A baby carriage

Abstract

The present invention discloses a baby carriage, comprising: a frame, on which a frame connecting seat is arranged; a seat assembly, on which a connecting structure is arranged on the seat assembly or the frame connecting seat, and the seat assembly is installed on the frame connecting seat through the connecting structure, and the seat assembly has a first locked state and a first unlocked state, and the seat assembly can be switched from the first locked state to the first unlocked state by controlling the action of the connecting structure, and when the seat assembly is in the first unlocked state, the seat assembly can rotate relative to the frame connecting seat, and the seat assembly can rotate to meet the use requirements of different users.

Description

Technical Field

[0001] The invention relates to a baby carriage and belongs to the technical field of baby carriages. Background Art

[0002] In the related art, baby carriages have become an indispensable product for infants and young children to grow up in. Existing baby carriages generally have a frame and a seat assembly, and the seat assembly is installed on the frame. However, since the seat assembly is fixed, the seat assembly cannot be rotated to make the baby face the user, which cannot meet the use needs of some users.

[0003] Therefore, the present invention is just produced based on the above shortcomings. Summary of the invention

[0004] The present invention aims to solve one of the problems existing in the prior art to at least a certain extent. To this end, the present invention provides a baby carriage whose seat assembly is rotatable to meet the usage requirements of different users.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A baby carriage, comprising:

[0007] A vehicle frame, on which a frame connecting seat is arranged;

[0008] A seat assembly, wherein a connecting structure is provided on the seat assembly or the frame connecting seat, the seat assembly is installed on the frame connecting seat via the connecting structure, the seat assembly has a first locked state and a first unlocked state, and the seat assembly can be switched from the first locked state to the first unlocked state by controlling the action of the connecting structure; when the seat assembly is in the first unlocked state, the seat assembly can rotate relative to the frame connecting seat.

[0009] In some embodiments, the seat assembly includes a seat plate, a seat tube and armrests, wherein linkage mechanisms are respectively arranged on both sides of the seat plate, the rear ends of both sides of the seat tube are respectively connected to the linkage mechanisms, the rear ends of both sides of the armrests are respectively connected to the linkage mechanisms, the armrests have a second locked state and a second unlocked state, and when the seat tube is rotated upward at an angle exceeding a first preset threshold, the armrests are switched from the second locked state to the second unlocked state.

[0010] In some embodiments, the linkage mechanism includes a seat joint nut, a seat joint pin, an armrest connecting plate and a gear, wherein the seat joint nut is arranged on the seat plate, the seat joint pin is arranged on the seat joint nut and is connected to the seat tube, the armrest connecting plate is arranged between the seat joint nut and the seat joint pin and is connected to the armrest, the gear is arranged between the seat joint nut and the armrest connecting plate, and the gear, the armrest connecting plate and the seat joint pin cooperate with each other.

[0011] In some embodiments, the linkage mechanism further comprises a spring, the spring is pressed between the gear and the seat joint nut, a center shaft is arranged on the seat joint nut, the gear has a center hole, and the center shaft is passed through the center hole;

[0012] A groove is provided on the side wall of the central hole, the groove has a groove slope, and a convex block is provided on the seat joint male, the convex block extends into the groove and cooperates with the groove slope;

[0013] A connecting block is arranged on the gear, a connecting hole is opened on the armrest connecting piece, and the connecting block extends into the connecting hole to connect the gear and the armrest connecting piece together.

[0014] In some embodiments, the seat assembly also includes a backrest tube, and the lower ends of both sides of the backrest tube are respectively connected to the linkage mechanism. When the forward rotation angle of the backrest tube exceeds a second preset threshold, the armrest switches from the second locked state to the second unlocked state.

