CN210101892U

CN210101892U - Automatic wheel straightening mechanism

Info

Publication number: CN210101892U
Application number: CN201920658579.9U
Authority: CN
Inventors: 张钊
Original assignee: Dongguan Prestige Sporting Products Co Ltd
Current assignee: Guangdong Qunwang Technology Co ltd
Priority date: 2019-05-08
Filing date: 2019-05-08
Publication date: 2020-02-21
Anticipated expiration: 2029-05-08

Abstract

The utility model discloses a wheel automatic righting mechanism, which comprises a linkage rod, a driving rod and a steering piece, wherein the upper end of the driving rod is pivoted on a front wheel seat; the steering piece is rotationally arranged on the front wheel seat, the steering piece is symmetrically provided with a first abutting inclined surface and a second abutting inclined surface, and the lower end of the driving rod is positioned between the first abutting inclined surface and the second abutting inclined surface; one end of the linkage rod is pivoted to the driving rod, and the other end of the linkage rod is pivoted to the frame of the folding vehicle so as to be folded along with the frame of the folding vehicle to drive the driving rod, so that the driving rod abuts against the first abutting inclined surface or the second abutting inclined surface, the steering piece drives the front wheel to be aligned, and the front wheel is parallel to the rear wheel of the folding vehicle. The utility model discloses automatic mechanism of ajusting of wheel can reset the front wheel with linking when folding car is folding, makes the front wheel parallel with the rear wheel.

Description

Automatic wheel straightening mechanism

Technical Field

The utility model relates to a folding car especially relates to one kind and can put the front wheel when folding car is folding, makes the automatic mechanism of putting of wheel that front wheel and rear wheel are parallel.

Background

Most of the existing folding bicycles are foldable, and the folding bicycle is generally divided into a front frame and a rear frame, and the front frame and the rear frame are pivoted and driven to be close to each other, so that the aim of folding the whole bicycle is fulfilled. However, all the existing folding carts ignore a problem, namely the steering problem of the front wheels; although the whole vehicle is folded, the front wheels are steering wheels, and the front wheels can deflect before and after folding, namely the front wheels are not parallel to the rear wheels, so that the folding vehicle is poor in stability after folding due to the deflection phenomenon, and the folding vehicle is not attractive and brings certain influence on travel carrying or storage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can reset the front wheel with linking when folding the car, make the automatic mechanism of putting upright of wheel of front wheel and rear wheel parallel.

In order to achieve the above object, the present invention provides an automatic wheel alignment mechanism for aligning a front wheel mounted on a front wheel seat of a foldable vehicle, comprising a linkage rod, a driving rod and a steering member, wherein the upper end of the driving rod is pivoted to the front wheel seat; the steering piece is rotationally arranged on the front wheel seat, the steering piece is symmetrically provided with a first abutting inclined surface and a second abutting inclined surface, and the lower end of the driving rod is positioned between the first abutting inclined surface and the second abutting inclined surface; one end of the linkage rod is pivoted to the driving rod, and the other end of the linkage rod is pivoted to the frame of the folding vehicle so as to be folded along with the frame of the folding vehicle to drive the driving rod, so that the driving rod abuts against the first abutting inclined surface or the second abutting inclined surface, the steering piece drives the front wheel to be straightened, and the front wheel is parallel to the rear wheel of the folding vehicle.

Compared with the prior art, because the utility model discloses a set up actuating lever and steering member on the front wheel seat to set up first supporting inclined plane and second and support the inclined plane on steering member, lead to the one end and the actuating lever pin joint of linkage rod again, the other end and frame pin joint, thereby can utilize the power that the frame was folded up to drive linkage member, make its drive the actuating lever makes the actuating lever support the inclined plane through first supporting inclined plane or second and promotes steering member action, and then makes steering member drives the front wheel is ajusted. Therefore, the front wheels can automatically adjust the directions of the front wheels along with the folding of the folding trolley, so that the front wheels are ensured to be in a normal position state after being folded, and the stability of the folding trolley after being folded is ensured; the front wheels can be used as supporting driving wheels after being straightened, so that the folding trolley can be dragged away like a luggage case, and the carrying is convenient; and the whole folding bicycle is more beautiful after being folded and is more convenient to store.

Preferably, a positioning recess is arranged between the first abutting inclined surface and the second abutting inclined surface, and after the front wheel is straightened, the lower end of the driving rod is clamped in the positioning recess. The positioning concave part can limit the driving rod, so that the driving rod is ensured to be positioned in the middle position of the steering piece, the aim of locking the front wheel after resetting is fulfilled, and the front wheel is prevented from swinging accidentally after resetting.

Specifically, the distance between the first abutting inclined surface and the second abutting inclined surface from the front to the rear is gradually reduced.

Preferably, the front wheel is pivoted to the front wheel seat, a connecting rod is arranged on a wheel shaft of the front wheel, and the connecting rod is connected with the steering member through a pull rod. The connecting rod and the pull rod can transmit the torsion of the steering piece to the front wheel, so that the steering or the straightening of the front wheel is realized.

