CN2167869Y

CN2167869Y - Double-wheel universal caster wheel

Info

Publication number: CN2167869Y
Application number: CN 93242016
Authority: CN
Inventors: 刘金成
Original assignee: LIU JNCHENG
Current assignee: LIU JNCHENG
Priority date: 1993-10-16
Filing date: 1993-10-16
Publication date: 1994-06-08
Anticipated expiration: 2003-10-16

Abstract

The utility model relates to a double-wheel universal caster wheel, comprising a rotary vertical shaft, a framework, a wheel shaft and a rolling wheel, wherein, the rotary vertical shaft is rotationally connected with the framework; the wheel shaft is fixed on the framework; both ends of the wheel shaft are respectively connected with a rolling wheel; a rolling wheel braking device is also arranged on the framework. The utility model has high stability, high load bearing and long service life can be fixed on the ground at any time.

Description

Double-wheel universal caster wheel

The utility model relates to a kind of universal caster wheel, particularly relates to a kind of dicycly universal caster wheel.

At present, the cardan wheel of the different shape of selling on the market all is that monocycly, its less stable, bearing load are little, and the wheel rim wearing and tearing are big, service life is short, and in use because the collision of the ground-surface gradient and external force easily causes self moving of castor.

The purpose of this utility model is to provide a kind of dicycly universal caster wheel of band brake device.

Dicycly universal caster wheel of the present utility model comprises vertical rotation shaft, skeleton, wheel shaft and roller, wherein, vertical rotation shaft and skeleton are rotationally connected, wheel shaft is fixed on the skeleton, and the two ends of wheel shaft are rotationally connected with two identical rollers respectively, is provided with a roller brake equipment on skeleton.

The utility model compared with prior art, good stability, load-bearing height, long service life and roller can be fixed and can not rotate,

Fig. 1 front view that to be dicycly universal caster wheel of the present utility model remove a side wheel, shown position is braking mode not;

Fig. 2 is dicycly universal caster wheel part-structure of the present utility model and dismounting figure thereof, the assembly relation of vertical rotation shaft shown in the figure and brake equipment;

Fig. 3 is dicycly universal caster wheel part-structure of the present utility model and dismounting figure thereof, the assembly relation of a side wheel shown in the figure;

Fig. 4 is the front view that dicycly universal caster wheel of the present utility model is removed a side wheel, and shown position is a braking mode;

Fig. 5 is that the A of the braking pressure head among Fig. 2 is to view;

Fig. 6 is that the B of the brake pedal among Fig. 2 is to view.

Below in conjunction with accompanying drawing, the specific embodiment of dicycly universal caster wheel of the present utility model is described in further detail.

Shown in Fig. 1-4, the utility model dicycly universal caster wheel mainly comprises vertical rotation shaft 20, skeleton 21, wheel shaft 22 and roller 23.Vertical rotation shaft 20 is provided with a ball pressing plate 24, is provided with a ball backing plate 25 between ball pressing plate 24 and skeleton 21, is provided with a circle ball 26 between ball pressing plate 24 and ball backing plate 25.Be provided with a ball 28 between at the bottom of 27 holes, vertical shaft hole on vertical rotation shaft 20 lower surfaces and the skeleton 21.Be provided with a partial metallurgy iolite bushing 29 between vertical rotation shaft 20 lower end circumferential surfaces and vertical shaft hole 27 hole walls, this axle sleeve 29 is to be fixed in the vertical shaft hole 27.In addition, be provided with a circular groove 30, in vertical shaft hole 27, also be provided with a circular groove 31, vertical shaft 20 and skeleton 21 axial restraints are got up by an elastic collar (not shown) in vertical shaft 20 lower ends.One cover of upholstery 32 is installed between ball backing plate 25 and skeleton 21.Wheel shaft 22 is fixed on the skeleton 21, and wheel shaft 22 two ends are rotated respectively a roller 23 is installed, and this roller 23 contains bearing 35 by wheel rim 33, wheel hub 34, partial metallurgy and bearing sheath 36 is formed.Wheel shaft 22 and bearing 35 normal-running fiies, and by resistance bolt 37 and

