CN112849251B - Baby trailer with automatic backrest unfolding and folding function - Google Patents
Baby trailer with automatic backrest unfolding and folding function Download PDFInfo
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- CN112849251B CN112849251B CN202110254468.3A CN202110254468A CN112849251B CN 112849251 B CN112849251 B CN 112849251B CN 202110254468 A CN202110254468 A CN 202110254468A CN 112849251 B CN112849251 B CN 112849251B
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- backrest
- frame
- backrest support
- support
- folding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
- B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
- B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
- B62B9/10—Perambulator bodies; Equipment therefor
- B62B9/102—Perambulator bodies; Equipment therefor characterized by details of the seat
- B62B9/104—Perambulator bodies; Equipment therefor characterized by details of the seat with adjustable or reclining backrests
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
Abstract
The application provides a baby's trailer with back is automatic to be opened and shut, includes frame, hand (hold) and back support group. The frame includes chassis, upper frame and supporting component. The upper enclosure frame is arranged above the underframe; the supporting component is movably arranged between the bottom frame and the upper enclosing frame, so that the upper enclosing frame can be linked to move to an upper enclosing frame unfolding position away from a containing space formed by the bottom frame and to move to an upper enclosing frame folding position close to the bottom frame. The backrest support group is rotatably arranged on one side of the accommodating space, the backrest support group can rotate to a backrest support position and a backrest folding position, a backrest linkage mechanism is arranged between the backrest support group and the frame, and when the upper enclosure frame moves from the upper enclosure frame unfolding position to the upper enclosure frame folding position or from the upper enclosure frame folding position to the upper enclosure frame unfolding position, the backrest support group moves from the backrest support position to the backrest folding position or from the backrest folding position to the backrest support position through the backrest linkage mechanism. The application is simple and easy to operate and convenient to use.
Description
[ technical field ] A method for producing a semiconductor device
The application relates to the field of infant and child articles, in particular to an infant trailer with a backrest capable of being automatically unfolded and folded.
[ background of the invention ]
The baby trailer sold on the market is complex in structure, when the trailer is folded or unfolded, the frame and the backrest need to be operated respectively, so that the operation steps are more, the operation is inconvenient, and the use by parents is inconvenient.
[ summary of the invention ]
In order to improve the use convenience of the baby trailer, the baby trailer with the backrest capable of being automatically unfolded and folded has the advantages of simple structure and concise folding or unfolding operation steps.
The application is realized by the following technical scheme:
baby trailer with automatic backrest unfolding and folding function, comprising a frame with an unfolding state and a folding state, wherein the frame comprises:
a chassis, under which a wheel set is provided;
the upper enclosing frame is arranged above the underframe;
the supporting component is movably arranged between the bottom frame and the upper enclosing frame so as to link the upper enclosing frame to enable the upper enclosing frame to move to an upper enclosing frame unfolding position far away from an accommodating space formed by the bottom frame and to move to an upper enclosing frame folding position close to the bottom frame;
the baby trailer with the backrest capable of automatically unfolding and folding further comprises:
the handle is arranged on one side of the frame and used for pushing or dragging the frame;
the backrest support group is rotatably arranged on one side of the accommodating space, the backrest support group can rotate to a backrest support position and a backrest folding position, a backrest linkage mechanism is arranged between the backrest support group and the frame, when the upper enclosure frame moves from the upper enclosure frame unfolding position to the upper enclosure frame folding position or from the upper enclosure frame folding position to the upper enclosure frame unfolding position, the backrest support group correspondingly moves from the backrest support position to the backrest folding position or from the backrest folding position to the backrest support position through the backrest linkage mechanism.
The baby trailer with the automatic backrest unfolding and folding function comprises a backrest support group, a backrest linkage mechanism and an upper enclosure frame, wherein the backrest linkage mechanism comprises a sliding sleeve which is arranged on the backrest support group and can slide along the backrest support group, and a linkage connecting rod which is pivoted with the sliding sleeve is arranged on the upper enclosure frame.
As above baby trailer with automatic back exhibition is received, back link gear is including locating back spout on the back support group and locating go up enclose on the frame and can follow the back spout slides and can be relative back support group pivoted connecting rod piece.