[0015] In some embodiments, a backrest connecting seat is respectively provided at the lower ends of both sides of the backrest tube, the backrest connecting seat includes a circular ring and a connecting arm arranged on the circular ring, the connecting arm is connected to the lower end of the backrest tube, an annular boss is provided on the seat joint nut, the circular ring is sleeved on the outside of the annular boss, an adjustment block is provided on the backrest connecting seat, a spring is provided between the adjustment block and the backrest connecting seat, a plurality of adjustment grooves distributed at intervals are provided on the annular boss, a backrest buckle is provided on the backrest tube, the backrest buckle is connected to the adjustment block, and the movement of the adjustment block is controlled by the backrest buckle so that the adjustment block can be inserted into different adjustment grooves.

[0016] In some embodiments, the linkage mechanism further comprises a sliding sheet, the sliding sheet is arranged between the armrest connecting sheet and the gear, the sliding sheet has an arc-shaped protrusion, a sliding block is arranged on the circular ring, and the sliding block cooperates with the arc-shaped protrusion;

[0017] A slot is provided on the gear, the slot has a slot slope, a block is provided on the sliding sheet, the block has a block slope, the block extends into the slot and the block slope matches the slot slope.

[0018] In some embodiments, a locking mechanism is further included, and two sides of the seat tube are detachably connected to the seat plate through the locking mechanism.

[0019] In some embodiments, the locking mechanism includes a clip or a bayonet provided on the seat tube, and a bayonet or a clip provided on the seat plate.

[0020] In some embodiments, the connecting structure includes a rotating shaft arranged at the bottom of the seat assembly and a connecting plate movably arranged on the frame connecting seat, an annular groove is provided on the rotating shaft, a through hole is provided on the frame connecting seat, and a connecting port is provided on the connecting plate, the lower end of the rotating shaft is inserted into the connecting port through the through hole, and the inner side wall of the connecting port cooperates with the annular groove.

[0021] Compared with the prior art, the present invention has at least the following effects:

[0022] 1. In the baby stroller of the present invention, when the seat assembly is in the first unlocked state, the seat assembly can rotate relative to the frame connecting seat to meet the usage requirements of different users. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional schematic diagram of a baby carriage provided by an embodiment of the present invention;

[0024] Figure 2 is another three-dimensional schematic diagram of a baby carriage provided by an embodiment of the present invention;

[0025] Figure 3 is a first exploded schematic diagram of a seat assembly provided by an embodiment of the present invention;

[0026] Figure 4 is a second exploded schematic diagram of a seat assembly provided by an embodiment of the present invention;

[0027] Figure 5 is a third exploded schematic diagram of a seat assembly provided by an embodiment of the present invention;

[0028] Figure 6 is a fourth exploded schematic diagram of a seat assembly provided by an embodiment of the present invention;

[0029] Figure 7 is a three-dimensional schematic diagram of a baby carriage after being turned over according to an embodiment of the present invention;

[0030] Figure 8 yes Figure 7 A partial enlarged view of part A;

[0031] Fig. 9 is a three-dimensional schematic diagram of a baby carriage provided by an embodiment of the present invention installed on a baby crib;

[0032] Fig.10 It is a schematic diagram of a folded state of a baby carriage provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] Embodiment 1: Figures 1 to 8 As shown, this embodiment provides a baby carriage, comprising:

[0035] A frame 1, on which a frame connection seat 2 is arranged. Specifically, the frame connection seat 2 is arranged at a middle position of the frame 1;

[0036] A seat assembly 3, wherein a connecting structure is provided on the seat assembly 3 or the frame connecting seat 2, wherein the seat assembly 3 is installed on the frame connecting seat 2 via the connecting structure, wherein the seat assembly 3 has a first locked state and a first unlocked state, wherein the seat assembly 3 can be switched from the first locked state to the first unlocked state by controlling the action of the connecting structure, wherein when the seat assembly 3 is in the first unlocked state, the seat assembly 3 can rotate relative to the frame connecting seat 2, and wherein when the seat assembly 3 is in the first locked state, the seat assembly 3 is fixed.

