CN210391282U - Baby carriage frame and baby carriage - Google Patents

Abstract

The utility model relates to a baby carriage frame and a baby carriage, wherein the baby carriage frame comprises a handle upper rod, a handle lower rod, a front foot rod, a rear foot rod, a support rod, a first locking mechanism and a connecting mechanism, and the handle lower rod is connected with the handle upper rod; one end of the supporting rod is connected with the lower handle rod, the second end of the supporting rod is connected with the rear foot rod, the first locking mechanism is used for locking the lower handle rod and the supporting rod and partially unlocking the lower handle rod and the supporting rod after the upper handle rod and the lower handle rod are folded relatively, so that the first end of the supporting rod can slide relative to the lower handle rod in the direction far away from the upper handle rod; the connecting mechanism is used for connecting the front foot rod, the rear foot rod and the handle lower rod, and drives the first locking mechanism to be unlocked completely after the handle lower rod rotates relative to the front foot rod and the rear foot rod, so that the supporting rod can slide relative to the handle lower rod along the direction close to the handle upper rod. The utility model discloses receive to close easy operation, it is more convenient to receive to close.

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

When the infant is out, the infant is usually put in a stroller to reduce the burden on the adult. When the baby carriage is not needed, the baby carriage can be folded, so that the size is reduced, and the baby carriage is convenient to store.

At present, most of the strollers are foldable, but the folding mode is various. For the frame of the high-landscape baby carriage, the handle rod usually comprises an upper section and a lower section, which brings more difficulty to the folding of the frame. The frame usually needs to be provided with a plurality of locking positions, and can be operated only after the locking positions are respectively unlocked when the frame is folded, so that the frame is inconvenient to operate, the locking mechanism is complex, the failure rate is high, and the use experience is reduced.

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 aims at providing a baby carriage frame and perambulator to improve the convenience that closes.

In order to achieve the above object, the utility model provides a baby carriage frame, include:

a handle is arranged on the rod;

the handle lower rod is connected with the handle upper rod;

a front foot bar;

a rear foot bar;

the first end of the supporting rod is connected with the handle lower rod, and the second end of the supporting rod is connected with the rear foot rod;

the first locking mechanism is used for locking the handle lower rod and the supporting rod and partially unlocking after the handle upper rod and the handle lower rod are folded relatively, so that the first end of the supporting rod can slide relative to the handle lower rod along the direction far away from the handle upper rod; and

and the connecting mechanism is used for connecting the front foot rod, the rear foot rod and the handle lower rod, and driving the first locking mechanism to be completely unlocked after the handle lower rod rotates relative to the front foot rod and the rear foot rod, so that the support rod can slide relative to the handle lower rod along the direction close to the handle upper rod.

In some embodiments, the first locking mechanism comprises:

the sliding sleeve is sleeved on the lower handle rod and connected with the first end of the supporting rod, and a first locking hole is formed in one end of the sliding sleeve, which is far away from the upper handle rod;

the first locking block is inserted in the first locking hole and used for limiting the sliding sleeve to move from a position which is relatively locked with the lower handle rod to a direction far away from the upper handle rod; and

the first end of the first flexible part is connected with the handle upper rod, the second end of the first flexible part is connected with the first lock block, and the first lock block is driven to be separated from the first lock hole when the handle upper rod is folded relative to the handle lower rod, so that the limitation of the movement of the sliding sleeve in the direction away from the handle upper rod is removed.

In some embodiments, the first locking mechanism further comprises a first elastic member for driving the first lock block disengaged from the first lock hole to be reinserted into the first lock hole.

In some embodiments, one end of the sliding sleeve, which is close to the handle upper rod, is provided with a second locking hole, and the first locking mechanism further comprises:

the second locking block is inserted in the second locking hole and used for limiting the sliding sleeve to move from a position which is relatively locked with the lower handle rod to a direction close to the upper handle rod; and

and the first end of the second flexible piece is connected with the second locking block, and the second end of the second flexible piece is connected with the connecting mechanism and is used for driving the second locking block to be separated from the second lock hole when the lower handle bar rotates relative to the front foot bar and the rear foot bar so as to remove the limitation of the movement of the sliding sleeve along the direction close to the upper handle bar.

In some embodiments, the first locking mechanism further comprises:

the fixed seat is arranged inside the lower handle rod and is provided with a first locking cavity for accommodating the second locking block;

the sliding block is arranged in a sliding manner relative to the fixed seat, one end of the sliding block, which is far away from the handle upper rod, is connected with the second flexible piece, and is provided with a first hole, and the shape of the first hole is configured to drive the second locking block to extend out of or retract into the first locking cavity when the sliding block moves relative to the fixed seat; and

and the first connecting rod is connected with the second locking block and inserted into the first hole.

In some embodiments, the fixing base is further provided with a second lock cavity for accommodating the first lock block, the first lock block moves relative to the fixing base under the action of the first flexible member to extend out of or retract into the second lock cavity, the slider is provided with a second hole, the first locking mechanism further comprises a second connecting rod, the second connecting rod is connected with the first lock block and inserted into the second hole, and the second hole is configured to be capable of driving the first lock block to retract into the second lock cavity under the action of the first flexible member and driving the first lock block to move along the extending direction of the second flexible member when the slider moves relative to the fixing base.

In some embodiments, the first locking mechanism further comprises a second elastic member for driving the second locking block disengaged from the second locking hole to be reinserted into the second locking hole.

In some embodiments, the connection mechanism comprises:

the connecting seat is arranged on the front foot rod and is provided with a first mounting groove, and the handle lower rod is rotatably arranged in the first mounting groove; and

the bayonet lock is movably arranged on the handle lower rod and connected with the second flexible part, and is used for moving relative to the handle lower rod when the handle lower rod rotates relative to the connecting seat so as to drive the second flexible part to move.

In some embodiments, the connecting base is provided with a first ramp surface that contacts and drives the detent to move when the handlebar stem is rotated relative to the connecting base.

