CN108995702B

CN108995702B - Rotary seat structure and child cart

Info

Publication number: CN108995702B
Application number: CN201811041538.1A
Authority: CN
Inventors: 胡承鹏; 邓征华; 叶建波
Original assignee: Hubei Yangtian Plastic Products Co ltd
Current assignee: Hubei Yangtian Plastic Products Co ltd
Priority date: 2018-09-05
Filing date: 2018-09-05
Publication date: 2024-01-26
Anticipated expiration: 2038-09-05
Also published as: CN108995702A

Abstract

The invention relates to the technical field of carts, in particular to a rotary seat structure and a child cart; the rotary seat structure comprises a right large joint; a right lower socket assembly rotatably connected to the right large joint; a first drive assembly in drive connection with the right lower header assembly; the second transmission assembly is in transmission connection with the first transmission assembly; a ground seat assembly in driving connection with the second drive assembly; the second transmission assembly is configured to drive the seat assembly to rotate in a horizontal direction; the child stroller comprises a left push handle assembly, a right push handle assembly and the rotary seat structure, wherein the right push handle assembly is connected with a right lower tube seat assembly, and the left push handle assembly is connected with the left lower tube seat assembly; the rotary seat structure provided by the invention can flexibly realize rotation, and can flexibly realize rotation of the seat even in a narrow space.

Description

Rotary seat structure and child cart

Technical Field

The invention relates to the technical field of carts, in particular to a rotary seat structure and a child cart.

Background

The baby trolley is a device with more functions when an infant goes out, so that an adult can conveniently and safely go out with the infant, the whole direction or angle of the trolley needs to be rotated when the direction of the child sitting is regulated, the operation is relatively inconvenient, a certain space is needed, and the rotating difficulty is high and even the rotating of the direction is difficult to realize in a place with smaller space.

Disclosure of Invention

The invention aims to provide a rotary seat structure which can flexibly realize rotation and rotation of a seat even in a narrow space.

Another object of the present invention is to provide a child stroller, which can flexibly change the angle of a seat, and can rotate only the angle of the seat without rotating the entire child stroller when rotating the direction of the seat, thereby being not easy to be limited by a space environment, and can flexibly realize the rotation of the seat even in a narrow space.

Embodiments of the present invention are implemented as follows:

a swivel seat structure comprising a right large joint; a right lower socket assembly rotatably connected to the right large joint; a first drive assembly in drive connection with the right lower header assembly; the second transmission assembly is in transmission connection with the first transmission assembly; a ground seat assembly in driving connection with the second drive assembly; the second transmission assembly is configured to drive the seat assembly to rotate in a horizontal direction.

In a preferred embodiment of the invention:

the seat locking device also comprises a left big joint, a left lower tube seat component and a seat locking component, wherein the left big joint is arranged at intervals with the right big joint, the left lower tube seat component is rotatably connected with the left big joint, and the seat locking component is movably connected with the left lower tube seat component; the seat lock assembly is configured to unlock the seat assembly when the left lower header assembly is rotated in a first predetermined direction and to lock the seat assembly when the left lower header assembly is rotated in a second predetermined direction opposite the first predetermined direction.

In a preferred embodiment of the invention:

the seat locking assembly comprises an unlocking pin, a first elastic piece and a shell, wherein the first end of the unlocking pin is detachably inserted into the seat assembly, the first elastic piece is sleeved outside the unlocking pin, the second end of the unlocking pin is slidably inserted into the shell, and the first elastic piece is configured to enable the unlocking pin to move in a direction away from the seat assembly so that the first end of the unlocking pin is separated from the seat assembly.

In a preferred embodiment of the invention:

the rotary seat structure further comprises a fixed pipe, and the seat locking assembly further comprises an unlocking sleeve, a second elastic piece and a connecting plate; the unlocking sleeve is sleeved at the first end of the fixed pipe in a sliding manner, the second elastic piece is sleeved at the fixed pipe, and one end of the second elastic piece is abutted with the unlocking sleeve and configured to enable the unlocking sleeve to have a movement trend towards the left lower pipe seat assembly; the unlocking pipe sleeve is connected with a connecting plate at one end far away from the left lower pipe seat component, the connecting plate is provided with a mounting opening with an opening facing the seat component, and the caliber of the mounting opening gradually decreases from one end close to the seat component to one end far away from the seat component; the first end of the shell is movably abutted against one side wall of the mounting opening, which is close to the left lower tube seat assembly, and the shell can slide towards a direction close to or far away from the seat assembly, and the first elastic piece is configured to drive the first end of the unlocking pin to be separated from the seat assembly when the unlocking tube sleeve moves towards the left lower tube seat assembly and the first end of the shell slides downwards along the side wall of the mounting opening.

In a preferred embodiment of the invention:

the seat locking assembly further comprises a first limiting column, and the first limiting column is connected with the unlocking sleeve; the left lower tube seat assembly comprises a left lower tube seat and a limiting plate, the left lower tube seat is rotatably connected with the left large joint, the limiting plate is arranged on one side, facing the fixed tube, of the left lower tube seat, the limiting plate is provided with a slope surface, and the first limiting column is configured to slide to be abutted with the left lower tube seat along the slope surface when the left lower tube seat rotates along a first preset direction.

In a preferred embodiment of the invention:

the first transmission assembly comprises a connecting pipe and a first transmission gear, the second transmission assembly comprises a rotating shaft and a second transmission gear, the first transmission gear is connected with the connecting pipe, the first transmission gear and the connecting pipe are sleeved at the second end of the fixed pipe together, and the right lower pipe seat assembly is in transmission connection with the connecting pipe; the second transmission gear is fixedly connected with the rotating shaft, the rotating shaft is rotatably inserted into the fixed pipe, one end of the rotating shaft is fixedly connected with the seat assembly, and the second transmission gear is meshed and connected with the first transmission gear.

