CN2801586Y

CN2801586Y - Rotating and shock absorbing device for wheel set of baby carriage

Info

Publication number: CN2801586Y
Application number: CN 200520016600
Authority: CN
Inventors: 邓美生
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-20
Filing date: 2005-04-20
Publication date: 2006-08-02
Anticipated expiration: 2015-04-20

Abstract

The utility model relates to a baby carriage, particularly to a rotary and shock-proof device for a wheel group of the baby carriage, which comprises wheels, a wheel fork arm, a rotary seat and a torsional spring. The utility model is characterized in that the wheel fork arm is fixed on the baby carriage wheels through a wheel shaft; the rotary seat is locked with the wheel fork arm through a fastening bolt; one end of the torsional spring is clamped in a groove of the wheel fork arm, and the other end is clamped in a groove of the rotary seat. Shock can be generated when the wheels run on the uneven road surface, the wheel fork arm is driven by the wheels to rotate by considering the fastening bolt as a shaft to drive the torsional spring to twist, and accordingly, the shock of the wheels is absorbed by the torsional spring; in addition, the wheels can also be driven to axially rotate through the upper part of the rotary seat and through the rotary shaft. The utility model has the advantages of simple structure, rotary performance, shock resistance and more stable during running.

Description

Rotation of perambulator wheels and shock absorbing apparatus

Technical field

The utility model relates to a kind of perambulator, relates to the perambulator of a kind of wheels rotation and shock absorbing apparatus specifically.

Background technology

Existing perambulator all is that wheel is directly installed on the vehicle frame of perambulator by modes such as welding, be spirally connected usually, and its structure is very simple.Yet, perambulator and rough road traveling in, rough road surface tends to make perambulator to produce very big vibrations, the utmost point that jolts of travelling is not steady, the baby can feel very ill during wigwag motion in car.When some condition of road surface is bad, the danger that may also can make user's application of force cause front-wheel significantly to turn to suddenly accidentally and cause perambulator to topple over, in addition, when perambulator need be turned or be got around obstacle, it is controlled difficultly, also gives simultaneously and uses the people of perambulator to make troubles.

The utility model content

This later-model purpose be provide at above technical deficiency a kind of simple in structure, make that perambulator is rotatable in motion, shock-absorbing, handy, rotation of pulsation-free perambulator wheels and shock absorbing apparatus more.This task realizes by following design: a kind of perambulator wheels rotation and shock absorbing apparatus, comprise wheel, wheel yoke, rotary seat and torsion spring, it is characterized in that, the described yoke of taking turns is fixed on the wheel of perambulator by wheel shaft, rotary seat is sealed with the wheel yoke by binding bolt, and an end of described torsion spring is fastened in the groove of taking turns yoke, the other end is fastened in the groove of rotary seat.

The described yoke of taking turns of above-mentioned perambulator wheels rotation and shock absorbing apparatus inwardly is provided with the sheathed and hollow projection that supply described binding bolt to pass of described torsion spring; The top of rotary seat is connected with the S. A. permanent seat by rotating shaft, and the S. A. permanent seat is connected with stroller frame; The symmetry torsion spring is fastened within two-wheeled yoke and the rotary seat; The surface of wheel yoke is with inside race, the sheathed outside race of its S. A. permanent seat inside face; The top of S. A. permanent seat also is provided with fixedly flap of S. A.; S. A. is the hinged spline buckle in the flap outside fixedly, and described rotary seat and the corresponding position of spline buckle are provided with the groove that snaps in for the spline buckle.

Compared with prior art, the vibrations that the wheel of the utility model perambulator wheels rotations and shock absorbing apparatus produces when the operation of the road surface of injustice are that axle rotates with the binding bolt by wheel driven wheel yoke, drive torsion spring and reverse, thereby absorbed the vibrations of wheel by torsion spring; Can also drive wheel by S. A. in addition and do axial rotation, have that mechanism is simple, rotatable, shock-absorbing, a perambulator pulsation-free advantage more in the process of travelling.

Description of drawings

Fig. 1 is the utility model STRUCTURE DECOMPOSITION scheme drawing;

Fig. 2 is the enlarged diagram of the utility model wheel yoke, lasso, torsion spring and rotary seat;

Fig. 3 is the semi-sictional view enlarged diagram of the utility model spline snap lock state;

Fig. 4 is the utility model combination (spline buckle release position) scheme drawing.

The specific embodiment

Below be the preferable a kind of embodiment of the utility model, therefore do not limit the scope that the utility model is protected.

