CN213323513U

CN213323513U - Foldable bicycle front fork

Info

Publication number: CN213323513U
Application number: CN202021792502.XU
Authority: CN
Inventors: 彭福民
Original assignee: Tianjin Ounisite Car Material Co ltd
Current assignee: Tianjin Ounisite Car Material Co ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-06-01
Anticipated expiration: 2030-08-25

Abstract

The utility model discloses a folded cascade's bicycle front fork, concretely relates to bicycle technical field, including two top tubes and low tube, top tube and low tube outer end are equipped with equal strengthening mechanism, strengthening mechanism includes solid fixed ring, gu the fixed ring outer end is equipped with fastening bolt, fastening bolt one end extends to solid fixed ring inside and passes through threaded connection with solid fixed ring, the inside bottom mounting of low tube is equipped with the spring, the fixed folding rod that is equipped with of spring one end, the top tube cover is established in the folding rod outer end. The utility model discloses a set up solid fixed ring, after bicycle front fork is unfolded, establish solid fixed ring cover in the connecting strip outer end that top tube and low tube are connected to fix the stationary ring here through fastening bolt, make can rotate folding position and fix inside solid fixed ring, increase the intensity at top tube and low tube with this, improve the stability at folding position when realizing folding function.

Description

Foldable bicycle front fork

Technical Field

The embodiment of the utility model provides a relate to bicycle technical field, concretely relates to folded cascade's bicycle front fork.

Background

The bicycle is a green and environment-friendly vehicle, does not need any fuel, can be used for riding instead of walk, going on a journey, more and more people are used for riding exercise, bicycle trip with the bicycle as body-building apparatus, and the bicycle front fork is the essential element of bicycle, plays important effect such as steering support.

Nowadays, the style of bicycles is more and more flexible and changeable along with the development, and many bicycles have a folding function, so that the occupied space is reduced, but because the front fork of the bicycle is greatly stressed due to jolting in the using process, the folded part is unstable, and the use of the bicycle is influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the present invention provides a foldable bicycle front fork to solve the problem that the bicycle front fork in the prior art is unstable in use due to the large folding part of the stress caused by bumping.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: a foldable bicycle front fork comprises two upper tubes and a lower tube, wherein the upper tubes are arranged at the tops of the lower tubes, and reinforcing mechanisms are arranged at the outer ends of the upper tubes and the lower tubes;

the strengthening mechanism includes solid fixed ring, gu fixed ring establishes in top tube and low tube outer end, top tube one end is equipped with two connecting strips and passes through pivot swing joint with the connecting strip, connecting strip one end is through pivot swing joint with low tube one end, the connecting strip is established inside solid fixed ring, gu fixed ring outer end is equipped with fastening bolt, fastening bolt one end extends to solid fixed ring inside and passes through threaded connection with solid fixed ring, the inside bottom mounting of low tube is equipped with the spring, the fixed folding rod that is equipped with of spring one end, folding rod one end extends to the low tube top, the top tube cover is established in the folding rod outer end.

Furthermore, an electromagnet is fixedly arranged at the bottom end inside the lower pipe and is arranged on the inner side of the spring.

Furthermore, a switch and a battery are respectively and fixedly arranged on the front sides of the two lower tubes, and the battery, the switch and the electromagnet are connected in series.

Furthermore, a second fixing hole is formed in the outer end of the folding rod, a first fixing hole is formed in the outer end of the upper pipe, and a blocking rod is arranged inside the second fixing hole and the first fixing hole.

Further, the top of the upper tube is provided with a cross frame, the two folding rods are respectively and fixedly arranged at two ends of the cross frame, and the top end of the cross frame is fixedly provided with a connecting tube.

Further, a fixing frame is fixedly arranged at the bottom end of the lower pipe, and a plurality of bulges are fixedly arranged on the inner side of the fixing frame.

Furthermore, a bolt is arranged on the front side of the fixing frame, and one end of the bolt penetrates through the fixing frame and is movably connected with the fixing frame through threads.

