CN210821672U - Safety inflation-free wheel of baby carriage - Google Patents

Abstract

The utility model discloses a bassinet exempts from to aerify safe wheel, from inside to outside in proper order including wheel hub, the rim and install the tire on the rim, the tire includes the tread layer of being made by the polyurethane material and the inner wall layer of being made by the polylactic acid material, be provided with the side course layer of being made by the polylactic acid material between tread layer and the inner wall layer, inner wall layer and side course layer all are provided with a plurality of evenly distributed's shock attenuation hole along the circumference of tire, make the tire through adopting the material of two kinds of differences, and tread layer does not foam and inner wall layer foam and side course foam form integrative composite construction at the pouring in-process, not only effectively solved the elasticity that exists among the prior art not enough, it is not wear-resisting, big scheduling problem is weighed, and can also bear the pressure and stretch and contract, make it have dual shock-absorbing function, it.

Description

Safety inflation-free wheel of baby carriage

Technical Field

The utility model relates to a bassinet field, especially a bassinet exempts from to aerify safe wheel.

Background

The baby carriage has more and more extensive use at present, and the tire is a very crucial part in the baby carriage, and the tire of most baby carriages in the prior art has the advantages of complete puncture resistance, inflation prevention, high strength, light weight, durability, moderate elasticity, maintenance prevention and the like, but also has a plurality of defects: if the wheels cannot play a good buffering effect when passing through a place with uneven road surface, the shock absorption effect is poor, the shock absorption effect is not wear-resistant, the weight is large, the elasticity is insufficient, and the like, so that the vehicle body vibrates, and the comfort level of the baby carrier is seriously influenced.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a bassinet inflation-free safety wheel with good shock absorption effect, light weight and high comfort level.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a bassinet exempts from to aerify safety wheel, includes wheel hub, rim and installs from inside to outside in proper order tire on the rim, the tire includes the tread layer of making by polyurethane material and the interior wall layer of making by polylactic acid material, the tread layer with be provided with the side course of making by polylactic acid material between the interior wall layer, interior wall layer and side course are followed all be provided with a plurality of evenly distributed's shock attenuation hole in the circumference of tire.

The tire is characterized in that positioning flanges bent outwards are arranged on two sides of the rim, and the tire is clamped between the positioning flanges.

A plurality of V-shaped spokes which are uniformly distributed are arranged between the hub and the rim.

And a reflective layer is arranged on the rim.

The utility model has the advantages that: the utility model discloses an adopt two kinds of different materials of polyurethane and polylactic acid to make the tire, the tread layer does not foam and interior wall layer foam and side course foam form integrative composite construction in the pouring process moreover, not only effectively solved elasticity that exists among the prior art not enough, wear-resisting, the big scheduling problem of weight, but also can bear the weight of the pressure stretch-draw, make it have dual shock-absorbing function, inhale the shake effect and show practical safety.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is an exploded view of the present invention.

Detailed Description

Referring to fig. 1 and 2, an inflation-free safety wheel for a baby carrier sequentially comprises a hub 1, a rim 2 and a tire 3 mounted on the rim 2 from inside to outside, wherein positioning flanges 8 bent outwards are arranged on two sides of the rim 2, the tire 3 is clamped between the positioning flanges 8, the tire 3 comprises a tread layer 4 made of Polyurethane (PU) material and an inner wall layer 5 made of polylactic acid (PLA) material, a side surface layer 6 made of polylactic acid material is arranged between the tread layer 4 and the inner wall layer 5, the unfoamed body of the tread layer, the foamed body of the inner wall layer and the foamed body of the side surface layer form an integrated composite structure in the pouring process, so that the problems of insufficient elasticity, poor wear resistance, large weight and the like in the prior art are effectively solved, pressure bearing expansion and contraction can be realized, the inflation-free safety wheel has a double shock absorption function and a remarkable shock absorption effect, is practical and safe.

The inner wall layer 5 and the side surface layer 6 which are in contact with the rim 2 are respectively provided with a plurality of damping holes 7 which are uniformly distributed and do not penetrate through each other along the circumferential direction of the tire 3, and after the tire 3 is extruded from the outside, the tire has a good damping and buffering effect, is attractive in appearance and saves materials; in addition, the shock absorption holes can be through holes with shapes of circles, long strips, hearts, polygons and the like, in the embodiment, the shock absorption holes are circles, and compared with holes with other shapes, the hole walls of the circular holes are most stable and uniform in supporting effect.

A plurality of V-shaped spokes 9 which are uniformly distributed are arranged between the hub 1 and the rim 2, the hub 1 and the rim 2 are made of stainless steel, and the spokes 9 play a supporting role after the tire 3 is extruded from the outside.

Be provided with the reflector layer on the rim 2, not only can strengthen reflection of light effect, still help the illumination at night, the security performance increases.

The above embodiments do not limit the scope of the present invention, and those skilled in the art can make equivalent modifications and variations without departing from the overall concept of the present invention.

Claims (4)

1. The utility model provides a bassinet exempts from to aerify safety wheel, it includes wheel hub (1), rim (2) and installs from inside to outside in proper order tire (3) on rim (2), its characterized in that tire (3) include tread layer (4) made by the polyurethane material and inner wall layer (5) made by the polylactic acid material, tread layer (4) with be provided with side course (6) made by the polylactic acid material between inner wall layer (5), inner wall layer (5) and side course (6) are followed all be provided with a plurality of evenly distributed's shock attenuation hole (7) in the circumference of tire (3).

2. Bassinet inflation-free safety wheel as claimed in claim 1, characterized in that the rim (2) is provided with outwardly bent positioning ribs (8) on both sides, the tyre (3) being snapped between the positioning ribs (8).

3. A stroller non-inflatable safety wheel according to claim 1, characterized in that a plurality of evenly distributed "V" shaped spokes (9) are arranged between the hub (1) and the rim (2).

4. A stroller non-inflatable safety wheel according to claim 1, characterized in that a light reflecting layer is provided on the rim (2).

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