CN117485456A - Folding structure and folding vehicle - Google Patents

Abstract

The invention discloses a folding structure and a folding vehicle, wherein the folding structure comprises a first folding seat, a second folding seat and an unlocking assembly; the second folding seat is hinged with the first folding seat; the first locking component comprises a lock catch arranged on the first folding seat and a bayonet arranged on the second folding seat; the unlocking component comprises an unlocking spanner hinged to the first folding seat, and the unlocking spanner is connected with the lock catch. According to the folding structure provided by the invention, the folding state can be switched to the butt joint state by rotating the first folding seat or the second folding seat; in a butt joint state, the lock catch on the first folding seat can be matched and clamped with the bayonet on the second folding seat so as to lock the first folding seat and the second folding seat and avoid releasing the first folding seat and the second folding seat; when the unlocking is carried out, the unlocking spanner is only required to be rotated, and the locking between the first folding seat and the second folding seat can be released, so that the first folding seat and the second folding seat can be rotationally folded, the operation is simple and convenient, and the structure is safe and reliable.

Description

Folding structure and folding vehicle

Technical Field

The invention relates to the technical field of vehicles, in particular to a folding structure and a folding vehicle with the folding structure.

Background

With the increase of vehicles, traffic jam conditions are increasingly worsened, and more people are willing to take public traffic such as subways as travel modes. As a travel tool for short distance travel, a foldable scooter, an electric vehicle, a balance car, a bicycle and the like are convenient to carry and are favored by many people. However, the folding mechanism of the existing folding cart has a complex structure and inconvenient operation, and brings bad experience to users.

Therefore, in order to solve the above-mentioned problems, it is necessary to provide a new folding structure and folding cart.

Disclosure of Invention

The invention aims to provide a folding structure and a folding vehicle, which are simple in structure, convenient to operate, safe and reliable.

In order to achieve the above purpose, the technical scheme provided by the invention is as follows:

in a first aspect, the present invention provides a folding structure comprising a first folding seat, a second folding seat, and an unlocking assembly; the second folding seat is hinged with the first folding seat; the first locking component comprises a lock catch arranged on the first folding seat and a bayonet arranged on the second folding seat; the unlocking component comprises an unlocking spanner hinged to the first folding seat, and the unlocking spanner is connected with the lock catch.

In a folded state, the first folding seat is rotated along a first direction, so that the first folding seat and the second folding seat can be switched to a butt joint state, and the lock catch is clamped with the bayonet in a matched manner so as to lock the first folding seat and the second folding seat; under the butt joint state, rotate along the reverse direction of first direction the unblock spanner can make the hasp with the bayonet socket breaks away from to the unblock first folding seat with the second folding seat.

In one or more embodiments, the first locking assembly further includes a mounting seat and a first reset member, the mounting seat is disposed on the first folding seat, the lock catch is movably disposed on the mounting seat, and the first reset member is disposed between the lock catch and the mounting seat; under the butt joint state, the first reset piece can enable the lock catch to tend to keep clamping connection with the bayonet so as to lock the first folding seat and the second folding seat.

In one or more embodiments, the lock catch includes a first supporting portion and a locking tongue portion protruding on the first supporting portion, the mounting seat includes a second supporting portion, one end of the first resetting piece is supported on the first supporting portion, and the other end of the resetting piece is supported on the second supporting portion; in the abutting state, the first reset piece provides a reset force enabling the first abutting part to tend to move towards the bayonet, so that the lock tongue part stretches into the bayonet to be clamped with the bayonet in a matching mode.

In one or more embodiments, the first supporting portion is provided with a sliding rod portion in a protruding mode, the second supporting portion is provided with a sliding hole, the sliding rod portion is slidably arranged in the sliding hole in a penetrating mode, and the first resetting piece is a pressure spring and is sleeved on the sliding rod portion.

In one or more embodiments, the mounting seat is fixed at the butt end of the first folding seat, the butt end of the second folding seat is provided with a containing cavity, and the bayonet is arranged on the inner side wall of the containing cavity; in the abutting state, the lock catch can be accommodated in the accommodating cavity, and the lock tongue part protrudes from the first abutting part towards the bayonet.

