CN212172331U

CN212172331U - Linkage folding baby carriage structure

Info

Publication number: CN212172331U
Application number: CN202020927053.9U
Authority: CN
Inventors: 李伟琼
Original assignee: Kunshan Weikai Children Products Co Ltd
Current assignee: Kunshan Weikai Children Products Co Ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2020-12-18
Anticipated expiration: 2030-05-27

Abstract

The utility model discloses a linkage folding baby carriage structure, which comprises a push rod connecting part, a front bracket connecting part and a rear bracket connecting part which are connected in a rotating way, wherein the push rod connecting part is provided with a first guide groove and a second guide groove; the push rod connecting part is rotatably connected with a first waist-shaped sheet through a first pin shaft, and the first pin shaft is simultaneously and slidably arranged in the third guide groove and the fifth guide groove in a penetrating manner; the front support connecting part is rotatably connected with a second waist-shaped sheet through a second pin shaft, and the second pin shaft is simultaneously and slidably arranged in the second guide groove and the sixth guide groove in a penetrating manner; a sliding part is arranged in the seventh guide groove in a sliding fit manner, one end of the first waist-shaped sheet, which is far away from the first pin shaft, and one end of the second waist-shaped sheet, which is far away from the second pin shaft, are rotatably connected with the sliding part, and the sliding part is simultaneously arranged in the first guide groove and the fourth guide groove in a sliding and penetrating manner; the utility model has the advantages that the whole structure is simple, the folding joint volume is smaller, and the operation is very convenient and fast to fold.

Description

Linkage folding baby carriage structure

Technical Field

The utility model relates to a bassinet structure that linkage was closed is received.

Background

The baby carriage is a tool vehicle designed for providing convenience for outdoor activities of babies, and is a transportation tool for babies to walk instead.

The baby carriage in the prior art comprises a carriage frame with an unfolding position and a folding position, a front wheel assembly arranged at the front part of the bottom of the carriage frame, a rear wheel assembly arranged at the rear part of the bottom of the carriage frame, a locking mechanism used for locking the carriage frame at the unfolding position, and a seat pocket mechanism arranged on the carriage frame and used for people to sit. However, the conventional foldable stroller cannot be quickly folded in an interlocking manner due to the various folding mechanisms.

Disclosure of Invention

The utility model discloses the purpose is: provides a linkage folding baby carriage structure to solve the problem that the prior baby carriage can not be quickly linked and folded.

The technical scheme of the utility model is that: a linkage folding baby carrier structure comprises a push rod assembly, a front support assembly and a rear support assembly, wherein a push rod connecting part at the lower end of the push rod assembly, a front support connecting part at the upper part of the front support assembly and a rear support connecting part at the upper part of the rear support assembly are rotatably connected; the push rod connecting part is rotatably connected with a first waist-shaped sheet through a first pin shaft, and the first pin shaft penetrates through the third guide groove and the fifth guide groove simultaneously and is in sliding fit with the third guide groove and the fifth guide groove respectively; the front support connecting part is rotatably connected with a second waist-shaped piece through a second pin shaft, and the second pin shaft simultaneously penetrates through the second guide groove and the sixth guide groove and is respectively in sliding fit with the second guide groove and the sixth guide groove; a sliding part is arranged in the seventh guide groove in a sliding fit manner, one end of the first waist-shaped sheet, which is far away from the first pin shaft, and one end of the second waist-shaped sheet, which is far away from the second pin shaft, are rotatably connected with the sliding part, and the sliding part is simultaneously arranged in the first guide groove and the fourth guide groove in a penetrating manner and is respectively in sliding fit with the first guide groove and the fourth guide groove; the first waist-shaped sheet, the second waist-shaped sheet, the first pin shaft, the second pin shaft and the sliding part are all arranged in the joints at the rotary connection parts of the push rod assembly, the front support assembly and the rear support assembly and are not exposed.

