CN201089337Y - Flexible and durable swivel wheels - Google Patents

Abstract

The utility model relates to a rotation truckle technical field of case and bag, promptly: nimble durable universal wheel, by the base, the wheel carrier, bearing and wheel are constituteed, the wheel is installed on the shaft hole of wheel carrier lower extreme, its characterized in that is connected with centripetal cylindrical roller bearing or radial ball bearing on the mesopore of the vertical direction at wheel carrier middle part, be provided with the location circular slot and the rivet hole of wheel carrier at the middle part of base, pass centripetal cylindrical roller bearing or radial ball bearing's sky in proper order with the rivet, riveting behind the rivet hole on the base, make the wheel carrier can revolute the rotation that the axle was 360 degrees, the advantage is: the universal wheel has the advantages of flexible movement, high rotating speed, low friction and no noise, is suitable for running under the conditions of precision, high speed, heavy load and impact, rotates within the range of 360 degrees, and is suitable for being popularized and used as the universal wheel on the bottom feet of bags and various products such as chairs, sofas, equipment, instruments and the like.

Description

Flexible and durable swivel wheels

Technical field:

The utility model relates to the technical field of swivel casters for bags, in particular to a flexible and durable universal wheel.

Background technique:

At present, the casters that people use at the lower end of the case and bag—the universal wheel, as shown in Figure 1, is that a thrust ball bearing 4 is arranged between the upper end surface of the wheel frame 2 and the lower end surface of the base 1, and passes through the rivet 3 Wherein the hole is riveted, and the wheel 5 is installed on the shaft hole at the lower end of the wheel frame 2. The bearing 4 is a ball set on a very thin bearing frame. Due to the large gap between the ball and the bearing frame, between the ball and the upper end surface of the wheel frame 2 and the lower end surface of the base 1, the rotation of the product is inflexible and the noise is large during use. The bearing frame is made relatively thin, which is easy to damage the bearing and the end face in contact with it, causing damage to the entire universal wheel, which affects the normal use of the case and bag.

Invention content:

The purpose of the utility model is to provide a universal wheel with flexible rotation, no noise and long service life.

The utility model is achieved in this way: the flexible and durable universal wheel is composed of a base, a wheel frame, a bearing and a wheel. The upper part is connected with a radial cylindrical roller bearing or a radial ball bearing, and a positioning circular groove and a rivet hole of the wheel frame are arranged in the middle of the base, and the rivets pass through the inner space of the radial cylindrical roller bearing or the radial ball bearing in turn. , The rivet holes on the base are riveted, so that the wheel frame can rotate 360 degrees around the rotating shaft.

Above-mentioned rivet also can replace with bolt or bearing pin.

The bearings connected to the above-mentioned wheel frame are connected by interference fit or the wheel frame is formed directly on the outer ring of the bearing.

A gasket is arranged between the upper end surface of the above-mentioned base and the riveting surface of the rivet.

Compared with the prior art, the outstanding advantages of the utility model are:

1. In the utility model, since the inner ring of the bearing is fixedly connected with the rivets and the base, and the outer ring of the bearing is fixedly connected with the inner wall of the wheel frame, the gap between the ball and the inner and outer rings of the bearing is the marked design gap, and the inner and outer rings of the bearing There is no gap between the base and the inner wall of the wheel frame, which makes the movement of the product flexible, high-speed, low-friction, and noiseless.

2. The bearing installation method of the utility model can be adapted to operate under the conditions of precision, high speed, heavy load and impact, and the runner can rotate within a range of 360 degrees around the rotating shaft.

3. The utility model is suitable for use as universal wheels on the feet of luggage, various chairs, sofas, equipment, instruments and other products.

Description of drawings:

Fig. 1 is a schematic sectional view of the structure of the background technology;

Fig. 2 is a structural sectional schematic view of the utility model;

Fig. 3 is the bottom view of base 10 in the utility model;

Fig. 4 is the A-A direction sectional view of Fig. 3;

Fig. 5 is the front view of the wheel frame 20 and the bearing 30 installed thereon in the utility model;

Fig. 6 is a cross-sectional view taken along line B-B in Fig. 5 .

Detailed ways:

The utility model is described further below with specific embodiment:

See Fig. 2-6: flexible and durable universal wheel, composed of a base, a wheel frame, bearings and wheels, the wheel 50 is installed on the shaft hole 202 at the lower end of the wheel frame 20, and is characterized by the The center hole 201 is connected with a centripetal cylindrical roller bearing or a centripetal ball bearing 30, and a positioning circular groove 102 and a rivet hole 103 of the wheel frame 20 are arranged in the middle of the base 10, and the rivet 40 passes through the centripetal cylindrical roller in turn. The inner space 301 of the bearing or the radial ball bearing 30 and the rivet hole 103 on the base 10 are riveted, so that the wheel frame 20 can rotate 360 degrees around the shaft.

Above-mentioned rivet 40 also can replace with bolt or bearing pin.

The bearing 30 connected to the above-mentioned wheel frame 20 is directly formed on the outer ring of the bearing 30 to form the wheel frame 20, and the bearing 30 and the wheel frame 20 can also be connected through interference fit.

A washer 50 is provided between the upper end surface of the above-mentioned base 10 and the riveting surface of the rivet 40 .

Use of the present utility model: utilize bolts or screws to pass through the mounting holes 101 on the base 10 of the present utility model, and be installed on the feet of products such as bags, seats, sofas, equipment, instruments, etc., even if the above-mentioned products are formed with turning feet Products that can be flexibly moved by pushing or pulling the above products.

The above-described embodiment is only one of the preferred embodiments of the present utility model, and is not intended to limit the scope of implementation of the present utility model, so: all equivalent changes made according to the shape, structure and principle of the present utility model should be covered. Within the protection scope of the present utility model.

Claims (4)

1. flexible durable cardan wheel, by base, wheel carrier, bearing and wheel are formed, wheel (50) is installed on the axis hole (202) of wheel carrier (20) lower end, it is characterized in that on the mesopore (201) of the vertical direction at wheel carrier (20) middle part, being connected with entad cylindrical roller bearing or radial ball bearing (30), be provided with the location circular groove (102) and the rivet hole (103) of wheel carrier (20) at the middle part of base (10), pass the interior sky (301) of cylindrical roller bearing entad or radial ball bearing (30) successively with rivet (40), rivet hole (103) back riveted on the base (10) makes wheel carrier (20) can do the rotation of 360 degree around the shaft.

2. durable cardan wheel flexibly according to claim 1 is characterized in that also available bolt of described rivet (40) or bearing pin replace.

3. durable cardan wheel flexibly according to claim 1 is characterized in that being by the interference fit connection or molding wheel carrier (20) on the outer shroud of bearing (30) at the last bonded assembly bearing (30) of described wheel carrier (20).

4. flexibly durable cardan wheel according to claim 1 is characterized in that being provided with pad (50) between the riveted face of the upper surface of described base (10) and rivet (40).

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