Telescopic tube assembly and floor fan

Abstract

The utility model relates to a telescopic pipe assembly and a floor fan, the telescopic pipe assembly includes outer tube, inner tube, lock pad, gasket and control screw, the inner tube, lock pad, gasket and control screw are sequentially arranged along the radial direction of outer tube, the lock pad and gasket can be moved along the radial direction of outer tube relative to outer tube under the impulsion of control screw, the hardness of gasket is higher than that of lock pad, the limiting structure is used for preventing the lock pad and gasket from moving along the axial direction of outer tube relative to outer tube, the floor fan includes the telescopic pipe assembly, the hardness of lock pad is relatively low, which is conducive to improving the locking effect on the inner tube, and the hardness of gasket is relatively high, which is conducive to preventing control screw from damaging lock pad and inner tube.

Description

Technical Field

[0001] This utility model relates to a telescopic tube assembly and a floor fan. Background Technology

[0002] Most floor fans include a telescopic tube assembly that connects the fan head and the base to adjust the height of the fan head. The telescopic tube assembly consists of an inner tube, an outer tube, and a control screw. The inner tube is inserted into the outer tube. The typical locking method is to screw the control screw into the outer tube. By tightening the control screw, the control screw directly presses against the inner tube, preventing the inner tube from moving relative to the outer tube.

[0003] During the tightening of the control screw, users often tighten it forcefully to ensure it is firmly against the inner tube, causing the inner tube to deform. The conventional solution is to harden the inner tube or instruct users in the instruction manual not to overtighten the control screw. However, users tighten the control screw because the contact area between the control screw and the inner tube is small, resulting in low friction and poor locking effect. Hardening the inner tube does not solve this problem. Utility Model Content

[0004] The technical problem to be solved by this utility model is: how to improve the locking effect of the inner tube.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A telescopic tube assembly includes an outer tube, an inner tube, a locking washer, a gasket, and a control screw. The inner tube, locking washer, gasket, and control screw are arranged sequentially along the radial direction of the outer tube. The locking washer and the gasket are capable of moving relative to the outer tube radially under the push of the control screw. The hardness of the gasket is higher than that of the locking washer. The assembly includes a limiting structure for preventing the locking washer and the gasket from moving relative to the outer tube axially.

[0006] In some embodiments, the telescopic tube assembly includes a locking plate, wherein the locking pad, the gasket, and the locking plate are arranged sequentially along the radial direction of the outer tube, the control screw is screwed to the locking plate, and the limiting structure is also used to prevent the locking plate from rotating with the control screw; the locking plate is located between the inner tube and the outer tube, the outer tube has a clearance hole, the control screw is inserted into the clearance hole, and the clearance hole is a light hole.

[0007] In some embodiments, the telescopic tube assembly includes an inner locking head disposed between the outer tube and the inner tube, the inner locking head being fixedly connected to the outer tube, the inner locking head having a limiting hole, the limiting structure being the wall of the limiting hole, and the locking plate, locking pad, and gasket being disposed within the limiting hole.

[0008] In some embodiments, the locking pad has a limiting groove, the pad is disposed in the limiting groove, the groove wall of the limiting groove is used to prevent the pad from moving relative to the locking pad along the axial direction of the outer tube, the bottom of the limiting groove and the locking plate limit the range of radial movement of the pad relative to the locking pad along the outer tube, and the inner wall of the locking pad and the outer tube limit the range of radial movement of the locking plate relative to the outer tube along the outer tube.

[0009] In some embodiments, the locking chip includes a central portion and a surrounding portion surrounding the central portion, the central portion being thicker than the surrounding portion, and the central portion being inserted into the limiting groove when the surrounding portion abuts against the locking pad.

[0010] In some embodiments, the wall of the limiting hole includes a limiting surface, and the limiting surface and the locking plate limit the range of radial movement of the locking pad relative to the inner locking head along the outer tube.

