CN109774842B

CN109774842B - Linkage mechanism

Info

Publication number: CN109774842B
Application number: CN201910254879.5A
Authority: CN
Inventors: 李静
Original assignee: Yongkang Roing Industry & Trade Co ltd
Current assignee: Yongkang Roing Industry & Trade Co ltd
Priority date: 2019-01-23
Filing date: 2019-03-29
Publication date: 2024-03-29
Anticipated expiration: 2039-03-29
Also published as: CN209757394U; WO2020151099A1; CN209757395U; CN109850045A; CN209757393U; CN109774842A; CN209757392U; CN109850045B; CN209938848U

Abstract

The invention relates to the technical field of folding scooter, in particular to a linkage mechanism which comprises a support pipe, wherein a folding handrail is arranged at the upper end of the support pipe, and the support pipe is rotatably arranged on a scooter pedal through a second folding device; the folding handrail is connected with the second folding device through the linkage mechanism, an unlocking button is arranged in the folding handrail, the folding handrail and the handrail tube can be folded at the same time by pressing the unlocking button.

Description

Linkage mechanism

Technical Field

The invention relates to the technical field of folding scooter, in particular to a linkage mechanism.

Background

The folding scooter greatly increases the diversified selection of people to the trip mode, often can adopt the trip mode of sitting on the subway or public transit and folding scooter combination, current folding scooter sets up folding device for between car pipe and the footboard, make car pipe and footboard fold together, reduce space occupation rate, folding scooter as disclosed in [ chinese invention ] CN201820530178.0, this scooter includes the footboard, set up in the wheel of this footboard front portion and rear portion, set up the inserted bar on this footboard, set up in the handrail of this inserted bar upper end, the front portion upside of footboard is equipped with the jack, and the lower extreme of this inserted bar is inserted in this jack, simultaneously, is equipped with the draw-in hole on the lateral wall of this jack, and the lower extreme of this inserted bar is equipped with elastic fixture block, and this elastic fixture block matches with this draw-in hole, through pressing the button of the lower position in the middle part of the inserted bar, can fold between inserted bar and the footboard.

The current scooter is including two folding mechanism, is used for the folding of handrail and the folding of handrail pipe respectively, when needs folding scooter, just can carry out folding operation to the scooter after opening two folding switch respectively, this kind of operation mode, and is very inconvenient and laborious.

Disclosure of Invention

The invention aims to provide a linkage mechanism, which can drive a second folding device through the linkage mechanism by rotating a folding handrail to fold the handrail and a handrail tube simultaneously and has the advantage of simple and convenient operation.

The purpose of the invention is realized in the following way: the linkage mechanism comprises a support pipe, wherein a folding handrail is arranged at the upper end of the support pipe, and the support pipe is rotatably arranged on a pedal of the vehicle through a second folding device; the second folding device comprises a locking device and a fork tube, the folding handrail is connected with the second folding device through a linkage mechanism, an unlocking button is arranged in the folding handrail, and the folding handrail and the fork tube can be folded simultaneously by pressing the unlocking button.

Preferably, the linkage mechanism is a steel wire rope group, and the folding handrail is connected through the steel wire rope group and drives the second folding device.

Preferably, an arc-shaped slideway is arranged in the locking device, a sliding block is arranged in the fork tube, a fixed shaft is arranged at the lower end of the sliding block in a penetrating way, and the fixed shaft is slidably arranged in the arc-shaped slideway.

Preferably, locking clamping grooves are formed at the two ends of the arc-shaped slide rail inwards, and the folding handrail can be driven by the linkage mechanism to generate relative displacement between the sliding block and the fork tube, so that the fixed shaft is driven to move in the arc-shaped slide rail.

Preferably, the lower part slidable of holding up the pipe is provided with the sliding head, and the upper end of slider is formed with confession the extruded inclined plane of sliding head, folding handrail passes through link gear connects and drives the sliding head, through rotatory folding handrail can make the sliding head moves in holding up the pipe, thereby extrudees the inclined plane, and then drives the slider and move in the fork pipe.

