Telescopic rod
A telescopic rod and telescopic control technology, which is applied to the connection of rods, connecting components, mechanical equipment, etc., can solve the problems of unstable structure, non-adjustable length of support rods, and inability to provide stable support force of telescopic rods, etc., to achieve stable support force , the effect of structural stability
Active Publication Date: 2016-03-02
BEIJING TIANZE ELECTRIC POWER GRP CO LTD
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Problems solved by technology
The support devices in the prior art all include support rods, but the length of such support rods is usually not adjustable. Even if the length is adjustable (such as ordinary telescopic rods), the telescopic rods cannot provide stable support due to their unstable structure. force
Method used
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[0030] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0031] Such as figure 1 As shown, the present invention discloses a telescopic rod, which includes an inner sleeve 2 and an outer sleeve 1 that are sheathed in each other; wherein, the first end of the outer sleeve 1 is provided with a stopper 5 (the first end is the figure 1 The upper end of the middle outer sleeve 1, and the lower end of the outer sleeve 1 in the figure is its second end); the first end of the inner sleeve 2 is located outside the outer sleeve 1 and extends out of the stopper 5, and its second end is located at the outer sleeve 1 (the first end and the second end of the inner sleeve 2 correspond to the first end and the second end of the outer sleeve 1 respectively); the inner sleeve 2 can move along the axial direction of the outer sleeve 1 so that its second One end can gradually move away from or gradually approach the limit portion 5, so as to...
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The invention provides a telescopic rod which comprises an inner sleeve and an outer sleeve with a limiting portion at the first end. The first end of the inner sleeve is located outside the outer sleeve and stretches out of the limiting portion, and the second end of the inner sleeve is located in the outer sleeve. The inner sleeve can move in the axial direction of the outer sleeve so that the first end of the inner sleeve can be gradually away from or close to the limiting portion. The limiting portion is used for limiting the inner sleeve so that the first end of the inner sleeve can be fixed relative to the position of the limiting portion, and limiting can be eliminated so that the inner sleeve can move relative to the outer sleeve. According to the telescopic rod, due to the fact that the limiting portion is arranged, the length of the part, stretching out of the outer sleeve, of the inner sleeve can be controlled, that is, the position of the inner sleeve relative to the outer sleeve can be fixed. When the limiting function of the limiting portion on the inner sleeve is not eliminated, at least the inner sleeve cannot move into the outer sleeve, and therefore the structure of the telescopic rod is stable. When the telescopic rod is applied to supporting an object, stable supporting force can be provided.
Description
technical field [0001] The invention relates to a telescopic rod, in particular to a telescopic rod which plays a supporting role and whose length can be adjusted mechanically. Background technique [0002] The high-speed rail catenary arm is a structural device installed on the upper end of the pillar to support the positioning device and suspend the catenary. It transmits the load suspended by the catenary to the pillar or other buildings; when the porcelain bottle on the high-speed rail catenary arm is damaged, It will cause the arm to sag, increase the tension of the catenary and cause a short circuit or leakage of electricity on the high-speed rail line. In order to ensure the normal passage of the train, the porcelain bottle on the arm must be replaced. The wrist arm is fixed on the pillar with bolt pins, nuts and cotter pins. The wrist arm itself is subject to the downward gravity and the tension of the catenary. These forces are all based on the bolt pins. The wrist...
Claims
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IPC IPC(8): F16B7/12
Inventor 于勇黄桂宏全伟
Owner BEIJING TIANZE ELECTRIC POWER GRP CO LTD