According to the baby trailer with the automatic backrest unfolding and folding function, the backrest support group is provided with the clamping tenon, and the connecting rod bayonet matched with the clamping tenon in a clamping mode when the backrest support group rotates to the backrest support position is arranged on the connecting rod piece.
The baby trailer with the backrest capable of automatically unfolding and folding as described above, the backrest support group comprises a first backrest support and a second backrest support with one end pivoted with the chassis, the first backrest support can be locked or moved relative to the second backrest support, when the frame is in the unfolding state, the first backrest support can be separated from the second backrest support so that the first backrest support can be moved relative to the chassis alone, or the first backrest support can be connected to the second backrest support so as to be kept in the backrest support position.
The baby trailer with the automatically unfolded and folded backrest is characterized in that the first backrest support is pivoted with the base frame or the second backrest support, and the first backrest support can be independently overturned relative to the base frame between a backrest folding position and a backrest supporting position.
The baby trailer with the automatic backrest unfolding and folding function comprises a backrest support group, a backrest locking mechanism and a blocking part, wherein the backrest locking mechanism can lock the first backrest support and the second backrest support and comprises a movable locking piece arranged on one of the first backrest support and the second backrest support and the blocking part arranged on the other of the first backrest support and the second backrest support and capable of being in snap fit with the movable locking piece, when the movable locking piece is mutually buckled with the blocking part, the first backrest support and the second backrest support are locked, and when the movable locking piece is separated from the blocking part, the first backrest support can independently move relative to the second backrest support and the underframe.
The baby trailer with the backrest capable of being automatically unfolded and folded is characterized in that the backrest linkage mechanism is arranged between the second backrest support and the upper enclosure frame.
As above, the baby trailer with the automatic backrest unfolding and folding function, the backrest linkage mechanism comprises the backrest chute arranged on the second backrest support and the connecting rod piece arranged on the upper enclosing frame and capable of sliding along the backrest chute and rotating relative to the second backrest support.
According to the baby trailer with the automatic backrest unfolding and folding function, the second backrest support is provided with the clamping tenon, and the connecting rod bayonet matched with the clamping tenon in a clamping mode when the second backrest support rotates to the backrest supporting position is arranged on the connecting rod piece.
As above baby's trailer with automatic exhibition of back is received, the supporting component includes first stay tube and the second stay tube of cross pin joint, the one end of first stay tube with enclose frame looks pin joint on, the other end of first stay tube with chassis sliding connection, the one end of second stay tube with chassis looks pin joint, the other end of second stay tube with enclose frame sliding connection on, so that pass through the relative rotation drive of first stay tube and second stay tube go up enclose the frame with the chassis is close to or keeps away from relatively in opposite directions.
The baby trailer with the backrest capable of automatically unfolding and folding as above or mentioned further comprises a connecting rod locking mechanism for locking or unlocking the support assembly when the frame is in the unfolding state, wherein the connecting rod locking mechanism comprises a frame locking assembly for locking the support assembly on the upper enclosing frame or the underframe and a frame unlocking assembly for unlocking the frame locking assembly.
As above baby's trailer with automatic exhibition of back, the hand (hold) is rotatable at least to pushing position, drags position and hand (hold) folding position, wherein, the hand (hold) is located be greater than with the contained angle on ground when pushing the position the hand (hold) is located with the contained angle on ground when dragging the position, the hand (hold) stacks when being located hand (hold) folding position on the chassis, baby's trailer with automatic exhibition of back still includes the hand (hold) rotates to pushing position, drags locking or unblock when position and folding position the hand (hold) locking mechanical system of hand (hold), hand (hold) locking mechanical system including can with the hand (hold) is relative the frame locks with a plurality of rotation angle hand (hold) locking component on the frame and is used for the unblock hand (hold) unlocking component of hand (hold) locking component.
According to the baby trailer with the backrest capable of being automatically unfolded and folded, at least the seat plate and the pedal space below the underframe are arranged on the underframe.
Compared with the prior art, the method has the following advantages:
in this application, through setting up back interlock mechanism, when operation frame is folded up or is expanded, back interlock mechanism can fold up or expand by synchronous interlock back support group, can drive the back in step and fold up or expand, realizes that one-step operation just can control frame and back and fold up or expand in step, has simplified the operating procedure, and the operation is simple and easy, makes things convenient for parents to use very much.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below.
