CN104527757B - child umbrella handle vehicle - Google Patents

Abstract

The invention discloses a children's umbrella handle car, wherein the frame includes side brackets and strut assemblies on both sides, each side bracket includes a front bracket, a push rod whose lower part is pivotally connected to the upper part of the front bracket, The upper pivot is connected to the rear bracket on the push rod, the seat post is arranged between the front bracket and the rear bracket, the front part of the seat post is pivotally connected to the front bracket, the rear pivot is connected to the rear bracket, the front bracket, A four-bar linkage mechanism is formed among the rear bracket, the push rod and the seat post, and the strut assembly includes a bottom support assembly arranged between the side supports on both sides and a rear support assembly arranged between the rear supports on both sides. When the frame is folded, you only need to unlock the locking mechanism and turn the push rod backwards, so that the rods on the frame can rotate with each other and gradually move closer together to complete the folding of the frame. The operation is very convenient. The frame structure is very compact, takes up little space, and can stand on the ground, easy to carry and store.

Description

children's umbrella car

technical field

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

Background technique

The children's umbrella handle car in the prior art usually has a foldable frame, a wheel assembly located at the bottom of the frame, and a locking mechanism for locking the frame in an unfolded position. The frame has various structures, Correspondingly, the number of rods and the connection methods between the rods are also different, resulting in different folding and unfolding principles of each umbrella handle car, and also differences in convenience of use.

Contents of the invention

The object of the present invention is to provide a children's umbrella handle car with few rods, simple structure and convenient folding and unfolding operations.

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

A children's umbrella handle car, comprising a foldable vehicle frame, a wheel assembly arranged at the bottom of the vehicle frame, and a locking mechanism for locking the vehicle frame in an unfolded state. Two side brackets on the side, a strut assembly that can be folded laterally between the side brackets on both sides, the side brackets on each side include a front bracket, and the lower part is pivotally connected to the upper part of the front bracket The push rod of the push rod, the rear bracket that the upper pivot is connected on the push rod, the seat post that is located between the front bracket and the described rear bracket, the front part of the seat post is pivotally connected to the front bracket Above, the rear part of the seatpost is pivotally connected to the rear bracket, and a four-bar linkage mechanism is formed between the front bracket, the push rod, the rear bracket and the seatpost, and the brace assembly includes The bottom brace assembly between the side brackets and the rear bracket assembly arranged between the rear brackets on both sides, when the vehicle frame is folded, the push rod turns back and moves closer to the rear bracket, The front part of the seatpost and the front part of the bottom brace assembly turn up and drive the front bracket and the rear bracket to move closer to each other, and the seatpost and the bottom brace assembly are folded on the sides of the two sides. between brackets.

Preferably, when the vehicle frame is unfolded, the push rod and the front bracket extend along the same straight line, and a triangular structure is formed between the front bracket, the push rod, the rear bracket and the seat post .

Preferably, the locking mechanism is arranged between the front bracket and the push rod for locking the two.

Further, the upper end of the front bracket is fixed with a first connector, the lower end of the push rod is fixed with a second connector, and the first connector is pivotally connected with the second connector, so The locking mechanism is arranged between the first connector and the second connector.

Preferably, the bottom brace assembly is a cross brace assembly, and the cross brace assembly includes two bottom braces that intersect each other and are pivotally connected at the intersection. The front ends of the bottom braces are rotatably connected on one side The front part of the seatpost, the rear end of the bottom brace is rotatably connected to the rear bracket on the other side.

Further, the rear part of the bottom brace is rotatably connected to the rear bracket through a first connecting piece, the rear part of the seatpost is pivotally connected to the rear bracket through a first shaft, and the first A link is located below the first shaft on the rear bracket.

Further, the front part of the bottom brace is rotatably connected to the seatpost through a second connecting piece, and the seatpost is pivotally connected to the front bracket through a second shaft, and the second connecting piece is The seatpost is located forwardly of the second axis.

