阅读说明：本技术 无管伸缩杆 (Pipeless telescopic rod ) 是由 王安伟 于 2019-12-18 设计创作，主要内容包括：一种无管伸缩杆装置,是类似钢卷尺的结构,将两根钢片并排卷绕在一个轴心上,封闭在一个壳体里,轴心转动钢片就可以伸长或者缩短,然后两根钢片通过一个转换头互相对应扭转90度,形成垂直的T形结构,这样两根钢片伸长以后就形成T形互相支撑的结构,缩短以后又变成并排卷绕在一个轴心上两根钢片,用本发明制作的照相机单脚架,最小收纳高度不高于70毫米。(A telescopic rod without tube is composed of a casing, two steel sheets wound around an axle and enclosed in said casing, a converting head for turning said two steel sheets by 90 deg, and a T-shaped supporting frame for supporting said two steel sheets, and a single camera stand made up by said invention and having a minimum height not higher than 70 mm.)

1. A pipeless telescopic rod is characterized in that an axis and a shifting wheel 1 are connected in a shell 2 through an axis stopping groove 12 and a stopping steel wire 9, a right steel sheet 4 and a left steel sheet 6 are wound on the axis 1 side by side, one end of each steel sheet is fixed on a steel sheet fixing groove 13 of the axis 1 through a screw, the other end of each steel sheet is mutually inserted into another steel sheet after being relatively twisted for 90 degrees through a conversion head 7, and then the steel sheets are connected together through a combination head 5.

2. The telescopic rod housing 2 of claim 1, further comprising a brake block 3, wherein the brake block 3 is pushed forward to press the steel plate to fix the rod, and pulled backward to release the steel plate to allow the rod to rotate freely.

3. The telescopic rod of claim 1, wherein the shaft and the thumb wheel 1 rotate counterclockwise to retract the steel sheet, the telescopic rod is shortened, and the telescopic rod is lengthened by pulling the coupling head 5 directly.

4. The pipe-free telescopic rod of claim 1 can be further provided with an electric motor on the thumb wheel 1, so that the electric motor can be realized.

5. The telescopic rod according to claim 1 may be further H-shaped or pi-shaped with 3 steel plates, or may be further mouth-shaped or other shape with 4 steel plates for increasing strength.

6. The steel sheet of the tubeless telescopic rod of claim 1 can be made of other materials such as graphite fiber and the like.

Technical Field

The invention relates to a telescopic rod, in particular to a pipeless telescopic rod device, and belongs to the technical field of novel mechanical mechanisms.

Background

At present, the known telescopic rod mechanism, such as a camera monopod, is formed by sleeving a small pipe by a large pipe, namely the accommodating height of the telescopic rod mechanism is the length of the longest pipe plus the length of a plurality of inner pipe joints, so that the minimum accommodating length of the telescopic rod mechanism is limited to be not less than 300 mm, and the minimum accommodating height of the camera monopod manufactured by the invention is not more than 70 mm.

Disclosure of Invention

The invention aims to provide a telescopic rod with the minimum accommodating height. In order to solve the technical problem, the invention provides a pipeless telescopic rod.

The invention relates to a pipeless telescopic rod, which is in a structure similar to a steel tape, two steel sheets are wound on an axle center side by side and are sealed in a shell, the axle center rotates to extend or shorten the steel sheets, then the two steel sheets are correspondingly twisted by 90 degrees through a conversion head to form a vertical T-shaped structure, so that the two steel sheets form a T-shaped structure which supports each other after being extended, and become two steel sheets wound on the axle center side by side after being shortened.

The invention has the technical effects that: the telescopic rod has the technical effects that the telescopic rod does not use a pipe, but adopts a steel sheet winding mode, so that the minimum storage height can be not higher than 70 mm or even smaller, and a so-called pocket mode is realized.

Drawings

FIG. 1; is an outline drawing when the telescopic rod without the tube is contracted.

FIG. 2; is an appearance drawing when the telescopic rod without the tube is extended.

FIG. 3; is an explosion diagram of a pipeless telescopic rod.

FIG. 4; is a twisting mode diagram of two steel sheets in the inner part of the pipeless telescopic rod.

Detailed Description

The concrete structure of the pipeless telescopic rod of the invention is described below according to the drawing; in fig. 1, 1 is a shaft center and a thumb wheel, 2 is a housing, 3 is a brake pad, 4 is a right steel piece, 5 is a coupling head, and 6 is a left steel piece.

FIG. 2; the appearance drawing is that the telescopic rod without the pipe is extended, 4 is a steel sheet on the right side, and 6 is a steel sheet on the left side.

FIG. 3; the device is an explosion diagram of a pipeless telescopic rod, 7 is a conversion head, 8 is a T-shaped outlet, 9 is a backstop steel wire, 10 is a groove in the center of a right steel sheet, 11 is a notch on the right side of a left steel sheet, 12 is an axis backstop groove, 13 is a steel sheet fixing groove, and 14 is a shell backstop groove.

FIG. 4; the twisting mode of the two steel sheets in the pipeless telescopic rod is shown, and the condition that the left steel sheet and the right steel sheet are wound on the axis and the condition that the two steel sheets are mutually inserted into each other after being twisted by 90 degrees can be seen.

The following describes a specific embodiment of the pipeless telescopic rod according to the drawings; the right steel sheet 4 and the left steel sheet 6 are wound on the shaft center 1 side by side, the top ends of the two steel sheets are fixed on the steel sheet fixing groove 13, a rectangular notch is formed in the center of one steel sheet, a corresponding rectangular notch is also formed in the edge, close to the other steel sheet, of the other steel sheet, and when the two steel sheets pass through the conversion head 7, the two steel sheets are twisted by 90 degrees relatively and are mutually inserted into the other steel sheet. Two steel sheets are connected to the combining head 5 through the converting head 7 and then fixed together, the two steel sheets are wound on the shaft center side by side after being retracted, the inner circle of the retaining steel wire 9 is clamped on the shaft center retaining groove 12, the outer circle of the steel wire 9 is clamped on the shell retaining groove 14 to prevent the shaft center from being separated from the shell, once the radial tension exceeds the clamping force of the steel wire, the shaft center can be separated from the shell, and the assembly and the maintenance are convenient.

When the brake block 3 is pushed forwards, the steel sheet is pressed to be fixed, and when the brake block is pulled backwards, the steel sheet is loosened to be free to rotate.

The steel sheet can be retracted by rotating the thumb wheel 1 anticlockwise, the telescopic rod is shortened, and the telescopic rod can be lengthened by directly pulling the joint head 5. The thumb wheel 1 may be additionally provided with a motor to realize electric driving.

In order to increase the strength, the steel plate can be formed into an H shape or a pi shape by 3 steel plates, and can be formed into a mouth shape or other shapes by 4 steel plates.

The pipeless telescopic rod of the invention has wide application, can be made into a camera monopod, a lamp bracket and a camouflage net support frame, and also can be made into a tripod by using 3 pipeless telescopic rods, and 4 pipeless telescopic rod groups of lifting platforms or elevators.