CN209904848U - Push rod assembly of folding stroller and folding stroller - Google Patents

Abstract

The utility model discloses a push rod subassembly and folding children's shallow of folding children's shallow, including two side push rod subassemblies that set up symmetrically, every side push rod subassembly includes horizontal pole, upper push rod, lower push rod, has the relative expansion position, the first relative position that switch through the relative pivot of the two between upper push rod and the lower push rod, is provided with between upper push rod and the lower push rod and locks the two at the locking device of relative expansion position, still has between upper push rod and the lower push rod and can switch in the relative position when the locking device unblock with the first relative position and draw in the position in; the cross rods in the two side push rod assemblies are mutually connected in a rotating way; the two cross rods are relatively close to each other, and the upper push rod and the lower push rod in the two side push rod assemblies are switched to a first relative position, so that the locking device is in an unlocking state. The utility model discloses, make the locking device unblock among the push rod assembly at the folding in-process of push rod assembly, simplified the whole folding operating procedure of shallow.

Description

Push rod assembly for folding stroller and folding stroller

technical field

The utility model relates to a push rod assembly of a folding children's stroller and a folding children's stroller.

Background technique

Folding stroller is a very common means of transportation for children. Children ride in the car and are pushed by adults. In order to facilitate the use and storage of consumers, when designing and manufacturing the cart, while ensuring safety, it is required to make the cart as light as possible as a whole, easy to fold and open, and small in size after being folded. Some children's strollers can be folded in the left and right directions while being folded up and down, so as to achieve the purpose of reducing the volume after folding, but this kind of stroller must cause the frame structure to be very complicated, with many rods, and the frame is relatively small. It is heavy, and the locking and unlocking of the push rod assembly needs to add a locking mechanism and unlocking parts, thus increasing the operation steps when the cart is folded and opened; and if the frame is not folded in the left-right direction, it directly reduces the frame in the left-right direction. The size on the top will cause the space for children to be cramped.

Utility model content

In order to solve the above problems, the purpose of the present invention is to provide a push rod assembly of a folding stroller and a folding stroller.

In order to achieve the above purpose, the technical solution adopted by the present utility model is: a push rod assembly for a folding stroller, comprising two side push rod assemblies symmetrically arranged on the left and right sides of the folding stroller, each side push rod The assembly includes a cross bar, an upper push rod whose upper part is connected to the cross bar, and a lower push rod that can be relatively pivotally connected to the upper push rod. The relative deployment position and the first relative position, the upper push rod and the lower push rod are provided with a locking device for locking the two in the relative deployment position, and the locking device is unlocked by the pivoting between the upper push rod and the lower push rod and The upper push rod and the lower push rod can be switched from the first relative position to the relative retracted position; the transverse rods in the two side push rod assemblies are rotatably connected to each other;

The push rod assembly has an open state and a folded state. When it is in the open state, the two horizontal bars are relatively unfolded, the upper push rod and the lower push rod are in a relative unfolded position, and the locking device is in a locked state; when the push handle assembly is in a locked state; During the transition from the open state to the folded state, the two cross bars are relatively close together, and the upper push bar and the lower push bar in the two side push bar assemblies are switched to the first relative position, so that the locking device is unlocked state; when the push rod assembly is in the folded state, the two transverse rods are kept relatively close, and the upper push rod and the lower push rod are in a relatively retracted position.

Further, the upper push rod and the lower push rod are connected in a relatively movable manner, and the relative retracted position and the first relative position are switched by the relative movement of the upper push rod and the lower push rod. When they are in the relative unfolding position and the first relative position, the upper push rod and the lower push rod are relatively extended. When the upper push rod and the lower push rod are in the relative retracted position, the upper push rod and the lower push rod relative retraction.

Furthermore, when the push handle assembly transitions from the open state to the folded state, the two horizontal bars rotate and protrude out of the plane formed by the two upper push bars.

