CN213974154U

CN213974154U - Wheel independent brake mechanism

Info

Publication number: CN213974154U
Application number: CN202022391411.1U
Authority: CN
Inventors: 刘建华; 樊彦文; 程群
Original assignee: Ningbo Mybaby Baby Products Manufacturing Co Ltd
Current assignee: Ningbo Mybaby Baby Products Manufacturing Co Ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-08-17
Anticipated expiration: 2030-10-26

Abstract

The utility model discloses a wheel individual braking mechanism, which comprises a wheel seat, a wheel, a braking gear, a braking pedal, a braking slider and the like, wherein the braking pedal is arranged in the wheel seat above the wheel, the braking slider is arranged at one side of the wheel, the braking pedal is also provided with an operating end which is positioned by pulling upwards or positioned by pulling downwards, and the upper end of the braking slider is connected on the braking pedal; therefore, when the brake device is used, the lower end of the brake sliding block can be driven to be separated from the brake gear to unlock only by pulling the operating end upwards, or the lower end of the brake sliding block can enter the brake gear to be locked only by pulling the operating end downwards for positioning. Because the brake pedal is directly arranged above the wheels instead of being transversely arranged on the side surfaces of the wheels, the brake pedal does not occupy the transverse space after the baby carriage is folded, thereby reducing the folding size of the baby carriage. The improved brake mechanism also has the advantages of simple and attractive appearance, simple assembly and processing, lower cost control, compact size control of the whole assembly and the like.

Description

Wheel independent brake mechanism

Technical Field

The utility model relates to a brake mechanism for perambulator wheel specifically indicates a wheel independent brake mechanism.

Background

When the baby carriage is used, at least the rear wheel is required to have a brake function, so that the requirement on use safety can be met. Simultaneously, some perambulator are according to special requirement, still require three wheels or four wheels in front and back all to have solitary brake function, and the wheel that has solitary brake function in the existing market all has certain drawback, and it often can be with brake parts design such as brake pedal in the wheel side, and it is too big to lead to the horizontal shared space of wheel, after the perambulator is folding, because the needs of avoiding front and back wheel brake pedal each other, can widen the horizontal width of wheel, and then influence the size after the perambulator is folded.

Disclosure of Invention

The utility model aims to solve the technical problem that overcome prior art's defect and provide one kind and can not occupy horizontal space at the folding back brake pedal of perambulator, reduce the wheel independent brake mechanism of the folding size of perambulator.

The technical problem of the utility model is realized through following technical scheme:

the utility model provides a wheel individual brake mechanism, includes wheel seat and the wheel of roll installation in the wheel seat, this wheel one side is equipped with the brake gear with axle center fixed mounting, the wheel seat in still be equipped with the brake pedal that is located the wheel top and be located the brake slider of wheel one side, this brake pedal has the operating end of upwards pulling the location or pulling the location downwards, this brake slider upper end is connected on brake pedal, the brake slider lower extreme receives the upwards pulling location of operating end and breaks away from brake gear unblock or pulls the location downwards and get into the brake gear locking.

The brake pedal is an arched arc plate, the brake pedal is horizontally arranged above the wheels, the front end of the brake pedal is hinged in the wheel seat to form rotation, and the rear end of the brake pedal extends out of the wheel seat to be exposed and suspended to form an operating end.

The upper end of the brake sliding block is movably assembled in a driving groove on the side surface of the brake pedal through a driving shaft on the side surface, the operating end of the brake pedal is pulled upwards for positioning, the driving shaft correspondingly slides towards the rear end of the driving groove and drives the lower end of the brake sliding block to be separated from the brake gear for unlocking, or the operating end of the brake pedal is pulled downwards for positioning, the driving shaft correspondingly slides towards the front end of the driving groove, and the lower end of the brake sliding block synchronously enters the brake gear for locking.

The upper end of the brake sliding block is provided with a buffer spring which elastically pushes the brake sliding block downwards, the operating end of the brake pedal is pulled downwards for positioning, the buffer spring pushes the brake sliding block to move downwards and drives the driving shaft to slide towards the front end of the driving groove and the lower end of the brake sliding block to enter the brake gear for locking.

The wheel seat is provided with an upper positioning groove and a lower positioning groove, a positioning protrusion is correspondingly arranged on the brake pedal, the operating end of the brake pedal is pulled upwards, and the positioning protrusion enters the upper positioning groove for positioning; the operating end of the brake pedal is pulled downwards, and the positioning protrusion enters the lower positioning groove to be positioned.

An excessive slope is arranged between the lower positioning groove and the upper positioning groove, the lower part of the excessive slope extends into the lower positioning groove, the higher part of the excessive slope extends into the upper positioning groove, and the positioning protrusion enters the upper positioning groove from the lower positioning groove along the excessive slope.