In a preferred embodiment of the invention:

the right lower tube seat assembly comprises a right lower tube seat, a rotating pin and a third elastic piece, wherein two ends of the third elastic piece are respectively connected with the right lower tube seat and the rotating pin, and the third elastic piece is configured to enable the rotating pin to have a movement trend of moving towards the connecting tube; the first transmission assembly further comprises a connecting ring, the connecting ring is connected with one end of the connecting pipe, which is far away from the first transmission gear, a transmission groove is formed in one side, facing the right lower tube seat, of the connecting ring, the transmission groove is provided with a first end located at the front end of the first preset direction and a second end located at the rear end of the first preset direction along the first preset direction, the depth of the transmission groove is gradually reduced from the first end of the transmission groove to the second end of the transmission groove, and one end, far away from the third elastic piece, of the rotation pin can slide in the transmission groove.

In a preferred embodiment of the invention:

the side wall of the connecting ring is provided with a locking groove, the rotary seat structure further comprises a second limiting column and a fourth elastic piece, two ends of the fourth elastic piece are respectively connected with the second limiting column and the right large joint, and the fourth elastic piece is configured to enable the second limiting column to have a movement trend of moving towards the side wall close to the connecting ring; the locking groove is provided with a first end positioned at the front end in the first preset direction and a second end positioned at the rear end in the preset direction, the depth of the locking groove gradually decreases from the first end of the locking groove to the second end of the locking groove, and one end, far away from the fourth elastic piece, of the second limiting column can slide in the locking groove.

A child stroller comprises a left push handle assembly, a right push handle assembly and the rotary seat structure, wherein the right push handle assembly is connected with a right lower tube seat assembly, and the left push handle assembly is connected with the left lower tube seat assembly.

In a preferred embodiment of the invention:

the child stroller further includes a bottom header locking assembly disposed on the right push handle assembly and configured to lock or unlock the bottom right header assembly.

The rotating seat structure and the child stroller provided by the embodiment of the invention have the beneficial effects that:

The rotary seat structure provided by the embodiment of the invention can rotate the right lower tube seat assembly which is rotationally connected with the right big joint to enable the first transmission assembly to rotate, the rotating first transmission assembly can drive the second transmission assembly which is in transmission connection with the first transmission assembly to rotate, and the second transmission assembly is utilized to drive the seat assembly to rotate in the horizontal direction, so that the seat assembly can rotate in the horizontal direction by rotating the right lower tube seat assembly, the seat assembly can rotate in the horizontal direction without integrally rotating the rotary seat structure in the horizontal direction, and the rotary seat structure is not easy to be influenced by external space environment when rotating in the horizontal direction, and can flexibly realize the rotation of the seat assembly in a narrow space, and the use convenience is improved.

When the child stroller provided by the embodiment of the invention is used, the right push handle assembly and the left push handle assembly can be used for simultaneously driving the right lower tube seat assembly and the left lower tube seat assembly to rotate, so that the first transmission assembly is driven to rotate, and the second transmission assembly is driven to rotate by the first transmission assembly in a rotating way, so that the second transmission assembly drives the seat assembly to rotate in the horizontal direction, and therefore, when the angle of the seat assembly in the horizontal direction needs to be rotated, the whole child stroller does not need to be rotated, but the seat assembly can be independently controlled to rotate in the horizontal direction, the influence of space environment is small during rotation, the child stroller can be flexibly rotated even in a narrow space, and the use convenience is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a rotary seat structure of a stroller in a middle rotation state according to an embodiment of the present invention;

FIG. 2 is an exploded view of a swivel chair according to an embodiment of the invention;

FIG. 3 is a schematic explosion diagram of a swivel chair according to an embodiment of the invention;

FIG. 4 is an enlarged view at IV of FIG. 3;

FIG. 5 is a cross-sectional view of a swivel chair configuration according to an embodiment of the invention;

FIG. 6 is a cross-sectional view of a child stroller in accordance with an embodiment of the present invention in an unrotated position;

FIG. 7 is an enlarged view of the portion VII of FIG. 6;

FIG. 8 is an enlarged view of the portion VIII of FIG. 3;

FIG. 9 is a schematic view of a partial explosion of a swivel chair according to an embodiment of the invention;

FIG. 10 is a partial schematic view of a stroller in accordance with an embodiment of the present invention;

FIG. 11 is an enlarged view of XI in FIG. 10;

fig. 12 is a schematic view of a structure of a rotary seat structure of a stroller rotated 180 ° according to an embodiment of the present invention.

