CN207389368U - A kind of public bicycles seat pipe and the fixing device of seat bar - Google Patents

Abstract

The utility model discloses the fixing device of a kind of public bicycles seat pipe and seat bar, the seat bar of vehicle seat, seat pipe, lock nut, snap lock pipe ring, knob screw rod, locking nut, locking screw are fixed with including upper end.There is reticulate pattern in the lower end outer surface of the seat bar, seat bar lower end is inserted in seat pipe, there are two opening, there is screw thread in seat pipe outer surface for the upper end of seat pipe, and inner surface fixes the rubber pad with reticulate pattern, lock nut is located at the upper end of opening, snap lock pipe ring is fixed on open lower end, and the inner surface of lock tube ring fixes the rubber pad with reticulate pattern, and there is flank at the both ends of lock tube ring, screw hole is provided with above a flank wherein and equipped with locking nut and knob screw rod, the tail end of knob screw rod is equipped with locking screw.The utility model carries out dual fixation with lock nut and snap lock pipe ring, and there is rubber pad in the inner surface of seat pipe and snap lock pipe ring, increase the contact area of the two, improve crystallized ability, and the friction damage between bar and seat pipe is reduced, extend the service life of a bar and seat pipe.

Description

A kind of public bicycles seat pipe and the fixing device of seat bar

Technical field

The utility model belongs to bicycle art, and in particular to a kind of public bicycles seat pipe and the fixing device of seat bar.

Background technology

With the development of economy with the quickening of urbanization process, the quantity of private car is more and more, although private car is one Determine to bring conveniently for people’s lives in degree, but it is further serious also to become the pollution problem of environment for vehicle exhaust, and And it is more that the time that private car is sometimes spent instead due to traffic congestion is opened in the commuter time.In this case, it is public voluntarily The appearance of vehicle largely solves the problem of environmental pollution, trip traffic congestion, is provided greatly just for people’s lives Profit.But it is different using the height of public bicycles people daily, the requirement for vehicle seat height is inevitable different.It is and existing The seat bar of public bicycles and the fixed form generally use Quick-dismantle component of seat pipe are compeled to fasten, although using this kind of mode The demand that people automatically adjust vehicle seat height is met to a certain extent, but the fixed side of packing is subject to using Quick-dismantle component Method is this there are contact area between seat pipe and seat bar is smaller, firm power is not big enough, the fixing device smaller problem of fixed force Problem is easy to cause a bar along seat pipe slide downward, especially when Uneven road is steady, due between seat bar and seat pipe The smaller reason of fixed force, there is the probability that vehicle seat height is lower suddenly in ride in people to be greatly increased, at this time People can feel to cycle uncomfortable.And between existing public bicycles seat bar and seat pipe be typically what is contacted directly, therefore Seat bar and seat pipe between slide downward the surface of the two can be caused to wear, if this slip often, it will cause Seat pipe can not be fixed with seat bar, reduce the service life of seat pipe and seat bar.

The content of the invention

In order to which existing public bicycles seat pipe is overcome to provide one with deficiency, the utility model existing for the fixing device of seat bar The new public bicycles seat pipe of kind and the fixing device of seat bar, dual fixation can be realized using the fixing device, and can To increase the contact area between seat bar and seat pipe, so as to improve firm power between the two, and will not be right using the device The surface of seat bar and seat pipe causes to wear, and improves the service life of seat pipe and seat bar.

The utility model to achieve the above object, is achieved through the following technical solutions：A kind of public bicycles seat pipe and seat The fixing device of bar, including vehicle seat, seat bar, seat pipe, lock nut, snap lock pipe ring, vehicle seat fixes the upper end of present bar, seat bar Lower end be inserted in seat pipe, the upper end of the seat pipe is equipped with a pair of openings, and the outer surface of opening is equipped with the first screw thread, lock nut Inner surface be equipped with the second screw thread, the open upper end of lock nut and seat pipe is threaded togather by the first screw thread, second, Snap lock pipe ring is fixed on the open lower end of seat pipe.

Preferably, the lock nut is divided into upper, middle, and lower part, and upper section diameter is less than lower part, center section For the transition portion of truncated cone-shaped, the second screw thread is equipped in the inner surface of upper part and center section, the diameter of lower part is more than seat The diameter of pipe, and the outer surface of upper part is equipped with handle.