The wheel seat is a fork-shaped wheel seat with a downward opening, and the wheel is arranged between two fork arms of the wheel seat in a rolling manner through a wheel shaft; the fork arm is provided with a guide groove for the brake sliding block to slide up and down, and the axis of the guide groove is perpendicular to the rotating axis of the wheel.

The two fork arms are respectively provided with brake sliding blocks with the same structure, and the brake pedal drives the brake sliding blocks on the two fork arms to be synchronously unlocked or locked.

And decorative covers are arranged on the outer side surfaces of the fork arms.

The lower end of the brake sliding block is provided with a T-shaped brake block which is provided with a locking brake gear.

Compared with the prior art, the utility model mainly arranges the brake pedal in the wheel seat above the wheel, the brake slide block is arranged at one side of the wheel, the brake pedal is also provided with an operating end which can be pulled upwards for positioning or pulled downwards for positioning, and the upper end of the brake slide block is connected on the brake pedal; therefore, when the brake device is used, the lower end of the brake sliding block can be driven to be separated from the brake gear to unlock only by pulling the operating end upwards, or the lower end of the brake sliding block can enter the brake gear to be locked only by pulling the operating end downwards for positioning. Because the brake pedal is directly arranged above the wheels instead of being transversely arranged on the side surfaces of the wheels, the brake pedal does not occupy the transverse space when the baby carriage is folded, thereby reducing the folding size of the baby carriage. The improved brake mechanism also has the advantages of simple and attractive appearance, simple assembly and processing, lower cost control, compact size control of the whole assembly and the like.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded perspective view of fig. 1.

Fig. 3 is a schematic structural diagram of the brake mechanism in a non-braking state.

Fig. 4 is a sectional view a-a of fig. 3.

Fig. 5 is a sectional view taken along line B-B of fig. 3.

Fig. 6 is a perspective view of fig. 3.

Fig. 7 is a schematic structural diagram of the brake mechanism in a braking state.

Fig. 8 is a cross-sectional view taken along line C-C of fig. 7.

Fig. 9 is a cross-sectional view taken along line D-D of fig. 7.

Fig. 10 is a perspective view of fig. 7.

Fig. 11 is a schematic view of the partial cross-sectional structure of the present invention.

Fig. 12 is a schematic structural view of the wheel seat.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the drawings.

As shown in fig. 1 to 12, the brake device comprises a wheel seat 1, a fork arm 11, a guide groove 12, an upper positioning groove 13, a lower positioning groove 14, an excessive slope 15, a wheel 2, a wheel shaft 21, a brake gear 3, a brake pedal 4, a driving groove 41, a positioning protrusion 42, a brake slider 5, a driving shaft 51, a T-shaped brake block 52, a buffer spring 6, a hinge shaft 7 and a decorative cover 8.

A wheel independent brake mechanism is shown in figures 1-10 and relates to a brake mechanism for independent braking of wheels on a baby carriage, which is mainly structurally composed of a wheel seat 1, wheels 2, a brake gear 3, a brake pedal 4, a brake slider 5 and the like.

The wheel seat 1 is a fork-type wheel seat with a downward opening, so that the wheel seat 1 is provided with a pair of fork arms 11 extending downwards in parallel as shown in fig. 12; the wheel 2 is arranged between two fork arms 11 of the wheel seat through a wheel shaft 21 in a rolling way, and one side of the wheel 2 is also provided with a brake gear 3 which is fixedly arranged coaxially.

A brake pedal 4 and a brake sliding block 5 are arranged in the wheel seat 1; the brake pedal 4 is an arched arc plate, and is directly horizontally arranged above the wheel 2, the front end of the brake pedal 4 is respectively hinged on two fork arms 11 of the wheel seat 1 through a hinge shaft 7, so that rotation is formed in the wheel seat 1, and the rear end of the brake pedal 4 extends out of the wheel seat 1 and is exposed and suspended to form an operation end.

Simultaneously, this operation end can also pull the location upwards or pull the location downwards, and concrete structure is: the wheel seat 1 is provided with an upper positioning groove 13 and a lower positioning groove 14, and correspondingly, the side surface of the adjacent brake pedal 4 is provided with a positioning protrusion 42; when the operating end of the brake pedal 4 is pulled upwards, the positioning protrusion 42 enters the upper positioning groove 13 for positioning; when the operating end of the brake pedal 4 is pulled downward, the positioning projection 42 is positioned into the lower positioning groove 14.

The operation end pull-up positioning in the present embodiment represents an unlocking operation of the wheel 2, and the operation end pull-down positioning represents a locking operation of the wheel 2.

Of course, in order to ensure the accuracy and stability of the positioning of the upper and lower pulling of the brake pedal 4, the two sides of the brake pedal 4 are usually provided with a positioning protrusion 42 and corresponding upper and lower positioning grooves, respectively.