Preferably, the upper end of the sliding head is provided with a fixing head, the fixing head is positioned at the upper end of the inclined surface and is fixed on the support pipe, and a second spring is abutted between the fixing head and the sliding head.

Preferably, the middle part of slider has seted up the cavity, and semicircular hole that is used for making the fastener pass is seted up to one side of cavity, the butt has the third spring between fastener and the cavity.

Preferably, a locking device is mounted at the front of the pedal, and the lower end of the support pipe is rotatably connected with the locking device through a fork pipe so as to be rotatably folded.

Compared with the prior art, the invention has the following outstanding and beneficial technical effects:

1. according to the folding device, after the unlocking button is pressed, the handrail can be folded, and the second folding device is driven by the arranged linkage mechanism when the handrail is folded, so that the folding operation of the vehicle body can be performed at the moment.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of the folded state of the present invention.

Fig. 3 is a schematic diagram of an explosive structure according to the present invention.

Fig. 4 is a top view of the present invention.

Fig. 5 is a cross-sectional view of the structure at A-A in fig. 4.

Fig. 6 is an enlarged schematic view of the structure at B in fig. 5.

Fig. 7 is an enlarged schematic view of the structure at C in fig. 5.

Fig. 8 is a schematic view of a folding action of the folding handrail.

Fig. 9 is a schematic structural view of a first folding device.

Fig. 10 is a top view of a folded handrail.

Fig. 11 is a cross-sectional view of the structure at D-D in fig. 10.

Fig. 12 is a front view of the folding handrail.

Fig. 13 is a cross-sectional view of the structure at E-E in fig. 12.

Fig. 14 is a top view of the handrail tube and the folded handrail.

Fig. 15 is a cross-sectional view of the structure of fig. 13 at F-F.

Reference numerals: 1-a pedal; 2-supporting the pipe; 3-folding the handrail; 3 a-left armrest; 3 b-right armrest; 4-a first folding device; 4 a-right driving wheel; 4 b-a left driving wheel; 5-an unlock button; 6-clamping part; 7-an armrest cover; 8-a pressing part; 9-a first spring; 10-a bracket; 11-hole site; 12-gear teeth; 13 A-A clamping groove; 13 b-a second unlocking slot; 13 c-a third card slot; 14-locking means; 15-fork tube; 16-a rotation hole; 17-a fastener; 18-arc slide way; 19-a slider; 20-fixing the shaft; 21-a locking detent; 22-a sliding head; 23-inclined plane; 24-wire rope group; 25-fixing the head; 26-a second spring; 27-a cavity; 28-semicircle holes; 29-a third spring; 30-an inner tube; 31-a sheath; 32-elastic openings; 33-quick release; 34-spring pin members; 35-bump; 36-positioning holes; 37-front wheel; 38-rear wheel.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to FIGS. 1-15.

A linkage mechanism.

As shown in fig. 1, the bicycle comprises a bicycle pedal 1, a rotatable support pipe 2 is connected to the front part of the bicycle pedal 1, the support pipe 2 is rotatably arranged at the front end of the bicycle pedal 1 through a second folding device, a folding handrail 3 is arranged at the upper end of the support pipe 2, a front wheel 37 is arranged at the lower end of the support pipe 2, and a rear wheel 38 is arranged at the rear part of the bicycle pedal 1.

With reference to fig. 1 and 2, after the unlocking button 5 is pressed, the folding handrail 3 can be rotated downward to perform folding operation, and the handrail 2 can also be rotated to one side of the pedal 1 to perform folding operation.

