CN209270782U - Four wheel scooters of K-type activity framed plate structure - Google Patents

Abstract

The utility model provides a kind of four wheel scooters of K-type activity framed plate structure, and main body frame is a K-type grillage, and internal equipped with driving mechanism and steering mechanism, and carries out energy storage by thrust spring.User does not need to provide driving force with a feet step on the ground when sliding, it only needs both feet to trample simultaneously and arbitrarily scrunches movable short slab downwards above scooter, the driving force slided forward can be obtained by driving mechanism, due to being equipped with steering mechanism, user can directly control turning by front foot on scooter, the operation of continuous minor-circle turn may be implemented, in turning, the four-wheel of scooter can also realize that differential drives, keep cornering operation more steady, therefore it is compared with four wheel scooters of conventional structure, four wheel scooters of the utility model are more convenient to use, and sliding speed is faster, cornering operation is also more flexible, be more convenient for beginner grasp, it can be widely used for riding instead of walk, amusement, a variety of occasions such as body-building and tourism.

Description

Four wheel scooters of K-type activity framed plate structure

Technical field

The utility model relates to a kind of four wheel scooters, four wheel scooters of specifically a kind of K-type activity framed plate structure.

Background technique

Four conventional wheel scooters are not due to having dynamic structure, and user needs a foot to step down on scooter when sliding, Another the feet step on the ground provides power, and driving scooter advances, then again steps on bipod simultaneously and keep inertia to move ahead on scooter, It is very inconvenient to use, and speed is slower.In addition Servo Control of the four conventional wheel scooters when sliding is inflexible, User needs to control the center of gravity of body, tilts scooter inclination, then do rotation appropriate with hand and body, with body rotations Power control the size of angle of turn, control skill is complex, and beginner is difficult to grasp, and four conventional skateboards Vehicle cannot implement the operation of continuous minor-circle turn, therefore can only entertain and use on spacious place for people.

Utility model content

The purpose of the utility model is to provide a kind of four wheel scooters of K-type activity framed plate structure, to solve existing four-wheel Scooter power shortage mechanism, Servo Control are inconvenient, cannot implement the problems such as continuous minor-circle turn.

The first technical solution of the utility model is as follows:

A kind of four wheel scooters of K-type activity framed plate structure are equipped with horizontal long frame, the middle part or so of horizontal long frame Two sides are respectively provided with a upward fulcrum strut, before two fulcrum struts are hinged with both ends stretching forward and backward by articulated shaft Movable short slab and rear movable short slab, are respectively provided with a thrust spring between horizontal long frame and forward and backward movable short slab and are attached, Forward and backward movable short slab is tilted to upper side by the resilient support of thrust spring, thus constitutes a backstroke K-type grillage.

A downward front forked frame, the upper end of two front forked frames are respectively hinged on two corners of the long frame front end of level Respectively by hollow central siphon and horizontal long frame articulation, the lower end of two front forked frames passes through front axle bracket equipped with front-wheel, before two respectively The inside of wheel be respectively furnished with an inside equipped with scroll spring and can the preceding elevator wheel that winds of elasticity, preceding elevator wheel coaxially pacifies with front-wheel It fills and passes through freewheel clutch and be connected with front-wheel, two front forked frames are also provided with lateral pulley above preceding elevator wheel；Preceding work Bottom surface the right and left of dynamic short slab be respectively hinged with a bracket can swing it is preceding directly to pulley；The both ends of preceding bracing wire respectively to The right and left is around hollow central siphon that is preceding directly to pulley, then passing through two front forked frames of left and right separately down, then bypasses left and right two respectively The lateral pulley on side is finally respectively connected on the preceding elevator wheel of the right and left；Two corners of the long back-end framework of level On be respectively hinged with a downward rear crotch, the lower end of two rear crotch connects a root long rear axle jointly, after the length in two rear crotch It is respectively erected with rear-wheel on axis, the inside of two rear-wheels is respectively furnished with an inside equipped with scroll spring and can the rear volume that winds of elasticity Wheel is raised, rear elevator wheel is co-axially mounted with rear-wheel and passes through freewheel clutch to be connected with rear-wheel；The bottom surface or so of movable short slab afterwards Both sides be respectively hinged with a bracket can swing it is rear directly to pulley；The both ends of back guy are straight around later to the left and right sides respectively To pulley, then it is connected on the rear elevator wheel of the right and left separately down.

