CN2503305Y

CN2503305Y - Improved structure of universal ball

Info

Publication number: CN2503305Y
Application number: CN 01253018
Authority: CN
Inventors: 李黄权
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-08-10
Filing date: 2001-08-10
Publication date: 2002-07-31
Anticipated expiration: 2011-08-10

Abstract

A universal ball bearing with an improved structure the utility model provided pertains to a device used for supporting a heavy and making the supported heavy slip, and solves the problem that a foreign substance such as the dust is easy to enter a prior universal ball bearing. The universal ball bearing with the improved structure comprises a ball, a ball seat with a concave spherical intracavity for holding the ball and a pellet layer consisting of a plurality of pellets and arranged between the ball and the ball seat; a shell is arranged outside the ball; the ball, the ball seat and the pellet layer are all arranged inside the shell; the ball seat is fixed inside the shell on the upper part of which a round hole for the protrusion of the ball is arranged; a fixing device is arranged on a side of the shell. Not only has the utility model the advantages of simple structure and flexible movement, but also the whole ball seat is covered by the shell without a crack so as to prevent the foreign substance such as the dust from entering the shell, thereby making the universal ball bearing especially suitable for conveying the heavy.

Description

Structure improved universal ball

Technical field

The utility model belongs to a kind of be used to the support device that weight also can make supporter slide, particularly a kind of universal ball.

Background technique

Be used to support the general roller that axle is arranged that adopts of universal movable wheel of weights such as furniture, household electrical appliances, chair, have to be easy to block or to move dumb in the actual using process, and the weight of institute's supporter also had very big restriction.For this reason, the inventor had applied for once that (patent No. was: 01246348.5) for the utility model patent of " universal ball ".This model utility is made up of the cover plate in ball, body and the ball outside, and it is simple in structure, flexibly mobile, has solved the problems referred to above well.But, at the aspects such as conveying, feeder, freight handling that are used for the conveyance of weight such as workpiece, general adopt with the universal ball array of some arrange, ball places on the plane up.When above-mentioned universal ball was applied to this occasion, owing between the bead of its cover plate and chamber body a gap is arranged, in use foreign matter such as dust entered easily, directly influences the flexibility of ball.

Summary of the invention

The purpose of this utility model is in order to solve the present existing the problems referred to above of existing universal ball, a kind of structure improved universal ball of good airproof performance to be provided.

The purpose of this utility model realizes by following technical proposal: this structure improved universal ball comprises that a ball, an inner chamber are that concave spherical surface can be placed the round-bead seat of ball and the pellet shot from a slingshot layer between ball and round-bead seat that one deck is made up of several pellets shot from a slingshot, the outside of ball is a housing, ball, round-bead seat and pellet shot from a slingshot layer all are positioned at housing, round-bead seat is fixed in the housing, housing top is provided with the circular hole that partly stretches out for ball, and the housing sidepiece is provided with fixing device.

Described fixing device is turning edge of housing sidepiece, turns edge perpendicular to the side of housing, and several screw holes are arranged on turning edge.Turn edge general and housing is connected as a single entity.Pass screw hole on turning edge by screw, universal ball can be fixed on substrate or the supporter.

The outside of above-mentioned round-bead seat has annular groove, and the inboard corresponding position of housing also has annular groove, and a jump ring is located in these two annular grooves.Utilize this jump ring that round-bead seat is fixed in the housing.

Also can round-bead seat be fixed in the housing between above-mentioned round-bead seat and the housing by drive fit.

The universal roll structure that the utility model provides is simple, flexibly mobile.Because whole round-bead seat coated by housing, there is not the slit, can prevent that therefore foreign matter such as dust from entering in the housing, makes this universal ball be particularly suitable for the purposes of weight conveyance.

Description of drawings

Fig. 1 is the sectional view that the utility model provides an embodiment of structure improved universal ball.

Fig. 2 is the sectional view that the utility model provides another embodiment of structure improved universal ball.

Fig. 3 is the user mode schematic representation of the utility model when being applied to the weight conveyance.

