CN212637625U

CN212637625U - Children's barrow

Info

Publication number: CN212637625U
Application number: CN202021850411.7U
Authority: CN
Inventors: 高翔; 陈健
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-03-02
Anticipated expiration: 2030-08-28

Abstract

The utility model discloses a folding children's shallow, including first member, second member and third member, the three rotates through the rotation joint and connects, rotates the joint including the first rotation portion of locating a first member tip, locate the second rotation portion of second member tip to and locate the third rotation portion of third member tip, first rotation portion rotates around first pivot with the second and is connected, and the second rotates the portion and rotates around the second pivot with the third and be connected. In the process of folding the frame, the first rod piece rotates around the first rotating shaft and is folded towards the second rod piece, and the third rod piece is linked to rotate around the second rotating shaft and is folded towards the second rod piece. The utility model discloses children's shallow is connected through the rotation of three support in revolute joint department, has realized the folding of frame, and beta structure is simple, and each member of folding back frame is compact, and whole car occupation space is little, is convenient for carry and deposit.

Description

Children's barrow

Technical Field

The utility model relates to a children's shallow.

Background

In the existing foldable baby stroller, folding mechanisms are different, most of the foldable baby stroller has the problems of complex folding structure, large size after folding and the like, and inconvenience is brought to production and use.

Disclosure of Invention

The utility model aims at providing a children's shallow that beta structure is simple, folding small.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

a child stroller comprises a frame, wherein the frame is provided with two side supports which are respectively arranged on the left side and the right side, the frame is in an unfolded state and a folded state, each side support comprises a first rod piece, a second rod piece and a third rod piece which are mutually and rotatably connected through a rotating joint, the rotating joint comprises a first rotating part arranged at the lower end part of the first rod piece, a second rotating part arranged at the upper end part of the second rod piece and a third rotating part arranged at the upper end part of the third rod piece, the first rotating part and the second rotating part are rotatably connected around a first rotating shaft, the second rotating part and the third rotating part are rotatably connected around a second rotating shaft, and the axial lead of the first rotating shaft is parallel to the axial lead of the second rotating shaft;

the second rotating part is provided with a circular arc-shaped first sliding groove with the circle center positioned on the axial lead of the first rotating shaft, the first rotating part is fixed with a pin shaft with the axial lead parallel to the axial lead of the first rotating shaft, and the pin shaft is inserted into the first sliding groove in a matched manner and is connected with the first sliding groove in a sliding manner;

a second sliding groove is formed in the third rotating part, a front limiting part is arranged at the front end of the second sliding groove, the second sliding groove and the first sliding groove are provided with overlapping parts, the pin shaft is inserted into the first sliding groove and the second sliding groove at the same time and is connected with the first sliding groove and the second sliding groove in a sliding mode, and the distance that the pin shaft can slide in the second sliding groove is smaller than the distance that the pin shaft can slide in the first sliding groove;

when the frame is converted from the unfolded state to the folded state, the first rod piece rotates around the first rotating shaft and is folded towards the second rod piece, and the pin shaft abuts against the front limiting part and pushes the third rod piece to rotate around the second rotating shaft and be folded towards the second rod piece;

the stroller further comprises a locking mechanism for locking the frame in the unfolded state.

Preferably, the front limiting portion of the second sliding slot has a section of straight sliding slot extending downward, and when the pin abuts against the front limiting portion and pushes the third rod to rotate around the second rotating shaft and to close toward the second rod, the pin slides downward along the straight sliding slot.

Preferably, when the frame is in the deployed state, the first rotating shaft is located below the second rotating shaft.

Preferably, in each side of the rotary joint, the second rotary part has two pieces arranged in parallel, the first rotary part also has two pieces arranged in parallel, one of the second rotary parts is inserted between the two pieces of the first rotary parts, and the third rotary part is located at the innermost side of the rotary joint.

Preferably, the rear end of the second sliding chute is provided with a rear limiting part, and when the frame is in the unfolding state, the pin shaft abuts against the rear limiting part.

Preferably, the first rod piece is a push rod, the second rod piece is a front support with a front wheel arranged at the bottom, and the third rod piece is a rear support with a rear wheel arranged at the bottom.