The front end of movable short slab is equipped with stepped hole before described, and stepped hole is provided with plain thrust bearing, and preceding activity short slab is logical Cross this plain thrust bearing rotating support a turntable；A prismatic is additionally provided between preceding activity short slab and horizontal long frame to stretch Contracting bar, telescopic rod use pullout antenna formula stretching structure, and telescopic rod upper end is hinged on the bottom surface of turntable by upper cardan, is stretched Contracting bar lower end connects lower cardan, and the other end of lower cardan connects L shape control stick, the vertical pivot and lower cardan of L shape control stick It connects and rotating support is on horizontal long frame, the horizontal axis end of L shape control stick is hinged in the middle part of a longitudinal direction bar, left The front forked frame on right both sides is respectively provided with the axis of orientation stretched out backward, and two axis of orientations of left and right are respectively hinged at the left and right two of steering yoke End is rotated synchronously by the front forked frame of L shape joystick driver the right and left.

The freewheel clutch uses ratchet wheel pawl type mono-directional overrun clutch.Movable short slab, rear movable short slab before described And the upper surface of turntable is equipped with anti-skid chequer.

The mode driven simultaneously in the first technical solution using front wheels and rear wheels, also can be set into after being applied alone Second of technical solution is consequently formed in the mode of wheel drive:

A kind of four wheel scooters of K-type activity framed plate structure are equipped with horizontal long frame, the middle part or so of horizontal long frame Two sides are respectively provided with a upward fulcrum strut, before two fulcrum struts are hinged with both ends stretching forward and backward by articulated shaft Movable short slab and rear movable short slab, are respectively provided with a thrust spring between horizontal long frame and forward and backward movable short slab and are attached, Forward and backward movable short slab is tilted to upper side by the resilient support of thrust spring, thus constitutes a backstroke K-type grillage.

A downward front forked frame, the lower end of two front forked frames are respectively hinged on two corners of the long frame front end of level Front-wheel is equipped with by front axle bracket respectively；Bottom surface the right and left of preceding activity short slab is respectively hinged with a bracket can be before swing Directly to pulley；Horizontal long frame bottom surface is directly also respectively erected with lateral pulley to the position below pulley before two corresponding；Institute It states and is respectively hinged with a downward rear crotch on two corners of horizontal long back-end framework, the lower end of two rear crotch connects one jointly Root long rear axle is respectively erected with rear-wheel on the long rear axle in two rear crotch, is provided with inside inside and outside two rear-wheels and is equipped with Scroll spring and can elasticity winding rear elevator wheel, the rear elevator wheels of two sides and rear-wheel are co-axially mounted and pass through overdrive clutch respectively Device is connected with rear-wheel；Afterwards bottom surface the right and left of movable short slab be respectively hinged with a bracket can swing it is rear directly to cunning Wheel；The both ends of preceding bracing wire bypass lateral pulley that is preceding directly to pulley, then bypassing the right and left separately down to the left and right sides respectively, It is finally connected to respectively backward on the rear elevator wheel on the outside of two rear-wheels of left and right；The both ends of back guy are respectively to the left and right sides around later Directly to pulley, then it is connected on the rear elevator wheel on the inside of two rear-wheels of left and right separately down.

The front end of movable short slab is equipped with stepped hole before described, and stepped hole is provided with plain thrust bearing, and preceding activity short slab is logical Cross this plain thrust bearing rotating support a turntable；A prismatic is additionally provided between preceding activity short slab and horizontal long frame to stretch Contracting bar, telescopic rod use pullout antenna formula stretching structure, and telescopic rod upper end is hinged on the bottom surface of turntable by upper cardan, is stretched Contracting bar lower end connects lower cardan, and the other end of lower cardan connects L shape control stick, the vertical pivot and lower cardan of L shape control stick It connects and rotating support is on horizontal long frame, the horizontal axis end of L shape control stick is hinged in the middle part of a longitudinal direction bar, left The front forked frame on right both sides is respectively provided with the axis of orientation stretched out backward, and two axis of orientations of left and right are respectively hinged at the left and right two of steering yoke End is rotated synchronously by the front forked frame of L shape joystick driver the right and left.

Using backstroke K-type framed plate structure in the first technical solution, it can also be designed to facedown K-type framed plate structure Form, the third technical solution is consequently formed:

A kind of four wheel scooters of K-type activity framed plate structure are equipped with horizontal long slab, the middle part left and right sides of horizontal long slab It is respectively provided with a downward fulcrum strut, two fulcrum struts are hinged with the preceding activity that both ends are stretched out forward and backward by articulated shaft Short frame and the rear short frame of activity, are respectively provided with a thrust spring between horizontal long slab and the forward and backward short frame of activity and are attached, The forward and backward short frame of activity is tilted to side-lower by the resilient support of thrust spring, thus constitutes a facedown K-type plate Frame.

