CN114620112B - Handlebar assembly of child stroller and child stroller - Google Patents

Abstract

The invention discloses a push rod assembly of a child stroller and the child stroller, wherein the push rod assembly comprises a base rod, a first rod and a second rod, the base rod is provided with a first end part and a second end part which are respectively arranged at two different ends in the length direction of the base rod, the first rod and the first end part are connected in a relatively sliding manner along the left-right direction, the second rod and the second end part are connected in a relatively sliding manner along the left-right direction, and the push rod assembly further comprises an operating piece movably arranged on the base rod. In the process of unfolding the frame of the baby carriage, a user only needs to drive the operation piece to move relative to the base rod, and can drive the first rod and the second rod to slide and stretch outwards relative to the base rod under the action of the linkage mechanism, so that the push rod assembly is unfolded in place along the left-right direction, and the whole process only needs to be operated by one hand, so that the operation is simpler, and great convenience is brought to the user.

Description

Handlebar assembly of child stroller and child stroller

Technical Field

The invention relates to the field of children's products, and in particular to a push handle assembly of a child stroller and the child stroller.

Background Art

Strollers provide great convenience for users to carry children on daily trips, and have gradually become one of the indispensable children's products. Strollers are basically foldable, so that users can fold them up for storage or carry when not in use.

Existing baby strollers have various structures, and most of them can be folded in the height direction, the front-back direction, and the left-right direction when folded. When folding or opening in the left-right direction, the operator usually needs to manually drive the upper cross bars of the push rods on both sides to move toward or away from each other, so that the push rods can be folded or opened in the left-right direction. This operation is inconvenient and affects the user experience.

Summary of the invention

The object of the present invention is to provide an improved handlebar assembly for a child stroller.

To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a push rod assembly of a child stroller, which has an unfolded state and a folded state, and the push rod assembly includes a base rod, a first rod and a second rod, the base rod extends in the left-right direction, the base rod has a first end and a second end which are respectively arranged at two different ends in its length direction, the first rod and the first end are connected to each other in a relatively slidable manner in the left-right direction, and the second rod and the second end are connected to each other in a relatively slidable manner in the left-right direction.

The push rod assembly also includes an operating member movably arranged on the base rod, and a linkage mechanism is arranged between the operating member and the first rod and the second rod. During the process of the push rod assembly being converted from a folded state to an unfolded state, when the operating member moves relative to the base rod, the linkage mechanism is driven to drive the first rod and the second rod to slide and extend outwardly relative to the base rod in the left and right directions.

Preferably, the operating member is rotatably disposed on the base rod around a rotating shaft, and an extension direction of an axial centerline of the rotating shaft and a length extension direction of the base rod are perpendicular to each other.

Preferably, the linkage mechanism includes a first traction rope and a second traction rope, one end of the first traction rope is fixed on the first rod and the other end is fixed on the operating member, one end of the second traction rope is fixed on the second rod and the other end is fixed on the operating member, and the connection position between the first traction rope and the operating member and the connection position between the second traction rope and the operating member are both arranged at a distance from the axis center line of the rotating shaft.

Further preferably, the linkage mechanism also includes a first guide member and a second guide member arranged on the base rod, the first traction rope is wound around the first guide member, and the second traction rope is wound around the second guide member, wherein the first guide member at least includes a first switching member, and the second guide member at least includes a second switching member, and along the left and right directions, the first switching member is always located on the outside of the connection position between the first traction rope and the first rod, and the second switching member is always located on the outside of the connection position between the second traction rope and the second rod.

Further preferably, the first guide member is arranged on the first end portion, the second guide member is arranged on the second end portion, the first guide member and the second guide member respectively have one group or multiple groups arranged at intervals along the left and right directions, and the first guide member and the second guide member are arranged on different sides of the axis of the rotating shaft.

Preferably, the operating member at least has a connecting portion, the connecting portion is rotatably arranged on the base rod around the rotating shaft, and the first traction cable and the second traction cable are respectively connected to the outer peripheral portion of the connecting portion.

Further preferably, the adapter portion is cylindrical, and the axis centerline of the rotating shaft and the axis centerline of the adapter portion extend colinearly.

Preferably, the base rod includes a rod body slidably connected to the first rod and the second rod, and a mounting seat fixedly arranged on the rod body, the mounting seat has a receiving cavity, the adapter portion is received in the receiving cavity and is rotatably connected to the mounting seat around the rotating shaft, the linkage mechanism is received in the receiving cavity, the operating member also has a handle portion extending outward from the outer peripheral portion of the connecting portion outside the receiving cavity, and the mounting seat is also provided with a guide groove for providing sliding guidance for the handle.

