CN205185713U - Shaftless juvenile tire device - Google Patents

Abstract

The utility model provides a shaftless juvenile tire device, through the guard shield, end handle of integration realize with the fixed connection of frame, include the rolling foaming child in ground, include that the frame that moves in turn, interior wheel decide frame, 2 retaining rings and a plurality of round pin that rolls outward, wherein: the frame periphery is moved in turn to the foaming child outward fixed, frame and the interior wheel of moving in turn outward decide the frame registrate the clearance in the grafting roll the round pin, the frame both sides are decided to interior wheel retaining ring has guaranteed to roll the round pin and the outer frame that moves in turn does not produce laterally offset, clamp interior wheel in guard shield both sides is decided the frame and is fixed end handle fixed connection car frame tube in interior and cross -under. This design wheel operates steadily, compares in traditional wheel that has, and simple process, the cost is lower.

Description

A kind of shaftless baby carrier wheel device

Technical field

The utility model relates to manufacturing and designing of carriage for children, is specifically a kind of shaftless baby carrier wheel device.

Background technology

Current various pushchair has been axle pattern, and namely one section of steel axle is interspersed in wheel center (also can also be designed to eccentric interting for obtaining other object), wheel with rigidity axle for core rotates and obtain and move ahead or retreat.When single wheel, the front fork of perambulator, back vent (or corresponding equal function alternative structure) press from both sides wheel in interior and fix at steel axle two ends.For avoid front fork, back fork structure (or their alternative structure) complexity and still need to guarantee that wheel operates steadily etc. aspect considered, existing market perambulator more have employed two-wheel system.When front-wheel and/or each rear flank wheel are two-wheel, the direct grafting or indirectly fix on the rigidity axle between two-wheeled of the nose-wheel well of perambulator and/or trailing wheel pipe, especially being also convenient to install damping device for baby carriage additional when indirectly fixing, at least between two trailing wheels of one or both sides, having the brake gear for trammer's manipulation toward contact arrangement.But the integral vehicle cost of two-wheel significantly increases really as mentioned above.

Summary of the invention

The utility model task is to provide one and carries out steady, the simple shaftless baby carrier wheel device of structure.

Technical solutions of the utility model: a kind of shaftless baby carrier wheel device, realized and being fixedly connected with of vehicle frame by the guard shield of integration and end handle, it is included in the foaming tire of ground surface, and it also comprises the frame that moves in turn outward, interior wheel determines frame, some rolling pin and 2 back-up rings, wherein:

Move in turn outward the fixing foaming in the periphery tire of frame;

Inside take turns acupuncture point, the periphery grafting rolling pin of determining frame, move in turn outward frame and interior take turns to determine to be reserved with between frame allow the outer frame that moves in turn to touch to paste rolling pin and the gap of rolling;

For prevention rolling pin landing and frame laterally offset of moving in turn outward, inside take turns and determine frame both sides all containing the draw-in groove being applicable to back-up ring grafting;

The two side plate holder wheel of guard shield in interior, and wears rivet clasp calmly with the interior horizontal tube structure determining frame inner circumferential of taking turns.

The assembling of the design's wheel assembly:

1, foaming tire is fixed on outer frame periphery of moving in turn (also can be move in turn outside frame outer peripheral face directly foam and obtain the foaming tire of integration and the frame that moves in turn outward);

2, in the outer frame fit that moves in turn of order, wheel determines frame (frame inner circumferential diameter determines frame outer circumference diameter slightly larger than interior wheel owing to moving in turn, and move in turn frame and interior wheel of now outer determines there is appropriate gap between frame) outward;

3, in each acupuncture point, insert rolling pin (some acupuncture points are determined frame periphery be uniformly distributed interior wheel, and rolling pin can flexible rotating in acupuncture point, and the lateral surface of each rolling pin touches the inner peripheral surface pasting the outer frame that moves in turn, and the frame that moves in turn can rotate with rolling pin and rotate) outward;

4, add grafting back-up ring in the interior left and right sides of determining frame of taking turns (interior wheel determines frame both sides all containing being applicable to the draw-in groove of back-up ring grafting; Both sides back-up ring press from both sides all rolling pin and the surface of the frame that moves in turn outward in interior, completely eliminate rolling pin from acupuncture point landing may and prevent outer move in turn frame mutually internally wheel determine the laterally offset of frame);

5, between two side wall panels wheel being placed in guard shield, with rivet cross-under two side wall panels and interiorly take turns the transverse tube (transverse tube has the centre hole for cross-under) determining frame inner circumferential.