Respectively be hinged with a downward front forked frame before described on two corners of the short frame front end of activity, two front forked frames it is upper Respectively by hollow central siphon and the preceding short frame articulation of activity, the lower end of two front forked frames passes through front axle bracket respectively and is equipped with front-wheel at end, and two The inside of a front-wheel be respectively furnished with an inside equipped with scroll spring and can elasticity wind preceding elevator wheel, preceding elevator wheel and front-wheel are same Axis is installed and passes through freewheel clutch to be connected with front-wheel, and two front forked frames are also provided with lateral pulley above preceding elevator wheel； Bottom surface the right and left of horizontal long front edge of board be respectively hinged with a bracket can swing it is preceding directly to pulley；The both ends of preceding bracing wire Respectively to the left and right sides around hollow central siphon that is preceding directly to pulley, then passing through two front forked frames of left and right separately down, then bypass respectively The lateral pulley of the right and left is finally respectively connected on the preceding elevator wheel of the right and left；The short back-end framework of activity after described A downward rear crotch is respectively hinged on two corners, the lower end of two rear crotch connects a root long rear axle, two rear crotch jointly Rear-wheel is respectively erected on interior long rear axle, the inside of two rear-wheels is respectively furnished with an inside equipped with scroll spring and elastic can receive The rear elevator wheel of volume, rear elevator wheel is co-axially mounted with rear-wheel and passes through freewheel clutch to be connected with rear-wheel；Horizontal long slab rear end Bottom surface the right and left be respectively hinged with a bracket can swing it is rear directly to pulley；The both ends of back guy respectively to the left and right two While around later directly to pulley, then be connected on the rear elevator wheel of the right and left separately down.

The front end of the horizontal long slab is equipped with stepped hole, and stepped hole is provided with plain thrust bearing, and horizontal long slab passes through this Plain thrust bearing rotating support a turntable；It is flexible that a prismatic is additionally provided between horizontal long slab and the preceding short frame of activity Bar, telescopic rod use pullout antenna formula stretching structure, and telescopic rod upper end is hinged on the bottom surface of turntable by upper cardan, stretch Bar lower end connects lower cardan, and the other end of lower cardan connects L shape control stick, and the vertical pivot and lower cardan of L shape control stick connect It connects and rotating support is on the preceding short frame of activity, the horizontal axis end of L shape control stick is hinged in the middle part of a longitudinal direction bar, left The front forked frame on right both sides is respectively provided with the axis of orientation stretched out backward, and two axis of orientations of left and right are respectively hinged at the left and right two of steering yoke End is rotated synchronously by the front forked frame of L shape joystick driver the right and left.

Since inside is equipped with driving mechanism, user is not required to four wheel scooters of this K-type activity framed plate structure when sliding Driving force is provided with a feet step on the ground, only needs both feet to trample simultaneously and arbitrarily scrunches movable short slab downwards above scooter, It can be obtained the driving force slided forward, additionally, due to steering mechanism is equipped with, user can be straight by front foot on scooter Control turning is connect, the operation of continuous minor-circle turn may be implemented, the four-wheel of scooter can also realize that differential drives in turning It is dynamic, keep cornering operation more steady, therefore compare with four wheel scooters of conventional structure, four wheel scooters of the utility model make Use more convenient, and sliding speed is faster, and cornering operation is also more flexible, and beginner's grasp of being more convenient for can be widely used for It rides instead of walk, entertain, a variety of occasions such as body-building and tourism.

Detailed description of the invention

Fig. 1 is the schematic perspective view that four wheel scooters are driven using the front and back of backstroke K-type grillage.

Fig. 2 is the left side view of tetra- wheel scooter of Fig. 1 (by the direction coordinate in Fig. 1).

Fig. 3 is the front view of tetra- wheel scooter of Fig. 1 (by the direction coordinate in Fig. 1).

Fig. 4 is the enlarged cross-sectional view of A-A in Fig. 1.

Fig. 5 is the structural schematic diagram of V-arrangement clamping bar.

Fig. 6 is the schematic diagram that V-arrangement clamping bar is clamped at left and right sides of forward and backward movable short slab.

Fig. 7 is the schematic diagram using the rear driving four-wheel scooter of backstroke K-type grillage.

Fig. 8 is the schematic perspective view that four wheel scooters are driven using the front and back of facedown K-type grillage.

In figure: the horizontal long frame of 1-, 2- fulcrum strut, movable short slab before 3-, movable short slab after 4-, 5- thrust spring, 6- Front forked frame, 7- front axle, 8- front-wheel, elevator wheel before 9-, 10- transverse direction pulley, directly to pulley before 11-, bracing wire before 12-, 13- rear fork Frame, 14- long rear axle, 15- rear-wheel, elevator wheel after 16-, directly to pulley, 18- back guy, 19- plain thrust bearing, 20- after 17- Turntable, 21- telescopic rod, 22- upper cardan, 23- lower cardan, 24-L shape control stick, 25- steering yoke, 26- axis of orientation, 27- are anti- Sliding line, the horizontal long slab of 28-, the short frame of activity before 29-, the short frame of activity after 30-, 31- freewheel clutch, 32-V clevis bar.

Specific embodiment

The utility model is described further with reference to the accompanying drawing.