Referring to fig. 8 and 9, the first folding device 4 includes a right driving wheel 4a and a left driving wheel 4b, the right end of the left handrail 3a is connected with the right driving wheel 4a, the left end of the right handrail 3b is connected with the left driving wheel 4b, the right driving wheel 4a and the left driving wheel 4b are abutted against each other, the right driving wheel 4a and the left driving wheel 4b respectively rotate inwards with respective circle centers as axes, so as to achieve the folding function, gear teeth 12 are formed on the right driving wheel 4a and the left driving wheel 4b, the right driving wheel 4a and the left driving wheel 4b can be meshed with each other through the gear teeth 12, and at least one clamping groove 13a matched with the clamping portion 6 is formed on the end face of the right driving wheel 4a and/or the left driving wheel 4b, and when the clamping portion 6 is clamped in the clamping groove 13a, the rotation between the right driving wheel 4a and the left driving wheel 4b can be limited.

Referring to fig. 10 and 11, a handrail cover 7 is mounted on the outer sides of the right driving wheel 4a and the left driving wheel 4b, an unlocking button 5 capable of moving forward and backward is disposed between the right driving wheel 4a and the left driving wheel 4b, a clamping portion 6 is formed at one end of the unlocking button 5, and the clamping portion 6 is clamped between the right driving wheel 4a and the left driving wheel 4b and limits rotation thereof.

Referring to fig. 11 and 13, the other end of the unlocking button 5 extends out of the armrest cover 7 and forms a pressing portion 8, and a first spring 9 is disposed between the clamping portion 6 and the armrest cover 7, so that after the external force pressed by the pressing portion 8 is removed, the unlocking button 5 will spring back to the original position due to elastic deformation of the first spring 9, a bracket 10 is further installed between the right driving wheel 4a, the left driving wheel 4b and the armrest cover 7, hole sites 11 are respectively formed on the left and right sides of the bracket 10, and the right driving wheel 4a and the left driving wheel 4b are rotatably disposed on the hole sites 11 with respective circle centers as axes.

Referring to fig. 5 and 6, for better implementation, a locking device 14 is installed at the front part of the pedal 1, the lower end of the supporting tube 2 is rotatably connected with the locking device 14 through a fork tube 15, a rotating hole 16 is formed in the locking device 14, one end of the fork tube 15 is rotatably fixed in the rotating hole 16 through a fastening piece 17, the fork tube 15 can be rotatably folded relative to the pedal 1, in particular, an arc-shaped slideway 18 is formed in the locking device 14, concave locking clamping grooves 21 are formed at two ends of the arc-shaped slideway 18, a sliding block 19 is installed in the fork tube 15, a fixed shaft 20 is penetrated at the lower end of the sliding block 19, the fixed shaft 20 can slide in the arc-shaped slideway 18, the sliding block 19 and the fork tube 15 can be directly or indirectly made to relatively displace through rotating the folding handrail 3, the fixed shaft 20 is further driven to move in the arc-shaped slideway 18, a cavity 27 is formed in the middle part of the sliding block 19, one side of the cavity 27 is provided with a semicircular hole 28 for allowing the fastening piece 17 to pass through, and a third spring 29 is abutted against the cavity 27.

Referring specifically to fig. 7, a sliding head 22 is slidably disposed at the lower portion of the handrail 2, a steel wire rope set 24 is fixed on the folded handrail 3, the other end of the steel wire rope set 24 is fixedly connected with the sliding head 22, an inclined surface 23 for the sliding head 22 to squeeze is formed at the upper end of the sliding block 19, the folded handrail 3 is connected and drives the sliding head 22 through a linkage mechanism, the sliding head 22 can move in the handrail 2 through rotating the folded handrail 3, so as to squeeze the inclined surface 23 and further drive the sliding block 19 to move in the fork 15, a fixing head 25 is mounted at the upper end of the sliding head 22, the fixing head 25 is located at the upper end of the inclined surface 23 and is fixed on the handrail 2, a second spring 26 is abutted between the fixing head 25 and the sliding head 22, after the unlocking button 5 is pressed, the folded handrail 3 can be folded through the set linkage mechanism, namely the steel wire rope set 24, and the handrail 2 can be simultaneously folded in a rotating manner without pressing other folding operations.

