WO2018141171A1

WO2018141171A1 - Foldable scooter

Info

Publication number: WO2018141171A1
Application number: PCT/CN2017/112050
Authority: WO
Inventors: 韩德玮; 郑汉信
Original assignee: 大行科技(深圳)有限公司
Priority date: 2016-08-17
Filing date: 2017-11-21
Publication date: 2018-08-09
Also published as: CN106904235B; CN106904235A

Abstract

A foldable scooter, wherein the front end of a scooter beam (1) is fixed to a head tube (2); a steering component is hinged to a vertical tube (4) by means of a transverse hinge shaft; the upper end of a supporting rod (5) is rotatably connected to the vertical tube (4) by means of a connecting base (6); and the lower end of the supporting rod (5) is hinged to a scooter body. The steering mechanism of the foldable scooter is highly rigid, stable and reliable and may be folded rapidly, while after being folded, the foldable scooter is very small in size and is easy to carry and store.

Description

Folding car

Technical field

The present invention relates to vehicle structures, and more particularly to a vehicle structure that can be folded.

Background technique

Scooters are popular because of their light weight and ease of use. Usually, the handlebars of the scooter are relatively long, partly because the skateboard wheels are generally small in diameter, and because the riders often need to stand on the scooter, a longer standpipe must be guaranteed. This makes the connection between the standpipe of the scooter and the front fork appear soft and not stiff enough, resulting in poor rigidity of the entire body of the scooter. The soft connection between the standpipe and the front fork also affects the efficiency of the steering control of the handlebar.

The Chinese patent CN201520363103.4 discloses an "electric scooter" whose slender tube 3 is slender and weak, which has a certain adverse effect on the stability and safety of riding. When the scooter is folded, the entire standpipe is lowered, and the front wheel is lifted, so that the entire height of the folded body cannot be controlled to a small value.

For example, the Chinese patent CN201420631087.8 discloses a "bracket folding positioning device and a folding electric scooter", the front fork tube 1 is Y-shaped, although there is a certain increase in strength, as shown in Figure 3 of the patent, when folded The front fork tube 1 is turned to the back side, and the front wheel is lifted to a high position, so the volume is still relatively large after folding.

How to invent a scooter with a high strength of the front steering control system and a small volume after folding has become an urgent problem to be solved.

Summary of the invention

The invention aims to provide a folding bicycle with high strength, small folding volume, simple structure, convenient folding operation and easy processing and manufacture.

The present invention is achieved by a folding vehicle in which a front end of a vehicle beam is fixed to a head pipe, and a steering member is hingedly connected to the vertical pipe through a lateral hinge shaft, and an upper end of the support rod is rotatably connected to the vertical pipe through a connecting seat, the support The lower end of the rod is hingedly connected to the vehicle body.

The connecting seat has a first ring body for fixing the vertical pipe, and the connecting seat has a second ring body for mounting the upper end of the support rod; the first ring body is provided with a slit, and the slit is provided with a locking device.

The upper end of the support rod is provided with a corner bearing, and the angle bearing is sleeved in the second ring of the connecting seat; the axis of the head tube passes through the center point of the angular bearing.

The upper end of the support rod hinges the lateral hinge shaft of the T-shaped central member, the vertical hinge shaft of the T-shaped central member hinges the second ring body, and the transverse hinge shaft of the T-shaped central member is perpendicular to the axis of the vertical hinge shaft; The axis line of the vertical hinge axis of the central member overlaps the axis line of the head tube.

The middle of the support rod is provided with a lateral hinge shaft, and the lateral hinge shaft has a switching device for locking or loosening the upper part of the support rod and the lower part of the support rod.

The upper end of the support rod has a groove through which the pin passes and projects into the groove; the axis of the pin overlaps the axis of the head tube.

The standpipe is radially disposed with a limiting device, and the limiting device bears against the bottom of the connecting seat.

A bushing is disposed between the connecting seat and the vertical pipe, and the lower end opening of the bushing is provided with a vertical slit, and the limiting device passes through the slit and is fixed on the vertical pipe.

