Lifting device and fan

Abstract

This application relates to a lifting device and a fan. The lifting device includes an inner tube, a lifting tube, a locking member, and a control component. The lifting tube is axially movable and sleeved outside the inner tube. The locking member is fitted inside the lifting tube and can move up and down relative to the inner tube along with the lifting tube. The control component is rotatably fitted to one end of the locking member and, when rotated to a first position, causes the locking member to abut and lock against the inner tube; or when rotated to a second position, causes the locking member to separate from the inner tube. The lifting device provided by this application has a simple structure and is easy to operate. It can be used flexibly according to the user's actual needs, which helps to improve the user experience.

Description

Technical Field

[0001] This application relates to the field of fan technology, and in particular to a lifting device and a fan. Background Technology

[0002] Existing fans can be height-adjusted according to user needs. Among them, fans with manual height adjustment mostly use locking nuts as the lifting device. The locking force depends on the tightness of the locking nut, which is not very stable when locked, and the structure is complicated and difficult to operate. Summary of the Invention

[0003] Therefore, it is necessary to provide a lifting device and a fan to address the issue of how to simplify the structure of the lifting device for ease of operation.

[0004] A lifting device, comprising:

[0005] Inner tube;

[0006] The lifting pipe is flexibly and vertically fitted onto the outside of the inner pipe along its own axial direction;

[0007] A locking element, fitted inside the lifting tube and capable of moving up and down relative to the inner tube along with the lifting tube; and

[0008] A control component is rotatably coupled to one end of the locking member, and when rotated to a first position, it causes the locking member to abut and lock against the inner tube, or when rotated to a second position, it causes the locking member to separate from the inner tube at a distance.

[0009] In one embodiment, the locking member is configured to form a locking space for fitting the inner tube, and the locking member is configured to have elastic deformation capability. The control component adjusts the size of the locking space during controlled rotation switching between the first position and the second position so that the locking member abuts and locks against the inner tube or separates from it.

[0010] In one embodiment, the locking member has a locking portion and a lug portion. The locking portion is constructed to form the locking space along the circumference of the inner tube. The two ends of the locking portion are spaced apart from each other and are respectively provided with the lug portion.

[0011] The control component includes a control member and an elastic member. The control member is rotatably connected to the two lugs. The elastic member is deformably fitted between the control member and at least one lug, and is used to deform and act on the corresponding lug during the controlled rotation of the control member to switch between the first position and the second position, so as to adjust the size of the locking space.

[0012] In one embodiment, the mating surface between the elastic element and the control element is an inclined surface fit, and the mating surfaces corresponding to the elastic element and the control element are a first inclined surface and a second inclined surface, respectively, and the first inclined surface can rotate relative to the second inclined surface;

[0013] Both the first inclined surface and the second inclined surface have a lifting end and a settling end. When the control component is in the first position, the lifting end of the first inclined surface is connected to the settling end of the second inclined surface. When the control component is in the second position, the lifting end of the first inclined surface is connected to the lifting end of the second inclined surface, and the lifting end of the second inclined surface is compressed and deformed.

[0014] In one embodiment, the elastic element and the lug are in a concave-convex fit.

[0015] In one embodiment, a sliding member is further included, which is sleeved on the inner tube at intervals from the locking member and is movably disposed inside the lifting tube. The sliding member has sliding portions protruding at intervals along the circumference of the inner tube.

[0016] The inner wall of the lifting tube has a protruding mating part extending along its own axis, and the mating parts are spaced apart circumferentially along the lifting tube. A sliding groove is defined between each two adjacent mating parts, and the sliding part is slidably disposed in the corresponding sliding groove.

[0017] In one embodiment, a transition member is further included, which is connected between the lifting tube and the locking member and is used to drive the locking member to move up and down synchronously when the lifting tube moves up and down relative to the inner tube.

[0018] In one embodiment, a steering assembly is further included, the steering assembly including a steering tube, the steering tube and the lifting tube being movably sleeved at both ends of the inner tube, the inner tube being able to controllably drive the lifting tube to rotate synchronously relative to the steering tube around its own axis.