Icon: 010-child cart; 101-left push handle assembly; 102-a right push handle assembly; 100-swivel seat configuration; 110-right large joint; 120-lower right header assembly; 130-a first transmission assembly; 140-a second transmission assembly; 150-left large joint; 160-lower left header assembly; 170-a seat lock assembly; 180-fixing the tube; 171-unlocking the sleeve; 172-unlocking the pin; 173-a first elastic member; 176-a housing; 174-a second elastic member; 175-connecting plates; 177-mounting port; 178-a first limit post; 161-lower left header; 162-limiting plates; 163-ramp surface; 131-connecting pipes; 132—a first transmission gear; 141-a rotation shaft; 142-a second drive gear; 121-lower right tube holder; 122-a rotation pin; 133-connecting rings; 134-a transmission groove; 135-locking groove; 123-a second limit column; 190-a bottom header locking assembly; 201-an upper cover; 202-a lower cover; 203-a first limiting tube; 204-limit protrusions; 205-abutment wall; 206-a first extension tube; 207-a second limiting tube; 208-a third limiting tube; 111-joint body; 112-a second extension tube; 113-a sliding port; 209-a base pipe; 191-fifth elastic member; 192-locking slide; 193-pulling member; 194-sliding sleeve; 211-front connecting rod; 212-a rear connecting rod; 213-a first connecting rod; 214-a second connecting rod; 215-third connecting rod.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the embodiments of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", etc., are based on directions or positional relationships shown in the drawings, or directions or positional relationships in which the inventive product is conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 and 2, the present embodiment provides a rotary seat structure 100 for a stroller 010, wherein the rotary seat structure 100 includes a right large joint 110, a right lower tube seat assembly 120, a first transmission assembly 130, a second transmission assembly 140 and a seat assembly, the right lower tube seat assembly 120 is rotatably connected to the right large joint 110, the first transmission assembly 130 is in transmission connection with the right lower tube seat assembly 120, the second transmission assembly 140 is in transmission connection with the first transmission assembly 130, and the second transmission assembly 140 is in transmission connection with the seat assembly, the second transmission assembly 140 is configured to drive the seat assembly to rotate in a horizontal direction, that is, when the right lower tube seat assembly 120 rotates, the first transmission assembly 130 can drive the second transmission assembly 140 to rotate, so that the seat assembly is driven to rotate in the horizontal direction by the second transmission assembly 140.

Referring to fig. 2, the rotary seat structure 100 of the present embodiment further includes a left large joint 150, a left lower seat assembly 160, and a seat locking assembly 170, wherein the left large joint 150 is disposed at a distance from the right large joint 110, the left lower seat assembly 160 is rotatably connected to the left lower seat assembly 160, the seat locking assembly 170 is movably connected to the left lower seat assembly 160, the seat locking assembly 170 can lock or unlock the seat assembly, i.e. when the seat locking assembly 170 locks the seat assembly, the seat assembly cannot rotate in a horizontal direction, and when the seat locking assembly 170 unlocks the seat assembly, the seat assembly can rotate in a horizontal direction; in detail, the seat locking assembly 170 is configured such that the seat locking assembly 170 is unlocked when the left lower socket assembly 160 is rotated in a first preset direction a, and is locked when the left lower socket assembly 160 is rotated in a second preset direction b opposite to the first preset direction a.

Still further, referring to fig. 2 to 4, the seat locking assembly 170 of the present embodiment includes a unlocking pin 172, a first elastic member 173 and a housing 176, wherein a first end of the unlocking pin 172 is detachably inserted into the seat assembly, the first elastic member 173 is sleeved outside the unlocking pin 172, a second end of the unlocking pin 172 is slidably inserted into the housing 176, and the first elastic member 173 is configured to move the unlocking pin 172 in a direction away from the seat assembly so as to disengage the first end of the unlocking pin 172 from the seat assembly; when the first resilient member 173 urges the unlocking pin 172 to move in a direction away from the seat assembly, the first end of the unlocking pin 172 disengages from the seat assembly to effect unlocking of the seat assembly.

Still further, referring to fig. 2, 3 and 5, the swivel seat structure 100 of the present embodiment further includes a fixed tube 180, the seat locking assembly 170 further includes an unlocking sleeve 171, a second elastic member 174 and a connecting plate 175, the unlocking sleeve 171 is slidably sleeved at a first end of the fixed tube 180, the second elastic member 174 is sleeved at the fixed tube 180, and one end of the second elastic member 174 abuts against the unlocking sleeve 171, and the second elastic member 174 is configured to make the unlocking sleeve 171 have a movement tendency toward the left lower tube seat assembly 160; the unlocking sleeve 171 is connected to the connecting plate 175 at one end far away from the left lower tube seat assembly 160, the connecting plate 175 is provided with a mounting opening 177 with an opening facing the seat assembly, the caliber of the mounting opening 177 gradually decreases from one end close to the seat assembly to one end far away from the seat assembly, namely, the side wall of the mounting opening 177 is inclined, the first end of the housing 176 is slidably abutted against the side wall of the mounting opening 177 close to the left lower tube seat assembly 160, the housing 176 can slide towards the direction close to or far away from the seat assembly, and the first end of the unlocking pin 172 can extend out of the second end of the housing 176; the first elastic member 173 is configured in detail to drive the first end of the unlocking pin 172 to disengage from the seat assembly when the unlocking sleeve 171 moves close to the left lower socket assembly 160 and the first end of the housing 176 slides down along the sidewall of the mounting opening 177, so as to unlock the seat assembly; in detail, when the left lower socket assembly 160 is rotated in the first preset direction a, the unlocking sleeve 171 moves toward the direction approaching the left lower socket assembly 160 under the action of the second elastic member 174, the connection plate 175 connected to the unlocking sleeve 171 moves toward the side approaching the left lower socket assembly 160 along with the unlocking sleeve 171, the housing 176 slides to the bottom of the mounting opening 177 along the side wall of the mounting opening 177 approaching the left lower socket assembly 160, the unlocking pin 172 is driven to move away from the seat assembly under the elastic action of the first elastic member 173, and when the first end of the unlocking pin 172 is disengaged from the seat assembly, the unlocking of the seat assembly is completed, so that the seat assembly can be driven to rotate; when the left lower socket assembly 160 rotates in the second preset direction b opposite to the first preset direction a, the unlocking sleeve 171 can be moved towards the direction approaching the right lower socket assembly 120, the connecting plate 175 connected with the unlocking sleeve 171 is pushed to move towards the direction approaching the right lower socket assembly 120, the first end of the housing 176 can move upwards along the side wall of the mounting opening 177 approaching the left lower socket assembly 160, and the housing 176 can push the unlocking pin 172 inserted in the housing 176 to move towards the direction approaching the seat assembly until the first end of the unlocking pin 172 is inserted in the seat assembly, so that locking of the seat assembly is achieved.

