CN205185724U - There is not shaft type juvenile tire - Google Patents

Abstract

The utility model provides a there is not shaft type juvenile tire, through the guard shield, end handle of integration realize with the fixed connection of frame, include the rolling foaming child in ground, decide frame, retaining ring and a plurality of roll round pin including the frame that moves in turn, interior wheel outward, can also include that 1 independent wheel covers, 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 retaining ring of frame both sides, former lid or independent wheel lid are decided to interior wheel, and 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

Technical field

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

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 frame for baby cart (pipe), back vent (or corresponding roughly the same 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 of structure.

Technical solutions of the utility model: a kind of shaftless baby carrier wheel, 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, comprise the outer frame that moves in turn, interior wheel determine frame, back-up ring and some rolling pin, 1 independent wheel cap can also be comprised, wherein: the fixing foaming in the periphery tire of the frame that moves in turn outward; 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; Inside take turns the inner circumferential of determining frame and contain the transverse tube carried for connecting guard shield; For prevention rolling pin landing and frame laterally offset of moving in turn outward, inside take turns the side of determining frame and be applicable to additional grafting back-up ring, opposite side is containing carrying former lid structure or being applicable to fixing independent wheel cap.

The wallboard folder wheel of guard shield both sides is in interior and determine frame be fixedly connected with interior wheel.

The assembling of the design's wheel assembly:

1, interior wheel determines the situation that frame side adds fixing independent wheel cap:

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. the outer frame that moves in turn of order is sleeved on interior wheel and 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. (because interior wheel determines frame side not containing former lid structure) determines the additional fixing independent wheel cap in frame side interior wheel, add grafting back-up ring by the interior notch determining frame opposite side of taking turns (back-up ring internal diameter is not less than interior wheel and determines frame internal diameter, and the transverse tube that namely, wheel determines frame inner circumferential does not hinder the assembling of back-up ring; Independent wheel cap and back-up ring press from both sides all rolling pin and the frame surface 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 center macropore determining frame inner circumferential;

6. (because end handle is originally integrated with guard shield) makes end handle be connected with frame for baby cart pipe, and so far wheel and car load have realized installing.

2, interior wheel determines frame side originally containing the situation of carrying former lid structure:

Exempt the independent wheel cap additional fixing (namely the function of independent wheel cap is substituted by former lid structure) in above-mentioned assembling process, all the other are unchanged.

The operation logic of the design's wheel assembly: vehicle weight (comprising the weight of infant in car) makes wheel foaming tire produce pressure to ground; When perambulator is subject to artificial additional outside force, this 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, under vehicle weight and outside force double action, now rolling pin 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, take turns the artificial additional outside force determining frame in namely arriving and will drive vehicle wheel rotation, thus vehicle realize moving ahead or retreating.

In vehicle operating, rolling pin end face may touch interiorly takes turns the back-up ring determining frame side, independent wheel cap or former lid structure, but can not landing in acupuncture point; Move in turn outward frame side inward flange may time and dab the interior back-up ring determining frame side, independent wheel cap or the former lid structure of taking turns, but can not produce and exceed the noise that perambulator normally runs the sound, on vehicle movement also without impact.

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; Inside take turns the laterally offset that the back-up ring determining frame two sides, former lid or independent wheel cap 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 vehicle frame (front fork tube, back breeches pipe) 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-b is that side contains and carries the interior wheel of former lid structure and determine frame left and right side view respectively.

Fig. 2 is that the interior wheel not containing former lid structure of the design determines frame audio-visual picture.

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

Fig. 4 a is guard shield and the end shank member audio-visual picture of integration, and Fig. 4 b-c is guard shield and the end shank member cutaway view of distinguishing integration.

Fig. 5 a-b is the left and right side view of independent wheel cap respectively.

Fig. 6 a is the audio-visual picture of the design's wheel, and Fig. 6 b is a kind of exploded view of the design's wheel, and Fig. 6 c is the design's wheel and the assembly drawing of handle of the integrated end, guard shield.

Fig. 7 a is the audio-visual picture (locally, omitting end handle structure) that in Fig. 6 c, A-A cuts open a body, and Fig. 7 b is the planar view of Fig. 7 a midship section, and Fig. 7 c is the dispersion enlarged drawing of Fig. 7 b structure.

Detailed description of the invention

Embodiment 1.See Fig. 6 b-c: the design's wheel, vehicle frame (pipe) is fixedly connected on by the end handle (11) of integration and guard shield (12), wheel comprise interior take turns determine frame (2) (see Fig. 2), some rolling pin (3), outward move in turn frame (4), foaming tire (5), 1 independent wheel cap (6), 1 back-up ring (7), wherein, wheel determines the side of frame (2) containing draw-in groove (25) structure of carrying for back-up ring (7) grafting, and opposite side is applicable to making to be screwed independent wheel cap (6).

