CN100387468C - baby cart - Google Patents

Abstract

A baby stroller, comprising a stroller frame, a front wheel assembly, a rear wheel assembly, the stroller frame includes a front wheel bracket, side brackets positioned on both sides of the front wheel bracket, each side side bracket includes a rear wheel bracket, a lower Push bar, the front wheel assembly is arranged on the front wheel bracket, the rear wheel assembly is arranged on the rear wheel bracket, the side bracket also includes a rear wheel bracket connector, and the rear wheel bracket connector is rotatably connected with the end of the rear wheel bracket , one part in the rear part of the front wheel support, the bottom of the push-down bar, and the rear wheel support connector is rotatably connected with the other two parts. Less interference between the rods of the stroller frame allows the stroller frame to be folded down to a smaller volume.

Description

baby cart

technical field

The invention relates to a baby stroller.

Background technique

The baby stroller in the prior art includes a stroller frame, a front wheel assembly, and a rear wheel assembly. The stroller frame includes a front wheel bracket, side brackets located on both sides of the front wheel bracket, each side The side bracket includes a rear wheel bracket and a push-down lever, the front wheel assembly is arranged on the front wheel bracket, the rear wheel assembly is arranged on the rear wheel bracket, and usually the push The car frame also needs at least one connecting rod, which forms a four-bar linkage with the front wheel bracket, the push-down handle bar and the rear wheel bracket, and finally pushes the cart The vehicle frame is folded, but because the interference between the rods is relatively large, the volume of the folded stroller frame is relatively large.

Contents of the invention

The object of the present invention is to provide a baby stroller, which has a small volume after being folded.

The technical solution of the present invention is: a baby stroller, including a stroller frame, a front wheel assembly, and a rear wheel assembly, the stroller frame includes a front wheel bracket, side walls located on both sides of the front wheel bracket, Brackets, the side brackets on each side include a rear wheel bracket and a push-down handle bar, the front wheel assembly is arranged on the front wheel bracket, and the rear wheel assembly is arranged on one end of the rear wheel bracket Above, the side bracket also includes a rear wheel bracket connector, the rear wheel bracket connector is rotatably connected to the other end of the rear wheel bracket, the rear part of the front wheel bracket, the lower One part in the bottom of the push handle bar and the three parts of the rear wheel bracket connector is rotatably connected with the other two parts.

Compared with the prior art, the present invention has the following advantages: Take the following situation as an example, the lower part of the described push-down handle bar is rotatably connected with the rear part of the front wheel bracket, and the push-down handle bar of the described The lower part is rotatably connected with the rear wheel support connector. When folding, first rotate and fold the rear wheel bracket relative to the rear wheel bracket connector, then the rear wheel bracket connector drives the rear wheel bracket to rotate and fold relative to the push-down handle bar, and finally pushes down the handle bar to drive the rear wheel The bracket and the connecting part of the rear wheel bracket are rotated and folded with the front wheel bracket, so that the cart frame is folded, and the interference between the rods of the cart frame is small, so the cart frame can be folded to a smaller size. volume.

Description of drawings

Accompanying drawing 1 is the expanded perspective view of the present invention;

Accompanying drawing 2 is the expanded plan view of the present invention;

Accompanying drawing 3 is a half-folded perspective view 1 of the present invention;

Accompanying drawing 4 is a half-folded perspective view II of the present invention;

Accompanying drawing 5 is the folding figure of the present invention;

Accompanying drawing 6 is the exploded view of rear wheel bracket connector and bottom support seat;

Accompanying drawing 7 is the expanded front view of the present invention;

Accompanying drawing 8 is the sectional view of the A-A direction of accompanying drawing 7;

Accompanying drawing 9 is the sectional view of the B-B direction of accompanying drawing 2;

