JP3215348U - Sliding limit stop structure between inner tube and outer tube or base - Google Patents

Abstract

A sliding limit stop structure is provided between an inner tube and an outer tube or a base that has a simple structure and stops at the limit when sliding. A stop lump 30 protruding outside the inner tube 3 is installed on the outer tube wall of the inner tube 3. When the stop lump 30 slides on the inner tube 3 or the hole base 2 and reaches the extreme position, the stop lump 30 is stopped outside the fitting entrance 20 of the hole base 2. Accordingly, the stop lump 30 is extremely stopped when sliding in the contraction direction between the inner tube 2 and the base 2. [Selection] Figure 2

Description

  The present invention relates to a sliding limit stop structure between an inner pipe and an outer pipe or a base. In particular, the present invention is an outer pipe sliding limit stop structure that achieves the effect of limiting the sliding to the limit with a simple structure.

  When the inner pipe and the outer pipe (or the base) are fitted to each other, the altitude of the object to be supported, for example, the expansion / contraction support rod of the electric fan, is adjusted by sliding between them. The support rod of the electric fan has an inner tube, the uppermost end of the inner tube fixes the electric fan main body, and the bottom end is inserted into the outer tube (or a single hole base). The bottom end of the outer tube further fixes the bottom plate to facilitate grounding. Alternatively, the hole base connects and grounds a plurality of stand legs. The inner pipe slides in the outer pipe (or the base) to adjust the altitude of the electric fan body. The inner pipe moves downward indefinitely to prevent the bottom end of the inner pipe from colliding with the bottom plate or the main plate. Alternatively, it is possible to prevent the electric fan main body connected to the uppermost end of the inner pipe from being lowered and hitting the fitting inlet of the outer pipe (or the hole base). In all structures, a sliding limit limiting mechanism is installed to prevent the above situation from occurring.

  As a problem to be solved, the known sliding limit limiting mechanism always limits the sliding of the inner pipe by installing the limiting mechanism inside the outer pipe or the hole base, but the structure is complicated. In addition, it is inconvenient to install on the pipe or in the hole.

  The present inventor has improved the above-mentioned known drawbacks and provided the present invention.

  In the present invention, a stop lump protruding outside the inner tube is installed on the outer tube wall of the inner tube. When the stop lump slides on the inner tube or the outer tube (abutment) and reaches the extreme position, the stop lump is stopped outside the fitting entrance of the outer tube (abutment). Accordingly, the main feature of the stop mass is that the stop lump stops when sliding in the contraction direction between the inner tube and the outer tube or the base.

  The sliding limit stop structure between the inner pipe and the outer pipe or the base of the present invention is a simple structure and has an advantage of stopping at the limit when sliding.

In the Example of this invention, it is a three-dimensional view of the fan stand leg applied to the inner tube and the hole base. In the Example of this invention, it is an exploded view of the fan stand leg applied to the inner tube and the hole base. In the Example of this invention, it is an assembly sectional view of the fan stand leg applied to the inner tube and the hole base. FIG. 4 is an enlarged view of part A of FIG. 3. It is an external view which applied to an inner pipe and a hole stand in the Example of this invention, and installed the electric fan main body. In the Example of this invention, it is a structure sectional drawing when it applies to an inner tube and an outer tube. It is an application reference figure of another Example of the stop lump of this invention.

  The main object of the present invention is to provide a sliding limit stop structure between an inner tube and an outer tube or a hole base, which has a simple structure and achieves an effect of stopping at the limit when sliding.

  The main feature of the present invention is that a stop lump protruding outside the inner tube is installed on the outer tube wall of the inner tube, and the stop lump slides to the extreme position by sliding the inner tube or the outer tube (abutment). When the stop lump reaches, the stop lump is stopped at the fitting port of the outer tube (hole base), and the stop lump is an extreme stop when the stop lump slides in the contraction direction between the inner tube and the outer tube or mast base.