The embodiment of the utility model provides a have following advantage:

the utility model discloses a set up solid fixed ring, after bicycle front fork is unfolded, establish solid fixed ring cover in the connecting strip outer end of top tube and low tube connection, and fix the retaining ring here through fastening bolt, make can rotate folding position and fix inside solid fixed ring, increase the intensity of top tube and low tube with this, improve the stability at folding position when realizing folding function, compare with prior art, use the retaining ring to consolidate folding position, improved the stability of front fork.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic view of the overall structure provided by the present invention;

fig. 2 is a front view provided by the present invention;

FIG. 3 is an enlarged view of the portion A in FIG. 1 according to the present invention;

fig. 4 is a cross-sectional view of the fixing frame provided by the present invention;

fig. 5 is a cross-sectional view of the stop lever provided by the present invention;

in the figure: 1 folding rod, 2 upper tubes, 3 connecting strips, 4 springs, 5 fixing frames, 6 lower tubes, 7 fastening bolts, 8 fixing rings, 9 first fixing holes, 10 second fixing holes, 11 cross frames, 12 connecting tubes, 13 switches, 14 batteries, 15 stop levers and 16 electromagnets.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to the attached drawings 1-5 in the specification, the foldable bicycle front fork of the embodiment comprises two upper tubes 2 and two lower tubes 6, wherein the upper tubes 2 are arranged at the tops of the lower tubes 6, and the outer ends of the upper tubes 2 and the lower tubes 6 are respectively provided with a reinforcing mechanism;

the strengthening mechanism is including solid fixed ring 8, gu fixed ring 8 establishes in

top tube

2 and 6 outer ends of low tube, 2 one ends of top tube are equipped with two connecting strips 3 and pass through pivot swing joint with connecting

strip

3, 3 one ends of connecting strip are through pivot swing joint with 6 one end of low tube, connecting strip 3 is established inside solid fixed ring 8, gu fixed ring 8 outer end is equipped with fastening bolt 7, fastening bolt 7 one end extends to gu fixed ring 8 inside and pass through threaded connection with solid fixed

ring

8, 6 inside bottom mounting of low tube is equipped with

spring

4, 4 one end of spring is fixed and is equipped with

folding rod

1, 1 one end of folding rod extends to 6 tops of low tube, the 1 outer end of folding rod is established to top tube 2 cover.

Furthermore, an electromagnet 16 is fixedly arranged at the bottom end inside the lower tube 6, the electromagnet 16 is arranged on the inner side of the spring 4, and the electromagnet is used for adsorbing the folding rod 1.

Further, a switch 13 and a battery 14 are respectively and fixedly arranged on the front sides of the two lower tubes 6, the battery 14, the switch 13 and the electromagnet 16 are connected in series, and the battery is used for supplying power to the electromagnet 16.

Further, second fixed orifices 10 have been seted up to 1 outer end of folding rod, first fixed orifices 9 have been seted up to 2 outer ends of top tube, second fixed orifices 10 and the inside shelves pole 15 that all is equipped with of first fixed orifices 9 for folding rod 1 after will folding is fixed with top tube 2.

Further, the top of the upper tube 2 is provided with a cross frame 11, two folding rods 1 are respectively fixed at two ends of the cross frame 11, the top end of the cross frame 11 is fixedly provided with a connecting tube 12, and the cross frame 11 is used for fixing the folding rods 1.

Further, 6 bottom fixings of low tube are equipped with mount 5, the inboard fixed a plurality of archs that are equipped with of mount 5 has increased the inside frictional force of mount 5.

Furthermore, a bolt is arranged on the front side of the fixed frame 5, and one end of the bolt penetrates through the fixed frame 5 and is movably connected with the fixed frame 5 through threads, so that the fixed frame 5 and the wheel axle are fixed tightly.

