CN105346584A - Baby stroller - Google Patents

Abstract

The invention discloses a children's umbrella handle car, the frame of which includes side brackets respectively located on the left and right sides, and each side bracket includes a front support rod, a rear support rod, a push rod, a side rod, a side rod connecting rod, Seat post and back bar. During the folding process of the frame, the rear end of the seat post goes up and pushes the back bar to move upwards and is folded together with the back bar between the front post and the rear post. It is located between the seat post and the back post. The seat cushion and the backrest located at the position of the backrest bar are always kept in a relatively unfolded state, which prevents the extrusion and stacking between the seat cushion and the backrest, so that the cloth cover will not affect the folding of the frame It has an impact, and also improves the aesthetics of the folded vehicle frame.

Description

children's umbrella car

technical field

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

Background technique

The children's umbrella handle vehicle in the prior art includes a vehicle frame with an expanded state and a folded state, a wheel assembly arranged at the bottom of the vehicle frame, and a locking mechanism for locking the vehicle frame in the expanded state. There are many kinds of children's umbrella handle vehicles in the world, the number of frame rods is different, and the connection positions between the rods are also different, so the folding principles and folding methods are also different, and the state of the folded frame is also different. Different, the convenience of use also varies.

In addition, on the existing various children's umbrella handle cars, the seat post and the back bar on the frame are often close to each other after the frame is folded. The backrest cloth covers at the position of the backrest bar are squeezed and stacked together, which limits the volume reduction of the folded frame to a certain extent, and also affects the aesthetics of the folded frame to a certain extent.

Contents of the invention

The purpose of the present invention is to provide a new structure of children's umbrella handle car in order to overcome the shortcomings of the prior art.

In order to achieve the above object, the technical solution adopted by the present invention is: a children's umbrella handle car, which includes a frame with an unfolded state and a folded state, and a locking mechanism for locking the frame in the unfolded state. The frame includes two side brackets respectively located on the left and right sides, and a strut assembly arranged between the two side brackets, and the side brackets on each side include:

a front strut, the bottom of which is provided with a front wheel assembly;

a rear strut, the bottom of which is provided with a rear wheel assembly;

a push rod, the lower end of the push rod is slidably arranged along the length extension direction of the front support rod, and the upper part of the rear support rod is pivotally connected to the push rod;

a side bar, the side bar extends along the front-to-back direction, the front part of the side bar is pivotally connected to the front support bar, and the rear end of the side bar is rotatable relative to the rear support bar and can move along the The length extension direction of the rear support rod is slidably arranged on the rear support rod;

a side rod connecting rod, one end of the side rod connecting rod is pivotally connected to the side rod, and the other end of the side rod connecting rod is pivotally connected to the rear support rod;

A seat post, the seat post extending along the front-rear direction, the front part of the seat post is pivotally connected to the front strut, the rear part of the seat post is provided with a seat post connecting piece, and the seat post connecting piece one end of which is pivotally connected to the rear of the seat post and the other end of which is pivotally connected to the side post;

a back bar having a lower portion pivotally connected to the seat post;

When the vehicle frame is in the unfolded state, on the side brackets on each side, a triangular structure is formed among the push rods, front support rods, rear support rods and side rods, and the side rods, side rod connecting rods Another triangular structure is formed between the rear pole and the rear pole; when the vehicle frame is in the folded state, the push rod slides down along the front pole and gathers relative to the front pole, and the rear end of the side pole slide up to make the rear support rod and front support rod gather along the front and back directions, and at the same time drive the rear end of the seat post to turn upwards relative to the front support rod, and the backrest rod goes up with the seat post and is aligned with the A seatpost is stowed together between the front and rear stays.

Preferably, the front end of the seat post is pivotally connected to the front strut by a first shaft, the front end of the side bar is pivotally connected to the front strut by a second shaft, and the first shaft Located above the second shaft on the front strut.

Further, the lower end of the push rod is fixedly provided with a push rod sliding sleeve, and the push rod sliding sleeve is provided on the front support rod so as to be able to slide up and down and is located on the first shaft on the front support rod. above.

