CN215904571U

CN215904571U - Reversing cart

Info

Publication number: CN215904571U
Application number: CN202120851322.2U
Authority: CN
Inventors: 贺新军; 王波
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2021-02-09
Filing date: 2021-04-23
Publication date: 2022-02-25
Anticipated expiration: 2031-04-23
Also published as: CN113276931A

Abstract

The utility model discloses a reversing cart, wherein a cart frame of the reversing cart comprises a push handle rod, an upper support and a lower support, the upper support comprises a seat and a connecting piece, and the seat is provided with a seat surface. The lower end of the push handle rod is connected with the seat in a rotating way around a first rotating center line, and the first rotating center line is positioned above the seat surface. The lower support comprises a side support and a transverse support, the connecting piece is rotatably connected with the transverse support through a central shaft, and the first rotating center line is positioned above the entity of the central shaft. The side support comprises a front wheel support and a rear wheel support, the front wheel support on the same side is rotatably connected with the rear wheel support around a second rotation center line, and the first rotation center line is positioned above the second rotation center line. This switching-over shallow can realize just pushing away with the reverse push, pushes away the barre and connects on the seat, and during the seat switching-over, it can regard as a whole relative lower carriage rotation to push away the barre and the upper bracket, need not remove children outside the seat, and is easy and simple to handle.

Description

Reversing cart

Technical Field

The utility model relates to the technical field of children products, in particular to a reversing cart.

Background

In the prior art, some child strollers are reversible, having a forward pushing state in which the child is facing away from the stroller and a reverse pushing state in which the child is facing the stroller, the upper frame being rotatable about a vertical axis relative to the lower frame to switch between the forward pushing state and the reverse pushing state. At present, most of reversing trolleys need to be moved out of the trolley by children when needing to be switched between a forward pushing state and a backward pushing state, so that the state can be switched, and the operation is very inconvenient.

Disclosure of Invention

The utility model aims to provide an improved reversing cart aiming at the defects in the prior art.

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

a reversing cart comprises a frame with an unfolding state and a folding state, wherein the frame comprises a push handle rod, an upper support and a lower support, the upper support comprises a seat and a connecting piece in the unfolding state, the seat is provided with a seat surface for supporting children, and the connecting piece is fixedly arranged at the bottom of the seat; the lower end part of the push handle rod is rotatably connected with the seat around a first rotation center line, the first rotation center line extends along the left-right direction of the frame, and the first rotation center line is positioned above the seat surface; the lower support comprises side supports positioned on the left side and the right side and a transverse support used for connecting the side supports on the two sides, the connecting piece is rotatably connected with the transverse support through a central shaft, the shaft axis of the central shaft extends along the height direction of the frame, and the first rotating center line is positioned above the entity of the central shaft; the side support at least comprises a front wheel support and a rear wheel support, the front wheel support on the same side is rotatably connected with the rear wheel support around a second rotation center line, the second rotation center line extends along the left-right direction of the frame, and the first rotation center line is positioned above the second rotation center line.

Preferably, a horizontal plane in which the second rotation center line is located intersects with an entity of the central shaft.

Preferably, the second centerline of rotation intersects the solid of the central shaft.

Preferably, the second rotation center line perpendicularly intersects with the axis line of the central shaft.

Preferably, the seating surface extends gradually obliquely downward from front to rear in the front-rear direction of the seat.

Preferably, the seat comprises a sitting portion, the seat surface is arranged on the sitting portion, two side armrests are arranged on the left side and the right side of the sitting portion, and the lower end portion of the push handle rod is rotatably connected to the side armrests.

Preferably, the seat includes a sitting portion, a backrest rod and a leg support, the push rod is rotatably connected to the sitting portion around a first rotation center line, the backrest rod is rotatably connected to the sitting portion around a third rotation center line, the leg support is rotatably connected to the sitting portion around a fourth rotation center line, the first rotation center line, the third rotation center line and the fourth rotation center line are parallel to each other, and in a front-back direction of the sitting portion, the first rotation center line is located between the third rotation center line and the fourth rotation center line.