[0037] In the baby stroller of this embodiment, when the seat assembly 3 is in the first unlocked state, the seat assembly 3 can be rotated relative to the frame connecting seat 2 to meet the usage requirements of different users. In particular, the seat assembly 3 can be rotated so that the baby is facing the user, so that the baby is always within the user's line of sight, thereby improving safety of use.

[0038] Furthermore, the seat assembly 3 includes a seat plate 31, a seat tube 32 and an armrest 33, wherein a linkage mechanism 4 is respectively arranged on both sides of the seat plate 31, the rear ends of the seat tube 32 are respectively connected to the linkage mechanism 4, the rear ends of the armrest 33 are respectively connected to the linkage mechanism 4, and the armrest 33 has a second locked state and a second unlocked state. When the seat tube 32 is rotated upward at an angle exceeding a first preset threshold, the armrest 33 switches from the second locked state to the second unlocked state. The second locked state means that the armrest 3 is tilted forward and fixed, and the second unlocked state means that the armrest 3 can be rotated forward or backward to be folded, thereby folding the seat assembly 3 to provide space for the rotation of the seat assembly 3.

[0039] Furthermore, the linkage mechanism 4 includes a seat joint nut 41, a seat joint male 42, an armrest connecting piece 43 and a gear 44, wherein the seat joint nut 41 is arranged on the seat plate 31, the seat joint male 42 is arranged on the seat joint nut 41 and connected to the seat tube 32, the armrest connecting piece 43 is arranged between the seat joint nut 41 and the seat joint male 42 and connected to the armrest 33, the gear 44 is arranged between the seat joint nut 41 and the armrest connecting piece 43, and the gear 44, the armrest connecting piece 43 and the seat joint male 42 cooperate. The armrest 33 has a second locked state and a second unlocked state through the coordinated action of the gear 44, the armrest connecting piece 43 and the seat joint male 42, and has a simple structure, a clever and reasonable design, and high reliability in use.

[0040] Specifically, the linkage mechanism 4 further includes a spring, which is pressed between the gear 44 and the seat joint nut 41, and the spring is provided to provide power for the reset of the gear 44. A central shaft 410 is provided on the seat joint nut 41, and the gear 44 has a central hole 440. The central shaft 410 is inserted into the central hole 440, and the gear 44 can rotate around the central shaft 410.

[0041] A groove 441 is provided on the side wall of the center hole 440, and the groove 441 has a groove slope 442. A convex block 421 is provided on the seat joint male 42, and the convex block 421 extends into the groove 441 and cooperates with the groove slope 442. In this embodiment, when the seat joint male 42 rotates to drive the convex block 421 to rotate, the convex block 421 cooperates with the groove slope 442 to push the gear 44 toward the seat joint female 41;

[0042] A connecting block 443 is provided on the gear 44 , and a connecting hole 431 is opened on the armrest connecting piece 43 . The connecting block 443 extends into the connecting hole 431 to connect the gear 44 and the armrest connecting piece 43 together.

[0043] In this embodiment, the linkage mechanism 4 is reasonably and ingeniously designed and reliable to use. Specifically, under normal circumstances, due to the cooperation of various parts inside the linkage mechanism 4, the armrest 33 is tilted forward and fixed, that is, it is in the second locked state. When the seat tube 32 is rotated upward, the seat tube 32 drives the seat joint male 42 to rotate, and at the same time, the seat joint male 42 rotates and drives the protrusion 421 to rotate. The protrusion 421 cooperates with the groove slope 442 to push the gear 44 toward the seat joint female 41. Finally, when the connecting block 443 on the gear 44 is separated from the connecting hole 431 on the armrest connecting plate 43, the armrest 33 is switched from the second locked state to the second unlocked state. When the seat tube 32 stops rotating, the gear 44 moves toward the armrest connecting plate 43 due to the elastic force of the spring. Finally, when the connecting block 443 on the gear 44 is inserted into the connecting hole 431 on the armrest connecting plate 43, the armrest 33 is switched from the second unlocked state to the second locked state.

