CN112693551B

CN112693551B - Electric tricycle

Info

Publication number: CN112693551B
Application number: CN202011630335.3A
Authority: CN
Inventors: 洪明辉; 霍向科; 刘烾
Original assignee: Taizhou Youji Vehicle Technology Co ltd
Current assignee: Taizhou Youji Vehicle Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2022-05-31
Anticipated expiration: 2040-12-31
Also published as: CN112693551A

Abstract

The application relates to an electric tricycle, which comprises a frame, a rear axle and a damping component; the frame comprises a front vehicle body and a rear vehicle body; the rear axle comprises an axle body, a rear wheel and a motor; the damping component comprises a rocker arm, a damper and a damping spring; one end of the rocker arm is hinged with the vehicle frame, and the other end of the rocker arm is connected with the bridge body; one end of the shock absorber is hinged with the frame, and the other end of the shock absorber is hinged with one end of the rocker arm far away from the frame; one end of the damping spring is connected with the frame, and the other end of the damping spring is connected with one end of the rocker arm far away from the frame; wherein, the three hinged axes at the two ends of the rocker arm and the shock absorber are parallel to each other; the damping components are two and are respectively arranged at two ends of the bridge body. When the rear wheel is jumped, utilize bumper shock absorber and damping spring to absorb vibrations to reduce the slope and the vibrations of rear portion automobile body, and then can realize reducing the slope and the swing of anterior automobile body, with the travelling comfort of the personnel of improvement sitting on anterior automobile body.

Description

Electric tricycle

Technical Field

The application relates to the field of tricycles, in particular to an electric tricycle.

Background

The logistics vehicle can be transported by an electric tricycle, and the electric tricycle has the advantages of convenience in carrying cargo, low price, good quality, durability and the like.

Generally, an electro-tricycle includes a frame, a front wheel, and a rear axle. The frame includes anterior automobile body and rear portion automobile body, and the rear axle includes the pontic, rotates the rear wheel of connecting in pontic both ends and locates the motor on the pontic.

The rear axle supports the rear vehicle body, and the motor is used for driving the two rear wheels to rotate, so that the vehicle frame is driven to move forwards through friction between the rear wheels and the ground.

Can set up the cushion on the anterior automobile body, and rotate on the anterior automobile body and be equipped with the handle, the front wheel is connected in the lower extreme of handle, and navigating mate sits on the cushion, through controlling the swing of handle in order to control the front wheel, and then realizes the straight line of tricycle and turns.

In view of the above-mentioned related technologies, the inventor believes that when a rear wheel on one side rolls to a protrusion or a pit in the running process of a tricycle, a rear vehicle body tilts and drives a front vehicle body to tilt, a driver sitting on the front vehicle body shakes along with the rear vehicle body, and the comfort is low.

Disclosure of Invention

In order to improve the comfort of a person sitting on a front vehicle body, the present application provides an electric tricycle.

The application provides an electric tricycle adopts following technical scheme:

an electric tricycle comprises a frame and a rear axle; the frame comprises a front vehicle body and a rear vehicle body; the rear axle comprises an axle body, a rear wheel and a motor; the damping device further comprises a damping component, wherein the damping component comprises a rocker arm, a damper and a damping spring;

one end of the rocker arm is hinged with the vehicle frame, and the other end of the rocker arm is connected with the bridge body;

one end of the shock absorber is hinged with the frame, and the other end of the shock absorber is hinged with one end of the rocker arm far away from the frame;

one end of the damping spring is connected with the frame, and the other end of the damping spring is connected with one end of the rocker arm far away from the frame;

the three hinged axes at the two ends of the rocker arm and the shock absorber are parallel to each other;

the damping components are two and are respectively arranged at two ends of the bridge body.

Through adopting above-mentioned technical scheme, when the rear wheel of one side rolled to arch or pit, damping spring and bumper shock absorber action reduced the jump of this side rear wheel to reduce the slope and the vibrations of rear portion automobile body, and then can realize reducing the slope and the swing of anterior automobile body, with the travelling comfort that improves the personnel of sitting on anterior automobile body.

