CN211167038U

CN211167038U - Children's barrow

Info

Publication number: CN211167038U
Application number: CN201921714177.2U
Authority: CN
Inventors: 马福生; 张阳
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-08-04
Anticipated expiration: 2029-10-14

Abstract

The utility model discloses a children's shallow, including the frame that has expansion state and fold condition, the frame is including dividing two collateral branch framves of establishing in the left and right sides, and the collateral branch frame of every side all includes: the bottom of the front bracket is connected with a front wheel assembly; the bottom of the rear bracket is connected with a rear wheel assembly; the children's shallow still includes and makes rear wheel joint rear support pivoted wheel tilting mechanism relatively along with the frame by expansion state to fold condition conversion, and brake mechanism, wheel tilting mechanism sets up between rear wheel joint and rear support, brake mechanism is including setting up the brake round pin on rear wheel joint, the braking groove that sets up on the rear wheel, the brake follower who is connected with the brake round pin, and set up the brake driving part on the frame, under the frame expansion state, thereby brake driving part and the contact of brake follower control brake mechanism change between state and the brake state of separating, under frame fold condition, the brake driving part with brake follower alternate segregation.

Description

Children's barrow

Technical Field

The utility model relates to a children's articles for use technical field, concretely relates to children's shallow.

Background

The stroller in the prior art comprises a frame having an unfolded state and a folded state, wherein the frame comprises a front support extending obliquely from front to back and upwards, a front wheel assembly connected with the bottom of the front support, a rear support extending obliquely from back to front and upwards, and a rear wheel assembly connected with the bottom of the rear support, in order to make the folded volume of the frame smaller, a wheel turning mechanism is further arranged between the rear support and a rear wheel joint of the rear wheel assembly, the wheel turning mechanism synchronously rotates the rear wheel joint relative to the rear support along with the conversion of the frame from the unfolded state to the folded state, so that when the frame is folded, the rear wheel assembly further turns relative to the rear support, the folding of the stroller is flatter, the volume is smaller, but the structures of the stroller provided with the wheel turning mechanism and the conventional brake mechanism interfere with each other, are not compatible.

Disclosure of Invention

The utility model aims at providing a modified children's shallow to prior art not enough, its brake mechanism can be installing on the children's shallow that has set up wheel tilting mechanism.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a children's shallow, children's shallow is including having the frame of expansion state and fold condition, locating anterior front wheel subassembly at the bottom of the frame, locating rear wheel subassembly at rear portion at the bottom of the frame, the frame is including dividing two collateral branch framves of establishing in the left and right sides, and the collateral branch frame of every side all includes: the front bracket extends obliquely upwards from front to back in the unfolded state of the frame, and the bottom of the front bracket is connected with the front wheel assembly; the rear bracket extends obliquely upwards from back to front in the unfolded state of the frame, and the bottom of the rear bracket is connected with the rear wheel assembly; the rear wheel subassembly include with rear wheel joint that rear bracket bottom is connected and with the rear wheel connects the rear wheel of rotation connection, children's shallow still include along with the frame by the expansion state to fold condition conversion makes the rear wheel joint is relative rear bracket pivoted wheel tilting mechanism and brake mechanism, wheel tilting mechanism set up in the rear wheel connect with between the rear bracket, brake mechanism including set up brake pin on the rear wheel connects, set up brake groove on the rear wheel, with the brake follower that the brake pin is connected and set up the brake driving part on the frame under the expansion state of frame, thereby the brake driving part can with the brake follower contact control brake mechanism is in the conversion between the state of separating brake and the brake state, under the folded state of frame, the brake driving part with the brake follower separates each other.

Furthermore, the wheel turnover mechanism comprises a spiral groove arranged on the rear wheel joint, and the frame further comprises a transverse supporting rod, wherein two ends of the transverse supporting rod are respectively inserted into the spiral grooves on the rear wheel joints on the left side and the right side and are in sliding connection with the spiral grooves, and the transverse supporting rod extends along the left-right direction.

Further, the brake driving part is arranged on the transverse supporting rod, the brake driving part is provided with a first matching surface capable of rotating around the axis of the transverse supporting rod, and the brake driven part is provided with a second matching surface matched with the first matching surface so as to control the brake mechanism to switch between the brake release state and the brake state.

Further, when the brake mechanism is in the braking state, the first matching surface and the second matching surface are separated from each other, and when the brake mechanism is in the braking release state, the first matching surface and the second matching surface are in contact.

