CN210101686U

CN210101686U - Folding bicycle

Info

Publication number: CN210101686U
Application number: CN201920655031.9U
Authority: CN
Inventors: 李五红
Original assignee: Xiamen Jinjiahong Rain Gear Co Ltd
Current assignee: Xiamen Jinjiahong Rain Gear Co Ltd
Priority date: 2019-05-08
Filing date: 2019-05-08
Publication date: 2020-02-21
Anticipated expiration: 2029-05-08

Abstract

The utility model discloses a folding bicycle, including fore-stock, after-poppet, chassis subassembly, the chassis subassembly includes preceding chassis, back chassis, and the wheel is equipped with respectively to fore-stock and after-poppet bottom, and preceding chassis front end articulates in the fore-stock, and the back chassis rear end articulates in the after-poppet, and hinge connection is passed through with the after-poppet front end to preceding chassis rear end, and this hinge allows the chassis subassembly upwards to fold up or expand downwards and keep in the expansion state. Because preceding chassis and back chassis pass through the hinge is connected, and not direct articulated for can keep in the expansion state after the chassis subassembly launches downwards, can not sink downwards, consequently, the utility model is used for make preceding chassis and back chassis keep in the spare part greatly reduced of expansion state, and assemble simple and convenient, cost greatly reduced.

Description

Folding bicycle

Technical Field

The utility model relates to a folding bicycle.

Background

The folding cart is a short-distance transport cart, and is widely used when carrying goods, carrying children out, shopping and the like. The invention application with Chinese patent application number 201710417299.4 discloses a folding vehicle, which comprises a vehicle frame, an underframe assembly, two groups of side wall assemblies and the like, wherein the vehicle frame comprises a front frame and a rear frame which are oppositely arranged, the underframe assembly comprises a front underframe assembly and a rear underframe assembly which are hinged between the front frame and the rear frame and are mutually hinged, each group of side wall assemblies respectively comprises a rear underframe cross rod support and a front underframe cross rod support which are mutually hinged and form a certain angle, the front underframe cross rod support is hinged to the front frame through a front connecting piece of a main side wall assembly, the rear underframe cross rod support is hinged to the rear frame through a rear connecting piece of the main side wall assembly, the rear underframe cross rod support and the front underframe cross rod support are hinged to underframe cross rod connecting pieces, an underframe cross rod is connected between the two underframe cross rod connecting pieces, and. The chassis assembly of the folding bicycle is limited by a plurality of parts such as a rear chassis cross rod support, a front chassis cross rod support and a chassis cross rod after being unfolded downwards, so that the front chassis assembly and the rear chassis assembly are prevented from being stressed and collapsing downwards after being unfolded. Obviously, the folding bicycle has more parts for keeping the unfolded state after the underframe assembly is unfolded, and has the disadvantages of complex assembly and high cost.

SUMMERY OF THE UTILITY MODEL

The utility model provides a folding bicycle, which overcomes the defects of the folding bicycle in the prior art.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a folding bicycle, includes fore-stock, after-poppet, chassis subassembly, and the chassis subassembly includes preceding chassis, after-poppet, and the wheel is equipped with respectively to fore-stock and after-poppet bottom, and preceding chassis front end articulates in the fore-stock, and after-poppet rear end articulates in the after-poppet, and preceding chassis rear end passes through hinged joint with the after-poppet front end, and this hinge allows the chassis subassembly upwards to fold up or expand downwards and keep in the state of expanding.

Furthermore, the hinge comprises a first hinge arm and a second hinge arm, one end of the first hinge arm is fixedly connected with the rear end of the front chassis, one end of the second hinge arm is fixedly connected with the front end of the rear chassis, the other end of the first hinge arm is hinged with the other end of the second hinge arm, and the other end of the first hinge arm and the other end of the second hinge arm are matched with a separable locking structure, so that the chassis assembly is unfolded downwards and then kept in an unfolded state.

Further, the locking structure is located on the hinge shaft of the first hinge arm and the second hinge arm, and includes an end surface of one of the other end of the first hinge arm and the other end of the second hinge arm, and a boss provided on the other of the other end of the first hinge arm and the other end of the second hinge arm, the boss extending toward the end surface so as to be capable of abutting against the end surface.

Furthermore, the foldable bicycle further comprises two side supports which can be folded upwards or unfolded downwards, wherein the two side supports are respectively positioned on the left side and the right side of the underframe assembly, and each side support is respectively hinged with the front support and the rear support.