The first technical solution of the utility model is as shown in Figs 1-4, and four wheel scooters of K-type activity framed plate structure are equipped with The middle part left and right sides of horizontal long frame 1, horizontal long frame 1 is respectively provided with a upward fulcrum strut 2, and two fulcrum struts 2 are logical Cross articulated shaft and be hinged with the preceding movable short slab 3 and rear movable short slab 4 that both ends forward and backward are stretched out, horizontal long frame 1 with it is forward and backward A thrust spring 5 is respectively provided between movable short slab 3,4 to be attached, and forward and backward activity is made by the resilient support of thrust spring 5 Short slab 3,4 is tilted to upper side, thus constitutes a backstroke K-type grillage.

It is respectively hinged with a downward front forked frame 6 on two corners of long 1 front end of frame of level, two front forked frames 6 Upper end passes through hollow central siphon respectively and horizontal long frame 1 is hinged, and the lower end of two front forked frames 6 passes through front axle 7 respectively and is provided with front-wheel 8, the inside of two front-wheels 8 be respectively furnished with an inside equipped with scroll spring and can elasticity wind preceding elevator wheel 9, preceding elevator wheel 9 It is co-axially mounted with front-wheel 8 and is connected by freewheel clutch 31 with front-wheel 8, frame of two front forked frames 6 also above preceding elevator wheel 9 Equipped with lateral pulley 10；It is preceding activity short slab 3 bottom surface the right and left be respectively hinged with a bracket can swing it is preceding directly to cunning Wheel 11；The both ends of preceding bracing wire 12 are respectively to the left and right sides around preceding directly to pulley 11, then pass through two front forked frames 6 of left and right separately down Hollow central siphon, then respectively bypass the right and left lateral pulley 10, be finally respectively connected to the preceding elevator wheel 9 of the right and left On；A downward rear crotch 13, the lower end of two rear crotch 13 are respectively hinged on two corners of long 1 rear end of frame of level One root long rear axle 14 of common connection, is respectively erected with rear-wheel 15 on the long rear axle 14 in two rear crotch 13, two rear-wheels 15 it is interior Side be respectively furnished with an inside equipped with scroll spring and can the rear elevator wheel 16 that winds of elasticity, rear elevator wheel 16 and the coaxial peace of rear-wheel 15 It fills and passes through freewheel clutch 31 and be connected with rear-wheel 15；Bottom surface the right and left of movable short slab 4 is respectively hinged with a bracket afterwards Can swing it is rear directly to pulley 17；The both ends of back guy 18 are respectively to the left and right sides around later directly to pulley 17, then distinguish It is connected on the rear elevator wheel 16 of the right and left downwards.

The front end of movable short slab 3 is equipped with stepped hole before described, and stepped hole is provided with plain thrust bearing 19, preceding activity short slab 3 pass through one turntable 20 of this 19 rotating support of plain thrust bearing；It is additionally provided between preceding activity short slab 3 and horizontal long frame 1 A piece prismatic telescopic rod 21, telescopic rod 21 use pullout antenna formula stretching structure, and 21 upper end of telescopic rod is cut with scissors by upper cardan 22 It connects on the bottom surface of turntable 20,21 lower end of telescopic rod connects lower cardan 23, and the other end of lower cardan 23 connects L shape control stick The vertical pivot of 24, L shape control sticks 24 is connect with lower cardan 23 and rotating support is on horizontal long frame 1, the cross of L shape control stick 24 Shaft end is hinged on 25 middle part of a longitudinal direction bar, and the front forked frame 6 of the right and left is respectively provided with the direction stretched out backward Axis 26, two axis of orientations 26 of left and right are respectively hinged at the left and right ends of steering yoke 25, before driving the right and left by L shape control stick 24 Crotch 6 rotates synchronously.

The freewheel clutch 31 uses ratchet wheel pawl type mono-directional overrun clutch.Movable short slab 3, rear activity are short before described The upper surface of plate 4 and turntable 20 is equipped with anti-skid chequer 27.

The course of work of this four wheel scooter are as follows:

User's both feet are trampled respectively above forward and backward movable short slab 3,4, and when scrunching downwards, thrust spring 5 is stored up by compression Can, forward and backward activity short slab 3,4 is pressed downward around articulated shaft, before forward and backward elevator wheel 9,16 is incited somebody to action under the action of scroll spring at this time, Back guy 12,18 is tightened, and is allowed to not easily to fall off.When the upward foot-up of user, 5 return of thrust spring releases energy, forward and backward work Dynamic short slab 3,4 is lifted up around articulated shaft, pulls forward and backward bracing wire 12,18, and then forward and backward elevator wheel 9,16 is driven to rotate, preceding, Elevator wheel 9,16 drives front and rear wheel 8,15 to roll by freewheel clutch 31 afterwards, and scooter advances.User can both feet alternating It scrunches or a foot is fixed, another foot interval scrunches, and can scooter be driven to advance.