Furthermore, first fitting surface has first inclined plane, the second fitting surface has the second inclined plane, works as the brake mechanism by the braking state to when separating the braking state transition, first inclined plane orientation the motion of second inclined plane and contact and promote the brake pin is deviate from in the brake groove.

Further, the brake follower is slidably disposed on the rear wheel joint.

Further, the rear wheel connector is provided with a sliding groove for the brake follower to slide.

Furthermore, brake mechanism still including setting up the elastic component between brake follower and rear wheel connect, the elastic component both ends are supported respectively the brake follower with on the inner wall of sliding tray, the elastic component has the messenger the second fitting surface of brake follower tends towards the required elastic force of first fitting surface motion.

Furthermore, the brake driving part is provided with a brake handle sleeve which is rotatably sleeved on the transverse supporting rod and extends along the left-right direction, and the left end and the right end of the brake handle sleeve are both provided with the first matching surface.

Furthermore, a treading part is fixedly arranged on the brake handle sleeve and extends outwards along the radial direction of the transverse supporting rod.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: on the children's shallow that is provided with wheel tilting mechanism, set up respectively on frame and rear wheel subassembly and make both separation settings through the brake driving part in with brake mechanism and brake follower, both can mutually support control brake mechanism and change between brake state and the state of deblocking under the expansion state of frame like this, under the fold condition of frame, brake follower because the relative frame of rear wheel subassembly rotates and with the separation of brake driving part, the problem that traditional brake mechanism and wheel tilting mechanism interfered has been solved to this novel brake mechanism.

Drawings

Fig. 1 is a perspective view of the stroller of the present invention in a frame-unfolded state;

FIG. 2 is a perspective view of the stroller of the present invention during the folding process of the frame;

FIG. 3 is a perspective view of the rear support and the brake mechanism of the stroller of the present invention;

fig. 4 is an exploded view of the rear support and the brake mechanism of the stroller of the present invention;

FIG. 5 is an enlarged view of portion A of FIG. 4;

fig. 6 is a front view of the rear support and the brake mechanism of the stroller of the present invention, wherein the brake mechanism is in an unlocking state;

fig. 7 is a cross-sectional view of the rear bracket and the brake mechanism of the stroller of the present invention, wherein the brake mechanism is in an unlocking state;

FIG. 8 is a cross-sectional view taken along line D-D of FIG. 6;

FIG. 9 is an enlarged view of portion B of FIG. 8;

fig. 10 is a front view of the rear support and the brake mechanism of the stroller of the present invention, wherein the brake mechanism is in a braking state;

fig. 11 is a cross-sectional view of the rear support and the brake mechanism of the stroller of the present invention, wherein the brake mechanism is in a braking state;

FIG. 12 is a cross-sectional view taken along line E-E of FIG. 10;

FIG. 13 is an enlarged view of portion C of FIG. 12;

fig. 14 is a front view of the rear support and the brake mechanism of the stroller of the present invention, at this time, the frame is in a folded state.

The reference numbers in the figures are:

1. a front bracket; 2. a rear bracket; 3. a front wheel assembly; 4. a rear wheel assembly; 4a, a rear wheel joint; 4b, a rear wheel; 5. a wheel turnover mechanism; 5a, a spiral groove; 6. a brake mechanism; 6a, a brake pin; 6b, a brake groove; 6c, a brake follower; 6d, a brake driving part; 6e, a first mating surface; 6f, a second mating surface; 6g, a first inclined plane; 6h, a second inclined plane; 7. a transverse stay bar; 8. an elastic member; 9. a brake handle cover; 9a, a stepping part; 10. a sliding groove.

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 to 14, the stroller in this embodiment includes a frame having an unfolded state and a folded state, a front wheel assembly 3 provided at a front portion of a bottom of the frame, a rear wheel assembly 4 provided at a rear portion of the bottom of the frame, a wheel turning mechanism 5, and a brake mechanism 6.

As shown in fig. 1, the frame includes two side brackets respectively disposed at the left and right sides, and each side bracket includes: the front support 1, under the unfolded state of the frame, the front support 1 extends from front to back and upwards in an inclined way, and the bottom of the front support 1 is connected with a front wheel assembly 3; the rear bracket 2 is arranged in the unfolded state of the frame, the rear bracket 2 extends forwards from the back and upwards in an inclined mode, and the bottom of the rear bracket 2 is connected with a rear wheel assembly 4.

