CN211196326U

CN211196326U - Baby carriage frame and baby carriage

Info

Publication number: CN211196326U
Application number: CN201922206945.XU
Authority: CN
Inventors: 刘修平
Original assignee: Unitron Enterprises Zhuhai Co ltd
Current assignee: Unitron Enterprises Zhuhai Co ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-08-07
Anticipated expiration: 2029-12-11

Abstract

A baby carriage frame comprises a handle rod (10), a seat plate (20), a grab bar (30), a first locking mechanism (40), a rear foot bar (50), a support rod (60), a second locking mechanism (70) and a first unlocking mechanism (80), wherein the seat plate is connected with the handle rod, the grab bar is arranged at one end of the seat plate far away from the handle rod, the first locking mechanism is connected between the grab bar and the seat plate, the first locking mechanism is used for enabling the grab bar and the seat plate to realize relative locking, the support rod is arranged between the handle rod and the rear foot bar, the second locking mechanism is connected between the handle rod and the support rod, the second locking mechanism is used for enabling the handle rod and the support rod to realize relative locking, and the second locking mechanism is connected with the first locking mechanism, and the first unlocking mechanism is connected with the first locking mechanism and is configured to unlock the first locking mechanism and the second locking mechanism simultaneously. The utility model discloses the receipts of frame are closed efficiently higher.

Description

Baby carriage frame and baby carriage

Technical Field

The utility model relates to a perambulator technical field especially relates to a perambulator frame and perambulator.

Background

To reduce the burden on the adult, the infant can be placed in the stroller while the infant is out. The stroller is generally foldable, and can be folded when not needed, so that the stroller is convenient to store. At present, most of baby carriages have complicated folding steps, need multiple unlocking positions and have lower folding efficiency.

It is noted that the information disclosed in this background section of the invention is only for enhancement of understanding of the general background of the invention, and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a baby carriage frame and baby carriage to improve and close efficiency.

According to an aspect of the utility model, a baby carriage frame is provided, include:

a handle bar;

the seat plate is connected with the handle rod;

the armrest rod is arranged at one end of the seat plate far away from the handle rod;

the first locking mechanism is connected between the grab bar and the seat plate and used for realizing the relative locking of the grab bar and the seat plate;

a rear foot bar;

the support rod is arranged between the handle rod and the rear foot rod;

the second locking mechanism is connected with the handle rod and the supporting rod and used for realizing the relative locking of the handle rod and the supporting rod, and the second locking mechanism is connected with the first locking mechanism; and

and the first unlocking mechanism is connected with the first locking mechanism and is configured to unlock the first locking mechanism and the second locking mechanism simultaneously.

In some embodiments, the first locking mechanism comprises:

the first lock shell is connected with the grab rail and is internally provided with a first tooth part;

the second lock shell is connected with the seat plate and internally provided with a second tooth part; and

and the gear is arranged between the first lock shell and the second lock shell, and relative locking between the first lock shell and the second lock shell is realized when the gear is simultaneously meshed with the first tooth part and the second tooth part.

In some embodiments, the first unlocking mechanism includes an unlocking member provided on a side surface of the gear, and the unlocking member drives the gear to move in an axial direction of the gear when pressed to unlock the first lock case and the second lock case relative to each other.

In some embodiments, the first unlocking mechanism further comprises a first elastic member disposed on a side of the gear remote from the unlocking member, the first elastic member being configured to return the gear to a position in which the first lock housing and the second lock housing are locked with respect to each other.

In some embodiments, the first unlocking mechanism further comprises a first lock block and a first pull rope, a first end of the first pull rope is connected with the first lock block, a second end of the first pull rope is connected with the second locking mechanism, and the gear and the first lock block are configured to drive the first lock block to move when the gear moves along the axial direction of the gear so as to pull the first pull rope to unlock the second locking mechanism.

In some embodiments, a side of the gear, which is close to the first locking block, is provided with a first inclined surface, the first locking block is provided with a second inclined surface, and the first locking block moves along the radial direction of the gear under the cooperation of the first inclined surface and the second inclined surface when the gear moves along the axial direction of the gear.

In some embodiments, the first unlocking mechanism further comprises a second elastic member for returning the first lock piece to restore the locking of the second locking mechanism by the first pull cord.

In some embodiments, the second locking mechanism includes a second lock block for limiting the movement of the support rod in a direction approaching the back foot rod, the second end of the first pull rope is connected with the second lock block, and the first pull rope releases the lock of the second lock block on the movement of the support rod in a direction approaching the back foot rod relative to the handle rod when pulling the second lock block.

