CN219927770U

CN219927770U - Child cart

Info

Publication number: CN219927770U
Application number: CN202320935484.3U
Authority: CN
Inventors: 战华锋
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2023-04-24
Filing date: 2023-04-24
Publication date: 2023-10-31
Anticipated expiration: 2033-04-24

Abstract

The utility model discloses a baby stroller, which comprises a stroller frame, a backrest and a connecting seat, wherein the stroller frame comprises a foldable frame main body and a backrest frame which can be rotated and folded relative to the frame main body, the frame main body at least comprises a first bracket, the first bracket is provided with the connecting seat, the backrest frame is rotationally connected with the connecting seat around a first rotation center line, and a backrest locking mechanism for locking the connecting seat and the backrest frame with each other is arranged between the connecting seat and the backrest frame. The backrest locking mechanism comprises a locking piece movably arranged on the connecting seat and a matching part arranged on the backrest frame and used for matching with the locking piece. In the baby stroller, the backrest frame and the frame main body are locked through the backrest locking mechanism which is additionally arranged, so that the backrest frame is more stable relative to the frame main body when the stroller frame is in a unfolded state.

Description

Child cart

Technical Field

The utility model relates to the field of children products, in particular to a child trolley.

Background

The existing children's barrow has various structures, and the rod pieces in the barrow frame are mostly connected in a rotating connection mode, so that the rod pieces can relatively rotate to fold the barrow frame. However, the rod member often has an assembly gap during assembly, so that the rod member still shakes in the unfolded state of the cart frame, and the comprehensive performance of the product is affected.

Disclosure of Invention

The object of the present utility model is to provide an improved stroller.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the baby stroller comprises a stroller frame with an unfolding state and a folding state, wherein the stroller frame comprises a foldable frame main body and a backrest frame which can be rotated and folded relative to the frame main body, the frame main body at least comprises a first bracket, the first bracket is provided with a connecting seat, the backrest frame is rotationally connected with the connecting seat around a first rotation center line, a backrest locking mechanism for locking the connecting seat and the backrest frame mutually is arranged between the connecting seat and the backrest frame, the backrest locking mechanism comprises a locking piece movably arranged on the connecting seat and a matching part arranged on the backrest frame and used for being matched with the locking piece, the locking piece is provided with a first position and a second position which can be switched, when the locking piece is in the first position, the locking piece is matched with the matching part, and the backrest locking mechanism is in a locking state; when the locking piece is in the second position, the locking piece is separated from the matching part, the backrest locking mechanism is in an unlocking state, an elastic piece for driving the locking piece to move from the second position to the first position is further arranged on the connecting seat, and an unlocking piece for driving the locking piece to move from the first position to the second position is further arranged on the frame main body.

Preferably, the backrest frame comprises two backrest rods which are respectively arranged at the left side and the right side and extend along the vertical direction, the first support comprises two first support rods which are respectively arranged at the left side and the right side and extend along the vertical direction, the left side and/or the right side of the cart frame are/is provided with a connecting seat, and a backrest locking mechanism is arranged between the connecting seat and the backrest rods.

In some embodiments, the backrest rod comprises a rod body and a rod seat fixed at the lower part of the rod body, the length extending direction of the rod seat is deviated from the length extending direction of the rod body, the trolley frame is in a unfolded state, and the rod body is positioned above the connecting seat at the same side and extends along the same length direction with the connecting seat.

In some embodiments, the rod seat is disposed on the inner side of the rod body, and the rod seats on the left and right sides are located between the two sets of connection seats along the left and right directions.

In some embodiments, the length extension direction of the first strut forms an included angle with the length extension direction of the connection base that is greater than 0 ° and less than 180 °.

Preferably, the locking piece is slidingly disposed on the connecting seat, the unlocking piece is slidingly disposed on the frame body and has an unlocking position and a locking position on the frame body, the sliding direction of the unlocking piece is perpendicular to the sliding direction of the locking piece, and a driving structure for driving the locking piece to slide from the first position to the second position in the process of moving the unlocking piece from the locking position to the unlocking position is disposed between the unlocking piece and the locking piece.

