CN201100611Y

CN201100611Y - A flexing pole

Info

Publication number: CN201100611Y
Application number: CNU2007200590930U
Authority: CN
Inventors: 简建光
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-02
Filing date: 2007-11-02
Publication date: 2008-08-13
Anticipated expiration: 2017-11-02

Abstract

The utility model relates to an expansion link comprising more than two annular tubes, a steel conical head and a limit pin. The more than two annular tubes are mutually sleeved together, and a ring-shaped limit rib is arranged on one end of the annular tube with longer diameter, then a limit ring is arranged on one end of two adjacent annular tubes, two round holes are disposed on the limit ring, further cylinder pins which are arranged in the two round holes are connected with each other through a U-shaped striking flake or a spring. When the limit ring is slid to one end of the adjacent annular tubes, the cylinder pin is flipped out to block the sliding of the annular tubes, and the further sliding of the limit ring is blocked by the ring shaped limit rib, thereby the two adjacent annular tubes are fastened. Using the expansion link, the retraction of the annular tubes is avoided by the cylinder pin with the striking flake, and the expansion link is stiffened and fastened by the interference fit of the limit rib and the limit ring, then devices with various weights are supported without retraction, further the conical head is easily inserted in the mud, the package and transportation are processed after the retraction of the expansion link, which is economical and convenient.

Description

A kind of expansion link

Technical field

The utility model relates to a kind of bar, particularly a kind of expansion link that can be used for oil lamp, candle stick and household supplies.

Background technology

At present, existing expansion link kind is more on the market, and purposes is wider, and the product that has expansion link is also many, and is according to the purposes and the functional characteristics of each product, different for the type requirements and the structural design of expansion link.The oil lamp that is used for religious activities and illumination is inserted on the ground by a pole often, and oil lamp is installed in the top of pole, and used pole generally is fixing bamboo bar, rod or a metal tube of length.Because needing oil lamp to hold movable place and environment usually has nothing in common with each other, use the kind and the quantity of oil lamp more, required oil lamp bar is not only wanted energy load-bearing and enough solid, and kind is more, different in size, and it is comparatively inconvenient to make like this for the packing and the transportation of oil lamp bar.

The utility model content

At the deficiency of above existing oil lamp bar, the purpose of this utility model provides a kind of length and can regulate arbitrarily, and is enough solid and firm, and a kind of expansion link that can not bounce back during load-bearing.

The purpose of this utility model is achieved by the following technical solution:

A kind of expansion link, comprise the above sleeve pipe of two joints, the above sleeve pipe of two joints connects together mutually, the diameter of every sleeve pipe is unequal mutually, the less casing pipe sleeve of diameter is connected in the bigger sleeve pipe of diameter and can slides mutually, and the top of the lower end of the maximum sleeve pipe of diameter and the minimum sleeve pipe of diameter is provided with jockey; One end of the big sleeve pipe of described diameter is provided with the annular stop rib, and the diameter of annular stop rib is greater than the external diameter of adjacent casing; Be provided with spacing ring at diameter than an end of small casing, the external diameter of spacing ring has two circular holes greater than the annular stop rib on the adjacent casing on the sidewall of spacing ring, be respectively equipped with cylinder in two circular holes, and two cylinders link to each other by the U-shaped shell fragment; When spacing ring slided into an end of adjacent casing, the cylinder at U-shaped shell fragment two ends can eject, and the cylinder of ejection can stop the sleeve pipe retraction, and the annular stop rib can stop spacing ring further to slide, thereby two adjacent sleeve pipes are firm.

In a kind of expansion link of the utility model, being located at diameter is two cylinders than the spacer pin of small casing one end, and two cylinders link to each other by spring, have two circular holes on the sleeve pipe sidewall, and two cylinders can eject by two circular holes.

In a kind of expansion link of the utility model, described annular stop rib is by extrusion modling, and the diameter of annular stop rib is less than the diameter of sleeve pipe.

In a kind of expansion link of the utility model, described spacing ring is by welding or be riveted on an end of sleeve pipe, and two circular holes on the spacing ring sidewall are symmetry mutually.

In a kind of expansion link of the utility model, described spacing ring and annular stop rib are interference fit, and the annular stop rib can be fastening with spacing ring when stoping spacing ring further to slide.

In a kind of expansion link of the utility model, the described jockey that is located at maximum sleeve pipe lower end of diameter and the minimum cannula tip of diameter is a bolt.

In a kind of expansion link of the utility model, described expansion link also comprises nose cone, and nose cone is installed in the lower end of the maximum sleeve pipe of expansion link diameter by bolt.

The beneficial effects of the utility model are: by above structure as can be known, expansion link in use, spacer pin can stop sleeve pipe to slide, and the interference fit that adds upper limit rib and spacing ring can make expansion link very solid and firm, enough supports the device that all kinds of weight do not wait and can not bounce back; The steel nose cone of expansion link lower end can easily insert in the earth, the bolt that the expansion link top is provided with can connect oil lamp, candle stick or other member, pushes the straight pin of U-shaped shell fragment or both ends of the spring, can shrink expansion link, pack and transport after expansion link shrinks, not only economy but also convenient.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment:

Fig. 1 is the structural representation of the utility model embodiment one;

Fig. 2 is the structural representation of a sleeve pipe in the middle of the utility model embodiment one;

Fig. 3 is the structural representation of U-shaped shell fragment among the utility model embodiment one;

Fig. 4 is the part-structure cross-sectional schematic of the utility model embodiment two.

