CN203601452U - bicycle seat tube construction - Google Patents

Abstract

The utility model discloses a bicycle seat tube structure, which comprises a seat tube, wherein the upper end of the seat tube is used for installing a seat cushion, the seat tube can be arranged in a center pillar stand tube of a frame in a penetrating way, a quick-release binding piece is arranged at the upper tube opening end of the center pillar stand tube, the seat tube can be lifted up and down in the center pillar stand tube to adjust the height of the seat cushion, and the adjusted height of the seat cushion is fixed by the tight binding of the quick-release binding piece; the seat tube body is provided with a plurality of clamping elements which are axially arranged at proper intervals on the seat tube body, the upper end of the center pillar vertical tube body of the frame is provided with a clamping hole, the clamping elements of the seat tube can be clamped into the clamping hole of the center pillar vertical tube, and the seat tube can be tightened and fixed by a quick-release tightening piece at the upper end of the center pillar vertical tube, so that double safety measures are formed, and the riding safety of the bicycle is improved.

Description

bicycle seat tube construction

technical field

The utility model relates to a bicycle seat tube structure, in particular to a bicycle seat tube structure which can improve riding safety.

Background technique

In order to conform to the figure of the rider and provide a good riding posture, the height of the seat cushion of a general bicycle is designed to be adjustable; The upper end of 10 can provide a pad 20 for installation, the seat tube 10 can be installed in the center column riser 31 of the vehicle frame 30, and the upper nozzle end of the center column riser 31 is provided with a quick-release beam connector 32, the seat tube 10 The height of the seat cushion 20 can be adjusted up and down in the center column standpipe 31 , and the height of the seat cushion 20 can be fixed by fastening the center column standpipe 31 by means of the quick-release bundle joint 32 after adjustment.

The above-mentioned existing bicycle seat tube structure, although the height of the bicycle seat cushion 20 can be adjusted according to the figure of the rider; but check:

(1) Since the above-mentioned existing bicycle seat tube 10 does not have an angle positioning structure design, the angle of the seat cushion 20 after the height adjustment is easy to deviate and skew, causing discomfort when riding, and even unsafe riding; in other words , each time after adjusting the height of the seat cushion 20, the angle of the seat cushion 20 must be corrected again, which is inconvenient in use.

(2) After the above-mentioned existing bicycle seat tube 10 is adjusted in height, the seat tube 10 is only tightened and fixed by the quick-release beam joint 32, but the quick-release beam joint 32 is easy to loosen due to vibration during riding , so that the quick-release beam connector 32 reduces the tightening effect on the seat tube 10, especially after the quick-release beam connector 32 is used for a period of time, its tightening force will be reduced due to the wear and tear of the parts, so the seat tube 10 is easy to It loosens and slides down or deflects under violent riding, causing dangerous loss of riding.

Utility model content

In order to improve the defects existing in the above-mentioned existing bicycle seat tube, the utility model provides a bicycle seat tube structure, which can improve riding safety.

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

A bicycle seat tube structure, including a tube, the upper end of the seat tube is used for a seat pad to be installed, the seat tube can be passed through the center column riser of the vehicle frame, and the upper tube end of the center column riser is provided with a quick release beam joint. The seat tube can be lifted up and down in the center column riser to adjust the height of the seat cushion. After adjustment, the center column riser can be tightened with the quick-release beam connector to fix the adjusted seat cushion height; among them:

The tube body of the seat tube is provided with several locking elements, and the locking elements are axially arranged on the body of the seat tube at an appropriate distance, one end of the locking element protrudes from the outer tube wall of the seat tube, and the other end of the locking element is connected A spring is arranged between the inner tube wall of the seat tube, and the spring pushes the locking element outward, so that the locking element keeps protruding from the outer tube wall of the seat tube without external force;

There is a locking hole on the upper end of the center column riser tube of the frame, which corresponds to several locking elements arranged in the axial direction of the seat tube body, for one of the locking elements to be locked into the locking hole , the upper end of the center column standpipe is provided with a detent release lever, one end of the detent release lever forms a top pressure end, and the top pressure end corresponds to the detent hole;

With the above structure, the locking element of the seat tube can be snapped into the locking hole of the center column riser, and the seat tube can be fastened and fixed by the quick-release bundle joint at the upper end of the center column riser, forming a double safety Measures can prevent the seat tube and seat cushion from loosening, sliding down or deflecting during riding, so as to improve the safety of bicycle riding.