In some embodiments, the connecting mechanism further comprises a first sleeve sleeved on the outer periphery of the handle lower rod, and the outer periphery of the first sleeve is provided with a first rib.

In some embodiments, the connecting seat is further provided with a second mounting groove, and the rear foot rod is rotatably mounted in the second mounting groove.

In some embodiments, the connecting mechanism further comprises a second sleeve sleeved on the periphery of the rear foot rod, and the periphery of the second sleeve is provided with a second rib.

In some embodiments, the stroller frame further comprises:

the second locking mechanism is used for locking the handle upper rod and the handle lower rod; and

and the unlocking mechanism is used for unlocking the second locking mechanism.

In some embodiments, the stroller frame further comprises a seat plate, a first link and a second link, the front leg bar is in an inverted T shape, the seat plate is connected to the handle lower bar, a first end of the first link is connected to the seat plate, a second end of the first link is connected to the second link, a middle portion of the first link is connected to the front leg bar, and the second link is connected to the rear leg bar.

In some embodiments, the stroller frame further comprises a first rear wheel, a second rear wheel, and a brake mechanism, the first rear wheel and the second rear wheel being rotatably mounted on the rear foot bar, the brake mechanism being configured to secure the first rear wheel and the second rear wheel relative to the rear foot bar.

In some embodiments, the braking mechanism comprises:

a first bar;

a second bar;

the first rotating seat is rotatably arranged on the rear foot rod and is used for driving the first stop lever to move along the axial direction of the first rear wheel when rotating relative to the first rear wheel so as to block the rotation of the first rear wheel;

the brake pedal is arranged on the first rotating seat;

the second rotating seat is rotatably arranged on the rear foot rod and is used for driving the second stop lever to move along the axial direction of the second rear wheel when rotating relative to the second rear wheel so as to stop the second rear wheel from rotating; and

and the first end of the third flexible part is connected with the first rotating seat, and the second end of the third flexible part is connected with the second rotating seat and used for driving the second rotating seat to rotate after the brake pedal is stepped down and drives the first rotating seat to rotate.

In some embodiments, the first rotating seat is provided with a second inclined surface, and the second inclined surface is used for contacting the first stop lever and driving the first stop lever to move; and/or the second rotating seat is provided with a third inclined surface which is used for contacting the second stop lever and driving the second stop lever to move.

In some embodiments, the first rotating seat is provided with a first stop groove, and the first stop groove is arranged at the tail end of the second inclined surface and enters the first stop groove after the first stop lever is driven to move to a position for blocking the first rear wheel from rotating; and/or the second rotating seat is provided with a second stop groove which is arranged at the tail end of the third inclined plane so as to enter the second stop groove after the second stop rod is driven to move to a position for stopping the second rear wheel from rotating.

In order to achieve the above object, the present invention further provides a stroller, including the stroller frame.

Based on the technical scheme, the utility model discloses when closing, after removing the locking between hand (hold) upper boom and the hand (hold) lower boom, can make the partial unblock of first locking mechanism in the folding in-process of hand (hold) upper boom for the hand (hold) lower boom, thereby make hand (hold) upper boom and hand (hold) lower boom rotate downwards together, in the rotation process, can make first locking mechanism unblock completely again, thereby make hand (hold) upper boom and hand (hold) lower boom continue to fold forward until realizing completely closing, close easy operation, it is more convenient to close; and the first locking mechanism is set to be unlocked in two steps, so that the number of the locking mechanisms is reduced, and the structure is simplified.

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 in one embodiment of the stroller frame of the present invention.

Fig. 4 is a schematic view of the assembled first locking mechanism of the stroller frame according to an embodiment of the present invention.

Fig. 5 is a schematic view of the first locking mechanism and the second locking mechanism of the stroller frame according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of the coupling mechanism in an embodiment of the stroller frame of the present invention.

Fig. 7 is an exploded view of the attachment mechanism of one embodiment of the stroller frame of the present invention.

Figure 8 is a cross-sectional view of the assembled coupling mechanism of one embodiment of the stroller frame of the present invention.

Fig. 9 is an exploded view of the brake mechanism of the stroller frame according to an embodiment of the present invention.

Fig. 10 is a schematic view of the assembled brake mechanism of the stroller frame according to an embodiment of the present invention.

Fig. 11 is a schematic view of the stroller frame in a first folded state according to an embodiment of the present invention.

Fig. 12 is a schematic view of the stroller frame in a second folded state according to an embodiment of the present invention.

Fig. 13 is a schematic structural view of the stroller frame in a third folded state according to an embodiment of the present invention.

Fig. 14 is a schematic structural view of an embodiment of the stroller frame in a fourth folded state.

Fig. 15 is a schematic view of the stroller frame in a fully folded state according to an embodiment of the present invention.

In the figure:

10. a handle is arranged on the rod; 20. a lower rod is held; 30. a front foot bar; 31. a foot pedal; 40. a rear foot bar; 50. a support bar; 60. a ceiling pole; 70. a grab rail; 80. a back rest rod; 90. a seat adjustment mechanism; 100. a first locking mechanism; 110. a seat plate; 120. a support sheet; 130. a backrest adjustment mechanism; 140. a first link; 150. a second link; 160. a first rear wheel; 170. a second rear wheel; 180. a first front wheel; 190. a second front wheel; 200. a connecting mechanism; 210. a support member; 300. a second locking mechanism; 301. a turntable;

101. a sliding sleeve; 102. a first lock block; 103. a first flexible member; 104. a first elastic member; 105. a second lock block; 106. a second flexible member; 107. a fixed seat; 108. a slider; 109. a first connecting rod; 111. a second connecting rod; 112. a second elastic member; 113. a third connecting rod;

1011. a first lock hole; 1012. a second lock hole; 1013. connecting holes;

1071. a fourth aperture; 1072. a fifth aperture; 1073. a sixth hole;

1081. a first hole; 1082. a second hole; 1083. a third aperture;

201. a connecting seat; 202. a bayonet lock; 203. a first sleeve; 204. a second sleeve; 205. a first rivet; 206. a second rivet; 207. a connecting pin; 208. a handle; 209. a third rivet;

400. a third flexible member; 401. a first mounting seat; 402. a first support base; 403. a first rotating base; 404. a first bar; 405. a first baffle plate; 406. a third elastic member; 407. a fifth elastic member; 408. a first baffle plate; 409. a fourth rivet;

501. a second mounting seat; 502. a second support seat; 503. a second rotary base; 504. a second bar; 505. a second baffle plate; 506. a fourth elastic member; 507. a sixth elastic member; 508. a second baffle; 509. and a fifth rivet.