[0019] In one embodiment, the steering assembly further includes a limiting member that is coupled to one end of the inner tube that extends into the steering tube;

[0020] A limiting part protrudes from the inner wall of the steering tube, and the top of the limiting part abuts against the bottom of the limiting member to restrict the raising and lowering of the inner tube along its own axis.

[0021] In one embodiment, the steering assembly further includes a blocking member, which is coupled to the steering tube and movably sleeved outside the inner tube. The inner tube is circumferentially rotatable relative to the blocking member about its own axis and can move up and down along its own axis. The bottom of the blocking member and the top of the limiting member form an abutting fit to restrict the movement of the limiting member along its own axis.

[0022] A fan includes a fan head, a base, and a lifting device as described in the foregoing embodiments, wherein the lifting device is connected between the fan head and the base.

[0023] The aforementioned lifting device and fan include an inner tube, a lifting tube, a locking component, and a control assembly. The lifting tube is axially movable and sleeved outside the inner tube; the locking component is fitted inside the lifting tube and can move up and down relative to the inner tube along with the lifting tube; the control assembly is rotatably fitted to one end of the locking component and, when controlled to rotate to a first position, causes the locking component to abut and lock against the inner tube, or when rotated to a second position, causes the locking component to separate from the inner tube. In this application, when the user needs to adjust the length of the lifting device, the control assembly must first be controlled to rotate to the second position to separate the locking component from the inner tube, and then the lifting tube is controlled to move the locking component up and down relative to the inner tube, adjusting the length of the lifting device according to actual needs; after the user adjusts the length of the lifting device to meet actual needs, the control assembly must be controlled to rotate to the first position to abut and lock against the inner tube, and the lifting tube and inner tube are fixed, thereby maintaining the length of the lifting device to meet the customer's usage requirements. Thus, the lifting device provided in this application has a simple structure and is easy to operate, and can be used flexibly according to the actual needs of users, which is conducive to improving the user experience. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the lifting device in this application.

[0025] Figure 2 This is a partial cross-sectional structural diagram of the lifting device in this application.

[0026] Figure 3 This is a partial cross-sectional structural diagram of the lifting device in this application.

[0027] Figure 4 This is a partial cross-sectional structural diagram of the lifting device in this application.

[0028] Figure 5 This is a schematic diagram of the riser pipe in this application.

[0029] Figure 6 This is a schematic diagram of the locking component in this application.

[0030] Figure 7This is a schematic diagram of the structure of the control component in this application.

[0031] Figure 8 This is a schematic diagram of the elastic element in this application.

[0032] Figure 9 This is a schematic diagram of the steering pipe in this application.

[0033] Figure 10 This is a schematic diagram of the sliding component in this application.

[0034] Figure 11 This is a schematic diagram of the transition component in this application.

[0035] Figure Labels

[0036] Lifting device 100;

[0037] Rising tube 10; mating part 101; slide groove 102; engaging part 103;

[0038] Locking element 11; Locking part 111; Locking space 112; Lug 113; Mounting groove 114;

[0039] Control component 12; control element 121; elastic element 122; first inclined surface 123; second inclined surface 124; lifting end 125; settling end 126; mounting part 127;

[0040] Steering assembly 13; steering tube 131; limiting part 1311; limiting member 132; blocking member 133;

[0041] Sliding component 14; Sliding part 141;

[0042] Transition component 15; transition part 151; flange 152; transition hole 153; snap-fit ​​part 154;

[0043] Inner tube 16; anti-slip component 17. Detailed Implementation

[0044] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0045] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0046] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0047] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0048] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0049] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0050] One embodiment of this application provides a fan, which includes a fan head, a base, and a lifting device 100. The lifting device 100 is connected between the fan head and the base.

[0051] Under normal circumstances, the fan head and base are spaced apart along the direction of gravity. The lifting device 100 is connected between the fan head and base along the direction of gravity, and the lifting device 100 can adjust its length along the direction of gravity, thereby adjusting the distance between the fan head and base along the direction of gravity and the overall height of the fan. In this way, users can adjust the length of the lifting device 100 according to their actual needs to adjust the air outlet height of the fan head, providing flexibility in use.

[0052] Please see Figures 1 to 4 The lifting device 100 includes an inner tube 16, a lifting tube 10, a locking component 11, and a control component 12.

