CN102616264B - Baby stroller - Google Patents

Abstract

A stroller for children, the stroller frame includes a front bracket, a push rod frame slidably connected with the front bracket, a rear bracket, a pulling rod assembly that is rotatably arranged at the front part and the lower part of the push rod frame, and the rear bracket It includes a first bracket, a second bracket that is rotatably connected to the first bracket through a third rotating shaft, the first bracket or the second bracket and the front bracket can be arranged to rotate in two intersecting plane directions, and the pull rod assembly The rear part of the rear bracket is rotatably arranged with the rear bracket. The front wheel assembly is arranged on the front part of the front bracket, the first rear wheel assembly is arranged on the rear part of the first bracket, and the second rear wheel assembly is arranged on the rear part of the second bracket. When the locking device is unlocked, push the push rod frame forward and downward, the pull rod assembly moves forward and downward together with the push rod frame, and pulls the rear bracket to move closer to the front bracket, and the first bracket and the second bracket of the rear bracket They can rotate around the third rotating shaft so as to move closer to each other, that is, the rear frame is folded horizontally, the cart frame is folded, and the folded volume is small.

Description

a stroller for children

technical field

The invention relates to a stroller for children.

Background technique

A child stroller in the prior art includes a stroller frame with an unfolded position and a folded position, a front wheel assembly, a first rear wheel assembly, a second rear wheel assembly, and is used to place the stroller frame The locking device locked in the unfolded position, and the human body support device arranged on the cart frame and capable of supporting the human body. There are many types of existing trolley frames, the number of rods of the cart frame is different, and the connection relationship and connection position between the rods are different, so the folding principles and folding methods are different.

Contents of the invention

The technical problem to be solved by the present invention is to provide a stroller for children.

In order to solve the above technical problems, a technical solution adopted by the present invention is: a children's stroller, including a stroller frame with an unfolded position and a folded position, a front wheel assembly, a first rear wheel assembly, and a second rear wheel assembly . A locking device for locking the cart frame in the unfolded position, a human support device capable of supporting the human body provided on the cart frame, and the cart frame includes:

Front bracket, the front wheel assembly is arranged on the front part of the front bracket;

a push rod frame, the push rod frame is connected to the front bracket in a sliding manner;

The rear bracket, the rear bracket includes a first bracket, a second bracket that is rotatably connected with the first bracket through a third rotating shaft, and the first bracket or the second bracket is connected to the The front bracket can be arranged to rotate in two intersecting plane directions, the first rear wheel assembly is arranged at the rear of the first bracket, and the second rear wheel assembly is arranged at the first the rear of the second bracket;

The pulling rod assembly, the front part of the pulling rod assembly is set in rotation with the lower part of the push rod frame, the rear part of the pulling rod assembly is set in rotation with the rear bracket,

The first bracket or the second bracket is pivotally connected with a swivel joint through the third rotating shaft, and the swivel joint and the first bracket extend along the left-right direction through the axis line. A rotating shaft is rotatably connected, and the third rotating shaft is vertical to the first rotating shaft in space.

In some embodiments, the pull rod assembly includes a first cross brace joint that is rotatably connected to the fourth shaft that extends along the left-right direction through the axis line of the first bracket, and the first bracket joint that is connected to the The second bracket is rotatably connected to the second cross brace joint, the cross brace that can be folded horizontally, the front part and the lower part of the push rod frame that are rotatably arranged through the fifth rotating shaft that the axis line extends along the left and right direction. The connecting rod, the cross brace is arranged between the first cross brace joint and the second cross brace joint, and the rear part of the connecting rod is set in rotation with the cross brace.

In some further embodiments, the front part of the connecting rod is pivotally connected to the lower part of the push rod frame through the second rotating shaft extending along the left-right direction of the axis line.

In some still further embodiments, the cross brace includes a first strut that is rotatably connected to the first cross brace joint at one end through a sixth rotating shaft, and a first strut that is connected to the second cross brace at one end. The joint is rotatably connected to the second strut through the seventh rotating shaft, and the rear part of the connecting rod is rotatably connected to the cross brace through the eighth rotating shaft.