When needing to control scooter turning, the front foot of user rotates on the turntable 20 of movable short slab 3 before stepping down in, turntable 20 can and then rotate, and torque is transmitted on L shape control stick 24 by upper cardan 22, telescopic rod 21, lower cardan 23, then Two axis of orientations 26 of left and right are driven to rotate synchronously by steering yoke 25 by L shape control stick 24, so that two front forked frames 6 of left and right be made to drive two Front-wheel 8 realizes synchronous turn to.Due to transmitting torque using upper cardan 22, telescopic rod 21, lower cardan 23, in turning Movable short slab 3 swings up and down before having no effect on simultaneously.In addition, when scooter turning driving, preceding activity short slab 3 rebound return, Since the revolving speed of the front-wheel 8 of the right and left is different, driving force is different, the pulling force on preceding 12 both sides of bracing wire with apart from different, At this moment it is located at the preceding directly to the meeting automatic swing of pulley 11 to suitable position of 3 bottom surface of preceding movable short slab, bracing wire 12 or so two before making The pulling force on side is compensated, and differential driving is achieved in.

Due to making the limited strength of energy storage return type driving using thrust spring 5, when being climbed, driving force is not Foot.Two V-arrangement clamping bars 32 as shown in Figure 5 are also equipped with as auxiliary for this four wheel scooter, and the section of V-arrangement clamping bar 32 is U Two V-arrangement clamping bars 32 are clamped in the left and right sides of forward and backward movable short slab 3,4 when use respectively, keep forward and backward activity short by shape channel-shaped Plate 3,4 forms a V-arrangement wraping plate being linked together, as shown in fig. 6, can be obtained bigger driving force in climbing in this way.

As shown in fig. 7, and with reference to the structure of associated components in Fig. 1-6, the K-type work of second of technical solution of the utility model Four wheel scooters of dynamic framed plate structure are equipped with horizontal long frame 1, and one is respectively provided at left and right sides of the middle part of horizontal long frame 1 upwards Fulcrum strut 2, two fulcrum struts 2 are hinged with preceding movable short slab 3 that both ends forward and backward are stretched out and rear living by articulated shaft Dynamic short slab 4 is respectively provided with a thrust spring 5 between horizontal long frame 1 and forward and backward movable short slab 3,4 and is attached, passes through thrust The resilient support of spring 5 tilts forward and backward movable short slab 3,4 to upper side, thus constitutes a backstroke K-type grillage.

It is respectively hinged with a downward front forked frame 6 on two corners of long 1 front end of frame of level, two front forked frames 6 Lower end passes through front axle 7 respectively and is provided with front-wheel 8；Bottom surface the right and left of preceding activity short slab 3 is respectively hinged with a bracket can front and back What is swung is preceding directly to pulley 11；Horizontal long 1 bottom surface of frame is directly also set up to the position below pulley 11 respectively before two corresponding There is lateral pulley 10；A downward rear crotch 13, two rear forks are respectively hinged on two corners of long 1 rear end of frame of level The lower end of frame 13 connects a root long rear axle 14 jointly, is respectively erected with rear-wheel 15 on the long rear axle 14 in two rear crotch 13, and two Be provided with inside and outside rear-wheel 15 it is internal be equipped with scroll spring and can the rear elevator wheel 16 that winds of elasticity, the rear elevator wheel of two sides 16 are co-axially mounted with rear-wheel 15 and are connected respectively by freewheel clutch 31 with rear-wheel 15；The bottom surface or so of movable short slab 4 afterwards Both sides be respectively hinged with a bracket can swing it is rear directly to pulley 17；The both ends of preceding bracing wire 12 bypass to the left and right sides respectively It is preceding directly to pulley 11, then separately down bypass the right and left lateral pulley 10, be finally connected to respectively backward left and right two rear-wheels On the rear elevator wheel 16 in 15 outsides；The both ends of back guy 18 are respectively to the left and right sides around later directly to pulley 17, then separately down It is connected on the rear elevator wheel 16 of two rear-wheel of left and right, 15 inside.

The front end of movable short slab 3 is equipped with stepped hole before described, and stepped hole is provided with plain thrust bearing 19, preceding activity short slab 3 pass through one turntable 20 of this 19 rotating support of plain thrust bearing；It is additionally provided between preceding activity short slab 3 and horizontal long frame 1 A piece prismatic telescopic rod 21, telescopic rod 21 use pullout antenna formula stretching structure, and 21 upper end of telescopic rod is cut with scissors by upper cardan 22 It connects on the bottom surface of turntable 20,21 lower end of telescopic rod connects lower cardan 23, and the other end of lower cardan 23 connects L shape control stick The vertical pivot of 24, L shape control sticks 24 is connect with lower cardan 23 and rotating support is on horizontal long frame 1, the cross of L shape control stick 24 Shaft end is hinged on 25 middle part of a longitudinal direction bar, and the front forked frame 6 of the right and left is respectively provided with the direction stretched out backward Axis 26, two axis of orientations 26 of left and right are respectively hinged at the left and right ends of steering yoke 25, before driving the right and left by L shape control stick 24 Crotch 6 rotates synchronously.

