CN217892974U

CN217892974U - Push rod assembly and child stroller

Info

Publication number: CN217892974U
Application number: CN202221409617.5U
Authority: CN
Inventors: 王俊马
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-11-25
Anticipated expiration: 2032-06-07

Abstract

The utility model discloses a push rod subassembly and children's shallow, push rod subassembly is including rotating first pole and the second pole of connecting, the locking mechanical system with the relative position locking of first pole and second pole, locking mechanical system is including sliding the locking piece of establishing between first pole and second pole, locking piece and first pole cooperation, and can cooperate or throw off the cooperation with the second pole, push rod subassembly has expansion and fold condition, push rod subassembly is when expansion and fold condition, locking mechanical system all is in lock state, push rod subassembly has first cooperation length between lock piece and second pole under the expansion state, lock piece and second pole have second cooperation length under fold condition, first cooperation length is greater than second cooperation length, push rod subassembly makes the second pole when the direction of keeping away from first pole rotates under fold condition, the locking piece can cooperate and order about the locking piece slip messenger locking mechanical system unblock with the second pole. When the push rod assembly is unfolded from a folded state, the locking mechanism is convenient to unlock, and an unlocking knob does not need to be operated.

Description

Push rod assembly and baby stroller

Technical Field

The utility model relates to a children article technical field, concretely relates to push rod assembly and children's shallow.

Background

The baby stroller comprises a stroller frame, the stroller frame comprises a push rod assembly, the push rod assembly comprises a push rod and a push handle connected with the push rod in a rotating mode, the stroller frame can be folded for the baby stroller to be convenient to carry and store, and the push rod assembly can also be folded. When the push rod component is folded, the push handle rotates to be close to the push rod. When the push rod assembly is in the unfolding state and the folding state, the relative positions of the push rod and the push handle are locked through a locking mechanism. In the prior art, no matter the push rod assembly is folded from the unfolding state or unfolded from the folding state, the push handle can rotate relative to the push rod after the locking mechanism is unlocked by operating the unlocking knob, so that the unfolding operation of the baby stroller is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at not enough among the prior art, provide a push rod assembly, this push rod assembly when launching under fold condition, as long as make the second pole can make the locking mechanical system unblock when rotating to the direction of keeping away from the first pole, need not to operate the unblock knob for the expansion convenient operation of children's shallow.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

a push rod assembly, including first pole and second pole, an end of first pole with an end of second pole is connected through the pivot rotation, push rod assembly still includes being used for with the locking mechanism of the relative position locking of first pole with the second pole, locking mechanism includes can set up with sliding the locking piece between an end of first pole and an end of second pole, works as when locking mechanism is in the locking state, the locking piece respectively with an end of first pole with an end of second pole cooperatees, works as when locking mechanism is in the unlocking state, the locking piece with an end of first pole cooperatees, the locking piece with cooperation between an end of second pole is disengaged, push rod assembly has expansion state and fold condition, works as when push rod assembly is in expansion state and fold condition, locking mechanism all is in the locking state, works as when push rod assembly is in expansion state, the locking piece with an end of second pole have first cooperation length between, works as when push rod assembly is in the fold condition, the push rod assembly with an end of second pole has second cooperation length between the second pole, the locking piece with second pole cooperation length is greater than the second pole cooperation length, the locking piece makes the locking piece cooperate length to make the locking piece rotate to make the second pole cooperation length to make the locking piece be greater than the locking piece cooperation length.

Preferably, the push rod subassembly still includes and works as order about when the push rod subassembly is in the expansion state the unblock piece of locking mechanical system unblock, the unblock piece can wind the pivot is rotated and can be followed the axis direction of pivot slides and sets up an end of second pole, the unblock piece with be provided with the convex part on one of two parts of locking piece, be provided with on another part with convex part matched with recess, the convex part with the recess is all followed unblock piece pivoted circumferencial direction extends, works as when the push rod subassembly is in the expansion state, the convex part is located in the recess, just the top of convex part with the tank bottom of recess offsets and establishes, works as when the push rod subassembly is in fold condition, the convex part is followed deviate from in the recess, just the top of convex part with the groove top plane of recess offsets and establishes.