Referring to fig. 2, 3 and 5, the swivel seat structure 100 of the present embodiment further includes a lower cover 202, and the seat assembly includes an upper cover 201; the upper cover 201 is connected with the second transmission assembly 140, the unlocking pin 172 is detachably inserted into the upper cover 201 to unlock or lock the seat assembly by the unlocking pin 172, the lower cover 202 is connected with the fixing tube 180, one end of the upper cover 201 can be connected with one end of the lower cover 202, the connecting plate 175 can extend into the lower cover 202, a mounting opening 177 formed in the connecting plate 175 is positioned in the lower cover 202, a first limiting tube 203 is further arranged in the lower cover 202, the housing 176 is slidably arranged in the first limiting tube 203, the connecting plate 175 can extend into the first limiting tube 203 from the side wall of the first limiting tube 203, and the first end of the housing 176 can be abutted against the side wall of the mounting opening 177 on the connecting plate 175; alternatively, in other embodiments, the connection plate 175 is located outside the first limiting tube 203, and the first end of the housing 176 can extend out of the first limiting tube 203 to movably abut against the side wall of the mounting opening 177 of the connection plate 175; the first limiting tube 203 can enable the housing 176 and the unlocking pin 172 to move towards the direction approaching or separating from the upper cover 201 of the seat assembly more stably, i.e. unlocking or locking can be achieved more stably.

Referring to fig. 6 and 7 in detail, in the present embodiment, a limiting protrusion 204 is disposed on a side wall of the unlocking pin 172, one end of a first elastic member 173 is fixedly connected to one end of a first limiting tube 203 close to the upper cover 201, the other end of the first elastic member 173 is fixedly connected to the limiting protrusion 204 of the unlocking pin 172, and the first elastic member 173 is configured such that the unlocking pin 172 has a movement tendency toward a direction away from the upper cover 201; in detail, the first elastic member 173 can drive the unlocking pin 172 to move in a direction away from the seat assembly when the housing 176 slides along the side wall of the mounting port 177 to the bottom of the mounting port 177, and the housing 176 pushes the unlocking pin 172 to move in a direction toward the seat assembly when the housing 176 slides up along the side wall of the mounting port 177 away from the bottom of the mounting port 177.

Referring to fig. 2, the seat locking assembly 170 of the present embodiment further includes a first limiting post 178, where the first limiting post 178 is connected to the unlocking sleeve 171; referring to fig. 3 and 8, the left lower stem assembly 160 includes a left lower stem assembly 160 and a limiting plate 162, the left lower stem 161 is rotatably connected with the left large joint 150, the limiting plate 162 is disposed at a side of the left lower stem 161 facing the fixed pipe 180, the limiting plate 162 has a slope surface 163, the first limiting post 178 is configured such that the first limiting post 178 can slide along the slope surface 163 to abut against the left lower stem 161 when the left lower stem 161 rotates in a first preset direction a, in detail, a width of the circumferential limiting plate 162 along the left lower stem 161 gradually decreases from an end near the left lower stem 161 to an end far from the left lower stem 161, and the limiting plate 162 has opposite first and second sidewalls, the first sidewall moves in front of the second sidewall when the left lower stem 161 rotates in the first preset direction a, and the second sidewall is the slope surface 163, the end of the limiting plate 162 far away from the left lower tube seat 161 is provided with an abutting wall 205 connected between the first side wall and the second side wall, when the left lower tube seat 161 is located at the initial position, the first limiting post 178 connected to the unlocking tube sleeve 171 abuts against the abutting wall 205 of the limiting plate 162, when the left lower tube seat 161 rotates along the first preset direction a, the first limiting post 178 can slide along the second side wall to abut against the left lower tube seat 161, in the process that the first limiting post 178 slides along the second side wall, the unlocking tube sleeve 171 can move towards the direction close to the left lower tube seat 161 under the driving of the second elastic piece 174, and when the left lower tube seat 161 moves along the second preset direction b, the first limiting post 178 can slide along the second side wall to abut against the abutting wall 205 and can push the unlocking tube sleeve to move towards the direction far away from the left lower tube seat 161.

It should be noted that, referring to fig. 4 and 5, one end of the lower cover 202 facing the left lower tube seat 161 is connected with a first extension tube 206, the first extension tube 206 can extend between the fixing tube 180 and the unlocking tube sleeve 171, one end of the second elastic member 174 is abutted against the first extension tube 206, the other end is abutted against one end of the unlocking tube sleeve 171 near the left lower tube seat 161, and the second elastic member 174 is configured to make the unlocking tube sleeve 171 have a movement trend toward the left lower tube seat 161; alternatively, in other embodiments, both ends of the second elastic member 174 are fixedly provided to the fixing tube 180 and the unlocking sleeve 171, respectively, and configured such that the unlocking sleeve 171 has a movement tendency toward the lower left tube seat 161.