In some embodiments, the second locking mechanism further comprises a third locking block for limiting movement of the support bar in a direction away from the rearfoot bar, the third locking block being unlocked during rotation of the handlebar relative to the rearfoot bar.

In some embodiments, the handle bar further comprises a third locking mechanism and a second unlocking mechanism, the handle bar comprises a handle upper bar and a handle lower bar, the handle lower bar is connected with the support bar through the second locking mechanism, the third locking mechanism is connected between the handle upper bar and the handle lower bar for locking the handle upper bar and the handle lower bar, and the second unlocking mechanism is used for unlocking the third locking mechanism.

In some embodiments, the folding seat further comprises a front foot rod, a first connecting rod, a second connecting rod and a connecting mechanism, wherein the front foot rod is in an inverted T shape, the front foot rod, the handle rod and the rear foot rod are connected through the connecting mechanism, the first end of the first connecting rod is connected with the seat plate, the second end of the first connecting rod is connected with the second connecting rod, the middle part of the first connecting rod is connected with the front foot rod, and the second connecting rod is connected with the rear foot rod.

According to another aspect of the present invention, a stroller is provided, comprising the stroller frame.

Based on the technical scheme, the embodiment of the utility model provides an including the first release mechanism that can unblock first locking mechanism and second locking mechanism simultaneously for locking between bar and the seat board and the locking between handle pole and the bracing piece can unblock simultaneously, when closing the perambulator like this, can fold earlier the bar, locking between bracing piece and the handle pole is relieved simultaneously, can upwards mention the handle pole, make the handle pole be in upright state basically, continue to promote the handle pole and can make the whole downward folding of handle pole, and then realize the receipts of whole perambulator and close, it is simple to close the process, and convenient for operation is favorable to improving and receives the efficiency of closing.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic structural view of an embodiment of a stroller frame of the present invention.

Fig. 2 is a side view of an embodiment of the stroller frame of the present invention.

Fig. 3 is an exploded view of the first locking mechanism and the first unlocking mechanism of the stroller frame according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of the first locking mechanism and the first unlocking mechanism cooperating with each other according to an embodiment of the stroller frame of the present invention.

Fig. 5 is a schematic structural view of a gear according to an embodiment of the stroller frame of the present invention.

Fig. 6 is a schematic structural view of the engagement of the gear and the first lock block in an embodiment of the stroller frame of the present invention.

Figure 7 is an exploded view of a second locking mechanism in one embodiment of the stroller frame of the present invention.

Fig. 8 is a schematic view of a second locking mechanism in an embodiment of the stroller frame of the present invention.

Fig. 9 is a side view of the stroller frame in a first collapsed state according to an embodiment of the present invention.

Fig. 10 is a side view of the stroller frame in a second collapsed state according to an embodiment of the present invention.

Fig. 11 is a side view of the stroller frame in a third collapsed state according to an embodiment of the present invention.

Fig. 12 is a side view of the stroller frame in a fourth collapsed state according to an embodiment of the present invention.

Fig. 13 is a side view of the stroller frame in a fully collapsed position according to an embodiment of the present invention.

In the figure:

10. a handle bar; 11. a handle is arranged on the rod; 12. a lower rod is held; 20. a seat plate; 21. a connecting pipe; 30. a grab rail; 40. a first locking mechanism; 50. a rear foot bar; 60. a support bar; 70. a second locking mechanism; 80. a first unlocking mechanism; 90. a third locking mechanism; 100. a second unlocking mechanism; 110. a ceiling rear bar; 120. a ceiling front bar; 130. a back rest rod; 140. a stop lever; 150. a connecting mechanism; 160. a front foot bar; 170. a first link; 180. a second link; 190. a lock; 200. a front wheel; 210. a rear wheel;

41. a first lock case; 42. a second lock case; 43. a gear; 431. a first inclined plane;

81. unlocking the lock; 811. a claw portion; 82. a first elastic member; 83. a first lock block; 831. a second inclined plane; 84. a first pull cord; 85. a protective sleeve; 86. a second elastic member;

701. a second lock block; 702. a third locking block; 703. a first connecting rod; 704. a second connecting rod; 705. a third elastic member; 706. a fourth elastic member; 707. a fixed seat; 708. a slider; 709. a third connecting rod; 710. a sliding sleeve;

7071. a fourth aperture; 7072. a fifth aperture; 7073. a sixth hole;

7081. a first hole; 7082. a second hole; 7083. a third aperture;

7101. a first lock hole; 7102. a second lock hole; 7103. connecting holes;

151. a second draw cord.

