JP3083289U - Telescopic tube coupling structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a telescopic tube connecting structure which can use an elliptical hollow outer tube (24) and an elliptical hollow inner tube (41) and has convenience during operation. The present invention relates to a telescopic tube coupling structure, in which an inner tube is fixed to an inner tube fixing seat, and an outer tube is fixed to an outer tube fixing seat. Provide an outer tube fixing seat on the base part, insert a through hole with a polygonal shaft upward from the lower end of the base part,
Insert the polygonal shaft to the interlocking seat. An eccentric ring is attached to the eccentric part provided on the interlocking seat, and an inner pipe fixing seat is provided on the interlocking seat.
When the inner tube is pulled out to a certain length with respect to the outer tube and the base is rotated, the polygonal shaft at the center is moved, and the interlocking interlocking seat also rotates at the same time. Therefore, the position of the outer tube can be fixed by the eccentric ring on the interlocking seat pressing against the inner wall side of the outer tube. In addition, for the convenience of people's use, the present invention is a telescopic tube coupling structure that can use an elliptical hollow outer tube and an elliptical hollow inner tube.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a telescopic tube coupling structure, and more particularly to a telescopic tube coupling structure using an elliptical hollow outer tube and an elliptical hollow inner tube to provide convenience during use.

[0002]

[Prior art]

 So-called telescopic tubes are always used for various purposes. To give an example, the rod for rescue use can be converted to a long length, is in the state of expansion and contraction of the inner and outer tubes, and after extending to a certain length, the position is fixed by eccentricity. The general-purpose connection structure uses the principle of eccentricity of the inner and outer tubes to adjust the length. When the inner tube is inserted into the rubber shaft-shaped positioning seat fixed to one end of the outer tube, the positioning hole of the eccentric portion of the positioning seat is connected with the through hole of the rubber activity seat by connecting parts, and the penetration of the activity seat is made. The hole and the orientation hole in the orientation seat have the same eccentric position. When the inner pipe is installed inside the outer pipe, the partial activity seat exposed from the inner pipe presses against the inner wall side of the outer pipe. The position of the activity seat of the eccentric part can be fixed. By turning it back to its original position, the mutual pushing can be released and the length of the telescopic tube can be adjusted.

However, the above-described method of pressing the eccentric portion cannot be applied to a non-circular pipe. There is a demand to change the pipe to an elliptical shape depending on the situation, but such an eccentric method cannot be used and the operation method is inconvenient.

[0004]

[Problems to be solved by the invention]

 An object of the present invention is to provide a telescopic tube coupling structure. Install the inner tube on the inner tube fixing seat, fix the outer tube on the outer tube fixing seat, and attach the outer tube fixing seat on the base seat. Insert the lower end of the base seat through the polygonal shaft to the interlocking seat, attach an eccentric ring on the interlocking seat, and attach a rubber cover on the eccentric ring. After fixing the inner tube fixed seat on the interlocking seat, pulling out the inner tube to a certain length with respect to the outer tube, rotate the base part and move the center polygon axis to The interlocking seat also rotates at the same time. Therefore, the eccentric ring on the interlocking seat can press against the inner wall side of the outer tube. The present invention can be applied to an elliptical hollow tubular telescopic tube, and has the convenience of operation.

[0005]

[Means for Solving the Problems]

 The present invention relates to the design of a telescopic tube connecting structure for solving the above-mentioned problems. The outer tube can be fixed on the outer tube fixing seat, and the outer tube fixing seat can be installed at the upper end of the base. The interlocking seat is installed on the polygonal shaft inside the outer tube, and the interlocking part is provided above the interlocking seat. The eccentric ring is attached to the interlocking part on the interlocking seat. And an inner pipe fixing seat for providing an inner pipe at the upper end of the inner pipe fixing seat. The inner pipe is pulled out to a certain length with respect to the outer pipe, and when the base is rotated, it is at the center The multi-axis shaft is interlocked and the interlocking interlocking seat rotates at the same time, so that the eccentric ring on the interlocking seat can be fixed in position by pressing against the inner wall side of the outer tube. .

