CN2400340Y

CN2400340Y - Improved bicycle seat tube

Info

Publication number: CN2400340Y
Application number: CN 99248051
Authority: CN
Inventors: 李木荣
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-09-29
Filing date: 1999-09-29
Publication date: 2000-10-11
Anticipated expiration: 2009-09-29

Abstract

The utility model relates to an improved bicycle seat tube, which comprises the seat tube, two buckle blocks, two clamping blocks, and male and female buckles, wherein, the top end of the seat tube is provided with a buckle hole; the two buckle blocks are symmetrical and circular block bodies which are respectively provided with a through hole, a buckle part is convexly arranged outside the buckle blocks, and a shoulder part is arranged inside the buckle blocks; the clamping blocks are also circular block bodies which are provided with a screw hole in the center, the clamping blocks can be arranged inside the buckle blocks, and a cut part is cut on the clamping blocks; the male and female buckles are fixedly locked into integration from both sides of the seat tube respectively from the clamping blocks and the buckle blocks to the buckle hole of the seat tube respectively. The improved bicycle seat tube has the advantages of firm structure, strong practicability, simple assembly, and ability of reducing manufacturing cost to a great extent.

Description

The bicycle saddle tube of improvement

The utility model relates to a kind of bicycle assembly parts, and it is firm, practical to relate in particular to a kind of structure, and simple and convenient assembly can significantly reduce the bicycle saddle tube of the improvement of manufacturing cost.

As shown in Figure 1, the bicycle saddle tube of commonly using includes permanent seat, bonnet and protecgulum, but the structure of its each member is quite complicated, and for example the outer rim on the permanent seat must be provided with flange, and is pressed with annular knurl in this flange inner, and is formed with groove in its surface; Similarly relatively also be provided with a groove (commonly use and be referred to as fit slot in the structure) in the structure of its protecgulum, bonnet.

Therefore the above-mentioned permanent seat of commonly using must adopt molding give die cast again on making owing to being provided with annular knurl and flange, thus need increase mould, thus it is many that cost is improved.

Moreover the structure of its front and rear covers is not to be symmetrical member, and is different members, therefore must make in addition, similarly can increase many expenses, and its assembling is also pretty troublesome.

Because the competition of bicycle trade now is growing more intense, any one product all will meet most important cost benefit on making, the place can be arranged, and package program more easily also could improve its competitive power certainly.

Main purpose of the present utility model is, a kind of bicycle saddle tube of improvement is provided, and makes its structure firm, and has more practicality.

Secondary objective of the present utility model is, a kind of bicycle saddle tube of improvement is provided, and makes it significantly reduce manufacturing cost, simple and convenient assembly.

The purpose of this utility model is realized by following technical scheme.

A kind of bicycle saddle tube of improvement is characterized in that, mainly comprises a pipe, two button piece, two fixture blocks and box and pins, and described seat pipe top is provided with a button hole; Described two button pieces are the symmetrical nahlock bodies that respectively are provided with a perforation, and are convexly equipped with a button portion in the outside of button piece, and its inboard is provided with a shoulder; Described fixture block also is the nahlock body that is provided with a screw in the middle of it, and this fixture block is arranged at buckle in the piece, and cuts all ones that are provided with on the fixture block; One box and pin be respectively from seat pipe both sides respectively from fixture block, buckle piece to the button hole locking of seat pipe be one.

The utility model structure is firm, and is practical, and simple and convenient assembly can significantly reduce manufacturing cost.

For further understanding technology contents of the present utility model, characteristics and effect, exemplify following preferred embodiment now, and conjunction with figs. is described in detail as follows:

Fig. 1 is a decomposition texture scheme drawing of the present utility model.

Fig. 2 is a schematic appearance of the present utility model.

Fig. 3 is a longitudinal profile scheme drawing of the present utility model, and

Fig. 4 is a horizontal section action scheme drawing of the present utility model.