Furthermore, a first locking mechanism is arranged at the rotary connection position of the push rod assembly, the front support assembly and the rear support assembly.

Furthermore, the first locking mechanism comprises a locking block, a mounting groove for the locking block to be mounted and slide is formed in the push rod connecting portion, a first spring is arranged between the locking block and the mounting groove, a protruding portion extends outwards from one side of the locking block, an eighth guide groove for the protruding portion to be inserted and slide is formed in the front support connecting portion, and a locking groove is formed in one end of the eighth guide groove in a radially inward extending mode;

when the baby carriage is in the unfolding state, the convex part of the lock block is clamped in the lock groove under the action of the first spring, and at the moment, the first locking mechanism is in the locking state.

Furthermore, the upper end of the push rod assembly is rotatably connected with a push handle assembly, and a second locking mechanism is arranged at the rotary connection position of the push handle assembly and the push rod assembly.

Further, the second locking mechanism comprises a push handle rotating seat at the lower end of the push handle component, a push rod rotating seat at the upper end of the push rod component and a gear, a first tooth groove and a second tooth groove which are corresponding to each other are respectively arranged in the push handle rotating seat and the push rod rotating seat, the gear is arranged between the first tooth groove and the second tooth groove, a second spring is arranged between the gear and the push rod rotating seat, a sliding seat capable of sliding relative to the pushing handle rotating seat in the radial direction is arranged in the pushing handle rotating seat, a third spring is arranged between the sliding seat and the pushing handle rotating seat, a linkage block which is coaxial with the gear is arranged between the gear and the sliding seat, one end of the linkage block is matched with the inclined plane of the V-shaped lug of the sliding seat through a V-shaped groove, a clamping part convexly arranged at the other end of the linkage block penetrates through a gear shaft hole to be in inserted fit with a matching block in the push rod rotating seat, and a first traction lock is connected between the matching block and the locking block; the push handle assembly is provided with an unlocking mechanism, and the unlocking mechanism is connected with the sliding seat through a second traction lock;

when the baby carriage is unfolded, the gear is embedded in the first tooth groove and the second tooth groove at the same time, the push handle assembly and the push rod assembly cannot rotate relatively at the moment, and the second locking mechanism is in a locking state;

when the baby carriage is folded, the unlocking mechanism is operated to drive the sliding seat to move upwards through the second traction lock, the V-shaped projection of the sliding seat is in sliding fit with the inclined plane of the V-shaped groove to drive the linkage block and the gear to slide transversely, the gear completely enters the first tooth groove of the push rod rotating seat, and the push handle assembly can rotate relative to the push rod assembly at the moment; when pushing away the folding time of drawing in of the subassembly relative push rod subassembly, the joint portion of interlock piece can drive the cooperation piece and rotate, and then drives the locking piece through first traction lock and withdraw from the locked groove and get into eighth guide way, has removed the locking of first locking mechanism, this moment push rod subassembly, front bracket assembly and back bracket assembly can advance to fold in, and then accomplish whole car and fold.

Furthermore, one end of the first waist-shaped sheet, which is far away from the first pin shaft, and one end of the second waist-shaped sheet, which is far away from the second pin shaft, are coaxially and rotationally connected with the sliding part or are eccentrically and rotationally connected with the sliding part.

The utility model has the advantages that:

1. the utility model discloses in sliding fit between push rod assembly, preceding support assembly and the back support assembly through first round pin axle and third guide way and the fifth guide way, sliding fit between second round pin axle and second guide way and the sixth guide way, sliding fit between slider and first guide way and the fourth guide way and the interlock effect of first waist type piece and second waist type piece realize three's expansion and receipts, overall structure is simple, and folding joint volume is littleer.