Preferably, the locking mechanism includes a lock pin slidably disposed on the first rotating portion, a lock groove disposed on the second rotating portion and into which the lock pin is fittingly inserted, and an elastic member for providing an acting force required for the lock pin to slide toward the lock groove, and the lock pin is inserted into the lock groove when the locking mechanism is in a locked state.

Preferably, the sliding direction of the lock pin is perpendicular to the first rotating shaft axis.

Preferably, the first rod comprises an upper rod and a lower rod, the upper rod and the lower rod are rotatably connected around a third rotating shaft, a flexible traction cable is arranged in the lower rod, one end of the traction cable is connected with the lock pin, and the other end of the traction cable is connected with the upper rod.

Preferably, a traction wheel which takes the third rotating shaft as a rotating shaft center is fixed on the upper rod, and the traction cable is wound and fixed on the traction wheel.

The utility model relates to up-down, left-right, front-back, inside-outside and other direction words, which are defined according to the up-down, left-right, front-back, inside-outside directions of children when children go-cart.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: the utility model discloses children's shallow rotates through the rotation joint and connects first member, second member, third member for can drive the relative second member of third member when the relative second member of first member rotates and rotate and draw close, it is more simple and convenient to fold, and each member of frame is compact after simple structure's folding, and whole car occupation space is little, is convenient for carry and deposit.

Drawings

FIG. 1 is a schematic perspective view of a stroller with a deployed configuration (with the pivot joint housing at A omitted);

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

FIG. 3 is a right side view of the stroller in the deployed position in accordance with the present embodiment;

fig. 4 is a schematic perspective view of the stroller in the middle state in this embodiment;

FIG. 5 is a right side view of the push rod and rear bracket arrangement of FIG. 4;

fig. 6 is a schematic perspective view of the stroller in the middle state in this embodiment;

fig. 7 is a right side view of the stroller in the intermediate state in this embodiment;

FIG. 8 is a view of the push rod and the rear bracket of FIG. 7;

fig. 9 is a schematic perspective view of the stroller in the folded state in this embodiment;

FIG. 10 is a right side view of the stroller in this embodiment in a collapsed position;

FIG. 11 is a view of the push rod and the rear bracket of FIG. 10;

FIG. 12 is a partially enlarged exploded view of the rotary joint in the present embodiment;

FIG. 13 is a partially enlarged right side view of the rotary joint in the expanded state in the present embodiment;

FIG. 14 is a cross-sectional view taken along line B-B of FIG. 13;

FIG. 15 is a right side view of the front bracket of the present embodiment;

FIG. 16 is a right side view of the rear bracket of the present embodiment;

FIG. 17 is a right side view of the push rod of the present embodiment;

wherein: 1. a push rod; 11. a rod is arranged; 12. a lower rod; 13. a push rod unlock button; 2. a front bracket 21, a front wheel; 3. a rear bracket; 31. a rear wheel; 4. a revolute joint; 41. a first rotating section; 411. a pin shaft; 412. locking the groove; 42. a second rotating part; 421. a first chute; 422. locking the groove; 43. a third rotating part; 431. a second chute; 432. a front stopper; 433. a rear limit portion; 44. a revolute joint housing; m, a first rotating shaft; n, a second rotating shaft; p, a third rotating shaft.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 and 9, a stroller comprises a frame having an unfolded state and a folded state, the frame has two side supports respectively disposed at the left and right sides, each side support comprises a first rod, a second rod and a third rod rotatably connected to each other by a rotating joint 4, in this embodiment, the first rod, the second rod and the third rod are specifically a push rod 1, a front support 2 having a front wheel 21 at the front of the bottom and a rear support 3 having a rear wheel 31 at the rear of the bottom, respectively, the push rod 1 at each side further comprises an upper rod 11 and a lower rod 12, and the upper rod 11 and the lower rod 12 are rotatably connected around a third rotating shaft P.

As shown in fig. 2, the rotary joint 4 includes a first rotary part 41 disposed at the lower end of the push rod 1, a second rotary part 42 disposed at the upper end of the front bracket 2, a third rotary part 43 disposed at the upper end of the rear bracket 3, and a rotary joint housing 44 sleeved outside; the first rotating portion 41 and the second rotating portion 42 are rotatably connected around a first rotating shaft M, the second rotating portion 42 and the third rotating portion 43 are rotatably connected around a second rotating shaft N, and the axial line of the first rotating shaft M is parallel to the axial line of the second rotating shaft N.

