WO2012119362A1

WO2012119362A1 - Anti-toppling folding mother-and-child tricycle

Info

Publication number: WO2012119362A1
Application number: PCT/CN2011/077338
Authority: WO
Inventors: 姜适; 王台山
Original assignee: Jiang Shi; Wang Taishan
Priority date: 2011-03-09
Filing date: 2011-07-19
Publication date: 2012-09-13
Also published as: CN201971100U

Abstract

An anti-toppling folding mother-and-baby tricycle; a frame front axle (4) and a steering mechanism are connected to a front wheel (8) via an anti-toppling lifting mechanism; the anti-toppling lifting mechanism consisting essentially of large-lead ball screws (11) capable of turning to the left and right, left and right ball screw nuts (10) and a steering connection rod (9); the upper ends of the large-lead ball screws (11) capable of turning to the left and right are fixedly connected to the left and right handle bar (1) respectively, and the lower ends of the large-lead ball-screws (11) capable of turning to the left and right are fixedly connected to a U-shaped front fork body (7); the left and right ball screw nuts (10) of the large-lead ball screws are fixedly connected to the left and right T-shaped head tubes respectively. Through adding an anti-toppling lifting mechanism, the center of gravity of the tricycle body and rider shift toward the inner side of the turning direction when the mother-and-child tricycle turns, thus overcoming the defect of tricycles easily topple when riding.

Description

Anti-overturned folding mother and child tricycle

Technical field

The utility model belongs to a tricycle, in particular to an anti-overturning folding mother-child tricycle which is safe and flexible in turning. Background technique

The use of various forms of tricycles is very common. It can be divided into two types of front bucket type and rear bucket type. Foldable tricycles are rare on the market, and there are no foldable mother-child tricycles. For the sake of safety for children, the three-wheeled mother and child car that is generally used is a front bucket type. If you need to enter a supermarket such as a supermarket, you can only put the car outside and hold the child into the store, which is very inconvenient. The applicant (Patent No. ZL201020198054. 0) discloses a folding mother-child tricycle that can be converted from a riding state to a stroller state, and converts the tricycle into a stroller form by shortening the wheelbase of the frame and turning the handlebar. Comfortable, easy to change process. The structure is: a foldable frame mainly composed of a rear frame and a front frame connected by a folding box, front and rear wheels, a handlebar connected to the front frame, and a baby seat connected to the rear frame, The handlebar is divided into left and right handlebars; the front frame of the front frame is provided with a cross tube penetrating therethrough, the cross tube is slidably connected with the front positioning mechanism of the frame, and the front positioning mechanism is mainly in front of the frame The positioning seat, the front positioning rotating shaft and the front horizontal tube T-shaped head tube are formed. The front positioning seat of the frame realizes three positions by the front positioning pin and the front positioning rotating shaft, and the left and right handlebars respectively pass the bearing and the T-shaped head. The pipe connection, the left and right handlebars are connected to the left and right front wheels through the front fork and the steering mechanism. During the ride, the process of turning left and right found that the tricycle had a hidden danger. The reason for the analysis is: The connection mechanism between the left and right handlebars and the wheel cannot change the support radius of the connecting mechanism with the turning of the car. This structure has a hidden danger of riding and needs to be improved. Utility model content

The purpose of the utility model is to overcome the deficiencies of the above-mentioned technologies, and to provide an anti-overturning folding mother-child tricycle with safe turning, which is safe and comfortable, and has a labor-saving and convenient conversion process. In order to achieve the above object, the utility model adopts the following technical solutions: an anti-overturning folding mother-child tricycle, mainly having a front wheel, left and right handlebars connected with the front frame, steering of the left and right handlebars supported by the front axle of the frame The mechanism, the lifting mechanism, the front fork and the left and right front wheels are connected, and the front axle and the steering mechanism of the frame are mainly composed of a front frame positioning seat, a front positioning rotating sleeve, a steering link and a steering bracket, and the front positioning seat and the front positioning shaft The sleeve, the front cross tube and the τ-type head tube are fixed and connected to the front wheel, the left and right handlebars are connected with the front fork standpipe, and the two independent steering front wheels are connected with the steering link and the end portion a rotating steering bracket connection, wherein: the front axle of the frame and the steering mechanism are connected to the front wheel by an anti-overturning lifting mechanism, and the anti-overturning lifting mechanism is mainly a large lead ball screw that is rotated by left and right sides, The left and right ball screw nut and the steering link are configured, and the upper ends of the left and right rotating large lead ball screws are respectively fixed to the left and right handlebars, and the left and right rotating large lead balls are at the lower end of the lead screw U-shaped front fork body fixed Said left and right T-pipes are firmly fixed to the head with a large lead screw screwed left and right ball screw nut.

