CN2868733Y

CN2868733Y - Rolling-type universal caster

Info

Publication number: CN2868733Y
Application number: CN 200520132635
Authority: CN
Inventors: 田吉传; 俞建福; 王益忠
Original assignee: NINGBO FUDA ELECTRIC APPLIANCE CO Ltd
Current assignee: NINGBO FUDA ELECTRIC APPLIANCE CO Ltd
Priority date: 2005-11-11
Filing date: 2005-11-11
Publication date: 2007-02-14
Anticipated expiration: 2015-11-11

Abstract

The utility model discloses a rolling caster, which comprises a ball seat, a ball cover, a setting ring, large and small balls. A dormer is opened at the center of the top of ball cover of the round shell in which a large ball is put, and the top of the large ball is exposed to the dormer; some small balls are arranged and combined into a part of the round shell, and the spherical surface is placed in the ball seat of the round shell body and the large ball is arranged between the ball cover and the setting ring; and the small balls are arranged between the ball seat and the setting ring, and the part of the round shell concave of the lower part of the large ball and the upper part of the small ball constitutes the spherical rolling contact surface in the setting ring. The small ball and setting ring in the ball seat restrict the large ball at the central location of the ball cover; and after the ball cover is buckled with the ball base, the large and small balls are covered in the round shall cavity, whose contact bearing force is driven uniformly and which has good stability for moving along the horizontal plane, and installation holes can be arranged around the ball seat so that the caster can be conveniently fixed on the pedestal.

Description

The rolling type universal wheel

Technical field

The utility model relates to a kind of improved castor, specifically a kind of rolling type universal wheel that can rotate freely.By International Classification of Patents is to belong to B 60B33/08.

Background technology

In the prior art, for the object that is supporting is made the plane transfer movement, all directly or by under support plate, being equipped with rotate castor or slide block in its underpart, as: sweeper when the ground such as cleaning floor, room, for making body move light and flexible, all on the supporting plate of body or its supported underneath, be provided with rotor wheel or sliding shoe, the main body section of sweeper and floor are maintained a certain distance.But, existing rotation castor be generally fore-and-aft direction rotate more flexible, and when left and right directions or with front and back when having an angle or unfairness is up and down arranged a little, move and will produce bumpyly, or what occur is slip! There is the possibility that laterally rubs with ground.Equally, adopt the multidirectional motion in plane of sliding shoe, promptly have the friction that small size is arranged with floor, they all might cause damage to surfaces such as floors.Particularly transport in the library when putting technical materials, books and periodicals, its dolly castor directivity is poor, and the work of giving has also brought inconvenience.

Summary of the invention

The purpose of this utility model is to overcome weak point in the above-mentioned prior art products, and provide a kind of rolling type universal to take turns, its end face is to be maintained at the same horizontal plane and can to carry out multidirectional slick and sly the rotation freely, installing on the same base plate face under a plurality of cardan wheel situations, still can be synchronous or nonsynchronously finish multidirectional motion and carry out transportation work.

Task of the present utility model is achieved in that a kind of rolling type universal wheel, includes ball lid, ball, nest, ball base, it is characterized in that the ball lid 1 on cardan wheel top,, have circular skylight at its top for the part spherical shell is seated on the supporting plate; Ball is to have adopted big ball 2, little ball 4 contact matching rotational structure forms, little ball 4 is by the identical or different small bead of many diameter, is arranged to form the part spherical shell; In the bottom of cardan wheel, have on the connecting panel of mounting hole, its bottom is the ball base 5 of part spherical shell; Big ball 2 is installed between ball lid 1 and the nest 3, and its top is assemblied in the ball lid 1, the ball top portion be the outer sky that is exposed at ball lid 1 outside window; Little ball 4 is installed between nest 3 and the ball base 5, its underpart sphere is assemblied in the part spherical shell of ball base 5, big ball 2 bottoms and little ball 4 tops all are mounted in the body of same nest 3, are the structure that cooperates with sphere multiple spot rolling touch form between them; Ball lid 1 fastens installation up and down with ball base 5, is to be equipped with cramp in the both sides of ball lid 1, and cramp just fastens ball base 5, then large and

small ball

2,4 is wrapped in its globoid inner chamber.Little ball 4 is a plurality of small beads that differed by diameter, and permutation and combination becomes the part spherical shell bodily form, limited the center of little ball 4 by ball base 5.The half sphere shape shell is arranged the many little balls 4 of bonded assembly, nest 3 is limited in ball with big ball 2 and covers 1 center, can make big ball 2 that rotating direction is arbitrarily arranged, and constitutes the cardan wheel of roller.On the connecting panel of ball base 5, be provided with the through hole that cardan wheel is installed, so that cardan wheel is fixed on the base of body.