2. The utility model discloses in push rod subassembly upper portion still rotates to be connected with and pushes away the subassembly, and second locking mechanical system between the two is interlock formula mechanism with first locking mechanical system, and on the one hand the progress has reduced the volume that whole car receipts were closed after, and on the other hand pushes away the locking that first locking mechanical system can be relieved automatically to the subassembly at the folding in-process that draws in, unblock, receipts are closed the operation ten fens convenient and fast.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the utility model in a use state;

FIG. 2 is a schematic view of an assembly structure of the push rod assembly, the front support assembly and the rear support assembly shown in FIG. 1 at a certain angle of the pivotal connection;

FIG. 3 is a schematic view of an assembly structure of the push rod assembly, the front support assembly and the rear support assembly of FIG. 1 at another angle of the pivotal connection;

FIG. 4 is a side view of the FIG. 3 in the expanded configuration;

FIG. 5 is a side view of the folding process of FIG. 3;

FIG. 6 is a schematic view of an assembly structure of the push rod assembly and the push handle assembly shown in FIG. 1 at a certain angle of the rotary connection;

FIG. 7 is a schematic view of an assembly structure of the push rod assembly and the push handle assembly shown in FIG. 1 at another angle of the rotational connection;

fig. 8 is a schematic structural diagram of the folding process of the present invention;

fig. 9 is a schematic structural view after the folding of the present invention.

Wherein: 1 a push rod assembly; 2, a front support component; 3, a rear support component; 4, a push rod connecting part; 5 a front bracket connecting part; 6, a rear bracket connecting part; 7 a first guide groove; 8 a second guide groove; 9 a third guide groove; 10 a fourth guide groove; 11 a fifth guide groove; 12 a sixth guide groove; 13 a seventh guide groove; 14 a first pin; 15 a first waist panel; 16 a second pin; 17 a second waist panel; 18 a slide member; 19 a first locking mechanism; 19-1 locking block; 19-2 mounting grooves; 19-3 a first spring; 19-4 convex part; 19-5 eighth guide way; 19-6 locking grooves; 20 a push handle assembly; 21 a second locking mechanism; 21-1, pushing a rotating seat; 21-2 push rod rotating seat; 21-3 gears; 21-4 first tooth grooves; 21-5 second tooth grooves; 21-6 second springs; 21-7 sliding seats; 21-8 third springs; 21-9 linkage blocks; 21-10V type groove; 21-11V-shaped bumps; 21-12 clamping parts; 21-13 of a matching block; 22 a first drag lock; 23 an unlocking mechanism; 24 a second draw lock; 25 a front wheel assembly; 26 rear wheel assembly.

Detailed Description

The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present invention. The conditions employed in the examples may be further adjusted according to specific conditions, and the conditions not specified are generally conditions in routine experiments.

As shown in fig. 1 to 9, a linkage folding stroller structure includes a push rod assembly 1, a front support assembly 2, a rear support assembly 3, a front wheel assembly 25 disposed below the front support assembly 2, and a rear wheel assembly 26 disposed below the rear support assembly 3; push rod connecting portion 4, the fore-stock connecting portion 5 on 2 upper portions of fore-stock subassembly and the 6 three of the rear carriage connecting portion 6 on 3 upper portions of rear carriage subassembly of push rod subassembly 1 lower extreme rotate to be connected its characterized in that: the push rod connecting part 4 is provided with a first guide groove 7 and a second guide groove 8, the front bracket connecting part 5 is provided with a third guide groove 9 and a fourth guide groove 10, and the rear bracket connecting part 6 is provided with a fifth guide groove 11, a sixth guide groove 12 and a seventh guide groove 13; the push rod connecting part 4 is rotatably connected with a first waist-shaped piece 15 through a first pin shaft 14, and the first pin shaft 14 penetrates through the third guide groove 9 and the fifth guide groove 11 simultaneously and is in sliding fit with the third guide groove and the fifth guide groove respectively; the front support connecting part 5 is rotatably connected with a second waist-shaped piece 17 through a second pin shaft 16, and the second pin shaft 16 simultaneously penetrates through the second guide groove 8 and the sixth guide groove 12 and is respectively in sliding fit with the second guide groove and the sixth guide groove; a sliding part 18 is arranged in the seventh guide groove 13 in a sliding fit manner, one end of the first waist-shaped piece 15, which is far away from the first pin 14, one end of the second waist-shaped piece 17, which is far away from the second pin 16, is rotatably connected with the sliding part 18, and the sliding part 18 penetrates through the first guide groove 7 and the fourth guide groove 10 simultaneously and is in sliding fit with the first guide groove and the fourth guide groove respectively. The push rod assembly 1, the front support assembly 2 and the rear support assembly 3 are unfolded and folded through sliding fit between the first pin shaft 14 and the third guide groove 9 and the fifth guide groove 11, sliding fit between the second pin shaft 16 and the second guide groove 8 and the sixth guide groove 12, and sliding fit between the sliding piece 18 and the first guide groove 7 and the fourth guide groove 10.

