A baby carriage is provided in the invention, the frame of the baby carriage comprises a left support frame and a right support frame symmetrical to each other, and a connecting frame connected between the left and right support frames. The left support frame comprises a left front frame, a left rea
A baby carriage is provided in the invention, the frame of the baby carriage comprises a left support frame and a right support frame symmetrical to each other, and a connecting frame connected between the left and right support frames. The left support frame comprises a left front frame, a left rear frame, a left rod, a left connecting rod with a front portion being rotatably connected with the left front frame, a left pull rod rotatably connected with the left rear frame and a left push rod frame rotatably connected with the upper portion of the left rod. The left pull rod is rotatably connected with the rear portion of the left connecting rod and the lower portion of the left push rod frame is rotatably connected with the upper portion of the left pull rod.
대표청구항▼
1. A baby carriage, comprising a folding frame (1), a left front wheel assembly (5), a right front wheel assembly (7), a left rear wheel assembly (6), a right rear wheel assembly (8), a frame locking mechanism for locking the frame (1) when it is in an unlocked position, and a seat disposed on the f
1. A baby carriage, comprising a folding frame (1), a left front wheel assembly (5), a right front wheel assembly (7), a left rear wheel assembly (6), a right rear wheel assembly (8), a frame locking mechanism for locking the frame (1) when it is in an unlocked position, and a seat disposed on the frame (1), the frame (1) comprising a left support frame (2) at the left side thereof, a right support frame (3) at the right side thereof, and a connecting frame (4) connected between the left support frame (2) and the right support frame (3), wherein the left support frame (2) comprises: a left front frame (21) having an upper portion and a lower portion, the left front wheel assembly (5) being arranged on the lower portion of the left front frame (21);a left rear frame (22) having an upper portion and a lower portion, the left rear wheel assembly (6) being arranged on the lower portion of the left rear frame (22);a left rod (23) having an upper portion and a lower portion, the upper portion of the left front frame (21), the upper portion of the left rear frame (22) and the lower portion of the left rod (23) being rotatably connected with each other;a left connecting rod (24) having a front portion and a rear portion, and the front portion of the left connecting rod (24) being rotatably connected with the left front frame (21) by a left third shaft (213);a left pull rod (25) having an upper portion and a lower portion, and the left pull rod (25) being rotatably connected with the left rear frame (22) by a left fourth shaft (214), and the rear portion of the left connecting rod (24) being rotatably connected with the left pull rod (25) by a left fifth shaft (215); anda left push rod frame (26) having an upper portion and a lower portion, the upper portion of the left rod (23) being rotatably connected with the left push rod frame (26) by a left sixth shaft (216), and the lower portion of the left push rod frame (26) being rotatably connected with the upper portion of the left pull rod (25) by a left seventh shaft (217); the right support frame (3) comprising: a right front frame (31) having an upper portion and a lower portion, the right front wheel assembly (7) being arranged on the lower portion of the right front frame (31);a right rear frame (32) having an upper portion and a lower portion, the right rear wheel assembly (8) being arranged on the lower portion of the right rear frame (32);a right rod (33) having an upper portion and a lower portion, the upper portion of the right front frame (31), the upper portion of the right rear frame (32) and the lower portion of the right rod (33) being rotatably connected with each other;a right connecting rod (34) having a front portion and a rear portion, and the front portion of the right connecting rod (34) being rotatably connected with the right front frame (31) by a right third shaft (313);a right pull rod (35) having an upper portion and a lower portion, and the right pull rod (35) being rotatably connected with the right rear frame (32) by a right fourth shaft (314), and the rear portion of the right connecting rod (34) being rotatably connected with the right pull rod (35) by a right fifth shaft (315); anda right push rod frame (36) having an upper portion and a lower portion, the upper portion of the right rod (33) being rotatably connected with the right push rod frame (36) by a right sixth