CN217022584U - Hand-pulling type double-layer folding bicycle - Google Patents

Abstract

The utility model discloses a hand-pulled double-layer folding vehicle, which comprises a front frame, a rear frame, a folding base, a front folding mechanism, a rear folding mechanism and front wheels, wherein the folding base comprises an upper folding base and a lower folding base, the upper folding base comprises a first folding bottom frame and a second folding bottom frame which are mutually hinged, the lower folding base comprises a third folding bottom frame and a fourth folding bottom frame which are mutually hinged, the first folding bottom frame and the third folding bottom frame are correspondingly hinged on the front frame, the second folding bottom frame and the fourth folding bottom frame are correspondingly hinged on the rear frame, one end of the folding supporting connecting rod is correspondingly hinged at the hinged part of the first folding bottom frame and the second folding bottom frame, the other end of the folding supporting connecting rod is correspondingly hinged at the hinged part of the third folding bottom frame and the fourth folding bottom frame, and the folding supporting connecting rod and the upper folding base and the lower folding base form a double-layer linkage structure. After adopting above-mentioned structure, have simple structure reasonable, folding convenient operation, use reliable and stable, the loading capacity is big, folding small, different article can deposit advantage such as layering.

Description

Hand-pulling type double-layer folding bicycle

Technical Field

The utility model relates to the technical field of carriers, in particular to a hand-pulling type double-layer folding carrier which is convenient to fold and store and can be used for placing articles in a layered mode.

Background

In order to facilitate the carrying of activities such as shopping, self-driving travel, suburb camping and the like, a plurality of consumers carry the carrying vehicle along with the vehicle, and the carrying vehicle can directly put articles on the carrying vehicle for dragging when shopping, self-driving travel and suburb camping, so that the trouble that the consumers need to carry a large bag or a small bag by hands can be solved. In order to solve the above problems, chinese patent publication No. CN209634530U discloses a foldable shopping cart, which comprises a front and a rear support, a foldable base, a left and a right foldable devices, and a front and a rear wheel, wherein the front and the rear wheel are correspondingly arranged on the front and the rear supports, the foldable base is formed by connecting a first chassis, a front foldable rod, a second chassis, a connecting shaft, a third chassis, a rear foldable rod, and a fourth chassis, the left foldable device is formed by connecting a first X-shaped foldable rod, a third X-shaped foldable rod, a front bag rod, and a front connecting rod, and the right foldable device is formed by connecting a second X-shaped foldable rod, a fourth X-shaped foldable rod, a rear bag rod, and a rear connecting rod; when the folding carrier is used, the storage bag is fixed in the frame, the folding belt at the bottom of the storage bag is lifted when the storage bag is folded, the front folding rod and the rear folding rod are driven to realize quick folding of the carrier, the folding carrier is small in folding size, convenient to carry and store, strong in rigidity of a vehicle body, good in overall stability and large in load capacity. But the following problems exist in the using process: all articles are completely stacked in the vehicle frame and cannot be separately placed, particularly, the articles such as food and aquatic products are easy to damage and pollute in the carrying process, and the requirement of separately storing different articles cannot be met. Aiming at the problems, many manufacturers and acquaintances develop and trial-produce the products, but no ideal products are produced yet.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide the hand-propelled double-layer folding vehicle which has a simple and reasonable structure, is convenient to fold and operate, is stable and reliable to use, has large carrying capacity and small folding volume, and can store different articles in a layered manner.

The technical scheme adopted by the utility model for solving the technical problems comprises a front frame, a rear frame, a folding base, a front folding mechanism, a rear folding mechanism, a front wheel and a rear wheel, wherein the front wheel and the rear wheel are correspondingly arranged on the front frame and the rear frame, folding base include folding base from top to bottom, folding support connecting rod, go up folding base and comprise mutual articulated first folding chassis and second folding chassis, folding base comprises mutual articulated third folding chassis and fourth folding chassis down, first folding chassis and third folding chassis correspond to articulate in the front on the frame, second folding chassis and fourth folding chassis correspond to articulate on the frame of back, the one end of folding support connecting rod corresponds the articulated department that articulates at first folding chassis and second folding chassis, the other end of folding support connecting rod corresponds the articulated department that articulates at third folding chassis and fourth folding chassis, folding support connecting rod constitutes double-deck linkage with folding base from top to bottom.

In a further scheme of the utility model, the front folding mechanism consists of a left front X-shaped folding frame and a right front X-shaped folding frame, the upper ends of the front parts of the left front X-shaped folding frame and the right front X-shaped folding frame are connected into a whole, the lower hinged part of the front part is correspondingly hinged on the front frame, the rear folding mechanism consists of a left rear X-shaped folding frame and a right rear X-shaped folding frame, the upper ends of the rear parts of the left rear X-shaped folding frame and the right rear X-shaped folding frame are connected into a whole, the lower hinged part of the rear part is correspondingly hinged on the rear frame, the upper and lower hinged parts of the rear parts of the left front X-shaped folding frame and the right front X-shaped folding frame are correspondingly hinged on the upper and lower hinged parts of the front parts of the left rear X-shaped folding frame and the right rear X-shaped folding frame, a connecting shaft is connected between the lower hinged parts of the left side and the right side, and the connecting shaft is supported on the lower folding base when the folding cart is unfolded.