Optionally, the device further comprises a swing assembly, wherein the swing assembly comprises a housing and a spindle;

the shell is connected with the front vehicle body, the spindle is horizontal and vertical to the axis of the rear wheel, one end of the spindle is fixedly connected with the rear vehicle body, and the other end of the spindle rotates around the axis of the spindle to be connected with the shell.

Through adopting above-mentioned technical scheme, the rear wheel of one side rolls to arch or pit, relies on damping component to reduce the slope and the vibrations back of rear portion automobile body, and the rear portion automobile body still can produce the slope of small angle, and at this moment, the subassembly action that sways, relative swing between casing and the main shaft further reduces the slope of anterior automobile body to improve the travelling comfort of the personnel of sitting on anterior automobile body.

Optionally, the swing assembly further comprises a swing rod and a return spring;

one end of the swing rod is fixedly connected to the shell, and the swing rod rotates around the main shaft along with the shell;

one end of the reset spring is used for being fixedly connected with the rear vehicle body, and the other end of the reset spring is connected with the swing rod.

By adopting the technical scheme, when the rear wheel on one side rolls to the bulge or the pit, the swinging assembly acts to reduce the inclination of the front vehicle body; when the tricycle runs to a smooth road section, the swing rod and the shell are righted by the reset spring, and then the front tricycle body is driven to be righted, so that a driver can control the tricycle to run conveniently.

Optionally, the damping device further comprises a damping assembly, wherein the damping assembly comprises a damping spring and a damper;

the front vehicle body is hinged with the rear vehicle body, and the hinge axis is parallel to the axis of the rear wheel;

one end of the buffer spring is connected with the front vehicle body, and the other end of the buffer spring is connected with the rear vehicle body;

one end of the damper is hinged with the front vehicle body, and the other end of the damper is hinged with the rear vehicle body;

and two hinged axes at two ends of the damper are parallel to the axis of the rear wheel.

Through adopting above-mentioned technical scheme, the rear wheel of one side rolls to arch or pit, relies on shock-absorbing component to reduce the slope and the vibrations back of rear portion automobile body, and the rear portion automobile body still can produce less vibrations, and at this moment, the action of buffering component absorbs the vibrations that come from the rear portion automobile body, further reduces the vibrations of anterior automobile body to improve the travelling comfort of the personnel of sitting on the anterior automobile body.

Optionally, the vehicle frame further comprises a tie rod, one end of the tie rod is hinged to the vehicle frame, and the other end of the tie rod is hinged to the bridge body.

Through adopting above-mentioned technical scheme, utilize the drag link to improve the stability of being connected between rear axle and the frame to make the stable support frame of rear axle, and be favorable to damper assembly normal work.

Optionally, the device further comprises a supporting component and an adjusting component;

the two support assemblies are respectively connected to two ends of the bridge body, and each support assembly comprises an oil cylinder and a connecting piece;

the number of the connecting pieces is two, and the two connecting pieces are respectively connected to the frame and the bridge body;

the oil cylinder is provided with a piston rod and a cylinder body, the piston rod of the oil cylinder is connected to one connecting piece, and the cylinder body of the oil cylinder is connected to the other connecting piece;

the adjusting assembly is connected to the bridge body and used for adjusting the liquid pressure in the two oil cylinders.

By adopting the technical scheme, during turning, the adjusting assembly increases the liquid pressure in the oil cylinder positioned on the outer side of the turning so as to provide larger supporting force for one end of the frame positioned on the outer side of the turning, and simultaneously, the adjusting assembly reduces the liquid pressure in the oil cylinder positioned on the inner side of the turning so as to reduce the supporting force for one end of the frame positioned on the inner side of the turning; the supporting force of the frame at the inner side and the outer side of the turn is unequal, and torsional moment is generated, so that the tilting degree of one end of the frame at the inner side of the turn is reduced, and the possibility of side turning of the tricycle is reduced.