In some embodiments, the locking member extends in an up-down direction and is slidably disposed on the connecting seat along a length direction of the locking member, the first position is higher than the second position, an upper end portion of the locking member is a locking end portion for being matched with the matching portion, a lower end portion of the locking member is a driving end portion, and the driving structure is disposed between the driving end portion and the unlocking member.

In some embodiments, the driving structure includes a first inclined plane disposed at the driving end, and a second inclined plane disposed on the unlocking member, where the first inclined plane and the second inclined plane are mutually fit, and the first inclined plane gradually extends downward in an inclined manner toward the unlocking member.

In some embodiments, the frame body further includes a second bracket, the second bracket is rotationally connected with the first bracket around a second rotation center line, the first rotation center line is parallel to the second rotation center line, the cart frame further includes a main locking mechanism disposed between the first bracket and the second bracket and used for locking the first bracket and the second bracket with each other, and in a process of converting the main locking mechanism from a locking state to an unlocking state, the unlocking member slides from the locking position to the unlocking position.

In some embodiments, the first support is a front support, the second support is a rear support, a front wheel assembly is arranged at the bottom of the front support, a rear wheel assembly is arranged at the bottom of the rear support, the cart frame further comprises a push rod frame, the lower part of the push rod frame is rotationally connected to the cart frame main body, and the cart frame is in a unfolded state, and the push rod frame has a forward working state extending obliquely from front to back upwards and a reverse working state extending gradually obliquely upwards from back to front.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages: in the child stroller, the backrest frame and the frame main body are locked through the backrest locking mechanism which is additionally arranged, so that the backrest frame is more stable relative to the frame main body when the stroller frame is in the unfolded state.

Drawings

FIG. 1 is a schematic perspective view of a child stroller in an unfolded state, in which a pusher carriage is in a forward operating state;

FIG. 2 is a schematic perspective view of the push rod rest of the stroller of FIG. 1 in a reverse operating state;

FIG. 3 is a schematic perspective view of the child stroller of FIG. 1 with a seat added;

FIG. 4 is a schematic top view of the stroller of FIG. 3 with the back lock mechanism in a locked condition;

FIG. 5 is a schematic view of the cross-sectional structure taken along line A-A of FIG. 4;

FIG. 6 is an enlarged schematic view of the portion P1 of FIG. 5;

FIG. 7 is a schematic side view of FIG. 4;

FIG. 8 is a schematic view of the cross-sectional structure taken along B-B in FIG. 7;

FIG. 9 is a schematic top view of the stroller of FIG. 3 with the back lock mechanism in an unlocked state;

FIG. 10 is a schematic view of the cross-sectional structure taken along the line C-C in FIG. 9;

FIG. 11 is an enlarged schematic view of FIG. 10 at P2;

FIG. 12 is a schematic side view of FIG. 9;

FIG. 13 is a schematic view of the structure taken along line D-D in FIG. 12;

wherein: 1. a backrest frame; 11. a backrest rod; 11a, a rod body; 11b, a rod seat; 11c, mating parts (locking grooves); 2. a first bracket (front bracket); 21. a first strut; 22. a connecting seat; 3. a second bracket (rear bracket); 31. a second strut; 4. a push rod frame; 5. a first shaft; 6. a second shaft; 7. a locking member; 71. a locking end; 72. a drive end; 73. a first inclined surface; 8. an elastic member (spring); 9. an unlocking member; 91. a second inclined surface; 10. a front wheel assembly; 20. and a rear wheel assembly.

Detailed Description

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

The following description of the directions, such as front, rear, left, right, up, down, etc., is defined by referring to the directions observed by a child sitting on the stroller in a state where the stroller frame of the stroller is unfolded, and only aims to clearly describe the relative positional relationship of the respective components.

