CN112078651A - Wheel rotation orientation mechanism and baby carriage - Google Patents

Abstract

The invention discloses a wheel rotation orientation mechanism, which locks a pair of wheel seats rotatably arranged on a vehicle foot of a vehicle frame, and comprises a sliding part and a pair of orientation components connected with the sliding part, wherein the orientation components comprise a first traction part, an orientation part and a reset part, the wheel seats are provided with orientation parts, the sliding part is slidably arranged on the vehicle frame, one end of the first traction part is connected with the sliding part, the other end of the first traction part is connected with the orientation part, the orientation part is movably arranged on the vehicle foot and can be connected with the orientation part for positioning or separating, and the reset part provides an elastic force for matching the orientation part with the orientation part. The wheel rotating and orienting mechanism can lock or unlock a pair of rotatable rear wheels of the baby carriage at the same time, and has the advantages of improving the flexibility of the wheels and ensuring the use safety. In addition, the invention also discloses a baby carriage which is flexible in steering and convenient to use.

Description

Wheel Rotation Orientation Mechanism and Stroller

technical field

The invention relates to a baby carriage, in particular to a wheel rotation orientation mechanism.

Background technique

The existing baby carriages all have a pair of front wheels and a pair of rear wheels, the front wheels are swingably arranged, and the rear wheels are not swingable. When the stroller is moving forward, the front wheel swings at a certain angle to drive the entire frame to turn, while the rear wheel can only follow the direction of the frame by generating a speed difference between the two rear wheels. However, in certain situations, such as when reversing, it may be necessary to swivel the rear wheels to a certain angle to allow the stroller to be easily steered when reversing, and then to reposition the rear wheels for forward travel. However, the existing strollers do not have this function, which is inconvenient to use.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a wheel rotation orientation mechanism that can lock or release the rotatable rear wheel of the stroller, improve the flexibility of the wheel, and ensure the safety of use.

The purpose of the present invention is to provide a baby carriage with a rear wheel that can be locked or released, with flexible steering and convenient use.

In order to achieve the above object, the wheel rotation orientation mechanism provided by the present invention locks a pair of wheel seats rotatably arranged on the legs of the vehicle frame, and includes a slider and a pair of orientation components connected to the slider. The orientation components include The first traction member, the orientation member and the reset member, the wheel seat is provided with an orientation portion, the sliding member is slidably arranged on the frame, one end of the first traction member is connected with the sliding member, and the other end of the first traction member is connected with the orientation member The orientation piece can be movably arranged on the vehicle foot and can be connected with the orientation part to locate or separate; the reset piece provides an elastic force to make the orientation piece cooperate with the orientation part.

Compared with the prior art, in the present invention, the orientation member is movably arranged on the foot of the vehicle, and a certain orientation portion is arranged on the wheel seat, and the orientation member and the sliding member are connected by a first traction member, so that the sliding member can be slid by the sliding member. Drive the first traction member, and then pull the directional member through the first traction member to realize the separation of the directional member and the directional part, and drive the directional member through a reset member, so that the directional member is connected and matched with the directional part, so that the stroller can be rotatable. to unlock or lock the rear wheel. When the rear wheel is unlocked, the rear wheel can rotate and guide the stroller to turn. When the rear wheel is locked, the stroller can move forward in a normal state, thus effectively improving the flexibility of the wheel and ensuring the convenience of the stroller. sex and safety.

Preferably, the orientation portion is a positioning hole, the orientation member is a positioning column, and the positioning column is telescopically arranged and can be inserted into or withdrawn from the positioning hole.

Preferably, the wheel rotation orientation mechanism further includes a second traction member, and the second traction member is connected with the sliding member to drive the sliding member to slide.

Specifically, the wheel rotation orientation mechanism further includes an operating member, and the operating member is connected with the second traction member. By arranging the second traction member and the operating member, the operating member can be led to the driver or the place close to the manual operation, so as to improve the convenience of operation.

Specifically, the operating member is provided on the rider of the frame.