Further, the locking device includes a lock hole opened on the lower push rod, a lock tongue slidably connected to the upper push rod and releasably inserted into the lock hole, an elastic member capable of inserting the lock tongue into the lock hole, and the lock The tongue has an inclined surface capable of slidingly contacting with the edge of the lock hole so that the lock tongue is separated from the lock hole.

Furthermore, the inclined plane is parallel to the relative pivot axis between the upper push rod and the lower push rod.

Further, when the push rod assembly is in the open state, the upper push rod and the lower push rod located on the left side of the folding stroller are inclined to the left rear from bottom to top, and the upper push rod and the lower push rod located on the right side of the folding stroller The lower push rods are tilted to the right and rear from bottom to top.

Furthermore, in the folded state of the push rod assembly, compared with the open state, the distance between the bottom ends of the lower push rods on the left and right sides remains unchanged, and the upper push rods on the left and right sides are closer together.

Furthermore, during the transition of the push rod assembly from the open state to the folded state, the relative proximity between the two horizontal rods makes the upper push rods on the left and right sides closer together and the upper parts of the lower push rods on the left and right sides are closer together. closer together.

The utility model also provides another technical solution: a foldable children's stroller, which includes a foldable and openable frame, a wheel connected to the bottom of the frame, a seat pocket installed on the frame, and the frame is locked to open. State of the frame locking device. The frame has the push rod assembly described above.

Due to the adoption of the above technical solutions, the push rod assembly of the folding stroller and the folding stroller of the present invention unlock the locking device in the push rod assembly during the folding process of the push rod assembly, which simplifies the operation steps of the overall folding of the stroller. In addition, the size of the push rod assembly in the left and right directions is reduced when the push rod assembly is folded, so that the size of the stroller in the left and right directions is reduced after the whole folded, which simplifies the overall structure of the children's stroller.

Description of drawings

1 is a schematic front view of the push rod assembly and the folding stroller in the present invention, wherein the push rod assembly is in an open state, and the folding stroller is opened as a whole;

Accompanying drawing 2 is the side view structure schematic diagram of accompanying drawing 1;

3 is a schematic front view of the push rod assembly and the foldable stroller in the utility model, wherein the push rod assembly is in a semi-folded state, and other components of the foldable stroller frame are not folded;

Accompanying drawing 4 is the side view structure schematic diagram of accompanying drawing 3;

5 is a schematic front view of the push rod assembly and the folding stroller in the present invention, wherein the push rod assembly is in a folded state, and other components of the folding stroller frame are not folded;

Accompanying drawing 6 is the side view structure schematic diagram of accompanying drawing 5;

7 is a schematic front view of the push rod assembly and the folding stroller in the utility model, wherein the push rod assembly is in a folded state, and the folding stroller is folded as a whole;

Accompanying drawing 8 is the side view structure schematic diagram of accompanying drawing 7;

FIG. 9 is a schematic structural diagram of the locking device in the push rod assembly of the present invention, that is, a schematic cross-sectional structure diagram of A-A in FIG. 1 (the structures of the locking devices on the left and right sides are symmetrical).

The symbols in the figure are:

1. Push rod assembly; 11, Upper push rod; 12, Lower push rod; 121, Lock hole; 13, Cross rod; 14, Lock tongue; 141, Inclined surface; 2, Joint; 3, Front bracket; 4, Rear bracket ; 5, seat post; 6, front wheel; 7, rear wheel; 8, cross brace.

Detailed ways

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.

It can be seen from the structural schematic diagrams of FIG. 1 to FIG. 9 that the push rod assembly of the folding stroller in this embodiment includes two side push rod assemblies 1 symmetrically arranged on the left and right sides of the folding stroller.

