CN103895680B - A kind of child umbrella handle vehicle - Google Patents

Abstract

The invention discloses a children's umbrella handle car. The frame includes side brackets located on both sides and a bottom brace assembly connected between the side brackets on both sides and capable of stretching along the front and rear directions of the frame. The bottom brace assembly includes mutual The first bottom brace and the second bottom brace that cross and are pivotally connected at the intersection, the first link that is pivotally connected to the front of the first bottom brace at the rear, and the second bottom brace that is connected at the rear The pivotally connected second link drives the first link and the second link to rotate through the relative rotation of the first bottom brace and the second bottom brace, so that the lower part of the front bracket and the lower part of the rear bracket move closer to each other Or away from, and simultaneously drive the rear brackets on both sides to move away from and draw in correspondingly, so that the folding and unfolding of the umbrella handle car are all very convenient. The structure of the bottom strut assembly reduces the dimensional limitation between the width of the vehicle frame in the left-right direction and the length in the front-rear direction, thereby facilitating the design of the umbrella handlebar, and at the same time making the design and installation of the bottom strut assembly more convenient.

Description

A kind of umbrella handle car for children

technical field

The invention relates to a children's umbrella handle car.

Background technique

In the prior art, children's umbrella handle cars usually include a foldable frame, and a bottom brace assembly is provided between the front bracket and the rear bracket of the frame. The connecting rods hinged at each other, the front parts of the two connecting rods are respectively rotatably connected with the lower parts of the front brackets on both sides, and the rear parts of the two connecting rods are respectively rotatably connected with the lower parts of the rear brackets on both sides. The connecting rods rotate mutually so that the front bracket and the rear bracket move closer to or separate from each other, so as to realize the folding and unfolding of the umbrella handle car along the front and rear directions. With such a structure, the movement stroke between the front bracket and the rear bracket is limited to a certain extent, and its movement stroke usually corresponds to the movement stroke between the side brackets on both sides of the frame, which also affects to a certain extent The unfolded state and folding method of the umbrella handle also affect the size design of the umbrella handle.

Contents of the invention

The purpose of the present invention is to overcome the shortcomings of the prior art and provide a children's umbrella handle car with a novel bottom brace structure.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A children's umbrella handle car, comprising a vehicle frame in an unfolded state, a front wheel assembly located at the bottom front of the vehicle frame, a rear wheel assembly located at the bottom rear of the vehicle frame, and used to place the vehicle frame A locking mechanism that is locked in an unfolded state, the vehicle frame includes side brackets respectively located on both sides, and a bottom brace assembly connected between the side brackets on both sides and capable of stretching along the front and rear directions of the vehicle frame, so The side brackets at least include a front bracket and a rear bracket, and the bottom brace assembly includes a first bottom brace and a second bottom brace that intersect each other and are pivotally connected at the intersection, and the rear part is connected to the first bottom brace a first link pivotally connected to the front of the rod, a second link pivotally connected to the front of the second bottom brace at the rear, and a front of the first link to the first The front parts of the two connecting rods are pivotally connected and rotatably connected to the lower part of the front bracket, the rear part of the first bottom brace is rotatably connected to one side of the rear bracket, and the second The rear portion of the bottom brace is rotatably connected to the rear support on the other side.

Preferably, the front parts of the first connecting rod and the second connecting rod are connected to the lower part of the front bracket through an adapter device.

Further preferably, the switching device includes a positioning piece connected to the front bracket, and a rotating piece rotatably connected to the positioning piece.

Still further preferably, the positioning member is connected to the rotating member through a first rotating shaft, and the rotating member is rotationally connected to the front parts of the first connecting rod and the second connecting rod through a second rotating shaft, so The extension directions of the axis lines of the first rotating shaft and the second rotating shaft are different.

As a specific implementation manner, the positioning member is fixed on the front support by welding or screws.

Preferably, the lower parts of the front brackets on both sides are rotatably connected through a rotating shaft.

Further preferably, the front brackets on both sides are arc-shaped rods whose front parts are bent toward the middle of the frame along the left-right direction of the frame.

Further preferably, when the umbrella handle is folded, the front brackets on both sides move closer around the rotation axis.

Further preferably, the front wheel assembly is mounted on the bottom front portion of the front bracket on one side.

Preferably, the side brackets on each side further include a push rod and a seat post, the lower part of the push rod is rotatably connected to the upper part of the front bracket, and the upper part of the rear bracket is rotatably connected to the push rod , the front part of the seat post is rotatably connected to the front bracket and the rear part of the seat post is rotatably connected to the rear bracket, and the vehicle frame also includes and a rear strut assembly that can be folded along the left and right directions of the vehicle frame.