6, (because end handle is originally integrated with guard shield) makes end handle and frame for baby cart pipe be connected and fixed.

So far wheel and car load have realized installing.

The operation logic of the design's wheel assembly: due to the existence of vehicle weight (comprising the weight of infant in car), makes the foaming tire of wheel produce pressure to ground; When artificial outside force puts on perambulator, its propulsive effort reaches end handle from vehicle frame (pipe), reach guard shield two side wall panels, reach interior wheel determines frame; Owing to moving in turn outward, frame and interior wheel determine to be reserved with gap between frame, be plugged in the interior rolling pin of determining acupuncture point, frame periphery of taking turns and touch the outer frame inner circumferential that moves in turn of subsides all the time, rolling pin under vehicle weight and outside force double action will from rolling, and drive the outer frame that moves in turn to determine frame rolling relative to interior wheel, be fixed on the foaming tire of outer frame periphery of moving in turn in ground surface.Namely take turns the artificial outside force determining frame in arriving and will drive vehicle wheel rotation, thus vehicle realizes moving ahead or retreating.

In vehicle operating, rolling pin end face may touch interiorly takes turns the back-up ring determining frame both sides, the lateral edge of the frame that moves in turn outward may time and in scrape along wheel determine frame both sides back-up ring, but all can not produce and exceed the noise that perambulator normally runs the sound, on vehicle movement also without affecting.

In said circumstances, inside take turns determine frame inner circumferential containing carry transverse tube extend still to some extent outside back-up ring, its extension is spaced guard shield two side wall panels with foaming tire, to move in turn frame outward, and the wheel in vehicle operating can not touch guard shield two side wall panels all the time, and namely wheel and guard shield are without friction.

The good effect of the design: the frame that moves in turn outward take turns with interior the fit of determining frame and be relatively turnablely flexibly connected relation, guard shield is all reliable and stable with the interior relation that is fixedly connected with of determining frame (wheel) of taking turns, and inside takes turns the laterally offset determined frame both sides back-up ring and effectively can stop rolling pin and the frame that moves in turn outward.Have axle single wheel compared to traditional, this device still avoids the numerous and diverse of its frame tube (front fork, back vent) manufacturing process; Have axle dual wheels compared to traditional, the design's device obviously significantly reduces infrastructure cost.The design's wheel steering is flexible, and operate steadily without making an uproar, integral structure is novel, and assembly work is also comparatively saved.

Accompanying drawing explanation

Fig. 1 a is that the interior wheel of the design determines frame audio-visual picture, and Fig. 1 b is the A-A position cutaway view of Fig. 1 a, and Fig. 1 c is the planar view cuing open position in Fig. 1 b.

Fig. 2 is the foaming tire audio-visual picture of the design's wheel.

Fig. 3 is the outer frame audio-visual picture that moves in turn of the design's wheel.

Fig. 4 is the back-up ring audio-visual picture of the design's wheel.

Fig. 5 a is guard shield and the end shank member audio-visual picture of integration, and Fig. 5 b is the cutaway view of Fig. 5 a part, and Fig. 5 c is different from the integrated guard shield of Fig. 5 a and the cutaway view of end shank member.

Fig. 6 a is the exploded view of the design's wheel, and Fig. 6 b is the assembly drawing of the design's wheel, and Fig. 6 c is B-B position cutaway view in Fig. 6 b (locally, not containing end handle), and Fig. 6 d is the planar view of Fig. 6 c midship section, and Fig. 6 e is the dispersion enlarged drawing of Fig. 6 d structure.