Furthermore, a side of the convex portion is provided with a first inclined plane, the side wall of the groove is provided with a second inclined plane matched with the first inclined plane, the unlocking piece winds the rotating shaft is opposite to the locking piece, the first inclined plane can be enabled to abut against the second inclined plane to be matched, and the convex portion enters the groove or is disengaged from the groove.

Further, the convex parts are respectively arranged on two opposite sides of the rotation center of the unlocking piece, and/or the distances between the convex parts on two sides and the rotation center of the unlocking piece are different.

Further, when the unlocking part rotates relative to the second rod in the unfolded state of the push rod assembly, the unlocking part can be matched with one end part of the second rod.

Furthermore, the unlocking piece is provided with a third inclined plane, one end of the second rod is provided with a fourth inclined plane matched with the third inclined plane, and the third inclined plane can be abutted against the fourth inclined plane to be matched with the fourth inclined plane.

Preferably, the locking member is provided with locking teeth, one end of the first rod is provided with a first tooth groove matched with the locking teeth, one end of the second rod is provided with a second tooth groove matched with the locking teeth, when the locking mechanism is in a locking state, the locking teeth are respectively meshed with the first tooth groove and the second tooth groove, and when the locking mechanism is in an unlocking state, the locking teeth are meshed with the first tooth groove and are disengaged from the second tooth groove.

Further, one side of locking tooth is provided with the fifth inclined plane, push rod assembly makes under fold condition the second pole is to keeping away from when the direction of first pole rotates, the lateral wall of second tooth's socket can with the cooperation is established in the counterbalance of fifth inclined plane.

Preferably, the push rod assembly further includes an elastic member for urging the locking member to slide in a direction in which the locking member is engaged with the one end portion of the second rod, one end portion of the elastic member being disposed on the one end portion of the first rod, and the other end portion of the elastic member being disposed on the locking member.

The utility model also provides a children's shallow, children's shallow has as above-mentioned arbitrary push rod assembly.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: the utility model discloses a push rod subassembly is under fold condition, because the cooperation length between a tip of locking piece and second pole is shorter relatively, as long as make the second pole to the direction rotation of keeping away from first pole, can order about the locking piece through the cooperation of second pole and locking piece to throw off the complex direction with the second pole and slide to make the locking mechanical system unblock. Like this, when push rod assembly expandes, need not to operate unblock knob, push rod assembly expandes the in-process can make locking mechanical system unblock for push rod assembly's expansion convenient operation makes things convenient for children's shallow's use.

Drawings

Fig. 1 is a perspective view of the push rod assembly of the present embodiment in a deployed state;

FIG. 2 is a schematic side view of the push rod assembly of the present embodiment in a deployed state;

FIG. 3 isbase:Sub>A schematic cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a perspective view of the push rod assembly of the present embodiment in a folded state;

FIG. 5 is a side view of the push rod assembly of the present embodiment in a collapsed position;

FIG. 6 is a schematic cross-sectional view taken along line B-B of FIG. 5;

FIG. 7 is an exploded view of the locking member of the push rod assembly of the present embodiment on the first rod;

fig. 8 is a separate body view showing a partial structure of a second lever of the push rod assembly of the present embodiment;

FIG. 9 is a perspective view of the locking member of the push rod assembly of the present embodiment;

fig. 10 is one of the perspective views of the unlocking member of the push rod assembly of the present embodiment;

fig. 11 is a second perspective view of the unlocking member of the plunger assembly of the present embodiment;

fig. 12 is a perspective view of the stroller of this embodiment in a deployed state;

fig. 13 is a perspective view of the stroller of this embodiment in a collapsed position.

