CN110497995A - A multi-purpose folding tricycle operating mechanism, using method - Google Patents

Abstract

The invention discloses a multi-purpose folding tricycle operating mechanism and using method, comprising: a vehicle frame, two front wheels, handlebars are arranged on the vehicle frame, and the vehicle frame includes two forward tilting angles and parallel erected The front fork, the head tube, the seat tube, the beam tube between the two front wheels, the main beam tube, the connecting piece connecting the beam tube and the main beam tube, two folders with opposite folding directions on the main beam tube, Rear fork: the support frame of the universal auxiliary wheel assembly is installed at the front end of the frame, and the bolt kit or quick lock mechanism is respectively set on the head tube or beam tube of the frame and the front fork or the connecting rod connecting the two front forks , also includes a folding standpipe, the folding standpipe is connected to the two front forks respectively, a connecting rod assembly with a quick release structure is installed on the two handlebars or a belt is installed on the two front forks Connecting rod assembly with quick release structure. The advantages of the invention are: the structure is safer for the rider, the operation is convenient, the volume of the whole vehicle is greatly reduced after the structure in the riding state is converted into the structure in the pushing state, and the pushing is more flexible.

Description

A multi-purpose folding tricycle operating mechanism, using method

technical field

The invention relates to a multipurpose folding tricycle operating mechanism and a using method.

Background technique

Existing bicycles for mothers and babies generally turn the rear wheels to the front along the beam as the center, without auxiliary wheels, and directly still utilize the rear wheels to rotate and promote. The disadvantage of this method is: because the rear wheels cannot swing left and right, after the rear wheels are turned over to the front along the beam as the center, when using the rear wheels to rotate and promote, it is more convenient to go straight but it is not smooth when turning. In addition, the prior art also has a rack on the rear wheel to install a universal auxiliary wheel, and the bicycle becomes a tricycle after turning over 180 degrees. However, after turning over 180 degrees, the rear wheel of the bicycle is still used to carry out, because the rear wheel of the bicycle It cannot turn left and right, so it is no problem to go straight after turning 180 degrees, but it is very laborious to turn and turn, and before turning the rear wheel forward 180, you must first remove the device basket from the car and put it next to it, and then you can operate it. The rear wheel is flipped 180 degrees. This process will make the user leave the guardian's sight and distance for a short time, which will be unsafe. In addition, the operation process is also very laborious and the user experience is poor.

Contents of the invention

In view of this, the main purpose of the present invention is to provide a multi-purpose folding tricycle operating mechanism, which can be applied to mother and baby bicycles or wheelchair bicycles or shopping bicycles. After the structure is converted to the push state structure, the volume of the whole vehicle is greatly reduced, and the push is more flexible.

In order to achieve the above object, the technical solution of the present invention is achieved in the following way: a multipurpose folding tricycle operating mechanism, comprising: a vehicle frame, two front wheels, and a handlebar is arranged on the vehicle frame, it is characterized in that: the vehicle The frame includes two front forks that are tilted forward and parallel to each other, a head tube, a seat tube, a beam tube between the two front wheels, a main beam tube, a connecting piece between the cross beam tube and the main beam tube, and the main beam Two folders and rear forks with opposite folding directions are arranged on the tube; the support frame of the universal auxiliary wheel assembly is installed at the front end of the frame, and the head tube or beam tube of the frame is connected to the front fork or two front forks are connected. The connecting rods are respectively provided with latch kits or quick lock mechanisms, and also include folding standpipes, which are respectively connected to the two front forks, and a fast Disassemble the connecting rod assembly of the structure.

The method for using the multipurpose folding tricycle operating mechanism of the present invention is characterized in that it includes:

The first step is to open the two folders on the main beam tube of the frame, fold the main beam tube, the rear fork and the rear wheel connected by the rear fork into a Z shape, stick to the beam tube and fix it;

The second step is to remove the quick-release steering connecting rod, then rotate the two handlebar vertical tubes 180 degrees, turn the two front forks with forward angles 180 degrees, and then reinstall the steering connecting rod , fixedly connect the two front forks;

The third step is to close the latch mechanism between the locking front fork and the head tube.