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 the stroller frame provided in the present invention, the frame comprises a handle upper bar 10, a handle lower bar 20, a front leg bar 30, a rear leg bar 40, a support bar 50, a first locking mechanism 100 and a connecting mechanism 200, the handle lower bar 20 is connected to the handle upper bar 10, a first end of the support bar 50 is connected to the handle lower bar 20, a second end of the support bar 50 is connected to the rear leg bar 40, the first locking mechanism 100 is used for locking the handle lower bar 20 and the support bar 50 and partially unlocking the handle upper bar 10 and the handle lower bar 20 after being folded relatively, so that the first end of the support bar 50 can slide relative to the handle lower bar 20 in a direction away from the handle upper bar 10; the connecting mechanism 200 is used to connect the front leg bar 30, the rear leg bar 40 and the handle lower bar 20, and to completely unlock the first locking mechanism 100 after the handle lower bar 20 rotates relative to the front leg bar 30 and the rear leg bar 40, so that the support bar 50 can slide relative to the handle lower bar 20 in a direction close to the handle upper bar 10.

When the folding device is used, after the locking between the upper handle bar 10 and the lower handle bar 20 is released, the first locking mechanism 100 can be partially unlocked, namely, unlocked in a single direction, in the process that the upper handle bar 10 is folded relative to the lower handle bar 20, so that the first end of the support rod 50 can move along the lower handle bar 20 in the direction away from the upper handle bar 10, and the upper handle bar 10 and the lower handle bar 20 can rotate downwards together; and the first locking mechanism is set to be unlocked in two steps, so that the number of the locking mechanisms is reduced, and the structure is simplified.

As shown in fig. 3 to 5, the first locking mechanism 100 includes a sliding sleeve 101, a first locking block 102 and a first flexible member 103, the sliding sleeve 101 is sleeved on the handle lower rod 20, the sliding sleeve 101 is connected to the first end of the support rod 50, a first locking hole 1011 is formed at an end of the sliding sleeve 101 away from the handle upper rod 10, the first locking block 102 is inserted into the first locking hole 1011, the first locking block 102 is used for limiting the movement of the sliding sleeve 101 from a position locked with respect to the handle lower rod 20 to a direction away from the handle upper rod 10, the first end of the first flexible member 103 is connected to the handle upper rod 10, the second end of the first flexible member 103 is connected to the first locking block 102, and the first flexible member 103 is used for driving the first locking block 102 to disengage from the first locking hole 1011 when the handle upper rod 10 is folded with respect to the handle lower rod 20, so as to release the limitation on the movement of the sliding sleeve 101 in the direction away from.

Further, the first locking mechanism 100 further includes a first elastic member 104 for driving the first locking block 102 disengaged from the first locking hole 1011 to be reinserted into the first locking hole 1011.

The end of the sliding sleeve 101 close to the handle upper bar 10 is provided with a second locking hole 1012, the first locking mechanism 100 includes a second locking block 105 and a second flexible member 106, the second locking block 105 is inserted into the second locking hole 1012, the second locking block 105 is used for limiting the movement of the sliding sleeve 101 from a position locked with respect to the handle lower bar 20 to a direction close to the handle upper bar 10, a first end of the second flexible member 106 is connected with the second locking block 105, a second end of the second flexible member 106 is connected with the connecting mechanism 200, and the second flexible member 106 is used for driving the second locking block 105 to disengage from the second locking hole 1012 when the handle lower bar 20 rotates relative to the front foot bar 30 and the rear foot bar 40, so as to release the limitation of the movement of the sliding sleeve 101 in the direction close to the handle upper bar 10.

The first locking mechanism 100 further includes a fixing seat 107, a sliding block 108 and a first connecting rod 109, the fixing seat 107 is disposed inside the handle lower rod 20, the fixing seat 107 is provided with a first locking cavity for accommodating the second locking block 105, the sliding block 108 is slidably disposed relative to the fixing seat 107, one end of the sliding block 108 away from the handle upper rod 10 is connected to the second flexible member 106, the sliding block 108 is provided with a first hole 1081, the shape of the first hole 1081 is configured to drive the second locking block 105 to extend out or retract into the first locking cavity when the sliding block 108 moves relative to the fixing seat 107, the first connecting rod 109 is connected to the second locking block 105, and the sliding block 108 is inserted into the first hole 1081.

The fixing base 107 is further provided with a second lock cavity for accommodating the first lock block 102, the first lock block 102 moves relative to the fixing base 107 under the action of the first flexible member 103 to extend out of or retract into the second lock cavity, the slider 108 is provided with a second hole 1082, the first locking mechanism 100 further comprises a second connecting rod 111, the second connecting rod 111 is connected with the first lock block 102 and inserted into the second hole 1082, and the second hole 1082 is shaped and configured to be capable of driving the first lock block 102 to retract into the second lock cavity under the action of the first flexible member 103 and driving the first lock block 102 to move along the extending direction of the second flexible member 106 when the slider 108 moves relative to the fixing base 107.

The first locking mechanism 100 further includes a second elastic member 112 for driving the second lock block 105 disengaged from the second lock hole 1012 to be reinserted into the second lock hole 1012.

As shown in fig. 6, the connecting mechanism 200 includes a connecting base 201 and a latch 202, the connecting base 201 is mounted on the front foot bar 30, the connecting base 201 is provided with a first mounting groove, the handle lower bar 20 is rotatably mounted in the first mounting groove, the latch 202 is movably disposed on the handle lower bar 20 and connected with the second flexible member 106, and the latch 202 is used for moving relative to the handle lower bar 20 when the handle lower bar 20 rotates relative to the connecting base 201 to bring the second flexible member 106 into motion.