Referring to fig. 3 and 9, the first transmission assembly 130 of the present embodiment includes a connection pipe 131 and a first transmission gear 132, the second transmission assembly 140 includes a rotation shaft 141 and a second transmission gear 142, the first transmission gear 132 is connected with the connection pipe 131, the first transmission gear 132 and the connection pipe 131 are sleeved at the second end of the fixed pipe 180, the right lower tube seat assembly 120 is in transmission connection with the connection pipe 131, and when the right lower tube seat assembly 120 drives the connection pipe 131 to rotate, the connection pipe 131 can drive the first transmission gear 132 to rotate; referring to fig. 2 and 3, the second transmission gear 142 is fixedly connected with the rotating shaft 141, the rotating shaft 141 is rotatably inserted into the fixed tube 180, one end of the rotating shaft 141 is fixedly connected with the seat assembly, and the first transmission gear 132 is meshed with the second transmission gear 142; when the first transmission gear 132 and the connection pipe 131 rotate together, the first transmission gear can drive the second transmission gear 142 to rotate, so that the second transmission gear 142 can drive the rotation shaft 141 and the seat assembly fixedly connected with the rotation shaft 141 to rotate; further, one end of the rotating shaft 141 in the present embodiment is fixedly connected to the upper cover 201 of the seat assembly, so that the rotating shaft 141 is used to drive the upper cover 201 to rotate and drive the seat assembly to integrally rotate.

Referring to fig. 2, the lower right stem assembly 120 of the present embodiment includes a lower right stem 121, a rotation pin 122, and a third elastic member, two ends of the third elastic member are respectively connected to the lower right stem 121 and the rotation pin 122, and the third elastic member is configured such that the rotation pin 122 has a movement tendency toward the connection pipe 131; referring to fig. 9, the first transmission assembly 130 further includes a connection ring 133, the connection ring 133 is connected to an end of the connection pipe 131 away from the first transmission gear 132, the connection ring 133 is sleeved outside the fixed pipe 180, a transmission groove 134 is formed on a side of the connection ring 133 facing the right lower tube seat 121, the transmission groove 134 has a first end located at a front end of the first preset direction a and a second end located at a rear end of the first preset direction a along the first preset direction a, a depth of the transmission groove 134 is gradually reduced from the first end of the transmission groove 134 to the second end of the transmission groove 134, an end of the rotation pin 122 away from the third elastic member can slide in the transmission groove 134, and the rotation pin 122 can slide away from the transmission groove 134 from the second end of the transmission groove 134; when the lower right tube seat 121 rotates along the first preset direction a, the rotating pin 122 connected with the lower right tube seat 121 through the third elastic member rotates along the first preset direction a along with the lower right tube seat 121, under the elastic action of the third elastic member, one end of the rotating pin 122 far away from the third elastic member can be always abutted against the bottom wall of the transmission groove 134, and in the process that the rotating pin 122 rotates along the first preset direction a, the rotating pin 122 can move from the second end of the transmission groove 134 to the first end of the transmission groove 134, and when the rotating pin 122 moves to the first end of the transmission groove 134, the connecting ring 133, the connecting tube 131 and the first transmission gear 132 can be driven by the rotating pin 122 to rotate along the first preset direction a, so that the rotating first transmission gear 132 is utilized to drive the second transmission assembly 140 to drive the seat assembly to rotate; when the right lower socket 121 rotates in the second preset direction b, the rotation pin 122 can move from the first end to the second end of the driving groove 134, and the rotation pin 122 can be pushed by the bottom wall of the driving groove 134 toward the end close to the right lower socket 121, and the connection ring 133, the connection pipe 131, and the first driving gear 132 are not driven to rotate during the movement of the rotation pin 122 from the first end to the second end of the driving groove 134.

It should be noted that, the connecting ring 133 may be provided with a plurality of transmission grooves 134, and the plurality of transmission grooves 134 are disposed along the circumference of the connecting ring 133, when the lower right tube seat 121 rotates along the second preset direction b, the rotation pin 122 may slide from the second end of one transmission groove 134 to another adjacent transmission groove 134, when the lower right tube seat 121 rotates along the first preset direction a again, the rotation pin 122 may be inserted into the transmission groove 134 to drive the first transmission assembly 130 to rotate further, that is, each time the lower right tube seat 121 rotates along the first preset direction a, the rotation pin 122 may drive the seat assembly to rotate by a preset angle, for example: 10 °, 30 °, 60 °, etc., if the seat assembly needs to be continuously rotated, the lower right tube seat assembly 120 needs to be rotated in the second preset direction b, so that the rotation pin 122 is switched to another transmission groove 134 upstream in the second preset direction b, and then the lower right tube seat 121 is rotated once again in the first preset direction a to drive the seat assembly to rotate again by a preset angle, and the above steps may be repeated multiple times until the seat assembly is rotated to the corresponding position; it should be further noted that, in the present embodiment, 6 transmission grooves 134 are provided on the connection ring 133, and in other embodiments, the number of transmission grooves 134 provided on the connection ring 133 may be 2, 3, 5, 8, etc., which is not limited in particular.

In detail, referring to fig. 2, a second limiting tube 207 is further disposed on a side of the right lower tube seat 121 facing the first transmission assembly 130 in the present embodiment, the third elastic member is disposed inside the second limiting tube 207, the rotation pin 122 is slidably inserted into the second limiting tube 207 through the third elastic member, and the second limiting tube 207 can improve the stability of the rotation pin 122 when moving toward or away from the right lower tube seat 121.