Wherein: 1. a first lever; 11. a first tooth slot; 2. a second lever; 21. a second tooth slot; 22. a fourth slope; 23. a limiting part; 3. a rotating shaft; 4. a locking member; 41. a locking tooth; 411. fifth ramp 42, groove; 421. the bottom of the groove; 422. a groove top plane of the groove; 423. a second inclined surface; 5. an elastic member; 6. unlocking the lock; 61. a convex portion; 611. the top of the convex part; 612. a first inclined plane; 62. a third inclined plane; 7. and unlocking the knob.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, 2, 4 and 5, the push rod assembly of the present invention includes a first rod 1 and a second rod 2, and one end of the first rod 1 and one end of the second rod 2 are rotatably connected by a rotating shaft 3.

The second rod 2 can rotate relative to the first rod 1 around the rotating shaft 3 to approach the first rod 1 or leave the first rod 1. The push rod assembly has an extended state and a collapsed state. When the push rod assembly is in the unfolded state, the second lever 2 is away from the first lever 1, as shown in fig. 1 to 3. When the push rod assembly is in a folded state, the second rod 2 is close to the first rod 1, as shown in fig. 4 to 6.

The push rod assembly further comprises a locking mechanism for locking the relative positions of the first and

second rods

1, 2, the locking mechanism having a locked and unlocked state. When the locking mechanism is in the locked state, the second lever 2 cannot rotate relative to the first lever 1. When the locking mechanism is in the unlocked state, the second lever 2 can be rotated relative to the first lever 1.

The locking mechanism comprises a locking piece 4, wherein the locking piece 4 is sleeved on the rotating shaft 3 and is arranged between one end part of the first rod 1 and one end part of the second rod 2 in a sliding manner along the axial direction of the rotating shaft 3. When the locking mechanism is in the locked state, the locking member 4 engages with one end portion of the first lever 1 and one end portion of the second lever 2, respectively. When the locking mechanism is in the unlocked state, the locking member 4 engages with one end of the first lever 1, and the engagement between the locking member 4 and one end of the second lever 2 is released.

In a specific embodiment, as shown in fig. 7 to 9, the locking member 4 is provided with a locking tooth 41, the first rod 1 is provided with a first spline 11 engaged with the locking tooth 41, and the second rod 2 is provided with a second spline 21 engaged with the locking tooth 41. When the locking mechanism is in the locked state, the locking teeth 41 on the locking element 4 engage with the first and second

toothed grooves

11, 21, respectively. When the locking mechanism is in the unlocked state, the locking teeth 41 on the locking element 4 engage with the first splines 11 and disengage from the second splines 21.

The stroller further includes an elastic member 5, and the elastic force of the elastic member 5 is used to drive the locking member 4 to slide in the direction of engaging the locking tooth 41 with the second tooth groove 21, i.e. the elastic force of the elastic member 5 resets the locking mechanism from the unlocked state to the locked state. One end of the elastic member 5 is provided on the first lever 1, and the other end of the elastic member 5 is provided on the locking member 4, as shown in fig. 7.

The locking mechanism is in a locked state when the push rod assembly is in both the deployed and folded states. When the push rod assembly is in the deployed state, the locking element 4 has a first mating length with an end of the second rod 2, as shown in fig. 3. When the push rod assembly is in the folded state, the locking member 4 has a second engagement length with an end of the second lever 2, as shown in fig. 6. The first matching length is larger than the second matching length, so that the locking mechanism of the push rod assembly is not easy to unlock in the unfolding state, and the safety performance can be improved; when the push rod assembly is unfolded from the folded state, the unlocking operation of the locking mechanism is facilitated, so that the unfolding operation of the push rod assembly is facilitated.

The push rod assembly further comprises an unlocking piece 6, the unlocking piece 6 is sleeved on the rotating shaft 3 and can rotate around the rotating shaft 3 to be arranged at one end of the second rod 2, and the unlocking piece 6 can also slide along the axis direction of the rotating shaft 3. Along the axial extension direction of the rotating shaft 3, the unlocking piece 6 is arranged between the locking piece 4 and one end part of the second rod 2, one of the unlocking piece 6 and the locking piece 4 is provided with a convex part 61, the other part is provided with a groove 42 matched with the convex part 61, the convex part 61 and the groove 42 both extend along the circumferential direction of the rotation of the unlocking piece 6, and the height of the convex part 61 and the depth of the groove 42 both extend along the axial direction of the rotating shaft 3, as shown in fig. 9 and 10.

