CN215322815U

CN215322815U - Children's barrow

Info

Publication number: CN215322815U
Application number: CN202120695490.7U
Authority: CN
Inventors: 贺新军
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2020-05-09
Filing date: 2021-04-06
Publication date: 2021-12-28
Anticipated expiration: 2031-04-06
Also published as: CN113276933A; CN113276933B

Abstract

The utility model discloses a child stroller, which comprises a stroller frame, a wheel assembly and a brake mechanism with braking and braking states, wherein the stroller frame comprises a push rod assembly and a push handle rotationally connected with the push rod assembly, the brake mechanism comprises a brake pin assembly movably arranged, the stroller further comprises a driving mechanism, the driving mechanism comprises a driving piece and a flexible connecting piece, the driving piece and the flexible connecting piece are movably arranged on the push rod assembly and matched with or movably connected with the push handle, two end parts of the flexible connecting piece are respectively connected with the brake pin assembly and the driving piece, and when the push handle is held by hands to enable the push handle to rotationally drive the driving piece to move relative to the push rod assembly, the flexible connecting piece is stretched along a first direction to enable the brake mechanism to be braked. When the hand grips the push handle, the brake mechanism brakes to prevent the stroller from advancing, so that the accident that the stroller is out of control is avoided.

Description

Children's barrow

Technical Field

The utility model relates to the technical field of children products, in particular to a stroller.

Background

The child stroller provides great convenience for adults to carry small children for outdoor activities, so that the child stroller gradually becomes a necessity for adults to carry children for outdoor activities, and therefore, the safety problem of the child stroller in use must be considered.

In order to improve the safety performance of the stroller during use, the stroller is generally provided with a brake mechanism. The brake mechanisms of the existing stroller in the market are generally of a manual type or an electronic induction type, for the manual type brake mechanism, when the stroller stops moving, the brake mechanism needs to be operated additionally to lock the wheel assembly, and when a household forgets to operate the brake mechanism due to negligence, the stroller has the risk of being out of control; for the electronic induction type brake mechanism, parents need to check whether the battery power and the circuit function are normal before using, otherwise, the situation that the circuit is powered off to cause the abnormal function of the brake mechanism may occur in the using process, and the baby stroller also has the risk of being out of control. Therefore, no matter the manual or electronic induction type brake mechanism is adopted, the child stroller has certain potential safety hazards.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to address the deficiencies of the prior art by providing an improved stroller.

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

the utility model provides a children's shallow, includes the shallow frame, sets up the wheel subassembly and the setting of shallow frame bottom the wheel subassembly are in brake mechanism on the wheel subassembly, the shallow frame includes push rod subassembly and is pushing away the handle that is used for the people hand to grip when pushing away the children's shallow, brake mechanism has brake and the state of deblocking, brake mechanism is including the brake round pin subassembly that the activity set up, the push rod with the push rod subassembly rotates mutually to be connected, children's shallow still including being used for driving brake mechanism at the brake state and the actuating mechanism who separates the switching between the state of deblocking, actuating mechanism includes activity setting on the push rod subassembly and with push rod cooperation or swing joint's driving piece and flexible connecting piece, flexible connecting piece's both ends respectively with brake round pin subassembly with the driving piece is connected, when the people hand grips the push rod makes the push rod rotate the drive the driving piece is relative when the push rod subassembly moves, the flexible connecting piece is stretched along a first direction to enable the brake mechanism to be released.

Preferably, the drive member is rotatably disposed on the push rod assembly.

Furthermore, a first gear is fixedly arranged on the pushing handle, a second gear is fixedly arranged on the driving piece, and the first gear is meshed with the second gear.

Furthermore, the driving part is provided with a connecting part, the connecting part of the flexible connecting piece and the driving part is positioned on the connecting part, the driving part and the rotating shaft which is rotationally connected with the push rod assembly and the connecting part are respectively positioned on two opposite sides of the driving part, and the reference circle diameter of the first gear is larger than that of the second gear.