Preferably, the rear end of the side rod is pivotally connected with a sliding piece, and the sliding piece is provided on the rear support rod so as to be able to slide up and down, and the front end of the side rod connecting rod is pivotally connected to the side rod The rear end of the side rod connecting rod is pivotally connected to the rear support rod through a third shaft, and the third shaft is located below the slider on the rear support rod.

Further, the sliding member is a side rod sliding sleeve, and the side rod sliding sleeve is sleeved on the rear support rod so as to slide up and down.

Furthermore, the locking mechanism includes a locking piece arranged between the side bar sliding sleeve and the rear support bar for locking the two, and the locking pieces on both sides are provided for locking the two The unlocking handle for synchronous unlocking of the above-mentioned locking parts.

Furthermore, a folding hook is provided on the side rod sliding sleeve, and a hook seat is provided on the upper part of the rear support rod. When the vehicle frame is in the folded state, the push rod, front support rod, and rear support rod and the side bars are moved closer to each other, and the folding hook cooperates with the hook seat to be hooked so that the vehicle frame is locked in the folded state.

Preferably, the brace assembly includes a bottom brace assembly disposed between the side brackets on both sides, the bottom brace assembly includes two bottom braces that intersect each other and are pivotally connected at the intersection, each The front end of the bottom strut is pivotally connected to the side strut on one side and the rear end is pivotally connected to the rear strut on the other side.

Further, the rear end of the bottom support rod is pivotally connected to the lower part of the rear support rod through a pin shaft, and the pivot connection position of the side rod connecting rod and the rear support rod is at the position of the rear support rod above the pin shaft.

Preferably, the children's umbrella handle car also includes a cloth cover arranged on the frame, and the cloth cover includes a seat cushion part located under the seat posts on both sides, a backrest located behind the backrest bars on both sides part, when the vehicle frame is folded, the rear part of the seatpost goes up and the backrest rod moves up accordingly, so that the backrest part and the seat cushion part are always kept in an unfolded state.

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 simple structure and is easy to fold and operate; And push the backrest bar to move upwards and gather together with the backrest bar between the front strut and the rear strut, the seat cushion part located at the position of the seat post and the backrest part located at the position of the backrest bar are always kept in a relatively unfolded state , so that there will be no extrusion and stacking between the seat cushion and the backrest, so that the setting of the cloth cover will not affect the folding of the frame, and also improve the aesthetics of the folded frame.

Description of drawings

Accompanying drawing 1 is the perspective view that children's umbrella handle car of the present invention is in unfolded 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 rear view of the children's umbrella handle car of the present invention in the unfolded 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 children's umbrella handle car of the present invention in the folded state;

Among them: 1. Front support rod; 2. Rear support rod; 3. Push rod; 4. Side rod; 5. Side rod connecting rod; 6. Seat rod; 7. Seat rod connecting piece; 8. Back rod; Slider (side rod sliding sleeve); 10. Push rod sliding sleeve; 11. Folding hook; 12. Hook seat; 13. Bottom strut; 14. Rear strut assembly; 15. Unlock handle; 16. Backrest link group ; 17, pedals;

21. The first shaft; 22. The second shaft; 23. The third shaft; 24. Pin shaft;

31. Cushion; 32. Backrest; 33. Sunshade;

40, front wheel assembly; 50, rear wheel assembly.

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 Fig. 1 to Fig. 5, it includes a vehicle frame with an expanded state and a folded state, and a locking mechanism for locking the vehicle frame in the expanded state. A side bracket and a strut assembly arranged between the two side brackets, wherein the strut assembly can be deployed and folded along the left and right directions between the side brackets on both sides to realize the unfolding and folding of the vehicle frame in the left and right directions.

As shown in Figure 1 and Figure 2, the side brackets on each side include:

Front strut 1, the bottom of which is provided with front wheel assembly 40;

The rear strut 2 is provided with a rear wheel assembly 50 at its bottom;

Push rod 3 , the lower end of which push rod 3 is slidably arranged along the length extension direction of front strut 1 , and the upper part of rear strut 2 is pivotally connected to the top of push rod 3 . Here, the lower end of the push rod 3 is fixedly provided with a push rod sliding sleeve 10, and the push rod sliding sleeve 10 is provided on the front strut 1 so as to be able to slide up and down;

