CN211288361U

CN211288361U - Telescopic rod

Info

Publication number: CN211288361U
Application number: CN201922352115.8U
Authority: CN
Inventors: 何祥英
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-08-18
Anticipated expiration: 2029-12-24

Abstract

The utility model relates to a telescopic rod, it includes first pipe and second pipe, the telescopic rod still includes first setting element and second setting element, first setting element and second setting element are along the radial relative arrangement first setting element of first pipe including first portion and a plurality of second portion, the first outer wall of first portion is along the radial evagination of first pipe for the second outer wall of second portion, the first inner wall of first portion is along the radial evagination of first pipe for the second inner wall of second portion, the second setting element includes along its radial relative arrangement's location outer wall and location inner wall, the location inner wall is provided with two at least recesses along the direction of the axis of revolution of second setting element; the first positioning piece is a copper piece, and the second positioning piece is a plastic piece. First setting element and second setting element all can be through elastic deformation in order to realize the flexible of telescopic link, and, first setting element is the copper spare, and the second setting element is the plastic part, guarantees the assembly stability between the movable tube, improves the convenience that realizes stretching out and drawing back.

Description

Telescopic rod

Technical Field

The utility model belongs to the technical field of the telescoping device, concretely relates to telescopic link.

Background

At present, the telescopic rod is widely used for various products, such as an antenna, a selfie stick, a cleaning tool, and the like. The telescopic rod is characterized in that a plurality of positioning pieces are attached between the two movable pipes of the telescopic rod, the movable pipe positioned on the inner side of each positioning piece is an inner pipe, the movable pipe positioned on the outer side of each positioning piece is an outer pipe, and the positioning pieces stretch out and draw back through elastic deformation of the positioning pieces. However, the current spacers are made of the same material, and when the wall thickness of the movable tube is changed, the current spacers cannot be applied, so that the telescopic rod cannot stretch.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a do when activity pipe wall thickness changes and realize flexible telescopic link.

In order to achieve the main purpose, the utility model provides a telescopic rod comprises a first pipe and a second pipe, the first pipe is inserted into the second pipe, the first pipe and the second pipe are coaxially arranged, the telescopic rod further comprises a first positioning piece and a second positioning piece, the first positioning piece and the second positioning piece are oppositely arranged along the radial direction of the first pipe, the first positioning piece, the second positioning piece and the first pipe are coaxially arranged, and the first positioning piece and the second positioning piece are positioned at the same end part of the first pipe; the first positioning piece comprises a first part and a plurality of second parts, a first outer wall of the first part is protruded outwards along the radial direction of the first pipe relative to a second outer wall of the second part, a first inner wall of the first part is protruded outwards along the radial direction of the first pipe relative to a second inner wall of the second part, a first end and a second end of the first positioning piece are arranged oppositely along the rotary axis of the first pipe, and the second parts are arranged at the first end and the second end; the second positioning piece comprises a positioning outer wall and a positioning inner wall which are oppositely arranged along the radial direction of the second positioning piece, the positioning outer wall is a smooth curved surface, and the positioning inner wall is provided with at least two grooves along the direction of the rotation axis of the second positioning piece; the first positioning piece is a copper piece, and the second positioning piece is a plastic piece.

It can be seen by above-mentioned scheme that, the first outer wall of first portion is along the radial evagination of first pipe for the second outer wall of second portion, the first inner wall of first portion is along the radial evagination of first pipe for the second inner wall of second portion, the location inner wall is provided with two at least recesses along the axis of rotation direction of second setting element, first setting element and second setting element all can be through elastic deformation in order to realize the flexible of telescopic link, and, first setting element is the copper part, the second setting element is the plastic part, on the one hand, guarantee the assembly stability between the movable tube through the plastic part, on the other hand, guarantee the elasticity of setting element through the copper part and in order to further improve the convenience of realizing flexible.

Preferably, the first portion includes a positioning post extending from the first inner wall in a radial direction of the first positioning member.

Furthermore, the positioning column is a cylinder.

Furthermore, the top of the positioning column is a sphere.

Further, the number of the second portions is four.

Further, the first end is provided with two second portions.

Further, the two second portions at the first end are arranged symmetrically to each other.

Further, the second end is provided with two second portions.

Further, the two second portions at the second end are arranged symmetrically to each other.