Wherein, the sixth rotation axis, the seventh rotation axis and the eighth rotation axis are parallel to each other.

Preferably, the other end of the first strut, the other end of the second strut and the rear of the connecting rod are rotatably connected through the eighth shaft.

In some embodiments, the pulling rod assembly includes a first pulling rod whose front part is rotatable with the lower part of the push rod frame, and whose front part is rotatable with the lower part of the push rod frame. The second pulling rod, the rear part of the first pulling rod is set to rotate with the first bracket, and the rear part of the second pulling rod is rotated with the second bracket ground setting.

In some further embodiments, the front part of the first pulling rod is rotatably connected to the lower part of the push rod frame through the eleventh rotating shaft, and the rear part of the first pulling rod is connected to the The first bracket is rotationally connected through the thirteenth rotating shaft, the front part of the second pulling rod is rotationally connected with the lower part of the push rod frame through the twelfth rotating shaft, and the first The rear parts of the two pull rods are rotatably connected with the second bracket through the fourteenth rotating shaft.

In some still further embodiments, the eleventh axis of rotation is parallel to the thirteenth axis of rotation, the twelfth axis of rotation is parallel to the fourteenth axis of rotation, and the axis of rotation The eleventh rotation axis is perpendicular to the first plane, and the twelfth rotation axis is perpendicular to the second plane, the first plane intersects the second plane, and the first plane and the second plane intersect. The intersection of the second plane is located on the symmetrical plane of the child stroller in the left and right directions.

In some embodiments, the locking device is disposed between the push rod frame and the front bracket.

In some embodiments, the third rotating shaft is located below the push rod frame.

The orientation words such as upper, lower, front and rear involved above are defined when the cart frame is in the unfolded position, and the position of the front wheel assembly is the front.

The scope of the present invention is not limited to technical solutions formed by a specific combination of the above technical features, but also covers other technical solutions formed by any combination of the above technical features or equivalent features. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

Due to the application of the above technical solutions, the present invention has the following advantages compared with the prior art: when the locking device is unlocked, the push rod frame is pushed forward and downward, and the pull rod assembly moves forward and downward together with the push rod frame, pulling The rod assembly pulls the rear bracket to move closer to the front bracket, and the first bracket and the second bracket of the rear bracket can rotate around the third rotating shaft to move closer to each other. Small.

Description of drawings

Accompanying drawing 1 is the three-dimensional view one (embodiment one) of the pushcart frame in the unfolded position;

Accompanying drawing 2 is the stereogram two (embodiment 1) of the pushcart frame in the deployed position;

Accompanying drawing 3 is the three-dimensional view (embodiment 1) of the pushcart frame in the conversion process between the unfolded position and the folded position;

Accompanying drawing 4 is the perspective view of the cart frame in the folded position (embodiment 1);

Accompanying drawing 5 is the stereogram 1 (embodiment 2) of the pushcart frame in the unfolded position;

Accompanying drawing 6 is the three-dimensional view (embodiment 2) of the stroller frame in the conversion process between the unfolded position and the folded position;

Among them: 1. Cart frame; 2. Front wheel assembly; 3. The first rear wheel assembly; 4. The second rear wheel assembly; 5. Front support; 6. Push rod frame; 7. Rear support; 8. The second 1st bracket; 9, second bracket; 10, rotating joint; 11, connecting rod; 12, first cross brace joint; 13, second cross brace joint; 14, cross brace; 15, first strut; 16, second cross brace Two struts; 21, the first shaft; 22, the second shaft; 23, the third shaft; 24, the fourth shaft; 26, the sixth shaft; 7, the seventh shaft; 28, the eighth shaft; 31, the first Pulling rod; 32, the second pulling rod; 33, the eleventh rotating shaft; 35, the thirteenth rotating shaft; 36, the fourteenth rotating shaft.