shaft (316), and the lower portion of the right push rod frame (36) being rotatably connected with the upper portion of the right pull rod (35) by a right seventh shaft (317); and the connecting frame (4) comprising: a front transverse rod (41), one end of the front transverse rod (41) being rotatably connected with the left front frame (21) by a left ninth shaft (411), and the other end being rotatably connected with the right front frame (31) by a right ninth shaft (421);a rear transverse rod (42), one end of the rear transverse rod (42) being rotatably connected with the left rear frame (22) by a left tenth shaft (412), and the other end being rotatably connected with the right rear frame (32) by a right tenth shaft (422); andan upper transverse rod (43), one end of the upper transverse rod (43) being rotatably connected with the left push rod frame (26) by a left eleventh shaft (413), and the other end being rotatably connected with the right push rod frame (36) by a right eleventh shaft (423);the portions of the left front frame (21) and the left rod (23) connected with each other respectively extend along an axis, and the portions of the right front frame (31) and the right rod (33) connected with each other respectively extend along an axis, when the frame (1) is in an unfolded state, an angle α in the range of 165°-195° is formed between the axis of the left front frame (21) and the axis of the left rod (23), and an angle α′ in the range of 165°-195° is formed between the axis of the right front frame (31) and the axis of the right rod (33). 2. The baby carriage as claimed in claim 1, wherein when the frame (1) is in a folded state, the shaft axis of the left ninth shaft (411) and the shaft axis of the left tenth shaft (412) are parallel to the shaft axis of the left eleventh shaft (413), and the shaft axis of the right ninth shaft (421) and the shaft axis of the right tenth shaft (422) are parallel to the shaft axis of the right eleventh shaft (423), or alternatively the shaft axis of the left ninth shaft (411) and the shaft axis of the left tenth shaft (412) are collinear with the shaft axis of the left eleventh shaft (413), and the shaft axis of the right ninth shaft (421) and the shaft axis of the right tenth shaft (422) are collinear with the shaft axis of the right eleventh shaft (423). 3. The baby carriage as claimed in claim 1, wherein a first front limiting mechanism is arranged on the corresponding ends of the left front frame (21) and/or the front transverse rod (41) for limiting the unidirectional rotation of the left front frame (21) relative to the front transverse rod (41) when the frame (1) is unfolded, and a second front limiting mechanism being arranged on the corresponding ends of right front frame (31) and/or the front transverse rod (41) for limiting the unidirectional rotation of the right front frame (31) relative to the front transverse rod (41) when the frame (1) is unfolded. 4. The baby carriage as claimed in claim 1, wherein a first rear limiting mechanism is arranged on the corresponding ends of the left rear frame (22) and/or the rear transverse rod (42) for limiting the unidirectional rotation of the left rear frame (22) relative to the rear transverse rod (42) when the frame (1) is unfolded, and a second rear limiting mechanism being arranged on the corresponding ends of right rear frame (32) and/or the rear transverse rod (42) for limiting the unidirectional rotation of the right rear frame (32) relative to the rear transverse rod (42) when the frame (1) is unfolded. 5. The baby carriage as claimed in claim 1, wherein a first upper limiting mechanism is arranged on the corresponding ends of the left push rod frame (26) and/or the upper transverse rod (43) for limiting the unidirectional rotation of the left push rod frame (26) relative to the upper transverse rod (43) when the frame (1) is unfolded, and a second upper limiting mechanism being arranged on the corresponding ends of the right push rod frame (36) and/or the upper transverse rod (43) for limiting the unidirectional rotation of the right push rod frame (36) relative to the upper transverse rod (43) when the frame (1) is unfolded. 6. The baby carriage as claimed in claim 1, wherein the connecting frame (4) also comprises a connecting transverse rod (44), one end of the connecting transverse rod (44) being rotatably connected with the left connecting rod (24) by a left twelfth shaft (414), and the other end being rotatably connected with the right connecting rod (34) by a right twelfth shaft (424), the shaft axis of the left ninth shaft (411), the shaft axis of the left tenth shaft (412) and the shaft axis of the left eleventh shaft (413) being parallel to or collinear with the shaft axis of the left twelfth shaft (414), and the shaft axis of the right ninth shaft (421), the shaft axis of the right tenth shaft (422) and the shaft axis of the right eleventh shaft (423) being parallel to or collinear with the shaft axis of the right twelfth shaft (424). 