Furthermore, the second positioning part comprises a positioning table, and the end part of the first pipe is abutted against the positioning table; the telescopic link still includes the stop collar, and the stop collar joint is in the first end of second pipe, and the inner wall butt of stop collar is in the outer wall of first pipe.

Drawings

The invention is further described with the aid of the accompanying drawings, in which, however, the embodiments do not constitute any limitation to the invention, and for those skilled in the art, other drawings may be obtained without inventive effort from the following drawings.

Fig. 1 is an exploded view of an embodiment of a telescopic rod according to the present invention.

Fig. 2 is a partially enlarged structural sectional view of an embodiment of the telescopic rod of the present invention.

Fig. 3 is a structural diagram of a first positioning member of an embodiment of the telescopic rod of the present invention.

Fig. 4 is a structural diagram of a second positioning element of an embodiment of the telescopic rod of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1 and 2, the telescopic rod 100 of the present embodiment includes a first tube 1 and a second tube 2, the first tube 1 and the second tube 2 are coaxially disposed, the first tube 1 and the second tube 2 are both movable tubes of the telescopic rod 100, and the number of the movable tubes of the telescopic rod 100 may be more than two. The first pipe 1 is inserted into the second pipe 2, and at this time, the first pipe 1 is an inner pipe and the second pipe 2 is an outer pipe. The telescopic rod 100 further comprises a first positioning part 3 and a second positioning part 5, the first positioning part 3 and the second positioning part 5 are arranged oppositely along the radial direction of the first pipe 1, the first positioning part 3, the second positioning part 5 and the first pipe 1 are coaxially arranged, the first positioning part 3 and the second positioning part 5 are located at the same end 6 of the first pipe 1, and the first positioning part 3 and the second positioning part 5 are uniformly distributed between the first pipe 1 and the second pipe 2. The first positioning member 3 is a copper member, and the second positioning member 5 is a plastic member.

Referring to fig. 1 to 3, the first positioning member 3 includes a first portion 7 and a plurality of second portions 8, a first outer wall 9 of the first portion 7 protrudes outward in a radial direction of the first pipe 1 relative to a second outer wall 10 of the second portion 8, a first inner wall 11 of the first portion 7 protrudes outward in the radial direction of the first pipe 1 relative to a second inner wall 12 of the second portion 8, a first end 15 and a second end 16 of the first positioning member 3 are arranged opposite to each other along a rotation axis of the first pipe 1, and the second portion 8 is arranged at each of the first end 15 and the second end 16.

The first portion 7 comprises a positioning post 13, and the positioning post 13 extends from the first inner wall 11 along the radial direction of the first positioning member 3. The positioning column 13 is a cylinder. The top of the positioning column 13 is a sphere, and the positioning column 13 is inserted into the first pipe 1.

The number of second portions 8 is four. The first end 15 is provided with two second portions 8, the two second portions 8 at the first end 15 being arranged symmetrically to each other. The second end 16 is provided with two second portions 8, the two second portions 8 at the second end 16 being arranged symmetrically to each other.

Referring to fig. 1, 2 and 4, the second positioning member 5 includes a positioning outer wall 19 and a positioning inner wall 20 arranged opposite to each other along a radial direction of the second positioning member, the positioning outer wall 19 is a smooth curved surface, and the positioning inner wall 20 is provided with at least two grooves 21 along a rotation axis direction of the second positioning member 5. The second positioning element 5 comprises a positioning table 22, the end of the first tube 1 abutting against the positioning table 22. The outer positioning wall 19 abuts against the inner wall of the second tube 2 and the inner positioning wall abuts against the outer wall of the first tube 1.

The telescopic rod 100 further comprises a limiting sleeve 23, the limiting sleeve 23 is connected to the first end of the second pipe 2 in a clamping manner, and the inner wall of the limiting sleeve 23 abuts against the outer wall of the first pipe 1.

The first outer wall of first portion 7 is for the radial evagination of the second outer wall of second portion 8 along first pipe 1, the first inner wall of first portion 7 is for the second inner wall of second portion 8 along the radial evagination of first pipe 1, location inner wall 20 is provided with two at least recesses along the axis of rotation direction of second setting element 5, first setting element 3 and second setting element 5 all can be through elastic deformation in order to realize the flexible of telescopic link 100, and, first setting element 3 is the copper part, second setting element 5 is the plastic part, on the one hand, guarantee the assembly stability between the movable pipe through the plastic part, on the other hand, guarantee the elasticity of setting element through the copper part in order to further improve the convenience of realizing flexible.