Detailed ways

Embodiment 1: As shown in accompanying drawings 1 to 4, a children's stroller includes a stroller frame 1 with an unfolded position and a folded position, a front wheel assembly 2, a first rear wheel assembly 3, and a second rear wheel assembly. The wheel assembly 4, the locking device for locking the stroller frame 1 in the unfolded position, and the human body supporting device arranged on the stroller frame 1 and capable of supporting the human body. The human body support device is not shown in the figure. The human body support device can be a child's seat, a child's sleeping basket, a child's car seat, etc. The installation method can be fixed or disassembled. The human support device can be arranged on the front bracket 5 mentioned below, or on the front part of the rear bracket 7 .

Cart frame 1 includes:

Front support 5, front wheel assembly 2 is arranged on the front part of front support 5;

The push rod frame 6, the push rod frame 6 and the front bracket 5 are respectively connected to slide up and down along the length direction;

Rear support 7, rear support 7 comprises first support 8, the second support 9 that is connected with first support 8 by the 3rd rotating shaft 23 rotatably, first support 8 or second support 9 and front support 5 can be in two Arranged to rotate in the direction of the intersecting planes, the first rear wheel assembly 3 is arranged at the rear of the first bracket 8, and the second rear wheel assembly 4 is arranged at the rear of the second bracket 9;

As for the pulling rod assembly, the front part of the pulling rod assembly is arranged to rotate with the lower part of the push rod frame 6 , and the rear part of the pulling rod assembly is arranged to rotate with the rear bracket 7 .

As shown in accompanying drawings 1-3, regarding the connection between the rear support 7 and the front support 5, the first support 8 or the second support 9 is pivotally connected with a swivel joint 10 through the third rotating shaft 23, The swivel joint 10 is rotatably connected to the front support 5 through a first rotating shaft 21 extending along the left-right direction. The third rotation axis 23 is vertical to the first rotation axis 21 . The swivel joint 10 can be replaced by a ball joint. The third rotating shaft 23 is located below the push rod frame 6 .

With regard to the connection structure of the pull rod assembly, in this embodiment, the pull rod assembly includes a first cross brace joint 12 that is rotatably connected to the fourth rotating shaft 24 that extends along the left and right directions of the first bracket 8 through the axis line, The second cross brace joint 13, the cross brace 14 that can be folded horizontally, the front part and the lower part of the push rod frame 6 through the shaft center and the second cross brace joint 13 that is rotationally connected with the second bracket 9 along the fifth rotating shaft extending in the left and right direction through the axis line The connecting rod 11 is arranged rotatably along the second rotating shaft 22 extending in the left-right direction. Of course, the same connection mode as the rotary joint 10 can also be used between the front part of the connecting rod 11 and the push rod frame 6 . The cross brace 14 is arranged between the first cross brace joint 12 and the second cross brace joint 13 , and the rear part of the connecting rod 11 is arranged to rotate with the cross brace 14 . In this embodiment, as shown in FIG. 2 , the cross brace 14 includes a first strut 15 rotatably connected to the first cross brace joint 12 at one end through a sixth rotating shaft 26 , and a second cross brace joint 13 at one end. The second strut 16 rotatably connected through the seventh rotating shaft 27 , the other end of the first strut 15 and the other end of the second strut 16 are rotatably connected through the eighth rotating shaft 28 . The sixth rotating shaft 26 , the seventh rotating shaft 27 and the eighth rotating shaft 28 are parallel to each other. The rear part of the connecting rod 11 is rotatably connected with the cross brace 14 through the eighth rotating shaft 28 . Specifically, the rear part of the connecting rod 11 , the other end of the first strut 15 , and the other end of the second strut 16 are coaxially connected by the eighth rotating shaft 28 . Simple structure and good rigidity. According to needs, the structure similar to the rotary joint 10 can also be adopted between the rear part of the connecting rod 11 and the cross brace 14 . When the connecting rod 11 moves forward along with the push rod frame 6, the connecting rod 11 pulls the cross brace 14, impels the cross brace 14 to fold laterally, and at the same time, pulls the entire rear bracket 7 to move closer to the front bracket 5. In addition to being able to be folded horizontally, the cross brace 14 can also rotate around the fourth rotating shaft 24 and the fifth rotating shaft relative to the first bracket 8 and the second bracket 9 . Not shown in the figure, the cross brace 14 may also include a third brace, and the third brace is rotatably connected between the other end of the first brace 15 and the other end of the second brace 16 . Not shown, or the cross brace 14 can also be an X-shaped cross brace with two rods crossed and pivotally connected, such as a first slider on the first cross brace joint 12, and a second cross brace joint 13 on the second cross brace joint 13. The slider, the X-shaped cross brace is arranged between the first cross brace joint 12 , the second cross brace joint 13 , the first slide piece and the second slide piece.

