CN112606936B

CN112606936B - Folding rack, hinged sliding groove type folding bicycle and assembling method thereof

Info

Publication number: CN112606936B
Application number: CN202011577638.3A
Authority: CN
Inventors: 李建伟
Original assignee: Jiangsu Changxin Vehicle Equipment Co ltd
Current assignee: Jiangsu Changxin Vehicle Equipment Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2022-12-16
Anticipated expiration: 2040-12-28
Also published as: CN112606936A

Abstract

The invention discloses a hinged sliding groove type folding bicycle and an assembling method thereof. Articulated slotted folding bicycle divide into preceding frame, folding leg and back frame, and the folding leg includes: the first section body comprises a front head pipe, front double lugs and a front head fork, wherein the front double lugs and the front head fork are respectively fixed on two opposite sides of the front head pipe and are in an n shape, and the front head pipe is used for connecting a bowl group with a front frame of the folding bicycle; the second section body comprises a rear head pipe, a rear double lug and a rear swing tail, the rear head pipe is fixedly connected between the rear double lug, the rear double lug is rotatably connected with the front double lug, and the rear head pipe is used for pivoting a rear frame of the folding bicycle; and the third section body comprises a swinging slide rod, an eccentric groove and a swinging head fastening engine, the eccentric groove is rotatably connected with the front head fork, the eccentric groove is sleeved on the swinging slide rod, the swinging head fastening engine is used for locking the front head fork and the eccentric groove so as to fix the eccentric groove and the swinging slide rod, the rear swinging tail is rotatably connected with the swinging slide rod, and a swinging buckle of the swinging slide rod is used for buckling a rear frame. The folding frame with the three-segment structure has high folding speed and small volume after being folded.

Description

Folding frame, hinged sliding groove type folding bicycle and assembling method thereof

Technical Field

The invention belongs to the technical field of folding bicycles, and particularly relates to a folding rack, a hinged sliding groove type folding bicycle and an assembling method thereof.

Background

In real life, people often carry a suitcase or a baggage bag when going out for travel. This often causes inconvenience to travel, and sometimes people use a small-sized foldable luggage van sold on the market to haul luggage in order to reduce the load of luggage. However, the luggage cart is a piece of luggage, and can only be used for hauling the luggage but not for other purposes, thereby reducing the load and increasing the carrying burden. The bicycle is the most ideal tool for riding instead of walk, and the bicycle is very convenient for riding instead of walk when the bicycle travels to places with underdeveloped traffic or crowded traffic. However, it is not easy to carry a bicycle when going out, which not only increases the load of the bicycle, but also causes unnecessary troubles, such as the fact that the bicycle cannot be carried to a railway station.

With the above problems, portable bicycles, which are smaller and more portable, have become a new trend. The user can fold the portable bicycle and carry the portable bicycle at any time when taking a bus or a subway; and the portable bicycle can be placed in the motor vehicle in a smaller occupied space.

At present, the folding bicycle is slow in folding speed, large and heavy in folding volume and single in function.

Disclosure of Invention

(I) technical problems to be solved by the invention

How to accelerate the folding speed of the folding bicycle and reduce the volume after folding.

(II) the technical scheme adopted by the invention

In order to solve the technical problems, the invention adopts the following technical scheme:

a folding stand, comprising:

the first section comprises a front head pipe, front double lugs and a front head fork, wherein the front double lugs and the front head fork are respectively fixed on two opposite sides of the front head pipe and are in an n shape, and the front head pipe is used for connecting a front frame of the folding bicycle with a bowl group;

the second section body comprises a rear head pipe, rear double lugs and a rear shaking tail, the rear head pipe is fixedly connected between the rear double lugs, the rear double lugs are rotatably connected with the front double lugs, and the rear head pipe is used for pivoting a rear frame of the folding bicycle;

the third section body comprises a swing rod, an eccentric groove and a swing head fastening latch, the eccentric groove is connected with the front head fork in a rotating mode, the eccentric groove is connected with the swing rod in a sleeved mode, the swing head fastening latch is used for locking the front head fork, the eccentric groove enables the eccentric groove to be fixed with the swing rod, the rear swing tail is connected with the swing rod in a rotating mode, and the swing buckle of the swing rod is used for buckling the rear frame.