The connecting base 201 is provided with a first inclined surface which contacts the latch 202 and drives the latch 202 to move when the handle lower bar 20 is rotated relative to the connecting base 201.

The connecting mechanism 200 further comprises a first sleeve 203, the first sleeve 203 is sleeved on the outer periphery of the handle lower rod 20, and a first rib is arranged on the outer periphery of the first sleeve 203.

A second mounting groove is further formed in the connecting base 201, and the rear foot bar 40 is rotatably mounted in the second mounting groove.

The connecting mechanism 200 further comprises a second sleeve 204, the second sleeve 204 is sleeved on the periphery of the rear foot bar 40, and the periphery of the second sleeve 204 is provided with a second rib.

By providing the first sleeve 203 and the second sleeve 204, the rotation of the handle lower bar 20 and the rear foot bar 40 relative to the connecting base 201 can be realized even when the handle lower bar and the rear foot bar are non-circular.

The stroller frame further includes a second locking mechanism 300 for locking the handle upper bar 10 and the handle lower bar 20 of the stroller frame 300 and an unlocking mechanism for unlocking the second locking mechanism 300.

The specific structure of the unlocking mechanism can be selected in various ways. For example, in the embodiment shown in fig. 1, the unlocking mechanism is provided outside the second locking mechanism 300, and unlocking of the second locking mechanism 300 can be achieved by pressing the unlocking mechanism laterally. In other embodiments, the unlocking mechanism may be disposed in the middle of the transverse rod of the handlebar upper rod 10, and the unlocking mechanism disposed at this position may be simultaneously connected to the second locking mechanisms 300 on both sides of the frame, so as to realize one-hand unlocking.

The stroller frame further comprises a seat plate 110, a first connecting rod 140 and a second connecting rod 150, the front foot rod 30 is in an inverted T shape, the seat plate 110 is connected with the handle lower rod 20, a first end of the first connecting rod 140 is connected with the seat plate 110, a second end of the first connecting rod 140 is connected with the second connecting rod 150, the middle of the first connecting rod 140 is connected with the front foot rod 30, and the second connecting rod 150 is connected with the rear foot rod 40.

The stroller frame further includes a first rear wheel 160, a second rear wheel 170, the first and second rear wheels 160 and 170 rotatably mounted on the rear foot bar 40, and a brake mechanism for fixing the first and second rear wheels 160 and 170 relative to the rear foot bar 40.

As shown in fig. 9 and 10, the brake mechanism includes a first stopper rod 404, a second stopper rod 504, a first rotary holder 403, a brake pedal, a second rotary holder 503 and a third flexible member 400, the first rotary holder 403 is rotatably provided on the rear foot bar 40, the first rotary holder 403 is used for driving the first stopper rod 404 to move along the axial direction of the first rear wheel 160 when rotating with respect to the first rear wheel 160, to block the rotation of the first rear wheel 160, a brake pedal is mounted on a first rotary base 403, a second rotary base 503 is rotatably provided on the rear foot bar 40, the second rotary base 503 is used to drive a second blocking bar 504 to move along the axial direction of the second rear wheel 170 when rotating relative to the second rear wheel 170, so as to prevent the second rear wheel 170 from rotating, the first end of the third flexible member 400 is connected to the first rotating base 403, the two ends of the third flexible member 400 are connected to the second rotating base 503, and the third flexible member 400 is used for driving the second rotating base 503 to rotate after the brake pedal is stepped on and the first rotating base 403 is driven to rotate.

The first rotating base 403 is provided with a second inclined surface, and the second inclined surface is used for contacting the first stop lever 404 and driving the first stop lever 404 to move; and/or the second rotating base 503 is provided with a third inclined surface, and the third inclined surface is used for contacting the second blocking rod 504 and driving the second blocking rod 504 to move.

The first rotating base 403 is provided with a first stop groove, and the first stop groove is arranged at the tail end of the second inclined surface so as to enter the first stop groove after the first stop lever 404 is driven to move to a position for blocking the first rear wheel 160 from rotating; and/or, the second rotating base 503 is provided with a second stop groove, and the second stop groove is arranged at the end of the third inclined surface, so as to enter the second stop groove after driving the second blocking rod 504 to move to a position for blocking the second rear wheel 170 from rotating.

In the above embodiments, the first flexible member 103, the second flexible member 106 and the third flexible member 400 may be bent, but are not substantially extendable, and a steel cable or the like may be used.

In each of the above embodiments, the bar members may be solid bars or hollow bars (i.e., tubes), such as the handle upper bar 10, the handle lower bar 20, the front foot bar 30, the rear foot bar 40, the support bar 50, the ceiling bar 60, the grab bar 70, the back bar 80, the first link 140, and the second link 150, etc., to reduce the overall weight of the frame.

The structure and the working process of an embodiment of the stroller frame of the present invention are described below with reference to the accompanying drawings 1 to 15:

as shown in fig. 1, the stroller frame includes a handle upper bar 10, a handle lower bar 20, a front leg bar 30, a rear leg bar 40, a support bar 50, a ceiling bar 60, a grab bar 70, a back bar 80, and a seat plate 110.

The handle upper rod 10 is connected with the handle lower rod 20, a second locking mechanism 300 is arranged between the handle upper rod 10 and the handle lower rod 20, and an unlocking mechanism is further arranged on the frame and used for unlocking the second locking mechanism 300.

The ceiling lever 60 is pivotally connected to an end of the handle upper lever 10 adjacent to the handle lower lever 20. The bottom of the backrest rod 80 is pivoted in a backrest adjusting mechanism 130, and the backrest adjusting mechanism 130 is fixed on the handle lower rod 20.

The top of the support piece 120 is pivoted on the grab bar 70 and the bottom of the support piece 120 is pivoted in the seat plate 110. The seat plate 110 is pivotally connected to the backrest adjustment mechanism 130, the seat adjustment mechanism 90 is pivotally connected to the seat plate 110, and the bottom of the grab bar 70 is pivotally connected to the handle lower bar 20.