The upper end of the front fork is fixedly provided with a connecting seat, and the lower end of the vertical tube has a U-shaped arm, and the two sides of the U-shaped arm are respectively hinged to the connecting seat.

The connecting seat has two vertically disposed side plates, and two arms of the U-shaped arms are respectively hinged to the side plates; the side plates have horizontal long holes, and the screws pass through the long holes to hinge the U-shaped arms and the side plates The two screw ends are threaded to the sleeve.

The first ring body and the second ring body end each have an elongated slot, and the screw penetrates the elongated slot to lock the first ring body and the second ring body.

The upper end of the upper end of the vertical pipe is sleeved with a vertical pipe, the upper end of the vertical pipe is provided with a vertical sliding groove, and the top end of the vertical pipe is provided with a tightening seat, and the lower end of the vertical pipe is fixedly connected to the first ring body; The handlebars are respectively hinged at the two ends of the connecting rod to the middle of the handlebar and the tightening seat.

The fixing member passes through the through hole on the first ring body and fixedly connects the screw hole at the lower end of the riser, and the fixing member can move up and down in the sliding groove.

The support rod has an "A" shape, and the support rod has two legs, and the two legs are respectively hingedly connected to the shaft extending laterally on both sides of the vehicle body.

The folding bicycle, the vertical pipe, the support rod and the vehicle beam form a triangular support, forming a very stable structure; the upper end of the support rod is rotatably connected to the vertical pipe through the connecting seat, ensuring stability and enabling the vertical pipe to flexibly rotate; The tube is hinged to the front fork through the connecting seat, so that when the storage is folded, the vertical tube is tilted and leveled together with the support rod to the rear side, and the front wheel does not need to be tilted or rotated, thereby ensuring the entire volume after folding is minimized, and is convenient to carry and store. . The handlebar has a linkage property, and the folding of the vertical pipe and the folding of the handlebar can be completed in one action, saving time and convenience.

DRAWINGS

1 is a perspective view of a first embodiment of a folding bicycle;

2 is a schematic view of the first embodiment of the folding vehicle after the whole vehicle is folded;

3 is a schematic exploded view of a first embodiment of a folding bicycle;

4 is a schematic view of a connecting seat of a first embodiment of a folding bicycle;

Figure 5 is a schematic view of the connecting seat of the first embodiment of the folding bicycle;

Figure 6 is a partial cross-sectional view of the first embodiment of the folding cart A-A;

Figure 7 is a cross-sectional view of the entire vehicle of the first embodiment of the folding bicycle;

Figure 8 is a perspective view showing a second embodiment of the folding bicycle;

Figure 9 is a schematic exploded view of a second embodiment of the folding bicycle;

Figure 10 is a partial cross-sectional view showing a second embodiment B-B of the folding bicycle;

Figure 11 is a front elevational view showing a third embodiment of the folding bicycle;

Figure 12 is a schematic view showing the folded intermediate state of the third embodiment of the folding bicycle;

Figure 13 is a perspective view of a fourth embodiment of the folding cart;

Figure 14 is a schematic view showing the folded intermediate state of the fourth embodiment of the folding bicycle;

Figure 15 is a schematic view showing the state of the whole vehicle of the fifth embodiment of the folding bicycle;

Figure 16 is a schematic view showing the exploded state of the fifth embodiment of the folding bicycle;

Figure 17 is a schematic view showing the folded intermediate state of the fifth embodiment of the folding bicycle;

Figure 18 is a schematic view showing the folded state of the fifth embodiment of the folding bicycle;

Figure 19 is a side view showing a sixth embodiment of the folding bicycle;

Figure 20 is a cross-sectional view showing a sixth embodiment of the folding bicycle;

21 is a schematic exploded perspective view of a sixth embodiment of a folding bicycle;

Figure 22 is a partially enlarged schematic view showing a sixth embodiment of the folding bicycle;

Figure 23 is a perspective exploded view of a seventh embodiment of the folding bicycle;

Figure 24 is a front elevational view showing a seventh embodiment of the folding bicycle;

Figure 25 is a front cross-sectional view showing a seventh embodiment of the folding bicycle;

Figure 26 is a schematic view showing the folding of the seventh embodiment of the folding vehicle;

Figure 27 is a perspective view showing an eighth embodiment of the folding bicycle;

Figure 28 is a schematic exploded view of the eighth embodiment of the folding cart.

detailed description

The folding car of the present invention will be further described in detail below with reference to the accompanying drawings.