Preferably, the push rod assembly also includes a third rod extending in the up-down direction and fixed to the outer end of the first rod, a fourth rod extending in the up-down direction and fixed to the outer end of the second rod, the first rod, the base rod and the second rod are located between the third rod and the fourth rod in the left-right direction, and the mounting seat, the third rod and the fourth rod are located on the same side of the first rod, the rod body and the second rod in the up-down direction.

Another object of the present invention is to provide a child stroller having the above-mentioned handlebar assembly.

To achieve the above object, the technical solution adopted by the present invention is: a child stroller, including a frame that can be folded in the left and right directions, and the frame at least has the push rod assembly as described above.

Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: in the process of unfolding the stroller frame, the user only needs to drive the operating member to move relative to the base rod, and then the first rod and the second rod can be driven to slide and extend outward relative to the base rod under the action of the linkage mechanism, so that the push rod assembly can be unfolded into place in the left and right directions. The whole process only needs to be operated with one hand, the operation is relatively simple, and it brings great convenience to the user.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of a child stroller according to a specific embodiment of the present invention, wherein the push rod assembly is in an expanded state;

Figure 2 is a schematic diagram of the left structural view of Figure 1;

Figure 3 is a schematic diagram of the right side structure of Figure 1;

Figure 4 is a schematic diagram of the cross-sectional structure along the A-A line in Figure 3;

Figure 5 is a schematic diagram of the internal structure of the push rod assembly when it is in an expanded state;

Figure 6 is a schematic diagram of the internal structure of the push rod assembly during the transition from the folded state to the unfolded state;

Figure 7 is a schematic diagram of the internal structure of the push rod assembly in a folded state;

Among them: 10, frame; 1, first rod; 2, second rod; 3, base rod; 31, rod body; 32, mounting seat; 32a, receiving cavity; 32b, guide groove; 4, operating member; 41, adapter; 42, handle; 5, linkage mechanism; 51, first traction rope; 52, second traction rope; 53, first guide member; 53a, first reversing member; 54, second guide member; 54a, second reversing member; 6, third rod; 7, fourth rod; 8, rotating shaft; 9, lower push rod.

DETAILED DESCRIPTION

The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

Referring to a child stroller shown in FIGS. 1 to 3 , the stroller comprises a foldable frame 10, which at least comprises a push rod assembly having an unfolded state and a folded state, wherein the push rod assembly specifically comprises a base rod 3, a first rod 1, a second rod 2, and an operating member 4 movably arranged on the base rod 3. The base rod 3 extends in the left-right direction, the first rod 1 is slidably connected to the first end a of the base rod 3 in the left-right direction, the second rod 2 is slidably connected to the second end b of the base rod 3 in the left-right direction, and the first end a and the second end b are arranged at two different ends in the length direction of the base rod 3. A linkage mechanism 5 is arranged between the operating member 4 and the first rod 1 and the second rod 2. When the push rod assembly is switched between the folded state and the unfolded state, as the user operates the operating member 4 to make it move relative to the base rod 3, the linkage mechanism 5 is driven to drive the first rod 1 and the second rod 2 to slide relative to the base rod 3 in the left-right direction, respectively, so that the push rod assembly can be shortened or extended in the left-right direction.

In this embodiment, as shown in FIGS. 1 to 3 , the push rod assembly further includes a third rod 6 fixedly arranged at the outer end of the first rod 1 and extending in the up-down direction, and a fourth rod 7 fixedly arranged at the outer end of the second rod 2 and extending in the up-down direction. The first rod 1, the base rod 3 and the second rod 2 are located between the third rod 6 and the fourth rod 7 in the left-right direction, wherein the third rod 6 is integrally arranged with the first rod 1 or fixedly connected through an adapter, and the fourth rod 7 is also integrally arranged with the second rod 2 or fixedly connected through an adapter. The lower end of the third rod 6 and the lower end of the fourth rod 7 are respectively connected to other rods on the frame 10, where the third rod 6 and the fourth rod 7 are both upper push rods of the push rod assembly, and both are slidably and telescopically arranged on the lower push rod 9 on the corresponding side of the frame 10 in the up-down direction. When the frame 10 is unfolded or folded in the left-right direction, the push rod assembly is unfolded or folded in the left-right direction accordingly.

Referring to the push rod assembly of the stroller shown in FIGS. 4 to 7 , the operating member 4 is rotatably arranged on the base rod 3 around the rotating shaft 8, and the axis centerline extension direction of the rotating shaft 8 is perpendicular to the length extension direction of the base rod 3. When the operating member 4 is synchronously rotated during the process of unfolding or folding the frame 10, the push rod assembly can be switched between the unfolded state and the folded state. The linkage mechanism 5 includes a first traction rope 51 and a second traction rope 52. Specifically, one end of the first traction rope 51 is fixedly arranged on the first rod 1, and the other end is fixedly arranged on the operating member 4; one end of the second traction rope 52 is fixedly arranged on the second rod 2, and the other end is fixedly arranged on the operating member 4. The connection position between the first traction rope 51 and the operating rod 4, and the connection position between the second traction rope 52 and the operating member 4 are both arranged at a distance from the axis centerline of the rotating shaft 8. When the operator rotates the operating member 4, the end of the first traction rope 51 connected to the operating member 4 and the end of the second traction rope 52 connected to the operating member 4 are pulled respectively and move with the operating member 4, so that the first traction rope 51 and the second traction rope 52 are wound around the operating member 4 or released from the operating member 4, thereby driving the first rod 1 and the second rod 2 to slide relative to the base rod 3 respectively.