Specifically, the pull rod is connected with the connecting rod through a universal ball head, and the pull rod is connected with the steering piece through a universal ball head. The universal ball head can ensure that the pull rod and the connecting rod and the pull rod and the steering piece can flexibly move when the front wheel is steered or aligned, and interference or jamming is avoided.

Preferably, the steering member is a hollow structure, and the first abutting inclined plane and the second abutting inclined plane are formed at two side edges of the hollow structure.

Specifically, hollow out construction's both sides still are equipped with and are curved the position of dodging, the position of dodging is in it is used for holding when turning to the piece and driving the front wheel and turn to the actuating lever.

Drawings

Fig. 1 is a schematic view of the automatic wheel straightening mechanism of the present invention installed on a folding cart.

Fig. 2 is a bottom view of the automatic wheel straightening mechanism of the present invention mounted on the foldable vehicle.

Fig. 3 is a bottom view of the automatic wheel straightening mechanism of the present invention for straightening the front wheel.

Fig. 4 is a state diagram of the steering member of the automatic wheel straightening mechanism of the present invention for straightening the front wheel.

Fig. 5 is a view showing the front wheel being properly turned upward after the automatic wheel-straightening mechanism of the present invention is folded with the frame.

Detailed Description

In order to explain technical contents, structural features, and effects achieved by the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the automatic wheel straightening mechanism 100 of the present invention is used for straightening the front wheel 205 installed on the front wheel seat 203 of the foldable vehicle 200, the frame of the foldable vehicle 200 includes a front frame 201, a bottom rod 202, a front wheel seat 203, a rear frame 204 and a rear wheel seat 210, the front end of the front frame 201 is pivoted with the front wheel seat 203, and the rear end of the front frame 201 is pivoted with the front end of the rear frame 203. The front end of the bottom rod 202 is pivoted with the front wheel seat 203, and the rear end of the bottom rod 202 is pivoted with the rear frame 203. The front wheel 205 is installed on the front wheel seat 203, and the direction rod of the foldable vehicle 200 is pivoted on the front wheel 205 seat and the central axis is vertically arranged. The rear end of the rear frame 203 is pivoted with the rear wheel seat 204. The rear wheels 206 are mounted on the rear wheel mounts 204. The automatic wheel righting mechanism 100 comprises a linkage rod 1, a driving rod 2 and a steering piece 3; the front end of the steering member 3 is rotatably disposed on the front wheel seat 203 and connected to the steering rod, the rotation center is coaxial with the steering rod, and the left and right of the rear end of the steering member 3 are symmetrically provided with a first abutting inclined surface 31 and a second abutting inclined surface 32 which are opposite to each other. The upper end of the driving rod 2 is pivoted to the front wheel seat 203, and the lower end of the driving rod 2 is located between the first abutting inclined surface 31 and the second abutting inclined surface 32. One end of the linkage rod 1 is pivoted to the driving rod 2, and the other end is pivoted to the frame of the folding bicycle 200; specifically, a connecting rod 207 is arranged between the two bottom rods 202 of the frame, the connecting rod 207 is pivoted with the linkage rod 1, and the pivot shaft is not coaxial with the pivot shaft of the connecting rod 207 pivoted on the front wheel seat 203. When the frame of the foldable vehicle 200 is folded, the bottom rod 202 drives the connecting rod 207, so that the connecting rod 207 drives the linkage rod 1, and therefore, the linkage rod 1 drives the driving rod 2 along with the folding of the frame of the foldable vehicle 200, so that the driving rod 2 abuts against the first abutting inclined surface 31 or the second abutting inclined surface 32, and further, the steering member 3 drives the front wheel 205 to swing, and the front wheel 205 is parallel to the rear wheel 206 of the foldable vehicle 200.

As shown in fig. 4, the distance between the first abutting inclined surface 31 and the second abutting inclined surface 32 decreases gradually from the front to the back. A positioning recess 33 is disposed between the first abutting inclined surface 31 and the second abutting inclined surface 32, and after the front wheel 205 is straightened, the lower end of the driving rod 2 is clamped in the positioning recess 33. The positioning recess 33 can limit the driving rod 2, so that the driving rod 2 is ensured to be positioned in the middle of the steering member 3, the purpose of locking the front wheel 205 after being reset is achieved, and the front wheel 205 is prevented from being accidentally swung after being reset. The steering member 3 is a hollow structure 3a, and the first abutting inclined surface 31 and the second abutting inclined surface 32 are formed at two side edges of the hollow structure 3 a. Hollow out construction 3 a's both sides still are equipped with and are curved position 34 of dodging, it is in to dodge position 34 be used for holding when steering member 3 drives front wheel 205 and turns to the actuating lever 2 prevents actuating lever 2 from taking place to interfere with steering member 3 when front wheel 205 normally turns to.