Referring to fig. 9, a locking groove 135 is formed in a side wall of the connecting ring 133 in the present embodiment, the rotary seat structure 100 further includes a second limiting post 123 and a fourth elastic member, two ends of the fourth elastic member are respectively connected to the second limiting post 123 and the right large joint 110, and the fourth elastic member is configured to enable the second limiting post 123 to have a movement tendency toward a side wall close to the connecting ring 133; the locking groove 135 has a first end located at the front end of the first preset direction a and a second end located at the rear end of the first preset direction a, the depth of the locking groove 135 gradually decreases from the first end of the locking groove 135 to the second end of the locking groove 135, one end of the second limiting post 123 far away from the fourth elastic element can slide in the locking groove 135, and the second limiting post 123 can slide away from the locking groove 135 from the second end of the locking groove 135, and the fourth elastic element makes the second limiting post 123 have a movement trend of moving towards the connecting ring 133, so that the second limiting post 123 can always be abutted against the bottom wall of the locking groove 135 under the action of the fourth elastic element, i.e. the second limiting post 123 can be abutted against the bottom wall of the locking groove 135 to slide; in detail, a plurality of locking grooves 135 are distributed along the circumference of the connection ring 133 on the sidewall of the connection ring 133, and when the right lower tube holder 121 rotates in the first preset direction a, the plurality of locking grooves 135 all rotate toward the first preset direction a and sweep one end of the second limiting post 123 away from the fourth elastic member during rotation, so that the second limiting post 123 can slide from the first end to the second end of the locking groove 135 and can enter into the adjacent other locking groove 135; when the lower right tube seat 121 rotates along the second preset direction b, the locking groove 135 can sweep the second limiting post 123 in a direction, that is, the second limiting post 123 can slide from the second end of the locking groove 135 to the first end of the locking groove 135 and is clamped to the first end of the locking groove 135, so that when the lower right tube seat 121 rotates along the second preset direction b, the first transmission assembly 130 can be locked, and the first transmission assembly 130 is prevented from rotating, thereby preventing the seat assembly from rotating.

In detail, referring to fig. 2, the right large joint 110 of the present embodiment includes a joint body 111 and a third limiting tube 208 connected to the joint body 111, the third limiting tube 208 is disposed below the joint body 111, and the third limiting tube 208 can be communicated with the joint body 111, the connecting ring 133 of the first transmission assembly 130 can be embedded in the joint body 111 and is in transmission connection with the right lower tube seat assembly 120, the fourth elastic member is embedded in the third limiting tube 208, and the second limiting post 123 is slidably inserted in the third limiting tube 208 and is connected with the fourth elastic member, and the arrangement of the third limiting tube 208 can improve the stability of the movement direction of the second limiting post 123 and can improve the locking of the second limiting post 123 to the first transmission assembly 130.

Further, referring to fig. 2, the right large joint 110 further includes a second extension pipe 112, the second extension pipe 112 is connected to a side of the joint body 111 facing the first transmission assembly 130, and the second extension pipe 112 passes through the connection ring 133 of the first transmission assembly 130 to be connected with the second end of the fixing pipe 180, and further, the left large joint 150 assembly of the present embodiment includes a third extension pipe, and the third extension pipe is connected with the first end of the fixing pipe 180, so that the spacing arrangement of the right large joint 110 and the left large joint 150 can be realized.

Still further, referring to fig. 2, a sliding opening 113 is formed in a side wall of the joint body 111 facing the first transmission assembly 130, the sliding opening 113 extends along a circumferential direction of the joint body 111, the rotation pin 122 is slidably inserted into the sliding opening 113, and when the right lower tube seat 121 rotates, the rotation pin 122 slides in the sliding opening 113, so that stability of the rotation pin 122 during rotation can be improved; in detail, along the circumferential direction of the joint body 111, the sliding port 113 has a first end and a second end, when the lower right tube seat 121 drives the rotation pin 122 to rotate along the first preset direction a and rotate until the rotation pin 122 abuts against the first end of the sliding port 113, the rotation of the rotation pin 122 and the lower right tube seat 121 is blocked and cannot continue to rotate along the first preset direction a, at this time, the lower right tube seat 121 can be driven to rotate along the second preset direction b, when the lower right tube seat 121 drives the rotation pin 122 to rotate along the second preset direction b and rotate until the rotation pin 122 abuts against the second end of the sliding port 113, the rotation of the rotation pin 122 and the lower right tube seat 121 is blocked and cannot continue to rotate along the second preset direction b, so that the rotation distance of the lower right tube seat 121, the rotation pin 122 and the like can be limited by the length of the sliding port 113.

It should be noted that, referring to fig. 2, the seat assembly of the present embodiment further includes a base tube 209, the base tube 209 is fixedly connected with the upper cover 201, and when the right lower tube seat 121 rotates along the first preset direction a, the rotation pin 122 is driven to rotate along the first preset direction a, so as to drive the first transmission assembly 130 and the second transmission assembly 140 to operate, and the second transmission assembly 140 can rotationally drive the upper cover 201 and the base tube 209 fixedly connected with the upper cover 201 to rotate together.

It should be noted that, in this embodiment, the first transmission gear 132 and the second transmission gear are bevel gears, alternatively, in other embodiments, the second transmission gear 142 can be replaced by a worm, and the first transmission gear 132 can be meshed with the worm.

It should be noted that, the first elastic member 173, the second elastic member 174, the third elastic member and the fourth elastic member are all springs, and in other embodiments, the first elastic member 173, the second elastic member 174, the third elastic member and the fourth elastic member may be elastic rubber rings.