Detailed Description

The technical solutions in 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. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the scope of the invention.

As shown in fig. 1 and 2, in an embodiment of a stroller frame provided by the present invention, the frame comprises a handle bar 10, a seat plate 20, a grab bar 30, a first locking mechanism 40, a rear foot bar 50, a support bar 60, a second locking mechanism 70 and a first unlocking mechanism 80, the seat plate 20 is connected to the handle bar 10, the grab bar 30 is mounted at an end of the seat plate 20 away from the handle bar 10, the first locking mechanism 40 is connected between the grab bar 30 and the seat plate 20, the first locking mechanism 40 is used for achieving relative locking between the grab bar 30 and the seat plate 20, the support bar 60 is arranged between the handle bar 10 and the rear foot bar 50, the second locking mechanism 70 is connected between the handle bar 10 and the support bar 60, the second locking mechanism 70 is used for achieving relative locking between the handle bar 10 and the support bar 60, and the second locking mechanism 70 is connected to the first locking mechanism 40, the first unlocking mechanism 80 is connected to the first locking mechanism 40, the first unlocking mechanism 80 is configured to unlock the first locking mechanism 40 and the second locking mechanism 70 simultaneously.

In the above embodiment, the frame includes the first unlocking mechanism 80 capable of simultaneously unlocking the first locking mechanism 40 and the second locking mechanism 70, so that the locking between the grab bar 30 and the seat plate 20 and the locking between the handle bar 10 and the support bar 60 can be simultaneously unlocked, when the stroller is folded, the grab bar 30 can be folded first, and the locking between the support bar 60 and the handle bar 10 is released, so that the handle bar 10 can be lifted upwards, the handle bar 10 is basically in an upright state, and the handle bar 10 can be folded downwards by continuously pushing the handle bar 10, thereby realizing folding of the entire stroller.

The grab bar 30 is T-shaped, the vertical part of the grab bar 30 is connected to the front side of the seat plate 20, and the transverse part of the grab bar 30 is used for the hands of the baby to lean against.

The grab bar 30 and the seat plate 20 are rotatably connected through a first locking mechanism 40, and when the first locking mechanism 40 is in a locking state, the grab bar 30 and the seat plate 20 are relatively fixed and cannot rotate relatively; when the first locking mechanism 40 is in the unlocked state, the grab bar 30 and the seat plate 20 can be relatively rotated.

The first end of the support rod 60 is slidably connected to the handle rod 10 through the second locking mechanism 70, when the second locking mechanism 70 is in a locking state, the handle rod 10 and the support rod 60 are relatively fixed, and the support rod 60 cannot slide relative to the handle rod 10; when the second lock mechanism 70 is in the unlocked state, the support rod 60 can slide relative to the handle bar 10.

The second end of the support rod 60 is rotatably connected to the rear foot bar 50, and the connection position of the support rod 60 and the rear foot bar 50 is relatively fixed, i.e. the support rod 60 does not slide along the rear foot bar 50, but the support rod 60 can rotate relative to the rear foot bar 50.

The first unlocking mechanism 80 is provided at the side of the first locking mechanism 40 at the side of the grab bar 30 where the operation is convenient, and the first unlocking mechanism 80 is located closer to the first locking mechanism 40 and the unlocking speed is faster.

As shown in fig. 3, the first locking mechanism 40 includes a first lock case 41, a second lock case 42 and a gear 43, the first lock case 41 is connected to the grab bar 30, a first tooth portion is provided in the first lock case 41, the second lock case 42 is connected to the seat plate 20, a second tooth portion is provided in the second lock case 42, the gear 43 is provided between the first lock case 41 and the second lock case 42, and the gear 43 simultaneously engages with the first tooth portion and the second tooth portion to realize relative locking between the first lock case 41 and the second lock case 42.

The seat plate 20 is provided with a connecting pipe 21, and the second lock case 42 is connected with the connecting pipe 21.

The first lock case 41 and the second lock case 42 are P-shaped, and a rod portion is connected to the grab bar 30 or the seat plate 20, and a circular portion is provided with a tooth portion engaged with the gear 43.

The first unlocking mechanism 80 includes an unlocking member 81 provided on a side surface of an end surface (a surface perpendicular to the axial direction of the gear 43) of the gear 43, and the drive gear 43 moves in the axial direction of the gear 43 when the unlocking member 81 is pressed to unlock the relative lock between the first lock case 41 and the second lock case 42.