An excessive slope 15 is needed to be arranged between the lower positioning groove 14 and the upper positioning groove 13, the lower part of the excessive slope extends into the lower positioning groove 14, and the higher part of the excessive slope extends into the upper positioning groove 13; thus, when the positioning protrusion 42 enters the upper positioning groove 13 from the lower positioning groove 14 along the transition slope 15, the labor is saved, that is, the locking state of the wheel is changed into the unlocking state of the wheel.

The two brake sliding blocks 5 have the same structure, the two brake sliding blocks 5 are respectively arranged on two sides of the wheel 2, and the upper end of each brake sliding block 5 is connected to the brake pedal 4, so that the two brake sliding blocks 5 can be driven by the brake pedal to synchronously move, and since the structural design and the action process of the two brake sliding blocks 5 are completely the same, the embodiment only takes one brake sliding block 5 as an example for detailed description.

The upper end of the brake sliding block 5 is movably assembled in a driving groove 41 on the side surface of the brake pedal 4 through a driving shaft 51 on the side surface, the upper end of the brake sliding block 5 is provided with a buffer spring 6 which is elastically pushed downwards, and the lower end of the brake sliding block 5 is provided with a T-shaped brake block 52 which is assembled with a locking brake gear 3.

Therefore, when the operating end of the brake pedal 4 is pulled upwards as shown in fig. 3 to 6, the positioning protrusion 42 can be driven to enter the upper positioning groove 13 from the transition slope 15 for positioning, at this time, the whole brake slider 5 is synchronously driven by the brake pedal 4 to ascend to compress the buffer spring 6, and the driving shaft 51 correspondingly slides towards the rear end of the driving groove 41, that is, the driving shaft 51 is far away from the rolling axis of the wheel 2 when viewed from the spatial position, so that the T-shaped brake block 52 at the lower end of the brake slider 5 is driven to simultaneously separate from the brake gear 3 for unlocking, and the whole wheel 2 can freely roll and is in a non-braking state.

When the operating end of the brake pedal 4 is pulled downwards as shown in fig. 7-10, the positioning protrusion 42 can be driven to enter the lower positioning groove 14 from the excessive slope 15 for positioning, at this time, the power of the brake pedal 4 for the whole ascending driving force of the brake slider 5 disappears, the brake slider 5 will descend under the pushing of the compression force released by the buffer spring 6, and the driving shaft 51 correspondingly slides towards the front end of the driving groove 41, that is, the driving shaft 51 is close to the rolling axis of the wheel 2 from the spatial position and gives way to the descending distance of the brake slider 5, so that the T-shaped brake block 52 at the lower end of the brake slider 5 enters the brake gear 3 to be locked at the same time, and the whole wheel 2 cannot roll freely and is in the braking state.

In the braking action, the operation end of the brake pedal 4 is pulled up and down through the tiptoe, the tiptoe is stepped down to pull down the operation end, and the tiptoe is raised up to pull up the operation end. With the downward pulling of the operating end of the brake pedal 4, although the compression force of the buffer spring 6 is released to push the brake slider 5 downward, if the T-shaped brake block 52 at the lower end of the brake slider does not face the brake gear 3, that is, even if the buffer spring 6 releases the compression force to push the brake slider 5 downward, the T-shaped brake block 52 is difficult to enter due to the position deviation with the brake gear 3, and only needs to drive the wheel to slightly deflect along with the pushing of the baby carriage, and still can ensure that the T-shaped brake block 52 quickly enters the brake gear 3 to complete the locking under the downward pushing of the buffer spring 6. The advantage of designing this kind of structure is that the user only needs to pull the operation end location of brake pedal 4 downwards and accomplish the braking action, just need not to go to consider again whether T type brake block 52 of brake slider 5 lower extreme has accurately got into brake gear 3, has guaranteed that wheel 2 under the braking action only needs slightly to rotate and can both accomplish the brake when being in arbitrary angle, and the operation is more convenient and reliable.

In addition, the indirect connection structure between the driving shaft 51 and the driving groove 41 is also essential to ensure that the braking action of the brake pedal 4 can be completed at any time.

The brake gear is characterized in that guide grooves 12 for the brake sliding blocks 5 to slide up and down are formed in the fork arms 11, the axis lines of the guide grooves need to be perpendicular to the axis lines of the rotating shafts of the wheels 2, so that the descending brake sliding blocks 5 can accurately enter the T-shaped brake blocks 52 into the brake gear 3 along the guide grooves 12, the brake pedal 4 can drive the brake sliding blocks 5 on the two fork arms 11 to be unlocked or locked synchronously, and the outer side surface of each fork arm 11 is provided with a decorative cover 8 to achieve the effects of decoration and attractiveness.

