CN201268352Y

CN201268352Y - Pipe fittings strengthening structure

Info

Publication number: CN201268352Y
Application number: CNU200820075399XU
Authority: CN
Inventors: 陈潮湖
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-21
Filing date: 2008-07-21
Publication date: 2009-07-08
Anticipated expiration: 2018-07-21

Abstract

The utility model relates to a pipe fitting reinforcing structure which mainly comprises a pipe fitting and a reinforcer, wherein the pipe fitting is hollow, and a clamping section is arranged in the pipe fitting; the reinforcer has uniform thickness, is arranged in the clamping section of the pipe fitting and is aligned with the inside diameter of the pipe fitting, lead angles are respectively arranged at both ends of the reinforcer, the hardness of the reinforcer is smaller than the hardness of the pipe fitting, and the thickness of the reinforcer is smaller than or equals to the thickness of the pipe fitting. By the reinforcer arranged in the clamping section, the stress of a clamping piece to the pipe fitting can be dispersed to the reinforcer without increasing the thickness of the pipe fitting and even decreasing the thickness of the pipe fitting so as to achieve the aims of light weight and high strength.

Description

The pipe fitting reinforced structure

Technical field

The utility model relates to a kind of pipe fitting reinforced structure, relates in particular to a kind of high strength and lightweight advantage and simply constructed pipe fitting reinforced structure of having concurrently.

Background technology

Have a considerable amount of fitting structures in the bicycle structure, and fitting structure is directly relevant with the intensity and the weight of bicycle, and when needs high strength, common practices is the thickness raising with pipe fitting, though intensity increases, but also relatively gain in weight, maybe when the needs lightweight, common practices is that pipe fitting thickness is reduced, but intensity also relatively reduces, so, how between high strength and lightweight, to find optimization, really for fitting structure design in an important knowledge.

See also Application No. 10/771,580 " Bicycle seat post " patent, a kind of seat bar that is used for bicycle, be single structure, and provide the clamping piece on the seat pipe that a stress release region is used for being reduced in bicycle rack to cause possible damage, the seat bar may be defined as a tubular portion and a head part, tubular portion comprises an at least one circular circumference zone and a clamped areas, this clamped areas has a periphery, this periphery comprises a circular face and a pressure release face, and this pressure release face can be plane or arc; Existing structure utilizes a pressure release face to reduce the destruction that clamping piece causes, but causes the pipe fitting integral thickness inhomogeneous, produces stress concentration at the thickness intersection easily on the contrary, so existing structure can not reduce the destruction that clamping piece causes.

The utility model content

Technical problem underlying to be solved in the utility model is, overcomes the above-mentioned defective that prior art exists, and a kind of pipe fitting reinforced structure is provided, and has high strength and lightweight advantage concurrently.

The technical scheme that its technical matters that solves the utility model adopts is:

A kind of pipe fitting reinforced structure is characterized in that, it mainly comprises a pipe fitting and a stiffener, and wherein: this pipe fitting is hollow, and is provided with a clamping section in pipe fitting inside; This stiffener thickness is even, is to be arranged in the clamping section of pipe fitting, and neat with the internal diameter subsides of pipe fitting.

Aforesaid pipe fitting reinforced structure, wherein the stiffener two ends respectively are provided with a lead angle.

Aforesaid pipe fitting reinforced structure, wherein stiffener hardness is less than pipe fitting hardness.

Aforesaid pipe fitting reinforced structure, wherein stiffener thickness is to be less than or equal to pipe fitting thickness.

Aforesaid pipe fitting reinforced structure, wherein stiffener is carbon fiber material or aluminum alloy material.

Aforesaid pipe fitting reinforced structure, wherein pipe fitting is a bicycle seat pole, this clamping section is for providing the bicycle seat pole zone of clamping piece locking.

Aforesaid pipe fitting reinforced structure, wherein pipe fitting is that straight tube and thickness are even.

In the clamping section stiffener is set, clamping piece is for the stressed stiffener that is dispersed to of pipe fitting, and needn't increase the thickness of pipe fitting, even can reduce pipe fitting thickness, and reaches the purpose of lightweight high-intensity; Again, pipe fitting thickness is consistent, and the existing structure uneven thickness can not take place, and produces the effect of stress concentration, more by keeping certain thickness, makes and makes facility; In addition, lead angle is set more can effectively bears clamping strength, and disperse stressed, moreover stiffener hardness can not cause pipe fitting inside stressed less than pipe fitting hardness, and the minus effect that causes bulk strength to reduce, and stiffener thickness is to be less than or equal to pipe fitting thickness, more can reduce the demand of weight.