Furthermore, the push handle is rotatably connected with the driving piece, and a rotating shaft which is rotatably connected with the driving piece is fixedly arranged on one of the push handle and the driving piece and can be arranged in a sliding manner relative to the other part.

Further, be provided with connecting portion on the driving piece, flexible connection spare with the junction of driving piece is located on the connecting portion on the driving piece, the driving piece with push rod subassembly rotate the pivot of connecting with connecting portion are located respectively the relative both sides of driving piece, the driving piece with push rod subassembly rotate the pivot of connecting with distance between the connecting portion is greater than push away with the driving piece rotate the pivot of connecting the driving piece with push rod subassembly rotates the distance between the pivot of connecting.

Preferably, the driving mechanism further comprises a guide member for guiding the trend of the flexible connecting member, the guide member is rotatably arranged in the push rod assembly, and the flexible connecting member is wound through the guide member.

Preferably, the driving mechanism further comprises a first elastic member for driving the brake mechanism to return from the brake release state to the brake state when the push handle is released, two end portions of the first elastic member are respectively arranged on the brake pin assembly and the cart frame, and when the push handle is released, the elastic force of the first elastic member drives the flexible connecting member to be stretched in a second direction opposite to the first direction so that the push handle is rotationally returned relative to the push rod assembly.

Preferably, the driving mechanism further comprises a second elastic member for driving the push handle to return when the push handle is released, and two end portions of the second elastic member are respectively arranged on the push handle and the push rod assembly.

Preferably, the push rod assembly comprises a push rod which extends from the front to the back and upwards in an inclined mode to be positioned below the push handle, when the child stroller is pushed, the push handle rotates downwards to be close to the push rod, and when the push handle is released, the push handle rotates upwards to be far away from the push rod.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the stroller has a simple structure, when the push handle is not held by hands, the brake mechanism brakes to prevent the stroller from advancing, so that the accident that the stroller is out of control is avoided, the safety performance of the stroller in use is greatly improved, when the push handle is held by hands and is rotated, the driving piece matched with or connected with the push handle can be driven to rotate relative to the push rod assembly, so that the brake mechanism can be pulled through the flexible connecting piece to brake, the stroller can move forwards or backwards at will, and the stroller is very convenient to use.

Drawings

FIG. 1 is a schematic structural view of the stroller of the present invention;

fig. 2 is a schematic structural view of a push handle portion of the stroller of the present invention (embodiment 1, the brake mechanism is in a braking state);

fig. 3 is a schematic structural view of a wheel assembly portion of the stroller of the present invention (embodiment 1, the braking mechanism is in a braking state);

fig. 4 is a schematic structural view of a push handle portion of the stroller of the present invention (embodiment 1, the brake mechanism is in an unlocked state);

fig. 5 is a schematic structural view of a wheel assembly portion of the stroller of the present invention (embodiment 1, the brake mechanism is in an unlocked state);

FIG. 6 is an exploded view of the push handle portion of the stroller of the present invention (example 1);

fig. 7 is a schematic structural view of a push handle portion of the stroller of the present invention (embodiment 2, the brake mechanism is in a braking state);

fig. 8 is a schematic structural view of a wheel assembly portion of the stroller of the present invention (embodiment 2, the braking mechanism is in a braking state);

fig. 9 is a schematic structural view of a push handle portion of the stroller of the present invention (embodiment 2, the brake mechanism is in an unlocked state);

fig. 10 is a schematic structural view of a wheel assembly portion of the stroller of the present invention (embodiment 2, the brake mechanism is in an unlocked state);

fig. 11 is an exploded view of the push handle portion of the stroller of the present invention (example 2).