[0053] The lifting tube 10 is vertically and flexibly fitted around the inner tube 16 along its own axial direction. It is understood that the lifting tube 10 and the inner tube 16 extend in the same direction, and when the lifting device 100 is applied to a fan, the extension directions of the lifting tube 10 and the inner tube 16 correspond to the direction of gravity; that is, the axial directions of both the lifting tube 10 and the inner tube 16 correspond to the direction of gravity. Thus, the user can control the lifting tube 10 to rise and fall relative to the inner tube 16 according to actual needs, thereby adjusting the length of the lifting device 100 along the direction of gravity.

[0054] The locking element 11 is fitted inside the lifting tube 10 and can move up and down relative to the inner tube 16 along with the lifting tube 10. The control component 12 is rotatably fitted to one end of the locking element 11 and is controlled to rotate to the first position to cause the locking element 11 to abut and lock against the inner tube 16, or rotate to the second position to cause the locking element 11 to separate from the inner tube 16 at intervals.

[0055] Understandably, when the control component 12 is rotated to the first position, the locking member 11 abuts and locks against the inner tube 16, so the locking member 11 and the inner tube 16 cannot move relative to each other, and the lifting tube 10 is fixed to the inner tube 16, so the lifting tube 10 cannot rise or fall relative to the inner tube 16; when the control component 12 is rotated to the second position, the locking member 11 and the inner tube 16 are separated, so the locking member 11 and the inner tube 16 can move relative to each other, and the lifting tube 10 can drive the locking member 11 to rise or fall relative to the inner tube 16.

[0056] In this application, when the user needs to adjust the length of the lifting device 100, the component 12 is first rotated to the second position to separate the locking member 11 from the inner tube 16. Then, the lifting tube 10 is controlled to move the locking member 11 up and down relative to the inner tube 16, and the length of the lifting device 100 is adjusted according to actual needs. After the user adjusts the length of the lifting device 100 to meet the actual needs, the component 12 is rotated to the first position to lock the locking member 11 against the inner tube 16, and the lifting tube 10 is fixed to the inner tube 16, thus maintaining the length of the lifting device 100 to meet the customer's usage requirements. Therefore, the lifting device 100 provided in this application has a simple structure and is easy to operate, allowing for flexible use according to the user's actual needs, which helps improve the user experience.

[0057] It should be noted that the application field or equipment of the lifting device 100 is not limited to fans. The lifting device 100 can also be used in other application fields or equipment and connected to other structures.

[0058] In some embodiments, please refer to Figure 3 The lifting device 100 also includes an anti-slip component 17, which is deformably clamped between the locking component 11 and the inner tube 16. The anti-slip component 17 is connected to the locking component 11 and can move up and down relative to the inner tube 16 along with the locking component 11. The surface structure of the anti-slip component 17 in contact with the inner tube 16 forms an anti-slip surface.

[0059] Understandably, when the control component 12 is rotated to the first position, the locking member 11 abuts and locks against the inner tube 16, and the anti-slip surface of the anti-slip member 17 abuts against the inner tube 16 under the action of the locking member 11. In this state, the anti-slip surface can increase the friction force between the anti-slip member 17 and the inner tube 16, thereby reducing the probability of relative sliding between the anti-slip member 17 and the inner tube 16, thereby improving the stability and reliability of the connection between the locking member 11 and the inner tube 16, and maintaining the length of the lifting device 100 to meet the customer's usage requirements.

[0060] In some embodiments, please refer to Figure 3 and Figure 6The locking member 11 is configured to form a locking space 112 for fitting the inner tube 16, and the locking member 11 is configured to have elastic deformation capability. During the controlled rotation switching between the first position and the second position, the control component 12 adjusts the size of the locking space 112 so that the locking member 11 and the inner tube 16 are locked together or separated.

[0061] In this application, when the control component 12 rotates to the first position, the locking member 11 is compressed and deformed by the control component 12, and the locking space 112 shrinks until the locking member 11 abuts and locks against the inner tube 16, thereby fixing the lifting tube 10 and the inner tube 16 together; when the control component 12 rotates to the second position, the control component 12 releases the action on the locking member 11, the locking member 11 returns to its original shape, and the locking space 112 expands until the locking member 11 and the inner tube 16 are separated, thereby enabling the lifting tube 10 to drive the locking member 11 to rise and fall relative to the inner tube 16.