When the first locking mechanism 40 is in a locked state, the gear 43 is engaged with the first tooth portion and the second tooth portion at the same time, so that the first lock case 41 and the second lock case 42 cannot rotate relatively; when it is necessary to unlock the first locking mechanism 40, the unlocking member 81 may be pressed to drive the gear 43 to move in the axial direction of the gear 43, so that the gear 43 is disengaged from the position where the gear 43 is simultaneously engaged with the first tooth portion and the second tooth portion, for example, as shown in fig. 4, the unlocking member 81 is disposed on the side of the gear 43 close to the first lock housing 41, and when the gear 43 completely enters the second lock housing 42, the relative locking between the first lock housing 41 and the second lock housing 42 is released, so that the grab bar 30 and the seat plate 20 can rotate relatively to realize folding.

The unlocking member 81 includes a claw portion 811, and the claw portion 811 abuts against the gear 43 so that the gear 43 is driven to move in the axial direction by the claw portion 811 when the unlocking member 81 is pressed. The claw portion 811 is provided with a chamfered surface on the outer side thereof, which facilitates the installation of the unlocking member 81 and prevents the unlocking member 81 from falling.

The first unlocking mechanism 80 further includes a first elastic member 82, the first elastic member 82 is disposed on a side of the gear 43 away from the unlocking member 81, and the first elastic member 82 is used for restoring the gear 43 to a position in which the first lock case 41 and the second lock case 42 are relatively locked.

Through setting up first elastic component 82, can disappear the back at the pressing force that unlocking piece 81 received, drive gear 43 through the effect of elastic potential energy resets, and then realizes that first locking mechanical system 40 resumes the locking state, guarantees perambulator's security.

To achieve the effect of unlocking the first locking mechanism 40 and the second locking mechanism 70 simultaneously, the first unlocking mechanism 80 further comprises a first locking block 83 and a first pulling rope 84, a first end of the first pulling rope 84 is connected with the first locking block 83, a second end of the first pulling rope 84 is connected with the second locking mechanism 70, and the gear 43 and the first locking block 83 are configured to drive the first locking block 83 to move when the gear 43 moves along the axial direction of the gear 43, so as to pull the first pulling rope 84 to achieve the unlocking of the second locking mechanism 70.

When the gear 43 moves in its axial direction, i.e., when the first locking mechanism 40 is unlocked, the first locking block 83 can be driven to move, and thus the second locking mechanism 70 is unlocked by the first pulling rope 84, i.e., the first locking mechanism 40 and the second locking mechanism 70 are unlocked simultaneously.

The first pulling rope 84 may be provided with a protective sleeve 85 on the outside thereof to prevent the first pulling rope 84 from being worn in the connection path with other components, which is beneficial for protecting the first pulling rope 84 and improving the service life of the first pulling rope 84.

As shown in fig. 5, a first inclined surface 431 is provided on a side of the gear 43 close to the first locking block 83, as shown in fig. 6, the first locking block 83 is provided with a second inclined surface 831, and when the gear 43 moves along the axial direction of the gear 43, the first locking block 83 moves along the radial direction of the gear 43 under the cooperation of the first inclined surface 431 and the second inclined surface 831.

The first inclined surface 431 on the gear 43 and the second inclined surface 831 on the first locking block 83 are matched with each other, and when the gear 43 moves along the axial direction of the gear, under the matching action of the first inclined surface 431 and the second inclined surface 831, the gear 43 drives the first locking block 83 to move along the radial direction of the gear 43, so that the first pull rope 84 is pulled, and the unlocking of the second locking mechanism 70 is realized.

The first unlocking mechanism 80 further includes a second elastic member 86, and the second elastic member 86 is used to reset the first locking piece 83 to restore the locking of the second locking mechanism 70 by the first pulling rope 84.

After the pressing force applied to the unlocking member 81 disappears, the gear 43 can be reset, and the first locking mechanism 40 is restored to the locking state; meanwhile, by providing the second elastic member 86, after the gear 43 is reset, the first lock block 83 can be reset by the elastic potential energy of the second elastic member 86, and further the first pull rope 84 can be reset, so that the second lock mechanism 70 is restored to the locked state.