As shown in fig. 2, 12, 15 and 17, the second rotating portion 42 is provided with a circular arc-shaped first sliding slot 421 whose center is located on the axis of the first rotating shaft M, the first rotating portion 41 is fixed with a pin 411 whose axis is parallel to the axis of the first rotating shaft M, and the pin 411 is fittingly inserted into the first sliding slot 421 and is slidably connected with the first sliding slot 421.

As shown in fig. 12, 16 and 17, the third rotating portion 43 is provided with a second sliding slot 431, the front end and the rear end of the second sliding slot 431 are respectively provided with a front limit portion 432 and a rear limit portion 433, and the front limit portion 432 is further provided with a straight sliding slot extending downward. The second sliding groove 431 and the first sliding groove 421 have an overlapping portion, the pin 411 is inserted into and slidably connected to the first sliding groove 421 and the second sliding groove 431 at the same time, and a distance that the pin 411 can slide in the second sliding groove 431 is smaller than a distance that the pin 411 can slide in the first sliding groove 421.

As shown in fig. 14, in each side of the rotary joint 4, the second rotating portion 42 has two pieces arranged in parallel, and the first rotating portion 41 also has two pieces arranged in parallel, wherein one piece of the second rotating portion 42 is inserted between the two pieces of the first rotating portion 41, and the third rotating portion 43 is located at the innermost side of the rotary joint 4, and the pin shaft 411 passes through the entire rotary joint 4.

As shown in fig. 2, 12, 15 and 17, the stroller further includes a locking mechanism for locking the frame in the deployed state. The locking mechanism includes a locking pin 412 slidably provided on the first rotating portion 41, a locking groove 422 provided on the second rotating portion 42 and into which the locking pin 412 is fittingly inserted, and an elastic member (not shown) for providing an elastic force required for the locking pin 412 to slide toward the locking groove 422. The sliding direction of the lock pin 412 is perpendicular to the first rotation axis M, and the lock pin 412 is inserted in the lock groove 422 when the lock mechanism is in the locked state.

In addition, the child stroller in this embodiment further includes an unlocking mechanism for unlocking the frame from the locked state. As shown in fig. 4, the unlocking mechanism includes a push rod unlocking button 13 disposed on the upper rod 11, a flexible traction cable (not shown) disposed in the lower rod 12, and a traction wheel (not shown) fixed on the upper rod 11 and having a rotation axis of the third rotation shaft P, wherein one end of the traction cable is connected to the lock pin 412, and the other end is wound around and fixed on the traction wheel. The push rod unlocking mechanism is not the technical point to be protected in the patent, and the structure in the prior art can be adopted.

As shown in fig. 1 and fig. 2, when the frame of the stroller of this embodiment is in the unfolded state, the first rotating shaft M is located below the second rotating shaft N, and the pin 411 abuts against the rear limiting portion 433 of the second sliding groove 431.

As shown in fig. 4 and 5, when the stroller needs to be folded, the push rod unlocking button 13 is firstly pressed to enable the upper rod 11 to rotate relative to the lower rod 12 about the third rotation axis P, and in the process that the upper rod 11 rotates and moves closer to the lower rod 12, the traction wheel in the upper rod 11 is driven to rotate about the third rotation axis P, so as to pull the traction rope to pull the lock pin 412, and the lock pin 412 exits from the lock groove 422, and the locking mechanism is unlocked to enable the several rod pieces connected through the rotational joint 4 to rotate relative to each other for folding.

As shown in fig. 6 to 8, the stroller is folded continuously, the push rod 1 is pressed downward to rotate around the first rotation axis M and move toward the front bracket 2 and the rear bracket 3, and the pin 411 slides forward along the first sliding groove 421 and the second sliding groove 431, during which no relative rotation exists between the front bracket 2 and the rear bracket 3 until the pin 411 slides to the front limit portion 432 of the second sliding groove 431.