FIG. 1 is a schematic view of an embodiment of a baby trailer with a backrest capable of automatically unfolding and folding, wherein a frame is in an unfolded state;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a cross-sectional view showing the frame in a deployed or collapsed state in a baby trailer with a backrest capable of being automatically deployed according to an embodiment;
FIG. 4 is a cross-sectional view of the stroller frame during the unfolding or folding process of the stroller with the backrest capable of being automatically unfolded and folded according to the second embodiment;
FIG. 5 is a cross-sectional view of the foldable baby carriage with the backrest automatically unfolded and folded according to the embodiment;
FIG. 6 is a first schematic view showing a frame of the baby trailer automatically unfolded and folded according to the second embodiment;
FIG. 7 is a second schematic view of the baby trailer with the backrest automatically unfolded and folded according to the second embodiment, wherein the frame is in an unfolded state;
FIG. 8 is a schematic view of the baby carriage with the backrest automatically unfolded and folded according to the second embodiment of the present invention;
fig. 9 is a schematic view showing a frame of the baby trailer being folded according to the second embodiment with the backrest being automatically unfolded and folded;
FIG. 10 is a schematic view of the baby trailer with the backrest automatically unfolded and folded according to the second embodiment, showing the handle in the unfolding or folding process;
fig. 11 is a partial schematic structural view of a baby trailer with a backrest capable of automatically unfolding and folding according to a second embodiment, wherein a backrest support group is in a backrest support position;
fig. 12 is a schematic partial structural view of the baby trailer with the backrest automatically unfolded and folded according to the second embodiment, wherein the backrest support set is partially unfolded or folded;
fig. 13 is a second schematic view of a portion of the backrest support set during the unfolding or folding process of the baby trailer with the backrest capable of being automatically unfolded and folded according to the second embodiment;
fig. 14 is a partial schematic structural view of the baby trailer with the backrest automatically unfolded and folded according to the second embodiment, wherein the backrest support group is in the backrest support position;
FIG. 15 is an enlarged schematic view of section A of FIG. 14;
FIG. 16 is a schematic view showing the rotation of the first backrest bracket away from the second backrest bracket in the baby trailer with the backrest automatically unfolded and folded according to the second embodiment;
FIG. 17 is a first schematic view of a link lock mechanism;
FIG. 18 is a second schematic view of the link locking mechanism;
FIG. 19 is a schematic view of the one-hand release lock operator on the frame;
FIG. 20 is a schematic view of the internal structure of FIG. 19;
fig. 21 is a schematic view of a handle lock mechanism.
[ detailed description ] embodiments
In order to make the technical problems, technical solutions and advantageous effects solved by the present application more clear and obvious, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
When the embodiments of the present application refer to ordinal numbers such as "first", "second", etc., it should be understood that the terms are used for distinguishing only when the context clearly indicates that the order is changed.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The first embodiment is as follows: the baby trailer with the backrest capable of automatically unfolding and folding as shown in fig. 1 to 5 comprises a frame 1 with an unfolding state and a folding state, wherein the frame 1 comprises a base frame 12, an upper surrounding frame 11 and a support assembly 13. The chassis 12 below is equipped with the wheel group 6, on enclose frame 11 and locate the chassis 12 top, the mobilizable locating of supporting component 13 the chassis 12 with on enclose between the frame 11, thereby the interlock on enclose the frame 11 and make on enclose frame 11 and can remove to keeping away from chassis 12 and chassis 12 constitute the frame that opens the position and make on of accommodation space 7 enclose the frame 11 on can remove to drawing close on of chassis 12 enclose the frame folding position.