The present embodiment further provides a stroller 010, including a left push handle assembly 101, a right push handle assembly 102 and the above-mentioned rotary seat structure 100, where the right push handle assembly 102 is connected to the right lower seat assembly 120, the left push handle assembly 101 is connected to the left lower seat assembly 160, and one end of the right push handle assembly 102 far from the right lower seat assembly 120 is connected to one end of the left push handle assembly 101 far from the left lower seat 161 through a handle, when the handle is pressed down, both the right push handle assembly 102 and the left push handle assembly 101 rotate along a first preset direction a, and drive the right lower seat assembly 120 and the left lower seat assembly 160 to simultaneously rotate along the first preset direction a, on one hand, unlock the seat assembly, and on the other hand, drive the base assembly to rotate by using the first transmission assembly 130 and the second transmission assembly 140; it should be noted that, in the present embodiment, the limiting plate 162 of the left lower socket 161 and the driving slot 134 of the right lower socket 121, which are disposed opposite to each other, should be configured as follows: when the first limit post 178 abuts against the abutment wall 205 of the limit plate 162, the rotation pin 122 is not inserted into the first end of the transmission groove 134, when the first limit post 178 slides along the slope surface 163 of the limit plate 162 to abut against the lower left tube seat 161 after the lower left tube seat 161 and the lower right tube seat 121 rotate a certain distance along the first preset direction a, the rotation pin 122 rotates to the first end of the transmission groove 134, so that the rotation of the seat assembly can be realized after the seat assembly is unlocked, preferably, when the first limit post 178 abuts against the abutment wall 205 of the limit plate 162, the rotation pin 122 is positioned between the first end and the second end of the transmission groove 134, and when the first limit post 178 just slides to abut against the lower left tube seat 161, the rotation pin 122 is positioned at the first end of the transmission groove 134.

Referring to fig. 1, the stroller 010 of the present embodiment further includes a lower stem locking assembly 190, the lower stem locking assembly 190 is disposed on the right push handle assembly 102, and the lower stem locking assembly 190 is configured to lock the lower right stem assembly 120 or unlock the lower right stem assembly 120, and when the lower stem locking assembly 190 locks the lower right stem assembly 120, the lower right stem assembly 120 cannot be rotated, and after the lower stem locking assembly 190 unlocks the lower right stem assembly 120, the lower right stem assembly 120 can be rotated.

In detail, referring to fig. 10 and 11, the lower tube seat locking assembly 190 includes a fifth elastic member 191, a locking slider 192, a pulling member 193 and a sliding sleeve 194, the sliding sleeve 194 is sleeved on the right push handle assembly 102, the sliding sleeve 194 can slide along the length direction of the right push handle assembly 102, one end of the pulling member 193 is connected with the sliding sleeve 194, the other end is connected with the locking slider 192, the locking slider 192 is detachably inserted into the right lower tube seat 121, two ends of the fifth elastic member 191 are respectively connected with the locking slider 192 and the right push handle assembly 102, and the fifth elastic member 191 is configured to enable the locking slider 192 to have a movement trend towards the right lower tube seat 121; when the sliding sleeve 194 is slid in a direction away from the right lower socket assembly 120, the sliding sleeve 194 drives the pulling member 193 and the locking slider 192 connected to the pulling member 193 to move in a direction away from the right lower socket 121, so that the locking slider 192 can be separated from the right lower socket 121 to enable the right lower socket 121 to rotate in the first preset direction a or the second preset direction b, and when the force driving the sliding sleeve 194 to move in a direction away from the right lower socket 121 is removed, the locking slider 192 is driven to slide to be inserted into the right lower socket 121 under the elastic action of the fifth elastic member 191, and the right lower socket 121 is locked again so as not to rotate. The fifth elastic member 191 is a spring, and the pulling member 193 may be a string or the like.

It should be noted that, in the present embodiment, the left push handle assembly 101 is also provided with a lower stem locking assembly 190, the lower stem locking assembly 190 provided on the left push handle assembly 101 is configured to lock or unlock the left lower stem assembly 160, and the structure of the lower stem locking assembly 190 provided on the left push handle assembly 101 and the connection manner with the left lower stem assembly 160 are similar to those of the lower stem locking assembly 190 provided on the right push handle assembly 102 and the connection direction with the right lower stem assembly 120, which are not described herein.

It should be noted that, referring to fig. 1, the stroller 010 further includes a moving frame, the moving frame includes two sets of front connecting rods 211, two sets of rear connecting rods 212, a first connecting rod 213, a second connecting rod 214 and a third connecting rod 215, one ends of the two sets of front connecting rods 211 are connected with rollers, one ends of the two sets of front connecting rods 211, which are far away from the rollers, are respectively connected with the right big joint 110 and the left big joint 150, one ends of the two sets of rear connecting rods 212, which are far away from the rollers, are respectively connected with the first connecting rod 213, the second connecting rod 214 is connected between the two front connecting rods 211, and two ends of the third connecting rod 215 are respectively connected with the first connecting rod 213 and the second connecting rod 214.

Alternatively, in other embodiments, the mobile frame may also be a foldable frame, and the mobile frame can be connected with the right large joint 110 and the left large joint 150; it should be noted that structural technicians of the foldable frame can be obtained from the prior art, and will not be described herein.

The rotation of the rotary seat structure 100 provided on the stroller 010 can be realized by rotating the right push handle assembly 102 and the left push handle assembly 101 downward, that is, the rotation of the rotary seat structure 100 can be driven by rotating the right push handle assembly 102 and the left push handle assembly 101 in the first preset direction a; in detail, when the right push handle assembly 102 and the left push handle assembly 101 are simultaneously rotated in the first preset direction a, the left lower tube seat assembly 160 connected with the left push handle assembly 101 is rotated in the first preset direction a to drive the seat locking assembly 170 to unlock the seat assembly, and when the seat locking assembly 170 unlocks the seat assembly, the rotation pin 122 is inserted into the first end of the transmission groove 134, the right lower tube seat assembly 120 connected with the right push handle assembly 102 is rotated in the first preset direction a to drive the first transmission assembly 130 to rotate by using the rotation pin 122, and the second transmission assembly 140 is driven to rotate by using the first transmission assembly 130 to drive the seat assembly to rotate by using the second transmission assembly 140 to rotate; when the right push handle assembly 102 and the left push handle assembly 101 rotate along the second preset direction b at the same time, the left lower tube seat assembly 160 rotates along with the left push handle assembly 101 along the second preset direction b to drive the seat locking assembly 170 to lock the seat assembly, and the right lower tube seat assembly 120 moves along with the right push handle assembly 102 along the second preset direction b to be spliced at the first end of the locking groove 135 by utilizing the second limiting column 123 to lock the first transmission assembly 130; it should be noted that, if the right push handle assembly 102 and the left push handle assembly 101 are rotated once along the first preset direction a, and the rotation angle of the seat assembly does not reach the requirement of the user, the right push handle assembly 102 and the left push handle assembly 101 may be repeatedly rotated back and forth along the first preset direction a and the second preset direction b multiple times so that the seat can be rotated to a desired angle. It should be noted that the seat assembly of the rotary seat structure 100 of the child cart 010 of the present invention has a rotated state as shown in fig. 6, 1 and 12.