Referring to fig. 14 and 15, the inner tube 30 is disposed in the support tube 2 in a penetrating manner, the elastic pin member 34 is clamped in the inner tube 30, the other end of the pin member 34 extends out of the inner tube 30 and is formed with a bump 35, and the pin member 34 is compressed after the bump 35 is pressed due to the elasticity of the pin member 34, so that the bump 35 can retract into the support tube 2, and the support tube 2 and the inner tube 30 can move relatively at this time, so that the height can be adjusted, and a plurality of positioning holes 36 for the bump 35 to pass through are formed in the support tube 2. The upper end of the inner tube 30 extends out of the holding tube 2 and is connected with the folding handrail 3, a sheath 31 is arranged between an opening at the upper end of the holding tube 2 and the inner tube 30, an elastic opening 32 is arranged at the opening at the upper end of the holding tube 2, and a quick-release piece 33 is arranged at the periphery of the elastic opening 32.

The specific working process of the folding product is as follows:

firstly, the unlocking button 5 in the handrail cover 7 is pressed, namely the pressing part 8 is pressed by applying force, at the moment, the clamping part 6 of the unlocking button 5 is separated from the clamping grooves 13a on the right driving wheel 4a and the left driving wheel 4b, the first spring 9 is compressed, at the moment, the right driving wheel 4a and the left driving wheel 4b can rotate relatively, and the pressing part 8 can not be pressed any more, at the moment, the clamping part 6 is forced to restore to the original position due to the elastic deformation of the first spring 9, therefore, when the right driving wheel 4a and the left driving wheel 4b rotate, the clamping part 6 is attached to the surfaces of the right driving wheel 4a and the left driving wheel 4b, then the gear teeth 12 are meshed mutually, namely the left handrail and the right handrail can be rotated and folded, because the steel wire rope group 24 is fixed on the folded handrail 3, then when the folded handrail 3 rotates downwards, the right driving wheel 4a and the left driving wheel 4b rotate inwards simultaneously, the steel wire rope 28 is pulled to shorten the length of the steel wire rope 28, so that the sliding head 22 connected below the steel wire rope 28 is driven to move upwards, when the folding handrail 3 is folded to 45 degrees, the clamping part 6 is automatically clamped into the second unlocking groove 13b, folding operation is convenient, meanwhile, in the process of rotating the folding handrail 3, the sliding head 22 moves upwards, the second spring 26 is compressed, the sliding head 22 just moves upwards to the position of the inclined surface 23 of the sliding block 19, then the sliding head 22 pushes the sliding block 19 downwards, the sliding block 19 moves downwards, the third pressure spring 29 is compressed when the sliding block 19 moves downwards, the fixed shaft 20 arranged on the sliding block 19 moves into the arc-shaped slide way 18 from the locking clamping groove 21, the fork tube 15 can rotate leftwards and fold, the fixed shaft 20 slides leftwards in the arc-shaped slide way 18, until the pin shaft slides to the far left, the straight pipe 13 can not slide to the left any more, the straight pipe 13 is in a fully folded state, after the scooter is in the fully folded state, the folding handrail 3 is folded from 45 degrees to 90 degrees, the steel wire rope group 24 is pulled continuously, the length of the steel wire rope group 24 is further shortened, the sliding head 22 moves upwards, the second spring 26 is compressed further, the sliding head 22 moves to the upper end of the inclined surface 23, leaves the inclined surface 23, the sliding head 22 does not push the sliding block 19 downwards any more, and because the inclined surface 22 loses the pressure exerted by the sliding head 22, the compressed third pressure spring 29 at the other end of the sliding block 19 releases the pressure, the third pressure spring 29 stretches to an opened state, so that the sliding block 19 can be pushed upwards, when the sliding block 19 moves upwards, the fixed shaft 20 enters the locking clamping groove 21 again from the arc-shaped sliding way 18, and when the folding handrail 3 is folded to 90 degrees, the clamping part 6 is clamped into the third clamping groove 13c automatically, the structure of the scooter is in a locked state, and the folded handrail is in a locked state, and the locked state is not loose, so that the scooter is convenient to take.