Further, the front bracket is fixed with a rearwardly extending adapter end, and the seat post is pivotally connected to the adapter end through the second shaft.

Preferably, the vehicle frame further includes a footboard that can be folded laterally and connected between the lower parts of the front brackets on both sides.

Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art: the children's umbrella handle car of the present invention has a small number of rods and a very simple structure. The rods on the frame rotate with each other and gradually move closer together, thereby realizing the folding of the frame. The folding is very convenient. The folded frame has a very compact structure, takes up little space, can stand on the ground, and is easy to carry and store.

Description of drawings

Accompanying drawing 1 is the perspective view of children's umbrella handle car of the present invention in the expanded state;

Accompanying drawing 2 is the side view of the children's umbrella handle car of the present invention in the unfolded state;

Accompanying drawing 3 is the three-dimensional view of the children's umbrella handle car of the present invention in a half-folded state;

Accompanying drawing 4 is the side view of the children's umbrella handle car of the present invention in a half-folded state;

Accompanying drawing 5 is the side view of the children's umbrella handle car in the folded state of the present invention.

Among them: 1. Front bracket; 11. First connector; 12. Adapter terminal; 2. Push rod; 21. Second connector; 3. Rear bracket; 4. Seat post; 41. First shaft; 42 , the second axis;

5. Bottom brace assembly; 51. Bottom brace; 52. First connector; 53. Second connector; 6. Rear brace assembly; 61. Handle; 7. Footboard;

20, front wheel; 30, rear wheel.

detailed description

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

Referring to the children's umbrella handle car shown in Figures 1 to 5, it includes a frame with an unfolded position and a folded position, a wheel assembly at the bottom of the frame, and a locking mechanism for locking the frame in the unfolded position. The frame includes two side supports located on the left and right sides respectively, and a strut assembly connected between the side supports on both sides and capable of being folded laterally. The side brackets on each side include a front bracket 1 , a push rod 2 , a rear bracket 3 and a seat post 4 . The wheel assembly includes front wheels 20 arranged at the bottoms of the front supports 1 on both sides, and rear wheels 30 arranged at the bottoms of the rear supports 3 on both sides.

The upper part of the front bracket 1 is pivotally connected to the lower part of the push rod 2, the upper part of the rear bracket 3 is pivotally connected to the push rod 2, the seatpost 4 is arranged between the front bracket 1 and the rear bracket 3, and the front of the seatpost 4 The upper part is pivotally connected to the front bracket 1, and the rear part of the seat post 4 is pivotally connected to the rear bracket 3. Specifically, in this embodiment, the rear end of the seat post 4 is pivotally connected to the rear bracket 3 through the first shaft 41, and the front bracket 1 is fixed with a rearwardly extending adapter terminal 12, and the seat post 4 The front end of the front end is pivotally connected to the transfer terminal 12 through the second shaft 42 . In this way, a four-bar linkage mechanism is formed between the front bracket 1 , the push rod 2 , the rear bracket 3 and the seat post 4 .

The locking mechanism can be arranged between the two pivotally connected rods of the above-mentioned four-bar linkage mechanism to lock the two rods and then lock the four-bar linkage mechanism. In this embodiment, the locking mechanism is arranged on the front bracket 1 and the push rod 2 are used to lock the two and then lock the four-bar linkage mechanism. Specifically, the upper end of the front bracket 1 is fixed with a first connector 11, and the lower end of the push rod 2 is fixed with a second connector. 21. The first connecting head 11 is pivotally connected to the second connecting head 21 to pivotally connect the front bracket 1 and the push rod 2 together. The locking mechanism is arranged between the first connecting head 11 and the second connecting head 21. When the locking mechanism is locked, the front bracket 1 and the push rod 2 are fixed to each other, so that the four-bar linkage mechanism formed between the front bracket 1, the push rod 2, the rear bracket 3 and the seat post 4 can be locked, so that the seat post 4 is fixedly supported between the front bracket 1 and the rear bracket 3 along the front-rear direction.

