CN2179285Y - Front wheel structure of pram - Google Patents

Abstract

The utility model relates to a front wheel structure of prams. The front wheel structure of prams is assembled on the lower end of the front pram rack of a pram body and is composed of a pram rack firmware, a fixed wheel seat, an elastic element, an actuating seat, etc.; the front wheel structure of prams is positioned on left and right by a transverse rod orderly penetrating two front wheels; the pram rack firmware is a cylinder which is fixedly connected with the front pram rack on the upper end and presents inversed L-shaped; the upper end of the front pram rack is breadthwise provided with a flexibility elastic sheet; the lower part of the elastic sheet is connected with a direction fixing block; a penetrating section is formed on the lower section of the firmware; the lower section of the penetrating section is provide with a pivoted section which is provide with a buckle penetrating edge; the fixed wheel seat is a sleeve barrel body whose one end is provided with a sleeve penetrating hole and other end is concavely provided with a containing chamber; the upper section of the outer wall of the sleeve penetrating hole is provided with two symmetrical convex ears; the opposite position of the two outer wall of the containing chamber is provided with a flange which is provide with a long perforating hole.

Description

Front wheel structure of pram

The utility model system is relevant for wheel construction before a kind of perambulator.

General perambulator integral structure (seeing also Fig. 1), tool is articulated prior to section among the front vehicle frame 1 by back vehicle frame 2, is connected to the two lower section with a connecting rod 12 2 end spaies again, and each group of vehicle frame 1,2 lower ends is established with front and rear wheel group 3,4 before and after it;

Wherein, should before wheels 3(see also Fig. 2) cording is fixed by end under the solid bar 31 of vehicle frame and the front vehicle frame 1, again in regular turn with solid wheel seat 32,33 combinations of direction permanent seat, and the end in addition of solid wheel seat 32 can be inserted in for elasticity element 34 and start seat 35, wears to pass through and sets firmly to provide two front-wheels 36 to use cross bar 37;

The solid bar 31 of this vehicle frame, it is fixing that its upper end provides front vehicle frame 1 to plug, and epimere sidewall tool establishes the block 311 with the T font, and form a section of wearing 312 in hypomere, holds appropriate location to establish with a latch closure groove 3121 under the section of wearing 312;

Gu wheel seat 32, it is the sleeve body that generally is 8 words, it is offered on one side and wears hole 321, wearing of the solid bar 31 of vehicle frame is provided, and this wears wall within the hole 321 and establishes an elastic strip body 322 with protruding button piece 3221, its protruding button piece 3221 latch closure grooves 3121 proper and solid bar 31 sections of wearing 312 of vehicle frame fasten, make the solid bar 31 of vehicle frame be pivoted in wearing hole 321 inner formation, and establish a section and generally be the prominent plate 323 that T font and left and right sides offer chute 3231 in wearing wall tool outside the hole 321, establish with the protruding grain in oblique angle in the prominent plate 323 and the stage casing, wall junction of solid wheel seat 32, and in the default room 324 of solid wheel seat 32 another sides, to hold elastic element 34 and start seat 35, wall stays and establishes a flat limit 3241 within the room 324 again, in addition wall is got correspondence position and is established to have the bead 3243 of long perforation 3242 outside the room 324, links front-wheel 36 for cross bar 37 is passed through out by long perforation 3242;

Direction permanent seat 33, be that the center is opened pushing away of T shape hole 331 and established body, thereafter the section tool is established a push pedal 332 among the wall, and front face two lateral margin lower sections are established with the prominent grain 333 in oblique angle, 33 of this direction permanent seats are coated on prominent plate 323 outsides of above-mentioned solid wheel seat 32, and utilize its slippage and vehicle frame the block 311 chimeric or disengagings of bar 31 admittedly down on chute 3231;

Start seat 35, it establishes projection 3511 moulding by tool main body 351 spherical in shape is prominent up and down, and main body 351 centers cross tool with a perforation 352, passes through for wearing of cross bar 37, and cuts in the table edge of main body 351 that to establish a plane 353 identical with the flat limit 3241 of room 324.

Establish wheels before via above-mentioned member group, following shortcoming arranged unavoidably in making combination:

1, commonly use before the component parts of wheels numerous, must offer a plurality of moulds during manufacturing, cause the waste of material, and then improve manufacturing cost, increase manufacturer's burden.

2, commonly use before the manufacturing cost that improved of wheels part directly react on and rise on the product price, thereby reduction customer's purchase intention causes product to lose competitiveness.

3, commonly use before the part of wheels numerous and complicated, make the upright time of group increase relatively, not only reduce work efficiency, and increase human cost.

This creator system is engaged in the dealer who makes perambulator for many years, and it is in view of above-mentioned shortcoming, and with its practical experience for many years, improvement design goes out the utility model meticulously, and the phase reaches better use effect with more practical structure.

The main purpose of the utility model, it is simpler and easy, fast and can reach wheel construction before the perambulator of better use effect to be to provide a kind of part more to simplify, make up.