Optionally, the adjusting assembly includes an adjusting tube and a sliding member;

the adjusting pipe is parallel to the axis of the rear wheel, one end of the adjusting pipe is communicated to one oil cylinder, and the other end of the adjusting pipe is communicated to the other oil cylinder;

the sliding piece is slidably embedded in the adjusting pipe, and the sliding part is in sliding seal with the inner periphery of the adjusting pipe.

By adopting the technical scheme, when the vehicle turns, the sliding piece has the tendency of moving towards the turning outer side, so that the extrusion force between the sliding piece and the liquid of the adjusting pipe close to the turning outer side is increased, and the liquid pressure in the oil cylinder positioned at the turning outer side is increased; meanwhile, the extrusion force between the sliding piece and the liquid of the adjusting pipe close to the inner side of the turn is reduced, and then the liquid pressure in the oil cylinder positioned on the inner side of the turn is reduced.

Optionally, the adjusting pipe is further provided with an avoiding groove, the avoiding groove extends along the axial direction of the adjusting pipe, and the avoiding groove penetrates through the pipe wall of the adjusting pipe;

in the axial direction of the adjusting pipe, the length of the sliding piece is greater than that of the avoidance groove;

the adjusting assembly further comprises a connecting pin and a heavy block, and one end of the connecting pin penetrates through the avoiding groove and is connected to the periphery of the sliding piece; the heavy block is detachably connected to one end, extending out of the adjusting pipe, of the connecting pin.

By adopting the technical scheme, the weight block has the tendency of moving towards the outer side of the turn when the vehicle turns, so that the extrusion force of the sliding piece on liquid is increased, and further, the aim of effectively providing larger supporting force for one end of the vehicle frame positioned at the outer side of the turn is achieved; meanwhile, before driving, a driver can adjust the heavy block according to actual conditions (loaded weight and the like) so as to better reduce the tilting degree of one end of the frame, which is positioned on the inner side of a turn.

Optionally, the adjusting assembly further comprises a lever and a pin;

the pin shaft is fixedly connected to the bridge body and is perpendicular to the adjusting pipe;

the lever is rotatably connected with the pin shaft, the rotating axis of the lever is superposed with the axis of the pin shaft, and the lever is also provided with a sliding groove which extends along the radial direction of the pin shaft;

the connecting pin is embedded in the sliding groove in a sliding mode, the heavy block is detachably connected to the lever, and the heavy block is located on one side, away from the pin shaft, of the sliding groove.

Through adopting above-mentioned technical scheme, during the turn, the pouring weight has the trend of moving to the turn outside to utilize lever principle, increase the arm of force, in order to increase the extrusion force of glide to liquid.

Optionally, the lever is provided with mounting holes at intervals, and the mounting holes are located on one side of the sliding groove, away from the pin shaft; the weight is detachably connected with one mounting hole.

Through adopting above-mentioned technical scheme, before traveling, navigating mate can be according to actual conditions (carry cargo weight etc.), adjust the position of pouring weight, adjust the length of the arm of force promptly to better realization reduces the frame and is located the degree of the inboard one end perk of turning.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the rear wheel on one side rolls to the bulge or the pit, the damping spring and the damper act to reduce the bounce of the rear wheel on the side so as to reduce the inclination and the vibration of the rear vehicle body, and further the inclination and the swing of the front vehicle body can be reduced so as to improve the comfort of people sitting on the front vehicle body;

2. the rear wheel on one side rolls to the bulge or the pit, the rear vehicle body still can incline in a small angle after the inclination and the vibration of the rear vehicle body are reduced by the damping assembly, at the moment, the swinging assembly acts, the shell and the main shaft swing relatively, the inclination of the front vehicle body is further reduced, and the comfort of a person sitting on the front vehicle body is improved;

3. the rear wheel on one side rolls to the bulge or the pit, and the rear vehicle body still can generate smaller vibration after the inclination and the vibration of the rear vehicle body are reduced by the damping component.

Drawings

Fig. 1 is a schematic view of the overall structure of an electric tricycle.

Fig. 2 is a schematic view of the structure of the shock-absorbing assembly.

Fig. 3 is a schematic view of the attachment position of the tie rod.