See Fig. 6 a-b and Fig. 3: 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. 2: 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 b-c and Fig. 4 a-b: product practical set operation is first determined frame (2) (see Fig. 2) by wheel in the frame that moves in turn outward (4) fit, 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.Make back-up ring (7) be plugged in again and interiorly take turns the draw-in groove (25) determining frame (2) side, by screw and aperture (23), aperture (61) independent wheel cap (6) is fixed on and interiorly takes turns the opposite side determining frame (2), therefore acupuncture point (22) two ends are closed by independent wheel cap (6) and back-up ring (7), make rolling pin (3) be positioned at the outer frame (4) and taking turns of moving in turn and determine between frame (2), between independent wheel cap (6) and back-up ring (7).

See Fig. 2: interior wheel determines frame (2) inner circumferential containing being loaded with transverse tube (24), and transverse tube (24) center is macropore (241).See Fig. 5 a-b: independent wheel cap (6) is loaded with macropore (62).See end handle (11) and guard shield (12) part of integration in Fig. 7 c and Fig. 4 a-b, guard shield (12) two side wall panels (121) is loaded with macropore (1211,1212).The design's wheel is in car load assembly, when wheel is placed between guard shield two side wall panels (121), make rivet successively the macropore (1212) of cross-under guard shield one sidewall paneling (121), independent wheel cap (6) macropore (62), interior take turns determine frame (2) macropore (241), guard shield (12) opposite side (namely, wheel determines the corresponding side that frame (2) is loaded with draw-in groove (25)) wallboard macropore (1211), thus achieve the reliable connection of wheel and integrated guard shield (12), end handle (11).

From upper, independent wheel cap (6) takes turns with interior the combination determining frame (2), does not obtain by means of only aperture (61,23) by screw, is yet obtained by macropore (62,241).

More than, back-up ring (7) internal diameter determines frame (2) internal diameter slightly larger than interior wheel, takes turns the transverse tube (24) determining frame (2) inner circumferential and do not hinder back-up ring (7) to take turns interior the grafting assembling determined in frame (2) draw-in groove (25) namely.

In said circumstances, the local pulvinulus (63) that independent wheel cap (6) outside carries, at the transverse tube (24) determining also to extend to some extent outside frame (2) side containing the interior wheel of draw-in groove (25) side, be spaced guard shield two side wall panels (121) with 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 (12) are without rubbing.

See Fig. 5 a-b, Fig. 7 b-c and Fig. 6 a-c: independent wheel cap (6) external diameter is slightly larger than the frame that moves in turn outward (4) internal diameter, back-up ring (7) external diameter is slightly larger than the frame that moves in turn outward (4) internal diameter, the frame (4) that moves in turn so outer interiorly takes turns the independent wheel cap (6) of determining frame (2) both sides and back-up ring (7) limit by being fixed on, and can not produce and take turns relative to interior the laterally offset determining frame (2).

See Fig. 6 b-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.

Embodiment 2.See Fig. 1 a-b: interior wheel determines a side of frame (2) containing carrying former lid (21) structure, the independent wheel cap (6) in Yi Yuangai (21) structure alternate embodiment 1.Now transverse tube (24) still extends to some extent outside Yuan Gai (21) outside, with interval guard shield wallboard (121) and former lid (21), makes them in vehicle wheel rotation, not produce friction.Remaining with example 1.

Under the prerequisite that effect is suitable, owing to eliminating independent wheel cap (6) and assembly process thereof.So the present embodiment comparatively example 1 optimize to some extent.

Also be worth going on to say:

Above-mentioned interior wheel determine frame (2), independent wheel cap (6), guard shield (12) connection rely on rivet cross-under to fix.See Fig. 4 c: guard shield (12) wallboard (121) inner side is containing carrying stud (122), by plasticity wallboard (121) can appropriate deformation, make stud (122) snap in interior wheel and determine the transverse tube macropore (241) of frame (2) and the macropore (62) of independent wheel cap (6), interior wheel can be realized equally and determine frame (2), independent wheel cap (6), being reliably fixedly connected with of guard shield (12), and save man-hour, tailored appearance.

See Fig. 3 and Fig. 6 b, Fig. 7 b-c, 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.

If for better preventing 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 wheel, rolling pin (3) also can determine that frame (2) top, periphery is comparatively dredged, the closeer distribution in bottom.

The moving velocity of perambulator 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.

Claims (1)

1. a shaftless baby carrier wheel, 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: also comprise the frame that moves in turn outward, interior wheel determine frame, back-up ring and some rolling pin, 1 independent wheel cap can also be comprised, wherein:

1. the fixing foaming in the periphery tire of the outer frame that moves in turn;

2. in, wheel determine acupuncture point, the periphery grafting rolling pin of frame, and move in turn outward frame and interior wheel are determined to be reserved with between frame the frame that allows to move in turn outward and touched and paste rolling pin and the gap of rolling;

3. in, wheel determines the inner circumferential of frame containing the transverse tube carried for connecting guard shield;

4. be prevention rolling pin landing and frame laterally offset of moving in turn outward, inside take turns the side of determining frame and be applicable to additional grafting back-up ring, opposite side is containing carrying former lid structure or being applicable to fixing independent wheel cap.