1-7 is a first embodiment of the folding bicycle of the present invention, the front end of the vehicle beam 1 is fixed to the head pipe 2, the upper end of the steering component front fork 3 passes through the head pipe and is hingedly connected to the vertical pipe 4 for hinged hinge The shaft shaft is disposed laterally, the upper end of the vertical pipe 4 is mounted with a handlebar, and the support tube 5 is disposed between the vertical pipe 4 and the vehicle beam 1. The lower end of the support rod 5 is hinged with the vehicle beam 1, and the upper end of the support rod is rotatably connected by the connecting seat 6. Connected to the standpipe, when the rider controls the handlebar to turn the standpipe 4, the standpipe 4 is free to rotate; the front end of the front fork 3 is mounted with the front wheel. The vehicle body includes a vehicle beam 1, the rear end of the vehicle beam 1 is mounted with a rear wheel; or the vehicle body includes a vehicle beam 1 and a bottom plate 8, a bottom plate 8 is installed behind the vehicle beam 1, and a rear wheel is mounted at the rear end of the bottom plate 8. The lower end of the support rod 5 can also be hinged to the bottom plate 8 of the vehicle body.

The connecting seat 6 has a first ring body 61 for fixing the vertical pipe 4, and the vertical pipe 4 is inserted into the first ring body; the connecting seat 6 has a second ring body 62 for mounting the upper end of the support rod 5; There is a vertical slit 63 at which the locking device 64 is disposed. The foregoing locking device may be a structure of a conventional tie rod, a nut, and an eccentric handle, that is, the pull rod penetrates the slit 63, the rod is provided with a nut at one end, and the eccentric handle is disposed at the other end. Pull the handle to release or lock the first ring. The locking device may also be a common screw or a nut. The screw is inserted through the slit 63 and locked by a nut. This method does not accidentally loosen due to vibration during riding, but requires a separate tool when opening. .

A bushing 7 is disposed between the connecting seat 6 and the standpipe, and the middle portion of the bushing has an annular groove 71, and the first ring body 61 is mounted on and engaged in the annular groove; the bushing 7 can follow The connecting seats 6 slide together on the standpipe. The lower end of the bushing 7 is provided with a vertical slit 72. The limiting device 73 passes through the slit 72 and is fixed to the vertical pipe 4, and the limiting device bears against the bottom of the connecting seat 6. The limiting device 73 can be a screw, a pin or the like, and the vertical tube 4 is provided with a threaded hole, and the limiting device 73 is mounted on the threaded hole. In the riding state, the limiting device 73 can withstand the bottom of the connecting base 6 and prevent it from sliding down, which can effectively ensure the stability of the steering mechanism of the scooter.

The upper end of the support rod 5 is provided with a corner bearing 51 which is sleeved in the second ring body 62 of the connecting seat. The angle bearing 5 can be fixed to the upper end of the support rod 5 by screws, and the head tube 2 shaft line L1 Passing through the corner point bearing center point O, since the angle branch bearing 51 is a spherical contact surface, this can ensure the free rotation of the front fork 3 during riding, and open the locking device 64 when the scooter is folded and stored as a whole. The tube 4 and the support rod 5 are lying down on the side of the rear wheel, and there is a relative rotation and a relative sliding displacement between the stand tube 4 and the support rod 5, and the angle support bearing 51 can perform this action well.

8-10 is a second embodiment of the folding bicycle of the present invention, the front end of the beam 1 is fixed to the head pipe 2, and the upper end of the front fork 3 passes through the head pipe and is hingedly connected to the vertical pipe 4 for hinged hinge shaft The upper end of the vertical tube 4 is provided with a handlebar, and the support rod 5 is disposed between the vertical tube 4 and the vehicle beam 1. The lower end of the support rod 5 is hinged to the vehicle beam 1, and the upper end of the support rod is rotatably connected through the connecting base 6 Standpipe, when the rider controls the handlebar to turn the standpipe 4, the standpipe 4 can be freely rotated; the front fork 3 is mounted on the front wheel, and the rear end of the beam 1 is mounted on the rear wheel.