In this embodiment, the first waist-shaped piece 15, the second waist-shaped piece 17, the first pin 14, the second pin 16 and the sliding part 18 are all installed inside the joint at the rotational connection part of the push rod assembly 1, the front support assembly 2 and the rear support assembly 3 and are not exposed, so that the overall appearance structure is more concise and attractive, and hidden danger or damage caused by exposed parts is avoided.

In this embodiment, the sliding member 18 is preferably a pin-column structure, and one end of the first waist-shaped piece 15 away from the first pin 14 and one end of the second waist-shaped piece 17 away from the second pin 16 are coaxially and rotatably connected with the sliding member 18.

In this embodiment, a first locking mechanism 19 is disposed at the rotational connection position of the push rod assembly 1, the front support assembly 2 and the rear support assembly 3. First locking mechanical system 19 includes locking piece 19-1, it installs and gliding mounting groove 19-2 to supply locking piece 19-1 to have in the push rod connecting portion 4, be equipped with first spring 19-3 between locking piece 19-1 and the mounting groove 19-2, locking piece 19-1 one side is outwards stretched out and is had protruding portion 19-4, have on the preceding support connecting portion 5 and supply protruding portion 19-4 to insert and establish and gliding eighth guide way 19-5, and the radial inward extension of eighth guide way 19-5 one end is formed with locking groove 19-6.

In this embodiment, the push rod assembly 1 is rotatably connected to a push handle assembly 20 at an upper end thereof, and a second locking mechanism 21 is disposed at a rotational connection position of the push handle assembly 20 and the push rod assembly 1. The second locking mechanism 21 comprises a push handle rotating seat 21-1 at the lower end of the push handle assembly 20, a push rod rotating seat 21-2 at the upper end of the push rod assembly 1 and a gear 21-3, a first tooth groove 21-4 and a second tooth groove 21-5 are respectively arranged in the push handle rotating seat 21-1 and the push rod rotating seat 21-2 correspondingly, the gear 21-3 is arranged between the first tooth groove 21-4 and the second tooth groove 21-5, a second spring 21-6 is arranged between the gear 21-3 and the push rod rotating seat 21-2, a sliding seat 21-7 capable of sliding radially relative to the push handle rotating seat 21-1 is arranged in the push handle rotating seat 21-1, a third spring 21-8 is arranged between the sliding seat 21-7 and the push handle rotating seat 21-7, and a linkage block 21-9 coaxially arranged with the gear 21-3 is arranged between the gear 21-3 and the sliding seat 21-7, one end of the linkage block 21-9 is matched with the inclined surface of the V-shaped bump 21-11 of the slide seat 21-7 through a V-shaped groove 21-10, a clamping part 21-12 convexly arranged at the other end of the linkage block 21-9 passes through a gear shaft hole to be in inserted connection and matching with the matching block 21-13 in the push rod rotating seat 21-1, and a first traction lock 22 is connected between the matching block 21-13 and the lock block 19-1; the push handle assembly 20 is provided with an unlocking mechanism 23, and the unlocking mechanism 23 is connected with the sliding seats 21-7 through a second traction lock 24.