The rear wheel assembly 4 includes a rear wheel joint 4a connected to the bottom of the rear bracket 2, and a rear wheel 4b rotatably connected to the rear wheel joint 4 a.

The wheel turning mechanism 5 is disposed between the rear wheel joint 4a and the rear support 2, the wheel turning mechanism 5 can rotate the rear wheel joint 4a relative to the rear support 2 along with the frame being converted from the unfolded state to the folded state, as shown in fig. 14, so that the axle of the rear wheel 4b turned to the rear wheel 4b extends along the front-back direction when the frame is folded, thereby making the folding of the stroller more flat, and further reducing the volume, as shown in fig. 7, 11 and 14, specifically, the wheel turning mechanism 5 of the present invention comprises a spiral groove 5a disposed on the rear wheel joint 4a, the frame further comprises a cross brace 7 with two ends respectively inserted into and slidably connected with the spiral groove 5a on the rear wheel joint 4a on the left and right sides, the cross brace 7 extends along the left-right direction, during the folding of the frame, the movement of other members of the frame drives the cross brace 7 to slide in the spiral groove 5a, as shown in fig. 14, thereby finally making the rear wheel joint 4a rotate 90 ° relative to the rear bracket 2, making the axle of the rear wheel 4b extend along the front-rear direction, and the rear wheel 4b is located between the rear brackets 2 on both sides, specifically, it may be that the transverse strut 7 is driven to move upward or the rear wheel joint 4a is driven to move upward, and how other rods of the frame specifically drive the transverse strut 7 to slide in the spiral groove 5a is not the key point of the present invention, which is not described again here.

As shown in fig. 4-5, 7 and 11, the brake mechanism 6 includes a brake pin 6a disposed on the rear wheel connector 4a, a brake groove 6b disposed on the rear wheel 4b, a brake follower 6c connected with the brake pin 6a and slidably disposed on the rear wheel connector 4a, an elastic member 8 disposed between the brake follower 6c and the rear wheel connector 4a, and a brake driving member 6d disposed on the frame, as shown in fig. 8-9 and 12-13, in which the brake driving member 6d can contact with the brake follower 6c to control the brake mechanism 6 to switch between the braking state and the braking state in the frame unfolding state, as shown in fig. 14, and in which the brake driving member 6d and the brake follower 6c are disposed separately from each other.

Specifically, as shown in fig. 5, 9, 11 and 13, the brake driving member 6d includes a brake lever sleeve 9 rotatably sleeved on the cross brace 7 and extending in the left-right direction, and first mating surfaces 6e disposed at two ends of the brake lever sleeve 9 and capable of rotating around the axis of the cross brace 7, the brake follower 6c has a second mating surface 6f mating with the first mating surface 6e to control the brake mechanism 6 to switch between the braking state and the braking state, the rear wheel connector 4a has a sliding slot 10 for the brake follower 6c to slide, two ends of the elastic member 8 respectively abut against the inner walls of the brake follower 6c and the sliding slot 10, the elastic member 8 is used to provide the elastic force required by the second mating surface 6f to tend to move towards the first mating surface 6e, and is optimally configured, as shown in fig. 10-14, when the brake mechanism is in the braking state, the first mating surface and the second mating surface are separated from each other, as shown in fig. 6-9, when the brake mechanism 6 is in the brake-released state, the first engagement surface 6e and the second engagement surface 6f are in contact, so that when the stroller is in the folded state, the first engagement surface 6e and the second engagement surface 6f are separated from each other, the rear wheels 4b cannot rotate because the brake mechanism 6 is in the brake state, and the first engagement surfaces 6e are provided at both ends of the brake handle sleeve 9, which is advantageous in that the brakes of the two rear wheels 4b can be controlled in a linkage manner by controlling the rotation of the brake handle sleeve 9 relative to the axial lead of the transverse supporting rod 7.

Specifically, as shown in fig. 9 and 13, the first matching surface 6e has a first inclined surface 6g, the second matching surface 6f has a second inclined surface 6h, when the brake mechanism is switched from the braking release state to the braking release state, the first matching surface 6e moves away from the second matching surface 6f, so that the brake follower 6c drives the brake pin 6a to be inserted into the brake groove 6b under the driving of the elastic member 8, and when the brake mechanism 6 is switched from the braking release state to the braking release state, the first inclined surface 6g moves towards the second inclined surface 6h and contacts with the second inclined surface 6h to push the brake pin 6a to be removed from the brake groove 6 b.