[0011] In some embodiments, the locking pad is made of rubber, and the gasket and the locking code are made of steel.

[0012] In some embodiments, the telescopic tube assembly includes a first screw, which is sequentially screwed to the wall of the outer tube and the inner locking head, thereby fixing the inner locking head to the outer tube.

[0013] In some embodiments, the telescopic tube assembly includes a second screw that is screwed to the wall of the inner tube, the inner tube being inserted into the outer tube, and the second screw being located outside the outer tube to limit the depth to which the inner tube is inserted into the outer tube.

[0014] A floor fan, including the telescopic tube assembly.

[0015] The beneficial effects of this utility model are as follows: For floor fans using the telescopic tube assembly provided by this utility model, when the user tightens the control screw, the control screw presses against the washer, the washer presses against the locking washer, and the locking washer is in close contact with the inner tube, preventing the inner tube from moving relative to the outer tube. The locking washer has relatively low hardness, which helps to improve the locking effect on the inner tube, while the washer has relatively high hardness, which helps to prevent the control screw from damaging the locking washer and the inner tube. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the telescopic tube assembly structure according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of the telescopic tube assembly in this embodiment; Figure 3 for Figure 2 A magnified view of a portion of region A; Figure 4 for Figure 3 A magnified view of a portion of region B; Figure 5 This is an exploded view of the telescopic tube assembly in this embodiment; Figure 6 for Figure 5 A magnified view of region C.

[0017] Label Explanation: 1. Inner tube; 2. Outer tube; 3. Control screw; 4. Locking washer; 5. Washer; 6. Locking code piece; 7. Inner lock head; 8. First screw; 9. Second screw; 21. Clearance hole; 41. Limiting groove; 61. Central part; 62. Surrounding part; 71. Limiting hole; 72. Limiting surface. Detailed Implementation

[0018] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0019] Conventional telescopic tube assemblies lock the inner tube by directly pressing the control screw, which is screwed onto the outer tube, against the inner tube. However, due to the small contact area between the control screw and the inner tube and insufficient friction, the locking effect on the inner tube is not good. This leads users to always tighten the control screw with excessive force, causing the inner tube to dent and deform.

[0020] To solve this problem, this utility model provides a telescopic tube assembly, please refer to... Figures 1 to 4 The telescopic tube assembly includes an outer tube 2, an inner tube 1, a locking pad 4, a gasket 5, and a control screw 3. The inner tube 1, locking pad 4, gasket 5, and control screw 3 are arranged sequentially along the radial direction of the outer tube 2. The locking pad 4 and gasket 5 can move relative to the outer tube 2 along the radial direction of the outer tube 2 under the push of the control screw 3. The hardness of the gasket 5 is higher than that of the locking pad 4. The telescopic tube assembly includes a limiting structure, which is used to prevent the locking pad 4 and gasket 5 from moving relative to the outer tube 2 along the axial direction of the outer tube 2.

[0021] As can be seen from the above description, the beneficial effects of this utility model are as follows: When the user tightens the control screw 3, the control screw 3 presses against the washer 5, the washer 5 presses against the locking washer 4, and the locking washer 4 is in close contact with the inner tube 1, preventing the inner tube 1 from moving relative to the outer tube 2. The locking washer 4 has relatively low hardness, which helps to improve the locking effect on the inner tube 1, while the washer 5 has relatively high hardness, which helps to prevent the control screw 3 from damaging the locking washer 4 and the inner tube 1.

[0022] In some embodiments, the telescopic tube assembly includes a locking plate 6, a locking pad 4, a pad 5, and the locking plate 6 arranged sequentially along the radial direction of the outer tube 2. A control screw 3 is screwed to the locking plate 6, and a limiting structure is also used to prevent the locking plate 6 from rotating with the control screw 3. The locking plate 6 is located between the inner tube 1 and the outer tube 2. Please refer to... Figure 5The outer tube 2 has a relief hole 21, and the control screw 3 is inserted into the relief hole 21. The relief hole 21 is a smooth hole.