The locking device can be arranged between the push rod frame 6 and the front bracket 5 . The specific structure of the locking device is not the gist of the present invention, as long as the structure that can be locked between two relatively sliding parts is applicable, as sliding or rotating on the push rod frame 6, a dead bolt is set, and a dead bolt is set on the front bracket 5. A lock hole, when the locking device is locked, the lock bolt is inserted into the lock hole.

Embodiment 2, the difference between embodiment 2 and embodiment 1 is that the structure of the pulling rod assembly is different. As shown in accompanying drawings 5 and 6, the pulling rod assembly includes a first pulling rod 31 whose front part is rotated with the lower part of the push rod frame 6, and a first pulling rod 31 whose front part is rotated with the lower part of the push rod frame 6. Two pulling rods 32 , the rear part of the first pulling rod 31 is set to rotate with the first bracket 8 , and the rear part of the second pulling rod 32 is set to rotate with the second bracket 9 . The front part of the first pull rod 31 is rotatably connected with the bottom of the push rod frame 6 through the eleventh rotating shaft 33, and the rear part of the first pull rod 31 is rotatably connected with the first bracket 8 through the thirteenth rotating shaft 35. Connected, the front part of the second pull rod 32 is rotationally connected with the bottom of the push rod frame 6 through the twelfth rotating shaft, and the rear part of the second pulling rod 32 is rotated with the second support 9 through the fourteenth rotating shaft 36 ground connection. The eleventh axis of rotation 33 is parallel to the thirteenth axis of rotation 35, the twelfth axis of rotation is parallel to the fourteenth axis of rotation 36, the plane perpendicular to the eleventh axis of rotation 33 is the first plane, and the plane perpendicular to the twelfth axis of rotation is In the second plane, the first plane intersects with the second plane, and the intersection of the first plane and the second plane is located on a symmetrical plane of the stroller in the left and right directions. In addition to locking between the front bracket 5 and the push rod bracket 6, the locking device also needs to lock between the first bracket 8 and the second bracket 9, so that the two are prohibited from rotating in the unfolded position. The cross brace 14 can be omitted. The structure is simpler.

As mentioned above, we have fully described according to the purpose of the present invention, but the present invention is not limited to the above-mentioned embodiments and implementation methods. Practitioners in the relevant technical fields may make various changes and implementations within the scope permitted by the technical ideas of the present invention.

Claims (11)

1. a children trolley, comprise there is the go-cart vehicle frame (1), front component (2), the first wheel assembly (3), the second wheel assembly (4) of expanded position and folding position, for described go-cart vehicle frame (1) being locked in to blocking device under expanded position, be arranged on described go-cart vehicle frame (1) can support human body personal supporting device, it is characterized in that: described go-cart vehicle frame (1) comprising:

Front frame (5), described front component (2) is arranged at the front portion of described front frame (5);

Push-rod frame (6), described push-rod frame (6) slides up and down to be connected with described front frame (5) mutually;

After poppet (7), the second support (9) that described after poppet (7) comprises the first support (8), is connected rotatedly by the 3rd rotating shaft (23) with described the first support (8), described the first support (8) or described the second support (9) and described front frame (5) can arrange rotatedly on two crossing in-planes, described the first wheel assembly (3) is arranged at the rear portion of described the first support (8), and described the second wheel assembly (4) is arranged at the rear portion of described the second support (9);

Stayed pole assembly, the bottom of the front portion of described stayed pole assembly and described push-rod frame (6) arranges rotatedly, and the rear portion of described stayed pole assembly and described after poppet (7) arrange rotatedly,

Described the first support (8) or described the second support (9) are upper has rotary joint (10) by the 3rd described rotating shaft (23) pivotal joint, described rotary joint (10) is connected rotatedly with the first rotating shaft (21) that described front frame (5) extends along left and right directions by axial line, and the 3rd described rotating shaft (23) is vertical with described the first rotating shaft (21) phase space.