Preferably, the cross brace has a projection in a horizontal plane, and the projection of the connecting element in the horizontal plane is entirely within the projection of the cross brace.

Further preferably, the projection of the connecting member in the horizontal plane is circular.

Preferably, the reversing cart further comprises a locking device, the locking device is arranged between the push handle rod and the upper support, and the locking device is arranged between the upper support and the lower support; when the locking device is in a locking state, the reversing cart has a reverse pushing state that the seat faces the push handle rod and a forward pushing state that the seat backs on the push handle rod; when the locking device is in an unlocked state, the upper bracket rotates relative to the lower bracket by taking the central shaft as a rotating shaft, and the push handle rod rotates relative to the seat around the first rotating center line, so that the upper part of the push handle rod swings in the front-back direction relative to the seat, and the reversing cart is switched between the reverse pushing state and the forward pushing state.

Due to the application of the technical scheme, the push handle rod of the reversing cart is connected to the seat, the upper support is integrally higher than the lower support, when the reversing cart reverses the seat, the push handle rod and the upper support can rotate relative to the lower support as a whole without interference, a child does not need to be moved out of the seat, and the operation is simple and convenient.

Drawings

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

Fig. 1 is a schematic perspective view of a reversing cart according to a specific embodiment of the present invention in a forward pushing state;

fig. 2 is a schematic side view of the reversing cart in the forward pushing state in the present embodiment;

fig. 3 is a schematic front view of the reversing cart in the forward pushing state in this embodiment;

fig. 4 is a schematic perspective view of the reversing cart in this embodiment, which is exploded;

FIG. 5 is a side view of the reversing cart in this embodiment shown in exploded form;

FIG. 6 is a schematic perspective view of the reversing cart of this embodiment with the push handle bar in rotation;

fig. 7 is a schematic perspective view of the reversing cart in this embodiment, with the upper bracket in rotation;

FIG. 8 is a schematic perspective view of the reversing cart of this embodiment with the push handle bar in rotation;

fig. 9 is a schematic perspective view of the reversing cart in the reverse-pushing state in this embodiment;

wherein: 100. a handle pushing rod; 110. a rotating part;

200. an upper bracket; 210. a connecting member; 220. a seat; 221. a sitting portion; 222. a side arm rest; 223. a connecting portion; 224. a grab rail; 225. a back rest rod; 226. a leg rest;

300. a lower bracket; 310. a front wheel bracket; 320. A rear wheel support; 330. a transverse bracket;

400. a wheel assembly; 410. a front wheel assembly; 420. a rear wheel assembly;

500. a central shaft;

1. a first rotational centerline; 2. a third center of rotation; 3. a fourth centerline of rotation; 4. a second center of rotation; 5. the axis of the central shaft.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the utility model may be more readily understood by those skilled in the art.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "left-right", "height", "front-back direction", etc. indicate the orientation or positional relationship shown when the handle bar 100 is held by the adult of the stroller based on fig. 1, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, only a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. Further, the description of the upper, lower, left, right, etc. used in the present invention is only with respect to the positional relationship of the respective components of the present invention with respect to each other in the drawings.

Referring to fig. 1 to 5, a reversing cart includes a frame having an unfolded state and a folded state, the frame includes a push handle bar 100, an upper bracket 200, a lower bracket 300, and a wheel assembly 400, the push handle bar 100 is rotatably connected to the upper bracket 200 around a first rotation center line 1, and the upper bracket 200 is rotatably connected to the lower bracket 300 through a center shaft 500. Specifically, in the deployed state:

the upper frame 200 includes a connecting member 210 and a seat 220, the connecting member 210 is fixedly disposed at the bottom of the seat 220, the push handle bar 100 is rotatably connected to the seat 220 about a first rotation center line 1, the connecting member 210 is rotatably connected to a horizontal frame 330 of the lower frame 300 through a central shaft 500, and an axis 5 of the central shaft 500 extends along the height direction of the bicycle frame. In general, the convertible stroller has a member for directly supporting a child, such as a seat pocket, a sleeping bag, or a cradle, which is collectively referred to as a seat 220 in the present embodiment, and the orientation of the child when seated in the seat 220 is referred to as the orientation of the seat 220. The seat 220 is directly or indirectly connected to the link 210, or the link 210 is a part of the seat 220, and the seat 220 can be rotated about the central axis 500 as a unit with the link 210. In this embodiment, the seat 220 specifically includes a sitting portion 221, a grab bar 224, a back rest bar 225, and a leg rest 226. The sitting part 221 has a seat surface for supporting the body of the child, and a plane d where the seat surface is located gradually inclines downwards and extends from front to back; the left and right sides of the sitting portion 221 are provided with two side armrests 222, the side armrests 222 extend upwards from the left and right sides of the seat surface, and the outer sides of the side armrests 222 are provided with connecting portions 223 for connecting the push handle bar 100; the grab bar 224 is rotationally connected with the side grab 222 around the first rotation center line 1; the back rest lever 225 is rotatably connected to the rear portion of the side arm rest 222 about the third rotation center line 2; the leg rest 226 is rotatably connected to the front portion of the sitting portion 221 about the fourth rotation center line 3. The first rotation center line 1, the third rotation center line 2 and the fourth rotation center line 3 are parallel to each other, extend along the left-right direction of the frame, and the first rotation center line 1 is located between the third rotation center line 2 and the fourth rotation center line 3 in the front-back direction of the sitting portion 221.

The push handle rods 100 arranged on the left side and the right side can be telescopic or foldable, the positions for holding can also be arranged commonly used in the field, and the utility model is not limited. In the embodiment, the handle bar 100 includes an upper push rod and a lower push rod which are connected telescopically, and the upper ends of the handle bars 100 on both sides are connected through the handrail. The lower ends of the push handle bars 100 on both sides have rotating parts 110, respectively, and the rotating parts 110 are rotatably connected to the connecting part 223 around the first rotation center line 1. In the present embodiment, the first rotation center line 1 is located above the seat surface entity in the height direction of the vehicle frame, that is, the installation position of the rotation axis entity of the rotation part 110 and the connection part 223 is higher than the seat surface.

The lower frame 300 includes side frames at left and right sides, and a cross frame 330 extending in left and right directions and connecting the side frames, the side frames specifically include a front wheel frame 310 and a rear wheel frame 320, and the wheel assembly 400 includes a front wheel assembly 410 disposed at the bottom of the front wheel frame 310 and a rear wheel assembly 420 disposed at the bottom of the rear wheel frame 320. In this embodiment, the connecting member 210 is a flat cylinder, one end of the central shaft 500 is fixed to the lower portion of the connecting member 210, the first rotation center line 1 is located above the solid of the central shaft 500, and the central shaft 500 and the axis of the connecting member 210 are arranged in a collinear manner. The cross bracket 330 has a projection in the horizontal plane, and the projection of the connecting member 210 in the horizontal plane is circular and is completely located in the projection of the cross bracket 330, that is, the width of the cross bracket 330 in the front-back direction is not less than the outer diameter of the connecting member 210, so that when the upper bracket 200 rotates relative to the lower bracket 300, the cross bracket 330 can be always supported below the connecting member 210, a larger and stable supporting surface is provided for the upper bracket 200, and the structural strength of the vehicle frame is increased.