7. The baby carriage as claimed in claim 4, wherein the corresponding ends of the left connecting rod (24), the right connecting rod (34) and/or the connecting transverse rod (44) respectively are provided with a connecting rod limiting mechanism. 8. The baby carriage as claimed in claim 1, wherein the left front wheel assembly (5) comprises a left front wheel, the left rear wheel assembly (6) comprising: a left rear wheel joint (61) rotatably connected with the lower portion of the left rear frame (22) by a left eighth shaft (218), a left positioning mechanism being arranged on the left rear wheel joint (61) and/or the left rear frame (22) for positioning them when they are unfolded relative to each other; anda left rear wheel (62) rotatably arranged on the left rear wheel joint (61); the right front wheel assembly (7) comprising a right front wheel, the right rear wheel assembly (8) comprising: a right rear wheel joint (81) rotatably connected with the lower portion of the right rear frame (32) by a right eighth shaft (318), a right positioning mechanism being arranged on the right rear wheel joint (81) and/or the right rear frame (32) for positioning them when they are unfolded relative to each other; anda right rear wheel (82) rotatably arranged on the right rear wheel joint (81); when the frame (1) is in the folded state, the wheel shaft of the left rear wheel (62) is located between the left front frame (21) and the left rear frame (22), and the left rear wheel (62) is located above the left front wheel, the wheel shaft of the right rear wheel (82) is located between the right front frame (31) and the right rear frame (32), and the right rear wheel (82) is located above the right front wheel. 9. The baby carriage as claimed in claim 1, wherein the left push rod frame (26) comprises: a left push rod (261) located at a lower portion thereof and rotatably connected with the left rod (23) and the left pull rod (25); anda left push handle (262) slidably disposed on the left push rod (261) along the length direction of the left push rod (261, and a left push rod positioning mechanism being arranged on the left push rod (261) and/or the left push handle (262); the right push rod frame (36) comprising: a right push rod (361) located at a lower portion thereof and rotatably connected with the right rod (33) and the right pull rod (35); anda right push handle (362) slidably disposed on the right push rod (361) along the length direction of the right push rod (361), and a right push rod positioning mechanism being arranged on the right push rod (361) and/or the right push handle (362);the upper transverse rod (43) being rotatably connected between the left push handle (262) and the right push handle (362). 10. The baby carriage as claimed in claim 1, wherein the upper portion of the left front frame (21) is rotatably connected with the upper portion of the left rear frame (22) by a left first shaft (211), the lower portion of the left rod (23) being rotatably connected with the upper portion of the left rear frame (22) by a left second shaft (212), the left first shaft (211) being located below and in front of the left second shaft (212), the upper portion of the right front frame (31) being rotatably connected with the upper portion of the right rear frame (32) by a right first shaft (311), the lower portion of the right rod (33) being rotatably connected with the upper portion of the right rear frame (32) by a right second shaft (312), the right first shaft (311) being located below and in front of the right second shaft (312). 11. The baby carriage as claimed in claim 1, wherein when the frame (1) is in the folded position, the length of the baby carriage is within the range of 250-290 mm, the width of the baby carriage is within the range of 120-150 mm and the height of the baby carriage is within the range of 340-500 mm. 12. The baby carriage as claimed in claim 1, wherein the left fifth shaft (215) is located in front of the left fourth shaft (214), and the right fifth shaft (315) is located in front of the right fourth shaft (314). 13. The baby carriage as claimed in claim 1, wherein the left seventh shaft (217) is located below the left sixth shaft (216), and the right seventh shaft (317) is located below the right sixth shaft (316). 14. The baby carriage as claimed in claim 1, wherein the angle α is in the range of 170°-185°, and correspondingly the angle α′ is in the range of 170°-185°.
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