Wherein: 1. a cart frame; 11. a push handle; 111. a first gear; 12. a push rod assembly; 121. a push rod; 122. a fixed seat; 13. a rear wheel joint; 21. a front wheel assembly; 22. a rear wheel assembly; 3. a brake handle; 41. a drive member; 411. a second gear; 412. a connecting portion; 413. a chute; 42. a flexible connector; 51. a first elastic member; 52. a second elastic member; 61. a first shaft; 62. a second shaft; 63. a third axis; 7. a guide member.

Detailed Description

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

Example 1

As shown in fig. 1, the stroller of the present invention includes a stroller frame 1, a wheel assembly provided at the bottom of the stroller frame 1, and a brake mechanism for braking the wheel assembly to prevent the stroller from traveling.

The stroller frame 1 comprises a push rod assembly 12 and a push handle 11 for being held by a hand of a person when the stroller is pushed, and the push handle 11 and the push rod assembly 12 are rotatably connected through a first shaft 61.

The push rod assembly 12 comprises a push rod 121, the push rod 121 extends obliquely upwards from front to back to be positioned below the push handle 11, and the push handle 11 can rotate relative to the push rod assembly 12 to be close to or far away from the push rod 121.

The wheel assembly includes a front wheel assembly 21 and a rear wheel assembly 22, and in this embodiment, the brake mechanism has a braking state in which it cooperates with the rear wheel assembly 22 to prevent travel of the rear wheel assembly 22 and an unlocked state in which it is disengaged from the rear wheel assembly 22 to allow travel of the rear wheel assembly 22.

The brake mechanism comprises a brake disc fixedly arranged on the rear wheel component 22 and a brake pin component movably arranged on the cart frame 1, the brake pin component comprises a brake pin and a brake handle 3 which are respectively movably arranged on the cart frame 1, and the brake pin can be matched with or separated from the brake disc. When the brake mechanism is in a braking state, the brake pin is matched with the brake disc, and when the brake mechanism is in a braking releasing state, the matching between the brake pin and the brake disc is released. In this embodiment, the stroller frame 1 includes a rear wheel connector 13, the brake handle 3 is rotatably disposed on the rear wheel connector 13, and the brake pin is fixedly disposed on the brake handle 3 or is engaged with the brake handle 3.

The stroller further comprises a driving mechanism, and the driving mechanism can enable the brake mechanism to brake from the brake state or brake from the brake state.

Specifically, as shown in fig. 2 to 6, the driving mechanism includes a driving member 41 movably disposed in the push rod assembly 12, the push handle 11 is engaged with the driving member 41, and the driving member 41 is connected to the brake handle 3 through a flexible connecting member 42. In this embodiment, the driving member 41 is rotatably disposed within the push rod assembly 12 via the second shaft 62, and the flexible coupling member 42 is a pull cable.

When the push handle 11 is not held by a human hand, the push handle 11 is far away from the push rod 121, and the brake mechanism is in a brake state; when a hand holds the push handle 11 to push the stroller, the push handle 11 rotates in a direction approaching the push rod 121, the driving member 41 is driven to rotate relative to the push rod assembly 12 through the matching between the push handle 11 and the driving member 41, the flexible connecting member 42 is stretched in the first direction, and the brake mechanism is pulled by the flexible connecting member 42 to be released from the braking state and be in a releasing state.

In this embodiment, the push rod assembly 12 further includes a fixing seat 122 fixedly disposed on the push rod 121, the fixing seat 122 has a hollow cavity, and the driving member 41 is rotatably disposed in the hollow cavity of the fixing seat 122 through the second shaft 62.

The handle 11 is fixedly provided with a first gear 111, the driving member 41 is fixedly provided with a second gear 411, and the first gear 111 is meshed with the second gear 411. When the user holds the handle 11 to push the stroller, the handle 11 rotates, and the driving member 41 is driven to rotate relative to the fixing base 122 by the cooperation of the first gear 111 and the second gear 411. In this embodiment, the first gear 111 has partial gear teeth along the circumferential direction of its rotation, the second gear 411 has gear teeth along the entire circumferential direction of its rotation, and the axle of the second gear 411 is disposed coaxially with the second axle 62.