When the push rod assembly is in the unfolded state, the protrusion 61 is located in the groove 42, and the locking member 4 makes the top 611 of the protrusion 61 abut against the groove bottom 421 of the groove 42 under the elastic force of the elastic member 5, as shown in fig. 3. Thus, since the projection 61 and the groove 42 are partially overlapped in the axial direction of the rotary shaft 3, the locking member 4 is brought closer to the one end portion of the second lever 2, so that the first engagement length is relatively long.

When the push rod assembly is in the folded state, the protrusion 61 is disengaged from the groove 42, and the locking member 4 makes the top 611 of the protrusion 61 abut against the groove top plane 422 of the groove 42 under the elastic force of the elastic member 5, as shown in fig. 6. In this way, the locking member 4 is made relatively far from the end of the second lever 2, so that the second fitting length is relatively short.

In this embodiment, as shown in fig. 9 and 10, a first inclined surface 612 is provided on one side of the convex portion 61, and a second inclined surface 423 that matches the first inclined surface 612 is provided on the side wall of the groove 42. When the unlocking member 6 rotates relative to the locking member 4, the first inclined surface 612 can abut against and cooperate with the second inclined surface 423, so that the protrusion 61 enters the groove 42 along the second inclined surface 423 or is separated from the second groove 42.

In this embodiment, the first ramp 612 is spaced away from the second ramp 423 when the push rod assembly is in the extended state.

When the push rod assembly enables the second rod 2 to rotate towards the direction far away from the first rod 1 in the folded state, the locking piece 4 can be matched with the second rod 2, so that the locking piece 4 is driven to slide for a second matching length towards the direction far away from the second rod 2, and the locking mechanism is unlocked.

The locking piece 4 and the second rod 2 are matched in the following way: as shown in fig. 7 to 9, a fifth inclined surface 411 is disposed on one side of the locking tooth 41, and when the push rod assembly rotates the second rod 2 in a direction away from the first rod 1 in the folded state, the side wall of the second tooth groove 21 can abut against the fifth inclined surface 411 to cooperate, so that the abutting action of the fifth inclined surface 411 can drive the locking member 4 to slide in a direction away from the second rod 2, thereby unlocking the locking mechanism.

The push rod assembly further comprises an unlocking knob 7 and a traction cable, the unlocking knob 7 is movably arranged on the second rod 2, one end of the traction cable is fixedly arranged on the unlocking knob 7, the other end of the traction cable is fixedly arranged on the unlocking piece 6, and the unlocking piece 6 can be matched with one end of the second rod 2.

When the push rod assembly drives the locking mechanism to unlock in the unfolded state, the unlocking piece 6 can be pulled by the traction rope to rotate relative to the second rod 2 when the unlocking knob 7 is operated, one end part of the second rod 2 can be matched with the unlocking piece 6, so that the unlocking piece 6 can slide along the axial direction of the rotating shaft 3 while rotating, and at the moment, due to the abutting effect of the convex part 61 and the groove 42, the locking piece 4 can be driven to slide along the same direction, so that the locking mechanism is unlocked.

As shown in fig. 8 and 11, the unlocking member 6 is engaged with one end portion of the second lever 2 in such a manner that: the unlocking piece 6 is provided with a third inclined surface 62, one end of the second rod 2 is provided with a fourth inclined surface 22 matched with the third inclined surface 62, and the third inclined surface 62 is abutted against the fourth inclined surface 22 to be matched.

When the push rod assembly is folded from the unfolding state, the locking mechanism is unlocked firstly, the unlocking knob 7 is operated, the unlocking piece 6 is pulled through the traction rope to enable the unlocking piece to rotate relative to the second rod 2 and the locking piece 4, the unlocking piece 6 is driven to slide in the direction far away from the second rod 2 through the abutting matching of the third inclined surface 62 and the fourth inclined surface 22, the locking piece 4 is driven to slide in the same direction due to the abutting effect of the convex part 61 and the groove 42, and the locking mechanism is unlocked immediately until the locking piece 4 is disengaged from the second rod 2. In this process, the third inclined surface 62 and the fourth inclined surface 22 are always in a matching state.