In one or more embodiments, the latch portion has a first guide surface formed thereon, and the inner side wall of the receiving cavity has a second guide surface formed thereon that mates with the first guide surface; in the process of switching from the folding state to the abutting state, the first guide surface and the second guide surface are matched and abutted so as to overcome the reset force of the first reset piece and enable the lock tongue part to move in the direction away from the bayonet; under the butt joint state, the first guide surface and the second guide surface are separated from being matched, and the lock tongue part protrudes into the bayonet to be clamped with the bayonet under the action of the reset force.

In one or more embodiments, the unlocking assembly further comprises a connecting rod connecting the unlocking wrench and the lock catch; under the butt joint state, rotate along the opposite direction of first direction the unblock spanner can link to drive the connecting rod is kept away from the direction of bayonet socket removes, so that the hasp with the bayonet socket breaks away from.

In one or more embodiments, a cam is disposed at one end of the unlocking wrench, a first hinge portion and a second hinge portion deviating from the first hinge portion are disposed on the cam, the first hinge portion is hinged to the second folding seat, one end of the connecting rod is hinged to the second hinge portion, and the other end of the connecting rod is hinged to the lock catch.

In one or more embodiments, the folding structure further comprises a second locking assembly for locking an unlocking wrench to the first folding seat, the second locking assembly comprising a hook portion provided on one of the unlocking wrench and the first folding seat, and a catch mechanism slidably provided on the other of the unlocking wrench and the first folding seat; the unlocking wrench is rotated along a first direction, and the clamping hook part and the clamping mechanism can be matched and clamped so as to limit the unlocking wrench to rotate in the direction opposite to the first direction; sliding the catch mechanism can disengage the catch mechanism from the catch portion to release the limit on the unlocking wrench.

In one or more embodiments, the hook portion is disposed on the first folding seat, and the fastening mechanism is slidably disposed on the unlocking lever; the locking mechanism comprises a sliding button and a locking part arranged on the sliding button, a sliding groove is arranged on the unlocking wrench, the sliding button is slidably arranged on the sliding groove, and the locking part can be matched and locked with the clamping hook part; when the clamping part is matched and clamped with the clamping hook part, the sliding button slides along the sliding groove, so that the clamping part can be driven to be far away from the clamping hook part, and the clamping part is separated from the clamping hook part.

In one or more embodiments, the fastening mechanism further includes a second reset piece, one end of the second reset piece is propped against the sliding button, and the other end of the second reset piece is propped against the inner wall of the sliding groove; when the clamping part is matched and clamped with the clamping hook part, the second reset piece provides reset force enabling the clamping part to tend to be matched and clamped with the clamping hook part.

In a second aspect the invention provides a folding cart comprising a folding structure as described above.

Compared with the prior art, the folding structure provided by the invention can be switched from the folding state to the butt-joint state by rotating the first folding seat or the second folding seat; in a butt joint state, the lock catch on the first folding seat can be matched and clamped with the bayonet on the second folding seat so as to lock the first folding seat and the second folding seat and avoid releasing the first folding seat and the second folding seat; when the lock is unlocked, only the unlocking wrench is required to be rotated, and the lock catch can be separated from the bayonet under the driving of the unlocking wrench, so that the lock catch and the bayonet are separated from each other, the lock between the first folding seat and the second folding seat is released, the first folding seat and the second folding seat can be rotated and folded, the operation is simple and convenient, and the structure is safe and reliable.

Drawings

FIG. 1 is a schematic view of a folded structure in a folded state according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the folded structure of FIG. 1 in a folded state;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

FIG. 4 is an enlarged schematic view at B in FIG. 2;

FIG. 5 is a schematic view of the folded structure of FIG. 1 in a docked state;

FIG. 6 is a cross-sectional view of the folded structure of FIG. 1 in a docked state;

FIG. 7 is an enlarged schematic view at C in FIG. 6;

FIG. 8 is an enlarged schematic view at D in FIG. 6;

FIG. 9 is an exploded view of the folded structure of FIG. 5 from a perspective;

fig. 10 is an exploded view of the folded structure of fig. 5 from another perspective.

The main reference numerals illustrate:

1-first folding seat, 11-main body, 12-connecting part, 13-limiting hole, 14-first hinge arm, 2-second folding seat, 21-second hinge arm, 22-containing cavity, 23-second guide surface, 3-first locking component, 31-lock catch, 311-slide bar part, 312-first supporting part, 313-lock tongue part, 314-first guide surface, 315-first hinge slot, 32-bayonet, 33-mounting seat, 331-fixing part, 332-second supporting part, 333-slide hole, 34-first reset piece, 4-unlocking component, 41-unlocking spanner, 42-connecting rod, 421-first hinge hole, 422-second hinge hole, 43-cam, 431-first hinge part, 432-second hinge part, 433-second hinge slot; 5-second locking component, 51-pothook portion, 52-snap mechanism, 521-slide button, 522-snap portion, 53-spout, 54-second reset piece, 55-first guide portion, 56-second guide portion.