Description of drawings

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

Fig. 1 is a three-dimensional exploded view of a conventional bicycle seat tube.

Fig. 2 is a three-dimensional exploded view of the utility model.

FIG. 2A is an enlarged schematic view of the part shown in FIG. 2 .

Fig. 3 is a sectional view of the utility model.

Fig. 4 is an I-I sectional view shown in Fig. 3 .

Fig. 5 is a cross-sectional view of the utility model and a schematic diagram of its action.

Explanation of symbols in the figure:

10 seatpost

11 Locking element

12 springs

13 guide groove

20 seat cushion

30 frame

31 center column riser

311 snap hole

32 Quick release connectors

33 Detent release lever

331 top pressure end

34 Slide into the guide groove

35 guide block

Detailed ways

Relevant technical means and structure thereof that the utility model utilizes for reaching the purpose, cooperate the embodiment shown in Fig. 2 to Fig. 5 hereby again, describe in detail as follows:

As shown in Figures 2 and 3, the structure of the bicycle seat tube in the embodiment includes a seat tube 10, the upper end of the seat tube 10 can be provided with a seat pad 20 for installation, and the seat tube 10 can be passed through the center post of the vehicle frame 30. Inside the tube 31, a quick release connector 32 is provided at the upper nozzle end of the center column riser 31. As shown in FIG. The height of the seat cushion 20 after adjustment can be fixed by tightening the center column standpipe 31 by means of the quick-release connecting piece 32 .

The structures disclosed in the above-mentioned embodiments are similar to the structure of the existing height-adjustable bicycle seat tube, so no further explanation will be given. The technical means and structural features of the utility model to achieve the purpose are described in detail as follows :

Seat tube 10 (please refer to Fig. 2, shown in Fig. 3), its tube body is provided with several locking elements 11 arranged axially, one end of locking element 11 protrudes from the outer tube wall of seat tube 10, and the other end of locking element 11 A spring 12 is arranged between the inner tube wall of the seat tube 10, and the spring 12 pushes the locking element 11 outward, so that the locking element 11 keeps protruding from the outer tube wall of the seat tube 10 under no external force.

In a preferred embodiment of the above-mentioned seat tube 10 , as shown in FIG. 2 and FIG. 4 , an axially extending guide groove 13 is provided on the tube body of the seat tube 10 .

Vehicle frame 30 (please refer to Fig. 2, Fig. 3 shown), wherein column standpipe 31 pipe upper end is provided with a catch hole 311, and the catch hole 311 just corresponds to the several axially arranged arrangement of seat pipe 10 pipe body. The locking element 11 can provide one of the locking elements 11 to be locked into the locking hole 311. The upper end of the center column standpipe 31 is also provided with a locking release lever 33. One end of the locking releasing lever 33 forms a pressing end 331. The pressing end 331 just corresponds to the locking hole 311, and the top pressing end 331 can extend into the locking hole 311 to press the locking element 11 inwardly and sink to break away from the locking hole 311 of the center column riser 31 (as shown in Figure 5 shown).

The above-mentioned center column standpipe 31, a preferred embodiment, as shown in Figure 2 and Figure 3, is provided with a slide-in guide groove 34 on its upper pipe mouth edge, as shown in Figure 2A, the slide-in guide groove 34 just corresponds to Several locking elements 11 arranged axially on the body of the seat tube 10 allow the locking elements 11 protruding outside the center column riser 31 to slide inwards smoothly into the seat tube by sliding into the guide groove 34 10, and then the seat tube 10 can be smoothly retracted downwards.

In a preferred embodiment of the above-mentioned center column standpipe 31, as shown in Fig. 2 and Fig. 4, there is a guide block 35 at the upper end of the center column stand pipe 31, and the guide block 35 corresponds to the guide groove 13 provided on the body of the seat tube 10. The guide block 35 can also be extended into the guide groove 13, so that the seat tube 10 can be positioned without radial rotation when moving up and down in the center column riser 31.