The driving member 41 is fixedly provided with a connecting portion 412, one end portion of the flexible connecting member 42 is fixedly connected to the connecting portion 412, and the other end portion of the flexible connecting member 42 is fixedly provided on the brake lever 3. In the driver 41, the connecting portion 412 is located at an upper portion of the driver 41, and the second shaft 62 and the second gear 411 are located at a lower portion of the driver 41.

The pitch circle diameter of the first gear 111 is larger than that of the second gear 411, and the distance between the second shaft 62 and the connecting portion 412 is at least larger than the pitch circle radius of the first gear 111, and in the present embodiment, the distance between the second shaft 62 and the connecting portion 412 is larger than the sum of the pitch circle radius of the first gear 11 and the pitch circle radius of the second gear 411.

Thus, when the driving member 41 rotates a relatively small angle relative to the fixing seat 122, the flexible connecting member 42 can generate a large stroke, so that the brake mechanism can be released more easily.

The drive mechanism further comprises a guide structure for guiding the flexible connecting element 42 in the push rod assembly 12, the guide structure comprises a guide element 7 rotatably arranged in the hollow cavity of the fixed seat 122, and the flexible connecting element 42 is wound through the guide element 7. Thus, in the braking or braking releasing process, the flexible connecting piece 42 is in rolling contact with the guide piece 7, so that the friction resistance between the flexible connecting piece 42 and the guide piece 7 can be reduced, the service life of the flexible connecting piece 42 is prolonged, and the braking and braking releasing operations of the braking mechanism are easier. The guide 7 may employ a rotating pin or a rotating roller.

The actuating mechanism further comprises a first resilient member 51 for urging the brake mechanism from the released condition to the braking condition, the two ends of the first resilient member 51 being disposed on the brake pin and the rear wheel connector 13 respectively. When a person holds the push handle 11 and the push handle 11 rotates relative to the push rod assembly 12, the driving member 41 is driven to rotate relative to the push rod assembly 12, the brake handle 3 is pulled to rotate through the traction cable, so that the brake pin is driven to move to release the brake of the brake mechanism, and in the process, the first elastic member 51 is compressed; when the push handle 11 is released by a human hand, the elastic force of the first elastic member 51 drives the brake pin to drive the brake handle 3 to rotate reversely, the flexible connecting member 42 is stretched in a second direction opposite to the first direction, the driving member 41 is pulled to rotate reversely relative to the push rod assembly 12 through the flexible connecting member 42, and the push handle 11 is driven to rotate reversely to reset through the cooperation of the first gear 111 and the second gear 411.

The driving mechanism further comprises a second elastic member 52 for driving the push handle 11 to rotate reversely and return, and two end portions of the second elastic member 52 are respectively arranged on the push handle 11 and the push rod 121.

By providing the first elastic member 51 and the second elastic member 52 at the same time, the brake mechanism can be more quickly restored from the released state to the braking state.

In this embodiment, the first elastic member 51 and the second elastic member 52 are both springs.

The side of the push handle 11 facing the push rod 121 is provided with a containing groove matched with the push rod 121. When the push handle 11 is held to enable the push handle 11 and the push rod 121 to be close to each other, the push rod 121 is accommodated in the accommodating groove of the push handle 11; when the handle 11 is not held, the push rod 121 is released from the accommodation groove.

The working principle of the baby stroller is as follows:

when the push handle 11 of the stroller is not held by hands, the brake mechanism is in a brake state to prevent the stroller from advancing, so that the accident that the stroller is out of control is avoided, and the safety performance of the stroller in use is improved. In this condition, the brake pin engages the brake disc and the push handle 11 is moved away from the push rod 121, as shown in figures 2 and 3.

