CN108438110B

CN108438110B - Labor-saving comfortable bicycle with scissor-shaped bridge spring

Info

Publication number: CN108438110B
Application number: CN201810090101.0A
Authority: CN
Inventors: 王宏利
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-01-30
Filing date: 2018-01-30
Publication date: 2020-11-06
Anticipated expiration: 2038-01-30
Also published as: CN108438110A

Abstract

The invention belongs to the technical field of bicycles, and particularly relates to a labor-saving comfortable bicycle which can be assisted by self gravity and is designed by a scissors-shaped bridge spring. The method comprises the following steps: the frame and set up handlebar and front fork subassembly on the frame cooperation, the frame includes: the device comprises a main frame in an inverted triangle shape, wherein a first auxiliary frame in a triangle shape is arranged at the rear end of the main frame; the first edge of the first auxiliary frame and the horizontal plane form an acute angle, and a connecting plate is arranged; the joint of the first edge and the second edge of the first auxiliary frame is connected with a rear fork assembly capable of absorbing shock through a hinge; be provided with drive assembly on the frame, include: the main chain wheel is arranged at the top of the bottom end of the main frame, the chain wheel is arranged on the connecting plate, and the flywheel is arranged on the rear fork assembly; the main chain wheel, the over chain wheel and the flywheel are respectively connected through chains. The invention can realize comfortable riding, labor saving and lightness.

Description

Labor-saving comfortable bicycle with scissor-shaped bridge spring

Technical Field

The invention belongs to the technical field of bicycles, and particularly relates to a labor-saving comfortable bicycle which can be assisted by self gravity and is designed by a scissors-shaped bridge spring.

Background

With the continuous improvement of living standard of people, the exercise, fitness, health care and environmental protection become the normal life of people. More and more people go out and select a vehicle, namely a bicycle, which is both body-building and convenient. However, in view of the ever-changing variety of bicycles, the main structure of the bicycle basically includes: a frame mainly based on triangle, a front fork with compression shock absorption and two wheels. Such basic structure is fixed unchangeable, still relies on front fork and preceding, back tire and seat spring shock attenuation at the shock attenuation convenience, and the effect is very limited, and although the level and smooth state of road is very improved at present, the current bicycle structure can not satisfy people's higher and higher high requirement comfortable riding.

Disclosure of Invention

The invention aims to solve the technical problems and provides a labor-saving comfortable bicycle which can realize power assistance by utilizing self gravity and is designed by using a scissors-shaped bridge type spring.

The invention is realized by the following technical scheme:

a power saving comfortable bicycle using a scissors bridge spring design, comprising: the frame and set up handlebar and front fork subassembly on the frame cooperation, its characterized in that, the frame includes:

the device comprises a main frame in an inverted triangle shape, wherein a first auxiliary frame in a triangle shape is arranged at the rear end of the main frame;

the first edge of the first auxiliary frame and the horizontal plane form an acute angle, and a connecting plate is arranged;

the joint of the first edge and the second edge of the first auxiliary frame is connected with a rear fork assembly capable of absorbing shock through a hinge;

be provided with drive assembly on the frame, include: the main chain wheel is arranged at the top of the bottom end of the main frame, the chain wheel is arranged on the connecting plate, and the flywheel is arranged on the rear fork assembly; the main chain wheel, the over chain wheel and the flywheel are respectively connected through chains;

it is provided with afterburning system to cross on the sprocket, include: the first spring core frame is coaxially arranged with the chain passing wheel, a first torsion spring is arranged on the first spring core frame, and a first pressure regulating bolt is arranged on a first supporting leg of the first torsion spring; the rear fork assembly includes: the rear fork locking device comprises a rear fork locking bar and rear fork movable inner tubes symmetrically arranged on two sides of the rear fork locking bar, wherein a rear fork external fixed micro-swing outer tube is sleeved on the outer side of each rear fork movable inner tube; an axle mounting part I is arranged at the bottom end of the movable inner tube, and a second supporting leg of the torsion spring I is arranged on an axle of a rear wheel; and a pull rod is connected between the chain wheel and the axle mounting piece I.

Preferably, the rear fork assembly includes: the upper end and the lower end of the rear fork outer fixing micro-swing outer tube are sleeved on the rear fork movable inner tube through elastic sliding sleeves.

Preferably, the axle mounting piece I is provided with a brake connecting plate.

Preferably, the second side of the first auxiliary frame is provided with a rear fork micro-swing limiting mechanism for limiting the rear fork.

Preferably, the front fork assembly includes: the front fork locking bar and the front fork movable inner tubes are symmetrically arranged at two sides of the front fork locking bar; the upper side and the lower side of the front fork movable inner tube are movably sleeved with a front fork fixed outer tube through sliding sleeves;

the bottom end of the front fork fixing outer tube is provided with a second axle mounting piece, and a second brake mounting piece is arranged on the second axle mounting piece.

