CN-122029094-A - Foldable carrier

CN122029094ACN 122029094 ACN122029094 ACN 122029094ACN-122029094-A

Abstract

A foldable carrier (10) comprises an unfolding state and a folding state, and comprises two joints (100), two side frames, a bottom support frame (220) and a top frame (230), wherein each joint (100) comprises a first joint seat (110), a second joint seat (120) and a limiting plate (130) which are coaxially pivoted, a limiting mechanism is arranged between each joint seat and each limiting plate (130), each limiting mechanism comprises circular arc grooves (131 a and 131 b) taking a pivoting shaft as a center of a circle and limiting pieces (111 and 121) which are in sliding fit with the circular arc grooves, two side frames are oppositely arranged, each side frame comprises inclined supporting rods (210 a and 210 b) connected with the joint seat, the bottom support frame (220) comprises a front support frame (222) and a rear support frame (223) which can rotate relatively, the front support frame (222) and the rear support frame (223) are hinged with one inclined supporting rod (210 a and 210 b) respectively, the top frame (230) comprises two U-shaped frames (231 and 232), two ends of each U-shaped frame are hinged with the limiting plates (130) to be in linkage with the corresponding inclined supporting rods (210 a and 210 b) respectively, and the two end portions (131 a and 130) are clamped at the end portions of the corresponding to the circular arc grooves (131 and the limiting pieces) in a clamping mode. The carrier (10) is simpler in construction and does not require an additional unlocking operation at least during the folding operation.

Inventors

XIA TIEJUN
Ma Congquan
ZHAO GUOSONG

Assignees

晨辉婴宝儿童用品有限公司

Dates

Publication Date: 20260512
Application Date: 20240709
Priority Date: 20231206

Claims (13)

A collapsible carrier having an unfolded state and a folded state, comprising: Each joint comprises a first joint seat, a second joint seat and a limiting plate which are coaxially pivoted, a first limiting mechanism is arranged between the first joint seat and the limiting plate, a second limiting mechanism is arranged between the second joint seat and the limiting plate, the first limiting mechanism comprises a first circular arc groove taking a pivoting shaft as a circle center and a first limiting piece in sliding fit with the first circular arc groove, and the second limiting mechanism comprises a second circular arc groove taking the pivoting shaft as the circle center and a second limiting piece in sliding fit with the second circular arc groove; Two oppositely arranged side frames, each side frame comprising a first diagonal brace connecting the first joint seat and a second diagonal brace connecting the second joint seat; The bottom support comprises a front support and a rear support which can rotate relatively, the front support is hinged with the first inclined support rod, and the rear support is hinged with the second inclined support rod; The top frame comprises a first U-shaped frame and a second U-shaped frame, wherein two ends of the first U-shaped frame are hinged with the limiting plate and are linked with the first diagonal brace, and two ends of the second U-shaped frame are hinged with the limiting plate and are linked with the second diagonal brace; in the unfolding state, the first limiting piece and the second limiting piece slide to one end part of the first circular arc groove and one end part of the second circular arc groove respectively so as to clamp and fix the limiting plate.
The foldable carrier of claim 1, wherein the first circular arc slot and the second circular arc slot are formed in the limiting plate, the first limiting member is disposed in the first joint seat, and the second limiting member is disposed in the second joint seat.
The foldable carrier of claim 1, wherein the side frame comprises a first linkage bar and a second linkage bar, wherein two ends of the first linkage bar are respectively hinged to the first U-shaped frame and the first diagonal brace, and two ends of the second linkage bar are respectively hinged to the second U-shaped frame and the second diagonal brace.
The foldable carrier of claim 1, wherein in the unfolded state, the first U-shaped frame and the second U-shaped frame are arranged in a coplanar manner, the front frame and the rear frame are arranged in a coplanar manner, the first diagonal brace and the second diagonal brace are in an inverted V shape, the amplitude of the V-shaped included angle is maximum, and the limiting parts on the joint seats respectively move to the limiting positions of the ends of the circular arc grooves along the circular arc grooves.
The foldable carrier of claim 1, wherein in the folded state, the stoppers on each joint seat move along the circular arc groove to the other end of the circular arc groove, respectively.
The foldable carrier of claim 1, wherein the front and rear frames include support bars arranged in a width direction.
The foldable carrier of claim 1, further comprising: the pushing handle rod comprises an upper rod and a lower rod which are in running fit, the bottom of the lower rod is hinged to the bottom of one of the inclined supporting rods, when the pushing handle rod is folded in half, the top of the upper rod is folded downwards and is close to the bottom of the lower rod, and when the pushing handle rod is folded, the pushing handle rod is close to the limiting plate.
The foldable carrier of claim 7, wherein the lower rod is slidably provided with a sliding sleeve, the foldable carrier further comprising a link pivotally connected between the sliding sleeve and one of the diagonal braces, and a locking mechanism provided between the sliding sleeve and the lower rod, the locking mechanism having a locking state that restricts sliding of the sliding sleeve to keep the push rod stationary.
The foldable carrier of claim 1, comprising an adapter seat disposed on the limiting plate, the adapter seat being configured to detachably connect an auxiliary device.
The foldable carrier of claim 1, comprising a liner disposed on the top frame.
A collapsible carrier having an unfolded state and a folded state, comprising: Each joint comprises a first joint seat, a second joint seat and a limiting plate which are coaxially pivoted, a first limiting mechanism is arranged between the first joint seat and the limiting plate, a second limiting mechanism is arranged between the second joint seat and the limiting plate, the first limiting mechanism comprises a first circular arc groove taking a pivoting shaft as a circle center and a first limiting piece in sliding fit with the first circular arc groove, and the second limiting mechanism comprises a second circular arc groove taking the pivoting shaft as the circle center and a second limiting piece in sliding fit with the second circular arc groove; Two oppositely arranged side frames, each side frame comprising a first diagonal brace connecting the first joint seat and a second diagonal brace connecting the second joint seat; The top frame comprises a first U-shaped frame and a second U-shaped frame which can rotate relatively, and the first U-shaped frame and the second U-shaped frame are respectively hinged with the first inclined stay bar and the second inclined stay bar; the bottom support comprises a front support and a rear support, the front support is hinged with the limiting plate and is linked with the first inclined support rod, and the rear support is hinged with the limiting plate and is linked with the second inclined support rod; in the unfolding state, the first limiting piece and the second limiting piece slide to one end part of the first circular arc groove and one end part of the second circular arc groove respectively so as to clamp and fix the limiting plate.
The foldable carrier of claim 11, wherein the first circular arc slot and the second circular arc slot are formed in the limiting plate, the first limiting member is disposed in the first joint seat, and the second limiting member is disposed in the second joint seat.
The collapsible carrier of claim 11 wherein said side frame comprises a first link and a second link, said first link being hinged at both ends to said front frame and to said first diagonal strut, respectively, and said second link being hinged at both ends to said rear frame and to said second diagonal strut, respectively.