Preferably, one end of the rocking slide rod is tubular, a rocking slide shaft hole is arranged in the middle section of the rocking slide rod, the eccentric groove is tubular, an opening is axially formed in the pipe edge to form a hoop, the lugs on two sides of the opening are provided with eccentric shaft holes, and the axis of each hole is perpendicular to the axis of the eccentric groove; the shaking head fastening latch penetrates through an eccentric shaft hole of the eccentric slot and also penetrates through a shaft hole of the front head fork so as to lock or loosen the front head fork and the shaking sliding rod.

Preferably, the third segment further comprises a sliding resistance plate, the sliding resistance plate is fixed to a sliding head of the sliding rod, the sliding resistance plate is located between two support pieces of the front head fork when the whole vehicle is unfolded, and when the sliding rod is in a locked state, the sliding resistance plate is clamped by the two support pieces to resist sliding so as to strengthen folding fastening when the sliding resistance plate is unfolded.

Preferably, the middle section of the rocking slide bar is provided with a rocking slide shaft hole, the other end of the rocking slide bar is a double-tongue-shaped rocking slide fastener, and the tongue is provided with a fastener notch; the rear swing tail is inserted into the double-tongue piece and is connected with the swing shaft hole in a shaft mode, and when the positioning fastening of the rear frame is connected with the swing buckle of the double-tongue piece in a buckling mode, the double-tongue piece clamps the rear swing tail tightly so as to strengthen the whole-vehicle fastening.

The application also discloses hinge slotted folding bicycle includes:

any of the above folding legs;

the front frame comprises front wheels, a front fork rod and a handle disc, the front wheels and the handle disc are respectively arranged on the front fork rod, and the front head pipe bowl group is connected with the front fork rod;

the rear frame comprises rear wheels, a rear fork rod, a rear seat pipe, a positioning fastening latch, a rear head and a head sealing ring, wherein the positioning fastening latch is fixed on the rear seat pipe, the rear wheels are installed on the rear fork rod and fixed with the rear fork rod, the rear head is fixed with the rear seat pipe, the rear head pipe is pivoted with the rear head, the head sealing ring is welded at the rear head end, and a sliding buckle of a sliding rocker rod is fastened on the positioning fastening latch of the rear frame. .

The application also discloses an assembling method of the hinged sliding groove type folding bicycle, which comprises the following steps:

assembling a folding frame:

a front head fork of the first section body is axially connected with an eccentric lug shaft hole of the eccentric groove, and a swing head fastening holder is inserted into the eccentric lug shaft hole and is also inserted into the shaft hole of the front head fork;

the rear double lugs of the second section body are connected with the front double lugs of the first section body in a shaft mode, and a connecting shaft is inserted;

inserting a shaking head of a shaking slide rod of the third section body into the eccentric groove to enable the shaking slide rod to slide and shake;

connecting the third section of body rocking slide bar with the rear rocking tail shaft of the second section of body, and inserting a connecting shaft; a rocking slide shaft hole and a rear rocking tail shaft hole of the rocking slide bar;

assembling the whole vehicle:

the front frame is pivoted with the front tube bowl group of the first section body;

inserting the rear headstock into a rear headstock pipe of the second section body for pivoting, and welding the end socket ring on the rear headstock so that the rear headstock can only coaxially rotate in the rear headstock pipe and cannot be separated from the rear headstock pipe;

and the rocking and sliding buckle of the third segment body is buckled with the positioning and fastening buckle.