Furthermore, the brackets on the two sides respectively comprise a first supporting rod, a second supporting rod, a third supporting rod and a fourth supporting rod, the first supporting rod and the second supporting rod are hinged to form an X shape, the bottom end of the first supporting rod is hinged to the front bracket, the top end of the first supporting rod is hinged to one end of the fourth supporting rod, and the other end of the fourth supporting rod is hinged to the rear bracket; the bottom end of the second supporting rod is hinged to the rear support, the top end of the second supporting rod is hinged to one end of the third supporting rod, and the other end of the third supporting rod is hinged to the front support.

Furthermore, the front support and the rear support respectively comprise a left upright rod, a right upright rod and a cross rod, the cross rod is connected with the two upright rods, and the bottom ends of the two upright rods or the two ends of the cross rod are respectively provided with the wheels; the left end and the right end of the front underframe are respectively hinged with the two vertical rods of the front support, and the left end and the right end of the rear underframe are respectively hinged with the two vertical rods of the rear support.

Furthermore, the front support and the rear support respectively comprise a left upright rod, a right upright rod and a cross rod, the cross rod is connected with the two upright rods, and the bottom ends of the two upright rods or the two ends of the cross rod are respectively provided with the wheels; the left end and the right end of the front underframe are respectively hinged with the two upright rods of the front bracket, and the left end and the right end of the rear underframe are respectively hinged with the two upright rods of the rear bracket; and each side bracket is hinged with the vertical rod corresponding to the front bracket and the vertical rod corresponding to the rear bracket respectively.

Furthermore, the front support and the rear support respectively comprise a left upright rod, a right upright rod and a cross rod, the cross rod is connected with the two upright rods, and the bottom ends of the two upright rods or the two ends of the cross rod are respectively provided with the wheels; the left end and the right end of the front underframe are respectively hinged with the two upright rods of the front bracket, and the left end and the right end of the rear underframe are respectively hinged with the two upright rods of the rear bracket; the bottom end of the first supporting rod and the other end of the third supporting rod are hinged to the corresponding vertical rod of the front support respectively, and the bottom end of the second supporting rod and the other end of the fourth supporting rod are hinged to the corresponding vertical rod of the rear support respectively.

Further, the front support and/or the rear support are/is hinged with an operating handle, and the operating handle can rotate up and down.

Further, the number of the hinges is at least two, and the at least two hinges are distributed along the left-right direction.

The utility model discloses following beneficial effect has:

1. because preceding chassis and back chassis pass through the hinge is connected, and not direct articulated for can keep in the expansion state after the chassis subassembly launches downwards, can not sink downwards, consequently, compare in prior art, the utility model is used for make the chassis subassembly keep in the spare part greatly reduced of expansion state, and assemble simple and convenient, cost greatly reduced.

2. The hinge preferably comprises the first hinge arm and the second hinge arm, and has the characteristics of simple structure, firmness, durability and the like.

3. The arrangement of the side bracket can further improve the stability of the whole structure; the side support preferably comprises the first support rod, the second support rod, the third support rod and the fourth support rod, and is simple in structure and convenient to fold.

The present invention will be described in further detail with reference to the accompanying drawings and examples; however, the folding cart of the present invention is not limited to the embodiment.

Drawings

Fig. 1 is a schematic structural view of the present invention in an expanded state;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

fig. 3 is a schematic structural view of the present invention in a transition state between the unfolded state and the folded state;

fig. 4 is a schematic structural view of the present invention in a folded state.

Detailed Description

Embodiment, please refer to fig. 4, the utility model discloses a folding bicycle, including fore-stock 1, after-poppet 2, chassis subassembly, the chassis subassembly includes preceding chassis 5, after-poppet 6, wheels 3, 4 are equipped with respectively to fore-stock 1 and after-poppet 2 bottom, and preceding chassis 5 front end articulates in fore-stock 1, and after-poppet 6 rear end articulates in after-poppet 2, and preceding chassis 5 rear end passes through hinge 7 with after-poppet 2 front end and is connected, and this hinge 7 allows the chassis subassembly upwards to fold up or launch downwards and keep in the expansion state. Front truck 1, after-poppet 2, preceding chassis 5, back chassis 6 are so defined, and when the user pushed and pulled this folding vehicle, be close to the user be after-poppet 2, back chassis 6, keep away from the user be before-poppet 1, preceding chassis 5, but technical personnel in the art can make clear and understand that "preceding" and "back" are relatively speaking, are along with user's position is definite, and is not fixed unchangeable, consequently, do not constitute right the utility model discloses technical scheme's restriction.