The connecting seat 6 has a first ring body 61 for fixing the vertical pipe 4, and the vertical pipe 4 is inserted into the first ring body 6; the connecting seat 6 has a second ring body 62 for mounting the upper end of the support rod 5; There is a vertical slit 63 at which the locking device 64 is disposed. The locking device may be a structure of a conventional tie rod, a nut, and an eccentric handle, that is, the pull rod penetrates the slit 63, the rod is provided with a nut at one end, and the eccentric handle is disposed at the other end. The first ring body 6 can be loosened or locked by pulling the handle. The locking device may also be a common screw or a nut. The screw is inserted through the slit 63 and locked by a nut. This method does not accidentally loosen due to vibration during riding, but requires a separate tool when opening. .

A bushing is disposed between the connecting seat 6 and the standpipe, and the limiting device 73 is fixed on the standpipe 4. The structure and function of the bushing and the limiting device are the same as in the first embodiment.

The upper end of the support rod 5 is hinged to the T-shaped central member 52, and the T-shaped central member simultaneously articulates the second annular body 62. The T-shaped central member has a vertical hinge shaft and a lateral hinge shaft, and the two hinge shafts are perpendicular. The upper end of the support rod 5 is hingedly connected to the aforementioned lateral hinge shaft, and the second ring body 62 is hingedly connected to the vertical hinge shaft. The axis line of the vertical hinge shaft of the T-shaped center member overlaps with the head tube axis L1. Two vertically arranged hinge shafts can ensure the free rotation of the front fork 3, and when the scooter is folded and stored as a whole, the locking device 64 is opened, and the vertical tube 4 and the support rod 5 are lying down to the side of the rear wheel, and the vertical tube 4 is There is a relative rotation and relative sliding displacement between the support rods 5, and the T-shaped central member 52 can perform these two actions well.

11-12 show a third embodiment of the folding bicycle of the present invention. Most of the features of this embodiment are the same as those of the first or second embodiment, except that the connection between the support rod 5 and the connecting base 6 is different. In this example, the support rod 5 has a groove 53 at its upper end, and the pin 54 passes through the second ring body 62 of the connecting seat 6 and extends into the groove for connection, thereby ensuring that the support rod 5 and the connecting seat 6 are not It will loosen, and the connecting seat 6 and the support rod 5 can rotate relative to each other. The shaft line of the pin 54 overlaps with the head tube axis L1 to ensure smooth rotation. When the folding is required, the latch 54 is pulled upward to disengage the tail end of the latch 54 from the recess 5. At this time, the support rod 5 can be rotated to the rear side, and the stand tube 4 can also be independently rotated to the rear side until placed in a horizontal position. . The restoration of the installation process is exactly the opposite of the foregoing and will not be described again.

The connecting seat 6 has a first ring body for fixing the vertical pipe 4, and the vertical pipe 4 is inserted into the first ring body 6; the connecting seat 6 has a second ring body 62 for mounting the upper end of the support rod 5; the first ring body is provided with A vertical slit is provided at the slit. Because the connecting seat 6 does not need to slide up and down along the vertical tube 4 during the folding process of the embodiment, the locking device may be a matching structure of a screw or a nut, or may be a structure of a tie rod, a nut and an eccentric handle.

13-14 show a fourth embodiment of the folding bicycle of the present invention, and most of the features of the embodiment are compared with the second embodiment. The difference is that, in the folding process of the embodiment, the connecting seat 6 does not need to slide up and down along the vertical pipe 4, so the locking device may be a matching structure of a screw and a nut. In addition, a lateral hinge shaft is provided in the middle of the support rod 5, and a switch device 57 is provided at the lateral hinge shaft to lock or loosen the support rod upper portion 55 and the support rod lower portion 56. In the folding storage process, the switch device 57 is first opened, and at this time, the support rod upper portion 55 and the support rod lower portion 56 can be freely rotated relative to each other, and the standpipe 4 is pulled backward, and the standpipe 4 is turned backward to the rear wheel direction to realize folding and small volume. .