(III) advantageous effects

The invention discloses a hinged sliding groove type folding bicycle and an assembling method thereof, compared with the prior art, the hinged sliding groove type folding bicycle has the following advantages and beneficial effects:

(1) The folding speed of the whole vehicle is high, and the whole vehicle is small and convenient to carry after being folded.

(2) The folding frame has a three-section structure and the combination of the rocking slide bar and the eccentric groove, and the design is novel and simple.

(3) Can form a chair or a trolley, and has simple process, safety and reliability.

Drawings

FIG. 1 is a schematic view of a foldable bicycle in accordance with an embodiment of the present invention;

FIG. 2 is a schematic view of a frame section of the foldable bicycle of the present invention;

FIG. 3 is a schematic view of the foldable stand of the foldable bicycle in accordance with the embodiment of the present invention;

FIG. 4 is a second block diagram of the foldable bicycle in accordance with the embodiment of the present invention;

FIG. 5 is a pictorial view of an eccentric slot of the foldable bicycle in accordance with the embodiment of the present invention;

FIG. 6 is a combination of the first section and the third section of the foldable bicycle in accordance with the embodiment of the present invention;

FIG. 7 is an expanded riding object diagram of the foldable bicycle of the embodiment of the present invention;

FIG. 8 is a pictorial view illustrating a folding process of the foldable bicycle in accordance with the embodiment of the present invention;

FIG. 9 is a schematic view of the foldable bicycle of the present invention showing the folding of the pair of shafts.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Specifically, as shown in fig. 1 and 2, the foldable bicycle of the present embodiment includes three main parts, namely a front frame 100, a folding leg 200, and a rear frame 300, wherein the folding leg 200 is a main improved component. The front frame 100 of the present application includes a front fork 11, a front fork ring 12, a handle plate 13, and a front wheel 14. The rear frame comprises a rear wheel 30, a head sealing ring 31, a rear headstock 32, a positioning and fastening latch 33, a rear fork ring 34, a rear fork rod 35 and a rear seat tube 36.

Specifically, as shown in fig. 3 and 4, the folding leg 200 includes three major parts, namely a first segment 210, a second segment 220 and a third segment 230. The first section 210 comprises a front head tube 211, front double lugs 212 and a front head fork 213, the front double lugs 212 and the front head fork 213 are respectively fixed on two opposite sides of the front head tube 211 and are in an n shape, and the front head tube 211 is used for connecting a bowl group with a front frame 100 of a bicycle; the second section 220 comprises a rear head pipe 221, a rear double lug 222 and a rear swing tail 223, wherein the rear double lug 222 and the rear swing tail 223 are positioned at two opposite ends of the rear head pipe 221, the rear head pipe 221 is fixedly connected in the middle of the rear double lug 222, the rear double lug 222 is in shaft connection with the front double lug 212, and the rear head pipe 221 is used for pivotally connecting a rear frame 300 of the folding bicycle; the third segment 230 comprises a rocking slide bar 231, an eccentric groove 232 and a shaking head fastening latch 233, wherein an eccentric shaft lug 2321 of the eccentric groove 232 is coupled to the front head fork 213, the eccentric groove 232 is sleeved on the rocking slide head 2311, the shaking head fastening latch 233 is used for locking the eccentric groove 232 so as to fix the front head fork 213, the eccentric groove 232 and the rocking slide bar 231, and the rear shaking tail 223 is coupled to the rocking slide shaft 2312. The rocking slide bar 2313 of the rocking slide bar 231 is used for buckling the rear frame 300. Further, the third segment 230 further includes a slide-preventing plate 2314, the slide-preventing plate 2314 is fixed to the sliding head 2311 of the sliding rod 231, and the slide-preventing plate 2314 is located between two support plates of the front head fork 213 when the whole vehicle is unfolded to strengthen the fastening when the whole vehicle is unfolded.