Referring to fig. 1 and 2, the front wheel 205 is pivotally connected to the front wheel seat 203, a connecting rod 208 is disposed on a wheel axle of the front wheel 205, and the connecting rod 208 is connected to the steering member 3 through a pull rod 209. The link 208 and the tie rod 209 may transmit the torsion force of the steering member 3 to the front wheel 205, thereby achieving steering or straightening of the front wheel 205. Specifically, the tie rod 209 and the connecting rod 208 and the tie rod 209 and the steering member 3 are connected through universal ball joints. When the front wheel 205 turns or steers, the universal ball head can ensure that the pull rod 209 and the connecting rod 208 and the pull rod 209 and the steering part 3 can flexibly move, and interference or jamming is avoided.

With reference to fig. 3 to 5, when the frame is folded and the front wheel 205 is biased to the left, the rear end of the steering member 3 is biased to the right, here, the rear end of the front frame 201 swings upward to drive the rear end of the bottom rod 202 to swing upward, the connecting rod 207 of the bottom rod 202 generates motion to drive the linkage rod 1, and the linkage rod 1 pulls the driving rod 2 to swing the lower end of the driving rod 2. At this time, the driving rod 2 abuts against the first abutting inclined surface 31, so that the rear end of the steering member 3 deflects to the left, and at the same time, the steering member 3 drives the connecting rod 208 through the pull rods 209 at both sides, so that the left front wheel 205 is aligned to the right, and the right front wheel 205 is aligned to the left. When the driving rod 2 is engaged with the positioning recess 33, the frame is folded, and the steering member 3 is in a correct position, so that the two front wheels 205 are completely corrected, and the axes of the front wheels 205 are parallel to the axes of the rear wheels 206. Similarly, when the frame is folded and the front wheel 205 is deflected to the right, the front wheel 205 can also be steered. When the frame is unfolded, the linkage rod 1 pulls the driving rod 2, so that the driving rod 2 exits from the positioning concave 33, and at the moment, the front wheel 205 is unlocked, and steering can be performed.

Compared with the prior art, because the utility model discloses a set up actuating lever 2 and steering member 3 on front wheel seat 203 to set up first abutting inclined plane 31 and second and abutting inclined plane 32 on steering member 3, lead to the one end and the 2 pin joints of actuating lever of linkage rod 1 again, the other end and frame pin joint, thereby can utilize the power that the frame was folded up to drive linkage member, make its drive actuating lever 2 makes actuating lever 2 support through first abutting inclined plane 31 or second and abuts inclined plane 32 and promote steering member 3 moves, and then makes steering member 3 drives front wheel 205 is ajusted. Therefore, the front wheels 205 can automatically adjust the direction of the folding vehicle 200 along with the folding, so that the front wheels 205 are in a normal position state after being folded, and the stability of the folding vehicle 200 after being folded is ensured; the front wheels 205 can be used as supporting wheels after being straightened, so that the folding trolley 200 can be dragged away like a luggage case, and the carrying is convenient; and the whole folding bicycle 200 is more beautiful after being folded and is more convenient to store.

The above disclosure is only a preferred embodiment of the present invention, and certainly, the scope of the present invention should not be limited thereto, and therefore, the scope of the present invention is not limited to the above embodiments.

Claims

1. The utility model provides an automatic mechanism of ajusting of wheel for the front wheel of ajustment installation on the front wheel seat of folding car, its characterized in that: the linkage mechanism comprises a linkage rod, a driving rod and a steering piece, wherein the upper end of the driving rod is pivoted on the front wheel seat; the steering piece is rotationally arranged on the front wheel seat, the steering piece is symmetrically provided with a first abutting inclined surface and a second abutting inclined surface, and the lower end of the driving rod is positioned between the first abutting inclined surface and the second abutting inclined surface; one end of the linkage rod is pivoted to the driving rod, and the other end of the linkage rod is pivoted to the frame of the folding vehicle so as to be folded along with the frame of the folding vehicle to drive the driving rod, so that the driving rod abuts against the first abutting inclined surface or the second abutting inclined surface, the steering piece drives the front wheel to be straightened, and the front wheel is parallel to the rear wheel of the folding vehicle.

2. The automatic wheel straightening mechanism according to claim 1, characterized in that: a positioning concave is arranged between the first abutting inclined surface and the second abutting inclined surface, and after the front wheel is straightened, the lower end of the driving rod is clamped in the positioning concave.

3. The automatic wheel straightening mechanism according to claim 2, characterized in that: the distance between the first abutting inclined plane and the second abutting inclined plane from the front to the rear is gradually reduced.

4. The automatic wheel straightening mechanism according to claim 1, characterized in that: the front wheel is pivoted to the front wheel seat, a wheel shaft of the front wheel is provided with a connecting rod, and the connecting rod is connected with the steering piece through a pull rod.

5. The automatic wheel straightening mechanism according to claim 4, wherein: the pull rod is connected with the connecting rod and the pull rod is connected with the steering piece through universal ball heads.

6. The automatic wheel straightening mechanism according to claim 1, characterized in that: the steering piece is of a hollow structure, and the first abutting inclined plane and the second abutting inclined plane are formed on two side edges of the hollow structure.

7. The automatic wheel straightening mechanism according to claim 6, wherein: the both sides of hollow out construction still are equipped with and are curved the position of dodging, the position of dodging is in it is used for holding to turn to the piece when driving the front wheel and turning to the actuating lever.