As shown in figure 8, and with reference to the structure of associated components in Fig. 1-6, the K-type work of the third technical solution of the utility model Four wheel scooters of dynamic framed plate structure are equipped with horizontal long slab 28, and one is respectively provided at left and right sides of the middle part of horizontal long slab 28 downwards Fulcrum strut 2, two fulcrum struts 2 are hinged with the short frame 29 of preceding activity that both ends forward and backward are stretched out with after by articulated shaft The short frame 30 of activity, is respectively provided with a thrust spring 5 between horizontal long slab 28 and the short frame 29,30 of forward and backward activity and is attached, The short frame 29,30 of forward and backward activity is tilted to side-lower by the resilient support of thrust spring 5, thus constitutes a facedown K Template frame.

A downward front forked frame 6, two front forked frames 6 are respectively hinged on two corners of short 29 front end of frame of activity before described Upper end pass through hollow central siphon and the short frame of preceding activity 29 respectively hingedly, the lower end of two front forked frames 6 passes through front axle 7 respectively and is provided with Front-wheel 8, the inside of two front-wheels 8 be respectively furnished with an inside equipped with scroll spring and can elasticity wind preceding elevator wheel 9, preceding elevator Wheel 9 is co-axially mounted with front-wheel 8 and is connected by freewheel clutch 31 with front-wheel 8, and two front forked frames 6 are also above preceding elevator wheel 9 Be provided with lateral pulley 10；Bottom surface the right and left of horizontal 28 front end of long slab is respectively hinged with a bracket can be before swing Directly to pulley 11；The both ends of preceding bracing wire 12 are respectively to the left and right sides around preceding directly to pulley 11, then pass through left and right two separately down The hollow central siphon of front forked frame 6, then the lateral pulley 10 of the right and left is bypassed respectively, finally it is respectively connected to the preceding volume of the right and left It raises on wheel 9；A downward rear crotch 13, two rear crotch are respectively hinged on two corners of short 30 rear end of frame of activity after described 13 lower end connects a root long rear axle 14 jointly, is respectively erected with rear-wheel 15 on the long rear axle 14 in two rear crotch 13, after two The inside of wheel 15 be respectively furnished with an inside equipped with scroll spring and can the rear elevator wheel 16 that winds of elasticity, rear elevator wheel 16 and rear-wheel 15 are co-axially mounted and are connected by freewheel clutch 31 with rear-wheel 15；Bottom surface the right and left of horizontal 28 rear end of long slab is each hinged Have a bracket can swing it is rear directly to pulley 17；The both ends of back guy 18 are respectively to the left and right sides around later directly to pulley 17, then be connected on the rear elevator wheel 16 of the right and left separately down.

The front end of the horizontal long slab 28 is equipped with stepped hole, and stepped hole is provided with plain thrust bearing 19, horizontal long slab 28 Pass through one turntable 20 of this 19 rotating support of plain thrust bearing；It is additionally provided between horizontal long slab 28 and the short frame 29 of preceding activity A piece prismatic telescopic rod 21, telescopic rod 21 use pullout antenna formula stretching structure, and 21 upper end of telescopic rod is cut with scissors by upper cardan 22 It connects on the bottom surface of turntable 20,21 lower end of telescopic rod connects lower cardan 23, and the other end of lower cardan 23 connects L shape control stick The vertical pivot of 24, L shape control sticks 24 is connect with lower cardan 23 and rotating support is on the short frame 29 of preceding activity, L shape control stick 24 Horizontal axis end be hinged on the middle part of longitudinal direction bar 25, the front forked frame 6 of the right and left is respectively provided with one and stretches out backward Axis of orientation 26, two axis of orientations 26 of left and right are respectively hinged at the left and right ends of steering yoke 25, drive the right and left by L shape control stick 24 Front forked frame 6 rotate synchronously.

Above-mentioned legend is only the exemplary embodiments of the utility model, is not intended to limit the utility model, all practical at this Made any modification or equivalent replacement and improvement etc., should be included in the guarantor of the utility model within novel spirit and principle Within the scope of shield.