Detailed Description

The following detailed description of embodiments of the invention is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the invention is not limited to the specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated element or component without excluding other elements or components.

Referring to fig. 1 to 10, a folding structure according to an embodiment of the invention includes a first folding seat 1, a second folding seat 2, a first locking component 3 and an unlocking component 4.

Referring to fig. 1 and 2, the first folding seat 1 and the second folding seat 2 are hinged, so that the first folding seat 1 and the second folding seat 2 can rotate relatively. The first locking assembly 3 comprises a lock catch 31 arranged on the first folding seat 1 and a bayonet 32 arranged on the second folding seat 2. The unlocking assembly 4 comprises an unlocking spanner 41 hinged on the first folding seat 1, and the unlocking spanner 41 is connected with the lock catch 31.

Referring to fig. 2, in the folded state, the first folding seat 1 is rotated along the first direction (x direction in fig. 2), so that the first folding seat 1 and the second folding seat 2 can be switched to the abutting state, and the lock catch 31 and the bayonet 32 are engaged with each other to lock the first folding seat 1 and the second folding seat 2. Referring to fig. 6, in the docked state, the unlocking wrench 41 is turned in the opposite direction to the first direction, so that the lock catch 31 and the bayonet 32 can be separated to unlock the first folding seat 1 and the second folding seat 2.

In this embodiment, by rotating the first folding seat 1 or the second folding seat 2, the first folding seat 1 and the second folding seat 2 can be switched to a butt joint state, and under the butt joint state, the lock catch 31 on the first folding seat 1 can be engaged with the bayonet 32 on the second folding seat 2 to lock the first folding seat 1 and the second folding seat 2, so that the first folding seat 1 and the second folding seat 2 can be engaged in the axial direction, and both are prevented from being tripped. During unlocking, only the unlocking wrench 41 is required to be rotated, the lock catch 31 can be separated from the bayonet 32 under the drive of the unlocking wrench 41, so that the lock catch 31 and the bayonet 32 are separated from each other to release the locking between the first folding seat 1 and the second folding seat 2, and the first folding seat 1 and the second folding seat 2 can be folded in a rotating mode, and the operation is simple and convenient.

In an exemplary embodiment, referring to fig. 1 and 2, the first folding seat 1 includes a main body 11 and a connecting portion 12 formed on the main body 11 in a protruding manner, and the connecting portion 12 is configured to be connected to a riser of a folding cart. In the present embodiment, the main body 11 is substantially in a truncated cone shape, the connecting portion 12 is substantially cylindrical, and the connecting portion 12 is integrally formed on the top surface of the main body 11. The through hole penetrates through the main body part 11 and the connecting part 12 along the axial direction of the first folding seat 1, a limiting hole 13 penetrating through the connecting part 12 along the radial direction is formed in the outer peripheral surface of the connecting part 12, and the limiting hole 13 can be limited by matching with a limiting structure on the vertical pipe when the connecting part 12 is connected with the vertical pipe of the folding bicycle so as to lock the connecting part 12 and the vertical pipe.

Specifically, as shown in fig. 9 and 10, the first folding seat 1 is provided with a pair of first hinge arms 14, and the pair of first hinge arms 14 are formed by protruding from the outer peripheral wall of the main body 11 of the first folding seat 1. The second folding seat 2 is provided with a pair of second hinge arms 21 matched with the first hinge arms 14, the pair of second hinge arms 21 are formed by protruding from the butt joint end of the second folding seat 2, and the pair of second hinge arms 21 are hinged with the first hinge arms 14.

In an exemplary embodiment, referring to fig. 6, 7 and 10, the first locking assembly 3 further includes a mounting base 33 and a first reset element 34. The mounting seat 33 is arranged on the first folding seat 1, the lock catch 31 is movably arranged on the mounting seat 33, and the first resetting piece 34 is arranged between the lock catch 31 and the mounting seat 33. In the docked state, the first reset piece 34 can enable the lock catch 31 to tend to be clamped with the bayonet 32 so as to lock the first folding seat 1 and the second folding seat 2.