Side bar 4, the side bar 4 extends along the front-to-back direction, the front part of the side bar 4 is pivotally connected to the front support bar 1, the rear part of the side bar 4 can rotate relative to the rear support bar 2 and can move along the rear support bar 2 The length extension direction is slidably arranged on the rear strut 2 . In this embodiment, the front end of the side bar 4 is pivotally connected to the lower part of the front support bar 1 through the second shaft 22, and a sliding member is pivotally connected to the rear end of the side bar 4, which is a side bar here. Sliding sleeve 9, the side rod sliding sleeve 9 is sleeved on the rear strut 2 slidingly up and down;

Side rod connecting rod 5, one end of the side rod connecting rod 5 is pivotally connected to the side rod 4, and the other end is pivotally connected to the rear strut 2, so that the side rod 4, the rear strut 2, and the side rod sliding sleeve Form a slider crank mechanism between 9 and the side bar connecting rod 5. In this embodiment, the side rod connecting rod 5 is located below the side rod 4, specifically, the front end of the side rod connecting rod 5 is pivotally connected to the middle part of the side rod 4, and the rear end of the side rod connecting rod 5 passes through the third shaft. 23 is pivotally connected to the rear strut 2, and the third shaft 23 is located below the side rod sliding sleeve 9 on the rear strut 2;

Seat post 6, the seat post 6 extends along the front-to-back direction, the front part of the seat post 6 is pivotally connected to the front strut 1, and the rear part is provided with a seat post connecting piece 7, and one end of the seat post connecting piece 7 is pivoted Connected to the rear portion of the seat post 6 , the other end of the seat post connecting piece 7 is pivotally connected to the side post 4 . Specifically, in this embodiment, the front end of the seat post 6 is pivotally connected to the front strut 1 through the first shaft 21, the first shaft 21 is located above the second shaft 22 on the front strut 1, and the The first shaft 21 is located below the push rod sliding sleeve 10;

A back bar 8 , the lower part of which is pivotally connected to the seat post 6 .

Referring to the accompanying drawings, the strut assembly includes a bottom strut assembly arranged between the side supports on both sides. The bottom strut assembly includes two bottom struts 13 that cross each other and are pivotally connected at the intersection. The front end of the root support bar 13 is pivotally connected to the side bar 4 on one side and its rear end is pivotally connected to the rear support bar 2 on the other side. Here, the rear end of the bottom support rod 13 is pivotally connected to the lower part of the rear support rod 2 through a pin shaft 24 , and the pin shaft 24 is located below the third shaft 23 on the rear support rod 2 . The strut assembly also includes a rear support assembly 14 that can be horizontally expanded and folded between the rear support rods 2 on both sides. Its structure will not be repeated here.

In addition, a footboard 17 is also provided between the bottoms of the front struts 1 on both sides, and the footboard 17 can be folded in the left-right direction automatically when the side brackets on both sides move closer together in the left-right direction. Between the backrest bars 8 on both sides, there is also a backrest link group 16 that can be expanded or folded laterally, and the backrest link group 16 and the backrest bars 8 on both sides jointly form a backrest frame for children to ride on.

Referring to Fig. 2, Fig. 4 and Fig. 5, the children's umbrella handle car also includes a cloth cover arranged on the frame, and the cloth cover includes a cushion part 31 located under the seat post 6 on both sides, and a backrest bar 32 located on both sides. The backrest 32 on the rear side and the front of the push rod 3 are also provided with a foldable awning 33 .

On the children's umbrella handle car of this embodiment, the locking mechanism includes a locking piece (not shown) that is arranged between the side bar sliding sleeve 9 and the rear support bar 2 on both sides to lock the two. The parts can adopt the structural form that the lock pin matches the lock hole. The above-mentioned locking pieces are provided between the side bar sliding sleeves 9 on both sides and the rear support bar 2 . As shown in Fig. 1 and Fig. 3, an unlocking handle 15 for synchronously unlocking the two locking parts is provided between the locking parts on both sides. The side bar sliding sleeve 9 is also provided with a folding hook 11, and the upper part of the rear pole 2 is provided with a hook seat 12. When the side bar sliding sleeve 9 slides to the upper part of the rear pole 2, the folding hook 11 and the hook seat 12 can be connected to each other. Cooperate with the hook so that the side bar sliding sleeve 9 is fixedly located at the upper position of the rear support bar 2 .

