CN213831846U

CN213831846U - Children's barrow

Info

Publication number: CN213831846U
Application number: CN202022246316.2U
Authority: CN
Inventors: 高翔; 李照国
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-07-30
Anticipated expiration: 2030-10-10

Abstract

The utility model discloses a children's shallow, include the frame, locate anterior front wheel subassembly at the bottom of the frame, locate rear wheel subassembly at rear portion at the bottom of the frame, the frame is including dividing two sets of collateral branch framves of locating the left and right sides to and set up adjustably along left right direction width and be two sets of stull subassembly between the collateral branch frame, the frame is still including being used for the adjustment stull subassembly width is in order to change the width adjustment mechanism of frame width, the stull subassembly includes the many stulls that extend along left right direction, width adjustment mechanism sets up two at least between the stull. The width of this stull subassembly is adjusted in step through setting up width adjustment mechanism between at least two stulls of stull subassembly to make the width of frame take place corresponding adjustment, this makes the frame stability better at width adjustment's in-process, and the operation is also more light laborsaving.

Description

Children's barrow

Technical Field

The utility model relates to a children's shallow especially relates to a children's shallow with adjustable frame width.

Background

The stroller in the prior art includes a stroller frame having an unfolding position and a folding position, a front wheel assembly and a rear wheel assembly disposed at the bottom of the stroller frame, and a locking mechanism for locking the stroller frame in the unfolding state. However, the width of the frame of the stroller is fixed, so that the stroller can only be additionally provided with the adaptive assembly for adapting to carrying devices such as seats with different widths, infant car seats and the like, the installation steps are complicated, the adaptive assembly is easy to lose, and the stroller is inconvenient to use.

Disclosure of Invention

The utility model aims at providing a children's shallow that frame width can conveniently be adjusted.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a children's shallow, includes the frame, locates the anterior front wheel subassembly at the bottom of the frame, locate the rear wheel subassembly at rear portion at the bottom of the frame, the frame is including dividing two sets of collateral branch framves of locating the left and right sides to and set up adjustably along left right direction width and be two sets of stull subassembly between the collateral branch frame, the frame is still including being used for adjusting stull subassembly width is in order to change the width adjustment mechanism of frame width, the stull subassembly includes the many studdle that extend along left right direction, width adjustment mechanism sets up at least two between the studdle.

Preferably, each of the transverse support rods includes a first support rod connected to the side support on one side and a second support rod connected to the side support on the other side, and the first support rod and the second support rod are connected to each other in a relatively sliding manner in the left-right direction.

Further, the width adjusting mechanism comprises a rack fixedly arranged on the first support rod and extending along the left-right direction, a connecting shaft extending along the front-back direction and being capable of rotating around the axis of the connecting shaft and being connected with the at least two second support rods, and a gear fixedly arranged on the connecting shaft, wherein the gear and the rack are arranged in a mutually meshed mode.

Furthermore, the gear is provided with a plurality of gears which are arranged on the connecting shaft at intervals along the front-back direction, the first support rods are provided with the racks, and the racks and the gears are meshed with each other in a one-to-one correspondence mode.

As a preferred embodiment, the second support rod is slidably sleeved on the first support rod, an open slot communicated with an inner cavity of the second support rod is formed in the second support rod, and at least part of the gear penetrates into the open slot and is meshed with the rack.

As a preferred embodiment, the width adjustment mechanism includes a first conversion lever having one end portion rotatably connected to the first stay by a first shaft, a second conversion lever having one end portion rotatably connected to the second stay by a second shaft, the other end portion of the first conversion lever and the other end portion of the second conversion lever being rotatably connected by a third shaft, the wale assembly having an extended state and a shortened state, the third shaft being located between the first shaft and the second shaft in the left-right direction when the wale assembly is in the extended state; when the stull subassembly is in the state of shortening, the first axle is located on the left and right sides the second axle with between the third axle, first conversion pole around the first axle drives when overturning about the first axle the stull subassembly is in the extension state with shorten the conversion between the state.