Preferably, an accommodating cavity and a through hole communicating with the accommodating cavity are arranged in the vehicle foot, the positioning post is slidably arranged in the accommodating cavity and penetrates through the through hole, and the reset piece is arranged in the accommodating cavity and the two The ends are respectively abutted with the vehicle foot and the directional piece.

Preferably, the restoring member is a compression spring.

Specifically, the wheel rotation orientation mechanism further includes a slider, the slider is slidably arranged on the driver, and the slider is connected with the second traction member to pull the second traction member.

Specifically, the wheel rotation orientation mechanism further includes an operating member, the operating member is slidably disposed on the driver, and the operating member intersects the sliding direction of the slider to drive the slider to slide.

Specifically, at least one of the interacting ends of the slider and the operating member is provided with a driving slope for driving the slider.

Specifically, the wheel rotation orientation mechanism further includes a rotating member, the rotating member is rotatably disposed on the driver, and the rotating member is wound around the second traction member.

Specifically, the wheel rotation orientation mechanism further includes an operating member, and the operating member is fixedly connected to the side surface of the rotating member to drive the rotating member to rotate.

A stroller includes a frame, a front wheel, a front wheel seat, a pair of rear wheels, a pair of rear wheel seats and a wheel rotation orientation mechanism. The front wheel is arranged on the front wheel seat, and the front wheel seat is arranged on the front foot of the frame. The rear wheel is arranged on the rear wheel seat, and the rear wheel seat is arranged on the rear foot of the frame; the wheel rotation orientation mechanism is arranged on the frame and locks or releases the two rear wheel seats.

Description of drawings

FIG. 1 is a structural diagram of the stroller of the present invention.

FIG. 2 is a structural diagram of the sliding member of the stroller of the present invention being mounted on the frame.

FIG. 3 is a structural view of the orientation assembly of the stroller of the present invention mounted on the legs of the stroller.

FIG. 4 is a structural diagram of the operation member of the first embodiment of the stroller of the present invention installed on the rider.

FIG. 5 is a structural diagram of the wheel rotation orientation mechanism according to the first embodiment of the present invention.

FIG. 6 is a partial cross-sectional view of the operation member of the second embodiment of the stroller of the present invention installed on the rider.

FIG. 7 is a state diagram of the operation member of the second embodiment of the stroller of the present invention after being pressed.

FIG. 8 is a partial cross-sectional view of the operation member of the third embodiment of the stroller of the present invention installed on the rider.

FIG. 9 is a state diagram of the operation member of the stroller according to the third embodiment of the present invention after being pressed.

Detailed ways

In order to describe in detail the technical content, structural features, and achieved effects of the present invention, detailed descriptions are given below with reference to the embodiments and the accompanying drawings.

As shown in FIG. 1 to FIG. 5 , the drawings show the structure of the first embodiment of the present invention. The stroller 100 of the present invention includes a frame 1, a pair of front wheels 2, a pair of front wheel seats 3, a pair of rear wheels 4, a pair of rear wheel seats 5, and a wheel rotation orientation mechanism 6. The frame 1 includes a driver 11, The front foot 12 and the rear foot 13, the front wheel 2 is arranged on the front wheel seat 3, the front wheel seat 3 is rotatably arranged on the front foot 12, the rear wheel 4 is arranged on the rear wheel seat 5, and the rear wheel seat 5 is rotatable through the central axis 51. It is arranged on the rear foot 13 so that the rear wheel seat 5 can drive the rear wheel 4 to rotate and swing around the central axis 51;

