阅读说明：本技术 婴儿车车轮刹车制动机构 (Wheel brake mechanism of baby carriage ) 是由 杨伟忠 杨红 于 2020-08-15 设计创作，主要内容包括：本发明公开了一种婴儿车车轮刹车制动机构,车轮能转动的安装于车轮支架上,车轮上同轴固设有刹车内齿圈,刹车块能够沿车轮径向滑动的安装于车轮支架上,刹车块一端设有沿车轮轴向延伸的卡齿,所述卡齿插设于刹车内齿圈内并能够与刹车内齿圈啮合卡置,弹性件给刹车块提供保持卡齿与刹车内齿圈啮合卡置的弹性力,刹车导杆能够滑动的安装于车轮支架上,所述刹车导杆一端紧抵刹车块另一端,且刹车导杆滑动能够抵压刹车块克服弹性件弹力沿车轮径向滑动,开关安装于车轮支架上,开关能够驱动刹车导杆往复滑动,本发明结构简单,通过一个开关即可实现两个车轮同时刹车或取消刹车,操作方便,刹车稳定,避免了刹车失灵情况发生。(The invention discloses a wheel brake mechanism of a baby carriage, wherein wheels are rotatably arranged on a wheel bracket, a brake inner gear ring is coaxially and fixedly arranged on the wheels, a brake block can be arranged on the wheel bracket in a sliding manner along the radial direction of the wheels, one end of the brake block is provided with a latch extending along the axial direction of the wheels, the latch is inserted in the brake inner gear ring and can be engaged and clamped with the brake inner gear ring, an elastic element provides elastic force for keeping the latch and the brake inner gear ring engaged and clamped with each other for the brake block, a brake guide rod can be arranged on the wheel bracket in a sliding manner, one end of the brake guide rod is tightly pressed against the other end of the brake block, the brake guide rod can be pressed against the brake block to overcome the elastic force of the elastic element to slide along the radial direction of the wheels, a switch is arranged on the wheel bracket, and the switch can drive the brake guide rod to, convenient operation, the brake is stable, has avoided the brake failure condition to take place.)

1. The utility model provides a perambulator wheel brake actuating mechanism which characterized in that: comprises a wheel (1), a wheel bracket, a brake block (2), a brake guide rod (3), an elastic piece (4) and a switch (21), the wheel can be rotatably arranged on the wheel bracket, the wheel is coaxially and fixedly provided with a brake inner gear ring (5), the brake block can be arranged on the wheel bracket in a sliding way along the radial direction of the wheel, one end of the brake block is provided with a latch (6) extending along the axial direction of the wheel, the latch is inserted in the brake inner gear ring and can be engaged and clamped with the brake inner gear ring, the elastic piece provides elastic force for keeping the latch and the brake inner gear ring engaged and clamped with each other for the brake block, the brake guide rod can be slidably arranged on the wheel bracket, one end of the brake guide rod tightly abuts against the other end of the brake block, and the brake guide rod can press the brake block to overcome the elasticity of the elastic part to slide along the radial direction of the wheel by sliding, the switch is arranged on the wheel bracket, and the switch can drive the brake guide rod to slide in a reciprocating manner.

2. The stroller wheel brake mechanism of claim 1, wherein: the two wheel supports are arranged in parallel at intervals, two ends of the connecting rod are fixedly connected with the two wheel supports respectively, the switch is arranged on the connecting rod, and the switch can drive the brake guide rods on the two wheel supports to slide in a reciprocating mode.

3. The stroller wheel brake mechanism of claim 2, wherein: the connecting rod is the tubular structure, is equipped with on the wheel support and supplies the gliding slide of brake guide arm, and the slide cross intercommunication on the inboard and the wheel support of connecting rod can gliding in the connecting rod be equipped with two brake guide poles (8), and two brake guide poles pass through the inclined plane contact with the brake guide arm in the wheel support slide at connecting rod both ends respectively, and the synchronous reverse motion of two brake guide poles of switch drive on the connecting rod.

4. The stroller wheel brake mechanism of claim 3, wherein: the brake guide rod is characterized in that a long-strip-shaped groove structure (9) extending along the axial direction of the brake guide rod is arranged on the side wall of the brake guide rod, a radial protrusion structure is fixedly arranged on the side wall of the connecting rod, and the radial protrusion structure can be slidably inserted into the long-strip-shaped groove structure on the side wall of the brake guide rod.