FIG. 4 is a schematic view of the connection of the wobble assembly and the damping assembly.

Fig. 5 is a schematic structural view of the rocking assembly.

Fig. 6 is a schematic structural view of the buffer assembly.

Fig. 7 is a schematic structural view of the support assembly and the adjustment assembly.

FIG. 8 is a cross-sectional schematic view of the support assembly.

Fig. 9 is a sectional view of the regulating tube.

Description of reference numerals: 1. a frame; 11. a front vehicle body; 12. a rear vehicle body; 2. a rear axle; 21. a bridge body; 22. a rear wheel; 23. a motor; 3. a shock absorbing assembly; 31. a rocker arm; 32. a shock absorber; 33. a damping spring; 34. a shock absorbing seat; 4. a tie rod; 5. a rocking mechanism; 51. a housing; 52. a main shaft; 53. a swing rod; 531. avoiding holes; 54. a reset lever; 55. a return spring; 6. a buffer assembly; 61. a damper; 62. a buffer spring; 63. a buffer seat; 7. a support assembly; 71. an oil cylinder; 72. a support spring; 73. a connecting member; 74. a sleeve; 75. a support plate; 8. an adjustment assembly; 81. a connecting pipe; 82. an adjusting tube; 821. an avoidance groove; 83. a sliding member; 84. a connecting pin; 85. a pin shaft; 86. a lever; 861. a sliding groove; 862. mounting holes; 87. and a weight.

Detailed Description

The present application is described in further detail below with reference to figures 1-9.

Referring to fig. 1, the embodiment of the present application discloses an electric tricycle, which includes a frame 1 and a rear axle 2.

The frame 1 comprises a front vehicle body 11 and a rear vehicle body 12, and the rear axle 2 comprises an axle body 21, rear wheels 22 rotatably connected to two ends of the axle body 21, and a motor 23 arranged on the axle body 21.

The rear axle 2 supports the rear vehicle body 12, and the motor 23 is used for driving the two rear wheels 22 to rotate, so that the vehicle frame 1 is driven to move forwards through the friction between the rear wheels 22 and the ground.

Can set up the cushion on the anterior automobile body 11, and rotate on the anterior automobile body 11 and be equipped with the handle, the front wheel is connected in the lower extreme of handle, and the navigating mate sits on the cushion, through controlling the swing of handle in order to control the front wheel, and then realizes the straight line of tricycle and turns.

Referring to fig. 2, the electro-tricycle further includes two damping assemblies 3, the two damping assemblies 3 are respectively connected to peripheries of two ends of the axle body 21, and each damping assembly 3 includes a rocker arm 31, a damper 32, and a damping spring 33.

The rocker arm 31 is perpendicular to the axis of the rear wheel 22, and the end of the rocker arm 31 facing the front vehicle body 11 is hinged to the rear vehicle body 12, while the hinge axis is parallel to the axis of the rear wheel 22.

The shock absorber 32 comprises a shock absorbing piston rod and a shock absorbing cylinder body, the upper end of the shock absorbing piston rod is hinged to the rear vehicle body 12, the hinge axis of the shock absorbing piston rod is parallel to the axis of the rear wheel 22, the lower end of the shock absorbing piston rod is embedded in the shock absorbing cylinder body in a sliding mode, the lower end of the shock absorbing cylinder body is hinged to the end portion, deviating from the front vehicle body 11, of the rocker arm 31, and the hinge axis of the shock absorbing cylinder body is parallel to the axis of the rear wheel 22.

The peripheries of the damping piston rod and the damping cylinder body are respectively provided with a damping seat 34, the damping spring 33 is sleeved on the periphery of the damper 32 and is positioned between the two damping seats 34, and the two ends of the damping spring 33 are respectively abutted against the two damping seats 34.

Referring to fig. 3, a tie rod 4 is further disposed between the axle body 21 and the rear vehicle body 12, an included angle exists between the tie rod 4 and the axis of the axle body 21, one end of the tie rod 4 is connected with the axle body 21 through a ball hinge, and the other end of the tie rod 4 is hinged with the rear vehicle body 12.

