CN2393782Y

CN2393782Y - Anti-turn-over mechanism for pushchair

Info

Publication number: CN2393782Y
Application number: CN 99240207
Authority: CN
Inventors: 叶苗龙; 徐峻
Original assignee: Goodbaby Group Corp
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 1999-11-05
Filing date: 1999-11-05
Publication date: 2000-08-30
Anticipated expiration: 2009-11-05

Abstract

The utility model relates to an anti-turn-over mechanism for push chairs; an arc-shaped bottom bar (8) is fixedly provided with a back wheel support frame on which a rear wheel shaft (1) is rotatablely connected. The utility model is characterized in that the rear wheel shaft (1) is fixedly provided with a radically extending shifting block (11); the shifting block (11) is contacted with one end of a pressure spring (9); the other end of the pressure spring (9) is fixed to the support frame of the rear wheel. As the rear wheel shaft is connected with the pressure spring by the shifting block, the pressure spring can prevent a rotary shaft from rotating as well as can play an anti-vibration role; the special damping device is omitted, which reduces production cost.

Description

The trailing wheel anti-canting mechanism of go-cart

The utility model relates to a kind of perambulator.

In the prior art, the structure of perambulator as shown in Figure 4, its hind axle is a crank-like, make that trailing wheel can above turning over and the arc bottom bar is landed, perambulator has the function of shaking, when turn under the trailing wheel land after, perambulator can be carried out, but the trailing wheel anti-canting of perambulator only relies on the effect of ratchet in the prior art, and the trailing wheel of perambulator easily overturns after the commutation of pushing hands bar.

The purpose of this utility model is to provide a kind of trailing wheel anti-canting mechanism that can effectively prevent the trailing wheel upset of perambulator and have the go-cart of shock-absorbing effect.

The technical solution of the utility model is: a kind of trailing wheel anti-canting mechanism of go-cart, be fixed with rear wheel support on the arc bottom bar, hind axle has been rotatably connected on the described rear wheel support, be fixed with the shifting block that radially extends on the described hind axle, one end of this shifting block and described stage clip is inconsistent, and the other end of stage clip is fixed on the rear wheel support.

The utility model compared with prior art has following advantage:

Because hind axle is connected with stage clip by shifting block, so stage clip removes and has the effect that prevents the rotation of rotating shaft afterwards, also can play the shock-absorbing effect, omitted special-purpose shock absorption device, can reduce production costs.

The utility model will be further described below in conjunction with drawings and Examples:

Accompanying drawing 1 is a structural front view of the present utility model;

Accompanying drawing 2 is a structure right elevation of the present utility model;

Accompanying drawing 3 is a structure left view of the present utility model;

Accompanying drawing 4 is the three-dimensional structure diagram of whole perambulator; Wherein:

[1], hind axle; [2], ratchet; [3], rear wheel support connecting strap; [4], ratchet teeth groove; [5], ratchet; [6], ratchet rotating shaft; [7], torsion spring; [8], arc bottom bar; [9], stage clip; [10], the stage clip axis of guide; [11], shifting block; [12], damping contact; [13], permanent seat; [14], ratchet handle;

Embodiment: referring to accompanying drawing, a kind of trailing wheel anti-canting mechanism of go-cart, the arc bottom bar is fixed with rear wheel support on [8], and described rear wheel support is made up of rear wheel support connecting strap [3] and permanent seat [13].Hind axle [1] has been rotatably connected on the described rear wheel support, this hind axle is a crank shape, its top and described rear wheel support are rotatably connected, its underpart is as the wheel shaft of trailing wheel, makes trailing wheel can turn to the top of described arc bottom bar [8] or turn to the below of described arc bottom bar [8].Be fixed with the shifting block [11] that radially extends on the described hind axle [1], this shifting block [11] is inconsistent with an end of described stage clip [9], and the other end of stage clip [9] is fixed on the rear wheel support.Referring to accompanying drawing 1 and accompanying drawing 3, the axle center of described stage clip [9] is provided with the stage clip axis of guide [10], one end of this stage clip axis of guide [10] is fixed with damping contact [12], one end of the inner end of this damping contact [12] and stage clip [9] is inconsistent, and the outer end of damping contact [12] and described shifting block [11] are inconsistent.Described stage clip [9] can stop described hind axle [1] anticlockwise direction rotation, even if slightly rotation also can the damping owing to the effect of stage clip [9], mainly avoids shaking when perambulator is carried out.

Referring to accompanying drawing 1 and accompanying drawing 2, ratchet [5] also has been rotatably connected on the described rear wheel support, be fixed with the ratchet [2] that has ratchet teeth groove [4] on the described hind axle [1], described ratchet [5] is stuck in the described ratchet teeth groove [4], also is connected with the torsion spring [7] that makes described ratchet [5] be tending towards pressing to described ratchet teeth groove [4] on the described ratchet [5].The rear portion of described ratchet [5] is provided with ratchet handle [14], and this ratchet handle [14] protrudes from the outside of described rear wheel support.Described ratchet [2] can be prevented described hind axle [1] right-hand revolution, make perambulator when the pushing hands bar commutates, promote perambulator and can not cause back rotating shaft [1] to be rotated, only after depressing ratchet handle [14], just allow ratchet [5] to break away from ratchet teeth groove [4], make hind axle [1] be clockwise rotated and trailing wheel is turned over above or below the arc bottom bar [8].

Claims

1, a kind of trailing wheel anti-canting mechanism of go-cart, the arc bottom bar is fixed with rear wheel support on [8], hind axle [1] has been rotatably connected on the described rear wheel support, it is characterized in that: be fixed with the shifting block [11] that radially extends on the described hind axle [1], this shifting block [11] is inconsistent with an end of described stage clip [9], and the other end of stage clip [9] is fixed on the rear wheel support.

2, the trailing wheel anti-canting mechanism of go-cart according to claim 1, it is characterized in that: the axle center of described stage clip [9] is provided with the stage clip axis of guide [10], one end of this stage clip axis of guide [10] is fixed with damping contact [12], one end of the inner end of this damping contact [12] and stage clip [9] is inconsistent, and the outer end of damping contact [12] and described shifting block [11] are inconsistent.

3, the trailing wheel anti-canting mechanism of go-cart according to claim 2, it is characterized in that: ratchet [5] also has been rotatably connected on the described rear wheel support, be fixed with the ratchet [2] that has ratchet teeth groove [4] on the described hind axle [1], described ratchet [5] is stuck in the described ratchet teeth groove [4], also is connected with the torsion spring [7] that makes described ratchet [5] be tending towards pressing to described ratchet teeth groove [4] on the described ratchet [5].

4, the trailing wheel anti-canting mechanism of go-cart according to claim 2, it is characterized in that: the rear portion of described ratchet [5] is provided with ratchet handle [14], and this ratchet handle [14] protrudes from the outside of described rear wheel support.