The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The linkage mechanism is characterized by comprising a support pipe (2), wherein a folding handrail (3) is arranged at the upper end of the support pipe (2), and the support pipe (2) is rotatably arranged on a pedal (1) of the vehicle through a second folding device; the second folding device comprises a locking device (14) and a fork tube (15), the folding handrail (3) is connected with the second folding device through a linkage mechanism, an unlocking button (5) is arranged in the folding handrail (3), and the folding handrail (3) and the handrail tube (2) can be folded simultaneously by pressing the unlocking button (5);

the folding handrail (3) comprises a left handrail (3 a) and a right handrail (3 b), the right end of the left handrail (3 a) is connected with a right driving wheel (4 a), and the left end of the right handrail (3 b) is connected with a left driving wheel (4 b); the right driving wheel (4 a) is abutted against the left driving wheel (4 b), and the right driving wheel (4 a) and the left driving wheel (4 b) are rotated and folded by taking the respective circle centers as axes;

an unlocking button (5) capable of moving forwards and backwards is arranged between the right driving wheel (4 a) and the left driving wheel (4 b), and a clamping part (6) is formed at one end of the unlocking button (5); the clamping part (6) is used for being clamped between the right driving wheel (4 a) and the left driving wheel (4 b) and limiting the rotation of the right driving wheel and the left driving wheel;

the end face of the right driving wheel (4 a) and/or the end face of the left driving wheel (4 b) are/is formed with a clamping groove (13 a), a second unlocking groove (13 b) and a third clamping groove (13 c) which are matched with the clamping part (6), and the clamping groove (13 a), the second unlocking groove (13 b) and the third clamping groove (13 c) are respectively and sequentially arranged on the outer edge part of the right driving wheel (4 a) and/or the outer edge part of the left driving wheel (4 b) and are used for being matched with the clamping part (6) in different folding stages; a first spring (9) is arranged between the clamping part (6) and the armrest cover (7).

2. A linkage mechanism according to claim 1, wherein: the linkage mechanism is a steel wire rope group (24), and the folding handrail (3) is connected with and drives the second folding device through the steel wire rope group (24).

3. A linkage mechanism according to claim 1, wherein: an arc-shaped slideway (18) is arranged in the locking device (14), a sliding block (19) is arranged in the fork tube (15), a fixed shaft (20) is arranged at the lower end of the sliding block (19) in a penetrating mode, and the fixed shaft (20) is slidably arranged in the arc-shaped slideway (18).

4. A linkage according to claim 3, wherein: locking clamping grooves (21) are formed in the inner sides of the two ends of the arc-shaped slide rail (18), the folding handrail (3) can be driven by the linkage mechanism to relatively displace with the fork tube (15) through the sliding block (19), and then the fixing shaft (20) is driven to move in the arc-shaped slide rail (18).

5. A linkage mechanism according to claim 1, wherein: the lower part slidable of handrail (2) is provided with slider (22), and the upper end of slider (19) is formed with confession slider (22) extruded inclined plane (23), folding handrail (3) are passed through link gear connects and drives slider (22), through rotatory folding handrail (3) can make slider (22) remove in handrail (2), thereby extrudees inclined plane (23), and then drives slider (19) and remove in fork tube (15).

6. A linkage mechanism according to claim 5, wherein: the upper end of the sliding head (22) is provided with a fixing head (25), the fixing head (25) is positioned at the upper end of the inclined surface (23) and is fixed on the support pipe (2), and a second spring (26) is abutted between the fixing head (25) and the sliding head (22).

7. A linkage mechanism according to claim 6, wherein: the middle part of slider (19) has seted up cavity (27), and semicircle hole (28) that are used for making fastener (17) pass are seted up to one side of cavity (27), the butt has third spring (29) between fastener (17) and cavity (27).

8. A linkage mechanism according to claim 1, wherein: the front part of the pedal (1) is provided with a locking device (14), and the lower end of the support pipe (2) is rotatably connected with the locking device (14) through a fork pipe (15) so as to carry out rotary folding.