CN2285230Y - Improvement for perambulator - Google Patents

Abstract

The utility model relates to an improvement for a baby handcart. A back shaft sleeve is arranged at the back end of a bottom frame of the baby handcart. Two back wheels are arranged at both sides of the back shaft sleeve. A front joint shaft structure is connected with the front end of the bottom frame and is pivoted with two front wheels and daggling rods which extend in opposite direction with 180DEG. When the front joint shaft structure is loosened, the forward extending state of the front wheel or the daggling rods can be changed, and a resisting structure of the front joint shaft structure is blocked and positioned, so the front wheel or the daggling rods of the baby handcart are positioned in the forward extending state. The utility model is suitable for different using occasions of pushing and daggling.

Description

The improvement of baby stroller

The utility model is the improvement of relevant baby stroller, is meant a kind of tool variability function especially, is easy to stretch the stroller configuration that assembling folds and the integral structure location is firm, and the function by its changeable voltinism can make it be applicable to multiple different demand occasion.

Common on the market perambulator is of a great variety, its structure is also had nothing in common with each other, because its structure is respectively at various different demand (as: hand push, dilatory, jog in the seabeach) and be provided with, so seldom have the design of other different radical functions concurrently, just be provided with article basket holder at the most in perambulator, the sunshade drop cloth ... variation Deng accessory structure, make radical function have multiple auxiliary function concurrently, yet the increase of aforementioned various auxiliary functions, though the user can be provided facility to a certain extent, but in various main difference use occasions, still can't take into account, therefore the user still must change according to different demands, purchase different perambulators, cause the waste that is difficult to avoid.

Again, the vehicle frame of general common perambulator, it articulates the position and is engaged with bolt, nut, so itself is the tool pivot and the locating effect of not having only, so the vehicle frame of whole perambulator must have at least one structure that fastens the location, can make vehicle frame global formation location, and common people are based on the consideration and the design simplification of cost, perambulator has only an aforementioned location structure that fastens mostly, in case this fastens the slippage of structure et out of order, then not only perambulator can't be located moulding or get loose and folded, even meets accident easily.

In view of common stroller configuration has above-mentioned shortcoming, the contriver improves at this shortcoming research, and generation of the present utility model is arranged eventually.

The utility model aims to provide a kind of improvement of baby stroller, its perambulator underframe rear end is provided with a rear axle housing, rear axle housing two sides are provided with two trailing wheels, the underframe front end then is connected a front junction shaft structure, be pivoted on this front junction shaft structure and two be 180 degree subtends and extend haulage rod and front-wheels, can change the state that front-wheel or haulage rod protract after getting loose by front junction shaft structure, make the tighten structure of front junction shaft structure be fastened in the location again, make perambulator keep front-wheel or haulage rod in the location of protracting, make the different use occasions that are applicable to hand push or towing, this is a main purpose of the present utility model.

Improvement according to this kind of the utility model baby stroller, it establishes a pivot seat on rear axle housing vertical with underframe, this pivot seat top side is convexly equipped with a nose bar, the nose bar side main supporting rod that is pivoted in addition, main supporting rod is provided with the positioning seat of a slip, the positioning seat bottom surface is provided with a location trepanning, when main supporting rod is switched to parallel with nose bar, can press down positioning seat and be sleeved on nose bar with the locating bush hole, main supporting rod is combined with the fixed angle position with rear axle housing, the main supporting rod top side is connected a handle and bearing frame with knot axle construction on another, by aforementioned front junction shaft structure, last knot axle construction and positioning seat, combination between the pivot seat can make the whole location structure that forms a multiple clip of perambulator, not reason one of them get loose and produce and topple over, collapse state, avoid the situation of causing danger, this is another purpose of the utility model.

Improvement according to this kind of the utility model baby stroller, be connected bearing frame, main supporting rod, each contact surface of handle that its front junction shaft structure is connected bearing frame, haulage rod, front-wheel and underframe and last knot axle construction are provided with double wedge, by pulling of an eccentric clamp, can change the degree of tightness of each contact surface, to reach simple structure, operate simple and easy and to locate firm structure, this is the utility model purpose again.

As for the utility model detailed construction, application principle, effect and effect, then can be understood completely with reference to following adjoint illustration:

Fig. 1 is a unitary construction scheme drawing of the present utility model;

Fig. 2, Fig. 3 are action scheme drawing (), (two) that the utility model positioning seat combines with the pivot seat;

Fig. 4 is the enforcement illustration of the utility model drag function;

Fig. 5 is the enforcement illustration of the utility model hand push function;

Fig. 6 is the knot axle construction position structural representation of going up of the present utility model;

Fig. 7 is the knot axle construction position section of structure of going up of the present utility model;

Fig. 8 is the utility model collapse state scheme drawing.