The front foot bar 30, the rear foot bar 40 and the handlebar lower bar 20 are connected by a connecting mechanism 200. The front foot bar 30 is in an inverted T shape, and the lateral part of the front foot bar 30 is a footboard 31, so that the baby can put both feet on the footboard 31 when sitting. The first front wheel 180 and the second front wheel 190 are respectively mounted to both ends of the footboard 31. The rear leg bar 40 is in an inverted U shape, and a first rear wheel 160 and a second rear wheel 170 are respectively installed at both ends of the rear leg bar 40.

The frame further includes a support member 210 provided on the handlebar upper bar 10 for supporting the rear side of the ceiling.

As shown in fig. 2, the first link 140 is bent, the top of the first link 140 is pivotally connected to the seat plate 110, the middle of the first link 140 is pivotally connected to the front foot bar 30, the bottom of the first link 140 is pivotally connected to the top of the second link 150, the second link 150 is a straight rod, and the bottom of the second link 150 is pivotally connected to the rear foot bar 40. The top of the support rod 50 is pivotally connected to the handle lower rod 20, and the bottom of the support rod 50 is pivotally connected to the rear foot rod 40.

As shown in fig. 3, the first locking mechanism includes a sliding sleeve 101, a first locking block 102, a first flexible member 103, a first elastic member 104, a second locking block 105, a second flexible member 106, a fixed seat 107, a sliding block 108, a first connecting rod 109, a second connecting rod 111, a second elastic member 112, and a third connecting rod 113.

The sliding sleeve 101 is installed on the outer circumference of the handle lower rod 20, and the sliding sleeve 101 is provided with a first locking hole 1011, a second locking hole 1012 and a connecting hole 1013. The first lock hole 1011 is disposed at an end of the sliding sleeve 101 away from the handle upper bar 10, and the second lock hole 1012 is disposed at an end of the sliding sleeve 101 close to the handle upper bar 10. The first lock hole 1011 and the second lock hole 1012 are both holes with one side opening in the circumferential direction, the opening of the first lock hole 1011 faces away from the handle upper bar 10, and the opening of the second lock hole 1012 faces towards the handle upper bar 10. The connecting holes 1013 are used to connect the sliding sleeve 101 and the supporting rod 50.

Fixing base 107 fixed mounting is in the inside of hand (hold) lower beam 20, the top surface and the bottom surface of fixing base 107 are equipped with the recess respectively, slider 108 is the U-shaped, vertical part includes first gleitbretter and second gleitbretter, when slider 108 was inserted on fixing base 107, first gleitbretter and second gleitbretter blocked respectively in the recess of fixing base 107 top surface and bottom surface, the three side of recess (being front side, rear side and right side) all is equipped with the portion of blockking, have limiting displacement to first gleitbretter and second gleitbretter.

Be equipped with first lock chamber and second lock chamber on the fixing base 107, the top surface and the bottom surface of fixing base 107 are equipped with fourth hole 1071, fifth hole 1072 and sixth hole 1073 respectively, and the fourth hole 1071 of top surface and the fourth hole 1071 of bottom surface just in time are relative, and with first lock chamber intercommunication, and the fifth hole 1072 of top surface and the fifth hole 1072 of bottom surface just in time are relative, and with second lock chamber intercommunication.

A first elastic element 104 is arranged in the second lock cavity, the first elastic element 104 is connected with the first lock block 102, a second elastic element 112 is arranged in the first lock cavity, and the second elastic element 112 is connected with the second lock block 105.

The first slide and the second slide of the slide 108 are respectively provided with a first hole 1081, a second hole 1082 and a third hole 1083, the first hole 1081 is in the shape of a long hole obliquely arranged relative to the extending direction of the second flexible member 106, the second hole 1082 is in the shape of a right triangle, and two right-angled sides are respectively parallel to and perpendicular to the extending direction of the second flexible member 106. The third hole 1083 is also in the shape of an elongated hole, and the length direction thereof is parallel to the extending direction of the second flexible member 106.

As shown in fig. 4, the first connecting rod 109 passes through the first hole 1081 on the first sliding plate of the slider 108, the fourth hole 1071 on the fixed seat 107, the first lock cavity on the fixed seat 107 and the first hole 1081 on the second sliding plate of the slider 108, and the second connecting rod 111 passes through the second hole 1082 on the first sliding plate of the slider 108, the fifth hole 1072 on the fixed seat 107, the second lock cavity on the fixed seat 107 and the second hole 1082 on the second sliding plate of the slider 108. The third connecting rod 113 passes through a third hole 1083 on the first slide of the slider 108, a sixth hole 1073 on the fixed seat 107, and a third hole 1083 on the second slide of the slider 108.

As shown in fig. 5, the second locking mechanism 300 includes a rotary plate connected to the handle upper rod 10, and when the handle upper rod 10 rotates relative to the handle lower rod 20, the rotary plate also rotates together, and the first flexible member 103 is fixedly connected to the rotary plate, so that when the rotary plate rotates, the first flexible member 103 is driven to move toward a direction close to the handle upper rod 10, thereby driving the first lock block 102 to retract, and unlocking the first lock block 102. After the first locking block 102 is unlocked, even if the second locking block 105 is still extended to be in a locking state, the sliding sleeve 101 is not influenced to move relative to the lower handle bar 20 in a direction away from the upper handle bar 10.

As shown in FIG. 6, the coupling mechanism 200 couples the handlebar down post 20, the front foot post 30 and the rear foot post 40.

As shown in fig. 7, the connection mechanism 200 includes a connection base 201, a bayonet 202, a first sleeve 203, and a second sleeve 204. The connecting seat 201, the first sleeve 203 and the second sleeve 204 are all of split structures.

The connecting seat 201 includes an upper seat body and a lower seat body, the upper seat body is fixedly installed on the front foot rod 30, and the upper seat body is buckled above the lower seat body. The upper seat body and the lower seat body are connected and fixed through a connecting pin 207 after being buckled.