The utility model discloses a theory of operation does:

when the baby carriage is in the unfolding state, the convex part of the locking block 19-1 is clamped in the locking groove 19-6 under the action of the first spring 19-3, and at the moment, the first locking mechanism 19 is in the locking state. Meanwhile, the gear 21-3 is embedded in the first tooth groove 21-4 and the second tooth groove 21-5 at the same time, at this time, the push handle assembly 20 and the push rod assembly 1 cannot rotate relatively, and the second locking mechanism 21 is in a locking state.

When the baby carriage is folded, the unlocking mechanism 23 is operated to drive the sliding seat 21-7 to move upwards through the second traction lock 24, the V-shaped projection 21-11 of the sliding seat 21-7 is in sliding fit with the inclined plane of the V-shaped groove 21-10 to drive the linkage block 21-9 and the gear 21-3 to slide transversely, the gear 21-3 completely enters the first tooth groove 21-4 of the push rod rotating seat 21-1, and the push handle assembly 20 can rotate relative to the push rod assembly 1 at the moment; when the push handle assembly 20 is folded and folded relative to the push rod assembly 1, the clamping portion 21-12 of the linkage block 21-9 drives the linkage block 21-13 to rotate, and then the first traction lock 22 drives the locking block to exit from the locking groove and enter the eighth guide groove 19-5, so that the locking of the first locking mechanism 19 is released, and at the moment, the push rod assembly 1, the front support assembly 2 and the rear support assembly 3 can be folded and folded further, and the whole vehicle folding is completed.

The utility model discloses in sliding fit between push rod assembly 1, preceding support assembly 2 and back support assembly 3 through first round pin axle 14 and third guide way 9 and fifth guide way 11, sliding fit between second round pin axle 16 and second guide way 8 and the sixth guide way 12, sliding fit between slider 18 and first guide way 7 and fourth guide way 10, and the interlock effect of first waist type piece and second waist type piece, realize three's expansion and receipts, overall structure is simple, folding joint volume is littleer.

The utility model discloses in 1 upper portion of push rod subassembly still rotates to be connected with and pushes away subassembly 20, and second locking mechanical system 21 between the two is interlock formula mechanism with first locking mechanical system 19, has improved on the one hand and has reduced the volume that whole car receipts were closed, and on the other hand pushes away the locking that subassembly 20 can remove first locking mechanical system 19 automatically at the folding in-process that draws in, unblock, receipts operation ten minutes convenient and fast that receive.

The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. In addition to the above embodiments, other embodiments of the present invention are also possible. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the scope of the present invention as claimed.

Claims

1. The utility model provides a bassinet structure that linkage was closed, includes push rod subassembly (1), fore-stock subassembly (2) and after-poppet subassembly (3), push rod connecting portion (4) of push rod subassembly (1) lower extreme, fore-stock connecting portion (5) on fore-stock subassembly (2) upper portion and after-poppet subassembly (3) upper portion after-poppet connecting portion (6) three rotate to be connected its characterized in that: the push rod connecting part (4) is provided with a first guide groove (7) and a second guide groove (8), the front bracket connecting part (5) is provided with a third guide groove (9) and a fourth guide groove (10), and the rear bracket connecting part (6) is provided with a fifth guide groove (11), a sixth guide groove (12) and a seventh guide groove (13); the push rod connecting part (4) is rotatably connected with a first waist-shaped piece (15) through a first pin shaft (14), and the first pin shaft (14) penetrates through the third guide groove (9) and the fifth guide groove (11) simultaneously and is in sliding fit with the third guide groove and the fifth guide groove respectively; the front support connecting part (5) is rotatably connected with a second waist-shaped piece (17) through a second pin shaft (16), and the second pin shaft (16) penetrates through the second guide groove (8) and the sixth guide groove (12) simultaneously and is in sliding fit with the second guide groove and the sixth guide groove respectively; a sliding part (18) is arranged in the seventh guide groove (13) in a sliding fit manner, one end, away from the first pin shaft (14), of the first waist-shaped piece (15) and one end, away from the second pin shaft (16), of the second waist-shaped piece (17) are rotatably connected with the sliding part (18), and the sliding part (18) penetrates through the first guide groove (7) and the fourth guide groove (10) simultaneously and is in sliding fit with the first guide groove and the fourth guide groove respectively; the first waist-shaped piece (15), the second waist-shaped piece (17), the first pin shaft (14), the second pin shaft (16) and the sliding piece (18) are all arranged in the joint at the rotary connection part of the push rod assembly (1), the front support assembly (2) and the rear support assembly (3) and are not exposed.