Specifically, referring to fig. 3, 9 and 10, the mounting base 33 includes a fixing portion 331 fixed to the abutting end of the first folding base 1, and the fixing portion 331 can be fixed to the bottom surface of the main body 11 of the first folding base 1 by a screw or a rivet. To increase the bonding strength between the fixing portion 331 and the main body portion 11, the fixing portion 331 may be formed in a flat sheet shape to increase the contact area between the fixing portion 331 and the main body portion 11, so that a plurality of screws or rivets may be provided to fix the fixing portion 331 and the main body portion 11.

Further, as shown in fig. 10, the mounting base 33 further includes a second abutting portion 332 integrally disposed on the fixing portion 331, and the second abutting portion 332 protrudes from the fixing portion 331 toward a bottom surface direction away from the main body 11. The second abutting portion 332 is provided with a sliding hole 333 penetrating the protruding portion along a direction perpendicular to the axial direction of the main body portion 11, the lock catch 31 is slidably disposed in the sliding hole 333, and the lock catch 31 can slide along the axial direction of the sliding hole 333.

Further, referring to fig. 3 and 10, the lock catch 31 includes a sliding rod portion 311 cooperating with the sliding hole 333, and the sliding rod portion 311 is slidably disposed in the sliding hole 333. The lock catch 31 further comprises a first supporting portion 312 and a locking portion 313, and the sliding rod portion 311 and the locking portion 313 are respectively protruded on two opposite surfaces of the first supporting portion 312. One end of the first resetting piece 34 abuts against the first abutting portion 312, and the other end of the first resetting piece 34 abuts against the second abutting portion 332. In the docked state, the first reset element 34 provides a reset force tending to move the first abutment 312 towards the bayonet 32, so that the latch portion 313 extends into the bayonet 32 to be engaged with the bayonet 32.

Preferably, the first restoring member 34 is a compression spring, and the compression spring is sleeved on the sliding rod portion 311. One end of the compression spring abuts against the first abutting portion 312, and the other end abuts against the second abutting portion 332. In the folded state, the first folding seat 1 is rotated along the first direction, so that the second folding seat 2 can push the lock tongue portion 313, the sliding rod portion 311 slides in the sliding hole 333, and the first abutting portion 312 approaches the second abutting portion 332, so as to compress the compression spring to accumulate elastic potential energy. After the locking tongue 313 rotates to the bayonet 32, the pushing of the locking tongue 313 can be canceled, and the locking tongue 313 can be reset under the action of the elastic force of the pressure spring, so that the locking tongue 313 stretches into the bayonet 32 to be matched and clamped with the bayonet 32, and the locking between the first folding seat 1 and the second folding seat 2 is realized.

In other embodiments, the compression spring may be replaced by other elastic members that are capable of elastic deformation after compression. The compression spring may be replaced by two opposing magnetic members, one of which may be disposed on the first abutment 312 and the other of which may be disposed on the second magnetic member.

In an exemplary embodiment, referring to fig. 2 and 9, the butt end of the second folding seat 2 is provided with a receiving cavity 22, and the bayonet 32 is disposed on an inner sidewall of the receiving cavity 22. In the docked state, the lock catch 31 can be accommodated in the accommodating cavity 22, and the lock tongue portion 313 protrudes from the first supporting portion 312 toward the bayonet 32 to lock the first folding seat 1 and the second folding seat 2.

Specifically, referring to fig. 2, 3, 6 and 7, a first guiding surface 314 is formed on the locking tongue 313, and a second guiding surface 23 matching the first guiding surface 314 is formed on the inner sidewall of the accommodating cavity 22. In the process of switching from the folded state to the abutting state, the first guide surface 314 and the second guide surface 23 are matched and abutted to push the lock tongue portion 313, so that the lock tongue portion 313 can move towards the direction away from the bayonet 32 against the restoring force of the first restoring piece 34. In the abutting state, the first guide surface 314 and the second guide surface 23 are disengaged to cancel the pushing of the locking tongue portion 313, and the locking tongue portion 313 can protrude into the bayonet 32 to be engaged with the bayonet 32 under the action of the restoring force.