Specifically, as shown in FIG. 5 , the wheel rotation orientation mechanism 6 includes an operating member 61 , a second traction member 62 , a sliding member 63 and a pair of directional components 64 connected to the sliding member 63 ; the directional components 64 are one by one. Corresponding to the rear wheel base 5 , that is, an orientation assembly 64 is used to orient a rear wheel base 5 ; the orientation assembly 64 includes a first traction member 641 , an orientation member and a reset member 643 . The rear wheel seat 5 is provided with an orientation portion, specifically a positioning hole 52, and the orientation member is a positioning column 642 that is inserted and matched with the orientation hole; the sliding member 63 is slidably arranged in the frame 1, and the sliding member 63 can be arranged on the driver 11. The position close to the rear foot 13 can also be arranged in the rear foot 13 . One end of the first traction member 641 is connected with the sliding member 63, and the other end of the first traction member 641 is connected with the orientation member. The orientation member can be movably arranged in the rear foot 4 and can be connected, positioned or separated from the orientation portion. The reset member 643 provides An elastic force that makes the orientation member cooperate with the orientation portion. More specifically, the rear leg 4 is provided with a accommodating cavity 41 and a through hole 42 communicating with the accommodating cavity 41, and the positioning column 642 is slidably disposed in the accommodating cavity 41 and penetrates the rear leg 13 through the through hole 42, so that The positioning post 642 is telescopically disposed relative to the rear foot, so that it can be inserted into or withdrawn from the positioning hole 52 . More specifically, the diameter of the upper section of the positioning post 642 is larger than that of the lower section, and the inner diameter of the accommodating cavity 41 is larger than the inner diameter of the through hole 42 , so that the positioning post 642 will not come out of the through hole 42 . The reset member 643 is disposed in the accommodating cavity 41 and has two ends abutting against the rear leg 13 and the positioning post 642 respectively. The restoring member 643 is a compression spring. The reset member 643 can provide an elastic force for inserting the positioning post 642 into the positioning hole 52 . The operating member 61 is connected to one end of the second pulling member 62 . The operating member 61 is slidably provided on the rider 11 of the vehicle frame 1 . The other end of the second pulling member 62 is connected with the sliding member 63 to drive the sliding member 63 to slide. By arranging the second traction member 62 and the operating member 61, the operating member 61 can be led to the driver 11 or a place close to the manual operation, so as to improve the convenience of operation. The first traction member 641 and the second traction member 62 of the present invention are both steel wires.

In view of the above and shown in FIG. 5 , the working principle of the wheel rotation orientation mechanism 6 of the present invention is described below, as follows:

When the baby carriage 100 needs the rear wheel 4 to swing and turn, manually pull the operating member 61 to make the operating member 61 slide on the rider 11, the operating member 61 pulls the second traction member 62, and the second traction member 62 pulls the sliding member 63, so that the The sliding member 63 slides relative to the frame 1 , thereby simultaneously driving the two first traction members 641 . The two first traction members 641 pull the respectively connected positioning posts 642 , so that the two positioning posts 642 retract into the rear foot while compressing their respective compression springs. At this time, the two positioning posts 642 are withdrawn from the corresponding positioning holes 52 of the rear wheel base 5 , thereby releasing the locking of the rear wheel base 5 , and the rear wheel base 5 can swing around the central axis 51 . At this time, when the stroller 100 needs to reverse and turn, the rear wheel seat 5 can be swung to realize flexible steering. When the stroller 100 runs normally, the rear wheel 4 needs to be in a straightened state, and only the operating member 61 needs to be released. Under the elastic force of the compression spring, the positioning column 642 is inserted into the positioning hole 52, and the first traction member 641 is pulled at the same time. The sliding member 63 is reset, and the second traction member 62 pulls the operating member 61 to reset. At this time, the rear wheel seat 5 can be in a straightened and fixed state, and the stroller 100 can normally travel forward.

Compared with the prior art, in the present invention, the orientation member is movably arranged on the foot of the vehicle, and a certain orientation portion is arranged on the wheel seat, and the orientation member and the sliding member 63 are connected by a first traction member 641, so that the sliding member can pass through the sliding member. The sliding of 63 drives the first traction member 641, and then pulls the orientation member through the first traction member 641 to realize the separation of the orientation member from the orientation portion, and drives the orientation member through a reset member 643, so that the orientation member and the orientation portion are connected and matched, so that the It realizes the unlocking or locking of the rotatable rear wheel 4 of the stroller 100 . When the rear wheel 4 is unlocked, the rear wheel 4 can rotate and guide the stroller 100 to turn. When the rear wheel 4 is locked, the stroller 100 can move forward in a normal state, thus effectively improving the flexibility of the wheel and ensuring Convenience and safety of use of the stroller 100 .