According to a further scheme of the utility model, rear connecting sheets are correspondingly hinged between the left and right rear X-shaped folding frames and the rear frame.

According to a further scheme of the utility model, the lower part of the front frame is provided with a hinged seat, and the hinged seat is connected with a hand-pulling towing rod capable of pulling the shopping cart to walk.

In a further scheme of the utility model, the front frame and the rear frame are correspondingly provided with two front wheels and two rear wheels, and the front wheels are universal wheels.

After adopting above-mentioned structure, compared with prior art have following advantage and effect: firstly, because first folding chassis and third folding chassis correspond to articulate on preceding frame, second folding chassis and fourth folding chassis correspond to articulate on the frame of back, the one end of folding support connecting rod corresponds the articulated department that articulates at first folding chassis and second folding chassis, the other end of folding support connecting rod corresponds the articulated department that articulates at third folding chassis and fourth folding chassis, folding support connecting rod constitutes double-deck linkage structure with folding base from top to bottom, article can divide according to the difference class separately to place, satisfy the requirement that different article separately were deposited. And secondly, when the folding device is folded, the upper folding base is lifted from the middle, the upper folding base drives the lower folding rod base through the folding support connecting rod to realize quick folding, the folding volume is small, and the carrying and the storage are convenient. And thirdly, when the foldable bicycle is unfolded for use, the lower folding rod base is supported by the connecting shaft, and the upper folding base is pushed by the folding supporting connecting rod, so that the bicycle body has good rigidity, is integrally stable and reliable, and has large carrying capacity. And fourthly, the front frame is connected with a hand-pulling towing rod through a hinged seat, and the double-layer folding vehicle can be pulled to walk through the hand-pulling towing rod, so that the double-layer folding vehicle is convenient to walk.

Drawings

Fig. 1 is a schematic front view of the present invention in the unfolded state.

Fig. 2 is a schematic perspective view of the present invention in an unfolded state.

FIG. 3 is a schematic perspective view of the present invention in another direction when in the unfolded state.

Fig. 4 is a schematic perspective view of the semi-folded state of the present invention.

Fig. 5 is a schematic perspective view of the folded state of the present invention.

Wherein 1 hand power tow bar, 2 preceding frames, 3 preceding connection pieces, 4 preceding X-shaped folding legs, 5 folding bases on, 6 folding bases down, 7 folding support connecting rods, 8 back X-shaped folding legs, 9 back connection pieces, 10 back frames, 11 articulated seats, 12 front wheels, 13 connecting axles, 14 rear wheels, 15 first folding chassis, 16 second folding chassis, 17 third folding chassis, 18 fourth folding chassis.

Detailed Description

Fig. 1 to 5 show a specific embodiment of a hand-pulled double-layer foldable vehicle according to the present invention, which comprises front and rear frames 2, 10, folding bases, front and rear folding mechanisms, front and rear wheels 12, 14, wherein the front and rear wheels 12, 14 are correspondingly disposed on the front and rear frames 2, 10, the folding bases comprise upper and lower folding bases 5, 6, and folding support links 7, the upper folding base 5 comprises a first folding chassis 15 and a second folding chassis 16 hinged to each other, the lower folding base 6 comprises a third folding chassis 17 and a fourth folding chassis 18 hinged to each other, the first folding chassis 15 and the third folding chassis 17 are correspondingly hinged to the front frame 2, the second folding chassis 16 and the fourth folding chassis 18 are correspondingly hinged to the rear frame 10, one end of the folding support link 7 is correspondingly hinged to a hinge joint between the first folding chassis 15 and the second folding chassis 16, and the other end of the folding support link 7 is correspondingly hinged to a hinge joint between the third folding chassis 17 and the fourth folding chassis 18 The folding support connecting rod 7 and the upper and lower folding bases 5 and 6 form a double-layer linkage structure.

In order to facilitate folding and improve the stability and reliability of use, the front folding mechanism consists of a left front X-shaped folding frame and a right front X-shaped folding frame 4, the upper ends of the front parts of the left front X-shaped folding frame and the right front X-shaped folding frame 4 are connected into a whole through a front cross rod, the lower hinged parts of the front parts are correspondingly hinged on the front frame 2, the rear folding mechanism consists of a left rear X-shaped folding frame 8 and a right rear X-shaped folding frame 8, the upper ends of the rear parts of the left rear X-shaped folding frame and the right rear X-shaped folding frame 8 are connected into a whole through a rear cross rod, the lower hinged parts of the rear parts are correspondingly hinged on the rear frame 10, the upper and lower hinged parts of the rear parts of the left front X-shaped folding frame and the right front X-shaped folding frame 4 are correspondingly hinged on the upper and lower hinged parts of the front parts of the left rear X-shaped folding frame and the right rear X-shaped folding frame 8, a connecting shaft 13 is connected between the lower hinged parts of the left side and the right side, the connecting shaft 13 is supported on the lower folding base 6 when the folding vehicle is unfolded, the folding vehicle, the connecting shaft 13 not only can improve the stability of the vehicle frame, but also can play a role of supporting the lower folding base 6, the bearing capacity is improved, and the upper folding base 5 is supported on the underground folding base 6 through the folding support connecting rod 7. The left and right front X-shaped folding frames 4 are correspondingly hinged with the front frame 2 through front connecting sheets 3, and the left and right rear X-shaped folding frames 8 are correspondingly hinged with the rear frame 10 through rear connecting sheets 9.

