CN2044295U - 伸缩管紧固装置 - Google Patents

伸缩管紧固装置 Download PDF

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Publication number
CN2044295U
CN2044295U CN 89201084 CN89201084U CN2044295U CN 2044295 U CN2044295 U CN 2044295U CN 89201084 CN89201084 CN 89201084 CN 89201084 U CN89201084 U CN 89201084U CN 2044295 U CN2044295 U CN 2044295U
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China
Prior art keywords
tube
fastener
telescopic tube
voussoir
outer tube
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Withdrawn
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CN 89201084
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English (en)
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王琪
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Individual
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Individual
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Priority to CN 89201084 priority Critical patent/CN2044295U/zh
Publication of CN2044295U publication Critical patent/CN2044295U/zh
Withdrawn legal-status Critical Current

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Abstract

一种伸缩管紧固装置其特点在于当一根管在另一根直径大的管内上下伸缩到一定长度需被固定时使用,使它附合所需长度,便于使用、储存、携带、运输。伸缩管紧固装置改变过去加工螺纹或顶丝固定的方法,利用一个套管内孔和两个楔块的锥度便能迅速达到伸缩管固定的目的,加工简便,成本低,体积小。

Description

本实用新型是一种可伸缩的内外两管的紧固构件。
以往的紧固装置都是在外管的端头加工螺纹,壁厚不足加工螺纹的在端头加上一个带螺纹的套,另外制做一个内孔带螺纹的套管与端头的螺纹结合把伸缩的内管紧固住。另外就是在外管的端头打孔装一个顶丝把内管顶住。以上方法工艺复杂,使用不便,外形体积大,如落地灯架、落地话筒、钓鱼用抄网架都是这种结构。
本实用新型目的是要提供一种加工简便、成本低、体积小,并能迅速达到固定目的伸缩管紧固装置。
本实用新型的目的是这样实现的:制做一个内径有维度的套管套在外管的一端,在外管的端头加工一个长型的孔,孔内放一个与孔尺寸相一致同套管内径锥度一致的楔块,通过套管的移动,使楔块与内管卡紧以达到紧固目的。楔块的数量可以根据需要为一个或更多,可以在外管上任意分布。
本实用新型的结构由实施例及其附图给出。图1为该装置主视图,图中套管(1)楔块(2)外管(3)内管(4)图2为该装置处于紧固状态时的示意图。图3为具有两个楔块对称分布的紧固装置。
当外套(1)处在图1的位置时内径同楔块(2)有一定的间隙,内管(4)可以伸缩到任何所需长度。把套管(1)用手往右一推到图2所处位置,套管(1)的内径变小给楔块(2)一定的压力把内管(4)固定住,不会产生上下滑动,也不会转动。

Claims (3)

1、一种紧固可伸缩的双管的装置,它是由套管(1)内管(4)及套在其外管(3)构成,其特征在于外管的端部开有长孔,在孔中有一锥型楔块(2),在楔块及外管外套有一内孔为锥型的外套(1)。
2、根据权利要求1所述装置,其特征在于该外管上具有两个或两个以上长孔及楔块。
3、根据权利要求1或2所述装置,其特征在于外套(1)内孔的锥度与楔块(2)的锥度一致。
CN 89201084 1989-01-30 1989-01-30 伸缩管紧固装置 Withdrawn CN2044295U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 89201084 CN2044295U (zh) 1989-01-30 1989-01-30 伸缩管紧固装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 89201084 CN2044295U (zh) 1989-01-30 1989-01-30 伸缩管紧固装置

Publications (1)

Publication Number Publication Date
CN2044295U true CN2044295U (zh) 1989-09-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 89201084 Withdrawn CN2044295U (zh) 1989-01-30 1989-01-30 伸缩管紧固装置

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CN (1) CN2044295U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103446682A (zh) * 2012-05-30 2013-12-18 泰州市创新电子有限公司 伸缩通气管式楼宇火灾室内救生装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103446682A (zh) * 2012-05-30 2013-12-18 泰州市创新电子有限公司 伸缩通气管式楼宇火灾室内救生装置

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