When a user holds the push handle 11 to push the stroller, the push handle 11 rotates relative to the push rod assembly 12 in a direction close to the push rod 121, the driving member 41 is driven to rotate relative to the fixing seat 122 through the cooperation of the first gear 111 and the second gear 411, in this process, the pull cable pulls the brake handle 3 to rotate relative to the stroller frame 1, the brake handle 3 drives the brake pin to move until the engagement between the brake handle and the brake disc is released, and the brake mechanism is in an unlocking state, as shown in fig. 4 and 5. In the braking-released state, the push rod 121 is accommodated in the accommodating groove of the push handle 11. During the braking of the brake mechanism, both the first elastic member 51 and the second elastic member 52 are compressed.

When the hand releases the push handle 11, the push handle 11 rotates upwards relative to the push rod assembly 12 under the action of the elastic force of the second elastic element 52, and the push rod 121 gradually comes out of the accommodating groove; in the process, under the action of the elastic force of the first elastic element 51, the brake pin moves towards the direction matched with the brake disc and drives the brake handle 3 to rotate reversely relative to the stroller frame 1, so that the traction cable pulls the driving element 41 to rotate reversely, the push handle 11 is driven to rotate reversely through the matching of the first gear 111 and the second gear 411 until the brake pin is matched with the brake disc again, and the push handle 11 rotates reversely and returns to the initial state.

Example 2

In this embodiment, as shown in fig. 7 to 11, the pushing handle 11 is movably connected to the driving member 41. Specifically, the handle 11 and the driving member 41 are rotatably connected through a third shaft 63, the third shaft 63 is fixedly disposed on the handle 11, and the third shaft 63 is slidably disposed relative to the driving member 41, or the third shaft 63 is fixedly disposed on the driving member 41, and the third shaft 63 is slidably disposed relative to the handle 11.

In this embodiment, the third shaft 63 is fixedly disposed on the pushing handle 11, the driving member 41 is provided with a sliding slot 413 extending in the vertical direction, and the third shaft 63 is disposed in the sliding slot 413 and slidably disposed along the length extending direction of the sliding slot 413.

In this embodiment, the connecting portion 412 for connecting the traction cable and the second shaft 62 are respectively located on the driving member 41 at two opposite sides of the driving member 41, in this embodiment, the connecting portion 412 is located at the upper portion of the driving member 41, and the second shaft 62 is located at the lower portion of the driving member 41.

The connecting portion 412 and the sliding groove 413 are located on opposite sides of the second shaft 62, and the third shaft 63 is located below the second shaft 62. The distance between the connecting portion 42 and the second shaft 62 is greater than the distance between the third shaft 63 and the second shaft 62.

Thus, when the driving member 41 rotates a relatively small angle relative to the fixed seat 122, the flexible connecting member 42 can also generate a large stroke, so that the brake mechanism can be released more easily.

The rest is the same as in example 1.

When a user holds the push handle 11 to push the stroller, the push handle 11 rotates relative to the push rod assembly 12 in a direction close to the push rod 121, the drive member 41 is driven to rotate relative to the fixed seat 122 when the push handle 11 rotates, in the process, the pull cable pulls the brake handle 3 to rotate relative to the stroller frame 1, the brake handle 3 drives the brake pin to move until the brake pin is disengaged from the brake disc, and the brake mechanism is in an unlocking state, as shown in fig. 9 and 10. In the braking-released state, the push rod 121 is accommodated in the accommodating groove of the push handle 11. During the braking of the brake mechanism, both the first elastic member 51 and the second elastic member 52 are compressed.

When the hand releases the push handle 11, the push handle 11 rotates upwards relative to the push rod assembly 12 under the action of the elastic force of the second elastic element 52, and the push rod 121 gradually comes out of the accommodating groove; in the process, under the action of the elastic force of the first elastic member 51, the brake pin moves towards the direction matched with the brake disc and drives the brake handle 3 to rotate reversely relative to the stroller frame 1, so that the traction cable pulls the driving member 41 to rotate reversely, the push handle 11 is driven to rotate reversely and reset, until the brake pin is matched with the brake disc again, namely, the brake mechanism is in a braking state, and the push handle 11 rotates reversely and resets to an initial state, as shown in fig. 7 and 8.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to 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 within the protection scope of the present invention.