As another preferred embodiment, the width adjusting mechanism includes a first converting rod having one end portion rotatably connected to the first support rod through a first shaft, a second converting rod having one end portion rotatably connected to the second support rod through a second shaft, the first converting rod is provided with a plurality of shift holes at intervals along the left-right direction, the second converting rod is provided with a positioning hole, and the width adjusting mechanism further includes a positioning pin capable of being inserted into the positioning hole and one of the shift holes.

Further preferably, the side brackets include bottom bars extending in the front-rear direction, front support bars extending gradually upward from the front to the rear, and rear support bars extending in the up-down direction, lower portions of the front support bars are connected to front portions of the bottom bars, the rear support bars are provided between upper portions of the front support bars and rear portions of the bottom bars, at least two transverse support bars are provided between the bottom bars on both sides, and the width adjustment mechanism is provided between the at least two transverse support bars.

Preferably, the frame still including push away the handle frame, locate both sides just can follow the flexible preceding stull of left right direction between the front portion at the bottom of the collateral branch frame, locate both sides just can follow the flexible last stull of left right direction between the collateral branch frame upper portion, the front wheel subassembly can be located along left right direction relative slip on the preceding stull, push away the handle frame and can set up along left right direction relative slip on the last stull, frame width variation's in-process, the front wheel subassembly push away the handle frame and be located all the time frame width direction's intermediate position.

Furthermore, a group of limiting structures are respectively arranged between the front wheel assembly and the front cross brace and between the upper cross brace and the push handle frame, the front cross brace and the upper cross brace respectively comprise an outer cross bar and an inner cross bar which slide and stretch along the length direction, each limiting structure comprises a first limiting groove arranged on the outer cross bar, a second limiting groove arranged on the inner cross bar and a limiting pin arranged on the front wheel assembly/the push handle frame, the limiting pins are arranged in the first limiting grooves and the second limiting grooves in a sliding fit manner, the frame is provided with two switchable width using positions, when the frame is at the first width using position, the outer cross bar and the inner cross bar relatively extend, and the limiting pins are clamped between the inner end of the first limiting groove and the inner end of the second limiting groove; when the frame is located at the second width using position, the outer cross rod and the inner cross rod are relatively shortened, and the limiting pin is clamped between the outer end of the first limiting groove and the outer end of the second limiting groove.

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 children's shallow wherein through set up the stull subassembly that the width is adjustable between the side support about the frame to set up width adjustment mechanism between two piece at least stulls of stull subassembly and adjust the width of this stull subassembly synchronously, so that the width of frame takes place corresponding adjustment, and this makes the frame stability at width adjustment's in-process better, and the operation is also more light laborsaving.

Drawings

Fig. 1 is a schematic perspective view of a stroller according to embodiment 1 of the present invention;

FIG. 2 is an exploded view of the stroller of FIG. 1;

fig. 3 is a schematic view showing the connection between the cross brace assembly and the side brackets of the stroller of embodiment 1, wherein the cross brace assembly is in a shortened state;

FIG. 4 is a schematic front view of FIG. 3;

FIG. 5 is a schematic sectional view taken along line A-A of FIG. 4;

FIG. 6 is a schematic view taken along line B of FIG. 4;

FIG. 7 is a schematic view of the cross-brace assembly of the stroller of FIG. 4 in an extended position;

fig. 8 is a schematic connection diagram of the auxiliary stay bar assembly and the side brackets of the stroller of embodiment 1, wherein the auxiliary stay bar assembly is in a contracted state;

fig. 9 is a schematic view of the stroller of fig. 8 with the strut assembly in an extended position;

fig. 10 is a schematic view showing a connection structure of a front cross brace in the stroller of embodiment 1;

fig. 11 is a front view of the stroller of embodiment 2 of the present invention (with the front wheel assembly and the rear wheel assembly removed), in which the cross-brace assembly is in a shortened state;

fig. 12 is a schematic view of the cross-brace assembly of the stroller of fig. 11 during width adjustment;

fig. 13 is a schematic view of the cross-brace assembly of the stroller of fig. 11 in an extended position;

fig. 14 is a front view of the stroller of embodiment 3 of the present invention (with the front and rear wheel assemblies removed), in which the cross-brace assembly is in a shortened state;

fig. 15 is a schematic view of the cross-brace assembly of the stroller of fig. 14 during width adjustment;

fig. 16 is a schematic view of the cross-brace assembly of the stroller of fig. 14 in an extended position;

wherein: 10. a side bracket; 101. a bottom bar; 102. a front support rod; 103. a rear support rod;