Compared with the prior art, the present invention has the following prominent substantive features and remarkable progress:

First, after the riding state is transformed into a pushcart, the size is greatly reduced, and the push is more flexible. The process of changing from the riding state to the push state is mainly divided into two steps. Open the switch, fold the main beam tube, the rear fork and the rear wheel connected to the rear fork into a Z-shape, stick to the beam tube and fix them; the second step is to remove the quick-release steering connecting rod, and then rotate the two cars separately Turn the standpipe 180 degrees, so that the two front forks with forward tilt angles are turned 180 degrees respectively, and then reinstall the steering connecting rod to fix the two front forks. At this time, the two front forks become the rear The angle of inclination ensures that the center of gravity of the device basket or wheelchair seat is close to the center of the newly formed cart on the one hand, and on the other hand, the center of gravity of the frame part folded into a Z shape is located at the two between the line connecting the axes of the two front wheels and the axis of the universal steering auxiliary wheel, thereby ensuring the stability of the vehicle structure in the newly formed cart state; the third step is to close and lock the lock between the front fork and the head tube. The latch mechanism or quick lock mechanism, at this time, the structure of the whole vehicle becomes a front fork with two rearward tilting directions and the direction is fixed, the front wheel and two or one auxiliary wheel that can be turned universally form a four-wheel or three-wheel The structure of the wheeled cart is very flexible when going straight and turning.

Second, the protection of users is safer. In the entire support frame, the bracket assembly for placing the device basket or wheelchair seat or shopping basket and the bracket assembly for installing the universal steering auxiliary wheel are composed of two parts. The protruding position and the left and right sides of the bracket assembly are all on the periphery of the device basket or the wheelchair seat, forming an anti-collision protection fence for the device basket or the wheelchair seat.

Third, it is more convenient to operate when folded and stored, and occupies a smaller volume. First, open the two folders of the folded main beam tube to fold the frame part behind the beam tube into a Z-shaped close to the beam tube, and then remove the steering connecting rod , and then you can turn the two front wheels 90 degrees to be parallel to the beam tube, and fold the vertical tube and handlebars close to the two front wheels, then remove the device basket or wheelchair seat, and finally open the quick release mechanism to put the belt The support frame with the universal steering auxiliary wheel can be quickly disassembled, and the space occupied by the whole vehicle will be greatly reduced, and it can be easily stored in a small space such as the rear trunk of the car.

Description of drawings

Fig. 1 is a schematic diagram of an embodiment of the multipurpose folding tricycle operating mechanism of the present invention.

Reference signs indicate

301-rear wheel 302-rear fork 303-seat tube 304-seat cushion 305-second folder

306-first folder 307-chainring 308-main beam tube 309-first vertical tube 310-first handlebar

311-Second Steering Tube 313-Second Handlebar 314-Steering Linkage Assembly with Quick Release Structure

315-Device Basket 316-Bracket Assembly for Device Basket or Wheelchair Seat

317-Bracket assembly with universal auxiliary wheels 318-Front wheel 319-Front fork with angled

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

Please refer to Fig. 1, the multi-purpose folding tricycle operating mechanism of the present invention comprises: a vehicle frame, two front wheels, handlebars are arranged on the vehicle frame, and the vehicle frame includes two forward angles and parallel vertical front wheels Fork, head tube, seat tube, beam tube between the two front wheels, main beam tube, connecting piece connecting the beam tube and the main beam tube, two folders with opposite folding directions on the main beam tube, rear Fork; the support frame of the universal auxiliary wheel assembly is installed at the front end of the vehicle frame, and the latch kit or quick lock mechanism is respectively set on the head tube or beam tube and the front fork of the vehicle frame, and also includes a folding standpipe. The standpipe is connected between the two front forks, or is respectively connected with the two front forks, and the handlebar is equipped with a connecting rod assembly with a quick release structure.

Preferably, the forward inclination angle of the fork leg of the front fork is 25-35 degrees from the vertical direction in the riding state, and the use effect is better.

Preferably, an integrated structure is adopted between the main beam tube and the cross beam tube.

Preferably, the main beam tube and the cross beam tube are connected together by a connector structure.

Preferably, one end of the connector has a C-shaped groove structure, which is used to embed the beam tube and lock it with a screw or a quick lock mechanism.

Preferably, the folder is located close to the beam tube and the seat tube.

Preferably, the folder is composed of a hinge A side, a hinge shaft, a hinge B side, a folding handle, a connecting rod, and a connecting rod pivot pin which are sequentially connected.

Preferably, the folder is composed of a hinge A side, a hinge shaft, a hinge B side, a folding handle, a push rod built in the folding handle, and a pivot pin connected in sequence.

Preferably, the folder is composed of a hinge A side, a hinge shaft, a hinge B side, a connecting rod shaft pin, and a connecting rod with an eccentric circular handle connected in sequence.

Preferably, the front forks with two forward inclination angles include suspension front forks and non-suspension front forks.

Preferably, the back side of side A of the folder hinge near the position of the beam tube is connected with the back side of the C-shaped connector or directly made into an integrated folder connector, and the back side of side B of the folder hinge is connected to the back side of the main beam tube. When the beam tube is connected and the folder is locked, the front side of the hinge A and the front side of the hinge B are tightly attached together.

Preferably, there is a longitudinal through hole at the middle position of the hinge B side of the folder near the position of the cross beam tube on the main beam tube, which is used for the positioning hole function when the vehicle frame is made and corrected.