[0044] Furthermore, the seat assembly 3 also includes a backrest tube 34, and the lower ends of both sides of the backrest tube 34 are respectively connected to the linkage mechanism 4. When the forward rotation angle of the backrest tube 34 exceeds a second preset threshold, the armrest 33 switches from a second locked state to a second unlocked state. The structure is simple, and the volume of the seat assembly 3 can be further reduced by the forward rotation and folding of the backrest tube 34 to provide space for the rotation of the seat assembly 3.

[0045] Furthermore, a backrest connecting seat 35 is respectively provided at the lower ends of both sides of the backrest tube 34, the backrest connecting seat 35 includes a circular ring 351 and a connecting arm 352 arranged on the circular ring 351, the connecting arm 352 is connected to the lower end of the backrest tube 34, an annular boss 411 is provided on the seat joint nut 41, the circular ring 351 is sleeved on the outside of the annular boss 411, an adjusting block 353 is provided on the backrest connecting seat 35, a spring is provided between the adjusting block 353 and the backrest connecting seat 35, a plurality of adjustment grooves 4110 distributed at intervals are provided on the annular boss 411, a backrest buckle 354 is provided on the backrest tube 34, the backrest buckle 354 is connected to the adjusting block 353, the adjustment block 353 is controlled by the backrest buckle 354 to be inserted into different adjustment grooves 4110, so that the inclination angle of the backrest tube 34 can be adjusted. When in use, press the backrest buckle 354, which pulls the adjustment block 353 to disengage the adjustment block 353 from the current adjustment slot 4110, and then adjust the inclination angle of the backrest tube 34. When the inclination angle of the backrest tube 34 is adjusted to a suitable level, release the backrest buckle 354. Due to the elastic force of the spring, the spring pushes the adjustment block 353 to be inserted into the corresponding adjustment slot 4110, thereby fixing the backrest tube 34 and realizing the connection between the backrest tube 34 and the linkage mechanism 4.

[0046] Furthermore, the linkage mechanism 4 further includes a sliding sheet 45, the sliding sheet 45 is disposed between the armrest connecting sheet 43 and the gear 44, the sliding sheet 45 has an arc-shaped protrusion 450, a sliding block 46 is disposed on the ring 351, and the sliding block 46 cooperates with the arc-shaped protrusion 450;

[0047] A slot 444 is provided on the gear 44 , and the slot 444 has a slot slope 445 . A block 451 is provided on the sliding sheet 45 , and the block 451 has a block slope 452 . The block 451 extends into the slot 444 and the block slope 452 cooperates with the slot slope 445 .

[0048] In this embodiment, the linkage mechanism 4 is reasonably and ingeniously designed and reliable to use. Specifically, under normal circumstances, due to the cooperation of various parts inside the linkage mechanism 4, the armrest 33 is tilted forward and fixed, that is, it is in the second locking state. When the backrest tube 34 is rotated forward, the backrest tube 34 drives the backrest connecting seat 35 to rotate, and at the same time, the rotation of the backrest connecting seat 35 drives the sliding block 46 to rotate. Since the sliding block 46 cooperates with the arc-shaped protrusion 450, the sliding block 46 will push the sliding plate 45 to move upward when it rotates. When the sliding plate 45 moves upward, the gear 44 can be pushed toward the seat joint nut 41 due to the cooperation of the block inclined surface 452 and the slot inclined surface 445. Finally, when the connecting block 443 on the gear 44 is disengaged from the connecting hole 431 on the armrest connecting plate 43, the armrest 33 is switched from the second locking state to the second unlocking state. When the rotation of the backrest tube 34 stops, the gear 44 moves toward the armrest connecting piece 43 due to the elastic force of the spring of the linkage mechanism 4. Finally, when the connecting block 443 on the gear 44 is inserted into the connecting hole 431 on the armrest connecting piece 43, the armrest 33 switches from the second unlocked state to the second locked state.