5. The stroller wheel brake mechanism of claim 1, wherein: the wheel support includes wheel seat (10), wheel seat joint (11) and front fork (12), the wheel seat connects and is equipped with hollow rotating shaft (13), this hollow rotating shaft axial locking and circumferencial direction can the pivoted insert locate the wheel seat in, the brake guide arm can follow endwise slip insert locate the wheel seat connect in the hollow rotating shaft, the front fork upper end is installed on the wheel seat, the wheel can the pivoted install between two inserted sheets of front fork, the brake block can slide to set for installing on the front fork lateral wall of distance, the brake block other end is formed with along wheel axial extension keep off wall (14), should keep off between the wall stretches into two inserted sheets of front fork, brake guide arm one end tightly supports on the wall upside surface that keeps off of the brake block other end.

6. The stroller wheel brake mechanism of claim 5, wherein: be equipped with between two inserted sheets of front fork connecting wall (15), be formed with the fender wall that supplies the brake block in the connecting wall and insert the passageway of establishing, still be equipped with on the lateral wall on the connecting wall with the hollow rotating shaft intercommunication of wheel seat joint dodge the hole, brake guide arm one end is tight the fender wall of supporting the brake block other end in this dodge hole inserts the passageway of connecting wall.

7. The stroller wheel brake mechanism of claim 5, wherein: the brake block is the structure of falling the U-shaped, and the connecting wall is the bottom surface of the structure of falling the U-shaped, latch fixed mounting on the structure of falling the U-shaped open end both sides wall, is formed with gliding slide (16) of confession brake block structure both sides wall on the two inserted sheet lateral walls of front fork.

8. The stroller wheel brake mechanism of claim 7, wherein: the bottom surface of the slide way of the two insertion piece side walls of the front fork is also provided with a guide bulge (17), the side wall of the inverted U-shaped structure of the brake block is also provided with a slide groove extending along the sliding direction of the brake block, and the guide bulge can be inserted into the slide groove in a relative sliding manner.

9. The stroller wheel brake mechanism of claim 5, wherein: the wheel seat joint is provided with a round hole (18) and an arc-shaped hole (19) concentric with the round hole, the upper end of the front fork is provided with two mounting holes right opposite to the round hole and the arc-shaped hole, the two mounting holes at the upper end of the front fork are connected with the round hole and the arc-shaped hole through connecting pieces, and a buffering elastic piece is further arranged between the wheel seat joint and the front fork.

10. The stroller wheel brake mechanism of claim 9, wherein: elastic piece inserting grooves (20) are formed in the wheel seat joint and the front fork respectively, and two ends of the buffering elastic piece are tightly inserted into the elastic piece inserting grooves respectively.

Technical Field

The invention relates to a baby stroller, in particular to a wheel brake mechanism of a baby stroller.

Background

Baby's shallow is deeply favored by the head of a family at present, during the trip, can put the baby and push up the implementation, save strength, the trip is convenient, and the wheel brake structure of present perambulator is mostly realized by the mode that adopts friction, set up eccentric friction disc promptly on the wheel seat, during the brake, need step on the eccentric friction disc of two wheels respectively and realize the wheel brake, eccentric friction disc is the easy wearing and tearing of long-term use on the one hand of this kind of structure, cause the brake failure, on the other hand, need carry out brake operation to two wheels respectively, the operation is inconvenient, still appear easily owing to only giving a wheel brake, the unstable condition of perambulator brake appears.

Disclosure of Invention

In order to overcome the defects, the invention provides the wheel brake mechanism of the baby carriage, which has the advantages of simple structure, convenient brake operation and stable brake.

The technical scheme adopted by the invention for solving the technical problem is as follows: a wheel brake mechanism of a baby carriage comprises wheels, a wheel bracket, a brake block, a brake guide rod, an elastic piece and a switch, the wheel can be rotatably arranged on the wheel bracket, the wheel is coaxially and fixedly provided with a brake inner gear ring, the brake block can be arranged on the wheel bracket in a sliding way along the radial direction of the wheel, one end of the brake block is provided with a latch extending along the axial direction of the wheel, the latch is inserted in the brake inner gear ring and can be engaged and clamped with the brake inner gear ring, the elastic piece provides elastic force for keeping the latch and the brake inner gear ring engaged and clamped with each other for the brake block, the brake guide rod can be slidably arranged on the wheel bracket, one end of the brake guide rod tightly abuts against the other end of the brake block, and the brake guide rod can press the brake block to overcome the elasticity of the elastic part to slide along the radial direction of the wheel by sliding, the switch is arranged on the wheel bracket, and the switch can drive the brake guide rod to slide in a reciprocating manner.