The baby trailer with the backrest capable of automatically unfolding and folding also comprises a handle 4 and a backrest support group 2. The handlebar 4 is arranged on one side of the frame 1 and used for pushing or dragging the frame 1. The backrest support group 2 is rotatably arranged on one side of the accommodating space 7, the backrest support group 2 can be rotated to a backrest support position and a backrest folding position, and when the backrest support group 2 is located at the backrest support position and the backrest folding position, the backrest support group 2 is located on the inner side of the upper enclosure frame 11, and the structure is compact. A backrest linkage mechanism 20 is arranged between the backrest support group 2 and the frame 1, and when the upper enclosure frame 11 moves from the upper enclosure frame unfolding position to the upper enclosure frame folding position or from the upper enclosure frame folding position to the upper enclosure frame unfolding position, the backrest support group 2 correspondingly moves from the backrest support position to the backrest folding position or from the backrest folding position to the backrest support position through the backrest linkage mechanism 20. In the embodiment, by arranging the backrest linkage mechanism, when the frame is folded or unfolded, the backrest linkage mechanism can synchronously link the backrest support group to fold or unfold, so that the backrest can be synchronously driven to fold or unfold, the frame and the backrest can be controlled to be synchronously folded or unfolded by one-step operation, the operation steps are simplified, the operation is simple and easy, and the use by parents is very convenient.
Further, in order to effectively and synchronously drive the backrest support group 2 to move, the backrest linkage mechanism 20 includes a sliding sleeve 21 disposed on the backrest support group 2 and capable of sliding along the backrest support group 2, and the upper enclosure frame 11 is provided with a linkage link 22 pivotally connected to the sliding sleeve 21.
Further, the supporting component 13 includes a first supporting tube 131 and a second supporting tube 132 which are pivoted in a crossing manner, one end of the first supporting tube 131 is pivoted with the upper surrounding frame 11, the other end of the first supporting tube 131 is slidably connected with the base frame 12, one end of the second supporting tube 132 is pivoted with the base frame 12, and the other end of the second supporting tube 132 is slidably connected with the upper surrounding frame 11, so that the upper surrounding frame 11 and the base frame 12 are driven to be relatively close to or relatively far away from each other through the relative rotation of the first supporting tube 131 and the second supporting tube 132. The first supporting tube 131 and the second supporting tube 132 which are arranged in a crossed manner drive the upper enclosing frame to be close to or far away from the underframe, so that the folding or unfolding of the frame is realized, the structure is simple, the assembly is convenient, and the operation is simple and easy.
The working principle of the embodiment is as follows:
in the process of folding or unfolding the frame, when the upper enclosure frame is driven to move from the unfolding position of the upper enclosure frame to the folding position of the upper enclosure frame or from the folding position of the upper enclosure frame to the unfolding position of the upper enclosure frame, the upper enclosure frame drives the sliding sleeve to move along the backrest support group through the linkage connecting rod, so that the backrest support group is synchronously driven to rotate to the backrest folding position or the backrest support position. The frame and the backrest can be controlled to be folded or unfolded synchronously by one-step operation, the operation steps are simplified, the operation is simple and easy, and the use by parents is very convenient.
Example two: as shown in fig. 6 to 16, the present embodiment is different from the first embodiment in that the backrest linking mechanism 20 includes a backrest sliding slot 23 disposed on the backrest support group 2 and a link plate 24 disposed on the upper enclosure frame 11 and capable of sliding along the backrest sliding slot 23 and rotating relative to the backrest support group 2, and the link plate 24 is also capable of rotating relative to the upper enclosure frame 11. In the process of folding or unfolding the frame, when the upper enclosing frame is driven to move from the unfolding position of the upper enclosing frame to the folding position of the upper enclosing frame or from the folding position of the upper enclosing frame to the unfolding position of the upper enclosing frame, the upper enclosing frame slides along the backrest sliding groove through the connecting rod piece and rotates relative to the upper enclosing frame and the backrest support group, so that the backrest support group can be synchronously driven to rotate to the backrest folding position or the backrest support position. In addition, when the frame is in the unfolding state, the connecting rod piece slides along the backrest sliding groove and rotates relative to the upper enclosing frame and the backrest support group, the backrest support group can be independently turned on the frame, and the frame is simple in structure and convenient to use.
Further, as shown in fig. 11 to 13, in order to improve the stability of the backrest support group after moving to the backrest support position, a latch 25 is disposed on the backrest support group 2, and a link bayonet 241, which is in snap-fit engagement with the latch 25 when the backrest support group 2 rotates to the backrest support position, is disposed on the link plate 24.