The beneficial effects of the utility model are to have high strength and lightweight advantage concurrently.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the perspective exploded view of the utility model pipe fitting reinforced structure.

Fig. 2 is the combination schematic perspective view of the utility model pipe fitting reinforced structure.

Fig. 3 is the right sight plane section-drawing of the utility model pipe fitting reinforced structure.

Fig. 4 is the generalized section of 4-4 line segment shown in Figure 2.

The number in the figure explanation:

10 pipe fittings, 11 clamping sections, 20 stiffeners

40 pipes of 21 lead angles, 30 seat cushions

50 clamping pieces

The specific embodiment

The utility model is relevant a kind of pipe fitting reinforced structure, and present embodiment is example with the bicycle seat pole, but not as limit, sees also Fig. 1 to shown in Figure 4, and it mainly comprises a pipe fitting 10 and a stiffener 20, wherein:

This pipe fitting 10 is that hollow straight tube and thickness are even, these pipe fitting 10 1 ends combine with a seat cushion 30, the other end combines with a pipe 40, and with a clamping piece 50 lockings, in pipe fitting 10 inner definition one clamping sections 11, this clamping section 11 is for the zone of clamping piece 50 lockings, and this zone can be according to the requirements set position, in general be the catch siding zone of bicycle seat pole, this pipe fitting 10 is carbon fiber material, aluminum alloy material or ferro-alloy material;

This stiffener 20 is hollow and thickness is even, this stiffener 20 is to be arranged in the clamping section 11 of pipe fitting 10, and it is neat with the internal diameter subsides of pipe fitting 10, these stiffener 20 two ends respectively are provided with a lead angle 21 (seeing also shown in Figure 3), these stiffener 20 hardness are less than pipe fitting 10 hardness, and these stiffener 20 thickness are less than or equal to pipe fitting 10 thickness (seeing also shown in Figure 4), and this stiffener 20 is carbon fiber material or aluminum alloy material;

If the stiffener 20 of carbon fiber material can utilize the gummed mode to combine with pipe fitting 10, if the stiffener of aluminum alloy material 20, these stiffener 20 hardness are less than pipe fitting 10 hardness, can utilize draw molding mode and pipe fitting 10 to make in the lump, by the clamping section 11 of stiffener 20 support tubes 10, to reach the effect that reduces stress concentration.

The utility model is provided with stiffener 20 in clamping section 11, clamping piece 50 is dispersed to stiffener 20 for the stressed of pipe fitting 10, and needn't increase the thickness of pipe fitting 10, even can reduce pipe fitting 10 thickness, and reaches the target of lightweight high-intensity; Pipe fitting 10 thickness are consistent again, the existing structure uneven thickness can not take place, and produce the effect of stress concentration, more by keeping certain thickness, obtain the convenience of making; In addition, lead angle 21 is set more can effectively bears clamping strength, and disperse stressed, moreover, stiffener 20 hardness can not cause pipe fitting 10 inner stressed less than pipe fitting 10 hardness, and the minus effect that causes bulk strength to reduce, and stiffener 20 thickness are to be less than or equal to pipe fitting 10 thickness, more can reduce the demand of weight.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.

Claims

1, a kind of pipe fitting reinforced structure is characterized in that, it mainly comprises a pipe fitting and a stiffener, wherein:

This pipe fitting is hollow, and is provided with a clamping section in pipe fitting inside;

This stiffener thickness is even, is to be arranged in the clamping section of pipe fitting, and neat with the internal diameter subsides of pipe fitting.

2, pipe fitting reinforced structure according to claim 1 is characterized in that: described stiffener two ends respectively are provided with a lead angle.

3, pipe fitting reinforced structure according to claim 1 is characterized in that: described stiffener hardness is less than pipe fitting hardness.

4, pipe fitting reinforced structure according to claim 1 is characterized in that: described stiffener thickness is to be less than or equal to pipe fitting thickness.

5, pipe fitting reinforced structure according to claim 1 is characterized in that: described stiffener is carbon fiber material or aluminum alloy material.

6, pipe fitting reinforced structure according to claim 1 is characterized in that: described pipe fitting is a bicycle seat pole, and this clamping section is for providing the bicycle seat pole zone of clamping piece locking.

7, pipe fitting reinforced structure according to claim 1 is characterized in that: described pipe fitting is that straight tube and thickness are even.