In an exemplary embodiment, referring to fig. 6 and 9, the unlocking assembly 4 further includes a connecting rod 42 connecting the unlocking wrench 41 and the lock catch 31. In the abutting state, the unlocking wrench 41 is rotated in the opposite direction of the first direction, and the connecting rod 42 can be driven to move in a direction away from the bayonet 32 in a linkage manner, so that the lock catch 31 is separated from the bayonet 32.

Specifically, as shown in fig. 9 and 10, one end of the unlocking wrench 41 is provided with a cam 43, the cam 43 is provided with a first hinge portion 431 and a second hinge portion 432 offset from the first hinge portion 431, the first hinge portion 431 is hinged to the second hinge arm 21 of the second folding seat 2, one end of the connecting rod 42 is hinged to the second hinge portion 432, and the other end of the connecting rod 42 is hinged to the slide rod portion 311 of the lock catch 31. When the unlocking wrench 41 is rotated, the cam 43 is driven to rotate by taking the first hinge portion 431 as a rotation center, and since the second hinge portion 432 is eccentrically arranged relative to the first hinge portion 431, the second hinge portion 432 can be linked to drive the slide rod portion 311 to move in the process of rotating around the first hinge portion 431, so that the lock tongue portion 313 is separated from the bayonet 32, and unlocking of the first folding seat 1 and the second folding seat 2 is achieved.

Further, as shown in fig. 9 and 10, a first hinge groove 315 is formed at an end of the sliding rod portion 311 away from the locking tongue portion 313, and a second hinge groove 433 is formed at the second hinge portion 432. One end of the link 42 is provided with a first hinge hole 421 matched with the first hinge groove 315, and the other end is provided with a second hinge hole 422 matched with the second hinge groove 433. The first hinge hole 421 is hinged to the first hinge groove 315 by a rivet, and the second hinge hole 422 is hinged to the second hinge groove 433 by a rivet.

In an exemplary embodiment, referring to fig. 6, 8 and 9, the folding structure further includes a second locking assembly 5 for locking the unlocking wrench 41 to the first folding seat 1, where the second locking assembly 5 includes a hook portion 51 provided on one of the unlocking wrench 41 and the first folding seat 1, and a fastening mechanism 52 slidably provided on the other of the unlocking wrench 41 and the first folding seat 1. The unlocking wrench 41 is rotated along the first direction, so that the hook portion 51 and the fastening mechanism 52 can be engaged with each other to limit the rotation of the unlocking wrench 41 in the opposite direction of the first direction, thereby improving the locking safety of the first folding seat 1 and the second folding seat 2. The sliding latch mechanism 52 can disengage the latch mechanism 52 from the hook portion 51 to release the restriction on the unlocking wrench 41, so that the unlocking wrench 41 can be rotated in the opposite direction to the first direction to unlock the first folding seat 1 and the second folding seat 2.

Specifically, referring to fig. 2, the hook portion 51 is disposed on the first folding seat 1, and the latch mechanism 52 is slidably disposed on the unlocking wrench 41. The fastening mechanism 52 includes a slide button 521 and a fastening portion 522 provided on the slide button 521, the unlocking wrench 41 is provided with a slide groove 53, the slide button 521 is slidably provided on the slide groove 53, and the fastening portion 522 can be engaged with the hook portion 51. When the fastening portion 522 is engaged with the hook portion 51, the slide button 521 is slid along the chute 53, so as to drive the fastening portion 522 away from the hook portion 51, and separate the fastening portion 522 from the hook portion 51. Of course, in other embodiments, the positions of the hook portion 51 and the latch mechanism 52 may be reversed, that is, the hook portion 51 is disposed on the unlocking wrench 41, and the latch mechanism 52 is slidably disposed on the second folding seat 2.

Further, the fastening mechanism 52 further includes a second reset element 54, one end of the second reset element 54 abuts against the slide button 521, and the other end of the second reset element 54 abuts against the inner wall of the chute 53. When the fastening portion 522 is engaged with the fastening portion 51, the second reset member 54 provides a reset force that makes the fastening portion 522 tend to be engaged with the fastening portion 51. The second restoring member 54 is preferably a compression spring.

Further, as shown in fig. 4, the hook portion 51 is provided with a first guiding portion 55, the buckle portion 522 is provided with a second guiding portion 56 matching with the first guiding portion 55, and the first guiding portion 56 and the second guiding portion 56 have matching guiding surfaces. The unlocking wrench 41 is rotated in the first direction, so that the first guide portion 55 can push against the second guide portion 56 to slide the fastening portion 522 against the restoring force of the second restoring member 54 until the first guide portion 55 is pushed against the second guide portion 56, and the fastening portion 522 is restored under the action of the second restoring member 54, so that the fastening portion 522 is engaged with the hook portion 51.