Referring to Fig. 1, Fig. 2 and Fig. 3, when the children's umbrella handle car is in the unfolded state, the locking mechanism is locked, the two bottom struts 13 of the bottom strut assembly are relatively expanded, and the rear support assembly 14 is supported in the left and right direction. Between the rear struts 2 on both sides. On the side brackets on each side, the push rod 3 and the front support rod 1 are relatively expanded and basically extend along the same length direction, and a triangular structure is formed between the push rod 3, the front support rod 1, the rear support rod 2 and the side rod 4; Another triangular structure is formed between the rod 4, the side rod connecting rod 5 and the rear rod 2. The seat post 6 extends along the front and rear directions and is stably supported between the front rod 1 and the side rod 4. The back rod 8 is in the cloth cover Under the action of the backrest part 32 of the seat post 6, it is in an upright state, and the seat cushion part 31 and the backrest part 32 of the cloth cover are in a relatively unfolded state, as shown in FIG. 2 .

When it is necessary to fold the children's umbrella handle car, the operator first unlocks the rear support assembly 14, and then pulls the unlocking handle 15 upwards to unlock the locking parts on both sides, which simultaneously drives the side rod sliding sleeves 9 on both sides along the Slide up the rear strut 2. The rear end of the side rod 4 slides upwards. Under the simultaneous action of the side rod connecting rod 5, the side rod 4 drives the front strut 1 and the rear strut 2 to gradually move closer together in the front and rear direction, and the push rod 3 moves forward through the push rod sliding sleeve 10. The strut 1 slides down and gradually draws in relative to the front strut 1 . At the same time, under the action of the seat post connecting piece 7, the seat post 6 is turned upwards with the side bar 4 relative to the front strut 1, and the rear end of the seat post 6 gradually ascends and pushes the back bar 8 to gradually ascend, so that the seat post 6 and the back bar 8 They are folded together between the front pole 1 and the rear pole 2, so that during the folding process, the seat cushion part 31 and the backrest part 32 of the cloth cover always maintain a relatively unfolded state without being stacked and squeezed together. As shown in Figure 3. During the above-mentioned folding process of the vehicle frame, the rear end of the side bar 4 slides up to drive the front strut 1 and the rear strut 2 to gradually move closer together along the front and rear directions, and the side bar 4 also drives the front end of the bottom strut 13 to gradually move up and The two intersecting bottom struts 13 are rotated to gradually move closer together, so that the side brackets on both sides gradually move closer to realize the horizontal folding of the vehicle frame.

Finally, the front struts 1, push rods 3, side struts 4, seat posts 6, back bars 8 and rear struts 2 on each side are gathered together along the front and rear directions, wherein the seat post 6 is located below the back bar 8 and The backrest bar 8 basically extends along the same length direction, the seat cushion part 31 and the backrest part 32 of the cloth cover are kept in a relatively unfolded state, and the bottom support rod assembly, the rear support assembly 14, the footboard 17 and the backrest link group 16 are gathered together. Between the side brackets on both sides, as shown in Figure 5. At this time, the side bar sliding sleeve 9 slides to the top of the rear strut 2, and the vehicle frame can be locked in the folded state through the cooperation of the folding hook 11 and the hook seat 12.

To sum up, the children's umbrella handle car of the present invention has a simple structure and convenient folding operation. After folding, all the rods are closely connected together. The folded frame has a compact structure and a small volume. The backrest part 31 and the backrest part 32 will not be squeezed and stacked together, so that the folding of the vehicle frame will not be affected by the stacking of the cloth cover, and the folded vehicle frame will be more beautiful.