As shown in fig. 9 to 11, when the push rod 1 is pressed downwards, the pin 411 abuts against the front limiting portion 432 and pushes the rear bracket 3 to rotate around the second rotation axis N and fold towards the front bracket 2, and during this process, the pin 411 slides downwards along the straight sliding slot of the front limiting portion 432. The final folding state of the frame is shown in fig. 9, the push rod 1, the front support 2 and the rear support 3 are compactly folded together, and the frame is small in overall folding volume and convenient to carry and store.

When the stroller in this embodiment is converted from the folded state to the unfolded state, the above steps are performed in reverse, that is, the push rod 1 is pulled up to rotate around the first rotation axis M, and the pin 411 slides backwards along the first sliding groove 421 and the second sliding groove 431; when the pin 411 slides to the rear limiting part 433 of the second sliding groove 431, the push rod 1 continues to be pulled upwards, and the pin 411 abuts against the rear limiting part 433 and pushes the rear bracket 3 to rotate around the second rotating shaft N and separate from the front bracket 2; until the rear support 3 and the front support 2 are completely unfolded, the lock pin 412 on the first rotating part 41 rotates to the lock slot 422, and then the upper rod 11 rotates around the third rotating shaft P to be unfolded, so that the lock pin 412 is slidably inserted into the lock slot 422 under the driving of the elastic element, and the frame is locked in the unfolded state.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a children's shallow, includes the frame, the frame has two collateral branch framves that the left and right sides was located to the branch, the frame has expansion state and fold condition, every the collateral branch frame all includes first member, second member and the third member that rotates the connection each other through rotating the joint, its characterized in that:

the rotating joint comprises a first rotating part arranged at one end part of the first rod piece, a second rotating part arranged at one end part of the second rod piece and a third rotating part arranged at one end part of the third rod piece, the first rotating part and the second rotating part are rotatably connected around a first rotating shaft, the second rotating part and the third rotating part are rotatably connected around a second rotating shaft, and the axis of the first rotating shaft is parallel to the axis of the second rotating shaft;

2. The stroller of claim 1, wherein: the front limiting part of the second sliding groove is provided with a section of straight sliding groove extending downwards, and when the pin shaft abuts against the front limiting part and pushes the third rod piece to rotate around the second rotating shaft and to be folded towards the second rod piece, the pin shaft slides downwards along the straight sliding groove.

3. The stroller of claim 1, wherein: when the frame is in the unfolding state, the first rotating shaft is positioned below the second rotating shaft.

4. The stroller of claim 1, wherein: in each side of the rotary joint, the second rotating part is provided with two pieces which are arranged in parallel, the first rotating part is also provided with two pieces which are arranged in parallel, one piece of the second rotating part is inserted between the two pieces of the first rotating part, and the third rotating part is positioned at the innermost side of the rotary joint.

5. The stroller of claim 1, wherein: the rear end of the second sliding groove is provided with a rear limiting part, and when the frame is in an unfolded state, the pin shaft abuts against the rear limiting part.

6. Child stroller according to any of claims 1 to 5, characterized in that: the first rod piece is a push rod, the second rod piece is a front support with a front wheel arranged at the bottom, and the third rod piece is a rear support with a rear wheel arranged at the bottom.

7. The stroller of claim 6, wherein: the locking mechanism comprises a lock pin which is slidably arranged on the first rotating part, a lock groove which is arranged on the second rotating part and can be used for the lock pin to be inserted in a matched mode, and an elastic piece which is used for providing acting force required by the lock pin to slide towards the lock groove, and when the locking mechanism is in a locking state, the lock pin is inserted into the lock groove.

8. The stroller of claim 7, wherein: the sliding direction of the lock pin is perpendicular to the first rotating shaft axis.

9. The stroller of claim 8, wherein: the first rod piece comprises an upper rod and a lower rod, the upper rod and the lower rod are connected in a rotating mode around a third rotating shaft, a flexible traction cable is arranged in the lower rod, one end of the traction cable is connected with the lock pin, and the other end of the traction cable is connected with the upper rod.

10. The stroller of claim 9, wherein: and a traction wheel which takes the third rotating shaft as a rotating shaft center is fixed on the upper rod, and the traction cable is wound and fixed on the traction wheel.