Further, as shown in fig. 14 to 16, the backrest support group 2 includes a first backrest support 26 and a second backrest support 27 having one end pivotally connected to the bottom frame 12, and the backrest linking mechanism 20 is disposed between the second backrest support 27 and the upper surrounding frame 11. The first back bracket 26 can be locked or moved relative to the second back bracket 27, and when the frame 1 is in the unfolded state, the first back bracket 26 can be disengaged from the second back bracket 27 so that the first back bracket 26 can be moved independently relative to the base frame 12, or the first back bracket 26 can be connected to the second back bracket 27 to be maintained in a back support position. Such a configuration may improve the versatility of the stroller, allowing a user to fold or unfold the first back support 26 independently as desired while the frame is in the unfolded position.
Specifically, for the convenience of user operation, the first backrest support 26 is pivotally connected to the base frame 12 or the second backrest support 27, and the first backrest support 26 can be independently turned between a backrest folding position and a backrest supporting position relative to the base frame 12. Of course, the first backrest support 26 and the second backrest support 27 may be movably connected by other structures, for example, the first backrest support 26 is slidably connected to the second backrest support 27, and when it is needed, the first backrest support 26 can be slidably separated from the second backrest support 27.
Specifically, the backrest support group 2 includes a backrest locking mechanism 28 that can lock the first backrest support 26 and the second backrest support 27, the backrest locking mechanism 28 includes a movable locking member 281 provided on one of the first backrest support 26 and the second backrest support 27, and a blocking portion 282 provided on the other of the first backrest support 26 and the second backrest support 27 and capable of being snap-fitted with the movable locking member 281, the first backrest support 26 is locked with the second backrest support 27 when the movable locking member 281 is snap-fitted with the blocking portion 282, and the first backrest support 26 can be rotated independently with respect to the second backrest support 27 and the base frame 12 when the movable locking member 281 is disengaged from the blocking portion 282. In this embodiment, the movable locking member 281 is disposed on the first backrest support 26 and can slide along the first backrest support 26, the blocking portion 282 is disposed on the second backrest support 26, and when the first backrest support 26 and the second backrest support 26 are both located at the backrest support position, the movable locking member 281 can be locked on the blocking portion 282 by moving the movable locking member 281 on the first backrest support 26, so as to effectively lock the first backrest support 26 and the second backrest support 27. When it is necessary to unlock the first back frame 26 and the second back frame 27, the first back frame 26 can be rotated independently relative to the second back frame 27 and the bottom frame 12 by moving the movable locking member 281 and sliding the movable locking member 281 along the first back frame 26 to disengage the blocking portion 282. Simple structure and convenient use. Further, for convenience of use, the backrest sliding groove 23 and the latch 25 are disposed on the second backrest bracket 27.
Further, as shown in fig. 6, the baby trailer with backrest automatic unfolding and folding further comprises a link locking mechanism 3 for locking or unlocking the support assembly 13 when the frame 1 is in the unfolded state, and in order to effectively achieve the locking or unlocking of the support assembly, the link locking mechanism 3 comprises a frame locking assembly 31 for locking the support assembly 13 on the upper enclosure frame 11 or the bottom frame 12 and a frame unlocking assembly 32 for unlocking the frame locking assembly 31. Specifically, as shown in fig. 17 and 18, the frame locking assembly 31 includes an engaging member 311 movably connected to the supporting assembly 13 and capable of engaging with the upper surrounding frame 11 or the bottom frame 12, and the frame unlocking assembly 32 includes a frame unlocking rope 321 for driving the engaging member 311 to disengage from the upper surrounding frame 11 or the bottom frame 12. More specifically, the engaging member 311 is pivotally connected to the supporting member 13, an inclined groove 312 is disposed on the engaging member 311, the frame release assembly 32 includes a movable bolt 322 fixedly connected to the frame release rope 321 and passing through the inclined groove 312, and a first return spring 323 for driving the movable bolt 322 to elastically return, and the movable bolt 322 is pulled by the frame release rope 321, so that the movable bolt 322 pushes the engaging member 311 to rotate to separate from the upper enclosure frame 11 or the bottom frame 12, and the supporting member 13 can be unlocked. In this embodiment, a clamping column is disposed on the bottom frame 12, and when the frame is in the unfolded state, the clamping member 311 can be clamped on the clamping column to lock the supporting component 13. In addition, an engaging member elastic reset member for pushing the engaging member to elastically reset is also disposed in the support assembly, when the frame lock releasing steel cable 321 releases the pulling force on the movable bolt, the first reset spring 323 pushes the movable bolt to reset, and the engaging member elastic reset member also pushes the engaging member to elastically reset to rotate toward the chassis.
