CN201599286U

CN201599286U - Threaded tube embedded pole length adjusting device

Info

Publication number: CN201599286U
Application number: CN200920180760XU
Authority: CN
Inventors: 沈卫军
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-11-26
Filing date: 2009-11-26
Publication date: 2010-10-06
Anticipated expiration: 2019-11-26

Abstract

The utility model relates to a threaded tube embedded pole length adjusting device, which comprises an outer tube (1), an inner tube (2) and a threaded tube (3), wherein the inner tube (2) is inserted into the outer tube (1), the inner wall of the inner tube (2) is fixedly connected with a nut (4), the threaded tube (3) is screwed inside the nut (4), and one end of the threaded tube (3) is arranged inside the inner tube (2) while the other end of the threaded tube (3) is arranged inside the outer tube (1). One end of the threaded tube (3) located inside the outer tube (1) is connected fixedly with a fixing component (5) connected fixedly with the outer tube (1). The threaded tube embedded pole length adjusting device has the advantages of simple structure, attractive appearance and wide using ranges.

Description

The built-in bar length regulating device of screwed pipe

(1) technical field

The utility model relates to a kind of bar length regulating device, especially relates to the built-in bar length regulating device of a kind of screwed pipe.

(2) background technique

At present, with fields such as daily living article such as steel pipe and fitness equipments, because wall spacing or heights of ceilings difference, thereby length-adjustable fixing device that can free adjustment length is widely used at Bath-curtain rod and pole dance; Simultaneously; be protection wall or ceiling board; can not it be fixed between two between the walls or ceiling board and the ground with screw etc. after adjustment is finished, but the tension force that produces when relying on it to regulate makes it with the friction of wall or the generation of ceiling board (ground) contacting point self be fixed.Such adjusting device has two kinds of structures usually:

A kind of is the length-adjustable device of internal thread structure commonly used, and as shown in Figure 3: it does internal thread at a thick steel pipe, and another steel tube end part is done outside thread, rotates steel pipe relatively, and its length just can change.The shortcoming of this structure maximum is that the wall thickness of that steel pipe outside must be thicker (because want tapping or put into the object of class nut), and in order to have long adjustable extent, need attack long screw thread, the big cost of difficulty of processing is higher, and the screw thread of extra heavy pipe inwall usually scratches the outer wall of tubule, not only influence outward appearance, and tubule scuffing place gets rusty easily, thereby influence its working life.

Another kind of device is a nut fore shaft adjusting device commonly used, and as shown in Figure 4: this device adopts the way that adds nut at the steel pipe port, and behind the employing nut screwing clamping, the friction that steel pipe produced in outer steel pipe pressed fixes length.This apparatus structure is simple, and cost is low, but locking nut is external, produces higher projection in two pipe joints, thereby can only use to the smooth place that does not require of tube-surface, has influenced the using scope of product.

(3) summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of simple in structure, appearance looks elegant and the wide built-in bar length regulating device of screwed pipe of using scope are provided.

The purpose of this utility model is achieved in that the built-in bar length regulating device of a kind of screwed pipe, and described device includes outer tube, interior pipe and screwed pipe; Pipe is inserted in outer tube in described, and described inner tube wall is fixedly connected with a nut, and described screwed pipe is spun in the nut, and described screwed pipe one end place in the pipe, the other end places in the outer tube.

The built-in bar length regulating device of the utility model screwed pipe, the end that described screwed pipe is positioned at outer tube is fixedly connected with a fixed block, and described fixed block is fixedlyed connected with outer tube.

The built-in bar length regulating device of the utility model screwed pipe, described outer tube bottom is connected with an outer end cap, and the end that described screwed pipe is positioned at outer tube is fixedlyed connected with outer end cap.

The beneficial effects of the utility model are:

Utilize the friction between built-in screwed pipe and the nut, after length adjustment is finished, energy is length that fixed memory is transferred well, simultaneously because the screwed pipe nut structure is well-known can bearing than big strength, inner and outer pipes two end pressures are big more, friction between the screwed pipe nut is also big more, thereby this device can be used at stressed utensils such as fitness equipments, and the linkage structure of screwed pipe nut is simple and easy to use simultaneously.And it is built-in spiro connection structures all, and tube-surface does not produce scratch in can not making, and make not only that product design is attractive in appearance, using scope enlarges, and have protected interior pipe, make it be difficult for getting rusty, working life lengthening.

(4) description of drawings

Fig. 1 is the utility model embodiment one schematic representation.

Fig. 2 is the utility model embodiment two schematic representation.

Fig. 3 is conventional bar length regulating device structural representation.

Fig. 4 is conventional bar length regulating device structural representation

Among the figure:

Outer tube 1, interior pipe 2, screwed pipe 3, nut 4, fixed block 5, inner end cap 6, outer end cap 7.

(5) embodiment

Embodiment one:

Referring to Fig. 1, the utility model relates to the built-in bar length regulating device of a kind of screwed pipe, includes outer tube 1, interior pipe 2 and screwed pipe 3; Pipe 2 is inserted in outer tube 1 in described, pipe 2 inwalls are fixedly connected with a nut 4 in described, described screwed pipe 3 is spun in the nut 4, and manage in 2 in described screwed pipe 3 one ends place, the other end places in the outer tube 1, the end that described screwed pipe 3 is positioned at outer tube 1 is fixedly connected with a fixed block 5, and described fixed block 5 is fixedlyed connected with outer tube 1; Pipe 2 roof anchorage are connected with an inner end cap 6 in described, and described outer tube 1 bottom is fixedly connected with an outer end cap 7.

Embodiment two:

Referring to Fig. 2, embodiment one is with embodiment one difference: described screwed pipe 3 is fixedlyed connected with outer end cap 7.

Claims

1. built-in bar length regulating device of screwed pipe, it is characterized in that: described device includes outer tube (1), interior pipe (2) and screwed pipe (3); Pipe (2) is inserted in outer tube (1) in described, described in pipe (2) inwall be fixedly connected with a nut (4), described screwed pipe (3) is spun in the nut (4), and described screwed pipe (3) one ends place in the interior pipe (2), the other end places in the outer tube (1).

2. the built-in bar length regulating device of a kind of according to claim 1 screwed pipe is characterized in that: the end that described screwed pipe (3) is positioned at outer tube (1) is fixedly connected with a fixed block (5), and described fixed block (5) is fixedlyed connected with outer tube (1).

3. the built-in bar length regulating device of a kind of according to claim 1 screwed pipe is characterized in that: described outer tube (1) bottom is connected with an outer end cap (7), and the end that described screwed pipe (3) is positioned at outer tube (1) is fixedlyed connected with outer end cap (7).