CN107458447A - A kind of bidirectional folding doll carriage vehicle frame - Google Patents

Abstract

The invention discloses a two-way foldable baby stroller frame. There is a sliding connector under the lower push rod, the rear wheel bracket connector is sleeved in the upper part of the rear wheel bracket assembly, and the upper end of the rear wheel bracket connector is connected with a rotatable push rod joint. , there is a sliding connector at the upper end of the push rod joint, and the lower ends of the rotatable folding connecting pieces on both sides are riveted to the middle and lower part of the rear wheel bracket assembly, and the outer sides of the middle and upper parts are connected with sliding connectors, and the inner sides of the middle and upper parts are connected with L-shaped connecting pieces. The upper end is connected to the seat cushion bar, both sides of the upper rear stay are longitudinally connected to the outer end of the upper L-shaped connecting piece, and the two ends of the lower rear stay are longitudinally connected to the rear wheel bracket connecting pieces on both sides through the lower L-shaped connecting piece. The upper ends of the bottom struts extend into the U-shaped connectors and connect to the inner side of the upper L-shaped connectors, and the lower ends of the lower bottom struts extend into the U-shaped connectors and connect to the middle of the front wheel bracket assembly. The middle of the struts are pinned and connected, and the left and right overlapping parts of the upper and lower bottom struts are all pinned and connected; the bidirectional folding of the whole vehicle is small in size and easy to carry.

Description

A two-way foldable stroller frame

technical field

The invention relates to the technical field of baby strollers, in particular to a two-way foldable baby stroller frame.

Background technique

At present, baby strollers are already a necessary tool for infants and young children to travel. In addition to pursuing the basic requirements of stability and safety of baby strollers, users pay more and more attention to the characteristics of small size and foldable baby strollers. However, the products on the market today generally cannot be folded as a whole at one time, and the products on the market generally cannot be folded in two directions as a whole, and the operation of folding or unfolding the frame is not only cumbersome, but also caused by interference due to too many parts, resulting in folding and unfolding It cannot be carried out smoothly, and the space occupied after folding is still relatively large, which is not conducive to carrying, and the cost is relatively high.

Therefore, we need a two-way folding type that realizes the force support of the whole vehicle when the frame is unfolded and the linkage of the whole vehicle during the folding process of the vehicle frame, avoids mutual interference between the frame components, and has a small folding volume and is easy to carry. Stroller frame.

Contents of the invention

The technical problem mainly solved by the present invention is to provide a two-way foldable baby stroller frame, which can fold the entire vehicle in two directions, reduce the folded volume of the entire vehicle, and is easy to carry.

In order to solve the above-mentioned technical problems, a technical solution adopted by the present invention is to provide a two-way foldable baby stroller frame, which includes left and right symmetrical front wheel support components, side handle bars, rear wheel support components, and U-shaped push handle bars. , lower push rod, push rod connecting piece, foldable and rotatable folding connecting piece, upper L-shaped connecting piece, lower L-shaped connecting piece, seat cushion bar, seat cushion connecting rod, and rear strut assembly, bottom strut assembly and U-shaped connectors, the upper ends of the front wheel bracket assemblies on both sides are movably connected with the lower ends of the side handrail rods, the front ends of the rear wheel bracket assemblies are connected to the connection points of the front wheel bracket assemblies and the side handrail rods, and the push handle The lower ends of both sides of the rod and the upper end of the lower push rod are connected by a push rod connector, the lower end of the lower push rod is provided with a sliding connector, the upper part of the rear wheel bracket assembly is sleeved with a rear wheel bracket connector, and the rear wheel bracket The upper end of the connector is fixedly connected with a rotatable push rod joint. The upper end of the push rod joint is provided with a sliding connector. The outer sides of the upper part of the sheet are connected to the sliding connectors with rivets, the inner sides of the upper middle part of the folded connecting sheets on both sides are connected with the upper L-shaped connecting sheet, the upper end of the folded connecting sheet is connected with the seat cushion bar, and the middle part of the seat cushion bar The seat cushion link is connected to the rear wheel bracket assembly, and the middle part of the seat cushion bar and the upper end of the seat cushion link are connected by rivets. The rear brace assembly includes an upper rear brace and a lower rear brace, and the upper rear brace Both sides are longitudinally connected to the outer ends of the upper L-shaped connecting piece and are located between the sliding connecting pieces. The strut assembly is the upper bottom strut and the lower bottom strut. The upper end of the upper bottom strut extends into the U-shaped connector and connects to the inner side of the upper L-shaped connecting piece, and the lower end of the lower bottom strut extends into the U-shaped connection. The inner part is connected to the middle part of the front wheel bracket assembly, the upper bottom strut and the lower bottom strut are pinned in the middle of the two bottom struts, and the left and right overlapping parts of the upper bottom strut and the lower bottom strut are also pinned. .