Fig. 1, Fig. 2, Fig. 3 are the action scheme drawings that the utility model unitary construction scheme drawing and positioning seat combine with the pivot seat, shown in this figure, can find out clearly that structure of the present utility model mainly comprises: underframe 1, rear axle housing 2, front junction shaft structure 3, main supporting rod 4, on tie portions such as axle construction 5 and bearing frame 6; Wherein underframe 1 by a plurality of side by side and the stage casing be the crooked body of rod of corresponding expansion and form, its two end is connected rear axle housing 2 and front junction shaft structure 3 respectively, and in an end that is connected front junction shaft structure 3 two haulage rods 11 that extend relatively that are pivoted, front rod, this front rod end is provided with a front-wheel 13, two ends of rear axle housing 2 are provided with two trailing wheels 21, be convexly equipped with two pivot seats 22 on two trailing wheels, the 21 inboard rear axle housings 2, pivot seat 22 top sides protrude out a nose bar 23, front junction shaft structure 3 sides are provided with a bearing stand 31, this bearing stand 31 is provided with a plurality of jacks 32, one distolateral being hubbed on the aforementioned pivot seat 22 of main supporting rod 4, main supporting rod 4 stage casings are provided with one and can go up, the positioning seat 42 of following slippage, these positioning seat 42 bottom sides are provided with a location trepanning 43, the end in addition of main supporting rod 4 is provided with two ends that main supporting rod connecting support 41 is attached to knot axle construction 5, last knot axle construction 5 is to be arranged between two main supporting rods, 4 tops, its two end is connected two bearing frames 6 respectively and strides and establish a handle 52, two bearing frames 6 then are to be connected the jack 32 of going up bearing stand 31 on knot axle construction 5 and the front junction shaft structure 3, main supporting rod 4 is switched to the position parallel with nose bar 23 on pivot seat 22, can locate trepanning 43 with positioning seat 42 downslides is sleeved on the nose bar 23, make main supporting rod 4 and rear axle housing 2 form firm engagement, utilize the state that gets loose of front junction shaft structure 3, can make haulage rod 11 and front rod conversion fixing behind the position of lordosis, and go up knot axle construction 5 when getting loose, then can adjust the position and the main supporting rod 4 of handle 52, the angle that bearing frame is 6, by said structure and the mode that mutually combines, it is simple and easy and in conjunction with firm perambulator shelf structure to form an operation.Fig. 4, Fig. 5 are that the utility model is in the enforcement illustration of drag function and the enforcement illustration of hand push function, by diagram as can be known: the utility model can be in the space sheathed seat webbing 7 of two bearing frames 6 with underframe 1,4 standards of main supporting rod, for the bearing baby, and then utilize haulage rod 11, the mutual conversion of front rod, can make integral structure formation haulage rod 11 or front-wheel 13 different conditions the preceding, to be applicable to different use occasions such as towing or hand push.

Fig. 6, Fig. 7 is knot axle construction position structural representation and a section-drawing on the utility model, by this diagram as can be known: on tie axle construction 5 and form with the pressing plate seat 54 of axle sleeve 51 2 ends by the bundle bars 55 that an axle sleeve 51 provides in the axle sleeve 51, these axle sleeve 51 2 end sides are to be connected for handle 52, and axle sleeve 51 2 ends are provided with a lateral raised teeth 611 engagements on double wedge 53 and the bearing frame 6 end bearing frame connecting supports 61,612 double wedges 411 with main supporting rod 4 end main supporting rod connecting supports 41 of the double wedge of bearing frame connecting support 61 opposite sides mesh, main supporting rod connecting support 41 2 outsides then press from both sides again establishes two pressing plate seats 54, this pressing plate seat 54 is to combine with bundle bar 55,54 of another pressing plate seats run through the back for bundle bar 55 and are connected an eccentric clamp 541, utilization is pulled eccentric clamp 541 and is changed the position that is resisted against pressing plate seat 54, can make two pressing plate seats 54 change the pressing spacing, if two pressing plate seats 54 are to be when getting loose, the handle 52 of axle sleeve 51, bearing frame 6 and main supporting rod 4 are the state of adjustable angle, treat handle 52, bearing frame 6, main supporting rod 4 transfers to suitable angle position, then with eccentric clamp 541 pressing pressing plate seats 54, make each main supporting rod connecting support 41, bearing frame connecting support 61 forms the packing state with axle sleeve 51 2 ends, and utilize each ingear double wedge, can make the stronger anchoring strength of whole tool.

The utility model front junction shaft structure 3, its integral structure is identical with last knot axle construction 5, by getting loose of eccentric clamp, can make haulage rod 11, front rod intermodulation change its protrusive position postpone and fix, to be applicable to different use occasions.

Fig. 8 is the utility model collapse state scheme drawing, by diagram as can be known: when the utility model folds, the eccentric clamp of front junction shaft structure 3 and the last knot axle construction of only need getting loose respectively, make positioning seat 42 detach pivot seat 22 again, make underframe 1, main supporting rod 4, bearing frame 6,52 of handles form loosening state, can pressing main supporting rod 4, bearing frame 6, handle 52, make to reduce to fold volume with underframe 1 closing.

From the above mentioned as can be known, the improvement of the utility model baby stroller have really simple structure, easy to use, in conjunction with firm and be applicable to the effect of multiple different occasions.

Claims (1)

1. the improvement of a baby stroller, it comprises at least: underframe (1), rear axle housing (2), front junction shaft structure (3), main supporting rod (4), on tie portions such as axle construction (5) and bearing frame; It is characterized in that: wherein underframe (1) by a plurality of side by side and the stage casing be the crooked body of rod of corresponding expansion and form, its two end is connected rear axle housing (2) and front junction shaft structure (3) respectively; Two ends of rear axle housing (2) are provided with two trailing wheels (21), are convexly equipped with two pivot seats (22) on the inboard rear axle housings of two trailing wheels (21) (2), and pivot seat (22) top side protrudes out a nose bar (23); Front junction shaft structure (3) side is provided with a bearing stand (31), and this bearing stand (31) is provided with a plurality of jacks (32); One distolateral being hubbed on the aforementioned pivot seat (22) of main supporting rod (4), its other end are provided with two ends that a main supporting rod connecting support (41) is attached to knot axle construction (5); Last knot axle construction (5) is to be arranged between two main supporting rods (4) top, and its two end is connected two bearing frames (6) respectively and strides establishes a handle (52); Bearing frame (6) is to be connected upward to tie the jack (32) that axle construction (5) and front junction shaft structure (3) are gone up bearing stand (31).

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