20. a cross brace assembly; 201. a first stay bar; 202. a second stay bar; 203. an open slot;

30. a front wheel assembly; 301. a front wheel seat; 302. a front wheel; 40. a handle pushing frame; 50. a rear wheel assembly; 60. an auxiliary stay bar assembly; 601. a diagonal brace; 602. a flat stay bar;

70. a front cross brace; 701. an outer cross bar; 702. an inner cross bar; 703. a first limit groove; 704. a second limit groove; 705. a spacing pin;

80. an upper cross brace; 801. an outer cross bar; 802. an inner cross bar; 803. a first limit groove; 804. a second limit groove;

1. a rack; 2. a gear; 3. a connecting shaft; 4. a first conversion lever; 41. a gear hole; 5. a second switching lever; 51. positioning holes; 6. a first shaft; 7. a second shaft; 8. a third axis; 9. and a positioning pin.

Detailed Description

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

Example 1

Referring to fig. 1 to 10, the stroller includes a frame, a front wheel assembly 30 disposed at a front portion of the frame bottom, a rear wheel assembly 50 disposed at a rear portion of the frame bottom, wherein the frame includes two sets of side brackets 10 respectively disposed at left and right sides, and a cross brace assembly 20 adjustably disposed between the two sets of side brackets 10 in a left-right direction, and the frame further includes a width adjustment mechanism for adjusting a width of the cross brace assembly 20 to change a width of the frame.

Specifically, the cross brace assembly 20 includes a plurality of cross braces extending in the left-right direction, each of the cross braces includes a first brace 201 connected to the side bracket 10 on one side and a second brace 202 connected to the side bracket 10 on the other side, and the first brace 201 and the second brace 202 are connected to be relatively slidable in the left-right direction.

In the stroller of the present embodiment, as shown in fig. 1 and 2, each side frame 10 includes a bottom bar 101 extending in the front-rear direction, a front bar 102 extending obliquely upward from front to rear, and a rear bar 103 extending in the up-down direction, wherein the lower portion of the front bar 102 is connected to the front portion of the bottom bar 101, and the rear bar 103 is disposed between the upper portion of the front bar 102 and the rear portion of the bottom bar 101. At least two transverse supporting rods are arranged between the bottom rods 101 at two sides, and a width adjusting mechanism is arranged between the at least two transverse supporting rods so as to be used for linkage and synchronism of stretching in the left and right directions between different parts of the frame.

In this embodiment, the width adjustment mechanism includes a connecting shaft 3 extending in the front-rear direction, and the connecting shaft 3 is rotatably connected to at least two second stays 202 around its axis. The width adjusting mechanism further comprises a rack 1 fixedly arranged on the first support rod 201 and extending along the left-right direction, and a gear 2 fixed on the connecting shaft 3, wherein the gear 2 is coaxially arranged with the connecting shaft 3. When the first stay bar 201 and the second stay bar 202 slide relatively to each other to extend and retract the cross braces so that the width of the frame is changed, the gear 2 rotates and is meshed with the rack 1, so that the first stay bar 201 and the second stay bar 202 of a plurality of groups of cross braces are synchronously extended or shortened along the left-right direction, the extending and retracting movements of the frame 1 at different positions in the front-back direction in the left-right direction are synchronously maintained, that is, the relative movement of the frames 10 at two sides is more stable, and the width of the frame is more stable in the adjusting process.

The gear 2 has a plurality of that set up on connecting axle 3 along fore-and-aft direction interval, all is provided with rack 1 on the many first vaulting poles 201, and rack 1 and gear 2 intermeshing one-to-one. Here, two sets of the gear 2 and the rack 1 are respectively provided, and the two sets of the gear 2 and the rack 1 are meshed with each other to move synchronously all the time.