Each side push rod assembly 1 includes a cross rod 13, an upper push rod 11 connected to the cross rod 13 at the upper part, a lower push rod 12 relatively pivotally connected to the upper push rod 11, and the upper push rod 11 and the lower push rod 12 has a relative unfolding position, a first relative position, and a relative retracting position. The relative unfolding position and the first relative position are switched by the relative pivoting of the upper push rod 11 and the lower push rod 12. The upper push rod 11 and the lower push rod A locking device is arranged between the rods 12 to lock the two in the relative deployment position. The locking device is unlocked by pivoting between the upper push rod 11 and the lower push rod 12, and when the locking device is unlocked, the first relative position It can be switched between the relative collapsed position. The transverse rods 13 in the two side push rod assemblies 1 are rotatably connected to each other. In a more specific connection structure, one end of the two transverse rods 13 is rotatably connected to each other, and the other end of each transverse rod 13 is connected to the other side. The upper end of the upper push rod 21 in the side push rod assembly 1 is fixedly connected.

The push rod assembly has an open state and a folded state. When it is in the open state, the two transverse rods 13 are relatively unfolded, the upper push rod 11 and the lower push rod 12 are in a relative unfolded position, and the locking device is in a locked state; when During the transition of the push handle assembly from the open state to the folded state, the two horizontal bars 13 are relatively close to each other. Both the upper push rod 11 and the lower push rod 12 in the rod assembly 1 are switched to the first relative position, so that the locking device is in the unlocked state; when the push rod assembly is in the folded state, the two transverse rods 13 are kept relatively close to each other , the upper push rod 11 and the lower push rod 12 are in a relative retracted position.

In a more preferred embodiment, the upper push rod 11 and the lower push rod 12 are connected in a relatively movable manner in addition to being relatively pivotable. Specifically, when the upper push rod 11 and the lower push rod 12 are connected When in the relative unfolding position and the first relative position, the upper push rod 11 and the lower push rod 12 are relatively extended. When the upper push rod 11 and the lower push rod 12 are in the relative retracted position, the upper push rod 11 and the lower The push rods 12 are relatively retracted. In a more specific connection structure, the lower part of the upper push rod 11 is movably inserted into it from the upper end of the lower push rod 12 from top to bottom.

The above-mentioned locking device is used to limit the relative movement relationship between the upper push rod 11 and the lower push rod 12, that is, when the locking device is in the locked state, the relative movement relationship between the upper push rod 11 and the lower push rod 12 is limited , when the locking device is in the unlocked state, the upper push rod 11 and the lower push rod 12 can move relative to each other. The above-mentioned relative retracted position and the first relative position are switched by the relative movement of the upper push rod 11 and the lower push rod 12 .

This embodiment provides a specific structure of a locking device, which includes a locking hole 121 formed on the lower push rod 12, a lock slidably connected to the upper push rod 11 and detachably inserted into the locking hole 121 Tongue 14, an elastic piece capable of inserting the lock tongue 14 into the lock hole 121 (not shown in the drawings, the elastic piece is preferably a compression spring), the lock tongue 14 has a sliding contact with the edge of the lock hole 121 to make the lock tongue 14 disengage from the lock The slope 141 of the hole 121 . More specifically, the inclined surface 141 is parallel to the relative pivot axis between the upper push rod 11 and the lower push rod 12 .

In a more preferred embodiment, when the push rod assembly is in the open state, the upper push rod 11 and the lower push rod 12 on the left side of the folding stroller are inclined to the left rear from bottom to top, and are located on the left side of the folding stroller. Both the upper push rod 11 and the lower push rod 12 on the right side of the stroller are inclined to the right and rear from bottom to top. Compared with the open state of the push rod assembly, the distance between the bottom ends of the lower push rods 12 on the left and right sides remains unchanged, and the upper push rods 11 on the left and right sides are closer together. Specifically, during the transition of the push rod assembly from the open state to the folded state, the two transverse rods 13 are relatively close to each other so that the upper push rods 11 (and the lower push rods 12 ) on the left and right sides are closer together. In this embodiment, when the push rod assembly is in the folded state, the lower push rods 12 on the left and right sides are parallel to each other, and the upper push rods 11 on the left and right sides are parallel to each other, so that the push rod assembly is in the process of folding In the middle, the lower push rod 12 (and the upper push rod 11 ) change the angle slightly in the left-right direction. It should be noted that when the bottom end of the lower push rod 12 is rotatably connected with other components of the folding stroller, there is a certain gap between the bottom end of the lower push rod 12 and the component at the rotational connection. When the push rod assembly is in the open state, the inclination angle of the upper push rod 11 and the lower push rod 12 on the left and right sides in the left and right directions is relatively small. When the lower push rods 12 are rotated to approach each other, the left and right upper push rods 11 and the lower push rods 12 can be made parallel to each other without changing the distance between the bottom ends of the left and right lower push rods 12 .