15-18 is a fifth embodiment of the folding bicycle of the present invention. This embodiment can combine all the technical features in the foregoing first, second, third and fourth embodiments, and the difference is that the embodiment also There is a foldable handlebar 10, and the foldable handlebar 10 has a linkage property. The specific implementation manner is that a vertical pipe 9 is disposed on the inner side of the upper end of the vertical pipe 4, and a vertical sliding groove 42 is disposed at an upper end of the vertical pipe 4, and a tightening seat 43 is disposed at a top end of the vertical pipe 4, and the tensioning seat 43 and the vertical pipe 4 are provided. The upper and lower relative movements are not allowed. For example, the tightening seat 43 may be formed by two symmetrical Ω-type splints, and the two clamping plates clamp the fixed vertical tube 4 while hingedly connecting one end of the connecting rod 92. The lower end of the riser 9 is fixedly connected to the first ring body 61; the upper end of the riser 9 is hinged to the two handlebars 10, and the two ends of the connecting rod 92 are respectively hinged to the middle of the handlebar 10 and the tightening seat 43. The fixing member 66 passes through the through hole 65 in the first ring body 61 and fixedly connects the lower end screw hole 91 of the riser. The fixing member 66 can move up and down in the sliding groove 42. The upper end of the riser 9 has a U-shaped seat, and the ends of the two handlebars 10 are respectively hinged to the U-shaped seat.

When folding the scooter, the locking device of the connecting seat 6 is opened, and the vertical pipe 4 and the supporting rod 5 are simultaneously turned to the rear side. At this time, the connecting seat 6 slides toward the upper end of the vertical pipe 4, because the connecting seat 6 and the rising pipe are 9 is fixed together, the riser 9 will be extended to the upper portion of the riser 4; based on the mechanical connection of the link 92 described above, the two handlebars 10 will automatically fold down, so that the folding handlebar does not need The separate action does not require the direct force exerted by the hand on the handlebar to complete the folding.

19-22 show a sixth embodiment of the folding bicycle of the present invention. The embodiment has the features of the fifth embodiment, and the difference is that the axial line of the head tube 2 does not have to pass through the angular bearing in this embodiment. The center point of 51 is different from the way in which the front fork 3 is connected to the standpipe 4. The specific structure of the present invention is that the upper end of the support rod 5 is provided with a corner bearing 51, which is sleeved in the second ring body 62 of the connecting seat; the upper end of the front fork 3 is fixedly provided with a connecting seat 301, and the connecting seat 301 has a front and rear direction through hole 3011, and a left and right lateral groove 3012, the through hole 3011 is perpendicular to the direction of the groove 3012; the connecting seat is provided with a cross member 302 provided with front and rear vertical axes 3021 and left and right a transverse shaft 3022, the vertical shaft is perpendicularly and fixedly connected to the transverse axis direction, the transverse shaft 3022 is disposed at the groove 3012 of the connecting seat 301; the lower end of the vertical tube 4 has a U-shaped arm 41, and the two sides of the U-shaped arm are respectively hinged The transverse axis 3022 of the cross member 302 is shown; the vertical axis 3021 of the cross member 302 is aligned with the through hole 3011 and hinged with the connecting base 301. The advantage of this scheme is that the standpipe support is relatively stable, and in addition, the standpipe can be easily adjusted. The front and rear angles are suitable for the needs of different riders. In addition, the present solution can have the foldable handlebar in the fifth embodiment at the same time, which is optional, and will not be described again here.