In this embodiment, the hinge 7 includes a first hinge arm 71 and a second hinge arm 72, one end of the first hinge arm 71 is fixedly connected (by riveting or welding or other fixing methods) to the rear end of the front chassis 5, one end of the second hinge 7 is fixedly connected (by riveting or welding or other fixing methods) to the front end of the rear chassis 6, the other end of the first hinge arm 71 is hinged to the other end of the second hinge arm 72, and the other ends of the first hinge arm 71 and the second hinge arm 72 are fitted with a separable locking structure, so that the chassis assembly is unfolded downward and then kept in an unfolded state. The locking structure is located above the hinge axis of the first hinge arm 71 and the second hinge arm 72, and includes an end surface 711 at the other end of the first hinge arm 71, and a boss 721 provided at the other end of the second hinge arm 72, the boss 721 extending toward the end surface 711 so as to be able to abut against the end surface 711. In other embodiments, the locking structure includes a plug hole respectively disposed at the other end of the first hinge arm and the other end of the second hinge arm, and a rod member capable of passing through the two plug holes, such as a bolt, and the rod member may further be screwed with a nut, etc. to prevent the rod member from falling off.

In this embodiment, the utility model discloses still including the both sides support 8 that can upwards fold up or expand downwards, this both sides support 8 is located respectively the left side and the right side of the chassis subassembly that preceding chassis 5 and back chassis 6 constitute, and each side support 8 respectively with fore-stock 1, after-poppet 2 are articulated mutually.

In this embodiment, the two side brackets 8 respectively include a first supporting rod 81, a second supporting rod 82, a third supporting rod 83 and a fourth supporting rod 84, the first supporting rod 81 and the second supporting rod 82 are hinged to form an X shape, the bottom end of the first supporting rod 81 is hinged to the front bracket 1, the top end of the first supporting rod 81 is hinged to one end of the fourth supporting rod 84, and the other end of the fourth supporting rod 84 is hinged to the rear bracket 2; the bottom end of the second supporting rod 82 is hinged to the rear support 2, the top end of the second supporting rod 82 is hinged to one end of the third supporting rod 83, and the other end of the third supporting rod 83 is hinged to the front support 1.

In this embodiment, the front bracket 1 includes two left and right vertical rods 11 and a cross rod 12, and the cross rod 12 connects the two vertical rods 11. The rear support 2 also comprises a left vertical rod 21, a right vertical rod 21 and a cross rod 22, the cross rod 22 is connected with the two vertical rods 21, the bottom ends of the two vertical rods 11 of the front support 1 are respectively provided with the wheels 3, and the two ends of the cross rod 22 of the rear support 2 are respectively provided with the wheels 4. The left end and the right end of the front underframe 5 are respectively hinged with two upright rods 11 of the front bracket 1, and the left end and the right end of the rear underframe 6 are respectively hinged with two upright rods 21 of the rear bracket 2; the bottom end of the first supporting rod 81 and the other end of the third supporting rod 83 are respectively hinged with the corresponding vertical rod 11 of the front support 1, and the bottom end of the second supporting rod 82 and the other end of the fourth supporting rod 84 are respectively hinged with the corresponding vertical rod 21 of the rear support 2.

In this embodiment, the rear bracket 2 is hinged with an operating handle 9, specifically, the bottom end of the operating handle 9 is hinged with the middle side surface of the cross bar 22 of the rear bracket 2 and can rotate up and down.

In the present embodiment, the number of the hinges 7 is two, but is not limited thereto, and in other embodiments, the number of the hinges 7 is three or four, and the like. The front underframe 5 and the rear underframe 6 are respectively formed by connecting a plurality of transverse supporting rods and a plurality of longitudinal supporting rods, the two hinges 7 are distributed along the left and right directions, and each hinge 7 respectively connects the corresponding longitudinal supporting rods on the periphery of the front underframe 5 and the periphery of the rear underframe 6.

In this embodiment, the present invention further includes a carrying frame (not shown) made of flexible material, such as cloth, and the carrying frame is installed between the front bracket 1 and the rear bracket 2 and supported by the bottom bracket assembly. The carrying frame can be correspondingly deformed along with the folding or unfolding of the underframe assembly.

The utility model discloses a folding bicycle, its expansion state is as shown in figure 1, and at this moment, the chassis subassembly expandes into the horizontality, and the first hinge arm 71 and the second hinge arm 72 of each hinge 7 are "one" font, just boss 721 with terminal surface 711 is very close, when making preceding chassis 5 and the bearing of back chassis 6, boss 721 can support and lean on terminal surface 711 to the chassis subassembly that chassis 5 and back chassis 6 constitute sinks downwards before the restriction. The X-shaped structure formed by the first strut 81 and the second strut 82 of each side frame 8 is in a developed state, and the third strut 83 and the fourth strut 84 are in a horizontal state.

When folding is needed, force is applied upwards at the joint of the front chassis 5 and the rear chassis 6, so that the first hinge arm 71 and the second hinge arm 72 of each hinge 7 rotate downwards respectively, and thus the chassis assembly is folded upwards. Meanwhile, the brackets 8 on both sides are folded upwards, and in the process of folding, the front bracket 1 and the rear bracket 2 are gradually closed, as shown in fig. 3. After folding, the whole folding vehicle is in a state shown in fig. 4, and the whole volume becomes very small, so that the folding vehicle is convenient to store and carry.

