CN2478898Y - Rear wheel shock-absorbing mechanism of handcart - Google Patents

Abstract

The utility model relates to a rear wheel earthquake prevention mechanism of a push cart, which comprises a rear wheel support, a rear wheel rotating shaft (8), a rear wheel (6), wherein the rear wheel rotating shaft (8) is arranged on the rear wheel support, the rear wheel (6) is arranged on the rear wheel rotating shaft (8), the rear wheel (6) is equipped with a brake disk, and the rear wheel support is articulated with a brake lever (7). The utility model is characterized in that the rear wheel support comprises a rear wheel support sleeve (9), a lower fixing part (21) and a rear leg (5), wherein the rear wheel support sleeve (9) is equipped with the rear wheel rotating shaft (8), the lower fixing part (21) is connected with the rear wheel support sleeve (9), and the rear leg (5) is sleeved on the upper end portion of the lower fixing part (21) and is glidingly connected with the lower fixing part (21), and a spring (13) is arranged in an intracavity of the rear leg (5). In a breaking state, the displacement of the rear wheel is capable of being small, and the utility model is accord with the safety standard.

Description

The trailing wheel shockproof mechanism of go-cart

The utility model relates to the trailing wheel shockproof mechanism of a kind of go-cart, particularly children trolley or Three-wheel car.

In the prior art, in the trailing wheel shock absorbing apparatus of go-cart, between rear wheel seat and the support hinge-point is arranged, when the shock-proof spring stress deformation, rear wheel seat will be round the hinge-point displacement that rotates, thereby makes brake also swaying in synchrony, thereby the bigger displacement of generation, general displacement is 45 millimeters, fails safety standards.

The purpose of this utility model is to provide the trailing wheel shockproof mechanism of a kind of trailing wheel in the little go-cart of the state bottom offset amount of brake.

The technical solution of the utility model is: a kind of trailing wheel shockproof mechanism of go-cart, comprise rear wheel support, be arranged at the trailing wheel rotating shaft on the described rear wheel support, be arranged at the trailing wheel in the described trailing wheel rotating shaft, the side of described trailing wheel along the circumferential direction is arranged with a plurality of convex tendons brake disc alternate with groove, also be hinged with brake lever on the described rear wheel support, described rear wheel support comprises the rear wheel support cover that is provided with the trailing wheel rotating shaft, the following connecting element that is connected with the rear wheel support cover, be enclosed within the described down connecting element upper end and the back leg of sliding block joint with it, be provided with spring in the inner chamber of described back leg, the upper end and the back leg of this spring are inconsistent, and the bottom of described spring is against the described upper end of connecting element down.

The utility model compared with prior art has following advantage:

The axial line of back leg and the axle center of rear wheel coincide, therefore at back leg along in the axial line shock-absorbing motion process, the displacement of back leg is unlikely to cause moving of trailing wheel; Under braking state, can make the displacement of trailing wheel less, meet safety rate.

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

Accompanying drawing 1 is the structural front view of car load;

Accompanying drawing 2 is I place amplification view; Wherein:

[1], front-wheel; [2], front-wheel support; [3], hood; [4], pushing hands bar; [5], back leg; [6], trailing wheel; [7], brake lever; [8], trailing wheel rotating shaft; [9], rear wheel support cover; [10], protruding registration mast; [11], lower bearing pin; [12], shock-absorbing bar; [13], spring; [14], upper fixing element; [15], upper pin; [16], upper rail; [17], lower guide channel; [18], convex tendon; [19], groove; [20], spring; [21], following connecting element;

Embodiment: referring to accompanying drawing 1 to accompanying drawing 2, a kind of trailing wheel shockproof mechanism of go-cart, comprise rear wheel support, be arranged at the trailing wheel rotating shaft [8] on the described rear wheel support, be arranged at the trailing wheel [6] in the described trailing wheel rotating shaft [8], the side of described trailing wheel [6] along the circumferential direction is arranged with a plurality of convex tendons [18] and the alternate brake disc of groove [19], also be hinged with brake lever [7] on the described rear wheel support, described rear wheel support comprises the rear wheel support cover [9] that is provided with trailing wheel rotating shaft [8], the following connecting element [21] that is connected with rear wheel support cover [9], be enclosed within described down connecting element [21] upper end and the back leg of sliding block joint [5] with it, be provided with spring [13] in the inner chamber of described back leg [5], upper end of this spring [13] and back leg [5] are inconsistent, and the bottom of described spring [13] is against the described upper end of connecting element [21] down.

In the inner chamber of described back leg [5] with back leg [5] upper fixing element [14] that has been fixedly connected, be fixed with upper pin [15] radially on this upper fixing element [14], be fixed with lower bearing pin [11] radially on the described connecting element [21] down, be provided with shock-absorbing bar [12] in the inner chamber of the back leg [5] between upper fixing element [14] and the following connecting element [21], the top of described shock-absorbing bar [12] is provided with upper rail [16] longitudinally, the bottom of described shock-absorbing bar [12] is provided with lower guide channel [17] longitudinally, described upper pin [15] is inserted in the upper rail [16], and described lower bearing pin [11] is inserted in the lower guide channel [17].

Described rear wheel support cover [9] reaches down and has the hole of running through between the connecting element [21], is provided with protruding registration mast [10] in the described hole, and the spring [20] of connecting element [21] inner chamber is connected the inner end of described protruding registration mast [10] with being arranged in down.

Claims (3)

1, a kind of trailing wheel shockproof mechanism of go-cart, comprise rear wheel support, be arranged at the trailing wheel rotating shaft [8] on the described rear wheel support, be arranged at the trailing wheel [6] in the described trailing wheel rotating shaft [8], the side of described trailing wheel [6] along the circumferential direction is arranged with a plurality of convex tendons [18] and the alternate brake disc of groove [19], also be hinged with brake lever [7] on the described rear wheel support, it is characterized in that: described rear wheel support comprises the rear wheel support cover [9] that is provided with trailing wheel rotating shaft [8], the following connecting element [21] that is connected with rear wheel support cover [9], be enclosed within described down connecting element [21] upper end and the back leg of sliding block joint [5] with it, be provided with spring [13] in the inner chamber of described back leg [5], upper end of this spring [13] and back leg [5] are inconsistent, and the bottom of described spring [13] is against the described upper end of connecting element [21] down.

2, the trailing wheel shockproof mechanism of go-cart according to claim 1, it is characterized in that: in the inner chamber of described back leg [5] with back leg [5] upper fixing element [14] that has been fixedly connected, be fixed with upper pin [15] radially on this upper fixing element [14], be fixed with lower bearing pin [11] radially on the described connecting element [21] down, be provided with shock-absorbing bar [12] in the inner chamber of the back leg [5] between upper fixing element [14] and the following connecting element [21], the top of described shock-absorbing bar [12] is provided with upper rail [16] longitudinally, the bottom of described shock-absorbing bar [12] is provided with lower guide channel [17] longitudinally, described upper pin [15] is inserted in the upper rail [16], and described lower bearing pin [11] is inserted in the lower guide channel [17].

3, the trailing wheel shockproof mechanism of go-cart according to claim 1, it is characterized in that: described rear wheel support cover [9] reaches down and has the hole of running through between the connecting element [21], be provided with protruding registration mast [10] in the described hole, the spring [20] of connecting element [21] inner chamber is connected the inner end of described protruding registration mast [10] with being arranged in down.

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