Three-section telescopic rod
A telescopic rod and rod rotation technology, applied in the direction of rod connection, connecting components, mechanical equipment, etc., can solve the problems of easy failure, high cost, complex production process, etc., and achieve the effect of convenient installation, high speed and simple structure
Active Publication Date: 2017-01-11
照彰实业(东莞)有限公司
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Problems solved by technology
[0003] The current three-section telescopic rod generally has a complicated structure
For example, the Chinese utility model patent with the application number of 200720046666.6 has a complex structure, and the realization of the three-section telescopic rod requires multiple splines. Keys are prone to deformation
If you do not pursue quality and strive to reduce costs, the complex structure of the three-section telescopic rod accessories is insufficient in strength and precision, and it is prone to failure during use; if you blindly pursue quality, it will lead to soaring production costs, which is not conducive to civilian promotion
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[0023] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.
[0024] Such as Figure 1-Figure 3 As shown, the three-section telescopic pole provided by the present invention includes a first pole 100, a second pole 200, and a third pole 300 arranged in a straight line, and the first pole 100 and the second pole 200 are tubular The inner wall of the first pole 100 and the outer wall of the second pole 200 are correspondingly provided with a first thread structure, the outer wall of the third pole 300 and the inner wall of the second pole 200 are correspondingly provided with a second thread structure, and the first The helical directions of the thread structure and the second thread structure are opposite; the three-section telescopic rod of the present invention also includes a position-limiting stru...
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The invention discloses a three-segment telescopic rod. The three-segment telescopic rod comprises a first branch rod, a second branch rod and a third branch rod which are arrayed in the linear direction, the first branch rod and the second branch rod are tubular, the inner wall of the first branch rod and the outer wall of the second branch rod are correspondingly provided with first threaded structures, the outer wall of the second branch rod and the inner wall of the second branch rod are correspondingly provided with second threaded structures, and the spiral direction of the first threaded structures is opposite to that of the second threaded structures; the three-segment telescopic rod further comprises a limiting structure for limiting rotation of the first branch rod and the third branch rod. As the first branch rod, the second branch rod and the third branch rod are connected through threads opposite in spiral direction, the three-segment telescopic rod is simple in structure and convenient to install, in the stretching or retracting process, the second branch rod is fixed in the vertical direction, and the first branch rod and the third branch rod move at the same time, so that the three-segment telescopic rod stretches or retracts fast and stably.
Description
technical field [0001] The invention relates to a telescopic rod, in particular to a three-section telescopic rod with a long extension length and a small shrinkage size. Background technique [0002] Compared with the two-section telescopic rod, the three-section telescopic rod has a smaller shrinkage size than the two-section telescopic rod under the same extension length due to one more telescopic rod. The extension length of the two-section telescopic rod is relatively long, and its effect is obvious, which can save space and is convenient to carry. [0003] The current three-section telescopic rod generally has a complex structure. For example, the Chinese utility model patent with the application number of 200720046666.6 has a complex structure, and the realization of the three-section telescopic rod requires multiple splines. The keys are easily deformed. If you do not pursue quality and strive to reduce costs, the three-section telescopic rod with complex structur...
Claims
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IPC IPC(8): F16B7/10
CPCF16B7/14
Inventor 朱江凡
Owner 照彰实业(东莞)有限公司