Preferably, as shown in fig. 3-4 and 6-14, the step portion 9a is further fixedly disposed on the brake lever sleeve 9, and the step portion 9a extends outward in the radial direction of the cross brace 7, which is advantageous in that in the unfolded state of the vehicle frame, the step portion 9a controls the rotation of the brake lever sleeve 9 relative to the axial line of the cross brace 7, so as to control the contact between the first mating surface 6e and the second mating surface 6 f.

Through the application of the technical scheme of the embodiment, the brake driving part 6d and the brake driven part 6c in the brake mechanism 6 are separately arranged, the problem that the traditional brake mechanism is interfered with the wheel turnover mechanism 5 is solved, and the first matching surfaces 6e are arranged at the two ends of the brake handle sleeve 9, so that the treading part 9a can be operated to brake the two rear wheels 4b in a linkage manner.

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 by the protection scope of the present invention.

Claims

1. The utility model provides a children's shallow, children's shallow is including having the frame of expansion state and fold condition, locating anterior front wheel subassembly at the bottom of the frame, locating rear wheel subassembly at rear portion at the bottom of the frame, the frame is including dividing two collateral branch framves of establishing in the left and right sides, and the collateral branch frame of every side all includes:

the front bracket extends obliquely upwards from front to back in the unfolded state of the frame, and the bottom of the front bracket is connected with the front wheel assembly;

the rear bracket extends obliquely upwards from back to front in the unfolded state of the frame, and the bottom of the rear bracket is connected with the rear wheel assembly;

the rear wheel subassembly include with rear wheel joint that rear bracket bottom is connected and with the rear wheel that the rear wheel joint rotates to be connected, its characterized in that:

the child stroller further comprises a wheel turning mechanism and a brake mechanism, wherein the wheel turning mechanism enables the rear wheel joint to rotate relative to the rear support when the frame is converted from the unfolding state to the folding state, the wheel turning mechanism is arranged between the rear wheel joint and the rear support,

brake mechanism is including setting up brake round pin, setting on the rear wheel connects are in brake groove on the rear wheel, with brake follower and setting that the brake round pin is connected are in brake driving part on the frame under the expansion state of frame, brake driving part can with the brake follower contacts control thereby brake mechanism is separating the switching between state and the brake state the fold condition of frame, brake driving part with brake follower alternate segregation.

2. The stroller of claim 1, wherein: the wheel turnover mechanism comprises a spiral groove arranged on the rear wheel joint, and the frame further comprises a transverse supporting rod, wherein two ends of the transverse supporting rod are respectively inserted into the spiral grooves on the rear wheel joints on the left side and the right side and are in sliding connection with the spiral grooves, and the transverse supporting rod extends along the left-right direction.

3. The stroller of claim 2, wherein: the brake driving part is arranged on the transverse supporting rod and provided with a first matching surface capable of rotating around the axis of the transverse supporting rod, and the brake driven part is provided with a second matching surface matched with the first matching surface so as to control the brake mechanism to switch between the brake release state and the brake state.

4. The stroller of claim 3, wherein: when the brake mechanism is in when the brake state, first fitting surface with the second fitting surface alternate segregation, works as the brake mechanism is in when the state of separating stops, first fitting surface and second fitting surface contact.

5. The stroller of claim 4, wherein: the first matching surface is provided with a first inclined surface, the second matching surface is provided with a second inclined surface, and when the brake mechanism is switched from the brake state to the brake release state, the first inclined surface moves towards the second inclined surface and contacts with the second inclined surface to push the brake pin to be disengaged from the brake groove.

6. The stroller of claim 3, wherein: the brake follower is slidably disposed on the rear wheel joint.

7. The stroller of claim 6, wherein: the rear wheel joint is provided with a sliding groove for the brake follower to slide.

8. The stroller of claim 7, wherein: the brake mechanism is still including setting up the elastic component between brake follower and rear wheel connect, the elastic component both ends are supported respectively the brake follower with on the inner wall of sliding tray, the elastic component has the messenger the second fitting surface of brake follower tends towards the required elastic force of first fitting surface motion.

9. The stroller of claim 3, wherein: the brake driving part is provided with a brake handle sleeve which is rotatably sleeved on the transverse supporting rod and extends along the left-right direction, and the left end and the right end of the brake handle sleeve are both provided with the first matching surface.

10. The stroller of claim 9, wherein: the brake handle sleeve is also fixedly provided with a treading part, and the treading part extends outwards along the radial direction of the transverse supporting rod.