Referring to the drawings, the strut assembly connected between the side supports on both sides includes a bottom strut assembly 5 and a rear support assembly 6 . The bottom brace assembly 5 adopts a cross brace assembly, and the cross brace assembly includes two bottom braces 51 that cross each other and are pivotally connected at the intersections. Both bottom braces 51 are connected to the side brackets on both sides in the following manner Between: the rear end of the bottom brace 51 is rotatably connected to the rear bracket 3 on one side through the first connecting piece 52, and the first connecting piece 52 is located below the first shaft 41 on the side rear bracket 3; The front end of the strut 51 is rotatably connected to the seat post 4 on the other side through a second connecting piece 53 , and the second connecting piece 53 is located in front of the second shaft 42 on the side seat post 4 .

The rear support assembly 6 can be folded and expanded along the left and right direction of the vehicle frame and is arranged between the rear brackets 3 on both sides. 6. Existing strut structures that can realize the above functions can be used, and will not be repeated here. In order to facilitate the folding and opening of the rear support assembly 6, a handle 61 is provided on the rear support assembly 6. By pressing down or lifting the handle 61, the rear support assembly 6 can be unfolded or retracted along the left and right directions of the vehicle frame correspondingly. fold.

Also be provided with footboard 7 between the bottom of the front support 1 of both sides, footboard 7 also can expand and fold along vehicle frame left and right direction when the side support of both sides expands and gathers along left and right direction.

When the vehicle frame is in the unfolded position, as shown in Figure 1 and Figure 2, the locking mechanism is locked, the push rod 2 and the front bracket 1 extend along the same straight line, and the seatpost 4 is supported between the front bracket 1 and the rear bracket 3 along the front and rear directions. Between the front bracket 1, the push rod 2, the rear bracket 3 and the seatpost 4, a triangular structure is formed in a stable unfolded state; the bottom brace assembly 5 and the rear support assembly 6 are stably deployed on the sides The brackets form support for the expansion of the side brackets on both sides along the left and right directions of the vehicle frame, and the vehicle frame forms a rigid body, which has good rigidity and stability after being expanded.

When the vehicle frame needs to be folded, as shown in Figure 3 and Figure 4, first unlock the locking mechanism, and lift the handle 61 upwards to unlock the rear support assembly 6, turn the push rod 2 backward and face the direction of the rear bracket 3 Move closer, when the push rod 2 turns back, its lower part is lifted up so that the front bracket 1 rotates relative to the push rod 2, so that the front bracket 1 gradually moves closer to the rear bracket 3, and the front part of the seat post 4 and the bottom brace assembly 5 gradually rises. Turn over and gradually stand up and gather between the front bracket 1 and the rear bracket 3; at the same time, the two bottom braces 51 of the bottom brace assembly 5 rotate relative to each other and gradually gather along the left and right directions, which also drives the rear support assembly. 6 Gradually gather along the left and right directions of the frame. Finally, the front bracket 1, the seat post 4, the rear bracket 3, and the push rod 2 are close to each other in the side brackets on both sides, and the bottom brace assembly 5 and the rear support assembly 6 are gathered between the side brackets on both sides along the left and right directions. In between, complete the folding of the frame. The folded vehicle frame has a structure as shown in Fig. 5, and all rods on the vehicle frame are closely connected together, and the folded structure is compact and takes up little space. During the folding process of the vehicle frame, the front wheels 20 and the rear wheels 30 are always on the ground, making the folding more convenient, and the folded vehicle frame can stand on the ground by relying on the front wheels 20 and the rear wheels 30, which is convenient for storage and carrying.