When the electric tricycle runs, the rear wheel 22 at one side rolls to a bulge or a pit, the rear wheel 22 jumps, and at the moment, the shock absorption assembly 3 acts to absorb the shock of the rear wheel 22, so that the shock and the swing of the rear vehicle body 12 are reduced.

Referring to fig. 4, a swing assembly is further provided between the front body 11 and the rear body 12 to reduce the swing of the front body 11 when the rear body 12 swings.

Referring to fig. 4 and 5, the rocking mechanism 5 includes a housing 51, a main shaft 52, a rocker 53, a return lever 54, and a return spring 55.

The shell 51 is connected to the front vehicle body 11, the main shaft 52 is horizontal and vertical to the axis of the rear wheel 22, one end of the main shaft 52 is fixedly connected with the rear vehicle body 12, and the other end of the main shaft 52 is embedded in the shell 51 in a rotating mode around the axis of the main shaft.

The swing link 53 is fixedly connected to the periphery of the housing 51, and when the front vehicle body 11 is in a swing state, the swing link 53 is in a vertical state; the upper end of the swing link 53 is further provided with an avoiding hole 531, the avoiding hole 531 extends in the vertical direction, and the avoiding hole 531 penetrates through the swing link 53 in the direction parallel to the axis of the rear wheel 22.

The reset rod 54 is parallel to the axis of the rear wheel 22, the reset rod 54 is arranged in the avoidance hole 531 in a penetrating way, and two ends of the reset rod 54 are fixedly connected to the rear vehicle body 12; two return springs 55 are coaxially sleeved on the return rod 54, the two return springs 55 are respectively positioned on two sides of the swing rod 53, and the two return springs 55 rely on the extrusion force of the return springs 55 on the two sides on the swing rod 53 to realize the return of the swing rod 53.

When the electric tricycle runs, the rear wheel 22 at one side rolls to a bulge or a pit, the rear wheel 22 jumps, after partial vibration is absorbed by the shock absorption assembly 3, the rear tricycle body 12 still inclines at a small angle, at the moment, the swinging assembly acts, the shell 51 and the main shaft 52 rotate relatively, and the inclination angle of the front tricycle body 11 is further reduced; when the electric tricycle runs to a smooth road section, the return spring 55 returns the swing rod 53, so that the swing rod 53 and the shell 51 are righted, and the front tricycle body 11 is driven to be righted, so that a driver can control the running of the tricycle conveniently.

Referring to fig. 4 and 6, a buffer assembly 6 is further disposed between the front vehicle body 11 and the rear vehicle body 12 to reduce the vibration of the front vehicle body 11 when the rear vehicle body 12 vibrates.

The front vehicle body 11 is hinged with the shell 51, and the hinge axis is parallel to the axis of the rear wheel 22; the cushion assembly 6 includes a damper 61 and a cushion spring 62.

The damper 61 includes a damping piston rod and a damping cylinder, the upper end of the damping piston rod is hinged to the front vehicle body 11, the hinge axis of the damping piston rod is parallel to the axis of the rear wheel 22, the lower end of the damping piston rod is slidably embedded in the damping cylinder, the lower end of the damping cylinder is hinged to the housing 51, and the hinge axis of the damping cylinder is parallel to the axis of the rear wheel 22.

The periphery of damping piston rod and damping cylinder body all is equipped with buffering seat 63, and buffer spring 62 cup joints in the periphery of attenuator 61 to be located between two buffering seats 63, and buffer spring 62's both ends support respectively tightly in two buffering seats 63.

When the electric tricycle runs, the rear wheel 22 on one side rolls to a bulge or a pit, the rear wheel 22 jumps, partial vibration is absorbed by the shock absorption assembly 3, the vibration of the rear vehicle body 12 is transmitted to the front vehicle body 11, and at the moment, the buffer assembly 6 acts to absorb the vibration from the rear vehicle body 12 so as to reduce the vibration of the front vehicle body 11.

When the tricycle turns in a certain direction at a high speed or with a large turning angle, the end of the frame 1 on the inner side of the turning is easy to tilt, and the electric tricycle is unstable to run.