The second rod 2 is rotated around the rotating shaft 3 relative to the first rod 1 in the direction of approaching the first rod 1, a limiting part 23 is further arranged at one end of the second rod 2, the limiting part 23 abuts against the unlocking part 6, so that the unlocking part 6 is driven to rotate synchronously when the second rod 2 rotates, the convex part 61 moves in the groove 42 along the length extending direction of the groove 42, and the first inclined surface 612 is gradually close to the second inclined surface 423. When the first inclined plane 612 abuts against the second inclined plane 423, the second rod 2 drives the unlocking member 6 to continuously rotate relative to the first rod 1, so that the unlocking member 6 and the locking member 4 can relatively rotate and slide, the convex portion 61 is separated from the groove 42 along the second inclined plane 423, the top 611 of the convex portion 61 abuts against the groove top plane 422 of the groove 42, at this time, the position of the locking tooth 41 on the locking member 4 corresponds to the position of the second tooth groove 21, the locking member 4 slides in the direction close to the second rod 2 under the action of the elastic force of the elastic member 5, the unlocking member 6 is driven to slide in the same direction, so that the locking mechanism is locked again, at this time, the second rod 2 abuts against the first rod 1, and the push rod assembly is in a folded state. In this process, the third inclined surface 62 and the fourth inclined surface 22 are always in the engaged state.

When the push rod assembly is unfolded from the folded state, the second rod 2 is rotated in the direction away from the first rod 1, the unlocking member 6 is driven to rotate synchronously under the action of the limiting part 23, and the convex part 61 gradually enters the groove 42 along the second inclined plane 423. When the second rod 2 rotates in a direction away from the first rod 1, the side wall of the second tooth groove 21 is abutted against and matched with the fifth inclined surface 411, so that the locking piece 4 slides in a direction away from the second rod 2 until the locking mechanism is unlocked. When the unlocking member 6 is further rotated by the second lever 2 in a direction away from the first lever 1, the protrusion 61 slides in the groove 42 to gradually move the first inclined surface 612 away from the second inclined surface 423. When the second lever 2 is rotated to the extended position, the locking tooth 41 of the locking member 4 corresponds to the position of the second spline 21, and the locking member 4 slides in a direction approaching the second lever 2 by the elastic force of the elastic member 5, so that the locking mechanism is locked again and the push rod assembly is in the extended state.

In this embodiment, the protrusion 61 is provided on the unlocking member 6, and the recess 42 is provided on the locking member 4. Preferably, the protrusions 61 are respectively disposed on two opposite sides of the rotating shaft 3, correspondingly, the grooves 42 are also respectively disposed on two opposite sides of the rotating shaft 3, the protrusion 61 on each side is provided with a first inclined surface 612, and the side wall of the groove 42 on each side is provided with a second inclined surface 423. Make locking mechanical system unblock in-process like this, locking piece 4 atress is more even, and difficult the emergence is twistd reverse to avoid appearing locking piece 4 card and dying can not slide, make the problem that locking mechanical system can not the unblock.

The distance between the protrusions 61 on both sides and the distance between the grooves 42 on both sides are different from the rotating shaft 3, that is, the positions of the protrusions 61 on both sides are staggered in the radial direction, so that when the push rod assembly is folded from the unfolded state or unfolded from the folded state, the unlocking member 6 is driven by the second rod 2 to rotate relative to the first rod 1 and the locking member 4, and no interference occurs.