[0062] It is understandable that when the locking member 11 undergoes compressive deformation under external force, it stores elastic potential energy. This elastic potential energy can drive the locking member 11 to rebound and return to its original state after the external force is released. During the process of the control component 12 rotating from the first position to the second position, the control component 12 gradually releases its action on the locking member 11, allowing the locking member 11 to rebound and return to its original state under the action of its own elastic potential energy, thereby expanding the locking space 112. Therefore, when the locking member 11 is in its original state, the cross-sectional area of ​​the locking space 112 formed by the locking member 11 needs to be larger than the cross-sectional area of ​​the inner tube 16 to ensure that the locking member 11 can move up and down relative to the inner tube 16 in its original state.

[0063] The specific design of the locking element 11 is not limited. For some embodiments, please refer to... Figure 3 and Figure 6 The locking member 11 has a locking part 111 and a lug part 113. The locking part 111 forms a locking space 112 along the circumferential structure of the inner tube 16. The two ends of the locking part 111 are spaced apart from each other and are respectively provided with lug parts 113.

[0064] In this application, the two lugs 113 are spaced apart from each other, and the two lugs 113 can move towards each other under the action of external force to get closer to each other, so that the locking member 11 is compressed and deformed and stores elastic potential energy, and the locking space 112 is reduced to the point that the locking member 11 and the inner tube 16 are abutted and locked; after the external force is released, the locking member 11 rebounds under the action of its own elastic potential energy, so as to drive the two lugs 113 to move away from each other, thereby expanding the locking space 112 and making the locking member 11 and the inner tube 16 separated.

[0065] Please see Figure 3 , Figure 7 and Figure 8 The control assembly 12 includes a control member 121 and an elastic member 122. The control member 121 is rotatably connected to two lugs 113. The elastic member 122 is deformably fitted between the control member 121 and at least one lug 113, and is used to deform and act on the corresponding lug 113 during the controlled rotation of the control member 121 to switch between the first position and the second position, so as to adjust the size of the locking space 112.

[0066] Understandably, when the control member 121 is rotated to the first position, the elastic member 122 is compressed and deformed under the action of the control member 121 and generates a thrust on the corresponding lug 113, so that the lug 113 moves toward another lug 113 and gets closer to each other, thereby causing the locking member 11 to be compressed and deformed and store elastic potential energy, and the locking space 112 is reduced to the point that the locking member 11 abuts and locks against the inner tube 16.

[0067] When the control member 121 rotates to the second position, the control member 121 releases its action on the elastic member 122, and the locking member 11 rebounds under its own elastic potential energy, so as to drive the two lugs 113 to move away from each other, thereby expanding the locking space 112 and separating the locking member 11 from the inner tube 16, and the elastic member 122 also returns to its original state.

[0068] The specific design of the control element 121 is not limited. For some embodiments, please refer to... Figure 3 , Figure 7 and Figure 8 The control component 121 includes two connecting rods spaced apart and a gripping rod connected between the two connecting rods. Each of the two connecting rods has a first end and a second end. The gripping rod is connected between the first ends of the two connecting rods, and the second ends of the two connecting rods are respectively connected to lugs 113.

[0069] Understandably, by holding the grip lever to control the rotation of the two connecting rods relative to the lug 113, the user can make good use of the lever principle to save the force required when controlling the rotation of the control component 121, making the operation convenient.

[0070] In some embodiments, please refer to Figure 3 , Figure 7 and Figure 8 An elastic element 122 is provided between the control element 121 and the two lugs 113.

[0071] When the control member 121 is rotated to the first position, both elastic members 122 are compressed and deformed under the action of the control member 121, and a thrust is generated on the corresponding lugs 113, so that the two lugs 113 move towards each other and get closer to each other, thereby causing the locking member 11 to be compressed and deformed and store elastic potential energy, and the locking space 112 is reduced to the point that the locking member 11 abuts and locks the inner tube 16.