[0023] As can be seen from the above description, compared to the control screw 3 being directly screwed onto the wall of the outer tube 2, by setting a locking piece 6 inside the outer tube 2 and the inner tube 1 to be screwed onto the control screw 3, as long as there is a sufficient gap between the inner tube 1 and the outer tube 2, the wall of the outer tube 2 does not need to be locally thickened or protruded for the reliability of the screwing connection, thus allowing the outer tube 2 to have a simpler appearance.

[0024] In some embodiments, please refer to Figure 3 The telescopic tube assembly includes an inner locking head 7, which is located between the outer tube 2 and the inner tube 1. The inner locking head 7 is fixedly connected to the outer tube 2. Please refer to [reference needed]. Figure 6 The inner lock head 7 has a limiting hole 71, and the limiting structure is the hole wall of the limiting hole 71. The lock code piece 6, the lock pad 4 and the pad 5 are disposed in the limiting hole 71.

[0025] As can be seen from the above description, compared to directly forming the limiting structure on the wall of the outer tube 2, setting an inner lock head 7 to limit the locking plate 6, locking pad 4 and pad 5 can keep the structure of the outer tube 2 simple and reduce the difficulty of production and manufacturing.

[0026] In some embodiments, please refer to Figure 5 and Figure 6 The locking pad 4 has a limiting groove 41, and the pad 5 is disposed in the limiting groove 41. The groove wall of the limiting groove 41 is used to prevent the pad 5 from moving relative to the locking pad 4 along the axial direction of the outer tube 2. The bottom of the limiting groove 41 and the locking code 6 limit the range of radial movement of the pad 5 relative to the locking pad 4 along the outer tube 2. The inner wall of the locking pad 4 and the outer tube 2 limits the range of radial movement of the locking code 6 relative to the outer tube 2 along the outer tube 2.

[0027] As can be seen from the above description, the function of the gasket 5 is to prevent the control screw 3 from damaging the locking pad 4 and the inner tube 1. Therefore, the size of the gasket 5 does not need to be too large, as long as it is larger than the control screw 3. By setting the limiting groove 41 on the locking pad 4 to limit the gasket 5, the problem that the gasket 5 is too small to be limited by the limiting hole 71 can be solved.

[0028] In some embodiments, please refer to Figure 6 The locking chip 6 includes a central portion 61 and a surrounding portion 62. The thickness of the central portion 61 is greater than that of the surrounding portion 62. When the surrounding portion 62 abuts against the locking pad 4, the central portion 61 is inserted into the limiting groove 41.

[0029] As can be seen from the above description, in order to improve the reliability of the screw connection between the control screw 3 and the locking plate 6, the central part 61 of the control screw 3 is thickened. The limiting groove 41 of the locking pad 4 is used not only to place the pad 5, but also to make way for the central part 61. This helps to make full use of the limited space between the inner tube 1 and the outer tube 2, and ensures the reliability of the screw connection between the control screw 3 and the locking plate 6 without the outer tube 2 needing to be designed with a protrusion.

[0030] In some embodiments, please refer to Figure 6 The wall of the limiting hole 71 includes a limiting surface 72, and the limiting surface 72 and the locking plate 6 limit the range of radial movement of the locking pad 4 relative to the inner locking head 7 along the outer tube 2.

[0031] As can be seen from the above description, during the assembly of the telescopic tube assembly, the locking pad 4, the gasket 5, and the locking code 6 are first installed onto the inner lock head 7, then the inner lock head 7 is installed, and finally the inner tube 1 is installed. Therefore, before the inner tube 1 is installed, the locking pad 4 is not blocked by the inner tube 1. During this period, the limiting surface 72 of the inner lock head 7 can prevent the locking pad 4 from falling out of the limiting hole 71.

