CN202508244U

CN202508244U - Quick foldable tread car

Info

Publication number: CN202508244U
Application number: CN2012201168294U
Authority: CN
Inventors: 叶跃明
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-26
Filing date: 2012-03-26
Publication date: 2012-10-31
Anticipated expiration: 2022-03-26

Abstract

The utility model relates to a quick foldable tread car which comprises a car frame, a front fork, a telescopic vertical rod, a handle, a front wheel, back wheels, a propeller strut, a tread plate, a rack gear type driving device and a brake device. Two ends of the top of the vertical rod are respectively connected with the handle and the front fork, the front fork is connected with the front wheel, the propeller strut is sleeved on the front fork, the other end of the propeller strut is connected with the front end of the car frame, the two back wheels are arranged on two sides of the rear end of the car frame, the driving device is a rack gear transmission mechanism and comprises an arc rack positioned below the tread plate, a small gear which is in shaft connection on the car frame in front of the back wheels and meshed with the arc rack, a large gear which is coaxial with the small gear and a middle gear meshed with the large gear, the middle gear is coaxial with the back wheels, the tread plate is hinged on the car frame, the tread plate is connected with the car frame through a return spring arranged at the front portion of the tread plate, a support plate is connected with the tail of the car frame, a support wheel is arranged at the tail end of the support plate, a foldable hinge mechanism with a lock device is arranged between the car frame and the propeller strut, and a location device is positioned between the handle and the telescopic vertical rod.

Description

Fast folding formula velocipede

Technical field

The utility model belongs to the recreation and body-building bicycle, specifically a kind of fast folding formula velocipede.

Background technology

As everyone knows, the section of the having time is in amusement and recreation places such as streets and lanes, parks; All can see the adult; Child is playing a kind of Kickboard Scooter of being made up of vehicle frame, handle, front fork, front-wheel, trailing wheel and brake, and it is compared with common slide plate is forwardly to have increased may command front-wheel steering handle, " tap " that just is commonly called as; With bicycle than then having lacked actuating device and seat cushion, and the vehicle body pedal is very low.During operation, people's a pin steps down on the vehicle frame pedal, and the another pin is pedaled ground every now and then; Produce thrust forward, as sliding forward of slide plate, it is than the easy control direction of slide plate; Be difficult for wrestling, so the section of the having time receives liking of people, but also some weak point very much: the one, can only single the feet step on the ground forward; The athletic posture of two pin is fixing dull, the amount of exercise overbalance; The 2nd, each wheel is difficult for keeping one's balance before and after having only, easily rollover; The 3rd, slide slowly, continuation is poor.

Summary of the invention

In order to overcome above-mentioned shortcoming, the utility model provide a kind of keep easy, the double-legged athletic posture of vehicle body balance identical, slide the fast folding formula velocipede that safety speed is fast, collection is easy to carry.

The technical scheme that realizes the utility model purpose is to adopt: comprise the structure of vehicle frame, front fork, vertical rod, handle, front and back wheel, Shears, pedal, actuating device and brake gear, vertical rod is made as telescopic structure, and is convenient retracted; Handle is located at the vertical rod top, and the vertical rod bottom links to each other with front fork, and Shears is sleeved on the front fork; Front-wheel is contained on the front fork, and the free end of Shears is connected with the front end of vehicle frame, and two trailing wheels are located at the both sides, rear end of vehicle frame; Actuating device is a rack and-pinion mechanism, it comprise the arc-shaped rack that is connected in pedal below, with axle be connected trailing wheel front and arc-shaped rack ingear miniature gears on the vehicle frame, with the coaxial big gear wheel of miniature gears, and big gear wheel ingear middle gear, middle gear and the coaxial setting of trailing wheel; Pedal is hinged on vehicle frame, and the front portion is provided with spring and links to each other with vehicle frame in order to reply the position, also is connected with stay bearing plate at the vehicle frame afterbody; The stay bearing plate end is provided with support wheel; When being used to prevent to trample firmly center of gravity partially after, turn over behind the car, between vehicle frame and Shears, be provided with collapsible hinge mechanism; This hinge mechanism also is provided with latching system; So that portable carry is conveniently deposited and carried to retraction volume, be provided with registration device between telescopic vertical rod internal and external casing, handle and vertical rod, but at high speed is easy to and mounting or dismounting flexible;

Registration device in above-mentioned can be made up of with " U " shape spring the card post, and " U " shape spring opens two ends, and an end suppresses on tube wall, and the other end suppresses the rear end at the card post.