[0049] Preferably, a locking mechanism 5 is further included, and both sides of the seat tube 32 are detachably connected to the seat plate 31 through the locking mechanism 5. The locking mechanism 5 can improve the safety of the baby carriage. Specifically, when the locking mechanism 5 is not opened, the seat tube 32 cannot rotate upward.

[0050] Furthermore, the locking mechanism 5 includes a clamp 51 or a bayonet provided on the seat tube 32, and a bayonet 52 or a clamp provided on the seat plate 31, and has a simple structure, a reasonable and ingenious design, and high reliability in use. Generally, the locking mechanism 5 is in a locked state, that is, the seat tube 32 cannot be rotated upward. In this embodiment, when the seat tube 32 is pulled forward, the locking mechanism 5 is unlocked, and the clamp 51 or the bayonet on the seat tube 32 is disengaged from the bayonet 52 or the clamp on the seat plate 31, thereby allowing the seat tube 32 to be rotated upward. Of course, the locking mechanism 5 can adopt other specific structural forms, which are not limited here, as long as the purpose of detachable connection between the seat tube 32 and the seat plate 31 and improving the safety of use can be achieved.

[0051] Specifically, the connection structure includes a rotating shaft 61 disposed at the bottom of the seat assembly 3 and a connecting plate 62 movably disposed on the frame connecting seat 2. An annular groove 610 is provided on the rotating shaft 61, a through hole 200 is provided on the frame connecting seat 2, and a connecting port 620 is provided on the connecting plate 62. The lower end of the rotating shaft 61 is inserted into the connecting port 620 through the through hole 200, and the inner side wall of the connecting port 620 cooperates with the annular groove 610. In this embodiment, a reset element is provided between the connecting plate 62 and the frame connecting seat 2. Generally, due to the action of the reset element, the inner side wall of the connecting port 620 is clamped in the annular groove 610, thereby placing the seat assembly 3 in the first locked state, that is, the seat assembly 3 is fixed. When the connecting plate 62 is controlled to overcome the action of the reset element so that the inner side wall of the connecting port 620 is separated from the annular groove 610, the seat assembly 3 is switched from the first locked state to the first unlocked state, that is, the seat assembly 3 can rotate relative to the frame connecting seat 2. Of course, the connection structure can adopt other specific structures, which are not limited here, as long as the purpose of connection, locking and unlocking between the seat assembly 3 and the frame connecting seat 2 can be achieved. In addition, the seat tube 32 can be linked with the connection structure, and the rotation of the seat tube 32 can drive the opening and closing of the connection structure.

[0052] See Fig. 9 As shown, the seat assembly 3 can be removed from the frame connection seat 2 and installed with the crib 7, thereby meeting the use needs of different users. Of course, a fixing structure can be designed to fix the crib 7. When the crib 7 is installed on the frame connection seat 2, the fixing structure connects the crib 7 and the frame connection seat 2 to fix the crib 7.

[0053] See Fig.10 As shown, the baby stroller of this embodiment has an unfolded state and a folded state. When in the folded state, it can be compact, occupy a small space, and is easy to carry. In this embodiment, an iron sheet is arranged on the frame 1 to drive the folding and contraction of the entire baby stroller, and its structure is simple and reliable to use.