The inside first mounting groove and the second mounting groove of being equipped with of connecting seat 201, first mounting groove and second mounting groove are cylindrical shape. The first bushing 203 includes an upper pipe body and a lower pipe body, the upper pipe body is installed in the upper base body, the lower pipe body is installed in the lower base body, the upper pipe body is buckled above the lower pipe body, and the upper pipe body and the lower pipe body are sleeved on the periphery of the handle lower rod 20 and are fixedly connected with the handle lower rod 20 through a first rivet 205. The second sleeve 204 comprises a front tube body and a rear tube body, the front tube body is buckled in front of the rear tube body, the front tube body and the rear tube body are sleeved on the periphery of the rear foot rod 40 and are fixedly connected with the rear foot rod 40 through a second rivet 206, and the front tube body and the rear tube body are arranged in a second mounting groove of the connecting seat 201.

The diameter of the middle section of the first sleeve 203 is smaller than the diameter of the two ends, two first limiting holes are formed in the smaller diameter position of the middle section, two second limiting holes corresponding to the first limiting holes are formed in the position, wrapped by the first sleeve 203, of the handle lower rod 20, and the two clamping pins 202 penetrate through the first sleeve 203 and the handle lower rod 20 through the corresponding first limiting holes and the corresponding second limiting holes respectively. The first and second limiting holes are elongated holes, and the length direction thereof is parallel to the transverse direction (left-right direction) of the handle lower rod 20 and parallel to the extending direction of the second flexible member 106. The end of the second flexible element 106 is provided with a collar into which the bayonet 202 is inserted.

The inner wall of the first mounting groove of the connecting seat 201 is provided with a first inclined surface, the first inclined surface is a spiral protrusion, an included angle is formed between a circle formed by the protrusion and the radial section of the first mounting groove, when the handle lower rod 20 drives the first sleeve 203 to rotate relative to the connecting seat 201, the bayonet pin 202 rotates along with the first sleeve 203, in the rotating process, under the action of the first inclined surface, the bayonet pin 202 moves along the transverse direction, so that the left and right second flexible parts 106 move relatively, as shown in fig. 8, the second locking block 105 is driven to retract, and the second locking block 105 is unlocked. At the same time, the slide block 108 can keep the first lock block 102 still in the unlocked state, so that the sliding sleeve 101 can move up or down along the handle lower rod 20.

The top of connecting seat 201 is equipped with handle 208, and handle 208 passes through the third rivet 209 to be installed on connecting seat 201, and the whole frame is lifted to this handle 208 after the frame is closed, conveniently removes the frame.

As shown in fig. 9, the brake mechanism includes a brake pedal, a first blocking lever 404, a second blocking lever 504, a first rotating base 403, a second rotating base 503 and a third flexible member 400.

Be equipped with the connecting rod between the bottom both ends of back foot pole 40, brake mechanism includes first mount pad 401 and second mount pad 501, and first mount pad 401 is connected with one side bottom of back foot pole 40, is connected with the connecting rod simultaneously, and second mount pad 501 is connected with the opposite side bottom of back foot pole 40, is connected with the connecting rod simultaneously. The third flexible member 400 is inserted into the first mounting seat 401, the connecting rod and the second mounting seat 501.

The first mounting seat 401 is mounted on the first support seat 402, and the second mounting seat 501 is mounted on the second support seat 502. A third elastic member 406 is arranged between the first mounting seat 401 and the first supporting seat 402, and a fourth elastic member 506 is arranged between the second mounting seat 501 and the second supporting seat 502 for avoiding the overall vibration of the frame.

The outer side of the first rotary base 403 is rotatably installed at the inner side of the first support base 402, the first flap 408 is installed at the inner side of the first rotary base 403 by a fourth rivet 409, and the first rear wheel 160 is installed at the outer side of the first support base 402. The outer side of the second rotary base 503 is rotatably installed at the inner side of the second support base 502, the second flap 508 is installed at the inner side of the second rotary base 503 by a fifth rivet 509, and the second rear wheel 170 is installed at the outer side of the second support base 502.

One end of the third flexible member 400 is connected to the first rotating base 403, and the other end is connected to the second rotating base 503.

The first rotary base 403 is provided with a second inclined surface, and the second inclined surface is used for contacting the first blocking rod 404 during the rotation of the first rotary base 403, and then driving the first blocking rod 404 to axially extend out, and the extended first blocking rod is inserted into the spoke gap of the first rear wheel 160 to block the first rear wheel 160 from continuing to rotate. The second rotating base 503 is provided with a third inclined surface, and the third inclined surface is used for contacting the second blocking rod 504 in the rotating process of the second rotating base 503, then driving the second blocking rod 504 to axially extend out, and inserting into a spoke gap of the second rear wheel 170 after extending out, so as to block the second rear wheel 170 from continuing to rotate, thereby achieving the braking purpose.

A fifth elastic member 407 is further disposed between the first rotating base 403 and the first supporting base 402, and the fifth elastic member 407 is used for assisting the first blocking lever 404 to return, so as to release the blocking effect on the first rear wheel 160. A sixth elastic element 507 is further disposed between the second rotating base 503 and the second supporting base 502, and the sixth elastic element 507 is used for assisting the second blocking rod 504 to reset, so as to release the blocking effect on the second rear wheel 170.

The first rotating base 403 is further provided with a first stop groove, and the first stop groove is arranged at the tail end of the second inclined plane, so that when the second inclined plane drives the first stop lever 404 to move to a position where the first rear wheel 160 can be blocked, the first stop lever 404 can enter the first stop groove, thereby ensuring that the first stop lever 404 cannot automatically reset under a braking state and the first rear wheel 160 can continuously rotate. The second rotating base 503 is provided with a second stopping groove, and the second stopping groove is arranged at the end of the third inclined plane, so that when the third inclined plane drives the second stopping rod 504 to move to a position where the second rear wheel 170 can be stopped, the second stopping rod 504 can enter the second stopping groove, and the second stopping rod 504 is prevented from being reset accidentally. When the braking state needs to be released, the first blocking rod 404 can be separated from the first stop groove and the second blocking rod 504 can be separated from the second stop groove by pushing the vehicle slightly.