Fig. 7 is the design's wheel and the assembly drawing of integrated guard shield and end shank member.

Fig. 8 is that the interior wheel of the design with Different Acupoint form determines frame audio-visual picture.

Detailed description of the invention

Embodiment.See Fig. 6 a-b: the design's wheel comprises interior wheel to be determined frame (2) and some rolling pin (3), to move in turn the wheel that frame (4), foaming tire (5) and 2 back-up rings (6) form outward, and by the end handle (11) of integration and the connection of guard shield (12) realization and frame tube, see Fig. 5 a and Fig. 7.

See Fig. 6 a-b and Fig. 6 e: foaming tire (5) is fixed on outer frame (4) periphery of moving in turn, and the inner circumferential diameter of the frame (4) that moves in turn outward determines frame (2) external diameter slightly larger than interior wheel.When move in turn outward frame (4) with interior take turns determine frame (2) fit after, frame (4) inner circumferential that moves in turn outward and interior wheel determine to there is appropriate gap between frame (2) periphery.

See Fig. 1 a-c and Fig. 6 a: interior wheel is determined frame (2) periphery and is furnished with the acupuncture point (22) of inserting for rolling pin (3), acupuncture point (22) entrance can be the major arc of a circumference, there is side opening at acupuncture point (22), a part for rolling pin (3) entity determines frame (2) circumferential lateral surface beyond interior wheel, but rolling pin (3) can not be determined frame (2) side opening and deviates from from interior wheel, and rolling pin (3) can be rolled in acupuncture point (22).

See Fig. 6 a-b: product practical set operation first wheel in the frame that moves in turn (4) fit is determined frame (2) outward, take turns each acupuncture point (22) of determine frame (2), moving in turn between frame (4) outward in each rolling pin (3) being inserted, move in turn outward frame (4) and the interior gap of determining between frame (2) of taking turns just make rolling pin (3) appropriateness push against frame (4) inner circumferential that moves in turn outward again.Draw-in groove (23) the grafting back-up ring (6) determining frame (2) both sides is taken turns by interior, namely back-up ring (6) is positioned at wheel both sides, acupuncture point (22) two ends are closed by back-up ring (6), thus rolling pin (3) is positioned at the outer frame (4) and taking turns of moving in turn determines between frame (2), between left and right sides back-up ring (6).

See Fig. 1 a-c: interior wheel is determined frame (2) and is loaded with transverse tube (21), and transverse tube (21) is containing centre hole (211).See end handle (11) and guard shield (12) part of integration in Fig. 5 a-b, the wallboard (121) of guard shield (12) both sides is loaded with macropore (1211,1212).In the design's wheel and vehicle frame are assembled, when wheel is placed between guard shield two side wall panels (121), make rivet successively cross-under guard shield one sidewall paneling (121) macropore (1211), interior take turns determine frame (2) transverse tube (21) centre hole (211), guard shield (12) opposite side wallboard macropore (1212), thus realize the reliable connection of wheel and integrated guard shield (12), end handle (11).

See Fig. 7, the two side wall panels (121) of guard shield (12) is determined frame (2) (i.e. wheel) and is worn riveting with two-point form with interior wheel and directly fix.

See Fig. 6 a-b: back-up ring (6) external diameter is greater than outer frame (4) internal diameter that moves in turn, the frame (4) that moves in turn so outer is determined frame (2) both sides back-up ring (6) limit by interior wheel, can not produce and take turns relative to interior the laterally offset determining frame (2).

See Fig. 1 a and Fig. 6 b, obviously, the interior wheel that transverse tube (21) length is greater than its place determines frame (2) thickness, the end part interval of transverse tube (21) guard shield two side wall panels (121) and foaming tire (5), to move in turn frame (4) outward, operating wheel can not touch guard shield two side wall panels (121) all the time, and namely wheel and guard shield are without friction.