As shown in fig. 6, 19 and 20, for the convenience of operation, the frame release assembly 32 includes a one-hand release operation member 324 provided on the upper surrounding frame 11 or the bottom frame 12, and the one-hand release operation member 324 is connected to the frame release cord 321 to drive the engaging member 311. Specifically, the one-handed lock release operator 324 is a one-handed button.
Further, a lock releasing inclined plane 3241 is arranged on the single-hand lock releasing operation member 324, a traction block 325 is arranged on the lock releasing inclined plane 3241, the traction block 325 is connected with the frame lock releasing steel rope 321, specifically, the lock releasing inclined plane 3241 and the corresponding traction block 325 are arranged on one side of the single-hand lock releasing operation member 324, one end of the corresponding frame lock releasing steel rope 321 is connected with the traction block 325, and the other end of the corresponding frame lock releasing steel rope passes through the single-hand lock releasing operation member 324 to extend to the other side of the single-hand lock releasing operation member 324 and is connected with the corresponding movable bolt 322. By pressing the one-handed release operator 324, the one-handed release operator 324 pushes the drawbar 325 through the release ramp 3241, causing the drawbar 325 to pull the frame release cable 321 to unlock the support assembly 13. Simple structure and convenient operation.
Further, in order to prevent the misoperation of the one-handed lock release operation member, the frame lock release assembly 32 includes a two-way button 326 slidably disposed on the upper enclosure 11 or the bottom frame 12 and capable of blocking the pressing of the one-handed lock release operation member 324. The one-hand unlocking operation piece can be operated only after the two buttons are unlocked, so that the bicycle frame is effectively prevented from being folded by mistake, and the safety of the bicycle frame is improved.
Further, in order to facilitate the use of the handle, the handle 4 can be rotated to a pushing position, a dragging position and a handle folding position at least, wherein the included angle between the handle 4 and the ground when the handle is located at the pushing position is larger than the included angle between the handle 4 and the ground when the handle is located at the dragging position, and the handle 4 is stacked on the bottom frame 12 when the handle is located at the handle folding position. As shown in fig. 21, the baby trailer with the backrest capable of being automatically unfolded and folded further comprises a handlebar locking mechanism 5 for locking or unlocking the handlebar 4 when the handlebar 4 is rotated to the pushing position, the pulling position and the folded position, wherein the handlebar locking mechanism 5 comprises a handlebar locking assembly 51 capable of locking the handlebar 4 on the frame 1 at a plurality of turnover angles relative to the frame 1 and a handlebar unlocking assembly 52 for unlocking the handlebar locking assembly 51. Specifically, the handlebar locking assembly 51 includes a segment member 512 disposed on the frame 1, and a handlebar lock pin 511 disposed on the handlebar 4 and capable of being engaged with the segment member 512, wherein the segment member 512 is provided with a plurality of lock openings 513 distributed along the circumferential direction and engaged with the handlebar lock pin 511. The handle release assembly 52 comprises a handle release pull rope 521 connected with the handle lock pin 511, a handle pull hook 522 slidably arranged on the handle 4 and connected with the handle release pull rope 521, and a second return spring 523 for driving the handle lock pin 511 to elastically return. When the handle 4 is rotated to a position corresponding to the corresponding locking hole 513, the handle lock pin 511 can be clamped on the locking hole 513 to be fixed on the frame. When the handle needs to be unlocked, the handle pull hook 522 is pushed only, so that the handle pull hook 522 pulls the handle lock pin 511 to be separated from the lock opening 513 through the handle lock release steel rope 521, and the structure is simple and easy to operate. When the handle 4 is required to be locked, when the handle is rotated to a position corresponding to the corresponding locking notch 513, the external force on the handle pull hook 522 is removed, so that the handle release steel cable 521 removes the pulling force on the handle lock pin 511, and at this time, the handle lock pin 511 moves towards the direction close to the segment member 512 under the elastic action of the second return spring 523 to be clamped into the locking notch 513, so as to realize the handle locking.