Further, it also includes a U-shaped tent assembly, a pedal belt horizontally connected between the front wheel bracket assemblies, a handle assembly arranged in the middle of the push handle bar, and a bilaterally symmetrical front wheel assembly arranged at the lower end of the front wheel bracket assembly , the backrest adjustment seat, the backrest assembly, the backrest adjustment seat connecting piece arranged under the backrest adjustment seat, the rear wheel assembly arranged at the lower end of the rear wheel bracket assembly, and the upper ends of the side armrest rods are vertically connected to both sides of the roof assembly , the two sides of the tent head assembly are also connected to the push rod connecting piece by rivets, the lower end of the connecting piece of the backrest adjustment seat is connected to the seat cushion connecting rod, and the upper end of the connecting piece of the backrest adjusting seat is connected to the backrest adjusting piece by a rivet. Below the seat, the backrest adjustment seat is slidably connected to the lower end of the backrest assembly, and the upper end of the seat cushion rod passes through the backrest adjustment seat;

Further, both the upper rear strut and the lower rear strut are pin-connected in the middle of the two struts, and the left and right overlaps of the upper rear strut and the lower rear strut are also pin-connected;

Further, the push rod joint is a structure that rotates relative to the rear wheel bracket connection, and the sliding connection is a structure that can slide along the lower push rod;

Further, the connection points of the front wheel bracket assemblies on both sides, the side handrail bars and the rear wheel bracket assemblies are connected by rivets to form a rotatable structure, and the front wheel bracket assemblies on both sides, the side handrail bars and the rear wheels The bracket components all form an oblique "T" structure;

Further, the push handle rod, the roof assembly, the side handle rods on both sides, and the lower push rod all form a "K"-shaped structure.

The beneficial effects of the present invention are: the structure of the present invention is stable and reliable, and the left and right folding and up and down folding of the whole vehicle can be realized by folding the connecting piece, the rear strut assembly and the bottom strut assembly, and the overall two-way folding makes the folded volume smaller; The two sets of structures, the armrest bar, the rear wheel bracket assembly, the front wheel bracket assembly, and the sliding connector, the push rod joint and the rear wheel bracket connector, can be folded so that the whole vehicle can be linked together for easy folding, and when unfolded, it can reliably support the entire vehicle under stress. The invention realizes the force support of the whole vehicle when the vehicle frame is unfolded and the linkage of the whole vehicle during the folding process of the vehicle frame. While ensuring the realization of the original functions of the vehicle frame, the folding volume of the whole vehicle is reduced, so that the folding vehicle frame can be assembled and The disassembly is more convenient and simple, and the cost is reduced, the mutual interference between the frame parts is avoided, and the whole vehicle is convenient to carry.

Description of drawings

Fig. 1 is the schematic diagram of the three-dimensional structure of the two-way foldable stroller frame of the present invention;

Fig. 2 is a rear view structural schematic diagram of the two-way foldable stroller frame;

Fig. 3 is a partial structural schematic diagram of Fig. 1 shown;

Fig. 4 is a schematic diagram of the folded structure of the two-way foldable stroller frame;

The marks of each part in the accompanying drawings are as follows: 1. Front wheel assembly 2, foot belt 3, front wheel bracket assembly 4, U-shaped connector 5, lower bottom support rod 6, seat cushion rod 7, seat cushion connecting rod 8, Side armrest rod 9, tent head assembly 10, knob assembly 11, push handle rod 12, push rod connector 13, backrest assembly 14, lower push rod 15, backrest adjustment seat 16, sliding connector 17, backrest adjustment seat connecting piece 18. Rear wheel bracket connector 19, rear wheel bracket assembly 20, upper L-shaped connecting piece 21, folding connecting piece 22, upper rear support bar 23, rear wheel assembly 24, lower rear support bar 25, lower L-shaped connecting piece 26 , upper bottom strut 27, push rod joint.