In this embodiment, referring to fig. 5, the second support rod 202 is slidably sleeved on the first support rod 201, the second support rod 202 is provided with an open slot 203 communicated with an inner cavity thereof, the rack 1 can be slidably fitted into the inner cavity of the second support rod 202 along with the first support rod 201, and a part of the tooth portion of the gear 2 penetrates into the open slot 203 and is engaged with the rack 1 located in the inner cavity of the second support rod 202.

In the stroller of this embodiment, an additional strut assembly 60 is further disposed between the side brackets 10 at two sides, specifically between the rear struts 103 at two sides, where the additional strut assembly 60 includes two rod sets consisting of a diagonal strut 601 and a flat strut 602, in each of the rod sets, one end of the flat strut 602 is rotatably connected to the upper end of the diagonal strut 601, the other end of the flat strut 602 is rotatably connected to the rear strut 103 at one side, the lower end of the diagonal strut 601 is rotatably connected to the rear strut 103 at the other side, and the two diagonal struts 601 intersect each other and are rotatably connected at the intersection. When the frame width changes and the cross brace assembly 20 extends or shortens, the two diagonal braces 601 rotate with each other, and the flat brace 602 rotates relative to the diagonal brace 601, so that the auxiliary brace assembly 60 expands or contracts relatively, and the distance between the rear struts 103 on the two sides is adjusted correspondingly.

In the stroller of this embodiment, the frame further includes a push handle frame 40, a front support frame 70 which is disposed between the front portions of the two side supports 10 and can extend and retract in the left-right direction, and an upper cross brace 80 which is disposed between the upper portions of the two side supports 10 and can extend and retract in the left-right direction, the front wheel assembly 30 can be disposed on the front cross brace 70 in a manner of relative sliding in the left-right direction, the push handle frame 40 can be disposed on the upper cross brace 80 in a manner of relative sliding in the left-right direction, and in the process of frame width change, the front wheel assembly 30 and the push handle frame 40 are always located at the middle position in the frame width direction.

A group of limit structures are respectively arranged between the front wheel assembly 30 and the front cross brace 70 and between the upper cross brace 80 and the push handle frame 40. Specifically, referring to fig. 2 and 10, the front cross brace 70 includes an outer cross bar 701 and an inner cross bar 702 that slide and stretch along the length direction, the limiting structure includes a first limiting groove 703 disposed on the outer cross bar 701 and a second limiting groove 704 disposed on the inner cross bar 702, the front wheel assembly 30 includes a front wheel seat 301 and a front wheel 302 mounted at the bottom of the front wheel seat 301, and the front wheel seat 301 has a sleeve 301a slidably sleeved on the front cross brace 70. The limiting structure further includes a limiting pin 705 disposed on the front wheel base 301, and the limiting pin 705 is slidably disposed in the first limiting groove 703 and the second limiting groove 704. The frame of the embodiment has two switchable width use positions, when the frame is at the first width use position, the wale assembly 20 is in an extension state, the outer cross bar 701 and the inner cross bar 702 are extended relatively, and the limit pin 705 is clamped between the inner end of the first limit groove 703 and the inner end of the second limit groove 704; when the frame is at the second width use position, the cross brace assembly 20 is in a shortened state, the outer cross bar 701 and the inner cross bar 702 are relatively shortened, and the limit pin 705 is clamped between the outer end of the first limit groove 703 and the outer end of the second limit groove 704.

Similarly, the upper cross brace 80 includes an outer cross bar 801 and an inner cross bar 802 which are slidably and telescopically arranged along the length direction, the limiting structure includes a first limiting groove 803 arranged on the outer cross bar 801 and a second limiting groove 804 arranged on the inner cross bar 802, the handle pushing frame 40 has a sleeve 401 slidably sleeved on the upper cross brace 80, and the limiting structure further includes a limiting pin (not shown in the figure) arranged on the sleeve 401, and the limiting pin is slidably arranged in the first limiting groove 803 and the second limiting groove 804 in a penetrating manner.