Embodiment

As shown in Figure 1, this structure improved universal ball comprises ball 2, round-bead seat 4, pellet shot from a slingshot layer 3 and housing 1.The inner chamber that a concave spherical surface is arranged in the round-bead seat 4 is used to place pellet shot from a slingshot layer 3 and ball 2.Pellet shot from a slingshot layer 3 is made up of some pellets shot from a slingshot 30.Ball 2 is spherical shape, and common metal or plastics are that material is made.Ball 2, round-bead seat 4 and pellet shot from a slingshot layer 3 all are arranged in housing 1.

The circular hole 12 that stretches out for ball 2 parts is arranged at housing 1 top.There is the shape that matches with ball 2 on circular hole 12 surfaces.The sidepiece of housing 1 is for turning edge 10, turns edge 10 to be connected as a single entity with housing 1.In the present embodiment, turning edge has two screw holes 11 on 10, is used for fixing housing 1.Housing common metal or plastics are that material is made.

As shown in Figure 1, have annular groove between round-bead seat 4 and housing 1 inboard, a jump ring 6 is set in the annular groove.By this jump ring 6, make round-bead seat 4 can not break away from housing 1.

In addition, also be provided with a packing ring 5 in the housing 1, packing ring 5 is positioned at the top of round-bead seat 4.Packing ring 5 has two effects: the one, prevent that foreign matters such as dust from being entered in the pellet shot from a slingshot layer 3 by circular hole 12 places of housing 1, guarantees that ball 2 moves flexibly; The 2nd, stop the pellet shot from a slingshot 30 of pellet shot from a slingshot layer 3 to make pellet shot from a slingshot 30 be in suitable position.

As shown in Figure 2, in this embodiment, round-bead seat 4 is by being tightly fixed in housing 1.In the present embodiment, round-bead seat 4 is to adopt sheet metal to be stamped to form, and its size is slightly larger than the internal diameter of housing 1, utilizes the elasticity of sheet metal, round-bead seat 4 is squeezed in the housing 1 and is fixed, and the product assembling is very simple and convenient.

As shown in Figure 3, this structure improved universal ball can be used for the conveyance of weight, generally a large amount of even arrays of universal ball is arranged on the substrate during use.Above the weight of the conveyance of wanting or workpiece directly are positioned over, pull and get final product.During operation not only direction control easily, and move very laborsaving.Certainly, the structure improved universal ball that the utility model provides also is suitable for being fixed on the supporter, as the bottom of furniture or chair.

Claims

1, a kind of structure improved universal ball, comprise a ball (2), to be the concave spherical surface round-bead seat (4) that can place ball (2) and one deck be positioned at pellet shot from a slingshot layer (3) between ball (2) and the round-bead seat (4) by what several pellets shot from a slingshot (30) were formed for inner chamber, the outside that it is characterized in that described ball (2) is a housing (1), ball (2), round-bead seat (4) and pellet shot from a slingshot layer (3) all are positioned at housing (1), round-bead seat (4) is fixed in the housing (1), housing (1) top is provided with the circular hole (12) that stretches out for ball (2) part, and housing (1) sidepiece is provided with fixing device.

2, structure improved universal ball according to claim 1 is characterized in that described fixing device is turn edge (10) of housing (1) sidepiece, and turn edge (10) have several screw holes (11) perpendicular to the side of housing (1) on turn edge (10).

3, structure improved universal ball according to claim 1 and 2, the outside that it is characterized in that described round-bead seat (4) has annular groove, the inboard corresponding position of housing (1) also has annular groove, and a jump ring (6) is located in these two annular grooves.

4, structure improved universal ball according to claim 1 and 2 is characterized in that by drive fit round-bead seat (4) being fixed in the housing (1) between described round-bead seat (4) and the housing (1).

5, structure improved universal ball according to claim 1 and 2 is characterized in that there is the shape that matches with ball (2) on described circular hole (12) surface.

6, structure improved universal ball according to claim 2 is characterized in that described turning edge (10) and housing (1) are connected as a single entity.

7, structure improved universal ball according to claim 1 and 2 is characterized in that being provided with a packing ring (5) in the described housing (1), and packing ring (5) is positioned at the top of round-bead seat (4).

8, structure improved universal ball according to claim 4 is characterized in that described round-bead seat (4) is to adopt sheet metal to be stamped to form, and its size is slightly larger than the internal diameter of housing (1).