Claims (6)

1. a kind of four wheel scooters of K-type activity framed plate structure, it is characterized in that: four wheel scooter is equipped with horizontal long frame, It is respectively provided with a upward fulcrum strut at left and right sides of the middle part of horizontal long frame, two fulcrum struts are hinged with point by articulated shaft Not both ends are stretched out forwards, backwards preceding movable short slab and rear movable short slab, are respectively provided between horizontal long frame and forward and backward movable short slab One thrust spring is attached, and tilts forward and backward movable short slab to upper side by the resilient support of thrust spring, thus Constitute a backstroke K-type grillage；

A downward front forked frame, the upper end difference of two front forked frames are respectively hinged on two corners of the long frame front end of level By hollow central siphon and horizontal long frame articulation, the lower end of two front forked frames passes through front axle bracket equipped with front-wheel respectively, two front-wheels Inside be respectively furnished with an inside equipped with scroll spring and can elasticity winding preceding elevator wheel, preceding elevator wheel and front-wheel are co-axially mounted simultaneously It is connected by freewheel clutch with front-wheel, two front forked frames are also provided with lateral pulley above preceding elevator wheel；Preceding activity is short Bottom surface the right and left of plate be respectively hinged with a bracket can swing it is preceding directly to pulley；The both ends difference of preceding bracing wire is to the left and right Both sides are around hollow central siphon that is preceding directly to pulley, then passing through two front forked frames of left and right separately down, then bypass the right and left respectively Lateral pulley is finally respectively connected on the preceding elevator wheel of the right and left；It is each on two corners of the long back-end framework of level It is hinged with a downward rear crotch, the lower end of two rear crotch connects a root long rear axle jointly, on the long rear axle in two rear crotch It is respectively erected with rear-wheel, the inside of two rear-wheels is respectively furnished with an inside equipped with scroll spring and can the rear elevator that winds of elasticity Wheel, rear elevator wheel is co-axially mounted with rear-wheel and passes through freewheel clutch to be connected with rear-wheel；Bottom surface of movable short slab or so two afterwards Side be respectively hinged with a bracket can swing it is rear directly to pulley；The both ends of back guy respectively to the left and right sides around later directly to Pulley, then be connected on the rear elevator wheel of the right and left separately down；

The front end of movable short slab is equipped with stepped hole before described, and stepped hole is provided with plain thrust bearing, and preceding activity short slab passes through this Plain thrust bearing rotating support a turntable；It is flexible that a prismatic is additionally provided between preceding activity short slab and horizontal long frame Bar, telescopic rod use pullout antenna formula stretching structure, and telescopic rod upper end is hinged on the bottom surface of turntable by upper cardan, stretch Bar lower end connects lower cardan, and the other end of lower cardan connects L shape control stick, and the vertical pivot and lower cardan of L shape control stick connect It connects and rotating support is on horizontal long frame, the horizontal axis end of L shape control stick is hinged in the middle part of a longitudinal direction bar, left and right The front forked frame on both sides is respectively provided with the axis of orientation stretched out backward, and two axis of orientations of left and right are respectively hinged at the left and right two of steering yoke End is rotated synchronously by the front forked frame of L shape joystick driver the right and left.

2. four wheel scooters of K-type activity framed plate structure according to claim 1, it is characterized in that: the freewheel clutch Using ratchet wheel pawl type mono-directional overrun clutch.

3. four wheel scooters of K-type activity framed plate structure according to claim 1, it is characterized in that: the preceding movable short slab, The upper surface of movable short slab and turntable is equipped with anti-skid chequer afterwards.

4. four wheel scooters of K-type activity framed plate structure according to claim 1, it is characterized in that: four wheel scooter Two V-arrangement clamping bars are also equipped with as auxiliary, the section of V-arrangement clamping bar is U-lag shape, and two V-arrangement clamping bars are clamped in forward and backward activity respectively The left and right sides of short slab makes forward and backward movable short slab form a V-arrangement wraping plate being linked together.

5. a kind of four wheel scooters of K-type activity framed plate structure, it is characterized in that: four wheel scooter is equipped with horizontal long frame, It is respectively provided with a upward fulcrum strut at left and right sides of the middle part of horizontal long frame, two fulcrum struts are hinged with point by articulated shaft Not both ends are stretched out forwards, backwards preceding movable short slab and rear movable short slab, are respectively provided between horizontal long frame and forward and backward movable short slab One thrust spring is attached, and tilts forward and backward movable short slab to upper side by the resilient support of thrust spring, thus Constitute a backstroke K-type grillage；

A downward front forked frame, the lower end difference of two front forked frames are respectively hinged on two corners of the long frame front end of level Front-wheel is equipped with by front axle bracket；It is preceding activity short slab bottom surface the right and left be respectively hinged with a bracket can swing it is preceding directly to Pulley；Horizontal long frame bottom surface is directly also respectively erected with lateral pulley to the position below pulley before two corresponding；The water It puts down and is respectively hinged with a downward rear crotch on two corners of long back-end framework, the lower end of two rear crotch connects a root long jointly Rear axle is respectively erected with rear-wheel on the long rear axle in two rear crotch, is provided with inside and outside two rear-wheels and internal is equipped with scrollwork Spring and can elasticity winding rear elevator wheel, the rear elevator wheels of two sides and rear-wheel be co-axially mounted and respectively by freewheel clutch with Rear-wheel is connected；Afterwards bottom surface the right and left of movable short slab be respectively hinged with a bracket can swing it is rear directly to pulley；Before The both ends of bracing wire are respectively to the left and right sides around lateral pulley that is preceding directly to pulley, then bypassing the right and left separately down, finally It is connected on the rear elevator wheel on the outside of two rear-wheels of left and right respectively backward；The both ends of back guy respectively to the left and right sides around later directly to Pulley, then be connected on the rear elevator wheel on the inside of two rear-wheels of left and right separately down；