Illustratively, as shown in fig. 5 and 6, the eccentric groove 232 adopts a hoop structure. Specifically, the eccentric slot 232 includes a cylinder body 2322 and two eccentric shaft lugs 2321 fixed to the outer surface of the cylinder body 2322, the cylinder body 2322 is provided with an axially extending gap 2323, the gap 2323 is located between the eccentric shaft lugs 2321, the cylinder body 2322 is sleeved on the outer surface of the rocking head 2311, and the rocking head fastening latch 233 is axially connected to the eccentric shaft lugs 2321 to lock or unlock the cylinder body 2322. When the shaking head fastening pawl 233 locks the cylinder segment 2322, the cylinder segment 2322 and the shaking rod 231 are relatively fixed; when the oscillating-head fastening catch 233 releases the cylinder segment 2322, the oscillating bar 231 can slide inside the cylinder segment 2322.

Further, the front head fork 213 is two support plates spaced from each other, the lug 2321 is located between the two support plates, and the front head fork 213 and the two lugs 2321 are respectively provided with a corresponding shaft hole, the oscillating fastening pawl 233 penetrates through the shaft holes of the front head fork 213 and the lug 2321, and the oscillating fastening pawl 233 can rotate relative to the two support plates, and the axial hole of the oscillating fastening pawl 233 and the shaft hole of the lug 2321 are coaxial, so that when folding is performed, the oscillating rod 231 can rotate around the front head fork 213, and when the oscillating fastening pawl 233 releases the cylinder section 2322, the oscillating rod 231 can slide relative to the front head fork 213, thereby achieving folding.

Furthermore, one end of the sliding rod 231 is a sliding head 2311, the middle section of the rod is provided with a sliding shaft 2312, the other end of the sliding rod is a sliding button 2313, the sliding button 2313 is in a double-tongue sheet shape, and the tongue is provided with a buckle gap; the rear swing tail 223 is inserted into the double-tongue piece and coupled to the swing shaft 2312, and the positioning fastening latch 33 of the rear frame 300 is fastened to the swing buckle 2313. The securing catch 33 is positioned so that the double tongue grips the rear rocker 223 to enhance the full car securing.

The folding rack disclosed by the embodiment is divided into a three-segment structure, wherein the first segment plays a supporting role, the second segment and the third segment can rotate and slide relative to the first segment, and two ends of the second segment are respectively connected with the first segment and the third segment in a rotating manner, so that the second segment and the third segment can be folded and folded rapidly, and the folded volume is reduced.

As shown in fig. 7, 8 and 9, the process of unfolding and folding the full real object vehicle is illustrated.

In another embodiment, a method of assembling a foldable bicycle comprises the steps of:

assembling a folding frame:

the front fork 213 of the first segment 210 is coupled to the lug 2321 of the eccentric groove 232, and the swing head fastening catch 233 is inserted;

the rear double lugs 222 of the second segment body 220 are axially connected with the front double lugs 212 of the first segment body 210, and a connecting shaft is inserted;

the rocking bar 231 of the third block 230 is inserted into the eccentric groove 232 to be able to slide and rock;

the rocking shaft 2312 in the rocking bar 231 of the third segment body 230 is coupled with the rear rocking tail 223 of the second segment body 220 by a shaft, and the connecting shaft is inserted;

assembling the whole vehicle:

connecting the front frame 100 with the front head pipe 211 bowl group of the first section 210;

the rear head 32 of the rear frame 300 is inserted into the rear head pipe 221 of the second section 220 to form a pivot joint, and the head sealing ring 31 is welded on the rear head 32, so that the rear head 32 can only coaxially rotate in the rear head pipe 221 and can not be separated from the rear head pipe 221;

the positioning and fastening latch 33 is welded to the rear seat tube 36, and the rocking slider 2313 of the rocking bar 231 is fastened to the positioning and fastening latch 33.