Latching system in above-mentioned can be made up of drag hook and extension spring, and drag hook slides up and down and is arranged on the Shears, and extension spring one end links to each other with drag hook, and the other end links to each other with the Fast Activities snap close hinge of hinge mechanism.

A kind of fast folding formula velocipede of the utility model is that trailing wheel becomes two layouts, has increased the two pedal structure of driven, makes bicyclist's both feet all can step down on the pedal; And replace trample motion up and down; The athletic posture same movement amount balance of both feet, sustainability is good, and the vehicle frame afterbody is connected with stay bearing plate, support wheel; Having eliminated rides moves after the center of gravity when trampling firmly and produces the hidden danger of turning over behind the car; Improved safety, be provided with collapsible hinge mechanism and buckle device with lock between vehicle frame and Shears, adopted the registration device of Spring Card post flexible easy between telescopic vertical rod internal and external casing and handle and vertical rod with fast assembling and disassembling.

Description of drawings

Fig. 1 is the STRUCTURE DECOMPOSITION scheme drawing of the utility model fast folding formula velocipede embodiment one

Fig. 2 is trailing wheel, connecting panel, stay bearing plate, the driving device structure decomposing schematic representation of the utility model embodiment one

Fig. 3 is the driving device structure decomposing schematic representation of the utility model embodiment one

Fig. 4 is front fork, vertical rod, the handle assembly front view of the utility model embodiment one

Fig. 5 is front fork, vertical rod, the handle assembly left view of the utility model embodiment one

Fig. 6 is a registration device enlarged drawing in the vertical rod, handle of the utility model embodiment one

Fig. 7 is a latching system enlarged drawing on the Shears of the utility model embodiment one.

The specific embodiment

Below in conjunction with embodiment the utility model is further described, following each embodiment only is used to explain the technical scheme of the utility model, but to not restriction of the utility model.

Embodiment one

With reference to accompanying drawing 1 to accompanying drawing 7; The utility model is two to be stepped on driven scooter and comprises vehicle frame 1, front fork 2, vertical rod 3, handle 4, Shears 5, front-wheel 6, trailing wheel 7, left and right sides pedal 8, actuating device 9, stay bearing plate 10, support wheel 11, connecting panel 15, and the expansion link versions are adopted in vertical rod 3; Handle 4 is located at the top of vertical rod 3; The bottom of vertical rod 3 is connected with the upper end of front fork 2, and Shears 5 is sleeved on the front fork 2, and the front end of its lower end, other end and vehicle frame 1 is hinged with collapsible hinge mechanism 12; Latching system 14 is located on the Shears 5; Near the hinged place, connecting panel 15 two ends connect vehicle frame 1, stay bearing plate 10 respectively just and between the front end of vehicle frame 1, and the middle part connects actuating device 9.About two trailing wheels 7 be contained in separately on about 1 two hind axles of vehicle frame, left and right sides pedal was located on the back side top hinging supporting shaft of vehicle frame 1 in 8 minutes, the front end of pedal 8 also is provided with the extension spring of replying the position, this extension spring one end links to each other with pedal 8, the other end is connected with vehicle frame 1.After the inboard that is arranged on two trailing wheels 7 with left and right sides pedal 8 cooresponding left and right sides actuating devices is positioned at left and right sides pedal 8.Left and right sides actuating device is identical to be symmetrical set; Comprise the tooth bar 917, backgear, gear housing 1, big gear wheel 93, miniature gears 94, unilateral bearing 95, back-up ring 96, bearing 99, stroke (or sliding) rail 910, gear case lining 911, gearbox shaft lining 913, back-up ring 916, gear housing 2 92, gearbox shaft 914, black nut 915, flat key 2 97, flat key 1, the calm screw 912 that are connected under the left and right sides pedal 8 with the coaxial setting of trailing wheel; Gear housing 1 matches with gear housing 2 92 and covers; Gear case lining 911, gearbox shaft lining 913 are inlaid in gear housing 1 and gear housing 2 92 and shaft hole inner wall respectively; Back-up ring 916, big gear wheel 93, back-up ring 96, draw rail 910, miniature gears 94 and be sleeved on successively and be positioned at gear housing 1 and gear housing 2 92 on the gearbox shaft 914 and match and cover the cavity of formation; Tooth bar 917 and miniature gears 94 engagements; Miniature gears 94 and big gear wheel 93 coaxial synchronous rotations, big gear wheel 93 again with the engagement of the backgear of the coaxial setting of trailing wheel.Collapsible hinge mechanism 12 is made up of hinged-support 121 and hinging supporting shaft 122, offers deep-slotted chip breaker 1 on the hinged-support 121, and there is recessed breach at the two ends of this groove.Latching system is made up of drag hook 141 and extension spring 142, and drag hook 141 slides up and down and is arranged on the Shears 5, and extension spring 142 1 ends link to each other with drag hook 141, and the other end links to each other with the Fast Activities snap close hinge of hinge mechanism.Handle 4 is connected with vertical rod 3, and the location between vertical rod 3 internal and external casings of expansion link structure can be known from figure by registration device 31 and realize; It is made up of with 312 on " U " shape spring card post 311, and card post 311 ends are provided with back-up ring, on the pipe of handle 4 and vertical rod 3 or inside and outside suit or on vertical rod 3 internal and external casings of expansion link structure; Their corresponding position all has and holds the through hole that card post 311 springs into, " U " shape spring 312 open two ends, and an end suppresses on tube wall; The other end suppresses in the rear end of card post 311, and promptly this end of back-up ring will block post 311 and be pressed in the through hole; Fix internal and external casing, make its activity relatively.