Referring to fig. 1 to 13, a stroller comprises a stroller frame having an unfolded state and a folded state, the stroller frame comprises a foldable frame body and a backrest frame 1 capable of being folded rotatably relative to the frame body, the frame body at least comprises a first bracket 2, the stroller frame is in the unfolded state, the backrest frame 1 and the first bracket 2 are both obliquely extended in the up-down direction, the lower part of the backrest frame 1 is rotatably connected with the first bracket 2 around a first rotation center line, and the backrest frame 1 is also connected with other rods on the frame body, so that the backrest frame 1 can be unfolded relative to the frame body when the frame body is unfolded, and the stroller frame is in the unfolded state; and the back rest 1 can be folded relative to the frame body when the frame body is folded, so that the stroller frame is converted into a folded state. The main locking mechanism is arranged on the frame main body and used for locking the cart frame in an unfolding state, after the main locking mechanism is unlocked, the frame main body can be folded, and the backrest frame 1 can be rotated and folded relative to the first bracket 2, so that the cart frame is converted into a folding state.

Referring to the drawings, the second bracket 2 is provided with a connecting seat 22, the backrest frame 1 is rotatably connected with the connecting seat 22 through a first shaft 5, and the axial lead of the first shaft 5 forms the first rotation central line; a backrest locking mechanism for locking the connecting seat 22 and the backrest frame 1 is arranged between the connecting seat and the backrest frame 1, so that the backrest frame 1 can be locked with the first bracket 2 again when the trolley frame is in a unfolded state, and the backrest frame 1 is prevented from shaking.

Referring to fig. 3 to 13, the backrest locking mechanism includes a locking member 7 movably provided on the link seat 22, and an engaging portion 11c provided on the backrest frame 1 for engaging with the locking member 7, the locking member 7 having a switchable first position and a second position on the link seat 22, when the locking member 7 is in the first position, the locking member 7 is engaged with the engaging portion 11c as shown in fig. 6, and the backrest locking mechanism is in a locked state in which the backrest frame 1 and the link seat 22 are locked with each other; when the locking member 7 is in the second position, as shown in fig. 11, the locking member 7 is disengaged from the engaging portion 11c, the backrest locking mechanism is in an unlocked state, and the magnet backrest frame 1 is unlocked from the connecting seat 22, and at this time, after the main locking mechanism is unlocked from the frame main body, the backrest frame 1 and the frame main body can be relatively rotated and folded, thereby realizing folding of the trolley frame.

The connecting seat 22 is also provided with an elastic piece 8 which is used for driving the locking piece 7 to move from the second position to the first position and has the acting force required by the movement, so that the backrest locking mechanism can be kept in a locking state when no external force acts; the frame body is also provided with an unlocking piece 9 for driving the locking piece 7 to move from the first position to the second position so as to unlock the backrest locking mechanism.

Specifically, referring to the drawings, the backrest frame 1 includes two backrest bars 11 respectively disposed on the left and right sides and extending in the up-down direction, the first bracket 2 includes two first struts 21 respectively disposed on the left and right sides and extending in the up-down direction, and a connecting seat 22 is fixedly disposed on the upper portion of the first struts 21 in the left and right sides and/or the right side of the cart frame, and the backrest locking mechanism is disposed between the connecting seat 22 and the backrest bars 11.

In this embodiment, on each side of the cart frame, the first struts 21 are respectively provided with a connecting seat 22, an included angle between the length extending direction of the first struts 21 and the length extending direction of the connecting seat 22 is greater than 0 ° and less than 180 °, and a backrest locking mechanism is disposed between the connecting seat 22 and the backrest rod 11. The backrest rod 11 comprises a rod body 11a and a rod seat 11b fixedly arranged at the lower part of the rod body 11a, and the length extending direction of the rod seat 11b and the length extending direction of the rod body 11a deviate from each other. In the unfolded state of the cart frame, the rod body 11a is positioned above the connecting seat 22 on the same side of the cart frame and extends along the same length direction with the connecting seat 22, and the backrest frame 1 is rotatably connected with the connecting seat 22 around the first shaft 5 through the rod seat 11 b. Here, the rod seat 11b is provided inside the rod body 11a in the left-right direction, and the rod seats 11b on the left and right sides are located between the two sets of connection seats 22 in the left-right direction.

Referring to fig. 3 to 13, the locking member 7 is specifically slidably disposed on the connecting seat 22, the unlocking member 9 is slidably disposed on the frame body, the unlocking member 9 has a switchable unlocking position and a locking position on the frame body, the sliding direction of the unlocking member 9 is perpendicular to the sliding direction of the locking member 7, a driving structure is disposed between the unlocking member 9 and the locking member 7, and during the process of moving the unlocking member 9 from the locking position to the unlocking position, the locking member 7 is driven to slide from the first position to the second position by the driving structure, so as to unlock the backrest locking mechanism.

