CN113682408A

CN113682408A - Motor tricycle with rocking mechanism

Info

Publication number: CN113682408A
Application number: CN202111162763.2A
Authority: CN
Inventors: 张立鹏; 崔宇航
Original assignee: Tianjin Internal Combustion Engine Research Institute (tianjin Motorcycle Technical Center)
Current assignee: Tianjin Internal Combustion Engine Research Institute (tianjin Motorcycle Technical Center)
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2021-11-23

Abstract

The invention discloses a motor tricycle with a swing mechanism, which comprises a frame main beam pipe, pedals, a handlebar, a rear wheel, two front wheels, a swing mechanism and a locking mechanism matched with the swing mechanism, wherein the front wheels are arranged on the frame main beam pipe; the front wheel shaft is connected with the swing mechanism so that the front wheel moves up and down along with the swing mechanism, and the swing of the motor tricycle is realized; the rocking mechanism includes: the support is fixed on the head tube, an upper support arm and a lower support arm on the front wheel shaft, and the upper swing arm and the lower swing arm form a parallelogram structure, and the rocker arm, the two shock absorbers and the lower swing arm also form a parallelogram structure; the latch mechanism is used to limit the swinging of the rocker arm when needed.

Description

Motor tricycle with rocking mechanism

Technical Field

The invention relates to the field of motor tricycles, in particular to an electric motor tricycle with a swing mechanism.

Background

The existing steering mechanism of the motor tricycle has larger steering amplitude, so that the motor tricycle is easy to topple over in the process of fast running and causes physical injury to passengers. In order to overcome the defect, the electric motor tricycle on the market at present is provided with a plurality of electric control devices such as a gravity sensor and a speed sensor at the front wheel so as to overcome the injury caused by the toppling, but the structure is complex and the cost is high. Therefore, the electric motor tricycle is required to be capable of realizing swinging and locking the swinging mechanism during braking, and the swinging safety is improved.

Disclosure of Invention

The invention aims to solve the defects of the prior art and provides a motor tricycle with a swing mechanism, wherein the motor tricycle does not use a sensor, the front wheel is provided with the swing mechanism, so that the swing of the motor tricycle during the running process is realized, meanwhile, the swing mechanism is provided with a locking mechanism, so that the swing mechanism is locked during the braking process, the swing mechanism is a double-parallelogram mechanism, so that the safety and the practicability of the motor tricycle are enhanced, and the swing mechanism is provided with two parallel and longitudinally-arranged shock absorbers, so that the shock absorbers adopt a cantilever connection mode, and the light-weight design of a vehicle body is facilitated.

A motor tricycle with a swing mechanism comprises a power source, a control and driving system, a wheel braking system, a main beam pipe, a frame, handlebars, rear wheels and two front wheels, wherein the handlebars are fixedly connected with one ends of steering rods, the other ends of the steering rods are rotatably connected with one ends of a head pipe, the head pipe is fixedly connected with the front end of the main beam pipe, the rear end of the main beam pipe is connected with the frame, and the front wheels are provided with front wheel shafts; the swing mechanism is matched with the locking mechanism; the front wheel shaft is connected with the swing mechanism so that the front wheel moves up and down along with the swing mechanism, and the swing of the motor tricycle is realized;

a steering knuckle is sleeved on the inner side of the front wheel shaft and comprises a shaft neck sleeved on the front wheel shaft, an upper support arm extending outwards and a lower support arm;

the rocking mechanism includes: the device comprises an upper swing arm, a lower swing arm, a rocker arm, a longitudinally arranged shock absorber and a bracket; the bracket is fixed on the head tube, the longitudinal center line of the bracket is parallel to the axis of the head tube, and the bracket is respectively provided with a second connecting shaft, a third connecting shaft and a first connecting shaft from top to bottom; the second connecting shaft is used for penetrating through a hole in the middle of the rocker arm, so that the rocker arm can rotate around the second connecting shaft; the two ends of the rocker arm are respectively and fixedly connected with the upper end of a shock absorber, and the lower end of the shock absorber is fixedly connected to the lower swing arm; the end parts, far away from the head tube, of the upper swing arms are respectively fixedly connected with the upper support arms of the front wheel shaft, and the other ends of the upper swing arms penetrate through the third connecting shaft, so that the upper swing arms can rotate around the third connecting shaft; the end parts of the lower swing arms, far away from the head pipe, are respectively fixedly connected with the lower arms of the front wheel shaft, and the other ends of the lower swing arms penetrate through the first connecting shaft, so that the lower swing arms can rotate around the first connecting shaft;

the locking mechanism includes: the locking wrench, the pull wire, the locking pliers and the locking disc; the locking spanner is arranged on the steering rod, one end of the pull wire is connected with the locking spanner, the other end of the pull wire is connected with one end of the locking pliers, the locking pliers are provided with two wings, and a through hole is formed in the top of one end of each wing part and used for penetrating through the pull wire connected with the locking spanner; the locking pliers partially wrap and clamp the locking disc; the locking plate is of an inverted U-shaped structure, and two ends of the locking plate are respectively fixed at two ends of the rocker arm.