detailed description

The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

Please refer to Fig. 1 to Fig. 4, the embodiment of the present invention comprises: left and right symmetrical front wheel bracket assembly 3, side armrest rod 8, rear wheel bracket assembly 19, U-shaped push handle rod 11, lower push rod 14, push rod connector 12. Foldable and rotatable folding connecting piece 21, upper L-shaped connecting piece 20, lower L-shaped connecting piece 25, seat cushion rod 6, seat cushion connecting rod 7, and rear strut assembly, bottom strut assembly and U-shaped connection Part 4, the upper ends of the front wheel bracket assemblies 3 on both sides are movably connected with the lower ends of the side handrail rods 8, and the front ends of the rear wheel bracket assemblies 19 are connected to the connecting points of the front wheel bracket assemblies 3 and the side handrail rods 8 , the lower ends of both sides of the push rod 11 and the upper end of the lower push rod 14 are connected by a push rod connector 12, the lower end of the lower push rod 14 is provided with a sliding connector 16, and the upper part of the rear wheel bracket assembly 19 is sleeved with The rear wheel bracket connector 18, the upper end of the rear wheel bracket connector 18 is fixedly connected with a rotatable push rod joint 27, the upper end of the push rod joint 27 is provided with a sliding connector 16, and the lower ends of the folded connecting pieces 21 on both sides are Riveted to the middle and lower part of the rear wheel bracket assembly 19, the outer sides of the upper and middle parts of the folded connecting pieces 21 on both sides are all connected to the sliding connector 16 with rivets, and the inner sides of the upper and lower parts of the folded connecting pieces 21 on both sides are all connected with the upper L-shaped connecting pieces. 20 connection, the upper end of the folded connecting piece 21 is connected with the seat cushion bar 6, the middle part of the seat cushion bar 6 is connected to the rear wheel bracket assembly 19 through the seat cushion link 7, the middle part of the seat cushion bar 6 and the seat cushion link 7 The upper ends are connected by rivets, and the rear strut assembly includes an upper rear strut 22 and a lower rear strut 24. Both sides of the upper rear strut 22 are longitudinally connected to the outer end of the upper L-shaped connecting piece 20 and are positioned at the sliding connector. 16, the two ends of the lower rear strut 24 are vertically connected to the lower ends of the rear wheel bracket connectors 18 on both sides through the lower L-shaped connecting piece 25, and the bottom strut assembly is the upper bottom strut 26 and the lower bottom strut 5 , the upper ends of the upper bottom struts 26 all extend into the U-shaped connector 4 and are connected to the inner side of the upper L-shaped connector 20, and the lower ends of the lower bottom struts 5 all extend into the U-shaped connector 4 and are connected to the front wheel bracket assembly The middle part of 3, upper end strut 26 and lower end strut 5 are all connected by pin connection in the middle of two end struts, and the left and right overlaps of upper end strut 26 and lower end strut 5 are also all pinned and connected.

Further, it also includes a U-shaped tent assembly 9, a pedal belt 2 horizontally connected between the front wheel bracket assemblies 3, a handle assembly 10 arranged in the middle of the push handle bar 11, and symmetrical front wheel bracket assemblies. 3 The front wheel assembly 1 at the lower end, the backrest adjustment seat 15, the backrest assembly 13, the backrest adjustment seat connecting piece 17 arranged under the backrest adjustment seat 15, the rear wheel assembly 23 arranged at the lower end of the rear wheel bracket assembly 19, the side armrest The upper ends of the rods 8 are vertically connected to both sides of the tent head assembly 9, and the both sides of the tent head assembly 9 are also connected to the push rod connector 12 by rivets, and the lower end of the backrest adjustment seat connecting piece 17 is connected to the seat cushion connector. On the rod 7, the upper end of the backrest adjustment seat connecting piece 17 is connected to the below of the backrest adjustment seat 15 by a rivet, and the backrest adjustment seat 15 is slidably connected to the lower end of the backrest assembly 13, and the upper end of the seat cushion rod 6 runs through the Backrest adjustment seat 15; through the backrest adjustment seat 15 and the backrest adjustment seat connecting piece 17, the three-speed adjustment of the backrest assembly 13 can be realized, making the whole vehicle more comfortable to adjust;