Specifically, in the present embodiment, the locking member 7 is a rod-shaped member that extends in the up-down direction, the length direction of which coincides with the length extending direction of the connection base 22, and the locking member 7 is slidably provided on the connection base 22 in the own length direction, the first position being higher than the second position.

The upper end of the locking piece 7 is a locking end 71 for cooperating with a cooperating portion 11c, here specifically a locking groove provided on the rod seat 11b, in which locking groove the locking end 71 is inserted when the locking piece 7 slides upwards, so that the backrest locking mechanism is locked. The elastic member 8 is here embodied as a spring for providing the force required for the upward movement of the locking member 7, so that the locking member 7 has a tendency to move upward, so that the locking end 71 can be stably inserted in the locking groove. The lower end of the lock 7 is a drive end 72, and the drive structure is provided between the drive end 72 and the unlocking member 9.

Referring to fig. 8 and 13, the driving structure includes a first inclined surface 73 provided on the driving end 72, and a second inclined surface 91 provided on the unlocking member 9, wherein the first inclined surface 73 and the second inclined surface 91 are mutually attached, the first inclined surface 73 gradually extends downward toward the unlocking member 9, and in the process of driving the unlocking member 9 to move toward the locking member 7, the unlocking member 9 moves from the locking position toward the unlocking position, and the second inclined surface 91 drives the locking member 7 to move downward against the action of the elastic member 8, so that the locking end 71 is separated from the locking groove, and the backrest locking mechanism is unlocked.

In this embodiment, the frame body further includes a second bracket 3, the second bracket 3 is rotatably connected with the first bracket 2 around a second rotation center line, the second rotation center line is parallel to the first rotation center line, and a main locking mechanism on the frame body is disposed between the first bracket 2 and the second bracket 3 and is used for locking the first bracket 2 and the second bracket with each other. Specifically, the second bracket 3 includes two second struts 31 which are provided on the left and right sides and extend in the up-down direction, and on the left and right sides of the cart frame, the upper portion of the first strut 21 and the upper portion of the second strut 31 are rotatably connected by a second shaft 6, and the second shaft 6 is located below the first shaft 5. A main locking mechanism as described above is provided between the first strut 21 and the second strut 31 on each side. In the process of switching the main locking mechanism from the locking state to the unlocking state, the unlocking piece 9 slides from the locking position to the unlocking position, so that the backrest locking mechanism is unlocked in a linkage manner. The main locking mechanism can be specifically locked by adopting a locking sliding block with locking teeth arranged at the outer peripheral part in the prior art, and the specific structural form of the main locking mechanism is not the key point of the utility model and is not repeated here.

In this embodiment, referring to fig. 1 to 3, the first bracket 2 is a front bracket, the second bracket 3 is a rear bracket, the bottom of the front bracket is provided with a front wheel assembly 10, and the bottom of the rear bracket is provided with a rear wheel assembly 20. The cart frame further comprises a push rod frame 4, the lower part of the push rod frame 4 is rotationally connected to the cart frame body, and in the unfolded state, the push rod frame 4 has a forward working state of obliquely extending from front to back upwards as shown in fig. 1 and a reverse working state of gradually and upwards obliquely extending from back to front as shown in fig. 2. In the process of switching between the forward working state and the reverse working state by rotating the push rod frame 4, the frame main body and the backrest frame 1 are locked by the main locking mechanism, and the backrest frame 1 is further locked on the front support by the backrest locking mechanism, so that the backrest frame 1 is more stable and can not shake. When the cart frame is folded, the backrest locking mechanism is also unlocked in a linkage manner in the process of unlocking the main locking mechanism, so that each rod piece in the cart frame can be driven to move relatively to realize the folding of the cart frame.