In the first, second, third, fourth and fifth embodiments, the first ring body 61 and the second ring body 62 have two different combinations. One is that, as shown in FIG. 5, the first ring body 61 and the second ring body 62 are of a unitary structure and are inseparable. Alternatively, as shown in FIGS. 9, 10, the first ring body 61 has a first elongated slot 66 at its end, and the second ring 62 has a second elongated slot 67 at its end, the first elongated slot 66. And the slot direction of the second elongated slot 67 is elongated along the front and rear direction of the vehicle beam; the screw penetrates the first elongated slot 66 and the second elongated slot 67 to connect the first ring body with The second ring is locked. The function of the first ring body 61 and the second ring body 62 in the split design is to adjust the distance between the first ring body 61 and the second ring body 62, in fact, the front and rear positions of the handlebars can be adjusted, since different riders have Different wingspans can be used to meet the needs of different riders.

In the first, second, third, fourth and fifth embodiments, the upper end of the front fork 3 is fixedly provided with a connecting seat 31, and the lower end of the vertical tube 4 has a U-shaped arm, and the two sides of the U-shaped arm are respectively hinged to the connecting seat 31, The articulated hinge axis is at a horizontal plane. As shown in Fig. 2, when folded and stored, the standpipe 4 is inverted toward the rear wheel, and the highest point of the U-shaped arm spans the position of the trailing edge of the connecting seat 3, so that the standpipe 4 can be placed in a very flat position while the front The wheels do not need to be rotated or moved, which minimizes the overall height of the scooter after folding, which is very advantageous for storage, transportation and portability purposes. As shown in FIG. 4, the connecting seat 31 has two vertically disposed side plates 311, and the two arms of the U-shaped arms are respectively hinged to the side plates; the side plates have horizontal elongated holes 312 through which the screws 313 will pass. The U-shaped arm is hinged to the side panel and the two screw ends are threaded to the sleeve 314. In this way, the front and rear positions of the screw 313 and the sleeve 314 in the horizontal plane can be adjusted, and in fact, the front and rear positions of the vertical tube 4 can be adjusted to meet the needs of the riders of different arm wings.

In the first, second, third, fourth, fifth and sixth embodiments, the support rod 5 has an "A" shape, the support rod has two legs, and the two legs are hingedly connected to the two sides of the vehicle beam 1 respectively. A shaft that extends laterally. In the present invention, the standpipe 4, the support rod 5 and the vehicle beam 1 form a triangular support, which is a very stable structure, which can greatly ensure the rotational flexibility and rigidity requirements of the standpipe 4. On the other hand, there are other scooters available on the market. There is only one standpipe from top to bottom and there is no other support. It is not known whether it can meet the safety standards.

23-26 show a seventh embodiment of the folding bicycle of the present invention. This embodiment combines most of the structural features of the sixth embodiment, including a foldable handlebar 10 having interlocking properties and a linkage structure. It is identical to the fifth embodiment and the sixth embodiment. In this embodiment, the manner in which the standpipe 4 and the front fork are linked is also the same as that of the sixth embodiment.

The specific implementation manner is that the riser 9 is sleeved on the inner side of the upper end of the standpipe 4, and the upper end of the standpipe 4 is provided with vertical slip The groove 42 and the top end of the vertical pipe 4 are provided with a tightening seat 43. The tightening seat 43 and the vertical pipe 4 are not movable up and down. For example, the tightening seat 43 can be composed of two symmetrical Ω-type splints, and the two clamping plates clamp the fixed vertical pipe. 4 At the same time, one end of the connecting rod 92 is hinged. The lower end of the riser 9 is fixedly connected to the first ring body 61 of the connecting seat 6; the upper end of the riser 9 is hinged to the two handlebars 10, and the two ends of the connecting rod 92 are respectively hinged to the middle of the handlebar 10 and the tightening seat 43. The fixing member 66 passes through the through hole 65 in the first ring body 61 and fixedly connects the lower end screw hole 91 of the riser. The fixing member 66 can move up and down in the sliding groove 42. The upper end of the riser 9 has a U-shaped seat, and the ends of the two handlebars 10 are respectively hinged to the U-shaped seat.

The first ring body 61 of the connecting seat 6 is used for fixing the vertical pipe 4, the connecting seat has a second ring body 62 for mounting the upper end of the support rod 5; the first ring body is provided with a slit 63, A locking device is provided at the slit.