The handlebar stem 10 comprises a handlebar upper stem 11 and a handlebar lower stem 12, the handlebar lower stem 12 is connected with the supporting rod 60 through a second locking mechanism 70, the frame further comprises a third locking mechanism 90 and a second unlocking mechanism 100, the third locking mechanism 90 is connected between the handlebar upper stem 11 and the handlebar lower stem 12 and used for achieving locking between the handlebar upper stem 11 and the handlebar lower stem 12, and the second unlocking mechanism 100 is used for unlocking the third locking mechanism 90.

As shown in fig. 7 and 8, the second locking mechanism 70 includes a second lock block 701 for restricting the movement of the support lever 60 in the direction approaching the rear foot lever 50, the second end of the first rope 84 is connected to the second lock block 701, and when the first rope 84 pulls the second lock block 701, the second lock block 701 unlocks the movement of the support lever 60 in the direction approaching the rear foot lever 50 with respect to the handle lever 10.

When the first pull rope 84 pulls the second lock block 701, the second lock block 701 retracts, and the second lock block 701 releases the lock of the support rod 60 on the movement of the handle lower rod 12 in the direction away from the handle upper rod 11, so that the support rod 60 can move in the direction away from the handle upper rod 11 relative to the handle lower rod 12, and the handle lower rod 12 can be folded forward.

It can be seen that the above-mentioned first unlocking mechanism 80 simultaneously unlocks the first locking mechanism 40 and the second locking mechanism 70, which may refer to the locking of the second locking block 701 for limiting the movement of the support bar 60 in the direction away from the handlebar upper bar 11, which simultaneously unlocks the first locking mechanism 40 and the second locking mechanism 70.

The second locking mechanism 70 further includes a third locking piece 702 for limiting the movement of the support rod 60 in a direction away from the rear foot bar 50, and the third locking piece 702 is unlocked during the rotation of the handle lever 10 relative to the rear foot bar 50.

Further, the second locking mechanism 70 further includes a first connecting rod 703, a second connecting rod 704, a third elastic member 705, a fourth elastic member 706, a fixing seat 707, a sliding block 708, a third connecting rod 709, and a sliding sleeve 710.

The sliding sleeve 710 is sleeved on the handle lower rod 12, and the sliding sleeve 710 is provided with a first locking hole 7101, a second locking hole 7102 and a connecting hole 7103. The first locking hole 7101 and the second locking hole 7102 are both holes with openings on one side in the circumferential direction, the opening of the first locking hole 7101 faces the direction far away from the handle upper rod 11, and the opening of the second locking hole 7102 faces the direction close to the handle upper rod 11. The connecting holes 7103 are used for connecting the sliding sleeve 710 and the supporting rod 60.

The sliding sleeve 710 is connected to the first end of the support rod 60, the first locking hole 7101 is disposed at an end of the sliding sleeve 710 far away from the handle upper rod 11, and the second locking block 701 is inserted into the first locking hole 7101 in the locking state to limit the movement of the sliding sleeve 710 from the position locked with respect to the handle lower rod 12 to the direction far away from the handle upper rod 11. The first end of the first pulling rope 84 is connected with the first locking block 83, the second end of the first pulling rope 84 is connected with the second locking block 701, and when the first pulling rope 84 is pulled, the second locking block 701 is driven to be separated from the first locking hole 7101, so that the limitation of the movement of the sliding sleeve 710 along the direction far away from the handle upper rod 11 is removed.

The second locking hole 7102 is disposed at an end of the sliding sleeve 710 close to the handle upper bar 11, and the third locking block 702 is inserted into the second locking hole 7102 in the locking state to limit the movement of the sliding sleeve 710 from the position locked with respect to the handle lower bar 12 to the direction close to the handle upper bar 11.

The baby carriage frame further comprises a front foot rod 160, a seat plate 20, a first connecting rod 170, a second connecting rod 180 and a connecting mechanism 150, wherein the front foot rod 160 is inverted T-shaped, the seat plate 20 is connected with a handle lower rod 12, the front foot rod 160, the handle lower rod 12 and the rear foot rod 50 are connected through the connecting mechanism 150, the first end of the first connecting rod 170 is connected with the seat plate 20, the second end of the first connecting rod 170 is connected with the second connecting rod 180, the middle part of the first connecting rod 170 is connected with the front foot rod 160, and the second connecting rod 180 is connected with the rear foot rod 50.

By providing the first link 170 and the second link 180, better support for the seat plate 20, the front leg bar 160, and the rear leg bar 50 can be achieved. The first end of the first link 170 is rotatably connected to the seat plate 20, the second end of the first link 170 is rotatably connected to the second link 180, the middle of the first link 170 is rotatably connected to the front leg bar 160, and the second link 180 is rotatably connected to the rear leg bar 50, so as to facilitate folding of the frame.