Preferably, a pressure preposed plate is arranged on the front fork fixing outer tube;

leading board bottom of pressure is provided with preceding afterburning system, includes: a second spring core frame fixed at the bottom end of the pressure front-mounted plate, wherein a second torsion spring is arranged on the second spring core frame, and a second pressure regulating bolt is arranged on a first support leg of the second torsion spring; and a second supporting leg of the second torsion spring is arranged on an axle of the front wheel.

Preferably, the front fork assembly further comprises a pre-tightening locking mechanism, which comprises the following components in sequence from bottom to top: a lower hinge locking rod with one end coaxial with the axle mounting hole of the axle mounting piece II, a middle sliding locking rod with one end movably connected to the axle mounting piece II and an upper hinge locking rod with one end connected with the sliding sleeve; the other end of the lower hinge locking rod and the other end of the upper hinge locking rod are movably arranged on the middle sliding locking rod;

preferably, the intermediate sliding locking rod is further provided with a locking bolt.

Preferably, a basket is arranged at the front end of the frame, and front luggage racks are symmetrically arranged on two sides of the basket; the rear end of the frame is provided with a rear goods shelf, and two sides of the rear goods shelf are symmetrically provided with side goods shelves.

Compared with the prior art, the invention has the following beneficial technical effects:

on the premise of not changing the habit of riding the existing bicycle, the independent suspension system and necessary accessories are additionally arranged, so that the two wheels can be adapted to the road condition during the traveling to vibrate up and down, the lever type spring stores and releases energy through vibration, and a part of load is converted into advancing power, so that the riding is comfortable, labor-saving and light.

Drawings

FIG. 1 is a schematic view of a power-saving and comfortable bicycle using a scissors-shaped bridge spring design according to the present invention.

Fig. 2 is a schematic structural diagram of a torsion spring according to the present invention.

Fig. 3 is a schematic view of the frame structure provided by the invention.

Fig. 4 is a schematic structural diagram of a transmission assembly provided by the invention.

FIG. 5 is a schematic structural view of a rear fork assembly provided in the present invention.

FIG. 6 is a side view of the rear fork assembly provided by the present invention.

Fig. 7 is an assembly view of the torsion spring assembly provided by the present invention.

Fig. 8 is a schematic structural diagram of a rear force application system provided by the present invention.

FIG. 9 is a schematic structural view of a front fork assembly provided in the present invention.

FIG. 10 is a side view of a front fork assembly provided by the present invention.

FIG. 11 is an enlarged partial view of the front wheel and fork assembly provided by the present invention.

Fig. 12 is a schematic diagram of a pre-tightening position structure of a pre-tightening locking mechanism provided by the invention.

Fig. 13 is a schematic view of a compression position structure of the pre-tightening locking mechanism provided by the invention.

Fig. 14 is a working principle diagram of the rear fork micro-swing limiting mechanism provided by the invention.

Fig. 15 is an exploded view of the front wheel support pressure front force provided by the present invention.

Fig. 16 is an exploded view of the rear wheel support pressure front force provided by the present invention.

Detailed Description

The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.

The invention discloses a wheel type full-damping gravity-assisted labor-saving comfortable bicycle with an independent suspension. Referring to fig. 1, the vehicle body structure mainly includes a frame 2, a handlebar 1 disposed on the frame 2, and a front fork assembly disposed on the frame 1. Referring to fig. 3, the vehicle frame includes: the main frame 301 is in an inverted triangle shape, and a first auxiliary frame in a triangle shape is arranged at the rear end of the main frame 301; the first edge 302 of the first auxiliary frame is arranged at an acute angle with the horizontal plane and is provided with a connecting plate 306; the junction 305 of the first side 302 and the second side 303 of the first subframe is connected with a shock-absorbing rear fork assembly through a hinge.

Referring to fig. 4, the frame 2 is provided with a transmission assembly, which includes: a main chain wheel 11 arranged at the top of the bottom end of the main frame 301, a chain wheel 13 arranged on a connecting plate 306 of the first side 302 and a flywheel 15 arranged on a rear fork assembly; a main chain 25 is arranged between the main chain wheel 11 and the chain wheel 13, and an auxiliary chain 26 is arranged between the chain wheel 13 and the flywheel 15.