The linkage mechanism 5 also includes a first guide 53 and a second guide 54 arranged on the base rod 3. The first guide 53 is arranged on the first end a of the base rod 3, and the second guide 54 is arranged on the second end b of the base rod 3. The first guide 53 and the second guide 54 are arranged on different sides of the axis of the rotating shaft 8. The first guide 53 specifically includes a first reversing member 53a, and the second guide 54 specifically includes a second reversing member 54a. In the left and right directions, the first reversing member 53a is always located outside the connection position between the first traction rope 51 and the first rod 1 (specifically on the left side in the figure), and the second reversing member 54a is always located outside the connection position between the second traction rope 52 and the second rod 2 (specifically on the right side in the figure). The first traction rope 51 is wound around the first guide 53, and the second traction rope 52 is wound around the second guide 54.

In this embodiment, the first guide member 53 and the second guide member 54 are respectively provided in two groups spaced apart in the left-right direction. In other embodiments, the first guide member 53 and the second guide member 54 can also be provided in multiple groups spaced apart in the left-right direction to further improve the stability of the movement of the first traction rope 51 and the second traction rope 52 and guide them more accurately.

As shown in FIGS. 4 to 7 , in this embodiment, the operating member 4 comprises an adapter portion 41 and a handle portion 42 disposed on the outer peripheral portion of the adapter portion 41. The adapter portion 41 is rotatably disposed on the base rod 3 around the rotation axis 8. Here, the adapter portion 41 is cylindrical, the axis of the rotation axis 8 and the axis of the adapter portion 41 extend colinearly, and the handle portion 42 extends outward from the outer peripheral portion of the adapter portion 41. One end of the first traction cable 51 and one end of the second traction cable 52 are respectively fixedly connected to the outer peripheral portion of the adapter portion 41. When the adapter portion 41 rotates around the rotation axis 8, the first traction cable 51 and the second traction cable 52 can be wound around the outer peripheral portion of the adapter portion 41.

The base rod 3 specifically includes a rod body 31 slidably connected to the first rod 1 and the second rod 2, and a mounting seat 32 fixedly arranged on the rod body 31. The rod body 31 is hollow along the axial direction, and can be inserted into the first rod 1 and the second rod 2 in a sliding and telescopic manner along the left and right directions. The mounting seat 32 has a receiving cavity 32a, and the adapter 41 and the linkage mechanism 5 are both received in the above-mentioned receiving cavity 32a. The adapter 41 is rotatably connected to the mounting seat 32 around the rotating shaft 8. The handle 42 extends outward from the outer peripheral portion of the adapter 41 to the receiving cavity 32a. The mounting portion 32 is provided with a guide groove 32b for guiding the handle 42 to slide along a specific trajectory. The above-mentioned mounting seat 32 and the third rod 6 and the fourth rod 7 are located on the same side of the first rod 1, the second rod 2 and the rod body 31 in the up-down direction, that is, located at the lower side of the push rod assembly, so as to avoid protrusion and affect the use of the cart or affect the size of the frame 10 after folding.

The working process of this embodiment is described in detail below:

When the push rod assembly is in the folded state, as shown in FIG7 , the first rod 1 and the second rod 2 are respectively in the retracted state relative to the base rod 3, and at this time, the handle 42 is located on the side of the second end b; when the push rod assembly needs to be unfolded at the same time during the unfolding process of the frame 10, as shown in FIG6 , the user needs to hold the handle 42 and push it along the guide groove 32b from the side where the second end b is located to the side where the first end a is located, thereby driving the adapter 41 to rotate around the rotating shaft 8. The first traction rope 51 and the second traction rope 52 are each connected to the adapter 41. One end will be pulled and gradually wound around the adapter 41, while the other end connected to the first rod 1 and the second rod 2 pulls the first rod 1 and the second rod 2 to slide outward and extend relative to the rod body 31 of the base rod 3; when the push rod assembly reaches the unfolded state, as shown in FIG5 , a part of the first traction rope 51 and the second traction rope 52 is wound around the adapter 41, the handle 42 is located in the direction of the first end a, and the push rod assembly is unfolded in place along the left and right directions. The above process only requires the operator to operate with one hand, which is very simple and convenient.