Front foot bar 160, handlebar lower bar 12 and rear foot bar 50 are connected by a connection mechanism 150, and connection mechanism 150 is configured to allow relative rotation between front foot bar 160, handlebar lower bar 12 and rear foot bar 50.

The coupling mechanism 150 is provided with a fourth locking mechanism and a second pull rope 151, and the second pull rope 151 is connected to the fourth locking mechanism.

The first end of the second pulling rope 151 is connected to the third locking block 702, the second end of the second pulling rope 151 is connected to the fourth locking mechanism in the connecting mechanism 150, and when the handle lower rod 12 rotates relative to the front foot rod 160 and the rear foot rod 50, the second pulling rope 151 is pulled to drive the third locking block 702 to disengage from the second locking hole 7102, so as to release the limitation of the movement of the sliding sleeve 710 in the direction close to the handle upper rod 11.

Fixing base 707 sets up the inside at handle lower beam 12, the top surface and the bottom surface of fixing base 707 are equipped with the recess respectively, slider 708 is the U-shaped, vertical part includes first gleitbretter and second gleitbretter, when slider 708 is inserted on fixing base 707, first gleitbretter and second gleitbretter block respectively in the recess of fixing base 707 top surface and bottom surface, the three side (being the front side, rear side and right side) of recess all is equipped with the stop part, have limiting displacement to first gleitbretter and second gleitbretter.

A first lock cavity and a second lock cavity are arranged on the fixed seat 707, a fourth hole 7071, a fifth hole 7072 and a sixth hole 7073 are respectively arranged on the top surface and the bottom surface of the fixed seat 707, the fourth hole 7071 on the top surface and the fourth hole 7071 on the bottom surface are just opposite and are communicated with the first lock cavity, and the fifth hole 7072 on the top surface and the fifth hole 7072 on the bottom surface are just opposite and are communicated with the second lock cavity.

The first lock cavity of the fixing seat 707 is used for accommodating the second lock block 701, the second lock block 701 moves relative to the fixing seat 707 under the action of the first pull rope 84 to extend out of or retract into the first lock cavity, a first hole 7081 is formed in the sliding block 708, the first connecting rod 703 is connected with the second lock block 701 and inserted into the first hole 7081, and the first hole 7081 is configured to be capable of driving the second lock block 701 to retract into the first lock cavity under the action of the first pull rope 84 and driving the second lock block 701 to move along the extending direction of the second pull rope 151 when the sliding block 708 moves relative to the fixing seat 707.

The second lock cavity of the fixing seat 707 is used for accommodating the third lock block 702, the sliding block 708 is slidably disposed relative to the fixing seat 707, one end of the sliding block 708, which is away from the handle upper rod 11, is connected to the second pull rope 151, the sliding block 708 is provided with a second hole 7082, the second hole 7082 is shaped and configured to enable the third lock block 702 to be driven to extend out of or retract into the second lock cavity when the sliding block 708 moves relative to the fixing seat 707, the second connecting rod 704 is connected to the third lock block 702, and the third lock block 702 is inserted into the second hole 7082.

The third elastic member 705 is disposed in the first lock cavity, the third elastic member 705 is connected to the second lock block 701, and the third elastic member 705 is used to drive the second lock block 701, which is separated from the first lock hole 7101, to be reinserted into the first lock hole 7101, so that the second lock block 701 returns to the lock position.

A fourth elastic element 706 is disposed in the second locking cavity, the fourth elastic element 706 is connected to the third locking block 702, and the fourth elastic element 706 is configured to drive the third locking block 702 disengaged from the second locking hole 7102 to be reinserted into the second locking hole 7102, so that the third locking block 702 is restored to the locking position.

Specifically, the first sliding piece and the second sliding piece of the sliding block 708 have a first hole 7081, a second hole 7082, and a third hole 7083, respectively, the first hole 7081 has a right triangle shape, two right-angled sides are parallel and perpendicular to the extending direction of the second rope 151, respectively, and the second hole 7082 has a long hole shape that is inclined with respect to the extending direction of the second rope 151. The third hole 7083 is also in the form of an elongated hole, and the longitudinal direction thereof is parallel to the extending direction of the second cord 151.