Further, in order to facilitate the seating of the baby and children, at least a seat plate 14 and a foothold 15 located below the base frame 12 are provided on the base frame 12. Specifically, when the backrest support group 2 is located at the backrest support position, an included angle between the backrest support group 2 and the base frame 12 is greater than or equal to 90 degrees, and when the backrest support group 2 is located at the backrest folding position, the backrest support group 2 is stacked on the base frame 12.
The foregoing is illustrative of the various embodiments provided in connection with the detailed description and the specific implementations of the application are not intended to be limited to the illustrations. Similar or identical methods, structures and the like, or several technical deductions or substitutions made on the premise of the conception of the application, should be regarded as the protection scope of the application.
Claims (14)
1. Baby carriage with automatic backrest unfolding and folding, characterized in that it comprises a carriage (1) having an unfolded state and a folded state, said carriage (1) comprising:
a chassis (12) provided with a wheel set (6) below;
an upper enclosure frame (11) provided above the base frame (12);
the supporting component (13) is movably arranged between the bottom frame (12) and the upper enclosing frame (11), so that the upper enclosing frame (11) is linked to move to an upper enclosing frame unfolding position which is far away from the accommodating space (7) formed by the bottom frame (12) and to move the upper enclosing frame (11) to an upper enclosing frame folding position which is close to the bottom frame (12);
the baby trailer with the backrest capable of automatically unfolding and folding further comprises:
the handle (4) is arranged on one side of the frame (1) and is used for pushing or dragging the frame (1);
back support group (2), its rotate set up in one side of accommodation space (7), just back support group (2) can rotate to a back support position and a back position of folding up, back support group (2) with be equipped with back link gear (20) between frame (1), work as go up enclose frame (11) from last enclose frame expansion position move to enclose frame folding up position or from last enclose frame folding up position move to when enclosing frame expansion position, back support group (2) pass through back link gear (20) correspond from back support position moves to back position of folding up or from back position of folding up to back support position.
2. The baby trailer with the backrest capable of automatically unfolding and folding according to claim 1, wherein the backrest linkage mechanism (20) comprises a sliding sleeve (21) which is arranged on the backrest support group (2) and can slide along the backrest support group (2), and the upper enclosure frame (11) is provided with a linkage connecting rod (22) which is pivoted with the sliding sleeve (21).
3. The baby carriage with automatic backrest unfolding according to claim 1, characterized in that the backrest linkage mechanism (20) comprises a backrest sliding slot (23) arranged on the backrest support group (2) and a link plate (24) arranged on the upper enclosure frame (11) and capable of sliding along the backrest sliding slot (23) and rotating relative to the backrest support group (2).
4. The baby carriage with the backrest capable of automatically unfolding and folding according to claim 3 is characterized in that a tenon (25) is arranged on the backrest support group (2), and a connecting rod bayonet (241) which is in snap fit with the tenon (25) when the backrest support group (2) rotates to the backrest support position is arranged on the connecting rod sheet (24).
5. Baby carriage with automatic backrest unfolding according to claim 1 characterized in that the backrest support group (2) comprises a first backrest support (26) and a second backrest support (27) pivoted at one end to the chassis (12), the first backrest support (26) being lockable or movable with respect to the second backrest support (27), the first backrest support (26) being disengageable from the second backrest support (27) in the unfolded state of the frame (1) so that the first backrest support (26) is movable independently with respect to the chassis (12) or the first backrest support (26) being connectable to the second backrest support (27) so as to be kept in a backrest support position.
6. The baby trailer with backrest auto-unfolding according to claim 5, characterized in that the first backrest support (26) is pivotally connected to the base frame (12) or the second backrest support (27), the first backrest support (26) being individually tiltable relative to the base frame (12) between a backrest folding position and a backrest support position.
7. Baby carriage with automatic backrest unfolding according to claim 5 characterized in that the backrest support group (2) comprises a backrest locking mechanism (28) locking the first backrest support (26) and the second backrest support (27), the backrest locking mechanism (28) comprising a movable locking member (281) provided on one of the first backrest support (26) and the second backrest support (27) and a blocking portion (282) provided on the other of the first backrest support (26) and the second backrest support (27) and snap-fittable with the movable locking member (281), the first backrest support (26) and the second backrest support (27) being locked when the movable locking member (281) and the blocking portion (282) are mutually snapped, the movable locking member (281) being disengaged from the blocking portion (282), the first back bracket (26) is independently movable relative to the second back bracket (27) and the chassis (12).