According to a second aspect of the present invention, the outer tube is formed in an elliptical hollow shape and attached to an ellipsoid, and the inner tube is elliptical hollow and attached to an ellipsoid on an inner tube fixing seat. The telescopic tube coupling structure according to claim 1, characterized in that:

According to a third aspect of the present invention, the base portion is composed of a plurality of cylinders having different diameters, a hole is provided at an upper end of the cylinder having a maximum diameter, a spring is provided in the hole, Leave the chuck ball at the top of the ring, provide multiple recesses on the bottom of the outer tube fixing seat to fix the chuck ball, set a polygonal through hole at the center of the interlocking seat, and insert the polygonal shaft. And a notch groove or a flange portion is provided on the interlocking seat, and is passed through a circular through hole in the eccentric ring, and is attached to the inner pipe fixing seat by the flange portion. It is a telescopic tube connection structure of the description.

[0008]

[Embodiment of the invention]

 Hereinafter, the present invention will be described in detail with reference to the drawings. The base seat (10) is composed of a plurality of cylinders having different diameters. One hole (11) is provided on the cylinder having the largest diameter, and the spring (12) is left in the hole (11). A chuck ball (13) is placed on the spring (12), and a cutout groove (14) is provided on a cylinder having a minimum diameter. Further, a flange (15) is provided on the smallest cylindrical body, and a polygonal through hole (16) is provided at the center of the base seat (10). The polygonal hole provides for the insertion of a polygonal shaft (17).

The lower end of the outer tube fixing seat (20) is formed in a round seat (21), is mounted on the largest cylindrical shape in the base seat (10), and has a chuck on the bottom surface of the round seat (21). A plurality of recesses (22) are provided to provide the function of being fixed to the ball (13). An ellipsoid (23) providing a function of fixing the outer tube (24) is provided on the round seat (21), and a through hole (25) is formed inside the ellipsoid (23). The through-hole (25) is mounted on the base seat (10), and the above-mentioned flange (15) is inserted through the through-hole (25). Attach and connect the outer tube fixing seat (20) and the base seat (10) integrally. However, the base seat (10) can be pivoted at the lower end of the outer tube fixing seat.

A vertical polygonal through-hole (31) is provided inside the interlocking seat (30), and the polygonal through-hole (31) provides insertion of the polygonal shaft (17). An eccentric part (32) is formed in the middle part of the interlocking seat (30), and a notch groove (33) and a flange (34) similar to those described above are provided on the interlocking seat (30).

The eccentric ring (35) is made of Teflon material, has a circular hole (36) formed in the center of the eccentric ring (35), and has a rubber cover installed outside. The circular hole (36) is attached to the aforementioned eccentric part (32), and when the eccentric part (32) is rotated, the associated eccentric ring (35) also rotates.

An inner pipe fixing seat (40) is mounted on the interlocking seat (30), and the inner pipe fixing seat (40) is fixed on the interlocking seat (30) by a flange portion (34). An ellipsoid (401) is formed on the inner pipe fixing seat (40), and the inner pipe (41) is fixed on the ellipsoid (401). Appropriate clearance is provided between the outer tube (24) and the inner tube (41) to provide for a smooth vertical movement of the inner tube (41) in the outer tube (24).

When adjusting the distance between the outer tube (24) and the inner tube (41), the telescopic tube (see FIG. 2) assembled by the above-described coupling structure is first connected to the outer tube (41). On the other hand, when the base seat (10) is pulled by a certain length and the base seat (10) is rotated by 90 degrees, the polygonal shaft (17) interlocking with the base seat (10) rotates, and the interlocking seat interlocking with the polyhedral shaft is rotated. (30) also rotates 90 degrees at the same time. The eccentric ring (35) is made of Teflon material and has wear resistance. When the eccentric ring (35) is rotated to an appropriate angle, the position is fixed by pressing against the inner wall of the outer tube (24) (see FIG. 5). In this way, the inner tube (24) and the outer tube (41) can be adjusted to easily perform a lengthy conversion. Furthermore, the present invention is applied to a telescopic tube coupling structure of an elliptical hollow outer tube (24) and an elliptical hollow inner tube (41), and has convenience during use.