[0032] In some embodiments, the locking pad 4 is made of rubber, and the pad 5 and the locking code 6 are made of steel.

[0033] As can be seen from the above description, the locking pad 4 is made of soft rubber, which helps to improve the locking effect on the inner tube 1, while the pad 5 and the locking plate 6 are made of sturdy steel, which helps to improve the durability of the pad 5 and the locking plate 6.

[0034] In some embodiments, please refer to Figure 3 The telescopic tube assembly includes a first screw 8, which is screwed sequentially to the wall of the outer tube 2 and the inner lock head 7, so that the inner lock head 7 is fixedly connected to the outer tube 2.

[0035] As described above, screws are used to fix the outer tube 2 and the inner lock head 7 together, facilitating their assembly. In other embodiments, the inner lock head 7 and the outer tube 2 can also be fixedly connected in other ways, such as by interference fit.

[0036] In some embodiments, the telescopic tube assembly includes a second screw 9, which is screwed to the wall of the inner tube 1. The inner tube 1 is inserted into the outer tube 2, and the second screw 9 is located outside the outer tube 2 to limit the depth of the inner tube 1 inserted into the outer tube 2.

[0037] As described above, limiting the travel of the inner tube 1 by installing screws on it is low-cost, simple in structure, and easy to assemble. In other embodiments, the depth of the inner tube 1 inserted into the outer tube 2 can also be limited by other means, such as welding a protrusion onto the inner tube 1.

[0038] This utility model also provides a floor fan, which includes the telescopic tube assembly provided by this utility model.

[0039] Please refer to Figures 1 to 6 One embodiment of this utility model is as follows: A floor fan includes a fan head, a base, and a telescopic tube assembly. The telescopic tube assembly includes an outer tube 2, an inner tube 1, an inner locking head 7, a locking pad 4, a gasket 5, a locking code 6, and a control screw 3. The locking pad 4 is made of rubber, while the gasket 5 and the locking code 6 are made of steel. Please refer to [reference needed]. Figure 3 The inner lock head 7 is located between the outer tube 2 and the inner tube 1. The inner lock head 7 and the outer tube 2 are fixedly connected by the first screw 8. The inner lock head 7 has a limiting hole 71. The lock code piece 6, the lock pad 4 and the pad 5 are located in the limiting hole 71.

[0040] Please refer to Figure 4 The inner tube 1, locking washer 4, gasket 5, and control screw 3 are arranged radially along the outer tube 2. The locking washer 4, gasket 5, and locking clip 6 are also arranged radially along the outer tube 2. The control screw 3 is screwed to the locking clip 6. During the tightening of the control screw 3, the locking washer 4 and gasket 5 move radially towards the inner tube 1 relative to the outer tube 2 under the push of the control screw 3, until the locking washer 4 is tightly pressed against the inner tube 1. After loosening the control screw 3, the pressure of the locking washer 4 on the inner tube 1 disappears, and the inner tube 1 can easily move relative to the outer tube 2.

[0041] Please refer to Figure 6 The limiting hole 71 has a square structure. The locking pad 4 and the locking code 6 are embedded in the limiting hole 71. The locking pad 4 has a limiting groove 41, which has a square structure. The pad 5 is embedded in the limiting groove 41. Thus, the hole wall of the limiting hole 71 prevents the locking pad 4 and the pad 5 from moving relative to the outer tube 2 along the axial direction of the outer tube 2, and prevents the locking code 6 from rotating with the control screw 3. The groove wall of the limiting groove 41 prevents the pad 5 from moving relative to the locking pad 4 along the axial direction of the outer tube 2.