According to wheel construction before a kind of perambulator of the present utility model, it is mounted on vehicle frame lower end before the car body, and tool is by vehicle frame firmware, solid wheel seat, compositions such as elastic element and start seat, and use a cross bar and run through in regular turn and will locate about two front-wheels;

It is characterized in that:

The vehicle frame firmware, connect solid front vehicle frame on lying in and generally be down L shaped cylinder, its upper end is horizontally set with the flexible flexure strip of a tool, and this flexure strip below then is connected with a direction fixed block, under its firmware the section then form the section of wearing, under the section of wearing the end tool establish with one have wear the button section of being pivoted of the edge;

Gu wheel seat, be to open on one side to wear the hole, another side is arranged with the sleeve body of room, and this bottom that wears the hole then is convexly equipped with one and wears button hole, and wear outside the hole wall epimere place tool and establish with two pairs and be referred to as lug, establish to have the bead of long perforation in two side outer wall relative positions of room in addition.

Relevant for the architectural feature and the technology contents of the utility model, cooperate with diagram now to be illustrated in the back:

Fig. 1 is the body construction scheme drawing of general perambulator.

Fig. 2 is for commonly using the three-dimensional exploded view of front wheel set structure.

Fig. 3 is the assembly three-dimensional exploded view of wheels before the utility model.

Fig. 4 is the block position cut-away view of wheels before the utility model.

Fig. 5 A Fig. 5 B is the illustrative view of the utility model.

See also Fig. 3,4, wheels 5 are to be mounted on vehicle frame 1 lower end before the car body before the utility model, are made up of institutes such as vehicle frame firmware 51, solid wheel seat 52, elastic element 54 and start seats 55, and use a cross bar 58 and run through in regular turn two front-wheels about 57 are located;

Vehicle frame solid 51, connect solid front vehicle frame 1 on lying in and generally be down L shaped cylinder, its upper end is horizontally set with the flexible flexure strip of a tool 511, set firmly a block 512 in these flexure strip 511 tops, and Fang Ze is connected with a direction fixed block 513 under the flexure strip 511, section then forms a section of wearing 514 under its vehicle frame firmware 51, and end is provided with one and has and wear the section of being pivoted 5141 of detaining edge 5142 under the section of wearing;

Gu wheel seat 52, be to open on one side to wear hole 521, another side is arranged with the sleeve body of room 53, this bottom that wears hole 521 then is convexly equipped with one and wears button hole 5211, and wear outside the hole 521 wall epimere place tool and establish with two pairs and be referred to as lug 522, establish to have the bead 56 of long perforation 561 in two side outer wall relative positions of room 53 in addition;

Start seat 55 lies in the cylinder that the center is worn tool one horizontal perforation 551;

Group is established when implementing, what the section of wearing 514 that at first will link vehicle frame firmware 51 lower ends of front vehicle frame 1 was worn the solid wheel seat 52 of injection from top to bottom wears 521 inside, hole, button hole 5211 sections of the being pivoted 5141 identical embeddings proper and vehicle frame firmware 51 sections of wearing 514 of wearing that wear 521 belows, hole this moment are held, and vehicle frame firmware 51 is pivoted in wearing hole 521 inner formation; Then elastic element 54 is pushed room 53 inside, and the start cover for seat is located at elastic element 54 belows, runs through by long perforation 561 with cross bar 58 at last, and establish for 57 groups, then finish the program of combination with another front-wheel.

Use when implementing (seeing also Fig. 5), when the flexure strip 511 of the utility model vehicle frame firmware 51 is in horizontality and direction fixed block 513 and is embedded in the breach 523 of solid wheel seat 52 2 lugs 522 centres, just but fixing vehicle wheel makes it to be difficult for producing the direction of rotating and keeping car body to travel and fixes (shown in Fig. 5 A), when changing direct of travel when desiring wheel can be rotated freely, the flexure strip 511 of vehicle frame firmware 51 up need only be pulled open, and allow direction fixed block 513 break away from breach 523, and utilize block 512 that the direction fixed block 513 of flexure strip 511 is blocked to make not reason elastic returning and make direction fixed block 513 chimeric with breach 523 once more of flexure strip 511, can make vehicle frame firmware 51 and the solid wheel seat 52 normal released states of protecting.

Via above Components Analysis and group if with implementation as can be known, the utlity model has following advantage:

1, the number of components that is used in the utility model front wheel set structure is commonly used product and is relatively reduced, and can save in a large number material, relatively lowers manufacturing cost, reduces manufacturer's burden.

2, the part manufacturing cost that is lowered in the utility model front wheel set structure, but reactor product prices, lifting consumer's purchase intention, the competitiveness of increase product.

3, the number of components that is used in the utility model front wheel set structure is few, simple structure, and assembling, dismounting not only can promote operating efficiency, and can save in a large number human cost fast.

Claims (1)

1, wheel construction before a kind of perambulator, it is mounted on vehicle frame lower end before the car body, and tool is made up of vehicle frame firmware, solid wheel seat, elastic element and start seat, and uses a cross bar and run through in regular turn and will locate about two front-wheels;

It is characterized in that:

The vehicle frame firmware, connect solid front vehicle frame on lying in and generally be down L shaped cylinder, its upper end is horizontally set with the flexible flexure strip of a tool, and this flexure strip below then is connected with a direction fixed block, under its firmware the section then form the section of wearing, under the section of wearing the end tool establish with one have wear the button section of being pivoted of the edge;

Gu wheel seat, be to open on one side to wear the hole, another side is arranged with the sleeve body of room, and this bottom that wears the hole then is convexly equipped with one and wears button hole, and wear outside the hole wall epimere place tool and establish with two pairs and be referred to as lug, establish to have the bead of long perforation in two side outer wall relative positions of room in addition.

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