  With respect to achievement of the above-mentioned objects and effects of the present invention, examples will be given below and will be described below together with diagrams.

  As shown in FIGS. 1 to 3, the embodiment of the present invention is applied to a fan stand leg 1 and includes a hole base 2 and an inner tube 3.

  The hole base 2 has a fitting opening 20 in the middle, and a stand leg 21 extending downward is connected to each position such as a peripheral surface. The number of stand legs 21 lifts the base 2 from the ground at a certain height. A fixing device 22 is installed on one side of the hole base 2, and the fixing device 22 is arranged with a fastening plug 220 (FIG. 3) extending in the radial direction and inserted into the fitting inlet 20.

  One end of the inner pipe 3 is inserted into the hole base 2 through the fitting inlet 20, and the other end is connected to the electric fan body 4 as shown in FIG. The inner tube 3 is fixed at a position after sliding in the hole base 2 and is fixed by fastening with the fastening plug 220.

  In the present invention, a stop lump 30 protruding from the outside of the inner tube 3 is installed on the outer tube wall of the inner tube 3, and the stop lump 30 reaches the extreme position by sliding the inner tube 3 to the hole base 2. When this occurs, the stop lump 30 is stopped outside the insertion port 20 of the hole base 2, whereby the stop lump 30 slides between the inner tube 3 and the hole base 2 in the storing direction to make an extreme stop ( As an example, see FIGS.

  Next, as shown in FIG. 5, the inner tube 3 is fitted to the outer tube 5. One end of the inner tube 3 is fitted into the outer tube 5 through the fitting port 50 of the outer tube 5. When both the inner and outer tubes 3 and 5 slide in the contraction direction and reach the limit, the stop lump 30 on the inner tube 3 collides with the edge of the fitting port 50 of the outer tube 5 and cannot slide continuously. . Accordingly, the stop lump 30 becomes an extreme stop in which the inner tube 3 moves in the contraction direction of the outer tube 5.

  The stop lump 30 is installed integrally with the inner tube 3. If the inner tube 3 is a metal tube, the stop lump 30 is pressed and molded outwardly from the inner tube 3 tube wall by a press method. Alternatively, it is configured on the inner wall of the inner tube 3 and additionally installed, and as shown in FIG. That is, the head of the screw part 31 constitutes the stop lump 30.

  As described above, the present invention is simple in structure and achieves the effect that the inner tube slides and stops in the limit without assembling any parts. Not only is assembly cost unnecessary, but there is no need to install any parts, so it is practical and inventive.

  As described above, in order to have novelty, practicality and inventive step, the present invention applies for a utility model registration in accordance with laws and regulations.

DESCRIPTION OF SYMBOLS 1 Fan stand leg 2 Hole base 20 Inlet 21 Stand leg 22 Fixing device 220 Fastening plug 3 Inner pipe 30 Stop lump 31 Screw part 4 Fan main body 5 Outer pipe 50 Inlet

Claims (4)

One end of the inner tube is inserted into the outer tube or hole base through the fitting hole of the outer tube or hole base, and the inner tube slides relative to each other in the outer tube or hole base. In sliding limit stop structure between tube and outer tube or base,
A protruding stop mass is installed on the outer tube wall of the inner tube, and the stop mass is inserted into the outer tube when the inner tube slides in the contraction direction of the outer tube or the end of the hole base and reaches the limit. A sliding limit stop structure between the inner tube and the outer tube or the base, characterized by being stopped by the lip of the mouth.   2. The sliding limit stop structure between an inner tube and an outer tube or a hole base according to claim 1, wherein the stop lump is integrally formed with the inner tube.   3. The sliding between an inner tube and an outer tube or a hole base according to claim 2, wherein when the inner tube is a metal tube, the stop lump is formed by pressing outwardly from the inner tube wall. Extreme stop structure.   2. The sliding limit stop structure between an inner tube and an outer tube or a pedestal according to claim 1, wherein the stop lump is screwed in a radial direction with the outer wall of the inner tube by a screw part.

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