[0042] The bottom of the limiting groove 41 and the locking piece 6 limit the range of radial movement of the pad 5 relative to the locking pad 4 along the outer tube 2. The locking pad 4 and the inner wall of the outer tube 2 limit the range of radial movement of the locking piece 6 relative to the outer tube 2. The wall of the limiting hole 71 includes a limiting surface 72, which and the locking piece 6 limit the range of radial movement of the locking pad 4 relative to the inner lock head 7 along the outer tube 2. The locking piece 6 includes a central portion 61 and a surrounding portion 62. The thickness of the central portion 61 is greater than that of the surrounding portion 62. When the surrounding portion 62 abuts against the locking pad 4, the central portion 61 is inserted into the limiting groove 41.

[0043] Please refer to Figure 3 The inner tube 1 is inserted into the outer tube 2, and the second screw 9 is located outside the outer tube 2 and is screwed to the wall of the inner tube 1 to limit the depth of the inner tube 1 inserted into the outer tube 2.

[0044] The improvement of this utility model to the floor fan is only in the mechanism for locking the inner tube 1 in the telescopic tube assembly. As for the fan head, base, and how the two are connected to the telescopic tube assembly, those skilled in the art can refer to existing floor fans on the market for design.

[0045] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A telescopic tube assembly, characterized in that: It includes an outer tube, an inner tube, a locking washer, a gasket, and a control screw. The inner tube, locking washer, gasket, and control screw are arranged sequentially along the radial direction of the outer tube. The locking washer and the gasket can move relative to the outer tube along the radial direction of the outer tube under the push of the control screw. The hardness of the gasket is higher than that of the locking washer. It includes a limiting structure for preventing the locking pad and the gasket from moving relative to the outer tube along the axial direction of the outer tube.

2. The telescopic tube assembly as described in claim 1, characterized in that: The device includes a locking plate, wherein the locking pad, the pad, and the locking plate are arranged sequentially along the radial direction of the outer tube, the control screw is screwed to the locking plate, and the limiting structure is also used to prevent the locking plate from rotating with the control screw; The locking chip is located between the inner tube and the outer tube. The outer tube has a clearance hole, and the control screw is inserted into the clearance hole, which is a light hole.

3. The telescopic tube assembly as described in claim 2, characterized in that: The device includes an inner lock head, which is located between the outer tube and the inner tube and is fixedly connected to the outer tube. The inner lock head has a limiting hole, and the limiting structure is the wall of the limiting hole. The lock code piece, lock pad, and gasket are located inside the limiting hole.

4. The telescopic tube assembly as described in claim 3, characterized in that: The locking pad has a limiting groove, and the pad is disposed in the limiting groove. The groove wall of the limiting groove is used to prevent the pad from moving relative to the locking pad along the axial direction of the outer tube. The bottom of the limiting groove and the locking plate limit the range of radial movement of the pad relative to the locking pad along the outer tube. The locking pad and the inner wall of the outer tube limit the range of radial movement of the locking plate relative to the outer tube along the outer tube.

5. The telescopic tube assembly as described in claim 4, characterized in that: The locking chip includes a central portion and a surrounding portion around the central portion. The thickness of the central portion is greater than that of the surrounding portion. When the surrounding portion abuts against the locking pad, the central portion is inserted into the limiting groove.

6. The telescopic tube assembly as described in claim 4, characterized in that: The wall of the limiting hole includes a limiting surface, and the limiting surface and the locking plate limit the range of radial movement of the locking pad relative to the inner locking head along the outer tube.

7. The telescopic tube assembly as described in claim 4, characterized in that: The locking pad is made of rubber, while the gasket and the locking code are made of steel.

8. The telescopic tube assembly as described in claim 3, characterized in that: It includes a first screw, which is sequentially screwed to the wall of the outer tube and the inner lock head, so that the inner lock head is fixedly connected to the outer tube.

9. The telescopic tube assembly as described in claim 1, characterized in that: It includes a second screw, which is screwed to the wall of the inner tube. The inner tube is inserted into the outer tube, and the second screw is located outside the outer tube to limit the depth of the inner tube inserted into the outer tube.

10. A floor fan, characterized in that: Includes the telescopic tube assembly as described in any one of claims 1 to 9.

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