The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims

1. A child stroller comprising a stroller frame having an unfolded state and a folded state, the stroller frame comprising a foldable frame body and a backrest frame capable of being rotated and folded relative to the frame body, the child stroller being characterized in that: the frame main body at least comprises a first bracket, the first bracket is provided with a connecting seat, the backrest frame is rotationally connected with the connecting seat around a first rotation center line, a backrest locking mechanism for locking the connecting seat and the backrest frame is arranged between the connecting seat and the backrest frame,

the backrest locking mechanism comprises a locking piece movably arranged on the connecting seat and a matching part arranged on the backrest frame and used for being matched with the locking piece, the locking piece is provided with a first position and a second position which can be switched on the connecting seat, when the locking piece is positioned at the first position, the locking piece is matched with the matching part, and the backrest locking mechanism is in a locking state; when the locking piece is in the second position, the locking piece is separated from the matching part, the backrest locking mechanism is in an unlocking state, an elastic piece for driving the locking piece to move from the second position to the first position is further arranged on the connecting seat, and an unlocking piece for driving the locking piece to move from the first position to the second position is further arranged on the frame main body.

2. The stroller of claim 1, wherein: the backrest frame comprises two backrest rods which are respectively arranged at the left side and the right side and extend along the vertical direction, the first support comprises two first support rods which are respectively arranged at the left side and the right side and extend along the vertical direction, the left side and/or the right side of the cart frame is/are provided with a connecting seat, and a backrest locking mechanism is arranged between the connecting seat and the backrest rods.

3. The stroller of claim 2, wherein: the backrest rod comprises a rod body and a rod seat fixedly arranged at the lower part of the rod body, the length extending direction of the rod seat is deviated from the length extending direction of the rod body, and the trolley frame is in a unfolding state, and the rod body is positioned at the same side above the connecting seat and extends along the same length direction with the connecting seat.

4. A stroller according to claim 3, wherein: the rod seat is arranged on the inner side of the rod body, and the rod seats on the left side and the right side are positioned between the two groups of connecting seats along the left-right direction.

5. The stroller of claim 2, wherein: the included angle between the length extension direction of the first support rod and the length extension direction of the connecting seat is larger than 0 degrees and smaller than 180 degrees.

6. A stroller according to any one of claims 1 to 5, wherein: the locking piece is arranged on the connecting seat in a sliding manner, the unlocking piece is arranged on the frame main body in a sliding manner and is provided with an unlocking position and a locking position, the sliding direction of the unlocking piece is mutually perpendicular to the sliding direction of the locking piece, and a driving structure for driving the locking piece to slide from the first position to the second position in the process of moving the unlocking piece from the locking position to the unlocking position is arranged between the unlocking piece and the locking piece.

7. The stroller of claim 6, wherein: the locking piece extends along the up-down direction and can be arranged on the connecting seat in a sliding manner along the length direction of the locking piece, the first position is higher than the second position, the upper end part of the locking piece is a locking end part which is used for being matched with the matching part, the lower end part of the locking piece is a driving end part, and the driving structure is arranged between the driving end part and the unlocking piece.

8. The stroller of claim 7, wherein: the driving structure comprises a first inclined surface arranged at the driving end part and a second inclined surface arranged on the unlocking piece, wherein the first inclined surface is mutually attached to the second inclined surface, and the first inclined surface extends downwards gradually and obliquely towards the unlocking piece.

9. The stroller of claim 6, wherein: the frame main body further comprises a second support, the second support is rotationally connected with the first support around a second rotation center line, the first rotation center line is parallel to the second rotation center line, the cart frame further comprises a main locking mechanism which is arranged between the first support and the second support and used for locking the first support and the second support with each other, and the unlocking piece slides from the locking position to the unlocking position in the process of converting the main locking mechanism from the locking state to the unlocking state.

10. The stroller of claim 9, wherein: the first support is the fore-stock, the second support is the rear bracket, the bottom of fore-stock is equipped with the front wheel subassembly, the bottom of rear bracket is equipped with the rear wheel subassembly, the shallow frame still includes the push rod frame, the lower part of push rod frame is rotationally connected in on the frame main part, just the shallow frame is in under the state of expanding, the push rod frame has the forward operating condition that upwards inclines to extend from the front to the back to the reverse operating condition that upwards inclines to extend gradually from the back to the front.