The first connecting rod 703 passes through a first hole 7081 on the first sliding piece of the sliding block 708, a fourth hole 7071 on the fixed seat 707, a first lock cavity on the fixed seat 707 and a first hole 7081 on the second sliding piece of the sliding block 708, and the second connecting rod 704 passes through a second hole 7082 on the first sliding piece of the sliding block 708, a fifth hole 7072 on the fixed seat 707, a second lock cavity on the fixed seat 707 and a second hole 7082 on the second sliding piece of the sliding block 708. The third connecting rod 709 passes through the third hole 7083 on the first slide of the slider 708, the sixth hole 7073 on the fixed seat 707, and the third hole 7083 on the second slide of the slider 708.

The stroller frame further includes a ceiling rear bar 110, a ceiling front bar 120, a back bar 130, a bar 140, a first link 170, a second link 180, a latch 190, a front wheel 200, and a rear wheel 210.

Two front wheels 200 are respectively mounted on the left and right sides of the front leg bar 160, and two rear wheels 210 are respectively mounted on the left and right sides of the rear leg bar 50. The locking member 190 is mounted on the rear leg 50 such that when the frame is folded, the locking member 190 locks the support rod 60 to prevent the frame from being accidentally unfolded. The front end of the seat plate 20 is provided with a stopper 140 for restraining the legs of the infant. The back lever 130 is provided at the rear side of the seat plate 20. The front ceiling rod 120 and the rear ceiling rod 110 are both disposed at the joint of the handle upper rod 11 and the handle lower rod 12 for supporting the ceiling of the vehicle frame.

The following describes the folding process of an embodiment of the stroller frame of the present invention with reference to fig. 9 to 13:

as shown in fig. 9, the front ceiling rod 120 is folded upwards to be substantially parallel to the upper handle rod 11;

next, the first unlocking mechanism 80 is operated to simultaneously unlock the first locking mechanism 40 and the second locking piece 701 of the second locking mechanism 70, and after the first locking mechanism 40 is unlocked, the grab bar 30 can be folded downward relative to the seat plate 20, so that the transverse portion of the grab bar 30 is folded to a position substantially at the same level as the seat plate 20;

after the second locking mechanism 70 is unlocked, the sliding sleeve 710 can move downward relative to the handle lower rod 12, and at this time, the handle upper rod 11 is lifted upward, so that the handle upper rod 11 and the handle lower rod 12 are both lifted to be substantially perpendicular to the ground, as shown in fig. 10;

then, the second unlocking mechanism 100 is operated to unlock the third locking mechanism 90, so that the handle upper rod 11 and the handle lower rod 12 can rotate relatively, the handle upper rod 11 is pushed continuously, the handle upper rod 11 is folded backward and downward relative to the handle lower rod 12, and the handle lower rod 12 is folded forward and downward relative to the rear foot bar 50, as shown in fig. 11;

during the rotation of the handle lower bar 12 relative to the front foot bar 160 and the rear foot bar 50, the fourth locking mechanism in the connecting mechanism 150 pulls the second pull rope 151 to retract the third locking block 702, and the second locking mechanism 70 is completely unlocked, and at this time, the sliding sleeve 710 can move upward relative to the handle lower bar 12 until it passes over the fixed seat 707 and continues to move upward, as shown in fig. 12, so that the handle upper bar 11 and the handle lower bar 12 can continue to be folded forward;

as shown in fig. 13, the handlebar upper bar 11 and the handlebar lower bar 12 are folded to a position near the front side of the front foot bar 160, and the frame is in a fully folded state, and the volume is minimized. In the fully retracted state, the locking member 190 is engaged with the support rod 60 to prevent the frame from being accidentally unfolded.

Based on foretell perambulator frame, the utility model discloses still provide a perambulator, this perambulator includes foretell perambulator frame. The positive technical effects of the stroller frame in the above embodiments are also applicable to the stroller, and are not described herein.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the utility model discloses a do not deviate from under the prerequisite of the principle, still can be right the utility model discloses a specific embodiment modifies or carries out the equivalent replacement to some technical features, and these are modified and should be covered with the equivalent replacement in the middle of the technical scheme scope of the utility model.

Claims

1. A stroller frame, comprising:

a handle bar (10);

a seat plate (20) connected to the handle bar (10);

the grab rail rod (30) is arranged at one end of the seat plate (20) far away from the handle rod (10);

a first locking mechanism (40) connected between the grab bar (30) and the seat plate (20) for achieving relative locking of the grab bar (30) and the seat plate (20);

a rear foot bar (50);

a support bar (60) disposed between the handle bar (10) and the rear foot bar (50);

the second locking mechanism (70) is connected with the handle rod (10) and the supporting rod (60) and used for enabling the handle rod (10) and the supporting rod (60) to realize relative locking, and the second locking mechanism (70) is connected with the first locking mechanism (40); and

a first unlocking mechanism (80) connected to the first locking mechanism (40) and configured to simultaneously unlock the first locking mechanism (40) and the second locking mechanism (70).

