CN213393025U

CN213393025U - Telescopic rod

Info

Publication number: CN213393025U
Application number: CN202021927878.7U
Authority: CN
Inventors: 钱峰
Original assignee: Haining Fengda Electronics Co ltd
Current assignee: Haining Fengda Electronics Co.,Ltd.
Priority date: 2020-07-02
Filing date: 2020-09-07
Publication date: 2021-06-08
Anticipated expiration: 2030-09-07

Abstract

The utility model discloses a telescopic link is cup jointed by the inner tube more than and the outer tube reciprocal activity more than and is formed, 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 is in the inner tube link end, the mounting joint is in the outer tube link end, bearing spare includes tension section and joint section, be equipped with the tension groove in the tension section, the tension section includes cylinder section and circular cone section. The utility model discloses simple structure, installation convenient operation, location effect is good, and when interior outer tube pulled out or retracted, elasticity relaxation degree had, and tensile back stability is better, excellent in use effect, and the installation is swift, and is with low costs.

Description

Telescopic rod

Technical Field

The utility model relates to a telescoping device technical field, concretely relates to telescopic link.

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.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a telescopic link is provided, simple structure, installation convenient operation, location effect is good, and when interior outer tube pulled out or retracted, elasticity relaxation degree had, and tensile back stability is better, excellent in use effect, and the installation is swift, and is with low costs.

The utility model provides a technical scheme that technical problem adopted is: 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.

As a further improvement, the end part of the tension section is provided with a convex ring, the height b of the convex ring is 0.03-0.15 mm, and the width a of the convex ring is 0.5-1.0 mm.

As a further improvement, the end part of the fixing part is provided with a necking, the height d of the necking is 0.03-0.15 mm, and the width difference c between the necking and the fixing part is 0.5-1.0 mm.

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 utility model has the beneficial effects that the bearing part is designed into integral type pipe fitting, constitute by tension section and joint section, be equipped with triangle-shaped tension groove on the tension section, the tension section includes cylinder section and circular cone section, moreover, the steam generator is simple in structure, but when can realizing that the inside and outside pipe pulls out or contracts, elasticity relaxation degree, need use less power during the pull-out can, the power that uses when contracting than when pulling out is slightly bigger, guarantee that the telescopic link uses freely, tensile back stability is better, excellent in use effect, and the installation is swift, overall cost is low, mass production on a large scale, stable performance. The end part of the tension section is provided with a convex ring, so that the stretched material has a good backstopping effect; the end part of the fixing piece is provided with a necking, so that the stability between the inner pipe and the outer pipe is better after stretching.

Drawings

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

Fig. 2 is a schematic top view of embodiment 1 of the present invention.

Fig. 3 is a schematic structural view of a pressure-bearing member according to embodiment 1 of the present invention.

Fig. 4 is a schematic front view of embodiment 2 of the present invention.

Fig. 5 is a schematic structural view of a pressure-bearing member according to embodiment 2 of the present invention.

Fig. 6 is a schematic structural view of a fixing member according to embodiment 2 of the present invention.

The present invention will be further explained with reference to the accompanying drawings.

Detailed Description

Example 1: referring to fig. 1, 2 and 3, the telescopic rod is formed by movably sleeving more than one inner tube 1 and more than one outer tube 2, wherein the inner tube 1 and the outer tube 2 are circular tubes. Inner tube 1 can pull out or retract in outer tube 2, the link of inner tube 1 and outer tube 2 is equipped with bearing piece 3 and mounting 4 respectively, bearing piece 3 joint in inner tube 1 link, 4 joints of mounting are in outer tube 2 link, bearing piece 3 includes tension section 5 and joint section 6, be equipped with tension groove 7 on the tension section 5, tension groove 7 is triangle-shaped, and quantity is two, is the symmetry setting, sets up in 3 location muscle II 9 of bearing piece, the tension section includes cylinder section 12 and circular cone section 13. And the inner pipe 1 and the outer pipe 2 are provided with positioning ribs I8, and the positioning ribs I8 are concave on the outer surface of the pipe and convex on the inner surface of the pipe. And a positioning rib II 9 and a positioning rib III which are matched with the positioning rib I8 in shape are respectively arranged on the pressure-bearing part 3 and the fixing part 4. The pressure-bearing part 3 and the fixing part 4 are respectively provided with a bulge 10, and the inner tube 1 and the outer tube 2 are respectively provided with a through hole 11 matched with the bulge 10.

Example 2: referring to fig. 4, 5 and 6, the second telescopic rod is formed by movably sleeving more than one inner tube 1 and more than one outer tube 2; the link of inner tube 1 and outer tube 2 is equipped with bearing piece 3 and mounting 4 respectively, bearing piece 3 includes tension section 5 and

joint section

6, 5 tip in tension section are equipped with protruding circle 14, protruding 14 height b of circle are 0.05mm, and width an is 0.6 mm. The end of the fixing piece 4 is provided with a necking 15, the height d of the necking 15 is 0.05mm, and the width difference c between the necking 15 and the fixing piece 4 is 0.5 mm. The rest is the same as in example 1.

Example 3: the third kind of telescopic link is cup jointed by the inner tube more than one and the outer tube activity each other more than one and is formed, the link of inner tube 1 and outer tube 2 is equipped with pressure-bearing spare 3 and mounting 4 respectively, pressure-bearing spare 3 includes tension section 5 and joint section 6, tension section 5 tip is equipped with protruding circle 14, protruding circle 14 height b is 0.1mm, and width an is 1.0 mm. The end part of the fixing part 4 is provided with a necking 15, the height d of the necking 15 is 0.08mm, and the width difference c between the necking 15 and the fixing part 4 is 0.8 mm. The rest is the same as in example 2.

Example 4: the fourth telescopic rod is formed by sleeving more than one inner tube and more than one outer tube in a movable mode, and the inner tube and the outer tube are octagonal tubes. The rest is the same as in example 1.

Example 5: the fifth telescopic rod is formed by sleeving more than one inner tube and more than one outer tube in a movable manner, and the inner tube and the outer tube are decagonal tubes. The rest is the same as in example 2.

Claims

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 end part of the tension section (5) is provided with a convex ring (14), the height b of the convex ring (14) is 0.03-0.15 mm, and the width a is 0.5-1.0 mm.

3. A telescopic rod according to claim 1, characterized in that: the fixing piece (4) tip is equipped with throat (15), throat (15) height d is 0.03 ~ 0.15mm, and the width difference c between throat (15) and fixing piece (4) is 0.5 ~ 1.0 mm.

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

5. 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.

6. A telescopic rod according to claim 5, 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).

7. A telescopic rod according to claim 6, characterized in that: the tension groove (7) is arranged in the positioning rib II (9) of the pressure-bearing part (3).

8. A telescopic rod according to any one of claims 1 to 7, characterized in that: the inner pipe (1) and the outer pipe (2) are round pipes or polygonal pipes.

9. A telescopic rod according to any one of claims 1 to 7, 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.