In order to facilitate the dragging of the double-layer folding cart, the lower part of the front frame 2 is provided with a hinged seat 11, and the hinged seat 11 is connected with a hand-pulling towing rod 1 which can pull the shopping cart to walk.

For convenience of use, the front frame 2 and the rear frame 10 are correspondingly provided with two front wheels 12 and two rear wheels 14, and the front wheels 12 are universal wheels.

When the folding bag is used, the upper containing bag is generally fixed on the front cross bar, the rear cross bar and the upper folding base 5, the lower containing bag is fixed on the lower folding base 6, articles can be prevented from falling off in the carrying process, and the middle of the upper containing bag is provided with the folding handle belt for facilitating folding. When folding, upwards mention folding handle area, folding handle area drives first folding chassis 15 and the folding chassis 16 of folding base 5 and realizes folding, folding chassis 6's third folding chassis 17 and the folding chassis 18 of fourth folding chassis realize folding in step under folding supporting link 7 drives down, front and back frame 2, 10 are folding base 5 under about, 6 drive down to middle removal, about, preceding X shape folding leg 4 and about, back X shape folding leg 8 realize folding in step under front and back frame 2, 10 drive, folding easy operation is convenient, swiftly.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention in any way, and simple modifications, equivalent changes or modifications may be made without departing from the technical scope of the present invention.

Claims (5)

1. The utility model provides a double-deck folding car of hand-propelled, includes front and back frame (2, 10), folding base, front and back folding mechanism, front and back wheel (12, 14), and front and back wheel (12, 14) correspond and set up on front and back frame (2, 10), characterized by: the folding base comprises an upper folding base (5), a lower folding base (6) and a folding supporting connecting rod (7), the upper folding base (5) consists of a first folding chassis (15) and a second folding chassis (16) which are hinged to each other, the lower folding base (6) consists of a third folding chassis (17) and a fourth folding chassis (18) which are hinged to each other, the first folding chassis (15) and the third folding chassis (17) are correspondingly hinged to the front frame (2), the second folding chassis (16) and the fourth folding chassis (18) are correspondingly hinged to the rear frame (10), one end of the folding supporting connecting rod (7) is correspondingly hinged to the hinged part of the first folding chassis (15) and the second folding chassis (16), the other end of the folding supporting connecting rod (7) is correspondingly hinged to the hinged part of the third folding chassis (17) and the fourth folding chassis (18), the folding supporting connecting rod (7) and the upper folding base (5), the lower folding base (6) and the folding supporting connecting rod (7), 6) Forming a double-layer linkage structure.

2. The hand-pulled double-layer folding cart as claimed in claim 1, wherein: preceding folding mechanism constitute by controlling preceding X shape folding leg (4), the anterior upper end of left and right front X shape folding leg (4) is even as an organic whole, anterior articulated department is corresponding articulated in preceding frame (2) down, back folding mechanism comprises left and right back X shape folding leg (8), the rear portion upper end of left and right back X shape folding leg (8) is even as an organic whole, articulated department is corresponding articulated on rear frame (10) under the rear portion, the upper and lower articulated department at left and right front X shape folding leg (4) rear portion corresponds and articulates on the anterior upper and lower articulated department of left and right back X shape folding leg (8), be connected with connecting axle (13) between the lower articulated department of the left and right sides, connecting axle (13) support is folding base (6) down when the folding car expandes.

3. The hand-pulled double-layer folding cart as claimed in claim 2, wherein: the front connecting sheet (3) is correspondingly hinged between the left front X-shaped folding rack (4) and the front frame (2), and the rear connecting sheet (9) is correspondingly hinged between the left rear X-shaped folding rack (8) and the rear frame (10).

4. The hand-pulled double-layer folding cart as claimed in claim 1, 2 or 3, wherein: the lower part of the front frame (2) is provided with a hinged seat (11), and the hinged seat (11) is connected with a hand-pulling towing rod (1) which can pull the shopping cart to walk.

5. The hand-pulled double-deck foldable vehicle as claimed in claim 4, wherein: the front frame (2) and the rear frame (10) are correspondingly provided with two front wheels (12) and two rear wheels (14), and the front wheels (12) are universal wheels.

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