The first ring body 61 and the second ring body 62 are sleeved on the vertical tube 4, and the first ring body 61 and the second ring body 62 are fixed together by a connecting ring 69. The first ring body 61 and the second ring body are fixed together. The body 62 is not movable up and down in the axial direction, and the second ring body 62 is relatively rotatable about the standpipe 4. The support rod 5 has two legs, and the two legs are respectively hingedly connected to the shaft extending laterally on both sides of the vehicle beam 1; the upper end of the support rod 5 is a double-headed structure, and the ends of the double-headed structure are respectively laterally hinged to the connecting ring 69.

24-26 is an eighth embodiment of the folding bicycle of the present invention. This embodiment is identical to most of the mechanisms of the seventh embodiment, except that the second ring body 62 is provided with an opening and has two openings at the opening. The lug 621 has two perforations; the upper end of the support rod 5 has a transverse through hole 58, and the upper end of the support rod 5 is hingedly connected to the two lugs.

Further, in the foregoing first to eighth embodiments, a foldable saddle device may be provided. The bottom end of the seat tube 81 is laterally hinged to the rear portion of the bottom plate 8. The lower end of the saddle struts 83 hinges the rear fork 82. The upper end of the saddle struts 83 is hinged to the collar 811, and the collar 811 can slide along the seat tube 81. The upper end of the seat tube 81 is sleeved with a seat rod 84. The saddle 85 is disposed on the seat rod 84. One end of the bottom surface of the saddle 85 is hinged to the seat rod 84, and the other end of the bottom surface of the saddle 85 is locked with the seat rod 84 by the locking handle 86. . As shown in Fig. 26, the saddle can be flattened with the bottom plate 8 after being folded as a whole, and does not occupy too much space.

In the foregoing first to eighth embodiments, the front wheel of the folding vehicle is only a single wheel structure, and the steering member of the vehicle is the front fork 3; of course, the foregoing embodiments are also applicable to another case, that is, the front of the folding vehicle. The wheels are two wheels that are side by side and have a certain spacing. At this time, the steering member passes through the head pipe and connects the two wheels respectively.

In the foregoing first to eighth embodiments, the U-shaped arm 41 at the lower end of the standpipe 4 is also hingedly provided with a wristband 44 so as to be able to be towed after the scooter is folded, which is very labor-saving.

The folding cart applicable to the mechanism of the present invention may include a common scooter, an electric scooter, a folding bicycle, Small motor vehicles, etc.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. Within the scope.