Furthermore, the first connecting shaft, the second connecting shaft, the third connecting shaft and the fourth connecting shaft are all rotating shafts and are collinear.

Furthermore, a fourth connecting shaft is further arranged on the support, the fourth connecting shaft is located between the third connecting shaft (19) and the first connecting shaft (15), the fourth connecting shaft (20) is used for penetrating through the end portions of two steering pull rods (191), the other end portions of the steering pull rods (191) are respectively and fixedly connected with steering knuckles of a front wheel shaft, and the steering pull rods are used for steering front wheels.

Furthermore, the steering pull rod is of an arc-shaped structure, so that the steering pull rod is prevented from contacting with an upper swing arm of the swing mechanism during steering.

Furthermore, the upper swing arm and the lower swing arm are positioned on the same horizontal line with the connecting parts of the upper support arm and the lower support arm.

Further, when the locking spanner faces upwards, the pull wire pulls the locking pliers to clamp the locking disc, so that the rocker arm cannot swing; when the locking spanner faces downwards, the locking pliers do not clamp the locking disc, and the swinging mechanism can swing.

Further, two dampers are arranged in parallel.

Compared with the prior art, the invention has the beneficial effects and remarkable progresses that:

the swing mechanism is provided with two parallel shock absorbers which are longitudinally arranged; one end of the shock absorber is connected with the rocker arm, and the other end of the shock absorber is connected with the lower swing arm, so that the shock absorber adopts a cantilever connection mode, and the light weight design of a vehicle body is facilitated;

the swing mechanism is a double-parallelogram mechanism, an upper support arm, a lower support arm, an upper swing arm and a lower swing arm form a parallelogram structure, and the rocker arm, the two shock absorbers and the lower swing arm form a second flat quadrilateral structure, so that the safety and the practicability of the motor tricycle are enhanced.

Drawings

FIG. 1 is a schematic view of a motor tricycle with a rocking mechanism according to the present invention;

FIG. 2 is a front view of the rocking mechanism and locking mechanism of the present invention;

fig. 3 is a rear view of the rocking mechanism and locking mechanism of the present invention.

In the figure:

10: the head pipe 30: rear wheels 51, 52: front wheel

70: frame main beam pipe 17: the damper 13: upper swing arm

14: lower swing arm 15: first connecting shaft 16: second connecting shaft

18: the support 19: third connecting shaft 20: fourth connecting shaft

511, 521: the wheel shaft 171: locking wrench 173: locking pliers

174: the locking disc 175: rocker arms 512, 522: upper support arm

513, 523: lower arm 191: steering linkage

Detailed Description

In order to make the objects, technical solutions, advantages and significant progress of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings provided in the embodiments of the present invention, and it is obvious that all of the described embodiments are only some embodiments of the present invention, but not all embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "fixed," "connected," and the like are to be understood broadly, and for example, may be fixedly connected, detachably connected or movably connected, or may be integrated; the connection can be direct connection, indirect connection through an intermediate medium or invisible signal connection, and can be the communication inside two elements or the interaction relation of the two elements; unless otherwise specifically defined, specific meanings of the above terms in the present invention can be understood as specific conditions by those of ordinary skill in the art.

Example 1

As shown in fig. 1-3, an electric motor tricycle with a swing mechanism comprises a battery, a control and drive system, a wheel brake system, a main beam tube 70, a frame, a handlebar, a rear wheel 30 and two

front wheels

51,52, wherein the handlebar is fixedly connected with one end of a steering rod, the other end of the steering rod is rotatably connected with one end of a head tube 10, the head tube 10 is fixedly connected with the front end of the main beam tube, and the rear end of the main beam tube is connected with one end of the frame; the other end of the frame is connected with a rear bottom fork, and a rear wheel 30 is arranged on the rear bottom fork; and a battery bin is also arranged at the rear part of the frame. The electric motor tricycle also comprises a swing mechanism and a locking mechanism matched with the swing mechanism. The front wheel shaft is connected with the swing mechanism so that the front wheel moves up and down along with the swing mechanism, and therefore the swing of the motor tricycle is achieved. The control and drive system of the motor tricycle and the brake system of the wheels are common knowledge and are not described in detail herein.

The rocking mechanism includes: upper swing arm 13, lower swing arm 14, rocker arm 175, shock absorber 17, and bracket 18.