Preferably, the snap lock pipe ring inner surface secures the first rubber pad with reticulate pattern, snap lock pipe ring There are the first flank, the second flank in both ends, and screw hole is provided on the second flank, and locking nut is fixed in the one side of screw hole, rotation Button screw rod is connected by screw hole with locking nut, and locking screw is equipped in the tail end of knob screw rod.

Preferably, the inner surface of the seat pipe opening secures the second rubber pad with reticulate structure.

Preferably, reticulate pattern is carved in the outer surface of the seat bar lower end.

By adopting the above-described technical solution, the utility model has the advantages that：

1. the utility model employ two fixing devices of lock nut and snap lock pipe ring respectively to seat pipe and seat bar into Row is fixed, and improves fixed force, and secures the rubber pad with reticulate pattern in the inner surface of seat pipe and snap lock pipe ring, greatly The big contact area added between seat pipe and seat bar, improves firm power；

2. due to securing the rubber pad with reticulate pattern in the inner surface of seat pipe and snap lock pipe ring, make seat pipe and seat bar And be not directly contacted with, when present bar is mutually moved compared with seat pipe, the surface of the two will not be damaged, extend seat The service life of pipe and seat bar；

3. the utility model is simple in structure, reliable and stable, it is easy to accomplish.

Description of the drawings

Fig. 1 is the general structure schematic diagram of the utility model.

Fig. 2 is the seat pipe structure diagram of the utility model.

Fig. 3 is the lock nut structure diagram of the utility model.

Fig. 4 is the snap lock pipe ring structure diagram of the utility model.

Reference numeral：1：Vehicle seat；2：Seat bar；3：Handle；4：Lock nut；41：Second screw thread；5:Snap lock pipe ring；51： First flank；52：Second flank；53：First rubber pad；6：Knob screw rod；7：Seat pipe；71：First screw thread；72：Second rubber Pad；8：Locking screw；9：Locking nut.

Specific embodiment

Specific embodiment of the present utility model is described further in the following with reference to the drawings and specific embodiments.

With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4：A kind of public bicycles seat pipe and the fixing device of seat bar, including vehicle seat 1, seat bar 2nd, seat pipe 7, lock nut 4, snap lock pipe ring 5, vehicle seat 1 fix the upper end of present bar 2, and net is carved in the outer surface of 2 lower end of seat bar Line, and the lower end of seat bar 2 is inserted in seat pipe 7, the upper end of seat pipe 7 is set there are two opening, and the inner surface of opening is secured with net Second rubber pad 72 of line structure, and the outer surface being open is equipped with the first screw thread 71, and the inner surface of lock nut 4 is equipped with second Screw thread 41, lock nut 4 and the open upper end of seat pipe 7 are linked together by the first screw thread 71, the second screw thread 41, elastic lock tube Ring 5 is fixed on the open lower end of seat pipe 7.

When people are needed using bicycle, it is necessary to the height of vehicle seat 1 be adjusted according to the height of oneself, since vehicle seat 1 is solid Be scheduled on the upper end of a bar 2, i.e. people need position relationship of the adjustment seat bar 2 compared with seat pipe 7, so firstly the need of seat bar 2 with Seat pipe 7 is in transitory state, rotates counterclockwise the handle 3 above lock nut 4 at this time, make lock nut 4 compared with Seat pipe 7 moves upwards, until the helicitic texture between lock nut 4 and seat pipe 7 is in notconnect state, 7 upper end of seat pipe at this time Opening will become larger, and then rotate counterclockwise knob screw rod 6, make knob screw rod 6 compared with being fixed on snap lock pipe ring the second side Locking nut 9 above the wing 52 does separate movement, and the opening above the second flank of snap lock pipe ring 52 will become larger at this time, elasticity The diameter of lock tube ring 5 will become larger, until the locking screw 8 for being located at 6 tail end of knob screw rod is in contact with locking nut 9, at this time Due to the barrier effect of locking screw 8, knob screw rod 6 cannot continue to move compared with locking nut 9, can effectively prevent people Inordinate rotation knob screw rod 6 and cause coming off for knob screw rod 6.So far the fixation of lock nut 4 and snap lock pipe ring 5 Disappeared, seat bar 2 can do free movement in the vertical direction compared with seat pipe 7, people can according to oneself need to Above or downwards change height of the seat bar 2 compared with seat pipe 7.