As a further improvement of the invention, the vehicle wheel brake device is also provided with a connecting rod, the two wheel brackets are arranged in parallel at intervals, two ends of the connecting rod are respectively and fixedly connected with the two wheel brackets, and a switch is arranged on the connecting rod and can simultaneously drive the brake guide rods on the two wheel brackets to slide in a reciprocating manner.

As a further improvement of the invention, the connecting rod is of a tubular structure, the wheel bracket is provided with a slideway for the sliding of the brake guide rod, the inner side of the connecting rod is communicated with the slideway on the wheel bracket in a crossing way, the connecting rod is internally provided with two brake guide rods which can slide, the two brake guide rods are respectively contacted with the brake guide rods in the slideways of the wheel bracket at the two ends of the connecting rod through inclined planes, and a switch on the connecting rod drives the two brake guide rods to synchronously and reversely move.

As a further improvement of the invention, the side wall of the brake guide rod is provided with a strip-shaped groove structure extending along the axial direction of the brake guide rod, the side wall of the connecting rod is fixedly provided with a radial bulge structure, and the radial bulge structure can be slidably inserted into the strip-shaped groove structure on the side wall of the brake guide rod.

As a further improvement of the invention, the wheel bracket comprises a wheel seat, a wheel seat joint and a front fork, wherein a hollow rotating shaft is arranged on the wheel seat joint, the hollow rotating shaft is axially stopped and can be rotatably inserted into the wheel seat in the circumferential direction, a brake guide rod can be slidably inserted into the hollow rotating shaft of the wheel seat joint in the axial direction, the upper end of the front fork is arranged on the wheel seat, a wheel can be rotatably arranged between two insertion pieces of the front fork, a brake block can be slidably arranged on the side wall of the front fork for a set distance, a blocking wall extending along the axial direction of the wheel is formed at the other end of the brake block, the blocking wall extends into the space between the two insertion pieces of the front fork, and one end of the brake guide rod is tightly pressed against the upper side surface of the blocking wall.

As a further improvement of the invention, a connecting wall is arranged between the two inserting pieces of the front fork, a channel for inserting the blocking wall of the brake block is formed in the connecting wall, an avoiding hole communicated with the hollow rotating shaft of the wheel seat joint is also arranged on the upper side wall of the connecting wall, and one end of the brake guide rod is inserted into the channel of the connecting wall through the avoiding hole and tightly abuts against the blocking wall at the other end of the brake block.

As a further improvement of the invention, the brake block is of an inverted U-shaped structure, the connecting wall is the bottom surface of the inverted U-shaped structure, the latch is fixedly arranged on two side walls of the opening end of the inverted U-shaped structure, and the side walls of the two inserts of the front fork are provided with slideways for the two side walls of the inverted U-shaped structure of the brake block to slide.

As a further improvement of the invention, the bottom surfaces of the slide ways on the side walls of the two insertion pieces of the front fork are also provided with guide bulges, the side wall of the inverted U-shaped structure of the brake block is also provided with a slide way extending along the sliding direction of the brake block, and the guide bulges can be relatively inserted into the slide way in a sliding way.

As a further improvement of the invention, a round hole and an arc-shaped hole concentric with the round hole are arranged on the wheel seat joint, two mounting holes opposite to the round hole and the arc-shaped hole are formed at the upper end of the front fork, the two mounting holes at the upper end of the front fork are connected with the round hole and the arc-shaped hole through connecting pieces, and a buffering elastic piece is also arranged between the wheel seat joint and the front fork.

As a further improvement of the invention, elastic piece insertion grooves are respectively formed on the wheel seat joint and the front fork, and two ends of the buffering elastic piece are respectively and tightly inserted in the elastic piece insertion grooves.

The invention has the beneficial effects that: the invention overcomes the elastic force to realize the tripping of the latch on the brake block by the sliding of the brake guide rod against the brake block, realizes the random rotation of the wheel, realizes the reverse motion of the brake guide rod, and realizes the braking action by the resetting and gear meshing clamping of the brake block under the elastic action of the elastic part after the brake block loses the pressing action of the brake guide rod.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a first exploded view of the present invention;

FIG. 3 is a second exploded view of the present invention;

FIG. 4 is a front elevational view of a portion of the wheel of the present invention;

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

fig. 6 is a schematic diagram of the structure of the switch synchronous driving two wheels brake.

Detailed Description