Preferably, the frame head tube or beam tube and the two front forks or the connecting rod connecting the two front forks are respectively installed or welded to lock the latch and the latch seat assembly between the two, or are respectively installed or Welding locks the quick-lock mechanism between the two.

Preferably, the two front forks of the vehicle frame are respectively equipped with front wheels, the upper ends of the front forks are equipped with folding vertical pipes and handlebars, and the rear ends are provided with rear wheels. Powerplants and Electric Powerplants.

Preferably, the support frame is mainly composed of two parts: a bracket assembly for placing a device basket or a baby basket or a wheelchair seat or a shopping basket, and a bracket assembly installed with universal steering auxiliary wheels, and the connecting parts between the two parts adopt Quick-release structure or one-piece folding structure, the connection between the overall support frame and the head of the frame adopts a fixed connection or a quick-release installation connection.

Preferably, handlebars are installed on the folded standpipes respectively connected to the upper ends of the front forks with two forward tilt angles, and a handlebar is installed between the handlebars with a connecting rod assembly with a quick-release structure.

Preferably, handlebars are installed on the folding standpipes that are respectively connected to the upper ends of the two front forks with a forward tilt angle, and a handlebar is installed on the folding standpipes, and a connecting rod assembly with a quick-release structure is installed between the two front forks.

Preferably, when the whole vehicle is riding, the device basket or the wheelchair seat and its bracket assembly installed on the support frame at the front of the vehicle are at a second angle that is inclined upward as a whole, and serve as the universal steering auxiliary wheel at the lowest point on the support frame higher than the ground.

Preferably, the second angle is 10-20 degrees, and the use effect is better.

Preferably, the universal steering auxiliary wheel installed at the lowest point on the support frame at the front of the vehicle falls on the ground when the whole vehicle is in the pushing state, and the device basket or wheelchair seat and its bracket assembly on the support frame are at an overall horizontal angle.

Another specific embodiment of the present invention is: a multi-purpose folding tricycle operating mechanism, comprising: a vehicle frame, the vehicle frame includes two front forks that are tilted forward and are parallel to each other, a head tube, and a space between the two front wheels. The beam tube, the main beam tube, the connecting piece connecting the beam tube and the main beam tube, two folders and rear forks with opposite axial directions are installed or welded on the main beam tube, and the belt is installed on the frame. There is or is connected to the support frame of the universal steering auxiliary wheel assembly, and a latch kit or a quick lock mechanism is respectively arranged on the head tube of the frame or the beam tube and the front fork or on the connecting rod connecting the two front forks. A connecting rod assembly with a quick release structure is installed between the front forks with a forward tilt angle or between the folding standpipes and the handlebars to which two front forks are respectively connected. When the whole vehicle is in the riding state, since the bracket part with the universal auxiliary wheel extends to the front of the device basket or the wheelchair seat, a protective fence is formed, which is safer; The first step is to open the two folders on the main beam tube of the frame, fold the main beam tube, the rear fork and the rear wheel connected by the rear fork into a Z-shaped close to the beam tube and fix it; the second The first step is to remove the quick-release steering connecting rod, then rotate the two handlebar vertical tubes 180 degrees, turn the two front forks with forward angles 180 degrees, and then reinstall the steering connecting rod to fix the After connecting the two front forks, the two front forks will be tilted back, so that on the one hand, the center of gravity of the device basket or wheelchair seat is close to the center of the newly formed cart, and on the other hand, it also allows the folding into a Z The center of gravity of the frame part of the type is located between the line connecting the axes of the two front wheels installed on the rear tilting front fork and the axis of the universal steering auxiliary wheel, thus ensuring the structure of the newly formed cart. stability; the third step is to close the latch mechanism between the locking front fork and the head tube. At this time, the structure of the whole vehicle becomes the front fork and the front wheel which are fixed in two backward tilting directions and two or one can be tensed. The steering auxiliary wheels jointly form a four-wheel or three-wheel cart structure, and the cart can be promoted.

Compared with the prior art, the present invention has the following prominent substantive features and remarkable progress:

First, after the riding state is transformed into a pushcart, the size is greatly reduced, and the push is more flexible. The process of changing from the riding state to the push state is mainly divided into two steps. Open the switch, fold the main beam tube, the rear fork and the rear wheel connected to the rear fork into a Z-shape, stick to the beam tube and fix them; the second step is to remove the quick-release steering connecting rod, and then rotate the two cars separately Turn the standpipe 180 degrees, so that the two front forks with forward tilt angles are turned 180 degrees respectively, and then reinstall the steering connecting rod to fix the two front forks. At this time, the two front forks become the rear The angle of inclination ensures that the center of gravity of the device basket or wheelchair seat is close to the center of the newly formed cart on the one hand, and on the other hand, the center of gravity of the frame part folded into a Z shape is located at the two between the line connecting the axes of the two front wheels and the axis of the universal steering auxiliary wheel, thereby ensuring the stability of the vehicle structure in the newly formed cart state; the third step is to close and lock the lock between the front fork and the head tube. The latch mechanism or quick lock mechanism, at this time, the structure of the whole vehicle becomes a front fork with two rearward tilting directions and the direction is fixed, the front wheel and two or one auxiliary wheel that can be turned universally form a four-wheel or three-wheel The structure of the wheeled cart is very flexible when going straight and turning.