To this end, with reference to fig. 2 and 7, the electro-tricycle further comprises a support assembly 7 and an adjustment assembly 8.

Referring to fig. 7 and 8, two support assemblies 7 are provided and are respectively connected to the two swing arms 31, and each support assembly 7 includes an oil cylinder 71, a support spring 72 and two connecting members 73.

One link 73 is connected to the rear vehicle body 12, and the other link 73 is connected to the swing arm 31.

The oil cylinder 71 comprises a cylinder body and a piston rod, the lower end of the cylinder body of the oil cylinder 71 is connected to the rocker arm 31 through a connecting piece 73, and the upper end of the piston rod of the oil cylinder 71 is connected to the lower end of the supporting spring 72; the telescopic direction of the support spring 72 is parallel to the telescopic direction of the piston rod of the cylinder 71, and the upper end of the support spring 72 is connected to the rear vehicle body 12 through a connecting member 73.

Referring to fig. 7 and 9, the adjustment assembly 8 is connected to the bridge body 21 and is used to adjust the hydraulic pressure of the two cylinders 71. The adjusting assembly 8 comprises two connecting tubes 81, an adjusting tube 82 and a slide 83.

Two connecting pipes 81 are respectively connected to two ends of the adjusting pipe 82, one end of one connecting pipe 81 far away from the adjusting pipe 82 is communicated to the cylinder body of one oil cylinder 71, and one end of the other connecting pipe 81 far away from the adjusting pipe 82 is communicated to the cylinder body of the other oil cylinder 71; the adjusting pipe 82 is fixedly connected to the bridge body 21, and the adjusting pipe 82 is parallel to the axis of the bridge body 21; the sliding member 83 is slidably fitted into the adjusting pipe 82, and the outer periphery of the sliding member 83 is slidably sealed with the inner periphery of the adjusting pipe 82.

Oil liquid is filled in the cylinder body of the oil cylinder 71, the connecting pipe 81 and the adjusting pipe 82, when the vehicle turns, the sliding piece 83 has the tendency of moving towards the turning outer side, the extrusion force between the sliding piece 83 and the liquid of the adjusting pipe 82 close to the turning outer side is increased, the liquid pressure in the oil cylinder 71 positioned at the turning outer side is increased, and a larger supporting force is provided for one end of the vehicle frame 1 positioned at the turning outer side; meanwhile, the extrusion force between the sliding member 83 and the liquid near the turning inner side of the adjusting pipe 82 is reduced, so that the reduction of the liquid pressure in the oil cylinder 71 at the turning inner side is realized, and the supporting force of one end of the frame 1 at the turning inner side is reduced.

Through the process, the supporting force of the frame 1 on the inner side and the outer side of the turn is unequal, and a torsional moment is generated to reduce the tilting degree of one end of the frame 1 on the inner side of the turn.

Referring to fig. 8, the supporting assembly 7 further includes a sleeve 74 and a supporting plate 75, wherein the lower end of the sleeve 74 is open and is slidably sleeved on the periphery of the cylinder body of the oil cylinder 71; the supporting plate 75 and the supporting spring 72 are both slidably embedded in the sleeve 74, and the supporting plate 75 is located below the supporting spring 72, that is, the upper end surface of the supporting plate 75 bears the supporting spring 72, and the lower end surface of the supporting plate 75 is connected to the piston rod of the oil cylinder 71.

Meanwhile, the outer peripheral upper end of the sleeve 74 is connected to the rear vehicle body 12 through a connecting member 73, and in the present embodiment, the connecting member 73 is of a ball hinge structure.

Referring to fig. 7 and 9, an avoiding groove 821 is further provided on the adjusting tube 82, the avoiding groove 821 extends along an axial direction of the adjusting tube 82, and the avoiding groove 821 upwardly penetrates through a tube wall of the adjusting tube 82 along a vertical direction; meanwhile, the length of the slide member 83 is greater than the length of the escape groove 821 in the axial direction of the adjustment pipe 82.