[0072] When the control member 121 rotates to the second position, the control member 121 releases its action on the elastic member 122, and the locking member 11 rebounds under its own elastic potential energy, so as to drive the two lugs 113 to move away from each other, thereby expanding the locking space 112 and separating the locking member 11 from the inner tube 16, and the elastic member 122 also returns to its original state.

[0073] In some embodiments, all lugs 113, elastic elements 122, and control elements 121 are connected in series by screws.

[0074] In some embodiments, please refer to Figure 8 The mating surfaces between the elastic element 122 and the control element 121 are inclined surfaces, and the mating surfaces corresponding to the elastic element 122 and the control element 121 are the first inclined surface 123 and the second inclined surface 124, respectively. The first inclined surface 123 can rotate relative to the second inclined surface 124.

[0075] The first inclined surface 123 and the second inclined surface 124 each have a lifting end 125 and a settling end 126. When the control member 121 is in the first position, the lifting end 125 of the first inclined surface 123 is connected to the settling end 126 of the second inclined surface 124. When the control member 121 is in the second position, the lifting end 125 of the first inclined surface 123 is connected to the lifting end 125 of the second inclined surface 124, and the lifting end 125 of the second inclined surface 124 is compressed and deformed.

[0076] Understandably, during the controlled rotation of the control member 121 to switch from the second position to the first position, the first inclined surface 123 rotates relative to the second inclined surface 124, causing the lifting end 125 of the first inclined surface 123 to switch from docking with the sinking end 126 of the second inclined surface 124 to docking with the lifting end 125 of the second inclined surface 124. The lifting end 125 of the second inclined surface 124 is compressed and deformed under the pressure of the lifting end 125 of the first inclined surface 123, and generates a thrust acting on the corresponding lug 113, so that the lug 113 moves toward the other lug 113 and approaches each other, thereby causing the locking member 11 to be compressed and deformed and store elastic potential energy, and the locking space 112 shrinks to the point where the locking member 11 abuts and locks with the inner tube 16.

[0077] Correspondingly, during the controlled rotation of the control member 121 to switch from the first position to the second position, the first inclined surface 123 rotates relative to the second inclined surface 124, and the lifting end 125 of the first inclined surface 123 switches from docking with the lifting end 125 of the second inclined surface 124 to docking with the sinking end 126 of the second inclined surface 124. The lifting end 125 of the first inclined surface 123 releases the pressure on the lifting end 125 of the second inclined surface 124. The locking member 11 rebounds under its own elastic potential energy, so as to drive the two lugs 113 to move away from each other, thereby expanding the locking space 112 and separating the locking member 11 from the inner tube 16. The elastic member 122 also returns to its original state.

[0078] In some embodiments, please refer to Figure 6 and Figure 8 The elastic element 122 and the lug 113 are fitted together with a concave-convex fit. This ensures a stable connection between the elastic element 122 and the lug 113, reducing the chance of them separating and helping to ensure the safety and stability of the product.

[0079] In some embodiments, please refer to Figure 6 and Figure 8 The elastic member 122 has a mounting portion 127 protruding from the side facing away from the first inclined surface 123, and the lug portion 113 has a corresponding recessed mounting groove 114. The mounting portion 127 is embedded in the mounting groove 114 to achieve a stable connection between the elastic member 122 and the lug portion 113.

[0080] In some embodiments, please refer to Figure 2 and Figure 10 The lifting device 100 also includes a sliding member 14, which is sleeved on the inner tube 16 at intervals with the locking member 11 and is movably disposed inside the lifting tube 10. The sliding member 14 has a sliding part 141 protruding at intervals along the circumference of the inner tube 16.

[0081] The inner wall of the lifting tube 10 has a protruding mating part 101 extending along its own axis, and the mating parts 101 are spaced apart along the circumference of the lifting tube 10. A groove 102 is defined between each two adjacent mating parts 101, and the sliding part 141 is slidably disposed in the corresponding groove 102.

[0082] It is understandable that when the lifting tube 10 is controlled to move up and down relative to the inner tube 16 along its own axis, the sliding part 141 can slide along the slide groove 102. The sliding part 141 of the sliding member 14 corresponds one-to-one with the slide groove 102. The sliding member 14 is clamped between the two mating parts corresponding to the slide groove 102 to restrict the rotation of the sliding member 14 relative to the lifting tube 10, thereby restricting the rotation of the inner tube 16 relative to the lifting tube 10.