2. The stroller frame according to claim 1, characterized in that the first locking mechanism (40) comprises:

a first lock case (41) connected with the grab bar (30) and provided with a first tooth part therein;

a second lock case (42) connected with the seat plate (20) and provided with a second tooth part therein; and

a gear (43) arranged between the first lock housing (41) and the second lock housing (42), the gear (43) effecting a relative locking between the first lock housing (41) and the second lock housing (42) when simultaneously engaging the first and second teeth.

3. The stroller frame according to claim 2, characterized in that the first unlocking mechanism (80) comprises an unlocking member (81) arranged laterally to an end face of the gear wheel (43), the unlocking member (81) when pressed driving the gear wheel (43) in an axial direction of the gear wheel (43) for unlocking the relative locking between the first lock housing (41) and the second lock housing (42).

4. The stroller frame according to claim 3, characterized in that the first unlocking mechanism (80) further comprises a first elastic member (82), the first elastic member (82) being arranged on a side of the gear wheel (43) remote from the unlocking member (81), the first elastic member (82) being adapted to reset the gear wheel (43) to a position in which the first lock housing (41) and the second lock housing (42) are relatively locked.

5. The stroller frame according to claim 2, wherein the first unlocking mechanism (80) further comprises a first lock block (83) and a first pull rope (84), a first end of the first pull rope (84) is connected with the first lock block (83), a second end of the first pull rope (84) is connected with the second locking mechanism (70), and the gear (43) and the first lock block (83) are configured to drive the first lock block (83) to move when the gear (43) moves along the axial direction of the gear (43) so as to pull the first pull rope (84) to unlock the second locking mechanism (70).

6. The stroller frame according to claim 5, characterized in that a side of the gear (43) close to the first locking piece (83) is provided with a first inclined surface (431), the first locking piece (83) is provided with a second inclined surface (831), and the first locking piece (83) moves along a radial direction of the gear (43) under the cooperation of the first inclined surface (431) and the second inclined surface (831) when the gear (43) moves along the axial direction of the gear (43).

7. The stroller frame according to claim 5, characterized in that the first unlocking mechanism (80) further comprises a second elastic member (86), the second elastic member (86) being used to reset the first locking piece (83) to restore the locking of the second locking mechanism (70) by the first pull cord (84).

8. The stroller frame according to claim 5, wherein the second locking mechanism (70) comprises a second lock block (701) for limiting the movement of the support rod (60) in a direction approaching the rear foot rod (50), the second end of the first pull rope (84) is connected to the second lock block (701), and the second lock block (701) is unlocked by the second lock block (701) when the second lock block (701) is pulled by the first pull rope (84).

9. The stroller frame according to claim 1, wherein the second locking mechanism (70) further comprises a third locking piece (702) for limiting the movement of the support rod (60) in a direction away from the rear foot bar (50), the third locking piece (702) being unlocked during the rotation of the handle bar (10) relative to the rear foot bar (50).

10. The stroller frame according to claim 1, further comprising a third locking mechanism (90) and a second unlocking mechanism (100), wherein the handlebar stem (10) comprises a handlebar upper stem (11) and a handlebar lower stem (12), the handlebar lower stem (12) is connected with the support stem (60) through the second locking mechanism (70), the third locking mechanism (90) is connected between the handlebar upper stem (11) and the handlebar lower stem (12) for locking between the handlebar upper stem (11) and the handlebar lower stem (12), and the second unlocking mechanism (100) is used for unlocking the third locking mechanism (90).

11. The stroller frame according to claim 1, further comprising a front foot bar (160), a first connecting rod (170), a second connecting rod (180) and a connecting mechanism (150), wherein the front foot bar (160) is in an inverted T shape, the front foot bar (160), the handle bar (10) and the rear foot bar (50) are connected through the connecting mechanism (150), a first end of the first connecting rod (170) is connected with the seat plate (20), a second end of the first connecting rod (170) is connected with the second connecting rod (180), a middle portion of the first connecting rod (170) is connected with the front foot bar (160), and the second connecting rod (180) is connected with the rear foot bar (50).

12. A stroller comprising a stroller frame according to any one of claims 1 to 11.