Step on driven scooter for this pair and also be provided with brake gear; When riding, both hands are held handle 4 control directions, and both feet are trampled on left and right sides pedal 8; Alternately trample up and down and make tooth bar 917 drive miniature gears 94 rotations; Big gear wheel 93 and miniature gears 94 coaxial also rotations synchronously, big gear wheel 93 meshes backgear again, thereby rotate trailing wheel 7 car is advanced.

During folding; Make Fast Activities snap close hinge leave the recessed breach of deep-slotted chip breaker one 1211 groove ends carrying on the drag hook 141; Simultaneously with vertical rod 3 around rotating than fulcrum, in Fast Activities snap close hinge slipped into the recessed breach of deep-slotted chip breaker one 1211 other ends, vertical rod this moment 3 parts were approaching parallel with vehicle frame 1.

And the length of elongation or contraction vertical rod 3 then only needs to scratch push down the card post 311 in the vertical rod 3, draws or promote the inner sleeve of vertical rod 3 then, when card post 311 another through hole At time of ejects of arrival, gets final product.

Claims

1. a fast folding formula velocipede comprises vehicle frame, front fork, vertical rod, handle, front and back wheel, Shears, pedal, actuating device and brake gear, and vertical rod is a telescopic structure; Handle is located at the vertical rod top, and the vertical rod bottom links to each other with front fork, and Shears is sleeved on the front fork; Front-wheel is contained on the front fork, and the free end of Shears is connected with the front end of vehicle frame, and two trailing wheels are located at the both sides, rear end of vehicle frame; It is characterized in that: described actuating device is a rack and-pinion mechanism; It comprises the arc-shaped rack that is connected in pedal below, with axle be connected trailing wheel front and arc-shaped rack ingear miniature gears on the vehicle frame, with the coaxial big gear wheel of miniature gears, and big gear wheel ingear middle gear, middle gear is hinged on vehicle frame with the coaxial setting of trailing wheel, pedal; The front portion is provided with spring and links to each other with vehicle frame in order to reply the position; Also be connected with stay bearing plate at the vehicle frame afterbody, the stay bearing plate end is provided with support wheel, is provided with collapsible hinge mechanism between vehicle frame and Shears; This hinge mechanism also is provided with latching system, is provided with registration device between telescopic vertical rod internal and external casing, handle and vertical rod.

2. fast folding formula velocipede as claimed in claim 1 is characterized in that: described registration device is made up of with " U " shape spring the card post, and " U " shape spring is opened two ends, and an end suppresses on tube wall, and the other end suppresses the rear end at the card post.

3. like claim 1 or 2 described fast folding formula velocipedes; It is characterized in that: described latching system is made up of drag hook and extension spring; Drag hook slides up and down and is arranged on the Shears, and extension spring one end links to each other with drag hook, and the other end links to each other with the Fast Activities snap close hinge of hinge mechanism.