Among them: 1. Cart frame; 2. Front wheel assembly; 3. Rear wheel assembly; 4. Front wheel support; 5. Rear wheel support; 6. Push down lever; 7. Push up lever; 8. Bottom Bracket; 9. Rear wheel bracket connector; 10. Spiral groove; 11. Protrusion; 12. Seat bracket; 13. Cross brace; 14. Footboard; 15. Side plate; 16. Side bracket; ; 18, locking pin; 19, locking pin spring; 20, locking pin sliding groove; 21, locking pin button; 22, deadbolt; 23, deadbolt spring; 24, deadbolt locking groove; 25, deadbolt operating part; 26. Guide groove of operating part; 27. Locking groove of locking pin;

Detailed ways

As shown in accompanying drawing 1-accompanying drawing 5, a kind of stroller comprises stroller frame 1, front wheel assembly 2, rear wheel assembly 3, described stroller frame 1 includes front wheel support 4, is located at The side brackets 16 on both sides of the front wheel bracket 4, the side brackets 16 on each side include a rear wheel bracket 5 and a push-down handle bar 6, and the front wheel assembly 2 is arranged on the front wheel bracket 4. The rear wheel assembly 3 is arranged on the rear wheel bracket 5 .

As shown in accompanying drawing 1-accompanying drawing 8, described side support 16 also comprises rear wheel support connector 9, and described rear wheel support connector 9 is rotationally connected with the end of described rear wheel support 5 , A position locking mechanism is provided between the rear wheel bracket 5 and the rear wheel bracket connector 9 . As shown in accompanying drawing 8, the position locking mechanism between the rear wheel bracket 5 and the rear wheel bracket connector 9 includes a locking pin 18 that is slidably arranged on the rear wheel bracket 5, and is opened in the rear wheel bracket. The lock pin lock groove 27 on the connector 9, the lock pin spring 19 is arranged between the lock pin 18 and the rear wheel bracket 5, when the rear wheel bracket 5 is expanded relative to the rear wheel bracket connector 9 , the locking pin 18 is inserted into the locking pin slot 27 .

The rear portion of the front wheel support 4, the bottom of the push-down bar 6, and one of the three components of the rear wheel support connector 9 are rotatably connected with the other two components. In the embodiment shown in this drawing, the rear wheel bracket connector 9 is rotationally connected to the lower part of the push-down handle bar 6, and the rear part of the front wheel bracket 4 is connected to the lower The lower part of the push handle bar 6 is rotatably connected, and the axis line of the said rear wheel support connecting piece 9 and the rotation shaft of the said push down handle bar 6 extends substantially along the horizontal direction. As shown in accompanying drawing 2 and accompanying drawing 6, the lower part of described push-down bar 6 is fixed with bottom support 8, and described bottom support 8 has socket 17, and described rear wheel bracket connector 9 It is rotatably inserted into the socket 17 , and the rear wheel support connecting member 9 is slidably arranged relative to the bottom support 8 along the axis of the rotating shaft between the two. The bottom support 8 has two helical grooves 10 arranged helically along the direction of the rotation axis, the helical directions of the two helical grooves 10 are opposite, and the rear wheel bracket connectors on each side are There are protrusions 11 on the 9, and the protrusions 11 on each side are respectively inserted into the spiral grooves 10 on the corresponding side. When the rear wheel bracket connectors 9 on both sides are rotated and folded relative to the push-down bar 6 , the rear wheel bracket connectors 9 on both sides are displaced toward each other under the action of the two helical grooves 10 .

As shown in accompanying drawing 2, the rear part of described front wheel support 4 is connected with described base support 8 in rotation, and the rear part of front wheel support 4 is connected with the axis of the rotation shaft of described base support 8. Center line, described rear wheel support connector 9 coincides with the axis line of the rotating shaft of described bottom support 8. The rear portion of the front wheel bracket 4 is a connecting sleeve, and the connecting sleeve is rotatably sleeved on the bottom support 8 . A position locking device is arranged between the rear portion of the front wheel bracket 4 and the lower portion of the push-down handle bar 6 . As shown in accompanying drawing 9, the position locking device between the front wheel bracket 4 and the push-down handle bar 6 includes a dead bolt 22 which is slidably arranged at the rear of the front wheel bracket 4, and is opened on the push-down handle. The deadbolt locking groove 24 on the bottom bracket 8 of the rod 6, a deadbolt spring 23 is arranged between the deadbolt 22 and the rear part of the front wheel bracket 4, when the front wheel bracket 4 is opposite When the push-down lever 6 is unfolded, the dead bolt 22 is inserted into the dead bolt locking groove 24 .