Of course, during the folding process of the frame 10, the push rod assembly can also be converted to the folded state by rotating the operating member 4. Specifically, the operator rotates the handle portion 42 to move it toward the side where the second end portion b is located, so that the first traction rope 51 or the second traction rope 52 is released, and the first rod 1 and the second rod 2 automatically move toward each other as the other rods on the frame 10 are retracted in the left and right directions to achieve retraction in the left and right directions. In the above process, the user can also choose not to rotate the handle portion 42, but instead automatically rotate it due to the pulling of the first traction rope 51 and the second traction rope 52.

The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. They cannot be used to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A push rod assembly of a child stroller having an extended state and a collapsed state, characterized in that: the push rod assembly comprises a base rod, a first rod and a second rod, the base rod extends along the left-right direction, the base rod is provided with a first end part and a second end part which are respectively arranged at two different ends in the length direction of the base rod, the first rod and the first end part can be connected in a relatively sliding manner along the left-right direction, the second rod and the second end part can be connected in a relatively sliding manner along the left-right direction, the push rod assembly also comprises an operating piece movably arranged on the base rod, a linkage mechanism is arranged between the operating piece and the first rod and between the operating piece and the second rod, the linkage mechanism comprises a first traction rope and a second traction rope, one end of the first traction rope is fixedly arranged on the first rod, the other end of the first traction rope is fixedly arranged on the operating piece, and the other end of the second traction rope is fixedly arranged on the second rod, and the other end of the second traction rope is fixedly arranged on the operating piece, and the push rod assembly is driven to extend the first rod and the second rod relatively along the left-right direction when the operating piece moves relative to the base rod; in the folding process of the child stroller, when the operation piece moves relative to the base rod, the first rod and the second rod automatically move in opposite directions along with folding of the child stroller along the left-right direction so as to realize folding along the left-right direction.

2. The stroller push rod assembly of claim 1, wherein: the operating piece is rotatably arranged on the base rod around a rotating shaft, and the extending direction of the axis of the rotating shaft is mutually perpendicular to the extending direction of the length of the base rod.

3. The stroller push rod assembly of claim 2, wherein: the connecting position between the first traction rope and the operating piece and the connecting position between the second traction rope and the operating piece are arranged at intervals with the axial lead of the rotating shaft.

4. A push rod assembly of a stroller according to claim 3, wherein: the linkage mechanism further comprises a first guide piece and a second guide piece which are arranged on the base rod, the first traction rope is wound on the first guide piece, the second traction rope is wound on the second guide piece, the first guide piece at least comprises a first reversing piece, the second guide piece at least comprises a second reversing piece in the left-right direction, the first reversing piece is always located on the outer side of the connecting position between the first traction rope and the first rod, and the second reversing piece is always located on the outer side of the connecting position between the second traction rope and the second rod.

5. The stroller push rod assembly of claim 4, wherein: the first guide piece is arranged on the first end part, the second guide piece is arranged on the second end part, the first guide piece and the second guide piece are respectively provided with a group or a plurality of groups which are arranged at intervals along the left-right direction, and the first guide piece and the second guide piece are respectively arranged on the two different sides of the axial lead of the rotating shaft.

6. A push rod assembly of a stroller according to claim 3, wherein: the operation piece is provided with at least a switching part, the switching part is rotationally arranged on the base rod around the rotating shaft, and the first traction rope and the second traction rope are respectively connected to the outer peripheral part of the switching part.

7. The stroller push rod assembly of claim 6, wherein: the switching part is cylindrical, and the axial lead of the rotating shaft and the axial lead of the switching part extend in a collinear way.

8. The stroller push rod assembly of claim 6, wherein: the base rod comprises a rod body which is in sliding connection with the first rod and the second rod, and an installation seat which is fixedly arranged on the rod body, the installation seat is provided with an accommodating cavity, the switching part is accommodated in the accommodating cavity and is rotationally connected with the installation seat around the rotating shaft, the linkage mechanism is accommodated in the accommodating cavity, the operation piece is further provided with a handle part which extends outwards from the outer peripheral part of the connecting part to the outside of the accommodating cavity, and the installation seat is further provided with a guide groove for providing sliding guide of the handle.

9. The stroller push rod assembly of claim 8, wherein: the push rod assembly further comprises a third rod extending in the vertical direction and fixedly arranged at the outer end part of the first rod, a fourth rod extending in the vertical direction and fixedly arranged at the outer end part of the second rod, wherein the first rod, the base rod and the second rod are positioned between the third rod and the fourth rod in the horizontal direction, and the mounting seat, the third rod and the fourth rod are positioned on the same side of the first rod, the rod body and the second rod in the vertical direction.

10. The utility model provides a children's shallow, includes the frame that can follow left and right directions and fold up, its characterized in that: the frame having at least a push rod assembly according to any one of claims 1 to 9.