When the movable pipes are changed from copper pipes and steel pipes into aluminum pipes, the wall thickness of the movable pipes is increased along with the increase of the aluminum material because of the softness of the aluminum material, the gap between two movable pipes adjacent to each other along the radial direction of the movable pipes is increased from 0.15-0.2mm to more than 0.4mm, at the moment, the first outer wall of the first part 7 protrudes outwards along the radial direction of the first pipe 1 relative to the second outer wall of the second part 8, the first inner wall of the first part 7 protrudes outwards along the radial direction of the first pipe 1 relative to the second inner wall of the second part 8, the positioning inner wall 20 is provided with at least two grooves along the direction of the rotation axis of the second positioning part 5, the first positioning part 3 is a copper part, the second positioning part 5 is a plastic part, and therefore the telescopic rod 100.

The above embodiment is only the preferred embodiment of the present invention, and in practical application, the present invention has more changes, for example, when the number of the movable tubes of the telescopic rod 100 is more than two, the second tube 2 is inserted into another movable tube 24, and at this time, the second tube 2 is an inner tube relative to the movable tube 24. The second end of the second pipe 2 is provided with a first positioning element 3 and a second positioning element 5, the first positioning element 3 at the second end and the first positioning element 3 at the first pipe 1 are arranged oppositely along the radial direction of the first pipe 1, and the second positioning element 5 at the second end and the second positioning element 5 at the first pipe 1 are arranged oppositely along the radial direction of the first pipe 1. Therefore, along two adjacent movable pipes in the direction of the rotation axis of the first pipe 1, the first positioning member 3 of the inner pipe and the first positioning member 3 of the outer pipe are oppositely arranged along the radial direction of the first pipe, and the second positioning member 5 of the inner pipe and the second positioning member 5 of the outer pipe are oppositely arranged along the radial direction of the first pipe.

Finally, it should be emphasized that the present invention is not limited to the above-described embodiments, but only to the preferred embodiments of the invention, and the invention is not limited to the above-described embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a telescopic link, includes first pipe and second pipe, first pipe is inserted and is located the second pipe, first pipe with the second pipe is coaxial setting, its characterized in that:

the telescopic rod further comprises a first positioning piece and a second positioning piece, the first positioning piece and the second positioning piece are oppositely arranged along the radial direction of the first pipe, the first positioning piece, the second positioning piece and the first pipe are coaxially arranged, and the first positioning piece and the second positioning piece are positioned at the same end part of the first pipe;

the first positioning piece comprises a first part and a plurality of second parts, a first outer wall of the first part is convex relative to a second outer wall of the second part along the radial direction of the first pipe, a first inner wall of the first part is convex relative to a second inner wall of the second part along the radial direction of the first pipe, a first end and a second end of the first positioning piece are arranged oppositely along the rotation axis of the first pipe, and the second parts are arranged at the first end and the second end;

the second positioning piece comprises a positioning outer wall and a positioning inner wall which are oppositely arranged along the radial direction of the second positioning piece, the positioning outer wall is a smooth curved surface, and the positioning inner wall is provided with at least two grooves along the direction of the rotation axis of the second positioning piece;

the first positioning piece is a copper piece, and the second positioning piece is a plastic piece.

2. A telescopic rod according to claim 1, characterized in that:

the first portion includes a locating post extending radially from the first inner wall along the first locating member.

3. A telescopic rod according to claim 2, characterized in that:

the positioning column is a cylinder.

4. A telescopic rod according to claim 3, characterized in that:

the top of the positioning column is a sphere.

5. A telescopic rod according to claim 4, characterized in that:

the number of the second portions is four.

6. A telescopic rod according to claim 5, characterized in that:

the first end is provided with two of the second portions.

7. The telescopic rod according to claim 6, wherein:

the two second portions at the first end are arranged symmetrically to each other.

8. The telescopic rod according to claim 7, wherein:

the second end is provided with two of the second portions.

9. The telescopic rod of claim 8, wherein:

the two second portions at the second end are arranged symmetrically to each other.

10. A telescopic rod according to any one of claims 1 to 9, characterized in that:

the second positioning part comprises a positioning table, and the end part of the first pipe is abutted against the positioning table;

the telescopic rod further comprises a limiting sleeve, the limiting sleeve is clamped at the first end of the second pipe, and the inner wall of the limiting sleeve is abutted to the outer wall of the first pipe.