With the above structure, as shown in FIG. 5 , when you want to adjust the height of the seat cushion 20 , you only need to loosen the tightening effect of the quick release connector 32 on the seat tube 10 , and then press the pressing end 331 of the release lever 33 , the top pressure end 331 can press the locking element 11 inward and sink to break away from the locking hole 311 of the center column riser 31, so that the seat tube 10 can be lifted up and down in the center column riser 31 to adjust the height of the seat cushion 20; After the adjustment, the center column standpipe 31 can be fixed by means of the locking element 11 snapped into the locking hole 311, and then the height of the adjusted seat cushion 20 can be fixed to form the first safety measure, and then the quick release bundle can be tightened The tightening effect of the connector 32 on the seat tube 10 is to form a second safety measure, thereby preventing the seat tube 10 and the seat cushion 20 from loosening, sliding down or deflecting during riding, so as to improve the safety of bicycle riding .

Therefore, the utility model has the following advantages:

(1) As shown in Figure 3, the height-adjusted seat tube 10 can be positioned in the locking hole 311 of the center column riser 31 by means of the locking element 11 to form the first safety measure to prevent the seat tube from The tube 10 and the seat cushion 20 slide down, and the seat tube 10 can be fastened and fixed by the quick-release beam connector 32 on the upper end of the center column riser 31 to form a second safety measure; therefore, the double safety measures are helpful Improve the safety of bicycle riding.

(2) As shown in Figure 2, since the seat tube 10 body is provided with an axially extending guide groove 13, the upper end of the center column riser 31 is provided with a guide block 35, and the guide block 35 corresponds to the set guide of the seat tube 10 body. The groove 13 and the guide block 35 can also be placed in the guide groove 13, so that the seat tube 10 can be positioned without radial rotation when moving up and down in the center column riser 31; therefore, in the center column riser 31 During the height adjustment process, the angle of the seat cushion 20 will not be skewed, and will not cause discomfort and unsafe riding after adjustment; in other words, after adjusting the height of the seat cushion 20 every time, it is not necessary to Correcting the angle of the seat cushion 20 helps to improve the convenience of use.

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model, All still belong to within the scope of the technical solution of the utility model.

In summary, the utility model fully meets the needs of industrial development in terms of structural design, practicability and cost-effectiveness, and the disclosed structure also has an unprecedented innovative structure, novelty, creativity and practicability, and meets the needs of industrial development. According to the requirements of the new patent requirements, the application is filed in accordance with the law.

Claims (3)

1. a bicycle saddle tube structure, include a pipe, install for a seat cushion seat pipe upper end, seat pipe can be arranged in the center pillar standpipe of vehicle frame, the upper orifice end of center pillar standpipe is provided with a quick detach bundle fitting, seat pipe can oscilaltion be adjusted bench height in center pillar standpipe, can be by the tight intrafascicular post standpipe of quick detach bundle fitting, with the bench height after fixed adjustment after adjustment; It is characterized in that:

The pipe shaft of seat pipe is provided with the engagement element of several axial array, seat pipe outer tube wall is protruded in engagement element one end, between the engagement element other end and seat pipe inner tubal wall, be provided with a spring, spring toward extrapolation, makes engagement element not be subject to maintenance under External Force Acting to protrude seat pipe outer tube wall state engagement element;

The pipe shaft upper end of center pillar standpipe is provided with a clip hole, several engagement elements that clip hole just arranges corresponding to seat pipe pipe shaft institute axial array, supply a wherein engagement element to snap in clip hole, center pillar standpipe upper end is also provided with a clip relieving rod, clip relieving rod one end forms a top pressure side, top pressure side is just corresponding to clip hole, and top pressure side also stretches into clip hole engagement element top is pressed toward interior shrink mark to depart from the clip hole of center pillar standpipe.

2. bicycle saddle tube structure according to claim 1, is characterized in that, the upper pipes peristoma of described center pillar standpipe is provided with one and slips into guide groove, slips into several engagement elements that guide groove just arranges corresponding to seat pipe pipe shaft institute axial array.

3. bicycle saddle tube according to claim 1 structure, is characterized in that, described seat pipe pipe shaft is provided with an axially extended guide groove, and this center pillar standpipe upper end is provided with a guide block, and guide block is just corresponding to the set guide groove of seat pipe pipe shaft, and guide block is also stretched and is placed in guide groove.

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