The stroller also includes a locking mechanism for locking the frame in the adjusted width position.

Therefore, when the width of the frame needs to be adjusted, the locking mechanism is unlocked, then the side support 10 on one side is pulled outwards or the side support 10 on one side is pushed inwards, so that the cross brace assembly 20 between the two groups of side supports 10 is relatively slid to extend or be slid to shorten, the gear 2 of the width adjusting mechanism is matched with the rack 1, the motion amount of each position of the side supports 10 on the two sides in the front-back direction in the left-right direction is kept consistent, the width adjustment of the frame is more stable, and the operation is more stable and labor-saving; the two sets of rear wheel assemblies 50 move synchronously with the corresponding side brackets 10, so that the distance between the two sets of rear wheel assemblies 50 changes; in the process of the width change of the frame, the push handle frames 40 and the front wheel assemblies 30 on the two sides are always positioned in the middle of the width direction of the frame.

Example 2

Referring to fig. 11 to 13, the present embodiment is mainly different from embodiment 1 in the arrangement of the width adjustment mechanism.

In the present embodiment, the width adjustment mechanism includes a first switching lever 4 having one end portion rotatably connected to the first stay 201 via a first shaft 6, a second switching lever 5 having one end portion rotatably connected to the second stay 202 via a second shaft 7, and the other end portion of the first switching lever 4 and the other end portion of the second switching lever 5 are rotatably connected via a third shaft 8.

The wale assembly 20 has an extended state and a shortened state, and when in the shortened state, as shown in fig. 11, the first shaft 6 is located between the second shaft 7 and the third shaft 8 in the left-right direction; when in the extended state, the third shaft 8 is located between the first shaft 6 and the second shaft 7 in the left-right direction, as shown in fig. 13. Referring to fig. 12, when the first switching rod 4 is turned left and right around the first shaft 6, the cross-brace assembly 20 is driven to switch between the extended state and the shortened state, and the operation is very convenient. In this embodiment, the first and second conversion levers 4 and 5 are both configured as U-shaped levers and are connected between two transverse support rods respectively.

Example 3

Referring to fig. 14 to 16, the present embodiment is mainly different from embodiment 1 in the arrangement of the width adjustment mechanism.

In the present embodiment, the width adjustment mechanism includes a first conversion lever 4 having one end portion rotatably connected to the first stay 201 via a first shaft 6, and a second conversion lever 5 having one end portion rotatably connected to the second stay 202 via a second shaft 7, and the first conversion lever 4 and the second conversion lever 5 are both configured as U-shaped levers and are each connected between two transverse stays. A plurality of gear holes 41 are formed in the first conversion rod 4 at intervals in the left-right direction, a positioning hole 51 is formed in the second conversion rod 5, and the width adjusting mechanism further comprises a positioning pin 9 capable of penetrating through the positioning hole 51 and one of the gear holes 41. In a state where the first switching lever 4 is turned leftward or backward, the positioning pin 9 is inserted into the positioning hole 51 and one of the shift holes 41, respectively, so that the vehicle frame can have more switchable width positions.

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, includes the frame, locates the anterior front wheel subassembly in the frame bottom, locate the rear wheel subassembly at rear portion in the frame bottom, its characterized in that: the frame comprises two groups of side supports which are respectively arranged on the left side and the right side, and a cross brace assembly which is adjustably arranged between the two groups of side supports along the left-right direction, the frame further comprises a width adjusting mechanism which is used for adjusting the width of the cross brace assembly so as to change the width of the frame, the cross brace assembly comprises a plurality of cross braces which extend along the left-right direction, and the width adjusting mechanism is arranged between at least two cross braces.

2. The stroller of claim 1, wherein: each transverse supporting rod comprises a first supporting rod connected with the side support on one side and a second supporting rod connected with the side support on the other side, and the first supporting rod and the second supporting rod can be connected in a relative sliding mode along the left-right direction.