The working principle of the push rod assembly:

When the push rod assembly is folded, firstly push forward the rotational joints of the left and right crossbars 13, so that when the rotational joints move forward, the two crossbars 13 rotate relative to each other and approach each other. The rotation between the rods 13 drives the upper push rod 11 and the lower push rod 12 on the left and right sides to be parallel to each other, and the rotation between the two cross rods 13 drives the upper push rod 11 and the lower push rod on the left and right sides. 12, so that the upper push rod 11 and the lower push rod 12 are switched from the relative unfolded position to the first relative position. During the relative pivoting between the upper push rod 11 and the lower push rod 12, the lock tongue The inclined surface 141 of 14 is in sliding contact with the edge of the lock hole 121, thereby pushing the lock tongue 14 to overcome the force of the elastic member to move and exit the lock hole 121, so that the locking device is unlocked. After the locking device is unlocked, the upper push rod 11 and the lower push rod 12 They can move relatively between them. At this time, the upper push rod 11 (or the horizontal rod 13 ) is pressed down, so that the downward movement is retracted into the lower push rod 12 , so that the folding of the push rod assembly is completed.

This embodiment also provides a folding stroller, including a foldable and openable frame, a wheel connected to the bottom of the frame, a seat pocket mounted on the frame, and a frame locking device for locking the frame in an open state . The frame has the push rod assembly described above.

Regarding the structure of the vehicle frame, any applicable structure in the prior art can be adopted for the other components except the push rod assembly. This embodiment provides a specific structure, which, in addition to the push rod assembly, also includes a bottom connected to the front wheel 6 . The front bracket 3, the rear bracket 4 connected with the rear wheel 7 at the bottom, the front bracket 3 and the rear bracket 4 each have two and are respectively arranged on the left and right sides of the frame, the front bracket 3, the rear bracket 4, the side The push rod assemblies 1 are respectively connected by joints 2 for coaxial rotation, and a transverse strut 8 is connected between the joints 2 on the left and right sides. The vehicle frame further includes a seat post 5 , and the left and right ends of the seat post 5 are also rotatably connected to the front bracket 3 , the rear bracket 4 , and the side push rod assembly 1 through the joint 2 on the same axis.

When the frame is opened, the push rod assembly is in an open state, and the rest of the components are relatively unfolded. When the frame is folded, the push rod assembly is in a folded state, and the rest of the components are relatively close to each other.

The push rod assembly of the folding children's stroller and the folding children's stroller of the utility model unlock the locking device in the push rod assembly during the folding process of the push rod assembly, which simplifies the operation steps of the overall folding of the stroller, and can be folded through the push rod assembly. The size reduction in the left and right directions realizes the reduction of the size in the left and right directions after the overall folding of the stroller, which simplifies the overall structure of the children's stroller.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and the purpose thereof is to enable those who are familiar with the technology to understand the content of the present invention and implement accordingly, and cannot limit the protection scope of the present invention with this. All equivalent changes or modifications made according to the spirit of the present invention shall be included within the protection scope of the present invention.