The utility model has the beneficial effects that the tricycle is converted into a stroller form by shortening the wheelbase of the frame and the rotation of the handlebar, which is safe and comfortable, and the conversion process is labor-saving and convenient. If the mother and child need to enter a large supermarket such as a supermarket, it is very convenient to push the child into the store by simply changing the way of the car. By installing an anti-overturning elevator, when the mother and child are turning, the center of gravity of the body and the rider is shifted to the inside of the turning direction, which overcomes the defect that the tricycle is easy to tip over when riding. DRAWINGS

Figure 1 is a schematic view of the structure of the present invention.

In the picture:

1, left and right handlebars

2, the front frame of the frame

3, front positioning shaft sleeve

4, the front axle of the frame

5, T-shaped head tube

6, steering bracket

7, U-shaped front fork body

8, the front wheel 9, steering link

10, ball screw nut

11, ball screw concrete implementation

The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings and preferred embodiments. Referring to the drawings, an anti-overturned folding mother-child tricycle is mainly composed of a combination of a left and a right handlebar 1 and a front axle component of the front wheel 8 connected to the front frame, the front axle assembly and the steering of the frame. The mechanism is mainly composed of a frame front positioning seat 2, a front positioning rotating shaft sleeve 3, a frame front axle 4, a steering link 9 and a steering bracket 6, and the two independent steering front wheels 8 and the steering link and the end portion a rotating steering bracket connection, the front axle and the steering mechanism of the frame are connected to the front wheel by an anti-overturning lifting mechanism, and the anti-overturning lifting mechanism is mainly left and right balls of the large lead ball screw 11 rotated by the left and right directions The screw nut 10 and the steering link are configured, and the upper ends of the left and right rotating large lead ball screws are respectively fixed to the left and right handlebars, and the left and right rotating large lead balls are at the lower end of the lead screw and the U-shaped front end. The fork main body 7 is fixedly fixed, and left and right rotating ball screw nuts screwed to the large lead ball screw are respectively fixed in the left and right T-shaped head tubes 5.

Working process: the two front fork standpipes of the mother-child tricycle are replaced by the left and right-handed large lead ball screws. The two T-head pipes of the front axle of the three-wheel frame are equipped with left and right handed ball screws. The nut, the ball screw and the U-shaped front fork and the front wheel are combined and realize the synchronous steering of the left and right front wheels through the connecting rods, and each of them realizes the reverse direction lifting movement, thereby forming an anti-overturning lifting mechanism of the mother-child tricycle. By installing an anti-overturning lifting mechanism, when the mother and child tricycles are turned, the center of gravity of the body and the rider shifts to the inside of the turning direction, overcoming the defect that the tricycle is easy to tip over when riding.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the structure of the present invention in any way. Any simple modifications, equivalent changes and modifications made to the above embodiments in accordance with the technical spirit of the present invention are still within the scope of the technical solutions of the present invention.

Claims

Claim

1. An anti-overturned folding mother-child tricycle, mainly having a front wheel, left and right handlebars connected to the front frame, a steering mechanism supported by the front and rear handlebars through the front axle of the frame, a lifting mechanism, a front fork and left and right front wheels The front axle and the steering mechanism of the frame are mainly composed of a front frame of the frame, a front positioning rotating sleeve, a steering link and a steering bracket, and the front positioning seat and the front positioning rotating sleeve, the front horizontal tube and the τ fixed thereto The head tube is axially and radially positioned and coupled to the front wheel, the left and right handlebars are coupled to the front fork riser, and the steering between the two independent steering front wheels and the steering link and the end are rotated The bracket connection is characterized in that: the front axle of the frame and the steering mechanism are connected with the front wheel through an anti-overturning lifting mechanism, and the anti-overturning lifting mechanism is mainly a left-handed large-circle ball screw, left and right The ball screw nut and the steering link are configured, and the upper ends of the left and right rotating large lead ball screws are respectively fixed to the left and right handlebars, and the left and right rotating large lead ball screws are at the lower end and the u-shaped front end The fork body is fixed, the left and right τ Are fixed and have a large lead screw screwed inside the head pipe left and right ball screw nut.