See also shown in Fig. 1,2, the utility model mainly comprises a pipe (10), two button piece (20), two fixture blocks (30) and box and pins (40,41), wherein:

This seat pipe (10) top is provided with a button hole (11);

This two button piece (20) is against a both sides of pipe (10) button hole (11) and detain, and is convexly equipped with a button portion (22) in the outside of button piece (20) for respectively being provided with the nahlock body of a perforation (21), and the inboard is provided with a shoulder (23);

This fixture block (30) is provided with the nahlock body of a screw (31) in the middle of being, and this fixture block (30) is arranged at buckle also to buckle in the piece (20) and is against on the shoulder (23) of buckleing piece (20), consults shown in Figure 3ly, and cuts all ones (32) that are provided with on the fixture block (30);

One box and pin (40,41) be respectively from seat pipe (10) both sides respectively from fixture block (30), buckle piece (20) and the seat that arrive is managed the button hole (11) of (10) and locked, and the screw rod (42) that makes its pin thread (40) secures in the screw (43) of box (41) and becomes one, and setting that can tie spacer (45) and more firm when making its locking.

Please consult shown in Fig. 3,4 simultaneously, when the utility model uses in assembling, it can unclamp box and pin (40,41) spiral shell, so and easily with fixture block (30) and buckle piece (20) separately, and when utilizing button piece (20) button to withstand on the button hole (11) of seat pipe (10), seat cushion sleeve pipe (51) with seat cushion (50) is buckled in the button portion (22) of piece (20) earlier, and assembling fixture block (30) and the portion of cutting (32) that makes its fixture block (30) buckle with the portion that buckles (22) that buckle piece (20) and withstand on the seat cushion sleeve pipe (51), and box and pin (40,41) is locked be integral again.

When desire is adjusted seat cushion (50) angle, also only need behind box and pin (40,41) the accent pine, rotary buckle piece (20), fixture block (30) to suitable angle are locked again simultaneously again, and therefore, the utility model assembling is convenient.

From the above mentioned as can be known, the utility model overcomes fully commonly uses the shortcoming that tubular construction exists, and makes firm more and changeableization of seat pipe, so the utility model is practical, and has value on the industry, now its advantage is described below:

1. it adopts member facing each other, as fixture block (30) and buckle piece (20) structure, and cooperates box and pin (40, the 41) locking part of generally commonly using, and therefore, its member is simple and easy, does not need die sinking tool again, can significantly reduce manufacturing cost, meets the value of industry.

2, its fixture block (30) is cut portion (32) and is buckled piece (20) and buckle that the formed portion of pulling that buckles can closely buckle the seat cushion sleeve pipe (51) of seat cushion (50) the solid button in the portion of pulling between portion (22), can not come off, and assembles easier.

When if loosening phenomenon takes place 3 box and pins (40,41), its fixture block (30) still can be lived seat cushion sleeve pipe (51) location with buckleing piece (20), and the phenomenon that seat cushion sleeve pipe (51) breaks away from can not take place easily.

4, it is by relative fixture block and buckles piece and combine, and utilizes its button portion and the portion of cutting to reach the effect of locking base cushion cover pipe, and is not only easy to assembly, and can reach the effect of firm practicality, is that to commonly use structure incomparable, creative in fact.

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 bicycle saddle tube of improvement is characterized in that, mainly comprises a pipe, two button piece, two fixture blocks and box and pins,

Described seat pipe top is provided with a button hole;

Described two button pieces are the symmetrical nahlock bodies that respectively are provided with a perforation, and are convexly equipped with a button portion in the outside of button piece, and its inboard is provided with a shoulder;

Described fixture block also is the nahlock body that is provided with a screw in the middle of it, and this fixture block is arranged at buckle in the piece, and cuts all ones that are provided with on the fixture block;

One box and pin be respectively from seat pipe both sides respectively from fixture block, buckle piece to the button hole locking of seat pipe be one.