The first rear wheel 160 is installed outside the first support base 402 through a first pin, and the first blocking piece 405 is inserted into the insertion hole of the first support base 402 and is inserted into the groove of the first pin, so that the first rear wheel 160 and the first support base 402 are fixed relatively; when the first rear wheel 160 is dismounted, the first blocking piece 405 is pulled off, and the first rear wheel 160 can be dismounted quickly. The second rear wheel 170 is mounted on the outer side of the second support seat 502 through a second pin, and the second stopper 505 is inserted into the insertion hole of the second support seat 502 and is inserted into the groove of the second pin, so as to realize the relative fixation of the second rear wheel 170 and the second support seat 502; when the second rear wheel 170 is dismounted, the second baffle 505 is pulled out, and the second rear wheel 170 can be dismounted quickly.

As shown in fig. 10, the brake pedal is mounted on the first rotary base 403.

The frame folding process:

as shown in fig. 11, the ceiling bar 60 is first folded upward so that it is substantially parallel to the handle upper bar 10;

next, as shown in fig. 12, the unlocking mechanism is operated to unlock the second locking mechanism, and then the handle upper bar 10 is folded down, so that the ceiling bar 60 and the handle upper bar 10 are folded back to below the handle lower bar 20 and are substantially parallel to the handle lower bar 20;

during the rotation of the upper handle rod 10 relative to the lower handle rod 20, the turntable 301 drives the first flexible member 103 to move upward, and further drives the first locking block 102 to retract, the first locking mechanism is partially unlocked, and at this time, as shown in fig. 13, the sliding sleeve 101 can move downward relative to the lower handle rod 20, so that the ceiling rod 60, the upper handle rod 10 and the lower handle rod 20 can rotate forward together until the lower handle rod 20 and the rear foot rod 40 are substantially in a straight line;

when the lower handle bar 20 is folded upwards, i.e. rotated relative to the front foot bar 30 and the rear foot bar 40, the first inclined surface in the connecting seat 201 drives the bayonet 202 to move transversely, so as to drive the two second flexible members 106 to move relatively, and further to retract the second locking block 105, so that the first locking mechanism is completely unlocked, at this time, as shown in fig. 14, the sliding sleeve 101 can move upwards relative to the lower handle bar 20 until it crosses the fixing seat 107 and continues to move upwards, so that the ceiling bar 60, the upper handle bar 10 and the lower handle bar 20 can be folded forwards continuously until they are folded to overlap with the front foot bar 30, as shown in fig. 15, at this time, the frame is in a completely folded state, and the volume is minimized.

And (3) braking process:

when the brake pedal is pressed, the first rotary base 403 rotates, and the second inclined surface drives the first stopper rod 404 to axially extend and insert into the spoke gaps of the first rear wheel 160 during the rotation process, so as to prevent the first rear wheel 160 from continuing to rotate.

When the first rotating base 403 rotates, the second rotating base can be driven to rotate by the third flexible part 400, and the third inclined surface drives the second blocking rod 504 to axially extend out and insert into the spoke gap of the second rear wheel 170 in the rotating process, so that the second rear wheel 170 is prevented from continuously rotating, and the braking purpose is realized.

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 (19)

1. A stroller frame, comprising:

a handle upper rod (10);

a handle lower rod (20) connected to the handle upper rod (10);

a front foot bar (30);

a rear foot bar (40);

a support bar (50) having a first end connected to the handle lower bar (20) and a second end connected to the rear leg bar (40);

a first locking mechanism (100) for locking the lower handle bar (20) and the support bar (50) and partially unlocking the upper handle bar (10) and the lower handle bar (20) after being folded relative to each other, so that the first end of the support bar (50) can slide relative to the lower handle bar (20) in a direction away from the upper handle bar (10); and

the connecting mechanism (200) is used for connecting the front foot rod (30), the rear foot rod (40) and the handle lower rod (20), and the handle lower rod (20) drives the first locking mechanism (100) to be completely unlocked after rotating relative to the front foot rod (30) and the rear foot rod (40), so that the supporting rod (50) can slide relative to the handle lower rod (20) along the direction close to the handle upper rod (10).

2. The stroller frame according to claim 1, characterized in that the first locking mechanism (100) comprises:

the sliding sleeve (101) is sleeved on the handle lower rod (20) and connected with the first end of the supporting rod (50), and a first lock hole (1011) is formed in one end, far away from the handle upper rod (10), of the sliding sleeve;

the first locking block (102) is inserted into the first locking hole (1011) and used for limiting the movement of the sliding sleeve (101) from a position locked relative to the handle lower rod (20) to a direction far away from the handle upper rod (10); and

the first end of the first flexible piece (103) is connected with the handle upper rod (10), the second end of the first flexible piece is connected with the first locking block (102), and the first flexible piece is used for driving the first locking block (102) to be separated from the first locking hole (1011) when the handle upper rod (10) is folded relative to the handle lower rod (20), so that the limitation of the movement of the sliding sleeve (101) in the direction far away from the handle upper rod (10) is removed.

3. The stroller frame according to claim 2, wherein the first locking mechanism (100) further comprises a first elastic member (104) for driving the first locking piece (102) disengaged from the first locking hole (1011) to be reinserted into the first locking hole (1011).

4. The stroller frame according to claim 2, wherein the sliding sleeve (101) is provided with a second locking hole (1012) at an end thereof adjacent to the handlebar upper rod (10), and the first locking mechanism (100) further comprises:

the second locking block (105) is inserted in the second locking hole (1012) and used for limiting the movement of the sliding sleeve (101) from the position locked relative to the handle lower rod (20) to the direction close to the handle upper rod (10); and

and a second flexible member (106), a first end of which is connected with the second locking block (105), and a second end of which is connected with the connecting mechanism (200), and is used for driving the second locking block (105) to be separated from the second locking hole (1012) when the handle lower rod (20) rotates relative to the front foot rod (30) and the rear foot rod (40), so as to release the limitation of the movement of the sliding sleeve (101) along the direction close to the handle upper rod (10).