Due to the application of the above-mentioned technical solutions, the present invention has the following advantages compared with the prior art: In the children's umbrella handle car of the present invention, the vehicle frame includes side brackets on both sides and a The telescopic bottom strut assembly in the front and back direction drives the first connecting rod and the second connecting rod to rotate through the relative rotation of the first bottom strut and the second bottom strut on the bottom strut assembly, so that the lower part of the front bracket is aligned with the The lower parts of the rear brackets move closer or farther away from each other, and at the same time drive the rear brackets on both sides to move away from each other and draw in correspondingly, so that the folding and unfolding of the umbrella handle car are all very convenient. The structure of the bottom strut assembly reduces the dimensional limitation between the width of the vehicle frame in the left-right direction and the length in the front-rear direction, thereby facilitating the design of the umbrella handlebar, and at the same time making the design and installation of the bottom strut assembly more convenient.

Description of drawings

Accompanying drawing 1 is the perspective view when children's umbrella handle car is in the unfolded position among the present invention;

Accompanying drawing 2 is the side view when children's umbrella handle car is in the unfolded position among the present invention;

Accompanying drawing 3 is the side view when children's umbrella handle car is in the folded position among the present invention;

Among them: 1. Side bracket; 11. Front bracket; 12. Push rod; 13. Rear bracket; 14. Seatpost; 15. Rotation shaft; 2. Rear brace assembly; 3. Bottom brace assembly; Strut; 32, second strut; 33, first connecting rod; 34, second connecting rod; 4, front wheel; 5, rear wheel; 6, transfer device; 61, positioning member; 62, rotating member; 63, the first rotating shaft; 64, the second rotating shaft.

detailed description

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments of the present invention.

The following definitions of directions are all defined according to the front, rear, left and right, and up and down directions observed by the user when the children's umbrella handle car is in use. The left and right directions, where the left is the front, the right is the back, and the up and down directions are the up and down directions in Figure 1 and Figure 2.

Referring to the children's umbrella handle car shown in Figures 1-3, it includes a vehicle frame with an unfolded position and a folded position, a front wheel assembly 4 located at the bottom front of the vehicle frame, and a rear wheel assembly 5 located at the bottom rear of the vehicle frame . The vehicle frame includes side brackets on both sides, a bottom brace assembly 3 connected between the bottoms of the side brackets on both sides, and a rear brace assembly 2 connected between the rear parts of the side brackets 1 on both sides.

Referring to Fig. 1 and Fig. 2, the side bracket 1 on each side includes a front bracket 11, a push rod 12, a rear bracket 13, and a seatpost 14. The top of 13 is rotatably connected on the top of push rod 12. The seatpost 14 is connected between the front bracket 11 and the rear bracket 13, and its front and rear ends are respectively connected to the front bracket 11 and the rear bracket 13 in a rotational manner. The front brackets 11 on the side brackets 1 on both sides are arc rods whose front parts are bent toward the middle of the vehicle frame along the left and right directions of the vehicle frame. The front parts of the two front brackets 11 are connected by rotating shafts 15. When the car was folded, the front supports 11 on both sides moved closer around the rotating shaft 15.

The rear strut assembly 2 is connected between the rear brackets 13 of the side brackets 1 on both sides, and it can be unfolded or folded along the left and right directions of the vehicle frame.

The bottom brace assembly 3 includes a first bottom brace 31, a second bottom brace 32, a first connecting rod 33, and a second connecting rod 34. The first bottom brace 31 and the second bottom brace 32 are arranged to cross each other and The intersections are pivotally connected, the rear part of the first bottom brace 31 is rotatably connected to the lower part of one rear bracket 13, and the rear part of the second bottom brace 32 is rotatably connected to the lower part of the other rear bracket 13 Above, the connections between the first bottom brace 31 , the second bottom brace 32 and the rear bracket 13 can be switched by using L-shaped connectors. The rear portion of the first link 33 is pivotally connected to the front portion of the first bottom brace 31, the rear portion of the second link 34 is pivotally connected to the front portion of the second bottom brace 32, and the front portion of the first link 33 It is rotatably connected with the front part of the second connecting rod 34 and connected to the front part of the vehicle frame through the adapter device 6 . Referring to the accompanying drawings, the adapter device 6 includes a positioning member 61 fixedly connected to the front bracket 11, a rotating member 62 that is rotatably connected to the positioning member 61 through a first rotating shaft 63, and the rotating member 62 is connected to the first connecting rod. 33. The front part of the second connecting rod 34 is rotatably connected by the second rotating shaft 64 , and the extension directions of the axes of the first rotating shaft 63 and the second rotating shaft 64 are different. In this embodiment, the above-mentioned positioning member 61 is fixed on the front bracket 11 by welding, of course, it can also be fixed on the front bracket 11 by screws or the like.

The front wheel assembly 4 can be installed on the bottom front portion of one side of the front bracket 11 or on the rotating shaft 15, or on the first connecting rod 33, the second connecting rod 34, or on the adapter device 6 On one of the components, the two rear wheel assemblies 5 are installed on the bottom of the rear brackets 13 on both sides.

