 also rotates, and since the upper end of the inner telescopic rod 3 is equipped with a nut 5 and the second end of the rotating screw rod 2 is rotationally connected to the nut 5 based on the matching threads, when the rotating screw rod 2 rotates, the nut 5 moves up and down along the threads of the screw rod, and based on the connection relationship between the nut 5 and the inner telescopic rod 3, therefore, when the nut 5 moves along the rotating screw rod 2, the inner telescopic rod 3 moves accordingly; the inner telescopic rod 3 is arranged inside the outer telescopic rod 4 and is limited to rotate left and right by the first limiting groove 31 and the second limiting groove 41; this structure ensures that the inner telescopic rod 3 can only move along the axial direction of the outer telescopic rod 4 and cannot rotate, so that when the nut 5 moves along the rotating screw rod 2, the inner telescopic rod 3 moves up and down inside the outer telescopic rod 4; at the same time, since the first end of the rotating screw rod 2 is equipped with a bearing 6 fixed on a bearing support 7 and is limited and fixed by a snap ring 8, this ensures that the rotating screw rod 2 can remain stable when rotating and cannot deviate in the axial or radial direction; finally, by controlling the rotating direction and speed of the step motor 1, the telescopic length of the inner telescopic rod 3 can be accurately controlled, so as to realize automatic adjustment of the height of the fan.

[0073] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0074] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0075] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0076] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be connected, or detachable, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0077] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include the direct contact between the first and second features, or the contact between the first and second features through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0078] In the description of the application, reference to "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that a particular feature, structure, material, or characteristic being described is included in at least one embodiment or example of the application. The appearances of the above expressions in various places in the description are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Moreover, the terms "first", "second", "third", etc. are used herein merely as identifiers that identify a particular order or pattern, rather than to denote a physical, logical, and / or chronological order or pattern. Furthermore, the terms "comprise", "comprising", "include", "including", and the like, specify the presence of stated features, structures, materials, and / or characteristics, but do not preclude the presence or addition of one or more other features, structures, materials, and / or characteristics.

[0079] Obviously, various modifications and changes can be made to the present application by those skilled in the art without departing from the spirit and scope of the application. Accordingly, such modifications and changes are intended to fall within the scope of the application as defined by the appended claims and their equivalents.

[0080] The above descriptions are specific embodiments of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An automatic telescopic pole structure for a fan, characterized by, The utility model relates to a telescopic rod device, including: A stepping motor, a rotating screw rod, an inner telescopic rod, an outer telescopic rod and a nut; The inner telescopic rod is telescopically arranged in the outer telescopic rod, and the nut is fixedly arranged on the inner telescopic rod; The first end of the rotating screw rod is connected with the stepping motor, and the second end of the rotating screw rod is rotationally connected with the nut on the inner telescopic rod. The stepping motor is used to drive the rotating screw rod to rotate.

2. The automatic telescopic pole structure for a fan according to claim 1, characterized by, The inner telescopic rod is provided with a first limiting groove for limiting the left and right rotation of the inner telescopic rod, and the outer telescopic rod is provided with a second limiting groove for limiting the left and right rotation of the outer telescopic rod, wherein the second limiting groove falls into the second limiting groove.

3. The automatic telescopic pole structure for a fan according to claim 1, wherein The outer telescopic rod is provided with a first opening and a second opening at both ends respectively. The first opening is used for the inner telescopic rod to enter the inside of the outer telescopic rod from the first opening. The second opening is used for the rotating screw rod to enter the inside of the outer telescopic rod from the second opening.

4. The automatic telescopic pole structure for a fan according to claim 3, characterized by, The utility model further includes a bearing and a bearing support; The first end of the rotating screw rod is equipped with the bearing, the bearing support is provided with a bearing groove, and the bearing is fixedly placed in the bearing groove.

5. The automatic telescopic pole structure for a fan according to claim 4, characterized by, The utility model further includes a screw; The screw is used to fix the bearing support.

6. The automatic telescopic pole structure for a fan according to claim 5, wherein The bearing support is provided with a screw hole, the second opening of the outer telescopic rod is provided with a bearing support sunken groove, and the bearing support sunken groove is provided with a screw groove; The bearing support is placed in the bearing support sunken groove. The screw is fixed in the screw groove through the screw hole.

7. The automatic telescopic pole structure for a fan according to claim 4, wherein The first end of the rotating screw rod is provided with a rotating screw rod groove, the center of the bearing is provided with a bearing hole, and the rotating screw rod groove is located in the bearing hole; The shaft of the stepping motor is embedded in the rotating screw rod groove.

8. The automatic telescopic pole structure for a fan according to claim 4, wherein The utility model further includes a snap ring; The snap ring is used to limit and fix the bearing and the bearing support.

9. The automatic telescopic pole structure for a fan according to claim 1, wherein The utility model further includes a gasket; The gasket is placed in the inner telescopic rod, and the gasket is fixed on the second end tail of the rotating screw rod which penetrates the nut and enters the inner telescopic rod.

10. The automatic telescopic pole structure for a fan according to claim 9, characterized by, The utility model further includes a gasket fixing screw; The second end tail of the rotating screw rod is provided with a gasket fixing screw sunken groove, and the gasket fixing screw is fixed in the gasket fixing screw sunken groove through the gasket.

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