2. A linkage-folding stroller structure according to claim 1, characterized in that: and a first locking mechanism (19) is arranged at the rotary connection part of the push rod assembly (1), the front support assembly (2) and the rear support assembly (3).

3. A linkage-folding stroller structure according to claim 2, characterized in that: the first locking mechanism (19) comprises a locking block (19-1), a mounting groove (19-2) for mounting and sliding the locking block (19-1) is formed in the push rod connecting portion (4), a first spring (19-3) is arranged between the locking block (19-1) and the mounting groove (19-2), a protruding portion (19-4) extends outwards from one side of the locking block (19-1), an eighth guide groove (19-5) for inserting and sliding the protruding portion (19-4) is formed in the front support connecting portion (5), and one end of the eighth guide groove (19-5) extends inwards in the radial direction to form a locking groove (19-6); when the baby carriage is in the unfolding state, the convex part of the lock block (19-1) is clamped in the lock groove (19-6) under the action of the first spring (19-3), and at the moment, the first locking mechanism (19) is in the locking state.

4. A linkage-folding stroller structure according to claim 1, characterized in that: the push rod assembly (1) upper end is connected with and pushes away a subassembly (20) in a rotating way, it is equipped with second locking mechanical system (21) to push away a subassembly (20) and push rod assembly (1) rotation junction.

5. A linkage-folding stroller structure according to claim 4, characterized in that: the second locking mechanism (21) comprises a push handle rotating seat (21-1) at the lower end of the push handle assembly (20), a push rod rotating seat (21-2) at the upper end of the push rod assembly (1) and a gear (21-3), the push handle rotating seat (21-1) and the push rod rotating seat (21-2) are respectively provided with a first tooth groove (21-4) and a second tooth groove (21-5) which correspond to each other, the gear (21-3) is arranged between the first tooth groove (21-4) and the second tooth groove (21-5), a second spring (21-6) is arranged between the gear (21-3) and the push rod rotating seat (21-2), a sliding seat (21-7) capable of sliding radially relative to the sliding seat is arranged in the push handle rotating seat (21-1), and a third spring (21-8) is arranged between the sliding seat (21-7) and the push handle rotating seat (21-1), a linkage block (21-9) which is coaxial with the gear (21-3) is arranged between the gear (21-3) and the sliding seat (21-7), one end of the linkage block (21-9) is matched with a V-shaped convex block (21-11) of the sliding seat (21-7) through a V-shaped groove (21-10), a clamping part (21-12) which is convexly arranged at the other end of the linkage block (21-9) penetrates through a gear shaft hole to be in inserted connection with a matching block (21-13) in the push handle rotating seat (21-1), and a first traction lock (22) is connected between the matching block (21-13) and the lock block (19-1); an unlocking mechanism (23) is arranged on the push handle assembly (20), and the unlocking mechanism (23) is connected with the sliding seat (21-7) through a second traction lock (24).

6. A linkage-folding stroller structure according to claim 1, characterized in that: one end of the first waist-shaped piece (15) far away from the first pin shaft (14) and one end of the second waist-shaped piece (17) far away from the second pin shaft (16) are coaxially and rotationally connected with the sliding piece (18) or eccentrically and rotationally connected with the sliding piece.