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 (10)

1. a child umbrella handle vehicle, comprise there is deployed condition and folded state vehicle frame, for by described vehicle frame locking lockout mechanism in the deployed state, described vehicle frame comprise lay respectively at the left and right sides two side stands, be located at strut assembly between two described side stands, it is characterized in that: the described side stand of every side includes:

Front support rod, is provided with front component bottom it;

Back stay, is provided with wheel assembly bottom it;

Push rod, described in the lower end edge of described push rod, the length bearing of trend of front support rod is arranged slidably, and the upper pivot of described back stay is connected on described push rod;

Side lever, described side lever extends along the longitudinal direction, and the front portion of described side lever is pivotally connected on described front support rod, and the rear end of described side lever can be rotated relative to described back stay and can be located on described back stay slidably along the length bearing of trend of described back stay;

Side lever pipe link, the provided at one of described side lever pipe link is connected on described side lever, and the other end of described side lever pipe link is pivotally connected on described back stay;

Seat bar, described seat bar extends along the longitudinal direction, and the front portion of described seat bar is pivotally connected on described front support rod, and the rear portion of described seat bar is provided with a bar connecting strap, the provided at one of described seat bar connecting strap is connected to the rear portion of described seat bar, and its other end is pivotally connected on described side lever;

Back support bar, the lower pivot of described back support bar is connected on described seat bar;

When described vehicle frame is in deployed condition, on the described side stand of every side, between described push rod, front support rod, back stay and side lever, form triangular structure, between described side lever, side lever pipe link and back stay, form another triangular structure; When described vehicle frame is in folded state, described push rod is relative with described front support rod along described front support rod downslide to be drawn in, the rear end of described side lever is slided and described back stay, front support rod are drawn in along the longitudinal direction, drive the relatively described front support rod in the rear end of described seat bar upwards to overturn simultaneously, described back support bar with described seat bar up and and described seat bar draw between described front support rod and back stay.

2. child umbrella handle vehicle according to claim 1, it is characterized in that: the front end of described seat bar is pivotally connected on described front support rod by the first axle, the front end of described side lever is pivotally connected on described front support rod by the second axle, and described first axle is positioned at above described second axle on described front support rod.

3. child umbrella handle vehicle according to claim 2, is characterized in that: the lower end of described push rod is fixedly provided with push rod sliding sleeve, and described push rod sliding sleeve can to slide up and down to be located on described front support rod and to be positioned on described front support rod above described first axle.

4. child umbrella handle vehicle according to claim 1, it is characterized in that: the rear end pivotal joint of described side lever has sliding part, described sliding part can slide up and down to be located on described back stay, the front end of described side lever pipe link is pivotally connected in the middle part of described side lever, the rear end of described side lever pipe link is pivotally connected on described back stay by the 3rd axle, and described 3rd axle in the rear pole is positioned at the below of described sliding part.

5. child umbrella handle vehicle according to claim 4, is characterized in that: described sliding part is side lever sliding sleeve, and described side lever sliding sleeve slides up and down to be set on described back stay.

6. child umbrella handle vehicle according to claim 5, it is characterized in that: described lockout mechanism comprises the locking piece be located at for both being locked between described side lever sliding sleeve and described back stay, being provided with between the described locking piece of both sides for the unblock of locking piece synchronizing unlocking described in two is shaken hands.

7. child umbrella handle vehicle according to claim 5, it is characterized in that: described side lever sliding sleeve is provided with Foldable hanging hook, the top of described back stay is provided with hook base, when described vehicle frame is in folded state, described push rod, front support rod, back stay and side lever are mutually drawn close the hook and described Foldable hanging hook matches with described hook base and described vehicle frame are locked in a folded configuration.

8. child umbrella handle vehicle according to claim 1, it is characterized in that: described strut assembly comprises the bottom supporting rod assembly be located at described in both sides between side stand, described bottom supporting rod assembly comprises and mutually intersecting and the two foundation struts connected at infall phase pivot, and on the described side lever that the front end of bottom supporting rod described in every root is pivotally connected in side and its rear end is pivotally connected on the described back stay of opposite side.

9. child umbrella handle vehicle according to claim 8, it is characterized in that: the rear end of described bottom supporting rod is pivotally connected in by bearing pin on the bottom of described back stay, described side lever pipe link and described back stay phase pivot connection location in the rear pole are positioned at the top of described bearing pin.

10. according to the arbitrary described child umbrella handle vehicle of claim 1 to 9, it is characterized in that: described child umbrella handle vehicle also comprises the cloth cover be located on described vehicle frame, described cloth cover comprises and is positioned at cushion part below seat bar described in both sides, is positioned at back-rest on rear side of back support bar described in both sides, when described vehicle frame folding, the rear portion of described seat bar is up and make described back support bar thereupon up, and then makes described back-rest and described cushion part remain deployed condition.