Please refer to FIG. 6 , which shows the structure of the second embodiment of the present invention. The structure of the stroller of the present invention is basically the same as the structure of the first embodiment, the difference lies in the wheel rotation orientation mechanism. In the wheel rotation orientation mechanism, the first The structures of the two pulling members 62 , the sliding member 63 and the orientation assembly 64 are also the same, and the difference lies in how to drive the second pulling member 62 . In addition to the second traction member 62 , the sliding member 63 and the orientation assembly 64 , the wheel rotation orientation mechanism of this embodiment also includes a sliding block 65 and an operating member 61 ′. The two pulling members 62 are connected to pull the second pulling member 62 . The operating member 61' is slidably disposed on the rider 11, and the operating member 61' intersects the sliding direction of the slider 65. The best way is that the operating member 61' is perpendicular to the sliding direction of the slider 65 to drive the slider 65 to slide. Both the sliding block 65 and the interacting end of the operating member 61' are provided with driving slopes 651, 611' for driving the sliding block 65 to drive.

With reference to FIG. 7 , when the baby carriage needs the rear wheel 4 to swing and turn, manually press the operating member 61 ′ in the direction indicated by the arrow in the figure, so that the operating member 61 ′ slides inward on the rider 11 , and the operating member 61 ′ slides inward. The driving slope of the slider 65 is in sliding contact with the driving slope of the slider 65, so that the slider 65 slides, the slider 65 can pull the second traction member 62, and the second traction member 62 can drive the sliding member 63 to move. Afterwards, the working principle of the sliding member 63 driving the orientation assembly 64 is the same as that of the first embodiment, and the description is not repeated here. When the stroller runs normally, the rear wheel 4 needs to be in a straightened state, and only the operating member 61' needs to be released. The operating member 61' is reset under the elastic force of the compression spring, and the positioning column 642 is also reset at the same time (see the embodiment for details). 1), at this time, the rear wheel seat 5 can be in a straightened and fixed state, and the stroller can be driven forward normally.

Please refer to FIG. 8 , which shows the structure of the third embodiment of the present invention. The structure of the baby carriage of the present invention is basically the same as the structure of the first embodiment. The difference lies in the wheel rotation orientation mechanism. In the wheel rotation orientation mechanism, the first The structures of the two pulling members 62 , the sliding member 63 and the orientation assembly 64 are also the same, and the difference lies in how to drive the second pulling member 62 . In addition to the second traction member 62 , the sliding member 63 and the orientation assembly 64 , the wheel rotation orientation mechanism of this embodiment also includes a rotating member 66 and an operating member 61 ″. The rotating member 66 is rotatably arranged on the driver 11 , and the rotating member 66 is rolled Around the second traction member 62. The operating member 61" is fixedly connected to the side surface of the rotating member 66 to drive the rotating member 66 to rotate.

As shown in FIG. 9 , when the baby carriage needs the rear wheel 4 to swing and turn, manually press the operating member 61 ″ upwards in the direction indicated by the arrow in the figure, so that the operating member 61 ″ drives the rotating member 66 to rotate, and the rotating member 66 rotates the roll Around the second traction member 62, the second traction member 62 can be pulled at this time, and the second traction member 62 can drive the sliding member 63 to move. Afterwards, the working principle of the sliding member 63 driving the orientation assembly 64 is the same as that of the first embodiment, and the description is not repeated here. When the stroller is running normally, the rear wheel 4 needs to be in a straightened state, and only the operating member 61" needs to be released. The operating member 61" and the rotating member 66 are reset under the elastic force of the compression spring, and the positioning column 642 is also reset at the same time ( Please refer to Embodiment 1 for details. At this time, the rear wheel seat 5 can be in a straightened and fixed state, and the stroller can run forward normally.