The specific embodiment

One of embodiment, as shown in Figures 1 to 4, a kind of expansion link comprises steel nose cone 1 and the above sleeve pipe of two joints, and sleeve pipe is a stainless steel material, the above sleeve pipe of two joints connects together mutually, the diameter of every sleeve pipe is unequal mutually, and the less casing pipe sleeve of diameter is connected in the bigger sleeve pipe of diameter and can slides mutually, and nose cone 1 is connected with the bolt 11 that is installed in the maximum sleeve pipe of diameter lower end, the top of the minimum sleeve pipe of diameter is equipped with bolt 12, can connect oil lamp or candle stick by bolt 12; One end of the big sleeve pipe of diameter is provided with annular stop rib 3, and the diameter of annular stop rib 3 has two circular holes 2 at annular stop rib 3 near on the tube wall of a middle side greater than the external diameter of adjacent casing; Diameter is provided with spacing ring 4 than an end of small casing, and the external diameter of spacing ring 4 is greater than the annular stop rib 3 on the adjacent casing, is respectively equipped with 51, two cylinders of cylinder 51 in 41, two circular holes 41 of two circular holes and links to each other by U-shaped shell fragment 5 having on the sidewall of spacing ring 4; When spacing ring 4 slided into an end of adjacent casing, the cylinder 51 at U-shaped shell fragment 5 two ends can snap in diameter than in two circular holes 2 on the big sleeve pipe, and annular stop rib 3 can stop spacing ring 4 further to slide, thereby two adjacent sleeve pipes are firm.

Among the embodiment of the present utility model, annular stop rib 3 is by extrusion modling, and the diameter of annular stop rib 3 is less than the diameter of sleeve pipe, and two circular holes 2 are symmetrical mutually on the tube wall.Spacing ring 4 is by welding or be riveted on an end of sleeve pipe, and two circular holes 41 on spacing ring 4 sidewalls are symmetry mutually; Spacing ring 4 is interference fit with annular stop rib 3, and annular stop rib 3 can be fastening with spacing ring 4 when stoping spacing ring 4 further to slide.

Two of embodiment, as shown in Figures 1 to 4, to be located at the sidewall that U-shaped shell fragment 5 in the spacing ring 4 and two circular holes 41 move on to sleeve pipe one end with reference to one of embodiment, U-shaped shell fragment 5 is changed into spring, two cylinders that are installed in both ends of the spring can eject by two circular holes 21 that the sleeve pipe sidewall has, other embodiment is identical with one of embodiment, the straight pin that ejects from circular hole 21 can stop the sleeve pipe retraction, annular stop rib 3 can be fastening with spacing ring 4 when stoping spacing ring 4 further to slide, thereby two adjacent sleeve pipes are firm.

A kind of expansion link of the utility model can also be applied to household supplies or other field, for example as telescopic flagpole; Nose cone 1 can also be replaced by handle, at the top of expansion link the receipts clothes hook be installed and can be used as telescopic receipts clothing bar, expansion link can bear bigger weight or impulsive force, can not bounce back, and is solid and firm.

Claims

1, a kind of expansion link, comprise the above sleeve pipe of two joints, the above sleeve pipe of two joints connects together mutually, the diameter of every sleeve pipe is unequal mutually, the less casing pipe sleeve of diameter is connected in the bigger sleeve pipe of diameter and can slides mutually, the top of the lower end of the maximum sleeve pipe of diameter and the minimum sleeve pipe of diameter is provided with jockey, it is characterized in that: an end of the big sleeve pipe of described diameter is provided with annular stop rib (3), and the diameter of annular stop rib (3) is greater than the external diameter of adjacent casing; Be provided with spacing ring (4) and spacer pin at diameter than an end of small casing, the external diameter of spacing ring (4) is greater than the annular stop rib (3) on the adjacent casing, when spacing ring (4) slides into an end of adjacent casing, spacer pin ejects by the hole that has on the sleeve pipe and can stop the sleeve pipe retraction, and annular stop rib (3) can stop spacing ring (4) further to slide.

2, a kind of expansion link according to claim 1, it is characterized in that: on the sidewall of spacing ring (4), have two circular holes (41), be respectively equipped with spacer pin in two circular holes (41), spacer pin is cylinder (51), and two cylinders (51) link to each other by U-shaped shell fragment (5).

3, a kind of expansion link according to claim 1, it is characterized in that: being located at diameter is two cylinders than the spacer pin of small casing one end, two cylinders link to each other by spring, have two circular holes (21) on the sleeve pipe sidewall, and two cylinders can eject by two circular holes (21).

4, a kind of expansion link according to claim 1 is characterized in that: described annular stop rib (3) is by extrusion modling, and the diameter of annular stop rib (3) is less than the diameter of sleeve pipe.

5, a kind of expansion link according to claim 1 is characterized in that: described spacing ring (4) is by welding or be riveted on an end of sleeve pipe, and two circular holes (41) on spacing ring (4) sidewall are symmetry mutually.

6, a kind of expansion link according to claim 1 is characterized in that: described spacing ring (4) is an interference fit with annular stop rib (3), and annular stop rib (3) can be fastening with spacing ring (4) when stoping spacing ring (4) further to slide.

7, a kind of expansion link according to claim 1 is characterized in that: the described jockey that is located at maximum sleeve pipe lower end of diameter and the minimum cannula tip of diameter is a bolt.

8, according to claim 1 and 7 described a kind of expansion links, it is characterized in that: described expansion link also comprises nose cone (1), and nose cone (1) is connected with the bolt (11) that is installed in the maximum sleeve pipe of diameter lower end.