In an embodiment of the present invention, a folding cart is further provided, where the folding cart includes the folding structure described in any of the foregoing embodiments, and the folding cart may be a scooter, a bicycle or other power-assisted cart.

The invention is further described below in connection with specific scenarios.

Referring to fig. 1 and 2, in the folded state, the first folding seat 1 is rotated along the first direction, so that the butt end of the first folding seat 1 approaches to the butt end of the second folding seat 2. After rotating to a certain position, the first guide surface 314 of the locking tongue 313 abuts against the second guide surface 23 of the accommodating cavity 22 of the second folding seat 2, and at this time, the first folding seat 1 continues to rotate along the first direction, so that under the guiding action of the first guide surface 314 and the second guide surface 23, the second folding seat 2 can push the locking tongue 313 to overcome the restoring force of the first restoring piece 34, and the locking tongue 313 moves towards a direction away from the bayonet 32.

After rotation into position, the abutting ends of the first folding seat 1 and the second folding seat 2 are engaged and the locking tongue 313 is aligned with the bayonet 32. At this time, the first guide surface 314 and the second guide surface 23 are disengaged, the second folding seat 2 is pushed against the lock tongue portion 313, and the lock tongue portion 313 can be protruded into the bayonet 32 under the action of the restoring force to be engaged with the bayonet 32, so as to lock the first folding seat 1 and the second folding seat 2 by the first locking component 3.

Then, the unlocking spanner 41 is rotated in the first direction, so that the unlocking spanner 41 approaches the first folding seat 1. After rotating to a certain position, the second guiding portion 56 on the fastening portion 522 abuts against the first guiding portion 55 on the hook portion 51, and at this time, the unlocking wrench 41 continues to rotate along the first direction, so that the first guiding portion 55 abuts against the second guiding portion 56, so as to overcome the restoring force of the second restoring member 54, and slide the fastening portion 522 until the first guiding portion 55 and the second guiding portion 56 are disengaged, so as to cancel the abutting against the second guiding portion 56. The locking portion 522 is reset under the action of the second reset element 54, so that the locking portion 522 is engaged with the hook portion 51 (as shown in fig. 5 and 6), so as to lock the unlocking wrench 41 on the first folding seat 1, limit the rotation of the unlocking wrench 41 in the opposite direction of the first direction, and avoid the disengagement of the locking tongue 313 and the bayonet 32 caused by the misoperation of the unlocking wrench 41, thereby completing the switching from the folding state of the folding structure to the abutting state.

Referring to fig. 5 and 6, in the docked state, the slide button 521 is shifted to disengage the engaging portion 522 from the hook portion 51, and the unlocking wrench 41 is rotated in the opposite direction of the first direction. During the process of rotating the unlocking wrench 41, the cam 43 can rotate, and the cam 43 can drive the slide rod portion 311 through the linkage of the connecting rod 42, so that the slide rod portion 311 moves towards a direction away from the bayonet 32, and the restoring force of the first restoring piece 34 can be overcome, so that the locking tongue portion 313 is disengaged from the bayonet 32, and the first folding seat 1 and the second folding seat 2 are unlocked. Then, the seat is folded in a direction opposite to the first direction, so that the folding structure can be switched to a folded state.

The foregoing descriptions of specific exemplary embodiments of the present invention are presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application to thereby enable one skilled in the art to make and utilize the invention in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (12)

1. A folding structure, characterized by comprising:

a first folding seat;

the second folding seat is hinged with the first folding seat;

the first locking assembly comprises a lock catch arranged on the first folding seat and a bayonet arranged on the second folding seat;

the unlocking assembly comprises an unlocking spanner hinged to the first folding seat, and the unlocking spanner is connected with the lock catch;

in a folded state, the first folding seat is rotated along a first direction, so that the first folding seat and the second folding seat can be switched to a butt joint state, and the lock catch is clamped with the bayonet in a matched manner so as to lock the first folding seat and the second folding seat;

under the butt joint state, rotate along the reverse direction of first direction the unblock spanner can make the hasp with the bayonet socket breaks away from to the unblock first folding seat with the second folding seat.