Claims (9)

1. The utility model provides a push rod assembly of folding children's shallow, is in including setting up symmetrically two side push rod assemblies (1) of the folding children's shallow left and right sides, its characterized in that: each side push rod component (1) comprises a cross rod (13), an upper push rod (11) with the upper part connected with the cross rod (13), and a lower push rod (12) connected with the upper push rod (11) in a relatively pivoting manner, wherein a relatively unfolded position and a first relative position which are switched through the relative pivoting of the upper push rod (11) and the lower push rod (12) are arranged between the upper push rod (11) and the lower push rod (12), a locking device for locking the upper push rod (11) and the lower push rod (12) at the relatively unfolded position is arranged between the upper push rod (11) and the lower push rod (12), and the locking device is unlocked through the pivoting between the upper push rod (11) and the lower push rod (12) and enables the upper push rod and the lower push rod to be switched from the first relative position; the cross rods (13) in the two side push rod assemblies (1) are mutually connected in a rotating way;

the push rod assembly has an opening state and a folding state, when the push rod assembly is in the opening state, the two cross rods (13) are oppositely unfolded, the upper push rod (11) and the lower push rod (12) are in a relatively unfolded position, and the locking device is in a locking state; in the process that the push rod assemblies are in transition from the opening state to the folding state, the two cross rods (13) are relatively close to each other, and the upper push rod (11) and the lower push rod (12) in the two side push rod assemblies (1) are switched to a first relative position, so that the locking device is in an unlocking state; when the push rod assembly is in a folded state, the two cross rods (13) are kept relatively close to each other, and the upper push rod (11) and the lower push rod (12) are in a relatively folded position.

2. The pusher bar assembly of a folding stroller of claim 1, wherein: the upper push rod (11) and the lower push rod (12) are connected in a relatively movable mode, the relatively folded position and the first relative position are switched through the relative movement of the upper push rod (11) and the lower push rod (12), when the upper push rod (11) and the lower push rod (12) are located at the relatively unfolded position and the first relative position, the upper push rod (11) and the lower push rod (12) extend out relatively, and when the upper push rod (11) and the lower push rod (12) are located at the relatively folded position, the upper push rod (11) and the lower push rod (12) retract relatively.

3. The pusher bar assembly of a folding stroller of claim 1, wherein: when the push rod assembly is in the process of transition from the opening state to the folding state, the two cross rods (13) are rotationally protruded out of a plane formed by the two upper push rods (11).

4. The pusher bar assembly of a folding stroller of claim 1, wherein: the locking device comprises a lock hole (121) formed in the lower push rod (12), a lock tongue (14) which is connected to the upper push rod (11) in a sliding mode and can be detachably inserted into the lock hole (121), and an elastic piece which enables the lock tongue (14) to be inserted into the lock hole (121), wherein the lock tongue (14) is provided with an inclined surface (141) which can be in sliding contact with the edge of the lock hole (121) to enable the lock tongue (14) to be separated from the lock hole (121).

5. The pusher bar assembly of a folding stroller of claim 4, wherein: the inclined surface (141) is parallel to the axial lead of the relative pivot between the upper push rod (11) and the lower push rod (12).

6. The pusher bar assembly of a folding stroller of claim 1, wherein: when the push rod assembly is in an opening state, the upper push rod (11) and the lower push rod (12) which are positioned on the left side of the folding stroller incline towards the left rear from bottom to top, and the upper push rod (11) and the lower push rod (12) which are positioned on the right side of the folding stroller incline towards the right rear from bottom to top.

7. The pusher bar assembly of a folding stroller of claim 1, wherein: compared with the folded state of the push rod assembly, the distance between the bottom ends of the lower push rods (12) on the left side and the right side is unchanged, and the upper push rods (11) on the left side and the right side are closer.

8. The pusher bar assembly of a folding stroller of claim 7, wherein: in the process that the push rod assemblies are in transition from the opening state to the folding state, the two cross rods (13) are relatively close to each other, so that the upper push rods (11) on the left side and the right side are closer to each other, and the upper portions of the lower push rods (12) on the left side and the right side are closer to each other.

9. The utility model provides a folding children's shallow, is including collapsible and open frame, connect in frame bottom wheel, install seat pocket on the frame, with the frame locking device of frame locking at open condition which characterized in that: the vehicle frame having a push rod assembly as claimed in any one of claims 1 to 8.

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