Description

Foldable carrier Technical Field The application relates to the technical field of folding carriers, in particular to a foldable carrier. Background Some existing folding carriers comprise a frame and a cloth cover arranged on the frame, wherein the frame comprises a bottom frame and a surrounding frame supported on the bottom frame, and the bottom frame and the surrounding frame are folded when needed. Technical problem However, the existing frame has a large volume after being folded, which is not beneficial to package, transportation and daily storage. In addition, the existing folding carrier is generally provided with a locking mechanism on the surrounding frame to keep the carrier in an unfolding state. Technical solution The application provides a foldable carrier which is simple in structure and convenient to operate. The application provides a foldable carrier, which has an unfolding state and a folding state, and comprises: Each joint comprises a first joint seat, a second joint seat and a limiting plate which are coaxially pivoted, a first limiting mechanism is arranged between the first joint seat and the limiting plate, a second limiting mechanism is arranged between the second joint seat and the limiting plate, the first limiting mechanism comprises a first circular arc groove taking a pivoting shaft as a circle center and a first limiting piece in sliding fit with the first circular arc groove, and the second limiting mechanism comprises a second circular arc groove taking the pivoting shaft as the circle center and a second limiting piece in sliding fit with the second circular arc groove; Two oppositely arranged side frames, each side frame comprising a first diagonal brace connecting the first joint seat and a second diagonal brace connecting the second joint seat; The bottom support comprises a front support and a rear support which can rotate relatively, the front support is hinged with the first inclined support rod, and the rear support is hinged with the second inclined support rod; The top frame comprises a first U-shaped frame and a second U-shaped frame, wherein two ends of the first U-shaped frame are hinged with the limiting plate and are linked with the first diagonal brace, and two ends of the second U-shaped frame are hinged with the limiting plate and are linked with the second diagonal brace; in the unfolding state, the first limiting piece and the second limiting piece slide to one end part of the first circular arc groove and one end part of the second circular arc groove respectively so as to clamp and fix the limiting plate. The following provides several alternatives, but not as additional limitations to the above-described overall scheme, and only further additions or preferences, each of which may be individually combined for the above-described overall scheme, or may be combined among multiple alternatives, without technical or logical contradictions. Optionally, the first circular arc groove and the second circular arc groove are formed in the limiting plate, the first limiting piece is arranged on the first joint seat, and the second limiting piece is arranged on the second joint seat. Optionally, the side frame includes first gangbar and second gangbar, first gangbar both ends respectively articulated in first U shaped frame and first diagonal brace, second gangbar both ends respectively articulated in second U shaped frame and second diagonal brace. Optionally, under the expansion state, first U type frame with the coplanarity of second U type frame is arranged, preceding frame and back frame coplanarity set up, first diagonal brace and second diagonal brace are the reverse V-arrangement, and the range of V-arrangement contained angle is the biggest, and the locating part on each joint seat moves to the extreme position of circular arc groove tip along the circular arc groove at place respectively. Optionally, in the folded state, the limiting parts on the joint seats respectively move to the other ends of the circular arc grooves along the circular arc grooves. Optionally, the front frame and the rear frame include support bars arranged in a width direction. Optionally, the method further comprises: the pushing handle rod comprises an upper rod and a lower rod which are in running fit, the bottom of the lower rod is hinged to the bottom of one of the inclined supporting rods, when the pushing handle rod is folded in half, the top of the upper rod is folded downwards and is close to the bottom of the lower rod, and when the pushing handle rod is folded, the pushing handle rod is close to the limiting plate. Optionally, a sliding sleeve is slidably disposed on the lower rod, and the foldable carrier further includes a connecting rod pivotally connected between the sliding sleeve and one of the diagonal braces, and a locking mechanism disposed between the sliding sleeve and the lower rod, where the locking mechanism has a locking state that limits the sliding sleev