[0054] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A baby carriage, It is characterized in that include: A vehicle frame, on which a frame connecting seat is arranged; A seat assembly, wherein the seat assembly is mounted on the frame connection seat through a connection structure, the seat assembly has a first locked state and a first unlocked state, and the seat assembly can be switched from the first locked state to the first unlocked state by controlling the action of the connection structure, and when the seat assembly is in the first unlocked state, the seat assembly can rotate relative to the frame connection seat; The seat assembly comprises a seat plate, a seat tube and an armrest, wherein linkage mechanisms are respectively arranged on both sides of the seat plate, and the rear ends of both sides of the seat tube are respectively connected to the linkage mechanisms, and the rear ends of both sides of the armrest are respectively connected to the linkage mechanisms, and the armrest has a second locked state and a second unlocked state, and when the angle of the seat tube rotating upward exceeds a first preset threshold, the armrest switches from the second locked state to the second unlocked state; The linkage mechanism comprises a seat joint nut, a seat joint male, an armrest connecting piece and a gear, wherein the seat joint nut is arranged on the seat plate, the seat joint male is arranged on the seat joint nut and connected to the seat tube, the armrest connecting piece is arranged between the seat joint nut and the seat joint male and connected to the armrest, the gear is arranged between the seat joint nut and the armrest connecting piece, and the gear, the armrest connecting piece and the seat joint male cooperate to act; The linkage mechanism further includes a sliding sheet, which is arranged between the armrest connecting sheet and the gear, and has an arc-shaped protrusion, and a sliding block is arranged on the circular ring, and the sliding block cooperates with the arc-shaped protrusion; A slot is provided on the gear, the slot has a slot slope, a block is provided on the sliding sheet, the block has a block slope, the block extends into the slot and the block slope matches the slot slope; The connection structure comprises a connection plate movably arranged on the frame connection seat, and a reset element is arranged between the connection plate and the frame connection seat; The seat assembly also includes a backrest tube, the lower ends of both sides of the backrest tube are respectively connected to the linkage mechanism, and backrest connecting seats are respectively arranged at the lower ends of both sides of the backrest tube, the backrest connecting seats include a circular ring and a connecting arm arranged on the circular ring, and the connecting arm is connected to the lower end of the backrest tube.

2. A baby carriage according to claim 1, It is characterized in that The linkage mechanism further comprises a spring, the spring being pressed between the gear and the seat joint nut, a center shaft being arranged on the seat joint nut, the gear having a center hole, the center shaft being passed through the center hole; A groove is provided on the side wall of the central hole, the groove has a groove slope, and a convex block is provided on the seat joint male, the convex block extends into the groove and cooperates with the groove slope; A connecting block is arranged on the gear, a connecting hole is opened on the armrest connecting piece, and the connecting block extends into the connecting hole to connect the gear and the armrest connecting piece together.

3. A baby carriage according to claim 2, It is characterized in that When the forward rotation angle of the backrest tube exceeds a second preset threshold, the armrest switches from the second locked state to the second unlocked state.

4. A baby carriage according to claim 2, It is characterized in that An annular boss is arranged on the seat joint nut, the circular ring is arranged on the outside of the annular boss, an adjustment block is arranged on the backrest connecting seat, a spring is arranged between the adjustment block and the backrest connecting seat, a plurality of adjustment grooves distributed at intervals are arranged on the annular boss, a backrest buckle is arranged on the backrest tube, the backrest buckle is connected with the adjustment block, and the movement of the adjustment block is controlled by the backrest buckle so that the adjustment block can be inserted into different adjustment grooves.

5. A baby carriage according to any one of claims 1 to 4, It is characterized in that It also includes a locking mechanism, through which both sides of the seat tube are detachably connected to the seat plate.

6. A baby carriage according to claim 5, It is characterized in that The locking mechanism comprises a clamp or a bayonet arranged on the seat tube, and a bayonet or a clamp arranged on the seat plate.

7. A baby carriage according to any one of claims 1 to 4, It is characterized in that The connecting structure includes a rotating shaft arranged at the bottom of the seat assembly, an annular groove is formed on the rotating shaft, a through hole is formed on the frame connecting seat, and a connecting port is formed on the connecting plate. The lower end of the rotating shaft is inserted into the connecting port through the through hole, and the inner side wall of the connecting port cooperates with the annular groove.

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