Referring to fig. 5, the rear fork assembly includes: the rear fork locking device comprises a rear fork locking rod 501 and rear fork movable inner tubes 502 symmetrically arranged on two sides of the rear fork locking rod 501, wherein rear fork outer fixed micro-swing outer tubes 503 are sleeved on the outer sides of the rear fork movable inner tubes 502; the upper end and the lower end of the rear fork outer fixed micro-swing outer tube 503 are sleeved on the rear fork movable inner tube 502 through an elastic sliding sleeve 504. The bottom end of the movable inner tube 502 is provided with an axle mounting piece I505. The rear fork external fixing micro-swing outer tube 503 is also provided with a hinge 507 for connecting a frame. The hinge 507 is provided with a hinge axis. Referring to FIG. 6, the axle mount one 505 is provided with a brake attachment plate 506. In addition, a rear fork micro-swing limiting mechanism 304 for limiting the rear fork is arranged on the second side 303 of the first auxiliary frame. The rear fork micro-swing limiting mechanism 304 may be a clamping plate type ball sliding plate.

The chain wheel 13 is provided with a rear force application system, which comprises: a first spring core frame 701 coaxially arranged with the chain passing wheel 13, wherein a first torsion spring 702 is arranged on the first spring core frame 701, and a first pressure regulating bolt 703 is arranged on a first support leg of the first torsion spring 702; the second leg of the first torsion spring 702 is arranged on the axle of the rear wheel; a pull rod 704 is connected between the sprocket 13 and the axle mounting member one 505.

Referring to fig. 9 and 10, the front fork assembly includes: the front fork main frame 800 is provided with a front fork interlocking rod 801 and front fork movable inner tubes 802 symmetrically arranged on two sides of the front fork interlocking rod 801; the upper side and the lower side of the front fork multi-acting inner tube 802 are movably sleeved with a front fork fixing outer tube 804 through a sliding sleeve 803; and a second axle mounting piece 805 is arranged at the bottom end of the front fork fixing outer tube 804, and a brake mounting piece 807 is arranged on the second axle mounting piece 805.

A pressure front-mounted plate 808 is arranged on the front fork fixing outer tube 804; the pressure leading plate 808 bottom is provided with preceding afterburning system, includes equally: a second spring core frame fixed at the bottom end of the pressure front-end plate 808, wherein a second torsion spring is arranged on the second spring core frame, and a second pressure regulating bolt is arranged on a first support leg of the second torsion spring; and a second supporting leg of the second torsion spring is arranged on an axle of the front wheel.

Referring to fig. 10 and 12, the front fork assembly further includes a pre-tightening locking mechanism, which includes, from bottom to top: a lower hinge locking rod 8091 having one end coaxially disposed with the axle mounting hole of the axle mounting member two 805, a middle sliding locking rod 8092 having one end movably connected to the axle mounting member two 805, and an upper hinge locking rod 8093 having one end connected to the lower sliding sleeve 803; the other end of the lower hinge locking rod 8091 and the other end of the upper hinge locking rod 8093 are both movably arranged on the middle sliding locking rod 8092; the middle sliding locking rod 8092 is further provided with a locking bolt 8094.

A basket 3 is arranged at the front end of the frame 2, and front luggage racks 4 are symmetrically arranged on two sides of the basket 3; the rear end of the frame 2 is provided with a rear goods shelf 23, and side goods shelves 22 are symmetrically arranged on two sides of the rear goods shelf 23. A seat 24 is also provided on the frame 2. The brake attachment plate 506 is provided with a rear brake pad 17. The brake mounting 807 is provided with a front brake 9. The front fork assembly is provided with a front wheel 6 and the rear fork assembly is provided with a rear wheel 21.

The wheel type full-damping gravity-assisted bicycle with the independent suspension structure comprises a frame and a hinge (shown in figure 5), wherein the frame is connected with a front fork (shown in figure 3) and the hinge combined with the independent suspension (shown in figure 6) and a front wheel. The frame is connected to the rear wheel (see fig. 1) with a rear fork (fig. 4) and a hinge combined with an independent suspension (fig. 6) plus a tie rod (fig. 9), the rear fork (fig. 4) belonging to the suspension frame of the rear wheel, in order to guarantee the stability of the dynamic rear wheel. The rear wheel shaft is provided with a flywheel which is connected with the main faceplate through a chain to realize power transmission.

The invention discloses a gravity-assisted labor-saving comfortable bicycle with an independent suspension system, which has the following characteristics:

the front fork of the invention adopts a pressure front sliding sleeve type, is specially designed for mounting independent suspension, is simple and practical to manufacture, and is completely different from the existing built-in compression spring type, gas fork and oil fork. The rear fork assembly differs from a conventional static bicycle in that: the novel dynamic rear wheel suspension device is specially designed for the dynamic rear wheel, and also belongs to an independent suspension part, so that the dynamic rear wheel is ensured to be stable in the process of traveling. The frame is not used with the existing frame in that it is not directly connected with the rear wheel, but is linked with the axle of the rear wheel through an independent suspension and a pull rod, and a hinge for mounting a suspension bracket (a rear fork) is added.