See Fig. 6 a and Fig. 5 c, when perambulator is carried out by artificial external force, the external force imposing on vehicle frame (pipe) reaches end handle (11), reach guard shield wallboard (121), reach interior wheel determines frame (2), because the frame that moves in turn outward (4) inner circumferential exists friction force to against wheel faced by rolling pin (3) and ground, make rolling pin (3) rotation and frame (4) rotation of moving in turn outward, namely perambulator is moved ahead or is retreated.

This example has enforceable one's best quality.

Also be worth going on to say:

See Fig. 2-3 and Fig. 6 e, foaming tire (5) constructs with the faying face of the frame (4) that moves in turn outward, similar with the counter structure having wheel at present.

Back-up ring (6) shown in Fig. 4 can be thin type spring steel, also can be the moulding of allowing appropriate deformation.

If for can better prevent the outer frame (4) that moves in turn to take turns with interior the consideration determined frame (2) and rub, the hollow cross sectional shape in acupuncture point (22) can be allowed to be that even minor arc circle is scarce for semicircle.

Rolling pin (3) can be determined frame (2) periphery and is uniformly distributed interior wheel.For rationally tackle and distribute stressed, strengthen outer frame (4) operational flexibility that moves in turn and consider, interior, rolling pin (3) also can take turns that the top of determining frame (2) periphery is comparatively dredged, the closeer distribution in bottom.

Inside take turns the acupuncture point (22) of determining frame (2) and can only hold single rolling pin, if but for strengthening anti deformational force, the consideration of going slick property of increase of outer frame (4) of moving in turn, can allow that in each acupuncture point many rolling pin (3) arrange, as 3 rolling pin (3) platoons, see Fig. 8.From certain meaning, even can cancel acupuncture point (22) and arrange, and determine frame (2) periphery be abound with rolling pin (3) interior wheel, wheel still can operate.

Above-mentioned interior wheel determines frame (2), the connection of guard shield (12) relies on rivet cross-under to fix.See Fig. 5 c: guard shield (12) wallboard (121) inner side is containing carrying stud (122), utilize the appropriate deformation of wallboard (121), stud (122) is snapped in and interiorly takes turns transverse tube (21) centre hole (211) determining frame (2), interior wheel can be realized equally and determine being connected and fixed of frame (2) and guard shield (12), and save man-hour, tailored appearance.

Perambulator moving velocity is the low middling walking speed of adult usually, electric children vehicle running velocity there will be adult's walking speed of short distance 2-3 in short-term times of left and right, they compared to can long-distance long time run the adult vehicle such as self-propelled vehicle, storage battery car, bicycle, all belong to quite slow speed.And perambulator and take advantage of that to carry the total weight of infant comparatively limited, so plastic also or the interior wheel of metal piece determine frame (2), to move in turn frame (4) outward, should possess good anti-deformation intensity; Handle of the integrated end (11) of the design, guard shield (12) are though part is generally the moulding of suitable material, and it still can ensure the use reliably and with long-term of perambulator.

Transverse tube (21) for being connected and fixed is positioned to take turns determines frame (2) inner circumferential, has both avoided the outer frame that moves in turn (4) be rotating, also for the ornamental trimming of wheel center blank space provides fixed bit.

Claims (1)

1. a shaftless baby carrier wheel device, realized and being fixedly connected with of vehicle frame by the guard shield of integration and end handle, it is included in the foaming tire of ground surface, it is characterized in that: the frame that moves in turn outside also comprising, interior wheel determine frame, some rolling pin and 2 back-up rings, wherein: the fixing foaming in the periphery tire of the frame that moves in turn outward; Move in turn outward frame and interior take turns to determine to be reserved with between frame allow the outer frame that moves in turn to touch to paste rolling pin and the gap of rolling; For prevention rolling pin landing and frame laterally offset of moving in turn outward, inside take turns and determine frame both sides all containing the draw-in groove being applicable to back-up ring grafting; The two side plate holder wheel of guard shield in interior, and wears rivet clasp calmly with the interior horizontal tube structure determining frame inner circumferential of taking turns.