2. a kind of children trolley according to claim 1, it is characterized in that: described stayed pole assembly comprises the first block bridging joint (12) being connected rotatedly along the 4th rotating shaft (24) of left and right directions extension by axial line with described the first support (8), the second block bridging joint (13) that the 5th rotating shaft of extending along left and right directions by axial line with described the second support (9) is connected rotatedly, stull (14) that can be laterally folded, the connecting rod (11) that the bottom of anterior and described push-rod frame (6) arranges rotatedly, between the first block bridging joint (12) described in described stull (14) is arranged at and described the second block bridging joint (13), the rear portion of described connecting rod (11) and described stull (14) arrange rotatedly.

3. a kind of children trolley according to claim 2, is characterized in that: the front portion of described connecting rod (11) is connected with the second rotating shaft (22) phase pivot that extend along left and right directions by axial line the bottom of described push-rod frame (6).

4. a kind of children trolley according to claim 2, it is characterized in that: described stull (14) comprises that an end and described the first block bridging joint (12) rotate the first strut (15) of being connected, an end and described the second block bridging joint (13) by the 7th rotating shaft (27) the second strut (16) being connected that rotates by the 6th rotating shaft (26), and the rear portion of described connecting rod (11) is connected by the 8th rotating shaft (28) rotatedly with described stull (14).

5. a kind of children trolley according to claim 4, is characterized in that: the 6th described rotating shaft (26), the 7th described rotating shaft (27) parallel with the 8th described rotating shaft (28).

6. a kind of children trolley according to claim 4, is characterized in that: the other end of the other end of described the first strut (15), described the second strut (16) is connected by the 8th described rotating shaft (28) rotatedly with the rear portion of described connecting rod (11).

7. a kind of children trolley according to claim 1, it is characterized in that: described stayed pole assembly comprises the bottom of anterior and described push-rod frame (6) rotate second stayed pole (32) of setting of the bottom of the first stayed pole (31) of arranging, anterior and described push-rod frame (6) that rotates, the rear portion of described the first stayed pole (31) and described the first support (8) arrange rotatedly, and the rear portion of described the second stayed pole (32) and described the second support (9) arrange rotatedly.

8. a kind of children trolley according to claim 7, it is characterized in that: the front portion of described the first stayed pole (31) is connected by the 11 rotating shaft (33) rotatedly with the bottom of described push-rod frame (6), the rear portion of described the first stayed pole (31) is connected by the 13 rotating shaft (35) rotatedly with described the first support (8), the front portion of described the second stayed pole (32) is connected by the 12 rotating shaft rotatedly with the bottom of described push-rod frame (6), the rear portion of described the second stayed pole (32) is connected by the 14 rotating shaft (36) rotatedly with described the second support (9).

9. a kind of children trolley according to claim 8, it is characterized in that: the 11 described rotating shaft (33) parallels with the 13 described rotating shaft (35), the 12 described rotating shaft parallels with the 14 described rotating shaft (36), with described the 11 rotating shaft (33) perpendicular be the first plane, with described the 12 rotating shaft perpendicular be the second plane, the first described plane and described the second Plane intersects fork, the children trolley described in the infall of the first described plane and the second described plane is positioned at is on the symmetrical plane of left and right directions.

10. a kind of children trolley according to claim 1, is characterized in that: between the push-rod frame (6) described in described blocking device is arranged at and described front frame (5).

11. a kind of children trolleys according to claim 1, is characterized in that: the 3rd described rotating shaft (23) is positioned at the below of described push-rod frame (6).

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