Referring to Figures 1 to 3, when the umbrella handle needs to be folded, the push rod 12 is turned forward, and the push rod 12 rotates around its transition point with the front bracket 11, and the front bracket 11 is turned backwards, The rear bracket 13 flips forward along with the flipping of the push rod 12, and continues to flip the push rod 12 forward. The strut 31 and the second bottom strut 32 pivot around the pivot joint between the two and gather in the middle, so that the first connecting rod 33 and the second connecting rod 34 at the front part are gathered and move forward, and the front The wheel assembly 4 and the rear wheel assembly 5 gradually move away from each other along the front-to-back direction of the frame, and the rear strut assembly 2 is folded along the left-right direction of the frame at the same time until the front bracket 11, the push rod 12, the rear bracket 13, and the seat post 14 are connected to each other. Close together, and finally form the structure shown in Figure 3.

When the umbrella handle car is unfolded from the folded state, the push rod 12 is directly pulled upwards and turned backwards, so that the front bracket 11 is gradually lifted upwards, and the rear bracket 13 is also turned backwards with the push rod 12. At the same time, the bottom support rod assembly 3 The first bottom strut 31 and the second bottom strut 32 are deployed to both sides so that the bottom strut assembly 3 is folded in the front-rear direction, and the rear strut assembly 2 is simultaneously deployed in the left-right direction of the vehicle frame until the vehicle frame is fully unfolded. . The cart is more convenient to fold and unfold, has a more compact structure after folding, occupies less space, and is convenient for storage and transportation.

On the children's umbrella handle car, because the bottom brace assembly 3 has adopted a pair of connecting rods (the first connecting rod 33, the second connecting rod 34) and a pair of intersecting bottom braces (the first bottom brace 31, The second bottom brace 32), therefore, when designing the width of the vehicle frame along the left-right direction and the length along the front-rear direction, its size is less restricted, and at the same time, the design and installation of the bottom brace assembly 3 are also more convenient .

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention shall fall within the protection scope of the present invention.

Claims (9)

1. null1. a child umbrella handle vehicle，Including the vehicle frame with deployed condition、It is located at front component anterior at the bottom of described vehicle frame、It is located at the wheel assembly at rear portion at the bottom of described vehicle frame、For described vehicle frame is locked locking mechanism in the deployed state，It is characterized in that: described vehicle frame includes laying respectively at the side stand of both sides、It is connected to described in both sides between side stand and can along the flexible bottom supporting rod assembly of the fore-and-aft direction of described vehicle frame，Described side stand at least includes fore-stock and after-poppet，Described bottom supporting rod assembly includes intersecting and the first bottom supporting rod of connecting at infall phase pivot and the second bottom supporting rod、The first connecting rod that rear portion is connected with the anterior phase pivot of described first bottom supporting rod、The second connecting rod that rear portion is connected with the anterior phase pivot of described second bottom supporting rod，The anterior phase pivot of the anterior and described second connecting rod of described first connecting rod is connected and is rotatably connected on the bottom of described fore-stock，It is connected on after-poppet described in side to the posterior rotation of described first bottom supporting rod，It is connected on the described after-poppet of opposite side to the posterior rotation of described second bottom supporting rod，The front portion of described first connecting rod and described second connecting rod is connected to the bottom of described fore-stock by switching device.
2. 2. a kind of child umbrella handle vehicle according to claim 1, it is characterised in that: the keeper that described switching device includes being connected on described fore-stock rotates with described keeper the tumbler being connected.
3. 3. a kind of child umbrella handle vehicle according to claim 2, it is characterized in that: described keeper is connected by the first rotating shaft with described tumbler, the front portion of described tumbler and described first connecting rod and described second connecting rod is rotated by the second rotating shaft and is connected, and described first rotating shaft is different from the axial line bearing of trend of described second rotating shaft.
4. 4. a kind of child umbrella handle vehicle according to claim 3, it is characterised in that: described keeper is fixed on described fore-stock by welding or screw.
5. 5. a kind of child umbrella handle vehicle according to claim 1, it is characterised in that: the bottom of the described fore-stock of both sides is rotated connection by rotation axle.
6. 6. a kind of child umbrella handle vehicle according to claim 5, it is characterised in that: the described fore-stock of both sides is the anterior bow bent along the left and right directions of described vehicle frame to described central frame beam.
7. 7. a kind of child umbrella handle vehicle according to claim 5, it is characterised in that: when described umbrella handle vehicle is folding, the described fore-stock of both sides is drawn close around described rotation axle.
8. 8. a kind of child umbrella handle vehicle according to claim 5, it is characterised in that: on the front portion, the end of the described fore-stock of described front component side installed therein.
9. 9. a kind of child umbrella handle vehicle according to claim 1, it is characterized in that: the described side stand of every side also includes push rod, seat bar, the bottom of described push rod rotates with the top of described fore-stock and is connected, the top of described after-poppet is connected on described push rod rotationally, the front portion of described seat bar be connected on described fore-stock rotationally and described seat bar posterior rotation be connected on described after-poppet, described vehicle frame also includes being connected to described in both sides between after-poppet and can along the rear pole assembly of the left and right directions folding of described vehicle frame.