[0083] In some embodiments, please refer to Figure 3 and Figure 11 The lifting device 100 also includes a transition member 15, which is connected between the lifting tube 10 and the locking member 11 and is used to drive the locking member 11 to move up and down synchronously when the lifting tube 10 moves up and down relative to the inner tube 16.

[0084] The specific design of the transition member 15 is not limited. In some embodiments, the transition member 15 includes a transition portion 151 and a retaining edge 152. One end of the transition portion 151 abuts against the locking member 11, and the outer side of the other end is surrounded by the retaining edge 152, which abuts against the lifting tube 10. A through transition hole 153 is provided in the transition portion 151, and the inner tube 16 passes through the transition hole 153.

[0085] In some embodiments, please refer to Figure 3 and Figure 11 The transition piece 15 also includes a snap-fit ​​portion 154, which protrudes from the outer side of the transition piece 151. The inner wall of the lifting tube 10 is provided with a snap-fit ​​portion 103 that engages with the snap-fit ​​portion 154. In this way, the transition piece 15 can be snapped into place with the lifting tube 10 through the snap-fit ​​portion 154 and the snap-fit ​​portion 103, thereby achieving a fixed connection with the lifting tube 10. The transition piece 15 can then move up and down relative to the inner tube 16 along with the lifting tube 10, and drive the locking piece 11 to move up and down synchronously.

[0086] In some embodiments, please refer to Figure 4 and Figure 9 The lifting device 100 also includes a steering assembly 13, which includes a steering tube 131. The steering tube 131 and the lifting tube 10 are respectively movably sleeved on both ends of the inner tube 16. The inner tube 16 can controllably drive the lifting tube 10 to rotate synchronously around its own axis relative to the steering tube 131.

[0087] Understandably, when the lifting device 100 is used in a fan, the end of the lifting tube 10 facing away from the deflector tube 131 is connected to the head, and the end of the deflector tube 131 facing away from the lifting tube 10 is connected to the base. Depending on the type of fan, other equipment may be mounted on the base. For example, when the fan is an atomizing fan, the base may contain an atomizer, water tank, or other equipment, which would make the base heavy and the overall movement of the fan inconvenient.

[0088] In this application, the inner tube 16 can be independently controlled to rotate relative to the steering tube 131 around its own axis, and the inner tube 16 and the lifting tube 10 are limited by the sliding member 14, so that the inner tube 16 can drive the lifting tube 10 to rotate synchronously relative to the steering tube 131 around its own axis. In this way, the machine head connected to the lifting tube 10 can follow the lifting tube 10 to achieve 360° rotation, which is convenient for adjusting the angle of the machine head and is flexible in use, which can meet the needs of users.

[0089] In some embodiments, please refer to Figure 4 and Figure 9The steering assembly 13 also includes a limiting member 132, which is matched to one end of the inner tube 16 that extends into the steering tube 131;

[0090] A limiting part 1311 protrudes from the inner wall of the steering tube 131. The top of the limiting part 1311 abuts against the bottom of the limiting member 132 to restrict the inner tube 16 from rising and falling along its own axis.

[0091] It is understandable that when the lifting device 100 is applied to a fan, the inner tube 16 will move downward along the direction of gravity under the action of gravity within the diverting tube 131. This application uses the top of the limiting part 1311 to abut against the bottom of the limiting member 132 so that the limiting part 1311 can restrict the downward displacement of the inner tube 16 along the direction of gravity and can support the inner tube 16 so that the inner tube 16 can be stably assembled within the lifting tube 10.

[0092] In some embodiments, please refer to Figure 4 and Figure 9 The steering assembly 13 also includes a blocking member 133, which is fitted onto the steering tube 131 and movably sleeved outside the inner tube 16. The inner tube 16 can rotate circumferentially relative to the blocking member 133 around its own axis and move up and down along its own axis. The bottom of the blocking member 133 and the top of the limiting member 132 form an abutting fit to limit the movement of the limiting member 132 along its own axis.