Below in conjunction with accompanying drawing perambulator wheels rotation of the present utility model and shock absorbing apparatus are described in further detail.Please refer to accompanying drawing 1 to accompanying drawing 4, rotation of the utility model perambulator wheels and shock absorbing apparatus comprise wheel 70, wheel yoke 60, rotary seat 50 and torsion spring 90, wheel yoke 60 is fixed on the wheel 70 of perambulator by wheel shaft 80, rotary seat 50 is sealed with wheel yoke 60 by binding bolt 100, and an end of torsion spring 90 is fastened in the groove 85 of taking turns yoke 60, the other end is fastened in the groove 45 of rotary seat 50.When the wheel 70 of perambulator is stressed, wheel 70 drives the described yoke 60 of taking turns and takes up fixing bolt 100 and rotate for axle, thereby driving described torsion spring 90 reverses, under the effect of the elastic restoring force of torsion spring 90, absorbed vibrations, thereby made perambulator more steady when travelling from wheel 70 or other parts.

The described yoke 60 of taking turns inwardly is provided with described torsion spring 90 sheathed and hollow projections 62 that supply described binding bolt 100 to pass, binding bolt 100 is connected the described yoke 60 of taking turns with rotary seat 50, increased the rigidity of torsion spring 90 and the synchronous degree of both sides wheel yokes (60).The top rotating shaft 40 of rotary seat 50 is connected with S. A. permanent seat 20 by anti-skidding nut 35, S. A. permanent seat 20 can be by welding, mode such as be spirally connected is connected with stroller frame (figure indicates), symmetry two torsion springs 90 are fastened on respectively within two-wheeled yoke 60 and the rotary seat 50, the surface 55 of two-wheeled yoke 60 is with inside race 25 respectively, its S. A. permanent seat 50 inside faces 48 both sides are sheathed outside race 28 respectively, when inside race 25 fastens use simultaneously with outside race 28, the friction that the inside face 48 that can reduce rotary seat 50 and the surface 55 of wheel yoke 60 take place, thereby the service life when prolonging perambulator wheel yoke 60 and contacting with rotary seat 50.

The top of described S. A. permanent seat 20 is with fixedly flap 10 of S. A., protects described S. A. permanent seat 20 interior parts not to be subjected to the pollution of dust.S. A. fixedly is hinged with spline buckle 30 in flap 10 outsides; Rotary seat 50 is provided with the groove 58 that snaps in for spline buckle 30 with spline buckle 30 corresponding positions.When pulling spline buckle 30 and snap in the groove 58, make the spline buckle 30 and rotary seat 50 lockings that S. A. fixedly is provided with on the flap 10, can't make axial rotation, thereby make perambulator orientation to travel.

Claims

1, a kind of perambulator wheels rotation and shock absorbing apparatus, comprise wheel (70), wheel yoke (60), rotary seat (50) and torsion spring (90), it is characterized in that, the described yoke (60) of taking turns is fixed on the wheel (70) of perambulator by wheel shaft (80), rotary seat (50) is sealed with wheel yoke (60) by binding bolt (100), and an end of described torsion spring (90) is fastened in the groove (85) of taking turns yoke (60), the other end is fastened in the groove (45) of rotary seat (50).

2, perambulator wheels rotation according to claim 1 and shock absorbing apparatus is characterized in that, the described yoke (60) of taking turns inwardly is provided with the sheathed and hollow projection (62) that supply described binding bolt (100) to pass of described torsion spring (90).

3, perambulator wheels rotation according to claim 1 and 2 and shock absorbing apparatus, it is characterized in that, the top of described rotary seat (50) is connected with S. A. permanent seat (20) by rotating shaft (40), and described S. A. permanent seat (20) is connected with stroller frame.

4, perambulator wheels according to claim 3 rotation and shock absorbing apparatus is characterized in that, described being fastened on is the torsion spring of a pair of symmetry (90) within two-wheeled yoke (60) and the rotary seat (50).

5, perambulator wheels rotation according to claim 4 and shock absorbing apparatus is characterized in that described surface (55) of taking turns yoke (60) is with inside race (25), its sheathed outside race of S. A. permanent seat (50) inside face (48) (28).

6, perambulator wheels rotation according to claim 3 and shock absorbing apparatus is characterized in that the top of described S. A. permanent seat (20) also is provided with fixedly flap (10) of S. A..

7, perambulator wheels rotation according to claim 6 and shock absorbing apparatus is characterized in that, described S. A. is flap (10) outside hinged spline buckle (30) fixedly; Described rotary seat (50) is provided with the groove (58) that snaps in for spline buckle (30) with the corresponding position of spline buckle (30).