阅读说明：本技术 一种伸缩杆 (Telescopic rod ) 是由 钱峰 于 2020-07-02 设计创作，主要内容包括：本发明公开了一种伸缩杆,由一根以上的内管和一根以上的外管相互活动套接而成,所述内管在外管内能拉出或缩入,所述内管和外管的连接端分别设有承压件和固定件,所述承压件卡接于内管连接端,所述固定件卡接于外管连接端,所述承压件包括张力段和卡接段,所述张力段上设有张力槽,所述张力段包括圆柱段和圆锥段。本发明结构简单,安装操作方便,定位效果好,内外管拉出或缩入时,弹力张驰有度,使用效果好,且安装快捷,成本低。(The invention discloses a telescopic rod which is formed by movably sleeving more than one inner tube and more than one outer tube, wherein the inner tubes can be pulled out or retracted in the outer tubes, the connecting ends of the inner tubes and the outer tubes are respectively provided with a pressure-bearing piece and a fixing piece, the pressure-bearing piece is clamped at the connecting end of the inner tubes, the fixing piece is clamped at the connecting end of the outer tubes, the pressure-bearing piece comprises a tension section and a clamping section, the tension section is provided with a tension groove, and the tension section comprises a cylindrical section and a conical section. The invention has simple structure, convenient installation and operation, good positioning effect, strong elasticity relaxation degree when the inner pipe and the outer pipe are pulled out or retracted, good use effect, quick installation and low cost.)

1. The utility model provides a telescopic link, cup joints by the mutual activity of more than one inner tube (1) and more than one outer tube (2) and forms, inner tube (1) can pull out or retract its characterized in that in outer tube (2): the bearing device is characterized in that the connecting ends of the inner tube (1) and the outer tube (2) are respectively provided with a bearing part (3) and a fixing part (4), the bearing part (3) is connected to the connecting end of the inner tube (1), the fixing part (4) is connected to the connecting end of the outer tube (2), the bearing part (3) comprises a tension section (5) and a clamping section (6), a tension groove (7) is formed in the tension section (5), and the tension section (5) comprises a cylindrical section (12) and a conical section (13).

2. A telescopic rod according to claim 1, characterized in that: the tension grooves (7) are triangular, are two in number and are symmetrically arranged.

3. A telescopic rod according to claim 1, characterized in that: the inner pipe (1) and the outer pipe (2) are provided with positioning ribs I (8), the positioning ribs I (8) are concave on the outer surface of the pipe, and convex on the inner surface of the pipe.

4. A telescopic rod according to claim 3, characterized in that: and a positioning rib II (9) and a positioning rib III which are matched with the positioning rib I (8) in shape are respectively arranged on the pressure-bearing part (3) and the fixing part (4).

5. A telescopic rod according to claim 4, characterized in that: the tension groove (7) is arranged in the positioning rib II (9) of the pressure-bearing part (3).

6. A telescopic rod according to any one of claims 1 to 5, characterized in that: the inner pipe (1) and the outer pipe (2) are round pipes or polygonal pipes.

7. A telescopic rod according to any one of claims 1 to 5, characterized in that: be equipped with arch (10) on pressure-bearing piece (3) and mounting (4) respectively, be equipped with through-hole (11) that match with arch (10) on inner tube (1) and outer tube (2) respectively.

Technical Field

The invention relates to the technical field of telescopic devices, in particular to a telescopic rod.

Background

At present, the telescopic rod is widely used for various products, and common ones are a selfie stick, a telescopic clothes airing rod, a telescopic umbrella handle, a fishing rod, a mop, a telescopic electric fan and the like. The telescopic link has scalable, accomodate convenient, convenient to carry's characteristics, and the during operation can be elongated, makes it reach required length, satisfies the operation requirement, thereby can pack up when out of work and practice thrift the space, portable and deposit. But there are a great deal of problems in the location of current telescopic link, if the laminating has the multi-disc spacer between two movable tubes of telescopic link, the movable tube that is located the spacer inboard is the inner tube, and the movable tube that is located the spacer outside is the outer tube, and the spacer is through the flexible of its self elastic deformation in order to realize the flexible of telescopic link, nevertheless produces easily not hard up for a long time using, and the result of use is poor. Or a locking device is arranged between the two movable pipes of the telescopic rod, and the locking device is high in cost. And the two existing positioning structures are complex, and the installation and operation are troublesome.

Disclosure of Invention

The invention aims to solve the technical problem of providing a telescopic rod which is simple in structure, convenient to install and operate, good in positioning effect, good in using effect, quick to install and low in cost, and the elastic relaxation degree is high when the inner pipe and the outer pipe are pulled out or retracted.

The technical scheme adopted by the invention for solving the technical problem is as follows: the utility model provides a telescopic link, cup joints by the outer tube reciprocal activity more than one inner tube and more than one and forms, the inner tube can pull out or retract in the outer tube, the link of inner tube and outer tube is equipped with bearing spare and mounting respectively, bearing spare joint in inner tube connection end, the mounting joint is in outer tube connection end, bearing spare includes tension section and joint section, be equipped with the tension groove on the tension section, the tension section includes cylinder section and circular cone section.

Preferably, the tension grooves are triangular, two in number and symmetrically arranged.

As a further improvement, the inner pipe and the outer pipe are provided with positioning ribs I, the positioning ribs I are concave on the outer surface of the pipe, and the positioning ribs I are convex on the inner surface of the pipe.

As a further improvement, a positioning rib II and a positioning rib III which are matched with the positioning rib I in shape are respectively arranged on the pressure bearing part and the fixing part.

Preferably, the tension groove is arranged in the bearing part positioning rib II.

Preferably, the inner tube and the outer tube are circular tubes or polygonal tubes.

As a further improvement, the pressure-bearing part and the fixing part are respectively provided with a bulge, and the inner pipe and the outer pipe are respectively provided with a through hole matched with the bulge.

The invention has the advantages that the bearing part is designed into an integral pipe fitting and consists of a tension section and a clamping section, the tension section is provided with a triangular tension groove, the tension section comprises a cylindrical section and a conical section, the structure is simple, but the elastic relaxation degree can be realized when the inner pipe and the outer pipe are pulled out or retracted, a small force is needed when the inner pipe and the outer pipe are pulled out, the force used when the inner pipe and the outer pipe are retracted is slightly larger than the force used when the inner pipe and the outer pipe are pulled out, the telescopic rod is ensured to be used freely, the use effect is good, the installation is rapid, the integral cost is low, the large-scale.

Drawings

Fig. 1 is a schematic front view of an embodiment of the present invention.

Fig. 2 is a schematic top view of the embodiment of the invention.

Fig. 3 is a schematic structural view of a pressure-bearing member according to an embodiment of the present invention.

The invention is further described below with reference to the accompanying drawings.

Detailed Description