The upper end of the front wheel bracket 310 is rotatably connected with the upper end of the rear wheel bracket 320 around a second rotation center line 4. in this embodiment, the two ends of the transverse bracket 330, the upper end of the rear wheel bracket 320 and the upper end of the front wheel bracket 310 are sequentially arranged from inside to outside and are rotatably connected around the second rotation center line 4 in a collinear manner, the second rotation center line 4 is arranged in parallel with the first rotation center line 1, the first rotation center line 1 is positioned above the second rotation center line 4, the horizontal plane of the second rotation center line 4 is intersected with the entity of the central shaft 500, and further, the second rotation center line 4 is intersected with the entity of the central shaft 500. The whole structure of the frame of the baby stroller is more compact, and the center of gravity is stable.

In this embodiment, the push handle bar 100 and the upper bracket 200 are generally located above the lower bracket 300 except for the leg rest 226, and the upper bracket 200 is rotatably connected to the lower bracket 300 about the central axis 500, so that the push handle bar 100 and the upper bracket 200 can rotate as a whole about the central axis 500 in a horizontal plane with respect to the lower bracket 300. Referring to fig. 6 to 9, when the upper bracket 200 is rotated about the central shaft 500, the leg rest 226 is only slightly rotated upward to be lifted without moving the child out of the seat 220, and the rotation is performed without hindrance, which greatly facilitates the operation.

The upper bracket 200 can freely rotate 180 degrees around the central shaft 500 from the forward position to the reverse position; correspondingly, the reversing cart has at least two use states, in the present embodiment, the two use states are a forward pushing state and a reverse pushing state respectively: when the reversing cart is in a forward pushing state as shown in fig. 1, the seat 220 faces forward and back to the push handle bar 100, the back rod 225 of the seat 220 is inclined backward, the grab bar 224 is forward, and the upper bracket 200 is in a forward position; when the reverse cart is in a reverse state as shown in fig. 9, the seat 220 is oriented rearward and faces the push handle bar 100, the back rest bar 225 of the seat 220 is inclined forward, the grab bar 224 is oriented rearward, and the upper bracket 200 is located at a reverse position; the fore-aft direction of the reversing cart is referenced to the arrangement of the front wheel assembly 410 and the rear wheel assembly 420.

The directions of the reversing cart such as left, right, height, front and back and the like in the utility model refer to the left, right, height and front and back directions of the reversing cart when the reversing cart is in a forward pushing state (shown in figure 1) or a reverse pushing state (shown in figure 9); the vertical and horizontal directions refer to the vertical and horizontal positions (as shown in fig. 1 and 9) when the reversing cart in the forward pushing state or the backward pushing state is placed on the horizontal ground, so as to facilitate the description of the present invention.

At least two locking devices are arranged between the push handle rod 100, the upper bracket 200 and the lower bracket 300 of the reversing cart. In this embodiment, the locking device includes a first locking device for locking the handle bar 100 with respect to the upper bracket 200, and a second locking device for locking the upper bracket 200 with respect to the lower bracket 300, and the first locking device and the second locking device can be unlocked and locked in linkage. The first locking means is provided between the rotating part 110 of the push stick lever 100 and the connecting part 223 of the seat 220; the second locking means is provided between the connector and the cross bracket 330. The specific structure of the locking device can adopt the prior art, and the utility model is not limited.

Referring to fig. 6 to 9, when the reversing cart needs to be switched from the forward pushing state to the backward pushing state, the first locking device is unlocked, the push handle bar 100 is driven to rotate forward around the first rotation center line 1 relative to the seat 220, and the second locking device is linked to unlock, so that the push handle bar 100 and the upper bracket 200 as a whole can rotate around the central shaft 500 in a horizontal plane; when the push handle bar 100 and the upper bracket 200 rotate 180 degrees around the central shaft 500 to the position shown in fig. 8, the push handle bar 100 rotates backwards around the first rotation center line 1 relative to the seat 220 until the first locking device is unlocked and the second locking device is locked, and then the reversing cart is switched to the reverse pushing state shown in fig. 9.

When the reversing cart needs to be switched from the reverse pushing state to the forward pushing state, the above steps are operated in the reverse direction, and are not described herein again.