As shown in fig. 12 and 13, the stroller includes a stroller frame including the push rod assembly described above, and the stroller has an unfolded state and a folded state. When the stroller is in the deployed state, the push rod assembly is in the deployed state, as shown in fig. 12. When the stroller is in the collapsed position, the push rod assembly is in the collapsed position, as shown in fig. 13.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims

1. A push rod assembly comprising a first rod and a second rod, an end of the first rod and an end of the second rod being rotatably connected by a rotating shaft, the push rod assembly further comprising a locking mechanism for locking the relative positions of the first rod and the second rod, the locking mechanism comprising a locking member slidably disposed between an end of the first rod and an end of the second rod, the locking member being engaged with the end of the first rod and the end of the second rod, respectively, when the locking mechanism is in a locked state, and the locking member being engaged with the end of the first rod and the end of the second rod, respectively, when the locking mechanism is in an unlocked state, the locking member being disengaged from the end of the first rod, the push rod assembly characterized in that: push rod assembly has expansion state and fold condition, works as when push rod assembly is in expansion state and fold condition, locking mechanical system all is in the locking state, works as when push rod assembly is in expansion state, the locking piece with first cooperation length has between the one end of second pole, works as when push rod assembly is in fold condition, the locking piece with second cooperation length has between the one end of second pole, first cooperation length is greater than second cooperation length, push rod assembly makes under the fold condition the second pole is to keeping away from during the direction rotation of first pole, the locking piece can with the cooperation of second pole and order about the locking piece slides and makes locking mechanical system unblock.

2. The pushrod assembly of claim 1, wherein: push rod assembly still includes works as order about when push rod assembly is in the expansion state the unblock piece of locking mechanical system unblock, the unblock piece can wind the pivot is rotated and can be followed the axis direction of pivot slides and sets up a tip of second pole, the unblock piece with be provided with the convex part on one part in two parts of locking piece, be provided with on another part with convex part matched with recess, the convex part with the recess is all followed unblock piece pivoted circumferencial direction extends, works as when push rod assembly is in the expansion state, the convex part is located in the recess, just the top of convex part with the tank bottom of recess offsets and establishes, works as when push rod assembly is in fold state, the convex part is followed deviate from in the recess, just the top of convex part with the groove top plane of recess offsets and establishes.

3. The pushrod assembly of claim 2, wherein: one side of convex part is provided with first inclined plane, the lateral wall of recess be provided with first inclined plane matched with second inclined plane, the unlocking piece winds the pivot is relative the locking piece rotates and to make first inclined plane with the cooperation is established in the counterbalance of second inclined plane, and makes the convex part gets into the recess or follows deviate from in the recess.

4. The pushrod assembly of claim 2, wherein: the convex parts are respectively arranged on two opposite sides of the rotating shaft, and/or the distances between the convex parts on two sides and the rotating shaft are different.

5. The pushrod assembly of claim 2, wherein: when the unlocking part rotates relative to the second rod in the unfolded state of the push rod assembly, the unlocking part can be matched with one end part of the second rod.

6. The pushrod assembly of claim 5, wherein: the unlocking piece is provided with a third inclined plane, one end of the second rod is provided with a fourth inclined plane matched with the third inclined plane, and the third inclined plane can be abutted against the fourth inclined plane to be matched with the fourth inclined plane.

7. The pushrod assembly of claim 1, wherein: the locking piece is provided with locking teeth, one end part of the first rod is provided with a first tooth groove matched with the locking teeth, one end part of the second rod is provided with a second tooth groove matched with the locking teeth, when the locking mechanism is in a locking state, the locking teeth are respectively meshed with the first tooth groove and the second tooth groove, and when the locking mechanism is in an unlocking state, the locking teeth are meshed with the first tooth groove and are disengaged from the second tooth groove.

8. The pushrod assembly of claim 7, wherein: one side of locking tooth is provided with the fifth inclined plane, push rod subassembly makes under fold condition the second pole is to keeping away from when the direction of first pole rotates, the lateral wall of second tooth's socket can with the cooperation is established in the counterbalance of fifth inclined plane.

9. The pushrod assembly of claim 1, wherein: the push rod assembly further includes an elastic member for driving the locking member to slide in a direction in which the locking member is engaged with one end of the second rod, one end of the elastic member being disposed on one end of the first rod, and the other end of the elastic member being disposed on the locking member.

10. A stroller, comprising: a putter assembly according to any one of claims 1-9.