After people determine height according to the requirement of oneself, the bar 2 that needs to invite guests to be seated at this time recovers fixing shape again with seat pipe 7 State.People need to rotate clockwise the handle 3 above lock nut 4 first, since lock nut 4 has upper, middle and lower three It is grouped into, and the diameter of lower part is more than the diameter of seat pipe 7, center section is the transition structure of truncated cone-shaped, the diameter of upper part Less than the diameter of lower part, by rotational handle 3, people can easily be such that lock nut 4 is transported downwards compared with seat pipe 7 Dynamic, since the diameter of part on lock nut 4 is less than the diameter of lower part, the opening of 7 upper end of seat pipe will be with turning for handle 3 Dynamic and become smaller, and the inner surface of seat bar 7 secures the second rubber pad 72 with reticulate structure, the second rubber pad 72 will be with Seat bar 2 with reticulate structure is in close contact, and contact area is larger, and frictional force is larger, so as to reach lock nut 4 to seat bar 2 fixation.Then knob screw rod 6 is rotated clockwise, makes knob screw rod 6 compared with being fixed on the second flank of snap lock pipe ring Locking nut 9 above 52 does close movement, then the opening of the second flank 52 will constantly become smaller, the diameter of snap lock pipe ring 5 It will become smaller, since the inner surface of snap lock pipe ring 5 secures the first rubber pad 53 with reticulate structure, the first rubber pad 53 It will be in close contact with the seat bar 2 with reticulate structure, and contact area is larger, frictional force is larger, so as to reach to seat bar 2 Fixation completes fixation of the snap lock pipe ring 5 for seat bar 2 and seat pipe 7 at this time.

Finally it should be noted that：The technical solution of the utility model is not restricted to embodiment described in the utility model In the range of, the technology contents of the not detailed description of the utility model are known technology.

Claims (5)

1. a kind of public bicycles seat pipe and the fixing device of seat bar, including vehicle seat（1）, seat bar（2）, seat pipe（7）, lock nut （4）, snap lock pipe ring（5）, vehicle seat（1）Fixed present bar（2）Upper end, seat bar（2）Lower end be inserted in seat pipe（7）It is interior, it is special Sign is：The seat pipe（7）Upper end be equipped with a pair of openings, the outer surface of opening is equipped with the first screw thread（71）, lock nut（4） Inner surface be equipped with the second screw thread（41）, lock nut（4）With seat pipe（7）Open upper end pass through the first screw thread（71）, second Screw thread（41）It links together, snap lock pipe ring（5）It is fixed on seat pipe（7）Open lower end.

2. a kind of public bicycles seat pipe according to claim 1 and the fixing device of seat bar, it is characterised in that：Described Lock nut（4）It is divided into upper, middle, and lower part, upper section diameter is less than lower part, and center section is the transition part of truncated cone-shaped Point, it is equipped with the second screw thread in the inner surface of upper part and center section（41）, the diameter of lower part is more than seat pipe（7）Diameter, And the outer surface of upper part is equipped with handle（3）.

3. a kind of public bicycles seat pipe according to claim 1 and the fixing device of seat bar, it is characterised in that：Described Snap lock pipe ring（5）Inner surface secures the first rubber pad with reticulate pattern（53）, snap lock pipe ring（5）Both ends have the first side The wing（51）, the second flank（52）, in the second flank（52）Screw hole is provided with above, and locking nut is fixed in the one side of screw hole（9）, Knob screw rod（6）Pass through screw hole and locking nut（9）It is connected, in knob screw rod（6）Tail end be equipped with locking screw（8）.

4. a kind of public bicycles seat pipe according to claim 1 and the fixing device of seat bar, it is characterised in that：Described The inner surface of seat pipe opening secures the second rubber pad with reticulate structure（72）.

5. a kind of public bicycles seat pipe according to claim 1 and the fixing device of seat bar, it is characterised in that：Described Seat bar（2）It is carved with reticulate pattern in the outer surface of lower end.