3. The stroller of claim 2, wherein: the width adjusting mechanism comprises a rack which is fixedly arranged on the first support rod and extends along the left-right direction, a connecting shaft which extends along the front-back direction and can be connected with at least two second support rods in a rotating mode around the axis of the connecting shaft, and a gear which is fixedly arranged on the connecting shaft, wherein the gear and the rack are arranged in an engaged mode.

4. The stroller of claim 3, wherein: the gear has along fore-and-aft direction interval ground setting a plurality ofly on the connecting axle, many be provided with on the first vaulting pole the rack, the rack with the gear one-to-one ground intermeshing.

5. The stroller of claim 3, wherein: the second support rod is slidably sleeved on the first support rod, an open groove communicated with an inner cavity of the second support rod is formed in the second support rod, and at least part of the gear penetrates into the open groove and is meshed with the rack.

6. The stroller of claim 2, wherein: the width adjusting mechanism comprises a first conversion rod with one end part rotationally connected to the first support rod through a first shaft, a second conversion rod with one end part rotationally connected to the second support rod through a second shaft, the other end part of the first conversion rod is rotationally connected with the other end part of the second conversion rod through a third shaft,

the cross brace assembly has an extended state and a shortened state, and the third shaft is located between the first shaft and the second shaft in the left-right direction when the cross brace assembly is in the extended state; when the stull subassembly is in the state of shortening, the first axle is located on the left and right sides the second axle with between the third axle, first conversion pole around the first axle drives when overturning about the first axle the stull subassembly is in the extension state with shorten the conversion between the state.

7. The stroller of claim 2, wherein: the width adjusting mechanism comprises a first conversion rod and a second conversion rod, one end of the first conversion rod is rotationally connected to the first supporting rod through a first shaft, one end of the second conversion rod is rotationally connected to the second supporting rod through a second shaft, a plurality of gear holes are formed in the first conversion rod at intervals in the left-right direction, a positioning hole is formed in the second conversion rod, and the width adjusting mechanism further comprises a positioning pin which can penetrate through the positioning hole and one of the gear holes.

8. Child stroller according to any of claims 2 to 7, characterized in that: the side support comprises bottom rods extending in the front-back direction, front support rods gradually inclining upwards from front to back, and rear support rods extending in the up-down direction, the lower portions of the front support rods are connected with the front portions of the bottom rods, the rear support rods are arranged between the upper portions of the front support rods and the rear portions of the bottom rods, at least two transverse support rods are arranged between the bottom rods on the two sides, and the width adjusting mechanism is arranged between the at least two transverse support rods.

9. Child stroller according to any of claims 1 to 7, characterized in that: the frame is still including pushing away the handle frame, locating both sides just can follow the flexible preceding stull of left right direction between the collateral branch frame bottom front portion, locate both sides just can follow the flexible last stull of left right direction between the collateral branch frame upper portion, the front wheel subassembly can be followed left right direction and locate with sliding relatively on the preceding stull, it can follow left right direction and set up with sliding relatively on the last stull to push away the handle frame, the in-process that the frame width changes, the front wheel subassembly push away the handle frame and lie in all the time frame width direction's intermediate position.

10. The stroller of claim 9, wherein: a group of limiting structures are respectively arranged between the front wheel assembly and the front cross brace and between the upper cross brace and the push handle frame, the front cross brace and the upper cross brace both comprise an outer cross bar and an inner cross bar which are telescopic and slide along the length direction, the limiting structures comprise a first limiting groove arranged on the outer cross bar, a second limiting groove arranged on the inner cross bar and a limiting pin arranged on the front wheel assembly/the push handle frame, the limiting pin is arranged in the first limiting groove and the second limiting groove in a sliding fit manner,

the frame is provided with two switchable width using positions, when the frame is located at a first width using position, the outer cross rod and the inner cross rod extend relatively, and the limiting pin is clamped between the inner end of the first limiting groove and the inner end of the second limiting groove; when the frame is located at the second width using position, the outer cross rod and the inner cross rod are relatively shortened, and the limiting pin is clamped between the outer end of the first limiting groove and the outer end of the second limiting groove.