The utility model advantage compared with the prior art is; Scroll wheel is a big ball, centre of sphere height is constant, the radius that then rotates horizontal direction arbitrarily is constant, become the many little ball rolling of part spherical shell to cooperate with permutation and combination, the contact surface transmission is even, bearing capacity is stable, along the horizontal plane motion good stability, between them with the multi-aspect transmitting movement of relative rolling touch form, solved having some setbacks property of direction running effectively, can alleviate the friction on surface such as object or supporting plate and floor, solve in use a difficult problem with surface tear such as floor.

Description of drawings

Fig. 1 is the three-dimensional integral structure figure that looks up of the present utility model.

Fig. 2 is the three-dimensional erection plan that cooperates of part of the present utility model.

Fig. 3 will be used in scheme of installation on the sweeper for the utility model;

Among the figure: 1. ball covers 2. big ball 3. nests 4. little ball 5. ball bases

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Shown in Fig. 1,2, a kind of rolling type universal wheel is watched on ground contacting portion being, it comprises: ball lid 1, big ball 2, nest 3, little ball 4, ball base 5.Be part spherical shell permutation and combination by the little ball 4 of many grains and be installed with, be placed in the ball base 5 land portions housings; Little ball 4 tops are installed in the nest 3, big ball 2 is installed between ball lid 1 and the nest 3, and the cooperation that contacts with the little ball 4 spherical shell inner chambers that are placed in nest 3 bottoms, is with big or small sphere rolling touch between them, pearl rotates very flexible, and its friction force is very little.The ball of semicircle spherical shell covers 1 top and has circular skylight, the part sphere of big ball 2 just expose to ball lid 1 day outside window, become roller.Ball lid 1 is equipped with cramp in the both sides of ball lid 1 after fastening installation up and down with ball base 5, and cramp just fastens ball base 5, then large and

small ball

2,4 is wrapped in its spherical shell inner chamber.Around ball base 5, be provided with the through hole that cardan wheel location usefulness is installed, can easily the rolling type universal wheel be fixed on the base of body.

Scheme drawing when Fig. 3 desires to be installed on hand-held " sweeper " for the utility model; four rolling type universal wheels; to be fixed on the place, four angles of " sweeper " connecting panel bottom with screw; when using sweeper; big ball 2 on four rolling type universals wheel, the body of " sweeper " is being supported by nest 3, little ball 4, ball base 5 in its top, and the bottom contacts with ground surface; reduce the friction with floor surface, reached the ground-surface purpose of protection.

Claims

1, a kind of rolling type universal wheel includes ball lid, ball, nest, and ball base is characterized in that the ball on cardan wheel top covers (1), for the part spherical shell is seated on the supporting plate, has circular skylight at its top; Ball is to have adopted big ball (2), little ball (4) contact matching rotational structure, and little ball (4) is by some small beads, is arranged to form the part spherical shell; Have in the bottom of cardan wheel on the connecting panel of mounting hole, its bottom is the ball base (5) of part spherical shell; Big ball (2) is installed between ball lid (1) and the nest (3), and its top is assemblied in the ball lid (1), the ball top portion be the outer sky that is exposed at ball lid (1) outside window; Little ball (4) is installed between nest (3) and the ball base (5), and its underpart sphere is assemblied in the part spherical shell of ball base (5); Big ball (2) bottom and little ball (4) top all are mounted in the body of same nest (3), are the structure that cooperates with sphere multiple spot rolling touch form between them; Ball lid (1) fastens installation up and down with ball base (5), is to be equipped with cramp in the both sides of ball lid (1), and cramp just fastens ball base (5), then large and small ball (2), (4) is wrapped in its globoid inner chamber.

2, rolling type universal according to claim 1 wheel is characterized in that little ball (4) is by the identical or different most small beads of diameter, and permutation and combination becomes the part spherical shell.

3, rolling type universal according to claim 1 wheel is characterized in that it being in the spherical shell by ball base (5), limits the center of little ball (4).

4, rolling type universal wheel according to claim 1 is characterized in that it being the center that big ball (2) is limited in ball lid (1) by little ball (4), nest (3).

5, rolling type universal according to claim 1 wheel is characterized in that on the connecting panel of ball base (5), is equipped with cardan wheel is fixed on through hole on the base of body.