[0014]

[Effect of the invention]

 The use of the telescopic tube coupling structure of the present invention has at least the following advantages. 1. The coupling structure can be applied to the elliptical hollow outer tube and the inner tube: the inner tube of the present invention is an elliptical hollow tube, which can be used in combination with the elliptical hollow outer tube; When the inner tube is pulled to a certain length with respect to the outer tube and the base seat is rotated, the polygonal shaft linked to the base seat rotates, and the linked seat linked to the polygonal shaft also rotates at the same time. By driving the eccentric wheel, the purpose of fixing the position by pressing against the inner wall of the outer tube is achieved. 2. Convenience in use: To operate the telescopic tube adopting the present invention, simply pull the inner tube to a certain length with respect to the outer tube and rotate the base seat by 90 degrees to rotate the eccentric ring. Has the convenience of pressing against the inner wall of the outer tube and being easily positioned.

[0015] The joint structure of the telescopic tube of the present invention is a novel creation, and the idea has substantial inventive step and novelty. The embodiments described above do not limit the scope of limitation of the present invention, but are improvements or modifications of details made based on the present invention.All those having the same effect as the present invention are It belongs to the claims.

[Brief description of the drawings]

FIG. 1 is a three-dimensional exploded view of the present invention.

FIG. 2 is an assembled vertical sectional view of the present invention.

FIG. 3 is an assembled horizontal sectional view of the present invention.

FIG. 4 is a view showing a horizontal operation section of the present invention.

FIG. 5 is a vertical operation sectional view of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Base seat 11 Hole 12 Spring 13 Chuck ball 14 Notch groove 15 Flange part 16 Polygon hole 17 Polygon shaft 20 Outer tube fixing seat 21 Round seat 22 Depression 23 Ellipsoid 24 Outer tube 25 Through hole 30 Interlocking seat 31 Polygonal hole 32 Eccentric part 33 Notch groove 34 Flange part 35 Eccentric ring 36 Circular hole 37 Rubber cover 40 Inner tube fixing seat 401 Ellipsoid 41 Inner tube

Claims (3)

[Utility model registration claims] An outer tube fixing seat can be fixedly mounted on an outer tube fixing seat, and the outer tube fixing seat can be installed on an upper end portion of the base portion. An interlocking seat is set up on a polygonal shaft inside the outer tube by passing upward through it, and a polyhedral shaft is provided with an interlocking portion above the interlocking seat. An eccentric ring attached to the interlocking portion on the interlocking seat, Eccentricity A rubber cover mounted on the ring, an inner pipe fixing seat which can be fixedly mounted on the interlocking seat, and has an inner pipe fixed at an upper end portion of the inner pipe fixing seat, wherein the inner pipe is fixed to the outer pipe to a certain length. When the base is pulled out and the base is rotated, the polygonal shaft at the center interlocks, and the interlocking interlocking seat also rotates at the same time, so the eccentric ring on the interlocking seat presses against the inner wall side of the outer tube, Telescopic tube coupling structure that can fix the position. 2. The method according to claim 1, wherein the outer tube is formed in an elliptical hollow shape and attached to an ellipsoid, and the inner tube is elliptical hollow and attached to an ellipsoid on an inner tube fixing seat.
The telescopic tube coupling structure according to claim 1. 3. The base portion is composed of a plurality of cylinders having different diameters, a hole is provided at an upper end of the cylinder having a maximum diameter, a spring is provided in the hole, and a chuck ball is provided on an upper portion of the spring. Is left, a plurality of recesses are provided on the bottom surface of the outer tube fixing seat to be fixed on the chuck ball, a polygonal through-hole is provided at the center of the interlocking seat, and the insertion of the polygonal shaft is provided, and 3. The telescopic tube coupling structure according to claim 1, wherein a notch groove or a flange portion is provided on the interlocking seat, and is passed through a circular through hole in the eccentric ring, and is attached to the inner pipe fixing seat by the flange portion. .