CN2706385Y

CN2706385Y - Seat pipe of bicycle saddle cushion

Info

Publication number: CN2706385Y
Application number: CN 200420021401
Authority: CN
Inventors: 江芬恩
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-30
Filing date: 2004-03-30
Publication date: 2005-06-29
Anticipated expiration: 2014-03-30

Abstract

The utility model relates to a connecting pipe on a bicycle, in particular to the seat pipe of a bicycle saddle cushion, comprising a hollow shaft pipe whose top end is connected with a seat cushion and bottom end is connected with a connecting pipe. The hollow shaft pipe comprises an outer elastic layer and an inner rigid layer. The elastic layer of the hollow shaft pipe which is a hollow pipe body made of the carbon fibre material and the rigid layer of the hollow shaft pipe which is a hollow pipe body made of the aluminum or aluminum alloy material are equilong. The structure solves the technical problem of distortion when the existing seat pipe of a bicycle saddle cushion, which is made of the carbon fibre material, is clamped by a pipe clip or sheathed with a joint because of the poor intensity. The utility model provides the seat pipe of a bicycle saddle cushion with enough intensity and difficult distortion.

Description

A kind of seat pipe of bicycle saddle cushion

Technical field:

The utility model relates to the seat pipe of the connection pipe on the bicycle, particularly a kind of bicycle saddle cushion.

Background technology:

The seat of known bicycle saddle cushion below manages 1 as shown in Figure 1:

For reaching expendable weight and being rich in toughness and effect such as shock-absorbing, the dealer adopts the seat pipe 1 of being made the bicycle of hollow tube by carbon fibre material, because this seat pipe 1 top system connects a bicycle saddle cushion 7, and below socket one connection pipe 2, and this pipe 1 utilizes a pipe clamp 3 affixed with connection pipe 2 junctions, this pipe clamp 3 utilizes a screw rod 4 to pass pipe clamp 3 left and right each earhole 5, and it is sealed with a nut 6, make this pipe 1 be fixed on the connection pipe 2, by the earhole 5 of this pipe clamp 3 of degree of tightness, can adjust the length of this pipe 1.

Though carbon fibre material has splendid toughness and good shock-absorbing effect, and its material is light than metallic material, for more and more being particular about the light and handy bicycle of weight, be widely used on the bicycle part at present.Its shortcoming is that the intensity of material is not so good as metallic material, especially seat pipe 1 top is for a joint (not shown) group cover, be linked to bicycle saddle cushion 7 by this joint, be that pressure packs into this joint in seat pipe 1 top in assembly, but managing 1 insufficient strength because of known carbon fibre material seat, very easily breaks in sleeve pipe 1 top; The part that this pipe 1 clamps for pipe clamp 3, also the insufficient strength because of carbon fibre material produces distortion.

The utility model content:

The seat pipe of the bicycle saddle cushion of existing carbon fibre material to be solved in the utility model provides a kind of seat pipe with sufficient intensity and on-deformable bicycle saddle cushion because insufficient strength produces the technical matters of distortion by pipe clamp clamping and adaptor cup jointing the time.

For solving the problems of the technologies described above, the technical solution of the utility model is as follows:

A kind of seat pipe of bicycle saddle cushion comprises a hollow axle tube, and this central siphon top connects a seat cushion, and the bottom connects a connection pipe, it is characterized in that: this central siphon comprises the rigid layer of outer field elastic layer and internal layer.

The elastic layer and the rigid layer of this central siphon are isometric.

This elastic layer is the hollow tube that carbon fibre material is made, the hollow tube that rigid layer is made for the aluminum or aluminum alloy material.

The utlity model has following advantage:

Central siphon of the present utility model comprises the rigid layer of outer field elastic layer and internal layer, and its structure has guaranteed that it has enough intensity, is difficult for producing distortion when by pipe clamp clamping and adaptor cup jointing.

Description of drawings:

Fig. 1 is a structural representation of commonly using the seat pipe of bicycle saddle cushion.

Fig. 2 is a structural representation of the present utility model.

Fig. 3 is the part sectional view of hollow axle tube part of the present utility model.

The specific embodiment:

See also Fig. 2,3, the seat pipe of the utility model bicycle saddle cushion mainly comprises the central siphon 10 of a hollow, and these central siphon 10 tops connect seat cushion 20, this central siphon 10 below sockets one connection pipe 30 by a joint 40.This central siphon 10 mainly utilizes a pipe clamp 31 clamping connections with connection pipe 30 junctions, one screw rod 33 passes left and right earholes 32 of this pipe clamp 31 and sealed by a nut 34, central siphon is fixed on the connection pipe 30, adjust the elasticity of clamping by setting nut 34, and then adjust the length that central siphon 10 stretches out connection pipe 30.

This central siphon 10 comprises the outer elastomer layer 11 with suitable thickness, this elastic layer 11 is made for carbon fibre material, internal layer is the rigid layer 12 of a hollow tubular, this rigid layer is aluminium or aluminum alloy materials, this elastic layer 11 is isometric with rigid layer 12, so both guarantee the intensity of body, be unlikely to too much to increase its weight again.

Claims

1, a kind of seat pipe of bicycle saddle cushion, comprise a hollow axle tube (10), this central siphon (10) top connects a seat cushion (20), and the bottom connects a connection pipe (30), it is characterized in that: this central siphon (10) comprises the rigid layer (12) of outer field elastic layer (11) and internal layer.

2, the seat pipe of bicycle saddle cushion according to claim 1, it is characterized in that: the elastic layer (11) and the rigid layer (12) of this central siphon (10) are isometric.

3, the seat pipe of bicycle saddle cushion according to claim 1 and 2 is characterized in that: the hollow tube that this elastic layer (11) is made for carbon fibre material, the hollow tube that rigid layer (12) is made for the aluminum or aluminum alloy material.