Second, the protection of users is safer. In the whole support frame, the bracket assembly for placing the device basket or wheelchair seat or shopping basket and the bracket assembly for installing the universal steering auxiliary wheel are composed of two parts. The protruding position and the left and right sides of the bracket assembly are all on the periphery of the device basket or the wheelchair seat, forming an anti-collision protection fence for the device basket or the wheelchair seat.

Third, it is more convenient to operate when folded and stored, and occupies a smaller volume. First, open the two folders of the folded main beam tube to fold the frame part behind the beam tube into a Z-shaped close to the beam tube, and then remove the steering connecting rod , and then you can turn the two front wheels 90 degrees to be parallel to the beam tube, and fold the vertical tube and handlebars close to the two front wheels, then remove the device basket or wheelchair seat, and finally open the quick release mechanism to put the belt The support frame with the universal steering auxiliary wheel can be quickly disassembled, and the space occupied by the whole vehicle will be greatly reduced, and it can be easily stored in a small space such as the rear trunk of the car.

The above-mentioned embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the present invention shall be determined by the claims.

Claims (11)

1. a kind of multiduty folding tricycle operating mechanism, comprising: handlebar is arranged in vehicle frame, two front-wheels on vehicle frame, special Sign is: the vehicle frame includes the front fork of two forward leaning angles and the setting that is parallel to each other, head tube, sits between pipe, two front-wheels Two opposite foldings of folding direction are set on the connector, main-beam pipe between beam pipe, main-beam pipe, connecting cross beam pipe and main-beam pipe Folded device, rear fork；In the support frame of vehicle frame front end installation universal auxiliary wheel component, in the vehicle frame head pipe or beam pipe and Bolt external member or quick lock mechanism is respectively set on front fork or in the connecting rod of two front forks of connection, further includes folding vertical tube, The folding vertical tube is separately connected with described two front forks, and one is installed on the handlebar or two front forks and has quick-disassembly structure Connection bar assembly.

2. multiduty folding tricycle operating mechanism as described in claim 1, which is characterized in that the front fork fork leg leans forward Angle is and vertical direction is in 25-35 degree under riding condition.

3. multiduty folding tricycle operating mechanism as described in claim 1, which is characterized in that the main-beam pipe and crossbeam Integral structure is used between pipe.

4. multiduty folding tricycle operating mechanism as described in claim 1, which is characterized in that the main-beam pipe and crossbeam It is connected between pipe using connecting-piece structure.

5. multiduty folding tricycle operating mechanism as described in claim 1, which is characterized in that one end of the connector With C-shaped grooves structure, which locks for stemple Guan Bingyong screw or quick lock mechanism.

6. multiduty folding tricycle operating mechanism as described in claim 1, which is characterized in that the position of the folder Respectively close to beam pipe and sit pipe.

7. multiduty folding tricycle operating mechanism as claimed in claim 5, which is characterized in that the folder is by successively The face hinge A of connection, hinge axis, the face hinge B, folding handle, connecting rod, pitman shaft pin bank at.

8. multiduty folding tricycle operating mechanism as claimed in claim 5, which is characterized in that the folder is by successively The face hinge A of connection, hinge axis, the face hinge B, folding handle, the mandril being built in folding handle, pivot pin composition.

9. multiduty folding tricycle operating mechanism as claimed in claim 5, which is characterized in that the folder is by successively The face hinge A of connection, hinge axis, the face hinge B, connecting rod pivot pin, the connecting rod composition with eccentric round shaft.

10. multiduty folding tricycle operating mechanism as described in claim 1, which is characterized in that described two top rakes The front fork of degree includes shock-proof front-fork assembly and non-shock-proof front-fork assembly.

11. a kind of application method of multiduty folding tricycle operating mechanism characterized by comprising

The first step is that first two folders on vehicle frame main beam pipe are opened, the rear-wheel that main-beam pipe, rear fork and rear fork are connected Z-type is folded into be adjacent to beam pipe and fix；

Second step is that the steering connector bar of fast disassembly type is taken off, and then rotates two handlebar stem 180 degrees respectively, and two are had Steering connector bar is reinstalled again after having the front fork of forward leaning angle respectively to rotate 180 degree respectively, has been fixedly connected with two front forks；

Third step shuts the bolt mechanism between locking front fork and head tube.