CN202597357U

CN202597357U - Telescopic rod

Info

Publication number: CN202597357U
Application number: CN 201220165216
Authority: CN
Inventors: 黄盛华
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-04-18
Filing date: 2012-04-18
Publication date: 2012-12-12
Anticipated expiration: 2022-04-18

Abstract

The utility model relates to a telescopic rod connected through an expansion device. The expansion device is arranged between a core rod and a sleeve rod, the expansion device comprises an ejecting core and an expansion sleeve sheathed outside the ejecting core, the ejecting core comprises an ejecting cap and a tapered rod arranged below the ejecting cap, a thread is arranged on the tapered rod, an internal thread matched with the thread on the tapered rod is arranged on the inner side wall of the expansion sleeve, and a through breach is longitudinally formed on the side wall of the expansion sleeve. The telescopic rod disclosed by the utility model is connected through the expansion device, two telescopic rods which are connected can be fastened and connected by matching with the threads for rotation, and the telescopic rod has the advantages of no gaps, simple structure, convenience in operation, better elasticity and toughness, difficulty in causing fracture and long service life.

Description

Flexible rod

Technical field

The utility model relates to a kind of flexible rod that connects through belt tensioner.

Background technique

At present, but existing peg has all adopted the flexible rod of rapid adjustment rod member length, and this structure is that two connecting tubes are arranged; The termination of one of them pipe inserts in another pipe, realizes stretching through tightening the nut that is arranged on the outer sleeve, and this flexible rod is when changing length; Must unscrew the nut of outer sleeve earlier; Could extract inner sleeve to needed length out, the nut of screwing again then, therefore cumbersome.In addition, because turning repeatedly of nut very easily worn and torn, in case sliding tooth, flexible rod has just lost effect fully, and therefore, working life is shorter.

The model utility content

The technical problem that the utility model will solve is: for overcoming the problem of above-mentioned existence, a kind of flexible rod that has belt tensioner simple in structure, easy to use is provided.

The utility model solves the technological scheme that its technical problem adopted: a kind of flexible rod, comprise core bar and loop bar, and be provided with belt tensioner between described core bar and the loop bar.

Further; Described belt tensioner comprises plunger tip and is set in the outside ringfeder pipe of plunger tip; The tapered rod that described plunger tip comprises the top cap and is arranged on cap below, top; Described tapered rod is provided with screw thread, described ringfeder pipe madial wall have with said tapered rod on the internal thread of threads engaged, described ringfeder pipe sidewall vertically offers a logical gap.

Further, offer the HALF OPENING of at least one open upper end lower end closed on the described ringfeder pipe.

The beneficial effect of the utility model is that the flexible rod of the utility model connects through belt tensioner, only needs the matching thread rotation to guarantee that the flexible rod that two velamens connect is fastenedly connected; Do not stay the slit; Simple in structure, easy to operate, and have elasticity and toughness preferably; Be difficult for causing fracture, long service life.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Fig. 1 is the utility model assembly structure schematic representation.

Fig. 2 is the utility model locking state structural representation.

1. core bars among the figure, 2. loop bar, 3. plunger tip, 3-1. top cap, 3-2. tapered rod, 3-3. screw thread, 4. ringfeder pipe, 4-1. gap, 4-2. HALF OPENING.

Embodiment

Combine accompanying drawing that the utility model is done further detailed explanation now.These accompanying drawings are the schematic representation of simplification, the basic structure of the utility model only is described in a schematic way, so it only show the formation relevant with the utility model.

Like Fig. 1, flexible rod shown in Figure 2, comprise core bar 1 and loop bar 2, be provided with belt tensioner between core bar 1 and the loop bar 2.The ringfeder pipe 4 that belt tensioner comprises plunger tip 3 and is set in plunger tip 3 outsides; The tapered rod 3-2 that plunger tip 3 comprises top cap 3-1 and is arranged on top cap 3-1 below; Tapered rod 3-2 is provided with screw thread 3-3; Ringfeder pipe 4 madial walls have with tapered rod 3-2 on the internal thread that matches of screw thread 3-3, ringfeder pipe 4 sidewalls vertically offer a logical gap 4-1.Offer the HALF OPENING 4-2 of two open upper end lower end closed on the ringfeder pipe 4.Thereby strutting ringfeder pipe 4, the rotation of HALF OPENING 4-2 through internal thread play position-limiting action.Secondly, for elasticity and the toughness that improves this belt tensioner, Gu plunger tip 3 and ringfeder pipe 4 are adopted the polypropylene plastics material.

During use plunger tip 3 is installed on the loop bar 2; Ringfeder pipe 4 is installed on the core bar 1, when being used for being connected of loop bar 2 and core bar 1, only needs to cooperate internal threads and screw thread 3-3 on the plunger tip 3 to rotate ringfeder pipe 4; Can this belt tensioner be withstood core bar 1, thereby play the effect of fixed connection.

With above-mentioned desirable embodiment according to the utility model is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this model utility technological thought.The technical scope of this model utility is not limited to the content on the specification, must confirm its technical scope according to the claim scope.

Claims

1. a flexible rod comprises core bar (1) and loop bar (2), it is characterized in that: be provided with belt tensioner between described core bar (1) and the loop bar (2).

2. flexible rod according to claim 1; It is characterized in that: described belt tensioner comprises plunger tip (3) and is set in the outside ringfeder pipe (4) of plunger tip (3); The tapered rod (3-2) that described plunger tip (3) comprises top cap (3-1) and is arranged on top cap (3-1) below; Described tapered rod (3-2) is provided with screw thread (3-3); Described ringfeder pipe (4) madial wall have with tapered rod (3-2) on the internal thread that matches of screw thread (3-3), described ringfeder pipe (4) sidewall vertically offers a logical gap (4-1).

3. flexible rod according to claim 2 is characterized in that: the HALF OPENING (4-2) that offers at least one open upper end lower end closed on the described ringfeder pipe (4).