The front end of movable short slab is equipped with stepped hole before described, and stepped hole is provided with plain thrust bearing, and preceding activity short slab passes through this Plain thrust bearing rotating support a turntable；It is flexible that a prismatic is additionally provided between preceding activity short slab and horizontal long frame Bar, telescopic rod use pullout antenna formula stretching structure, and telescopic rod upper end is hinged on the bottom surface of turntable by upper cardan, stretch Bar lower end connects lower cardan, and the other end of lower cardan connects L shape control stick, and the vertical pivot and lower cardan of L shape control stick connect It connects and rotating support is on horizontal long frame, the horizontal axis end of L shape control stick is hinged in the middle part of a longitudinal direction bar, left and right The front forked frame on both sides is respectively provided with the axis of orientation stretched out backward, and two axis of orientations of left and right are respectively hinged at the left and right two of steering yoke End is rotated synchronously by the front forked frame of L shape joystick driver the right and left.

6. a kind of four wheel scooters of K-type activity framed plate structure, it is characterized in that: four wheel scooter is equipped with horizontal long slab, water Be respectively provided with a downward fulcrum strut at left and right sides of the middle part of flat long slab, two fulcrum struts by articulated shaft be hinged with respectively to The preceding short frame of activity and the rear short frame of activity that rear and front end is stretched out, are respectively provided between horizontal long slab and the forward and backward short frame of activity One thrust spring is attached, and tilts the forward and backward short frame of activity to side-lower by the resilient support of thrust spring, by This constitutes a facedown K-type grillage；

A downward front forked frame, the upper end point of two front forked frames are respectively hinged with before described on two corners of the short frame front end of activity Not Tong Guo hollow central siphon and the preceding short frame articulation of activity, the lower end of two front forked frames passes through front axle bracket respectively and is equipped with front-wheel, before two The inside of wheel be respectively furnished with an inside equipped with scroll spring and can the preceding elevator wheel that winds of elasticity, preceding elevator wheel coaxially pacifies with front-wheel It fills and passes through freewheel clutch and be connected with front-wheel, two front forked frames are also provided with lateral pulley above preceding elevator wheel；It is horizontal Bottom surface the right and left of long front edge of board be respectively hinged with a bracket can swing it is preceding directly to pulley；Distinguish at the both ends of preceding bracing wire To the left and right sides around hollow central siphon that is preceding directly to pulley, then passing through two front forked frames of left and right separately down, then respectively around left and right The lateral pulley on both sides is finally respectively connected on the preceding elevator wheel of the right and left；Two of the short back-end framework of activity after described Respectively it is hinged with a downward rear crotch on corner, the lower end of two rear crotch connects a root long rear axle jointly, in two rear crotch Be respectively erected with rear-wheel on long rear axle, the inside of two rear-wheels be respectively furnished with an inside equipped with scroll spring and can elasticity wind Elevator wheel afterwards, rear elevator wheel is co-axially mounted with rear-wheel and passes through freewheel clutch to be connected with rear-wheel；The bottom of horizontal long slab rear end Face the right and left be respectively hinged with a bracket can swing it is rear directly to pulley；The both ends of back guy respectively to the left and right sides around Later it directly to pulley, then is connected on the rear elevator wheel of the right and left separately down；

The front end of the horizontal long slab is equipped with stepped hole, and stepped hole is provided with plain thrust bearing, and horizontal long slab passes through this plane Thrust bearing rotating support a turntable；It is additionally provided with a prismatic telescopic rod between horizontal long slab and the preceding short frame of activity, is stretched Contracting bar uses pullout antenna formula stretching structure, and telescopic rod upper end is hinged on the bottom surface of turntable by upper cardan, under telescopic rod End connection lower cardan, the other end of lower cardan connect L shape control stick, and the vertical pivot of L shape control stick is connect simultaneously with lower cardan Rotating support is on the preceding short frame of activity, and the horizontal axis end of L shape control stick is hinged in the middle part of a longitudinal direction bar, left and right two The front forked frame on side is respectively provided with the axis of orientation stretched out backward, and two axis of orientations of left and right are respectively hinged at the left and right ends of steering yoke, It is rotated synchronously by the front forked frame of L shape joystick driver the right and left.