The upper rear struts 22 and the lower rear struts 24 are pin-connected in the middle of the two struts, and the left and right overlaps of the upper rear struts 22 and the lower rear struts 24 are also pin-connected;

Further, the push rod joint 27 is a structure that rotates relative to the rear wheel bracket connector 18, and the sliding connector 16 is a structure that can slide along the lower push rod 14;

Further, the connection points of the front wheel bracket assembly 3 on both sides, the side armrest rod 8 and the rear wheel bracket assembly 19 are connected by rivets to form a rotatable structure, and the front wheel bracket assembly 3 on the two sides, the side armrest Bar 8 and rear wheel bracket assembly 19 all form oblique "T" structure;

Further, the push handle rod 11, the roof assembly 9, the side handle rods 8 on both sides, and the lower push rod 14 all form a "K"-shaped structure.

Specific examples:

When folding, the push rod connector 12 is folded and rotated through the handle assembly 10, so that the push handle rod 11 drives the tent head assembly 9 to rotate and fold relative to the side handle bar 8, while the side handle bar 8, the rear wheel bracket assembly 19 and the front The wheel bracket assembly 3 rotates and folds at the same time, the rear wheel bracket assembly 19 and the side handle bar 8 rotate, fold and gather in the direction relative to the front wheel bracket assembly 3, and the push rod joint 27 on the rear wheel bracket connector 18 rotates, so that the lower The push rod 14 rotates in the same direction with the push rod joint 27, and the sliding connector 16 slides along the lower push rod 14 in a direction close to the push rod connector 12, and the lower push rod 14 is folded and folded to the front wheel bracket assembly 3, and therewith At the same time, the folding link 21 rotates up and down to drive the rear strut assembly and the bottom strut assembly to also rotate and fold, so as to realize the up and down folding and left and right folding of the entire vehicle frame;

When unfolding, the rear strut assembly and the bottom strut assembly are unfolded up and down, left and right, and the folding connecting piece 21 rotates up and down, and the side armrest bar 8, the rear wheel bracket assembly 19 and the front wheel bracket assembly 3 are unfolded until the side armrest bar 8 and the front wheel bracket Component 3 is connected and locked, and the push rod joint 27 on the rear wheel bracket connector 18 rotates at the same time, so that the lower push rod 14 rotates in the same direction with the push rod joint 27, and at the same time, the sliding connector 16 moves away from the push rod along the lower push rod 14 The connecting piece 12 slides in the direction, and slides to the top of the push rod joint 27, until the rear wheel bracket connecting piece 18 and the sliding connecting piece 16 are locked, and the pushing rod connecting piece 12 is connected and locked to the push handle bar 11 and the lower push rod 14, and the entire vehicle The shelf unfolds and locks.

The structure of the present invention is stable and reliable, and the left and right folding and up and down folding of the whole vehicle are realized through the folding connecting piece 21, the rear strut assembly and the bottom strut assembly, and the overall two-way folding makes the folded volume smaller; The bracket assembly 19, the front wheel bracket assembly 3, and the sliding connector 16, the push rod joint 27, and the rear wheel bracket connector 18 are two groups of structures, which can be folded together to facilitate the entire vehicle to be folded, and can reliably support the entire vehicle when unfolded. , the present invention realizes the force support of the whole vehicle when the frame is unfolded and the linkage of the whole vehicle during the folding process of the vehicle frame, while ensuring the realization of the original functions of the vehicle frame, the folding volume of the whole vehicle is reduced, and the assembly of the folded vehicle frame It is more convenient and simple to disassemble, and reduces the cost, avoids the mutual interference between the frame parts, and is convenient for the whole vehicle to carry.

The above is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technologies fields, all of which are equally included in the scope of patent protection of the present invention.