In actual structure design, this brake mechanism also can be designed to unilateral brake structure, only design one brake slider 5 in wheel 2 one side promptly can, this brake mechanism also can be applied to the brake of double round side by side in addition, be about to the brake pedal set up in the top of double round side by side can, enlarged brake mechanism's application range.

The utility model discloses because with brake pedal 4 direct mount in 2 tops of wheel, rather than traditional transverse mounting in the wheel side, this brake pedal just can not occupy horizontal space after the perambulator is folding like this to reduce the folding size of perambulator, still have the succinct pleasing to the eye of appearance, assemble advantages such as processing is simple, cost control is lower, whole subassembly size control is compact.

The above description is only an embodiment of the present invention, and those skilled in the art should understand that any structural design similar to the embodiment is included in the protection scope of the present invention.

Claims

1. The utility model provides a wheel individual brake mechanism, includes wheel seat (1) and wheel (2) of roll mounting in the wheel seat, this wheel one side is equipped with brake gear (3) with axle center fixed mounting, its characterized in that wheel seat (1) in still be equipped with brake pedal (4) that are located wheel (2) top and brake slider (5) that are located wheel (2) one side, this brake pedal (4) have upwards pull the location or pull the operation end of location downwards, this brake slider (5) upper end is connected on brake pedal (4), brake slider (5) lower extreme receives pulling upwards of operation end to fix a position and break away from brake gear (3) unblock or pull the location downwards and get into brake gear (3) and lock.

2. The wheel individual brake mechanism of claim 1, characterized in that the brake pedal (4) is an arched plate, the brake pedal (4) is horizontally installed above the wheel (2), the front end of the brake pedal (4) is hinged in the wheel seat (1) to form rotation, and the rear end of the brake pedal (4) extends out of the wheel seat (1) to be exposed and suspended to form an operating end.

3. The wheel individual brake mechanism according to claim 1, characterized in that the upper end of the brake slider (5) is movably fitted in the driving groove (41) on the side of the brake pedal (4) through the driving shaft (51) on the side, and the operating end of the brake pedal (4) is pulled upwards for positioning, the driving shaft (51) correspondingly slides towards the rear end of the driving groove (41) and drives the lower end of the brake slider (5) to disengage from the brake gear (3) for unlocking, or the operating end of the brake pedal (4) is pulled downwards for positioning, the driving shaft (51) correspondingly slides towards the front end of the driving groove (41), and the lower end of the brake slider (5) synchronously enters the brake gear (3) for locking.

4. A wheel individual brake mechanism according to claim 3, characterized in that the upper end of the brake sliding block (5) is provided with a buffer spring (6) which pushes the brake sliding block (5) downwards, the operating end of the brake pedal (4) is pulled downwards for positioning, the buffer spring (6) pushes the brake sliding block (5) to move downwards and drives the driving shaft (51) to slide towards the front end of the driving groove (41) and the lower end of the brake sliding block (5) enters the brake gear (3) for locking.

5. A wheel individual brake mechanism according to claim 3, characterized in that the wheel seat (1) is provided with an upper positioning groove (13) and a lower positioning groove (14), and correspondingly, the brake pedal (4) is provided with a positioning projection (42), the operating end of the brake pedal (4) is pulled upwards, and the positioning projection (42) enters the upper positioning groove (13) for positioning; the operating end of the brake pedal (4) is pulled downwards, and the positioning protrusion (42) enters the lower positioning groove (14) for positioning.

6. A wheel individual brake mechanism according to claim 5, characterized in that an excessive slope (15) is provided between the lower positioning groove (14) and the upper positioning groove (13), the lower part of the excessive slope extends into the lower positioning groove (14), the upper part of the excessive slope extends into the upper positioning groove (13), and the positioning protrusion (42) enters the upper positioning groove (13) from the lower positioning groove (14) along the excessive slope (15).

7. A wheel individual brake mechanism according to claim 1, characterized in that the wheel base (1) is a fork-type wheel base with a downward opening, the wheel (2) is arranged between two fork arms (11) of the wheel base (1) through a wheel shaft (21) in a rolling way; the fork arm is provided with a guide groove (12) for the brake sliding block (5) to slide up and down, and the axis of the guide groove is perpendicular to the axis of rotation of the wheel (2).

8. The wheel single-brake mechanism according to claim 7, wherein the two fork arms (11) are respectively provided with brake sliders (5) with the same structure, and the brake pedal (4) drives the brake sliders (5) on the two fork arms (11) to synchronously unlock or lock.

9. A wheel individual brake mechanism according to claim 7, characterized in that each of said yoke arms (11) is provided with a decorative cover (8) on the outer side.

10. A wheel individual brake mechanism according to claim 1, characterized in that the lower end of the brake block (5) is provided with a T-shaped brake block (52) fitted with a locking brake gear (3).