The implementation scenario is specifically as follows: when the bicycle front fork needs to be folded, the folding rod 1 is manually compressed to enable the folding rod 1 to retract into the lower pipe 6, the spring 4 is compressed, the switch 13 is opened, the electromagnet 16 is electrified, the electromagnet 16 has magnetic force to adsorb the folding rod 1, the blocking rod 15 penetrates through the second fixing hole 10 and the first fixing hole 9 after the second fixing hole 10 is overlapped with the first fixing hole 9, so that the folding rod 1 is fixed inside the upper pipe 2 and the lower pipe 6, the folding part of the folding rod 1 and the connecting strip 3 are positioned at the same level, therefore, the folding rod 1 can be simultaneously folded by communicating the upper pipe 2 with the lower pipe 6, when the bicycle front fork is used, the folded upper pipe 2, the lower pipe 6 and the folding rod 1 are unfolded again, the power supply of the electromagnet 16 is disconnected, the electromagnet 16 loses the adsorption force on the folding rod 1, the blocking rod 15 is drawn out from the first fixing hole 9 and the second fixing hole 10, the folding bar 1 protrudes from the interior of the lower tube 6 and the upper tube 2, at which point the fixing ring 8 is moved to the junction of the upper tube 2 and the lower tube 6, then the fastening bolt 7 is screwed, so that one end of the fastening bolt 7 is contacted with the connecting strip 3, thereby fixing the connecting part of the upper pipe 2 and the lower pipe 6 in the fixing ring 8 to improve the stability, by arranging the fixing ring 8, after the bicycle front fork is unfolded, the fixing ring 8 is sleeved at the outer end of the connecting strip 3 connected with the upper tube 2 and the lower tube 6, and the fixing ring 8 is fixed thereto by fastening bolts 7, so that the rotatably folded portion is fixed inside the fixing ring 8, thereby increasing the strength of the upper tube 2 and the lower tube 6, improving the stability of the folding part while realizing the folding function, the embodiment specifically solves the problem that the use of the bicycle is influenced because the part which is stressed and folded greatly is unstable due to bumping in the use process of the bicycle front fork in the prior art.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The utility model provides a folded cascade's bicycle front fork, includes two top tubes (2) and low tube (6), establish at low tube (6) top upper tube (2), its characterized in that: the outer ends of the upper pipe (2) and the lower pipe (6) are respectively provided with a reinforcing mechanism;

the reinforcing mechanism comprises a fixing ring (8), the fixing ring (8) is arranged at the outer ends of the upper pipe (2) and the lower pipe (6), one end of the upper pipe (2) is provided with two connecting strips (3) which are movably connected with the connecting strips (3) through a rotating shaft, one end of the connecting strip (3) is movably connected with one end of the lower pipe (6) through a rotating shaft, the connecting strip (3) is arranged inside the fixing ring (8), the outer end of the fixing ring (8) is provided with a fastening bolt (7), one end of the fastening bolt (7) extends into the fixing ring (8) and is connected with the fixing ring (8) through threads, a spring (4) is fixedly arranged at the bottom end in the lower pipe (6), a folding rod (1) is fixedly arranged at one end of the spring (4), folding rod (1) one end extends to low tube (6) top, top tube (2) cover is established in folding rod (1) outer end.

2. Foldable bicycle fork according to claim 1, characterized in that: the bottom end of the interior of the lower pipe (6) is fixedly provided with an electromagnet (16), and the electromagnet (16) is arranged on the inner side of the spring (4).

3. Foldable bicycle fork according to claim 2, characterized in that: two the lower tube (6) front side is fixed respectively and is equipped with switch (13) and battery (14), switch (13) and electro-magnet (16) are established ties mutually.

4. Foldable bicycle fork according to claim 1, characterized in that: second fixed orifices (10) have been seted up to folding rod (1) outer end, first fixed orifices (9) have been seted up to top tube (2) outer end, second fixed orifices (10) and first fixed orifices (9) are inside all to be equipped with shelves pole (15).

5. Foldable bicycle fork according to claim 1, characterized in that: the top tube (2) top is equipped with crossbearer (11), two folding rod (1) is fixed respectively and is established at the both ends of crossbearer (11), crossbearer (11) top is fixed and is equipped with connecting pipe (12).

6. Foldable bicycle fork according to claim 1, characterized in that: the bottom end of the lower pipe (6) is fixedly provided with a fixing frame (5), and a plurality of bulges are fixedly arranged on the inner side of the fixing frame (5).

7. Foldable bicycle fork according to claim 6, characterized in that: the front side of the fixing frame (5) is provided with a bolt, and one end of the bolt penetrates through the fixing frame (5) and is movably connected with the fixing frame (5) through threads.