The adjustment assembly 8 further comprises a connecting pin 84, a pin shaft 85, a lever 86 and a weight 87.

The connecting pin 84 is vertically disposed and connected to the outer circumference of the slider 83; the connecting pin 84 is slidably fitted in the avoiding groove 821, and the upper end of the connecting pin 84 extends upward out of the avoiding groove 821; the pin shaft 85 is fixedly connected to the bridge body 21 and is vertically arranged, and the pin shaft 85 is positioned on one side of the adjusting pipe 82; one end of the lever 86 is rotatably sleeved on the periphery of the pin shaft 85, and the lever 86 is provided with a sliding groove 861 for the connection pin 84 to penetrate through, the sliding groove 861 extends along the radial direction of the pin shaft 85, so that the sliding groove 861 is slidably sleeved on the periphery of the connection pin 84.

Three mounting holes 862 are formed in the lever 86 at intervals on one side of the sliding groove 861, which is far away from the pin shaft 85, one weight 87 is detachably connected into one of the mounting holes 862, and the bolt penetrates through the weight 87 and is connected into the mounting hole 862.

The implementation principle of the electric tricycle in the embodiment of the application is as follows: when the electric tricycle runs, the rear wheel 22 on one side rolls to a bulge or a pit, the rear wheel 22 jumps, at this time, the shock absorption assembly 3 acts to absorb part of shock and reduce the shock and swing of the rear vehicle body 12, then, the shock and swing of the rear vehicle body 12 are transmitted to the front vehicle body 11, the swing assembly acts, the front vehicle body 11 and the rear vehicle body 12 swing relatively to each other to reduce the swing of the front vehicle body 11, and at the same time, the buffer assembly 6 acts to absorb the shock from the rear vehicle body 12 and reduce the shock of the front vehicle body 11.

When the vehicle turns, the supporting component 7 and the adjusting component 8 act, the weight 87 and the sliding component 83 have the tendency of moving towards the turning outer side, so that the hydraulic pressure in the oil cylinder 71 positioned at the turning outer side is increased, and a larger supporting force is provided for one end of the vehicle frame 1 positioned at the turning outer side; meanwhile, the hydraulic pressure in the oil cylinder 71 positioned on the inner side of the turn is reduced to the supporting force of one end of the frame 1 positioned on the inner side of the turn, the supporting forces of the frame 1 positioned on the inner side and the outer side of the turn are unequal, and a torsional moment is generated so as to reduce the tilting degree of one end of the frame 1 positioned on the inner side of the turn.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An electric tricycle comprises a frame (1) and a rear axle (2); the frame (1) comprises a front vehicle body (11) and a rear vehicle body (12); the rear axle (2) comprises an axle body (21), a rear wheel (22) and a motor (23); the method is characterized in that: the shock absorber further comprises a shock absorption assembly (3), wherein the shock absorption assembly (3) comprises a rocker arm (31), a shock absorber (32) and a shock absorption spring (33);

one end of the rocker arm (31) is hinged with the frame (1), and the other end of the rocker arm (31) is connected with the bridge body (21);

one end of the shock absorber (32) is hinged with the frame (1), and the other end of the shock absorber (32) is hinged with one end, far away from the frame (1), of the rocker arm (31);

one end of the damping spring (33) is connected with the frame (1), and the other end of the damping spring (33) is connected with one end, far away from the frame (1), of the rocker arm (31);

wherein the three hinge axes at the two ends of the rocker arm (31) and the shock absorber (32) are parallel to each other;

two damping components (3) are arranged, and the two damping components (3) are respectively arranged at two ends of the bridge body (21);

the device also comprises a supporting component (7) and an adjusting component (8);

the two supporting assemblies (7) are respectively connected to two ends of the bridge body (21), and each supporting assembly (7) comprises an oil cylinder (71) and a connecting piece (73);

two connecting pieces (73) are arranged and are respectively connected to the frame (1) and the bridge body (21);

the oil cylinder (71) is provided with a piston rod and a cylinder body, the piston rod of the oil cylinder (71) is connected to one connecting piece (73), and the cylinder body of the oil cylinder (71) is connected to the other connecting piece (73);