Claims

1. The utility model provides a children's shallow, is in including shallow frame, setting the wheel subassembly and the setting of shallow frame bottom are in brake mechanism on the wheel subassembly, the shallow frame includes push rod subassembly and is advancing the pushing handle that is used for the people hand to grip during the children's shallow, brake mechanism has brake and the state of deblocking, brake mechanism is including the brake pin subassembly that the activity set up, its characterized in that: push away the handle with push rod assembly rotates mutually to be connected, children's shallow is still including being used for ordering about brake mechanism is in the brake state and the actuating mechanism who solves the interconversion between the state of stopping, actuating mechanism sets up including the activity push rod assembly go up and with push away the driving piece and the flexonics spare that cooperate or swing joint, flexonics spare's both ends respectively with brake round pin subassembly with the driving piece is connected, holds as the staff push away the handle makes it rotates the drive to push away the handle the driving piece is relative during the motion of push rod assembly, flexonics spare is stretched to make along first direction brake mechanism unlocks.

2. The stroller of claim 1, wherein: the driving piece can be rotatably arranged on the push rod assembly.

3. The stroller of claim 2, wherein: the push handle is fixedly provided with a first gear, the driving piece is fixedly provided with a second gear, and the first gear is meshed with the second gear.

4. The stroller of claim 3, wherein: the driving part is provided with a connecting part, the flexible connecting piece is located at the connecting part of the driving part, the driving part is located on the connecting part, the rotating shaft connected with the push rod assembly in a rotating mode and the connecting part are located on two opposite sides of the driving part respectively, and the diameter of the reference circle of the first gear is larger than that of the second gear.

5. The stroller of claim 2, wherein: the push handle is rotatably connected with the driving piece, and a rotating shaft which is rotatably connected with the driving piece is fixedly arranged on one of the push handle and the driving piece and can be arranged in a sliding way relative to the other part.

6. The stroller of claim 5, wherein: be provided with connecting portion on the driving piece, flexible connection spare with the junction of driving piece is located on the connecting portion on the driving piece, the driving piece with push rod assembly rotates the pivot of connecting with connecting portion are located respectively the relative both sides of driving piece, the driving piece with push rod assembly rotates the pivot of connecting with distance between the connecting portion is greater than push away with the driving piece rotate the pivot of connecting the driving piece with push rod assembly rotates the distance between the pivot of connecting.

7. The stroller of claim 1, wherein: the driving mechanism further comprises a guide piece used for guiding the trend of the flexible connecting piece, the guide piece can be rotatably arranged in the push rod assembly, and the flexible connecting piece winds through the guide piece.

8. The stroller of claim 1, wherein: the driving mechanism further comprises a first elastic piece which is used for driving the brake mechanism to reset from the brake release state to the brake state when the push handle is released, two end parts of the first elastic piece are respectively arranged on the brake pin assembly and the cart frame, and when the push handle is released, the elastic force of the first elastic piece drives the flexible connecting piece to be stretched along a second direction opposite to the first direction so that the push handle rotates and resets relative to the push rod assembly.

9. Child stroller according to claim 1 or 8, characterized in that: the driving mechanism further comprises a second elastic piece for driving the push handle to reset when the push handle is released, and two end parts of the second elastic piece are respectively arranged on the push handle and the push rod assembly.

10. The stroller of claim 1, wherein: the push rod assembly comprises a push rod which is obliquely extended from the front to the back upwards to a position below the push handle, when the child stroller is pushed, the push handle rotates downwards to be close to the push rod, and when the push handle is loosened, the push handle rotates upwards to be far away from the push rod.