In addition, each support homoenergetic of the switching-over shallow in this embodiment can fold each other and draw in, and the frame volume under fold condition reduces, portable and accomodate. The folding structure of the frame can adopt the prior art, and the utility model is not limited.

The switching-over shallow of this embodiment can realize just pushing away with the backstepping as required, and just the in-process of the conversion of just pushing away state and backstepping state need not to shift out seat 220 with children, and is easy and simple to handle.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to 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 within the protection scope of the present invention.

Claims

1. The utility model provides a switching-over shallow, is including having the frame of expansion state and fold condition, the frame is including pushing away handlebar pole, upper bracket, lower carriage, its characterized in that: in the unfolded state of the mattress, the back cover is opened,

the upper bracket comprises a seat and a connecting piece, the seat is provided with a seat surface for supporting children, and the connecting piece is fixedly arranged at the bottom of the seat;

the lower end part of the push handle rod is rotatably connected with the seat around a first rotation center line, the first rotation center line extends along the left-right direction of the frame, and the first rotation center line is positioned above the seat surface;

the lower support comprises side supports positioned on the left side and the right side and a transverse support used for connecting the side supports on the two sides, the connecting piece is rotatably connected with the transverse support through a central shaft, the shaft axis of the central shaft extends along the height direction of the frame, and the first rotating center line is positioned above the entity of the central shaft;

the side support at least comprises a front wheel support and a rear wheel support, the front wheel support on the same side is rotatably connected with the rear wheel support around a second rotation center line, the second rotation center line extends along the left-right direction of the frame, and the first rotation center line is positioned above the second rotation center line.

2. The reversing cart of claim 1, wherein: the horizontal plane where the second rotation center line is located intersects with the entity of the central shaft.

3. The reversing cart of claim 1, wherein: the second centerline of rotation intersects the solid of the central axis.

4. The reversing cart of claim 1, wherein: the second rotation center line is perpendicularly intersected with the axis of the central shaft.

5. The reversing cart of claim 1, wherein: the seating surface extends obliquely downward from front to rear in the front-rear direction of the seat.

6. The reversing cart of claim 1, wherein: the seat comprises a sitting part, the seat surface is arranged on the sitting part, the left side and the right side of the sitting part are provided with two side armrests, and the lower end part of the push handle rod is rotationally connected to the side armrests.

7. The reversing cart of claim 1, wherein: the seat is including sitting upright portion, back pole and leg support, push away the handlebar stem around first rotation axis with sit upright portion and rotate and be connected, the back pole around third rotation axis with sit upright portion and rotate and be connected, the leg support around fourth rotation axis with sit upright portion and rotate and be connected, first rotation axis third rotation axis reaches fourth rotation axis is parallel to each other, and in the fore-and-aft direction of sitting upright portion, first rotation axis is located third rotation axis with between the fourth rotation axis.

8. The reversing cart of claim 1, wherein: the transverse support is provided with a projection in a horizontal plane, and the projection of the connecting piece in the horizontal plane is completely positioned in the projection of the transverse support.

9. The reversing cart of claim 8, wherein: the projection of the connecting piece in the horizontal plane is circular.

10. The reversing cart according to any one of claims 1 to 9, wherein: the reversing cart further comprises a locking device, the locking device is arranged between the push handle rod and the upper support, and the locking device is arranged between the upper support and the lower support; when the locking device is in a locking state, the reversing cart has a reverse pushing state that the seat faces the push handle rod and a forward pushing state that the seat backs on the push handle rod; when the locking device is in an unlocked state, the upper bracket rotates relative to the lower bracket by taking the central shaft as a rotating shaft, and the push handle rod rotates relative to the seat around the first rotating center line, so that the upper part of the push handle rod swings in the front-back direction relative to the seat, and the reversing cart is switched between the reverse pushing state and the forward pushing state.