2. The folding structure of claim 1, wherein the first locking assembly further comprises a mounting seat and a first reset member, the mounting seat is arranged on the first folding seat, the lock catch is movably arranged on the mounting seat, and the first reset member is arranged between the lock catch and the mounting seat;

under the butt joint state, the first reset piece can enable the lock catch to tend to keep clamping connection with the bayonet so as to lock the first folding seat and the second folding seat.

3. The folding structure of claim 2, wherein the lock catch comprises a first supporting portion and a locking tongue portion protruding from the first supporting portion, the mounting seat comprises a second supporting portion, one end of the first resetting piece is supported on the first supporting portion, and the other end of the resetting piece is supported on the second supporting portion;

in the abutting state, the first reset piece provides a reset force enabling the first abutting part to tend to move towards the bayonet, so that the lock tongue part stretches into the bayonet to be clamped with the bayonet in a matching mode.

4. A folding structure according to claim 3, wherein the first supporting portion is provided with a sliding rod portion in a protruding manner, the second supporting portion is provided with a sliding hole, the sliding rod portion is slidably disposed in the sliding hole in a penetrating manner, and the first restoring member is a compression spring and is sleeved on the sliding rod portion.

5. The folding structure of claim 4, wherein the mounting base is fixed at a butt end of the first folding base, a receiving cavity is formed at the butt end of the second folding base, and the bayonet is formed on an inner side wall of the receiving cavity;

in the abutting state, the lock catch can be accommodated in the accommodating cavity, and the lock tongue part protrudes from the first abutting part towards the bayonet.

6. The folding structure of claim 5, wherein the latch portion has a first guide surface formed thereon, and wherein the inner side wall of the receiving cavity has a second guide surface formed thereon that mates with the first guide surface;

in the process of switching from the folding state to the abutting state, the first guide surface and the second guide surface are matched and abutted so as to overcome the reset force of the first reset piece and enable the lock tongue part to move in the direction away from the bayonet;

under the butt joint state, the first guide surface and the second guide surface are separated from being matched, and the lock tongue part protrudes into the bayonet to be clamped with the bayonet under the action of the reset force.

7. The folding structure of claim 1, wherein the unlocking assembly further comprises a connecting rod connecting the unlocking wrench and the lock catch;

under the butt joint state, rotate along the opposite direction of first direction the unblock spanner can link to drive the connecting rod is kept away from the direction of bayonet socket removes, so that the hasp with the bayonet socket breaks away from.

8. The folding structure of claim 7, wherein one end of the unlocking wrench is provided with a cam, a first hinge portion and a second hinge portion deviating from the first hinge portion are provided on the cam, the first hinge portion is hinged with the second folding seat, one end of the connecting rod is hinged with the second hinge portion, and the other end of the connecting rod is hinged with the lock catch.

9. The folding structure according to any one of claims 1 to 8, further comprising a second locking assembly for locking an unlocking wrench to the first folding seat, the second locking assembly comprising a hook portion provided on one of the unlocking wrench and the first folding seat, and a catch mechanism slidably provided on the other of the unlocking wrench and the first folding seat;

the unlocking wrench is rotated along a first direction, and the clamping hook part and the clamping mechanism can be matched and clamped so as to limit the unlocking wrench to rotate in the direction opposite to the first direction;

sliding the catch mechanism can disengage the catch mechanism from the catch portion to release the limit on the unlocking wrench.

10. The folding structure of claim 9, wherein the hook portion is disposed on the first folding seat, and the latch mechanism is slidably disposed on the unlocking lever;

the locking mechanism comprises a sliding button and a locking part arranged on the sliding button, a sliding groove is arranged on the unlocking wrench, the sliding button is slidably arranged on the sliding groove, and the locking part can be matched and locked with the clamping hook part;

when the clamping part is matched and clamped with the clamping hook part, the sliding button slides along the sliding groove, so that the clamping part can be driven to be far away from the clamping hook part, and the clamping part is separated from the clamping hook part.

11. The folding mechanism of claim 10, wherein the snap mechanism further comprises a second reset member, one end of the second reset member is abutted against the slide button, and the other end of the second reset member is abutted against the inner wall of the chute;

when the clamping part is matched and clamped with the clamping hook part, the second reset piece provides reset force enabling the clamping part to tend to be matched and clamped with the clamping hook part.

12. A folding cart comprising a folding structure according to any one of claims 1 to 11.