In summary, the rotating seat structure and the child stroller of the present invention have the following beneficial effects:

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A swivel seat arrangement comprising:

a right large joint;

a right lower header assembly rotatably coupled to the right large joint;

a first drive assembly in drive connection with the right lower header assembly;

a second transmission assembly in driving connection with the first transmission assembly;

a seat assembly in driving connection with the second drive assembly; the second transmission assembly is configured to drive the seat assembly to rotate in a horizontal direction;

a left large joint arranged at intervals with the right large joint;

a left lower socket assembly rotatably connected to the left large joint;

and a seat lock assembly movably coupled to the left lower header assembly; the seat lock assembly is configured to unlock the seat assembly when the left lower header assembly is rotated in a first predetermined direction and to lock the seat assembly when the left lower header assembly is rotated in a second predetermined direction opposite the first predetermined direction;

The seat locking assembly comprises an unlocking pin, a first elastic piece and a shell, wherein the first end of the unlocking pin is detachably inserted into the seat assembly, the first elastic piece is sleeved outside the unlocking pin, the second end of the unlocking pin is slidably inserted into the shell, and the first elastic piece is configured to enable the unlocking pin to have a movement trend of moving in a direction away from the seat assembly so as to enable the first end of the unlocking pin to be separated from the seat assembly;

the rotary seat structure further comprises a fixed pipe, and the seat locking assembly further comprises an unlocking sleeve, a second elastic piece and a connecting plate;

the unlocking sleeve is sleeved at the first end of the fixed pipe in a sliding manner, the second elastic piece is sleeved at the fixed pipe, and one end of the second elastic piece is abutted with the unlocking sleeve and configured to enable the unlocking sleeve to have a movement trend of moving towards the left lower pipe seat assembly;

the unlocking pipe sleeve is connected with the connecting plate at one end far away from the left lower pipe seat assembly, the connecting plate is provided with a mounting opening with an opening facing the seat assembly, and the caliber of the mounting opening gradually decreases from one end close to the seat assembly to one end far away from the seat assembly; the first end of the shell is movably abutted against one side wall of the mounting opening, which is close to the left lower tube seat assembly, and the shell can slide towards a direction of approaching or separating from the seat assembly, and the first elastic piece is configured to drive the first end of the unlocking pin to be separated from the seat assembly when the unlocking tube sleeve moves towards the left lower tube seat assembly and the first end of the shell slides downwards along the side wall of the mounting opening;

The seat locking assembly further comprises a first limiting column, and the first limiting column is connected with the unlocking sleeve; the left lower tube seat assembly comprises a left lower tube seat and a limiting plate, the left lower tube seat is rotatably connected with the left big joint, the limiting plate is arranged on one side of the left lower tube seat, which faces the fixed tube, the limiting plate is provided with a slope surface, and the first limiting column is configured to slide along the slope surface to be abutted with the left lower tube seat when the left lower tube seat rotates along the first preset direction;

2. The swivel seat structure of claim 1, wherein the right lower socket assembly includes a right lower socket, a swivel pin, and a third elastic member, both ends of the third elastic member being connected to the right lower socket and the swivel pin, respectively, the third elastic member being configured to cause the swivel pin to have a movement tendency toward the connection pipe; the first transmission assembly further comprises a connecting ring, the connecting ring is connected with one end of the connecting pipe, which is far away from the first transmission gear, a transmission groove is formed in one side of the connecting ring, which faces the right lower tube seat, the transmission groove is located at the first end of the front end of the first preset direction and the second end of the rear end of the first preset direction along the first preset direction, the depth of the transmission groove is gradually reduced from the first end of the transmission groove to the second end of the transmission groove, and one end of the rotating pin, which is far away from the third elastic piece, can slide in the transmission groove.

3. The swivel seat structure of claim 2, wherein the side wall of the connecting ring is provided with a locking groove, the swivel seat structure further comprising a second limit post and a fourth elastic member, both ends of the fourth elastic member being respectively connected with the second limit post and the right large joint, the fourth elastic member being configured to cause the second limit post to have a movement tendency toward the side wall close to the connecting ring; the locking groove is provided with a first end positioned at the front end in the first preset direction and a second end positioned at the rear end in the preset direction, the depth of the locking groove gradually decreases from the first end of the locking groove to the second end of the locking groove, and one end, far away from the fourth elastic piece, of the second limiting column can slide in the locking groove.

4. A stroller comprising a left push handle assembly, a right push handle assembly and a swivel seat arrangement according to any one of claims 1-3, said right push handle assembly being connected to said right lower header assembly, said left push handle assembly being connected to said left lower header assembly.

5. The stroller of claim 4, further comprising a lower header locking assembly disposed to the right push handle assembly and configured to lock or unlock the right lower header assembly.