When the umbrella handle car needs to be deployed and used, first lift the push rod 2 to make it flip forward relative to the rear bracket 3, and drive the front bracket 1 and the rear bracket 3 to unfold along the front and rear directions, and the front part of the seatpost 4 and the bottom support The front part of the rod assembly 5 is turned down, and the two bottom braces 51 of the bottom brace assembly 5 rotate relative to each other so that the bottom brace assembly 5 gradually expands relative to the left and right directions of the vehicle frame, and the rear support assembly 6 also moves along the left and right sides of the frame. The direction is gradually expanded until the frame is fully expanded, the seat post 4 is supported between the front bracket 1 and the rear bracket 3 along the front and rear direction, and the operator steps on the handle 61, so that the rear support assembly 6 reaches the dead point and stably Expand between the rear brackets 3 on both sides, and then lock the locking mechanism between the front bracket 1 and the push rod 3, and the vehicle frame is locked in the expanded state.

To sum up, the structure of the vehicle frame is simple, and the operation of folding and unfolding is very convenient. The volume of the vehicle frame after folding is small, and it is easy to carry and store.

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 (6)

1. a kind of child umbrella handle vehicle, including folding vehicle frame, the wheel assembly located at the bottom of frame, for by the vehicle frame Locking locking mechanism in the deployed state, the vehicle frame includes two side stands respectively positioned at the left and right sides, located at both sides Between the side stand can horizontal folding strut component, it is characterised in that：

The side stand per side includes the push rod that fore-stock, bottom be connected with the top phase pivot of the fore-stock, top The after-poppet on the push rod, the seat bar between the fore-stock and the after-poppet are pivotally connected in, the seat bar Front portion is pivotally connected on the fore-stock, and the back pivot of the seat bar is connected on the after-poppet, the fore-stock, is pushed away Quadric chain is constituted between bar, after-poppet and seat bar, the strut component is included located at the bottom described in both sides between side stand Strut component and located at the rear attached support component described in both sides between after-poppet,

The bottom bracing bar assembly is cross support component, and the cross support component includes intersecting and connects in infall phase pivot Two foundation struts, the front end of the bottom supporting rod is rotationally connected to the front portion of seat bar described in side, the rear end of the bottom supporting rod Rotationally be connected on the after-poppet of opposite side, wherein, the rear portion of the bottom supporting rod by the first connector with it is described after Support rotates connection, and the rear portion of the seat bar is pivotally connected on the after-poppet by first axle, first connector In the rear positioned at the lower section of the first axle on support；The front portion of the bottom supporting rod passes through the second connector and the seat bar phase Connection is rotated, the seat bar is connected with the fore-stock phase pivot by the second axle, and second connector is on the seat bar Positioned at the front of second axle,

When the vehicle frame folding, turn over after the push rod and mutually draw close with the after-poppet, front portion and the bottom supporting rod group of the seat bar Turn over and drive the fore-stock mutually to draw close with the after-poppet on the front portion of part, the seat bar is drawn in the bottom bracing bar assembly Between the side stand of both sides.

2. child umbrella handle vehicle according to claim 1, it is characterised in that：It is when the vehicle frame launches, the push rod, described Fore-stock extends along same rectilinear direction, constitutes triangle between the fore-stock, the push rod, the after-poppet and the seat bar Shape structure.

3. child umbrella handle vehicle according to claim 2, it is characterised in that：The locking mechanism is located at the fore-stock and institute State between push rod for both are locked.

4. child umbrella handle vehicle according to claim 2, it is characterised in that：The upper end of the fore-stock is installed with the first connection Head, the lower end of the push rod are installed with the second connector, and first connector is connected with the second connector phase pivot, institute State locking mechanism to be located between first connector and second connector.

5. child umbrella handle vehicle according to claim 1, it is characterised in that：Be installed with the fore-stock extend back turn Termination is connect, the seat bar is pivotally connected on the switching termination by second axle.

6. child umbrella handle vehicle according to claim 1, it is characterised in that：The vehicle frame also includes can laterally folding ground connection In the foot pedal described in both sides between fore-stock bottom.