CN2088178U - Position-locking device of telescope rod - Google Patents

Abstract

The utility model relates to a positioning device for a telescopic rod of which the extended length can be adjusted and can be fixed. The utility model which is used as a sheathed piece for a rod and a pipe is composed of a fastening spring, a spring, an outer sleeve, a fixed sleeve and a ball, wherein, the fixed sleeve is arranged on the end of the pipe, and the telescopic rod is inserted in the inner hole of the fixed sleeve; the ball, the spring and the fastening spring are arranged on the fixed sleeve of which the outside is provided with an external sleeve. The utility model is characterized in that the extended length of the telescopic rod can be adjusted by hands without any tool and can be fixed, and the outside of the telescopic rod is not provided with obstacles like screw nuts, etc. The utility model has the advantages of convenient operation, long service life and beautiful appearance, and is used to adjust and fix height for the telescopic support rod of the mosquito net of an iron bed for a patient, the telescopic support rod for a French fan, etc.

Description

Position-locking device of telescope rod

The utility model belongs to haberdashery and hardware.

Existing bar, pipe box component, after the extrusion of bar is adjusted, be to adopt both to be fixed at the radial screw of tube end, as the mosquito net montant of hospital patient bed, flooring fan pole etc., all adopt this means of fixation after highly mixing up, the shortcoming of this device is: 1, adopt standard screws without a head or that head is less, then to use screw-driver or spanner just can finish, use inconvenient, if adopt plate-like or ring-type enlarged head screw, though can finish with hand without instrument, because head is big, become obstacle, not attractive in appearance yet; 2, screw often uses, and the sliding easily tooth of the screw thread of screw screw causes and can't use, and working life is short.

The purpose of this utility model is to provide a kind of flexible rod positioning device easy to use, durable in use, attractive in appearance.

The utility model is the flexible rod that adopts multistage annular groove, can skid off or implant that the ball orientation type of annular groove achieves the goal.

Further specify below in conjunction with accompanying drawing:

Accompanying drawing is this device longitudinal section.

With reference to accompanying drawing, this device is made up of jump ring (2), spring (3), overcoat (4), fixed cover (5) and ball (6). Fixed cover (5) bottom is fixed on pipe (7) end inner face or outside, the bottom has the expansion link (1) of the alternate arc-shaped ring groove of multiple tracks (8) to inject fixed cover (5) endoporus, fixed cover (5) and pipe (7) have 2～4 radial symmetric or the uniform circular hole that aligns, and expansion link (1) has one annular groove and circular hole to align. Ball (6) is positioned in the circular hole, a part matches with annular groove (8), fixed cover (5) top is neck, suit upper spring (3), overcoat (4) middle part is big, and top and the bottom are little, the middle and lower part is sleeved on pipe (7) or fixed cover (5) outside, top covers spring (3), and overcoat (4) upper surface is annular, on Face engages with jump ring (3) upper end in being installed in fixed cover (5) end annular groove.

Operation principle: press overcoat (4) with hand, when overcoat center during in ball (6) position, just can draw or press expansion link (1), and make ball withdraw from the expansion link arc-shaped ring groove of former cooperation, when another road annular groove arrives the ball position, decontrol hand, overcoat (4) moves under spring (3) elastic force effect, and the bottom makes ball engage and expansion link is fixed with this road annular groove.

Characteristics of the present utility model are: need not any instrument, be the extension elongation of capable of regulating expansion link with hand, and it is fixed, easy to use, long service life, the outside does not have a first-class barrier of screw, attractive in appearance, and it is suitable for the height adjustment of iron bed mosquito net telescopic strut that hospital patient uses, ground electric fan telescopic strut etc. with fixing.

Claims (1)

1. A kind of bar that is used for, the pipe box component, the extrusion adjustment of bar and fixing flexible rod positioning device thereof, it is characterized in that this device is by jump ring (2), spring (3), overcoat (4), fixed cover (5) and ball (6) are formed, fixed cover (5) bottom is fixed on pipe (7) end inner face or outside, the bottom has the flexible rod (1) of the alternate arc-shaped ring groove of multiple tracks (8) to inject fixed cover (5) endoporus, fixed cover (5) and pipe (7) have 2～4 radial symmetric or the uniform circular hole that aligns, flexible rod (1) has one annular groove and circular hole to align, ball (6) is positioned in the circular hole, a part is coincide with annular groove (8), fixed cover (5) top is neck, suit upper spring (3), overcoat (4) middle part is big, top and the bottom are little, and the middle and lower part is sleeved on the outside of pipe (7) or fixed cover (5), and top covers spring (3), overcoat (4) upper-end surface be the annular, above be installed in fixed cover (5) end annular groove in jump ring (2) engage.

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