pad

38 and 39 roller 23 is rotatably fixed on the wheel shaft 22.Be provided with decoration guard shield 40 in the both sides of roller 23.Because moving of causing of the collision of slope, ground or external force is provided with a roller brake equipment on skeleton 21, it is made up of brake pedal 1, braking pressure head 11, connecting rod 6 and extension spring 5 in order to prevent.Skeleton 21 is provided with two the protruding chair of pressure head slide-and-guide 7, one pressure head supports 13 of 14,15, one extension spring fixed orifices and a pedal support 12.Braking pressure head 11 is provided with a slotted eye 10 and a connecting rod axis hole 8, this slotted eye 10 and anchor shaft 9 sliding connections that are fixed on the pressure head support.Brake pedal 1 is provided with an extension spring axis hole 2 and a connecting rod fixed shaft hole 3 and a pedal fixed shaft hole 4.Braking pressure head 11 is connected with pressure head support 13 by anchor shaft 16, connecting rod 6 one ends are rotationally connected by pitman shaft 16 and braking pressure head 11, its other end is rotationally connected by pitman shaft 19 and brake pedal 1, brake pedal 1 is rotationally connected by pedal fix shaft 18 and pedal support 12, extension spring 5 one ends be fixed on brake pedal 1 on extension spring axis hole 2 in an axle (not shown) be connected, the other end is connected with extension spring fixed orifice 7 on the skeleton 21.As shown in Figure 1, do not step on glancing impact when brake pedal 1, fix shaft 18 is in the right side of connecting rod 6 longitudinal axis, and brake pedal 1 this moment up time under the effect of extension spring 5 is rotated, and moves away wheel rim 33 by moving on the connecting rod 6 to make on the braking pressure head 11.When stepping on brake pedal 1 glancing impact, pedal fix shaft 18 is in the left side of connecting rod 6 longitudinal axis, and the effect by extension spring 5 is in brake pedal 1 and keeps braking mode, moves down by connecting rod 6 to drive braking pressure head 11 and move down and push down wheel rim 33.

Claims

1, a kind of dicycly universal caster wheel, it comprises vertical rotation shaft, skeleton, wheel shaft and roller, it is characterized in that vertical rotation shaft and skeleton are rotationally connected, and wheel shaft is installed on the skeleton, be rotationally connected with a roller respectively at the wheel shaft two ends, on skeleton, be provided with a roller brake equipment.

2, universal caster wheel according to claim 1 is characterized in that vertical rotation shaft is provided with the ball pressing plate, is provided with a ball backing plate between ball pressing plate and skeleton, is provided with a circle ball between ball pressing plate and ball backing plate.

3, universal caster wheel according to claim 1, be provided with a ball between it is characterized in that at the bottom of the hole, vertical shaft hole of vertical shaft lower surface and skeleton, be provided with a partial metallurgy iolite bushing between vertical shaft lower end circumferential surface and the vertical shaft hole wall, this axle sleeve is to be fixed in the vertical shaft hole, be provided with a circular groove in the vertical shaft lower end, in the vertical shaft hole, also be provided with a circular groove, play collar with vertical shaft and skeleton axial restraint by one.

4,, it is characterized in that cover of upholstery is located between ball backing plate and the skeleton according to claim 2 or 3 described universal caster wheels.

5, universal caster wheel according to claim 1 is characterized in that roller contains bearing by wheel rim, wheel hub, partial metallurgy and the bearing sheath is formed, and wheel shaft and graphite oilless sintered-metal bearing are rotationally connected, and by resistance bolt and pad roller is rotatably fixed on the wheel shaft.

6, universal caster wheel according to claim 5 is characterized in that the roller both sides are provided with the decoration guard shield.

7, universal caster wheel according to claim 1, it is characterized in that the roller brake equipment is made up of brake pedal, braking pressure head, connecting rod and extension spring, the braking pressure head is fixed on the pressure head support of skeleton, its relative pressure head support gets final product slide relative, can relatively rotate again, on the fixed pedestal support, with connecting rod connection, extension spring is connected between skeleton and the pedal brake pedal between braking pressure head and the brake pedal rotationally.

8, universal caster wheel according to claim 7 is characterized in that being provided with two protruding chairs of pressure head slide-and-guide on skeleton, the braking pressure head is provided with a slotted eye and a connecting rod axis hole, slotted eye and the anchor shaft bearing fit that is fixed on the pressure head support.

9, according to claim 7 or 8 described universal caster wheels, it is characterized in that the brake pedal fix shaft is in the right side of connecting rod longitudinal axis at glancing impact not, brake pedal this moment up time under the effect of extension spring is rotated, make braking move apart shape wheel system circle on the pressure head by connecting rod, at glancing impact, the pedal fix shaft is in the left side of connecting rod longitudinal axis, and the application force of extension spring this moment is to make brake pedal keep braking mode, by connecting rod the braking pressure head is moved down and pushes down wheel rim.