5. The stroller frame according to claim 4, characterized in that the first locking mechanism (100) further comprises:

the fixing seat (107) is arranged inside the handle lower rod (20) and is provided with a first lock cavity for accommodating the second lock block (105);

a sliding block (108) which is arranged in a sliding way relative to the fixed seat (107), one end of the sliding block, which is far away from the handle upper rod (10), is connected with the second flexible part (106), and a first hole (1081) is formed, and the shape of the first hole (1081) is configured to drive the second lock block (105) to extend out of or retract into the first lock cavity when the sliding block (108) moves relative to the fixed seat (107); and

and the first connecting rod (109) is connected with the second locking block (105) and is inserted into the first hole (1081).

6. Baby carriage frame according to claim 5, characterised in that the holder (107) is further provided with a second lock cavity for receiving the first lock piece (102), the first locking block (102) moves relative to the fixed seat (107) under the action of the first flexible piece (103) to extend or retract the second locking cavity, a second hole (1082) is arranged on the sliding block (108), the first locking mechanism (100) further comprises a second connecting rod (111), the second connecting rod (111) is connected with the first locking block (102) and inserted in the second hole (1082), the shape of the second hole (1082) is configured to enable the first lock block (102) to be retracted into the second lock cavity under the action of the first flexible part (103) and enable the first lock block (102) to be moved along the extending direction of the second flexible part (106) when the sliding block (108) moves relative to the fixed seat (107).

7. The stroller frame according to claim 4, wherein the first locking mechanism (100) further comprises a second elastic member (112) for driving the second lock block (105) disengaged from the second lock hole (1012) to be reinserted into the second lock hole (1012).

8. The stroller frame according to claim 4, characterized in that the connection mechanism (200) comprises:

the connecting seat (201) is arranged on the front foot rod (30) and is provided with a first mounting groove, and the handle lower rod (20) is rotatably arranged in the first mounting groove; and

the bayonet lock (202) is movably arranged on the handle lower rod (20) and is connected with the second flexible piece (106) and used for moving relative to the handle lower rod (20) when the handle lower rod (20) rotates relative to the connecting seat (201) so as to drive the second flexible piece (106) to move.

9. The stroller frame according to claim 8, characterized in that the connecting seat (201) is provided with a first inclined surface which contacts the latch (202) and drives the latch (202) to move when the handlebar stem (20) is rotated relative to the connecting seat (201).

10. The stroller frame according to claim 8, characterized in that the connecting mechanism (200) further comprises a first sleeve (203), the first sleeve (203) is sleeved on the outer periphery of the handlebar lower rod (20), and the outer periphery of the first sleeve (203) is provided with a first rib.

11. The stroller frame according to claim 8, wherein a second mounting groove is further formed in the coupling seat (201), and the rear foot bar (40) is rotatably mounted in the second mounting groove.

12. The stroller frame according to claim 11, characterized in that the connection mechanism (200) further comprises a second sleeve (204), the second sleeve (204) is sleeved on the outer periphery of the rear foot bar (40), and the outer periphery of the second sleeve (204) is provided with a second rib.

13. The stroller frame of claim 1, further comprising:

a second locking mechanism (300) for locking the handlebar upper bar (10) and the handlebar lower bar (20); and

an unlocking mechanism for unlocking the second locking mechanism (300).

14. The stroller frame according to claim 1, further comprising a seat plate (110), a first connecting rod (140) and a second connecting rod (150), wherein the front foot bar (30) has an inverted T-shape, the seat plate (110) is connected to the handlebar lower bar (20), a first end of the first connecting rod (140) is connected to the seat plate (110), a second end of the first connecting rod (140) is connected to the second connecting rod (150), a middle portion of the first connecting rod (140) is connected to the front foot bar (30), and the second connecting rod (150) is connected to the rear foot bar (40).

15. The stroller frame of claim 1, further comprising a first rear wheel (160), a second rear wheel (170), the first rear wheel (160) and the second rear wheel (170) being rotatably mounted on the rear foot bar (40), and a braking mechanism for securing the first rear wheel (160) and the second rear wheel (170) relative to the rear foot bar (40).

16. The stroller frame of claim 15, wherein the brake mechanism comprises:

a first bar (404);

a second bar (504);

a first rotary seat (403) rotatably arranged on the rear foot bar (40) and used for driving the first stop lever (404) to move along the axial direction of the first rear wheel (160) when rotating relative to the first rear wheel (160) so as to block the first rear wheel (160) from rotating;

a brake pedal mounted on the first rotary seat (403);

a second rotary seat (503) rotatably arranged on the rear foot bar (40) and used for driving the second stop lever (504) to move along the axial direction of the second rear wheel (170) when rotating relative to the second rear wheel (170) so as to block the second rear wheel (170) from rotating; and

and a first end of the third flexible part (400) is connected with the first rotating seat (403), and a second end of the third flexible part is connected with the second rotating seat (503) and is used for driving the second rotating seat (503) to rotate after the brake pedal is stepped on and drives the first rotating seat (403) to rotate.

17. The stroller frame according to claim 16, characterized in that the first rotary seat (403) is provided with a second inclined surface for contacting the first bar (404) and driving the first bar (404) to move; and/or the second rotating seat (503) is provided with a third inclined surface, and the third inclined surface is used for contacting the second stop lever (504) and driving the second stop lever (504) to move.

18. The stroller frame according to claim 17, wherein the first rotary seat (403) is provided with a first stop groove provided at an end of the second inclined surface to enter the first stop groove after driving the first bar (404) to move to a position blocking the rotation of the first rear wheel (160); and/or the second rotating seat (503) is provided with a second stop groove, and the second stop groove is arranged at the tail end of the third inclined surface so as to enter the second stop groove after the second stop rod (504) is driven to move to a position for blocking the second rear wheel (170) from rotating.

19. A stroller comprising a stroller frame according to any one of claims 1 to 18.

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