8. The baby carriage with automatic backrest unfolding according to claim 5 characterized in that the backrest linkage mechanism (20) is provided between the second backrest support (27) and the upper enclosure frame (11).
9. The baby carriage with the backrest capable of automatically unfolding according to the claim 8 is characterized in that the backrest linkage mechanism (20) comprises a backrest sliding slot (23) arranged on the second backrest bracket (27) and a link plate (24) arranged on the upper enclosure frame (11) and capable of sliding along the backrest sliding slot (23) and rotating relative to the second backrest bracket (27).
10. The baby carriage with the backrest capable of automatically unfolding and folding according to claim 9, characterized in that the second backrest support (27) is provided with a latch (25), and the link plate (24) is provided with a link bayonet (241) which is engaged with the latch (25) when the second backrest support (27) rotates to the backrest support position.
11. The baby carriage with the backrest automatic folding and unfolding according to claim 1, characterized in that the supporting component (13) comprises a first supporting tube (131) and a second supporting tube (132) which are pivoted in a crossing manner, one end of the first supporting tube (131) is pivoted with the upper enclosing frame (11), the other end of the first supporting tube (131) is slidably connected with the chassis (12), one end of the second supporting tube (132) is pivoted with the chassis (12), and the other end of the second supporting tube (132) is slidably connected with the upper enclosing frame (11), so that the upper enclosing frame (11) and the chassis (12) are driven to approach towards each other or move away from each other through the relative rotation of the first supporting tube (131) and the second supporting tube (132).
12. The baby trailer with automatic backrest unfolding according to claim 1 or 11, further comprising a link locking mechanism (3) for locking or unlocking the support assembly (13) when the frame (1) is in the unfolded state, the link locking mechanism (3) comprising a frame locking assembly (31) for locking the support assembly (13) on the upper enclosure frame (11) or the bottom frame (12) and a frame unlocking assembly (32) for unlocking the frame locking assembly (31).
13. Baby carriage with automatic backrest unfolding according to claim 1, characterized in that the handlebar (4) is at least rotatable to a pushing position, a dragging position and a handlebar folding position, wherein the angle between the handlebar (4) and the ground when in the pushing position is greater than the angle between the handlebar (4) and the ground when in the dragging position, the handlebar (4) is stacked on the chassis (12) when in the handlebar folding position, the baby carriage with automatic backrest unfolding further comprises a handlebar locking mechanism (5) for locking or unlocking the handlebar (4) when the handlebar (4) is rotated to the pushing position, the dragging position and the folding position, the handlebar locking mechanism (5) comprises a handlebar locking assembly (51) for locking the handlebar (4) on the frame (1) at a plurality of turnover angles with respect to the frame (1) and a handlebar release lock set for unlocking the handlebar locking assembly (51) And (52).
14. Baby carriage with automatic backrest unfolding according to claim 1 characterized in that at least a seat plate (14) and a footwell (15) under the chassis (12) are provided on the chassis (12).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110254468.3A CN112849251B (en) | 2021-03-09 | 2021-03-09 | Baby trailer with automatic backrest unfolding and folding function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110254468.3A CN112849251B (en) | 2021-03-09 | 2021-03-09 | Baby trailer with automatic backrest unfolding and folding function |
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| CN112849251A CN112849251A (en) | 2021-05-28 |
| CN112849251B true CN112849251B (en) | 2022-07-08 |
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| CN202110254468.3A Active CN112849251B (en) | 2021-03-09 | 2021-03-09 | Baby trailer with automatic backrest unfolding and folding function |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114872779B (en) * | 2022-02-16 | 2024-03-22 | 广东乐美达集团有限公司 | Tong Tuoche skeleton for baby |
| CN115107850B (en) * | 2022-08-09 | 2023-12-08 | 广东乐美达集团有限公司 | Infant Tong Tuoche skeleton capable of being unfolded and folded |
| CN115716497A (en) * | 2022-10-28 | 2023-02-28 | 好孩子儿童用品有限公司 | Child's bike |
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| CN112849251A (en) | 2021-05-28 |
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