The bracket 18 is arranged between the two

front wheels

51 and 52 and positioned at the front part of the head tube 10, the upper end of the bracket 18 is fixed on the head tube 10, and the longitudinal center line of the bracket 18 is arranged in parallel with the head tube; the bracket 18 is respectively provided with a second connecting shaft 16, a third connecting shaft 19, a fourth connecting shaft 20 and a first connecting shaft 15 from top to bottom, and the second connecting shaft 16, the third connecting shaft 19, the fourth connecting shaft 20 and the first connecting shaft 15 can be integrally formed with the bracket 18 or can be connected in a riveting or welding manner. The second connecting shaft 16 and the first connecting shaft 15 protrude from the outer surface of the bracket 18 towards the driving front, the third connecting shaft 19 is located in the middle of the bracket, and the fourth connecting shaft 20 protrudes from the outer surface of the bracket 18 towards the frame direction.

The middle part of the rocker arm 175 is provided with a hole for penetrating the second connecting shaft 16 and can rotate around the second connecting shaft 16; two ends of the rocker arm 175 are respectively and fixedly connected with the upper end of the shock absorber 17; the two shock absorbers 17 are arranged in parallel; the lower end of the shock absorber 17 is fixedly connected to a panel extending out of the side wall of the lower swing arm 14 through bolts, and the design enables the shock absorber 17 to adopt a cantilever connection mode, so that the light-weight design of a vehicle body is facilitated. The rocker arm 175, the two shock absorbers 17, and the lower swing arm 14 form a parallelogram structure.

The inner sides of the

front wheel shafts

511 and 521 are sleeved with steering knuckles, the steering knuckles comprise journals sleeved with the front wheel shafts,

upper arms

512 and 522 and

lower arms

513 and 523 extending outwards, and shaft parts extending towards the direction of the head tube 10, and the shaft parts are used for fixedly connecting one ends of steering pull rods 191.

Go up support arm, lower support arm, go up the swing arm and down the swing arm and formed parallelogram structure, concrete structure is as follows:

two ends of the upper swing arm 13 are in an annular structure, one end of the upper swing arm is respectively sleeved on the

upper support arms

512 and 522 and fixed by rivets, the other end of the upper swing arm is sleeved on the third connecting shaft 19, and the upper swing arm 13 can rotate relative to the third connecting shaft 19.

Two ends of the lower swing arms 14 are of annular structures, one ends of the lower swing arms are respectively sleeved on the

lower support arms

513 and 523 and fixed by rivets, the other ends of the lower swing arms are sleeved on the first connecting shaft 15, and the lower swing arms 14 can rotate relative to the first connecting shaft 15.

The steering of steering linkage 191 for the front wheel is the arc structure and both ends are the loop configuration, and a tip cover of steering linkage 191 is established on the fourth connecting axle 20 and can be relative the fourth connecting axle 20 is rotatory, the fixed cover of another tip of steering linkage 191 is established the knuckle face to the axial region that the locomotive head pipe 10 direction was stretched out.

The first connecting shaft 15, the second connecting shaft 16, the third connecting shaft 19 and the fourth connecting shaft 20 are all rotating shafts and are collinear. The locking mechanism includes: a locking wrench 171, a wire, a locking tong 173, and a locking disk 174; the locking wrench 171 is arranged on the steering rod, one end of the pull wire is connected with the locking wrench 171, the other end of the pull wire is connected with one end of the locking pliers 173, the locking pliers 173 has two wings, and the top of one end of each wing part is provided with a through hole for the pull wire connected with the locking wrench to pass through; the locking clamp 173 partially wraps around and clamps the locking plate 174; the locking plate has an inverted U-shaped structure, and both ends of the locking plate are fixed to both ends of the rocker arm 175.

Because the support 18 is fixedly connected with the head tube, two ends of the upper swing arm and the lower swing arm are respectively fixed on the upper support arm and the lower support arm, the front wheel can swing up and down along with the swing mechanism by two flat quadrilateral structures formed by the swing mechanism, and the fluctuation degree of the front wheel is determined according to the rigidity of the shock absorber.

When the steering device is used, when a rider leans rightwards, the handlebar is turned rightwards, the steering rod rotates along with the handlebar to drive the head pipe 10 connected with the steering rod to rotate, the head pipe 10 drives the support 18 fixedly connected with the head pipe to swing, the upper swing arm 13, the lower swing arm 14 and the steering pull rod 191 are driven to swing around the first connecting shaft 15, the third connecting shaft 19 and the fourth connecting shaft 20, and the lower end of the shock absorber 17 is fixed on the lower swing arm 14, so that the shock absorber 17 moves up and down in a displacement mode, and the rocker arm 175 is driven to rotate around the second connecting shaft 16. When the rider plans to stop the rocking, the locking wrench 171 is adjusted upward, and the locking tong 173 grips the locking disc 174 under the action of the wire 172, so that the rocker arm 175 cannot rock. When the rocking mechanism is turned on, the rider adjusts the lock wrench 171 downward, the lock jaws 173 do not grip the lock disk 174, and the rocking mechanism can rock.

Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made on the technical solutions described in the foregoing embodiments, or some or all of the technical features of the embodiments can be replaced with equivalents, without departing from the scope of the embodiments of the present invention, and the technical solutions can not be modified or replaced by the modifications, the modifications and the substitutions in the non-essential scope of the present invention.

Claims

1. A motor tricycle with a swing mechanism comprises a power source, a control and driving system, a wheel braking system, a main beam pipe (70), a frame, a handlebar, a rear wheel (30) and two front wheels (51, 52), wherein the handlebar is fixedly connected with one end of a steering rod, the other end of the steering rod is rotatably connected with one end of a head pipe (10), the head pipe (10) is fixedly connected with the front end of the main beam pipe, the rear end of the main beam pipe is connected with the frame, and front wheel shafts (511, 521) are arranged on the front wheels (51, 52); the motor tricycle is characterized by also comprising a swinging mechanism and a locking mechanism matched with the swinging mechanism; the front wheel shaft is connected with the swing mechanism so that the front wheel moves up and down along with the swing mechanism, and the swing of the motor tricycle is realized;

a steering knuckle is sleeved on the inner side of the front wheel shaft (511, 521), and comprises a journal sleeved on the front wheel shaft, an upper support arm (512, 522) extending outwards and a lower support arm (513, 523);

the rocking mechanism includes: two upper swing arms (13), two lower swing arms (14), a rocker arm (175), a longitudinally-arranged shock absorber (17) and a bracket (18); the support (18) is fixed on the head tube (10), the longitudinal center line of the support is parallel to the axis of the head tube (10), and the support (18) is respectively provided with a second connecting shaft (16), a third connecting shaft (19) and a first connecting shaft (15) from top to bottom; the second connecting shaft (16) is used for penetrating a hole in the middle of the rocker arm (175) so that the rocker arm can rotate around the second connecting shaft; two ends of the rocker arm (175) are respectively and fixedly connected with the upper end of a shock absorber (17), and the lower end of the shock absorber (17) is fixedly connected to the lower swing arm; the end parts, far away from a head pipe, of the upper swing arms (13) are respectively and fixedly connected with upper support arms (512, 522) of the front wheel shafts (511, 521), and the other ends of the upper swing arms (13) penetrate through the third connecting shaft (19), so that the upper swing arms can rotate around the third connecting shaft; the end parts, far away from a head pipe, of the lower swing arms 14 are respectively fixedly connected with lower support arms (513, 523) of the front wheel shafts (511, 521), and the other ends of the lower swing arms (14) penetrate through the first connecting shaft (15), so that the lower swing arms can rotate around the first connecting shaft;

the locking mechanism includes: a locking spanner (171), a pull wire, a locking clamp (173) and a locking disc (174); the locking spanner (171) is arranged on the steering rod (20), one end of the pull wire is connected with the locking spanner (171), the other end of the pull wire is connected with one end of the locking pliers (173), the locking pliers (173) is provided with two wings, and the tops of one ends of the wings are provided with through holes for the pull wire connected with the locking spanner to pass through; the locking pliers (173) partially wrap and clamp the locking disc (174); the locking disc (174) is of an inverted U-shaped structure, and two ends of the locking disc are respectively fixed at two ends of the rocker arm (175).

2. Motor tricycle with rocking mechanism according to claim 1, characterised in that the first (15), second (16), third (19) and fourth (20) connection shafts are all rotation shafts and collinear.

3. Motor tricycle with rocking mechanism according to claim 1, characterised in that a fourth connecting shaft (20) is also provided on the bracket (18), between the third connecting shaft (19) and the first connecting shaft (15), the fourth connecting shaft (20) being intended to pass through the ends of two steering rods (191), the other ends of the steering rods (191) being respectively fixed to the knuckles of the front wheel axle, the steering rods being intended to steer the front wheels.

4. Motor tricycle with rocking mechanism according to claim 3, characterised in that the steering tie-rod (191) is of arc-shaped configuration to avoid the tie-rod touching the upper swing arm of the rocking mechanism when steering.

5. Motor tricycle with rocking mechanism according to claim 1, characterised in that when the locking wrench is turned upwards, the pull wire pulls the locking pincers (173) to grip the locking disc (174) so that the rocker arm (175) cannot rock; when the locking wrench is facing downwards, the locking pliers (173) do not clamp the locking disc (174), and the rocking mechanism can rock.

6. Motor tricycle with rocking mechanism according to claim 1, characterised in that the two shock absorbers (17) are arranged in parallel.

7. Motor tricycle with rocking mechanism according to claim 1, characterised in that the connection of the upper (13) and lower (14) swing arms with the upper (512, 522) and lower (513, 523) arms is on the same horizontal line.