In other embodiments, the wheels at the bottom end of the front support and/or the wheels at the bottom end of the rear support are provided with brake assemblies.

The above embodiments are only used to further illustrate the present invention, but the present invention is not limited to the embodiments, and any simple modification, equivalent change and modification of the technical entity of the present invention to the above embodiments all fall into the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a folding bicycle, includes fore-stock, after-poppet, chassis subassembly, and the chassis subassembly includes preceding chassis, back chassis, and the wheel is equipped with respectively to fore-stock and after-poppet bottom, and preceding chassis front end articulates in the fore-stock, and back chassis rear end articulates in the after-poppet, its characterized in that: the rear end of the front underframe is connected with the front end of the rear bracket through a hinge, and the hinge allows the underframe assembly to be folded upwards or unfolded downwards and kept in an unfolded state.

2. The folding cart of claim 1, wherein: the hinge comprises a first hinge arm and a second hinge arm, one end of the first hinge arm is fixedly connected with the rear end of the front chassis, one end of the second hinge arm is fixedly connected with the front end of the rear chassis, the other end of the first hinge arm is hinged with the other end of the second hinge arm, and the other end of the first hinge arm and the other end of the second hinge arm are matched with a separable locking structure, so that the chassis assembly is unfolded downwards and then kept in an unfolded state.

3. The folding cart of claim 2, wherein: the locking structure is positioned on the hinged shaft of the first hinge arm and the second hinge arm and comprises an end surface of one of the other end of the first hinge arm and the other end of the second hinge arm and a boss arranged on the other one of the other end of the first hinge arm and the other end of the second hinge arm, and the boss extends towards the end surface so as to be abutted against the end surface.

4. The folding cart of claim 1, wherein: the foldable chassis assembly is characterized by further comprising two side supports capable of being folded upwards or unfolded downwards, the two side supports are respectively located on the left side and the right side of the chassis assembly, and each side support is hinged with the front support and the rear support.

5. The folding cart of claim 4, wherein: the two side supports respectively comprise a first support rod, a second support rod, a third support rod and a fourth support rod, the first support rod and the second support rod are hinged into an X shape, the bottom end of the first support rod is hinged to the front support, the top end of the first support rod is hinged to one end of the fourth support rod, and the other end of the fourth support rod is hinged to the rear support; the bottom end of the second supporting rod is hinged to the rear support, the top end of the second supporting rod is hinged to one end of the third supporting rod, and the other end of the third supporting rod is hinged to the front support.

6. The folding cart according to any of claims 1-3, characterized in that: the front support and the rear support respectively comprise a left upright rod, a right upright rod and a cross rod, the cross rod is connected with the two upright rods, and the bottom ends of the two upright rods or the two ends of the cross rod are respectively provided with the wheels; the left end and the right end of the front underframe are respectively hinged with the two vertical rods of the front support, and the left end and the right end of the rear underframe are respectively hinged with the two vertical rods of the rear support.

7. The folding cart of claim 4, wherein: the front support and the rear support respectively comprise a left upright rod, a right upright rod and a cross rod, the cross rod is connected with the two upright rods, and the bottom ends of the two upright rods or the two ends of the cross rod are respectively provided with the wheels; the left end and the right end of the front underframe are respectively hinged with the two upright rods of the front bracket, and the left end and the right end of the rear underframe are respectively hinged with the two upright rods of the rear bracket; and each side bracket is hinged with the vertical rod corresponding to the front bracket and the vertical rod corresponding to the rear bracket respectively.

8. The folding cart of claim 5, wherein: the front support and the rear support respectively comprise a left upright rod, a right upright rod and a cross rod, the cross rod is connected with the two upright rods, and the bottom ends of the two upright rods or the two ends of the cross rod are respectively provided with the wheels; the left end and the right end of the front underframe are respectively hinged with the two upright rods of the front bracket, and the left end and the right end of the rear underframe are respectively hinged with the two upright rods of the rear bracket; the bottom end of the first supporting rod and the other end of the third supporting rod are hinged to the corresponding vertical rod of the front support respectively, and the bottom end of the second supporting rod and the other end of the fourth supporting rod are hinged to the corresponding vertical rod of the rear support respectively.

9. The folding cart of claim 1, wherein: the front support and/or the rear support are/is hinged with an operating handle, and the operating handle can rotate up and down.

10. The folding cart of claim 1, wherein: the number of the hinges is at least two, and the at least two hinges are distributed along the left-right direction.