the adjusting assembly (8) is connected to the bridge body (21) and is used for adjusting the liquid pressure in the two oil cylinders (71);

the adjusting assembly (8) comprises an adjusting pipe (82) and a sliding piece (83);

the adjusting pipe (82) is parallel to the axis of the rear wheel (22), one end of the adjusting pipe (82) is communicated to one oil cylinder (71), and the other end of the adjusting pipe (82) is communicated to the other oil cylinder (71);

the sliding piece (83) is embedded in the adjusting pipe (82) in a sliding manner, and the sliding piece (83) is in sliding seal with the inner circumference of the adjusting pipe (82);

the adjusting pipe (82) is further provided with an avoiding groove (821), the avoiding groove (821) extends along the axial direction of the adjusting pipe (82), and the avoiding groove (821) penetrates through the pipe wall of the adjusting pipe (82);

the length of the sliding piece (83) is larger than that of the avoidance groove (821) along the axial direction of the adjusting pipe (82);

the adjusting assembly (8) further comprises a connecting pin (84) and a weight (87), one end of the connecting pin (84) passes through the avoiding groove (821) and is connected to the periphery of the sliding member (83); the weight (87) is detachably connected to one end of the connecting pin (84) extending out of the adjusting tube (82).

2. The electro-tricycle of claim 1, wherein: the swing assembly comprises a shell (51) and a main shaft (52);

the shell (51) is connected with a front vehicle body (11), the main shaft (52) is horizontal and vertical to the axis of the rear wheel (22), one end of the main shaft (52) is fixedly connected with a rear vehicle body (12), and the other end of the main shaft (52) rotates around the axis of the main shaft to be connected with the shell (51).

3. The electro-tricycle of claim 2, wherein: the swing assembly further comprises a swing rod (53) and a return spring (55);

one end of the swing rod (53) is fixedly connected to the shell (51), and the swing rod (53) rotates around the main shaft (52) along with the shell (51);

one end of the return spring (55) is fixedly connected with the rear vehicle body (12), and the other end of the return spring (55) is connected with the swing rod (53).

4. The electro-tricycle of claim 1, wherein: the damping device further comprises a damping assembly (6), wherein the damping assembly (6) comprises a damping spring (62) and a damper (61);

the front vehicle body (11) is hinged with the rear vehicle body (12), and the hinge axis is parallel to the axis of the rear wheel (22);

one end of the buffer spring (62) is connected with the front vehicle body (11), and the other end of the buffer spring (62) is connected with the rear vehicle body (12);

one end of the damper (61) is hinged with the front vehicle body (11), and the other end of the damper (61) is hinged with the rear vehicle body (12);

wherein two hinged axes at two ends of the damper (61) are parallel to the axis of the rear wheel (22).

5. The electro-tricycle of claim 1, wherein: the vehicle frame is characterized by further comprising a cross pull rod (4), one end of the cross pull rod (4) is hinged with the vehicle frame (1), and the other end of the cross pull rod (4) is hinged with a bridge body (21).

6. The electro-tricycle of claim 1, wherein: the adjusting component (8) further comprises a lever (86) and a pin shaft (85);

the pin shaft (85) is fixedly connected to the bridge body (21), and the pin shaft (85) is perpendicular to the adjusting pipe (82);

the lever (86) rotates a connecting pin (84) shaft, the rotating axis of the lever coincides with the axis of the pin shaft (85), a sliding groove (861) is further formed in the lever (86), and the sliding groove (861) extends along the radial direction of the pin shaft (85);

connecting pin (84) slip inlays establishes to sliding groove (861) in, pouring weight (87) can be dismantled and be connected in lever (86), just pouring weight (87) are located sliding groove (861) and deviate from one side of round pin axle (85).

7. The electro-tricycle of claim 6, wherein: mounting holes (862) are formed in the lever (86) at intervals, and the mounting holes (862) are located on one side, away from the pin shaft (85), of the sliding groove (861); the weight (87) is detachably connected with one of the mounting holes (862).