The independent suspension mainly adopts a bridge type torsion spring which is like a spring steel plate on an automobile wheel train after being unfolded. The appearance is like a scissors shape, and the spring function and the labor-saving principle of the lever can be combined together skillfully and effectively and applied to the bicycle for the first time. Therefore, the bicycle is different from the conventional bicycle in nature and becomes static into dynamic. The independent suspension also designs pressure fine adjustment and overload protection. In addition, the transmission system adds an over-chain wheel to change a single chain into a double chain, which is a necessary design for dynamic rear wheel driving.

In addition, the bicycle belongs to rear wheel drive, and the pull rod is a necessary design for ensuring normal drive and dynamic state of the rear wheel because the rear wheel is dynamic. The early warning and locking mechanism of the spring is hinged, and is used for carrying out initial pressure pre-tightening control on a torsion spring of a suspension system, adjusting the amplitude of two wheels, finely adjusting the pre-tightening pressure, and locking the front wheel train and the rear wheel train to ensure the integrity of the whole vehicle.

The invention also discloses a front frame, two side luggage racks, a rear frame and a rear side bicycle frame.

Compared with the prior art, the invention has the following great differences and beneficial effects:

1 changes from static to dynamic.

2 the pressure transmission of the dead weight of the human body is conducted from the front of the center of the wheel train shaft of the existing bicycle, and the lever labor-saving principle is applied. Referring to fig. 1, 15 and 16, the front drag reduction angle between the front wheels and the ground is 16 ° and the rear drag reduction angle of the rear wheels is 22 °. About one third of the forward force generated by the self weight of the human body, which is generated by the force resolution principle, can be used for assisting the bicycle to move forward.

The two-wheel full-damping fastens two parts of the original bicycle to the whole front-mounted bearing points of the axle, so that a force arm at the center of the axle is generated, the front fork is designed into a lever sliding sleeve type and is combined with independent suspension to realize damping and decompose a forward component force of the dead weight of a human body, and therefore the purposes of: the load (the dead weight of the human body) is converted into a dynamic compression spring, and the spring vibration continuously stores and releases energy so that the lever can decompose about one third of the dead weight of the human body for the advancing direction.

In addition, a scissor type torsion spring is applied, the lever principle and the spring can be completely combined, and the pressure is transmitted from the axle center of the existing bicycle to a front point under the load state of the bicycle. The moment arm on the wheel train is formed in such a way that the two wheel train has a forward drag reduction angle due to the fact that the pressure point is arranged in front.

3, the movable hinge connection is used, and conditions are created for the length change of one side in the triangular relation formed by the framework structure. The design structure can be changed and freely moved.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A power saving comfortable bicycle using a scissors bridge spring design, comprising: the frame and set up handlebar and front fork subassembly on the frame cooperation, its characterized in that, the frame includes:

2. The power saving and comfort bicycle of claim 1, wherein the rear fork assembly comprises: the upper end and the lower end of the rear fork outer fixing micro-swing outer tube are sleeved on the rear fork movable inner tube through elastic sliding sleeves.

3. The power saving and comfort bicycle of claim 1, wherein the axle mounting member is provided with a brake connecting plate.

4. The labor-saving comfortable bicycle adopting the scissors-shaped bridge spring design as claimed in claim 1, wherein the second side of the first auxiliary frame is provided with a rear fork micro-swing limiting mechanism for limiting the rear fork.

5. The power saving and comfort bicycle of claim 1, wherein the front fork assembly comprises: the front fork locking bar and the front fork movable inner tubes are symmetrically arranged at two sides of the front fork locking bar; the upper side and the lower side of the front fork movable inner tube are movably sleeved with a front fork fixed outer tube through sliding sleeves;

6. The labor-saving comfortable bicycle adopting the scissors-shaped bridge spring design as claimed in claim 5, wherein the front fork fixing outer tube is provided with a pressure front-mounted plate;

7. The labor-saving comfortable bicycle adopting the scissors-shaped bridge spring design as claimed in claim 5, wherein the front fork assembly further comprises a pre-tightening locking mechanism, which comprises, from bottom to top: a lower hinge locking rod with one end coaxial with the axle mounting hole of the axle mounting piece II, a middle sliding locking rod with one end movably connected to the axle mounting piece II and an upper hinge locking rod with one end connected with the sliding sleeve; the other end of the lower hinge locking rod and the other end of the upper hinge locking rod are movably arranged on the middle sliding locking rod;

and the middle sliding locking rod is also provided with a locking bolt.

8. The labor-saving comfortable bicycle adopting the scissors-shaped bridge spring design as claimed in claim 1, wherein a basket is arranged at the front end of the frame, and front luggage racks are symmetrically arranged on two sides of the basket; the rear end of the frame is provided with a rear goods shelf, and two sides of the rear goods shelf are symmetrically provided with side goods shelves.