Claims

A folding vehicle, the front end of the beam (1) is fixed to the head pipe (2), wherein the steering member is hingedly connected to the vertical pipe (4) through a lateral hinge shaft, and the upper end of the support rod (5) is connected through the connecting seat (6) Rotatingly connected to the standpipe, the lower end of the support rod is hingedly connected to the vehicle body.
The folding cart according to claim 1, characterized in that the connecting seat (6) has a first ring body (61) for fixing the standpipe (4), and the connecting seat has a second ring body (62) For mounting the upper end of the support rod (5); the first ring body is provided with a slit (63), and the slit is provided with a locking device.
The folding cart according to claim 2, wherein the upper end of the support rod (5) is provided with a corner bearing (51), and the angle bearing is sleeved in the second ring body (62) of the connecting seat; Tube (2) axis line (L1) through the corner bearing center point O.
The folding cart according to claim 2, wherein the upper end of the support rod (5) hinges the lateral hinge shaft of the T-shaped central member (52), and the vertical hinge shaft of the T-shaped central member hinges the second ring body (62) The transverse hinge shaft of the T-shaped central member is perpendicular to the axis of the vertical hinge shaft; the axis line of the vertical hinge shaft of the T-shaped central member overlaps with the head tube axis (L1).
The folding cart according to claim 4, characterized in that the middle of the support rod (5) is provided with a lateral hinge shaft, and the lateral hinge shaft has a switching device (57) for locking or loosening the upper part of the support rod ( 55) with the lower part of the support rod (56).
A folding cart according to claim 2, wherein the upper end of the support rod (5) has a recess (53) through which the latch (54) extends and projects into the recess; The axis line of 54) overlaps with the head tube axis (L1).
The folding cart according to claim 2, characterized in that the standpipe (4) is radially provided with a limiting device (73) which bears against the bottom of the connecting seat (6).
The folding cart according to claim 7, characterized in that a bushing (7) is arranged between the connecting seat (6) and the standpipe, and the lower end opening of the bushing (7) is provided with a vertical slit (72) The limiting device (73) passes through the slit (72) and is fixed to the standpipe.
The folding cart according to claim 2, wherein the upper end of the support rod (5) is provided with a corner bearing (51), and the angle bearing is sleeved in the second ring body (62) of the connecting seat; The upper end of the fork (3) is fixedly provided with a connecting seat (301), the connecting seat is provided with a cross member (302), and the lower end of the vertical tube (4) has a U-shaped arm (41), and the two sides of the U-shaped arm are respectively hinged to the cross Piece (302).
The folding bicycle according to claim 2, wherein the first ring body (61) and the second ring body (62) are sleeved on the vertical pipe (4), between the first ring body and the second ring body Attached together by a connecting ring (69), the second ring The second ring body is oppositely disposed; the second ring body is provided with an opening, and has two lugs (621) at the opening thereof, the two lugs each having a through hole; the upper end of the support rod has a transverse through hole (58), the support rod The upper end is hingedly connected to the aforementioned two lugs.
The folding bicycle according to claim 2, wherein the first ring body (61) and the second ring body (62) are sleeved on the vertical pipe (4), the first ring body and the second ring body The ring bodies are fixed together by a connecting ring (69), and the second ring body can be relatively rotated around the vertical pipe; the upper end of the supporting rod (5) is a double-headed structure, and the ends of the double-headed structure are respectively laterally hinged to the connecting ring ( 69).
The folding bicycle according to any one of claims 1 to 8, characterized in that: the upper end of the front fork (3) is fixedly provided with a connecting seat (31), and the lower end of the vertical tube (4) has a U-shaped arm (41), a U-shaped arm Both sides are hinged to the connecting seat (31).
The folding cart according to claim 12, wherein said connecting seat (31) has two vertically disposed side plates (311), and two arms of the U-shaped arms are respectively hinged to said side plates; The plate has a horizontal elongated hole (312) through which the screw (313) hinges the U-shaped arm to the side plate and the two screw ends are threaded to the sleeve (314).
The folding bicycle according to any one of claims 2 to 8, characterized in that the first ring body (61) and the second ring body (62) have end portions each having an elongated slot through which the screw passes. The slotted hole locks the first ring body and the second ring body.
The folding cart according to any one of claims 2 to 11, characterized in that the upper end of the vertical pipe (4) is sleeved with a vertical pipe (9), and the upper end of the vertical pipe (4) is provided with a vertical sliding groove ( 42), the top end of the vertical pipe (4) is provided with a tightening seat (43), the lower end of the riser (9) is fixedly connected to the first ring body (61); the upper end of the riser (9) is hinged to the two handlebars ( 10), the two ends of the connecting rod (92) are respectively hinged to the middle of the handlebar (10) and the tightening seat (43).
The folding cart according to claim 15, wherein the fixing member (66) passes through the through hole (65) in the first ring body (61) and the screw hole (91) at the lower end of the riser tube is fixedly connected. The fixing member (66) is movable up and down within the chute (42).
The folding bicycle according to any one of claims 1 to 10, characterized in that the support rod (5) is of an "A" shape, the support rod has two legs, and the two legs are hingedly connected to the vehicle body respectively. A shaft that projects laterally laterally.
The folding cart according to any one of claims 1 to 11, characterized in that the bottom end of the seat tube (81) is laterally hinged to the bottom plate, and the lower end of the saddle support rod (83) is hinged to the rear fork, the saddle support The upper end of the rod is hinged to the collar (811), and the collar can slide along the seat tube; the upper end of the seat tube is sleeved with a seat rod (84), the saddle (85) is disposed on the seat rod, and the bottom end of the saddle is hinged to the seat. The rod, the other end of the bottom of the saddle is locked and locked by the locking handle.
A folding cart according to any one of claims 1 to 11, characterized in that the lower end of the standpipe (4) A wristband (44) is also hingedly provided.