The above disclosures are only preferred examples of the present invention, and of course, the scope of the rights of the present invention cannot be limited by this. Therefore, equivalent changes made according to the scope of the patent application of the present invention still belong to the scope covered by the present invention.

Claims (13)

1. A wheel rotation orientation mechanism for locking a pair of wheel seats rotatably arranged on the legs of a vehicle frame, characterized in that it comprises a slider and a pair of orientation components connected with the slider, the The orientation assembly includes a first traction member, an orientation member and a reset member, the wheel seat is provided with an orientation portion, the sliding member is slidably arranged on the frame, and one end of the first traction member is connected to the sliding member connection, the other end of the first traction member is connected with the orientation member, the orientation member can be movably arranged on the vehicle foot and can be connected, positioned or separated from the orientation portion, and the reset member provides a The elastic force that the orienting member cooperates with the orienting portion. 2 . The wheel rotation orientation mechanism according to claim 1 , wherein the orientation part is a positioning hole, the orientation member is a positioning column, and the positioning column is telescopically arranged and can be inserted into or withdrawn from the positioning. 3 . hole. 3 . The wheel rotation orientation mechanism according to claim 1 , wherein the wheel rotation orientation mechanism further comprises a second traction member, and the second traction member is connected with the sliding member to drive the sliding member. 4 . slide. 4 . The wheel rotation orientation mechanism according to claim 3 , wherein the wheel rotation orientation mechanism further comprises an operating member, and the operating member is connected with the second traction member. 5 . 5 . The wheel rotation orientation mechanism according to claim 4 , wherein the operating member is arranged on the rider of the frame. 6 . 6 . The wheel rotation orienting mechanism according to claim 2 , wherein an accommodating cavity and a through hole communicating with the accommodating cavity are provided in the vehicle leg, and the positioning column is slidably arranged on the accommodating cavity. 7 . The accommodating cavity is penetrated through the through hole, the reset piece is disposed in the accommodating cavity, and the two ends are respectively abutted against the vehicle foot and the orientation piece. 7. The wheel rotation orientation mechanism according to any one of claims 1 to 6, wherein the reset member is a compression spring. 8 . The wheel rotation orientation mechanism according to claim 3 , wherein the wheel rotation orientation mechanism further comprises a slider, the slider is slidably arranged on the driver, and the slider is connected to the second wheel. 9 . The traction member is connected to pull the second traction member. 9 . The wheel rotation orientation mechanism according to claim 8 , wherein the wheel rotation orientation mechanism further comprises an operating member, the operating member is slidably arranged on the driver, and the operating member is connected to the sliding member. 10 . The sliding directions of the blocks intersect to drive the sliding blocks to slide. 10 . The wheel rotation orientation mechanism of claim 9 , wherein at least one of the interacting ends of the sliding block and the operating member is provided with a driving slope for driving the sliding block. 11 . 11 . The wheel rotation orientation mechanism according to claim 3 , wherein the wheel rotation orientation mechanism further comprises a rotating member, the rotating member is rotatably disposed on the driver, and the rotating member is wound around the The second traction member. 12 . The wheel rotation orientation mechanism according to claim 11 , wherein the wheel rotation orientation mechanism further comprises an operating member, and the operating member is fixedly connected to the side surface of the rotating member to drive the rotating member to rotate. 13 . . 13. A stroller, characterized in that it comprises a frame, a front wheel, a front wheel seat, a pair of rear wheels, a pair of rear wheel seats, and the wheel rotation orientation mechanism according to any one of claims 1 to 12, wherein The front wheel is arranged on the front wheel seat, the front wheel seat is arranged on the front foot of the frame, the rear wheel is arranged on the rear wheel seat, and the rear wheel seat is arranged on the frame The rear foot of the wheel; the wheel rotation orientation mechanism is arranged on the frame and locks or unlocks the two rear wheel seats.

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