As shown in accompanying drawing 1-accompanying drawing 5, described rear wheel support connector 9 has seat support 12, and described seat support 12 is provided with seat.

As shown in accompanying drawing 1 and accompanying drawing 3, described push down handle bar 6 is provided with push up handle bar 7 slidingly. The user can adjust the height of the push-up handle bar 7 according to needs, and the push-up handle bar 7 does not affect the folded volume of the stroller. The push-up handle 7 is also rotatably arranged on the push-down handle 6 .

As shown in accompanying drawing 4 and accompanying drawing 7, described front wheel bracket 4 is provided with running board 14 slidingly along its length direction. As shown in accompanying drawings 1 to 5, the push-down lever 6 is rotatably provided with a side plate 15 .

The rear part of the front wheel support 4, the bottom of the push-down handle bar 6, and the rotational connection relationship between the three parts of the rear wheel support connector 9 can also be: the rear part of the front wheel support 4 and the push-down handle bar The bottom of 6 is rotatably connected, and the rear part of described front wheel support 4 is rotatably connected with described rear wheel support connector 9.

Claims (8)

1. doll carriage, comprise go-cart vehicle frame (1), front component (2), wheel assembly (3), described go-cart vehicle frame (1) comprises front-wheel support (4), be positioned at the side stand (16) of described front-wheel support (4) both sides, the side stand of every side (16) comprises rear wheel support (5), push-down handle bar (6), described front component (2) is arranged on the described front-wheel support (4), described wheel assembly (3) is arranged on the end of described rear wheel support (5), it is characterized in that: described side stand (16) also comprises rear wheel support attaching parts (9), described rear wheel support attaching parts (9) is connected rotatedly with the other end of described rear wheel support (5), the rear portion of described front-wheel support (4), the bottom of push-down handle bar (6), parts in (9) three parts of rear wheel support attaching parts rotate with two other parts and are connected.

2. doll carriage according to claim 1, it is characterized in that: described rear wheel support attaching parts (9) is connected rotatedly with the bottom of described push-down handle bar (6), the rear portion of described front-wheel support (4) is connected rotatedly with the bottom of described push-down handle bar (6), and the axial line of the turning cylinder of described rear wheel support attaching parts (9) and described push-down handle bar (6) along continuous straight runs haply extends.

3. doll carriage according to claim 2, it is characterized in that: the bottom of described push-down handle bar (6) is fixed with bottom bracing base (8), has jack (17) on the described bottom bracing base (8), described rear wheel support attaching parts (9) is inserted in the described jack (17) rotationally, and described rear wheel support attaching parts (9) is provided with slidably with respect to the direction of axis line of described bottom bracing base (8) along between the two turning cylinder.

4. doll carriage according to claim 3, it is characterized in that: have two plug helixs (10) that are provided with along described rotating shaft direction spiral on the described bottom bracing base (8), the hand of spiral of described two plug helixs (10) is opposite, all have projection (11) on the rear wheel support attaching parts (9) of described every side, the projection of described every side (11) is inserted in respectively in the plug helix (10) of respective side.

5. doll carriage according to claim 3, it is characterized in that: the rear portion of described front-wheel support (4) is connected rotatedly with described bottom bracing base (8), and the axial line of the turning cylinder of the rear portion of front-wheel support (4) and described bottom bracing base (8), described rear wheel support attaching parts (9) coincide with the axial line of the turning cylinder of described bottom bracing base (8).

6. doll carriage according to claim 2 is characterized in that: be provided with position local device between the bottom of the rear portion of described front-wheel support (4) and described push-down handle bar (6).

7. doll carriage according to claim 1 is characterized in that: be provided with position locking mechanism between described rear wheel support (5) and the described rear wheel support attaching parts (9).

8. doll carriage according to claim 1 is characterized in that: have seat support (12) on the described rear wheel support attaching parts (9), described seat support (12) is provided with the seat.

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