[0093] Understandably, the blocking member 133 abuts against the limiting member 132 to prevent the inner tube 16 from coming out of the steering tube 131, so as to ensure the stability of the assembly of the inner tube 16 and the lifting tube 10.

[0094] The specific connection method between the blocking member 133 and the steering pipe 131 is not limited. For some embodiments, please refer to [link / reference]. Figure 4 The blocking component 133 is threadedly connected to the steering tube 131.

[0095] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0096] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A lifting device, characterized in that, include: Inner tube; The lifting pipe is mounted on the outside of the inner pipe in a way that allows it to be raised and lowered along its own axis; A locking element, fitted inside the lifting tube and capable of moving up and down relative to the inner tube along with the lifting tube; and A control component is rotatably coupled to one end of the locking member, and when rotated to a first position, it causes the locking member to abut and lock against the inner tube, or when rotated to a second position, it causes the locking member to separate from the inner tube at a distance. The locking member is configured to form a locking space for fitting the inner tube, and the locking member is constructed to have elastic deformation capability. During the controlled rotation switching between the first position and the second position, the control component adjusts the size of the locking space so that the locking member abuts and locks with the inner tube or is separated from it. The locking member has a locking part and a lug part. The locking part is constructed to form the locking space along the circumference of the inner tube. The two ends of the locking part are spaced apart from each other and are respectively provided with the lug part. The control component includes a control member and an elastic member. The control member is rotatably connected to the two lugs. The elastic member is deformably fitted between the control member and at least one lug, and is used to deform and act on the corresponding lug during the controlled rotation of the control member to switch between the first position and the second position, so as to adjust the size of the locking space.

2. The lifting device according to claim 1, characterized in that, The mating surfaces between the elastic element and the control element are inclined surfaces, and the mating surfaces corresponding to the elastic element and the control element are respectively a first inclined surface and a second inclined surface, and the first inclined surface can rotate relative to the second inclined surface; Both the first inclined surface and the second inclined surface have a lifting end and a settling end. When the control component is in the first position, the lifting end of the first inclined surface is connected to the settling end of the second inclined surface. When the control component is in the second position, the lifting end of the first inclined surface is connected to the lifting end of the second inclined surface, and the lifting end of the second inclined surface is compressed and deformed.

3. The lifting device according to claim 1, characterized in that, The elastic element and the lug are in a concave-convex fit.

4. The lifting device according to claim 1, characterized in that, It also includes a sliding member, which is sleeved on the inner tube at intervals with the locking member and is movably disposed inside the lifting tube. The sliding member has sliding portions protruding at intervals along the circumference of the inner tube. The inner wall of the lifting tube has a protruding mating part extending along its own axis, and the mating parts are spaced apart circumferentially along the lifting tube. A sliding groove is defined between each two adjacent mating parts, and the sliding part is slidably disposed in the corresponding sliding groove.

5. The lifting device according to claim 1, characterized in that, It also includes a transition piece, which is connected between the lifting tube and the locking piece, and is used to drive the locking piece to move up and down synchronously when the lifting tube moves up and down relative to the inner tube.

6. The lifting device according to claim 1, characterized in that, It also includes a steering assembly, which includes a steering tube and a lifting tube respectively movably sleeved at both ends of the inner tube. The inner tube can controllably drive the lifting tube to rotate synchronously relative to the steering tube around its own axis.

7. The lifting device according to claim 6, characterized in that, The steering assembly also includes a limiting member, which is coupled to one end of the inner tube that extends into the steering tube; A limiting part protrudes from the inner wall of the steering tube, and the top of the limiting part abuts against the bottom of the limiting member to restrict the raising and lowering of the inner tube along its own axis.

8. The lifting device according to claim 7, characterized in that, The steering assembly also includes a blocking member, which is fitted onto the steering tube and movably sleeved outside the inner tube. The inner tube is capable of circumferentially rotating relative to the blocking member around its own axis and moving up and down along its own axis. The bottom of the blocking member and the top of the limiting member form an abutting fit to restrict the movement of the limiting member along its own axis.

9. A fan, characterized in that, It includes a machine head, a base, and a lifting device as described in any one of claims 1 to 8, wherein the lifting device is connected between the machine head and the base.

Images