The folding process is as follows: when the bicycle is folded, the left-hand handle disc 13 loosens the positioning fastening latch 33 and the rocker fastening latch 233, the right-hand handle tube base is pressed backwards by a small angle to separate the swing buckle 2313 from the positioning fastening latch 33, the front frame 100 and the rear frame 300 are rotated to form an angle of 90 degrees with the plane of the folding frame 200, the rear frame 300 continues to drive the swing rod 231 to slide and rotate under the natural gravity, the front frame 100 and the rear frame 300 continue to approach each other to complete the axial folding, the rocker fastening latch 233 is locked, and the disc 13 is taken down and inserted into the front fork ring 12 and the rear fork ring 34 to fix the folded state. When the bicycle is unfolded, the riding state can be formed by reverse operation.

Although a few embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents, and that such changes and modifications are intended to be within the scope of the invention.

Claims

1. A folding stand, comprising:

the third section comprises a rocking slide bar, an eccentric groove and a rocking head fastening device, wherein the eccentric groove is rotatably connected with the front head fork, the eccentric groove is sleeved on the rocking slide bar, the rocking head fastening device is used for locking the front head fork and the eccentric groove so that the eccentric groove is fixed with the rocking slide bar, the rear rocking tail is rotatably connected with the rocking slide bar, and a rocking slide buckle of the rocking slide bar is used for buckling the positioning fastening device of the rear frame;

the third segment body further comprises a sliding resistance plate, the sliding resistance plate is fixed to a sliding shaking head of the sliding shaking rod, the sliding resistance plate is located between the two support pieces of the front head fork when the whole vehicle is unfolded, and when the sliding shaking rod is in a locking state, the sliding resistance plate is clamped by the two support pieces to resist sliding so as to strengthen folding and fastening when the sliding shaking rod is unfolded.

2. The folding leg according to claim 1, wherein one end of the rocking slide bar is tubular, a rocking slide shaft hole is arranged in the middle section of the rocking slide bar, the eccentric slot is tubular, the tube side is axially opened to form a hoop, the lugs at two sides of the opening are provided with eccentric shaft holes, and the hole axis of the lugs is perpendicular to the axis of the eccentric slot; the shaking head fastening latch penetrates through an eccentric shaft hole of the eccentric slot and also penetrates through a shaft hole of the front head fork so as to lock or loosen the front head fork and the shaking slide rod.

3. The folding leg according to claim 1, wherein a rocking shaft hole is formed in the middle section of the rocking slide bar, a double-tongue-shaped rocking slide fastener is arranged at the other end of the rocking slide bar, and the tongue is provided with a fastener notch; the rear swing tail is inserted into the double-tongue piece and is connected with the swing shaft hole in a shaft mode, and when the positioning fastening of the rear frame is connected with the swing buckle of the double-tongue piece in a buckling mode, the double-tongue piece clamps the rear swing tail tightly so as to strengthen the whole-vehicle fastening.

4. A folding bicycle, comprising:

the folding leg of any one of claims 1 to 3;

the rear frame comprises a rear wheel, a rear fork rod, a rear seat pipe, a positioning fastening latch, a rear head and a head sealing ring, wherein the positioning fastening latch is fixed on the rear seat pipe, the rear wheel is installed on the rear fork rod, the rear head is fixed with the rear seat pipe, the rear head pipe is pivoted to the rear head, the head sealing ring is welded to the rear head end, and a sliding buckle of the sliding rocker rod is fastened to the positioning fastening latch of the rear frame.

5. A method of assembling a foldable bicycle according to claim 4, comprising:

assembling a folding frame:

a front head fork of the first segment body is axially connected with an eccentric lug shaft hole of the eccentric groove, and the shaking head fastening core is inserted into the eccentric lug shaft hole and is simultaneously inserted into the shaft hole of the front head fork;

connecting a rocking sliding shaft of a rocking sliding rod of the third section body with a rear rocking tail shaft of the second section body, and inserting a connecting shaft into a rocking sliding shaft hole and a rear rocking tail shaft hole of the rocking sliding rod;

assembling the whole vehicle:

and (4) buckling the swing buckle of the third section body with the positioning fastening latch of the rear frame.