Claims (6)

1. a kind of bidirectional folding doll carriage vehicle frame, including symmetrical front-wheel support component, side handrail bar, rear wheel support Component, U-shaped pulling handle rod, lower push-rod, push rod connector, the folding connection sheet of foldable rotation, upper L-type connection sheet, the connection of lower L-type Piece, seat pillar, seat cushion link, and back brace bar assembly, bottom bracing bar assembly and U-shaped connector, the both sides front-wheel support component Upper end be flexibly connected with the lower end head and the tail of side handrail bar, the front end of rear wheel support component be all connected to front-wheel support component with On the tie point of side handrail bar, it is characterised in that the both sides lower end of pulling handle rod and the upper end of lower push-rod pass through push rod connector Connection, the lower end of the lower push-rod are provided with sliding connector, and rear wheel support component middle and upper part is socketed with rear wheel support connector, The upper end of rear wheel support connector is fixed with rotatable push rod joint, and the push rod upper end of joint, which is provided with, to be slidably connected Part, the both sides fold the middle and lower part that connection sheet lower end is riveted on rear wheel support component, the folding connection sheet middle and upper part of both sides Outside is connected with rivet interlacement to sliding connector, the both sides fold on the inside of connection sheet middle and upper part with upper L-type connection sheet Connecing, the upper end for folding connection sheet is connected with seat pillar, and rear wheel support component is connected to by seat cushion link in the middle part of the seat pillar, The middle part of seat pillar and the upper end of seat cushion link include upper rear pole and lower back brace by rivet interlacement, the back brace bar assembly Bar, the both sides of upper rear pole are longitudinally connected to the outer end of upper L-type connection sheet and between sliding connector, lower rear pole By the lower end of the longitudinally connected rear wheel support connector to both sides of lower L-type connection sheet, bottom bracing bar assembly is upper bottom supporting rod at both ends With lower bottom supporting rod, the inner side for being connected to L-type connection sheet is stretched into U-shaped connector in the upper end of upper bottom supporting rod, lower bottom supporting rod The middle part for being connected to front-wheel support component is stretched into U-shaped connector in lower end, and upper bottom supporting rod supports with lower bottom supporting rod by two foundation Bar intermediate pin is connect in succession, and upper bottom supporting rod is connected with the overlapping place in the left and right of lower bottom supporting rod also equal pin joint.

2. bidirectional folding doll carriage vehicle frame according to claim 1, it is characterised in that：Also include U-shaped paulin head assembly, Foot-operated band of the horizontal connection between front-wheel support component, the handle knob component being arranged among pulling handle rod and symmetrical set It is placed in front component, backrest adjustment seat, backrest module, the backrest being arranged at below backrest adjustment seat of front-wheel support component lower end Adjustment seat connection sheet, the wheel assembly for being arranged at rear wheel support component lower end, the upper end of the side handrail bar are connected perpendicularly to The both sides of paulin head assembly, the both sides of paulin head assembly are also by the way that on rivet interlacement to push rod connector, the backrest adjustment seat connects The lower end of piece is connected in seat cushion link, and the upper end of the backrest adjustment seat connection sheet passes through rivet interlacement to backrest adjustment seat Lower section, the backrest adjustment seat are slidably connected to the lower end of backrest module, and the upper end of the seat pillar is through backrest adjustment seat.

3. bidirectional folding doll carriage vehicle frame according to claim 1, it is characterised in that：The upper rear pole with it is lower after Strut is connect in succession by two strut intermediate pins, and upper rear pole is connected with the overlapping place in the left and right of lower rear pole also equal pin joint.

4. bidirectional folding doll carriage vehicle frame according to claim 1, it is characterised in that：The push rod joint is relative In the structure that rear wheel support connector rotates, the sliding connector is the structure that can be slided along lower push-rod.

5. bidirectional folding doll carriage vehicle frame according to claim 1, it is characterised in that：The front-wheel support of the both sides Turntable is formed with rivet interlacement between the tie point of component, side handrail bar and rear wheel support component, before the both sides Wheel support component, side handrail bar and rear wheel support component are respectively formed oblique T-shape structure.

6. bidirectional folding doll carriage vehicle frame according to claim 1, it is characterised in that：The pulling handle rod, paulin head group Part and side handrail bar, the lower push-rod of both sides are respectively formed " K " type structure.