CN106275183B - Pedal-type electric tricycle - Google Patents

Pedal-type electric tricycle Download PDF

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Publication number
CN106275183B
CN106275183B CN201610777632.8A CN201610777632A CN106275183B CN 106275183 B CN106275183 B CN 106275183B CN 201610777632 A CN201610777632 A CN 201610777632A CN 106275183 B CN106275183 B CN 106275183B
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CN
China
Prior art keywords
frame
plate
brake
carriage
rod
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Expired - Fee Related
Application number
CN201610777632.8A
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Chinese (zh)
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CN106275183A (en
Inventor
禄银生
高中阳
刘志达
吕俊玲
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Henan Wulinfeng Industry Co ltd
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Henan Wulinfeng Industry Co ltd
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Priority to CN201610777632.8A priority Critical patent/CN106275183B/en
Publication of CN106275183A publication Critical patent/CN106275183A/en
Application granted granted Critical
Publication of CN106275183B publication Critical patent/CN106275183B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K5/00—Cycles with handlebars, equipped with three or more main road wheels
    • B62K5/02—Tricycles
    • B62K5/027—Motorcycles with three wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
    • B60G11/04—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only arranged substantially parallel to the longitudinal axis of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
    • B60G11/10—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
    • B60P1/04—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element
    • B60P1/16—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element actuated by fluid-operated mechanisms
    • B60P1/162—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element actuated by fluid-operated mechanisms the hydraulic system itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D61/00—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern
    • B62D61/06—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern with only three wheels
    • B62D61/08—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern with only three wheels with single front wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J1/00—Saddles or other seats for cycles; Arrangement thereof; Component parts
    • B62J1/28—Other additional equipment, e.g. back-rests for children
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K25/00—Axle suspensions
    • B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Automatic Cycles, And Cycles In General (AREA)

Abstract

The pedal sitting type electric tricycle comprises a frame consisting of four-beam keel and a flat frame assembly, wherein a rear carriage is arranged at the top of the rear side of the frame, the bottom of the rear side of the frame is connected with a rear axle assembly through a plate spring damping mechanism, the left end and the right end of the rear axle assembly are respectively provided with a rear wheel, and the frame is provided with a brake system for braking the rear wheels; a self-discharging device is arranged between the flat frame assembly and the rear carriage, a dual-purpose structure of a backrest and a passenger seat is arranged, and a self-walking structure driven by a lithium battery is improved on the front wheel. The invention is firm and durable, has large carrying capacity and more uniform carrying capacity distribution; the brake effect is good, the hand brake is comfortable and safe to operate, the manpower is saved due to self-unloading, and the functional function of the backrest is enhanced; the plate spring damping structure is fixed in front and movable in back, so that the safety and the comfort are improved; has the functions of energy conservation, environmental protection, emission reduction and continuous long-distance driving.

Description

Pedal-type electric tricycle
Technical Field
The invention relates to a tricycle, in particular to a pedal-sitting type electric tricycle.
Background
In recent years, electric tricycles carrying people or goods have become one of the vehicles commonly used by people. However, the existing tricycle in the market has the following defects or shortcomings:
1. two keels are generally adopted, so that the strength is low, the bearing capacity is poor, and the stress is uneven; the keel is welded in a segmented mode, so that welding spots are more, the appearance is influenced, the keel is easy to break, and the rollover prevention performance is poor; the two keels also have great influence on the installation strength of the front bumper, and the safety is not high;
2. the brake system of the rear wheel of the electric tricycle is complex, the manufacturing cost is high, and many tricycles do not have hand brake devices, and the electric tricycle with the hand brake device has the hand brake rod arranged at the pedal plate, so that when the hand brake is used, a driver needs to bend down to operate, and thus, the great potential safety hazard is caused;
3. as the tricycle needs to carry goods, the loading and unloading of the tricycle need manual operation, and more time and physical force are consumed. Especially for materials such as sand, gravel, grain, soil, etc., it is very troublesome without the self-discharging device. The rear compartment of a plurality of electric tricycles is generally fixedly arranged on a frame at present and cannot be self-unloaded;
4. the backrest at the rear side of the driver seat is fixedly arranged, when people need to carry the seat, the rear carriage is not provided with the seat, and the people sitting in the rear carriage can carry the stools to sit or directly sit on the side walls of the rear carriage, so that the passengers can be very dangerous in emergency braking. The seat is fixedly arranged on the rear carriage, so that the seat cannot be detached when goods are loaded and pulled, the quantity of the loaded goods is small, and the goods are loaded and unloaded more difficultly;
5. a plate spring is generally adopted between a frame and a rear wheel spindle of the electro-tricycle as a bearing and damping part. The plate spring is of a circular arc structure with two ends tilted, the two tilted parts of the plate spring are connected with the frame, and the self elasticity of the plate spring is utilized to achieve the effects of bearing, buffering and damping. At present, the eye of book at leaf spring both ends all is connected with the lug of frame bottom through a pendulum rod, and this kind of connection structure is when the wheel is through the road surface of jolting, and the leaf spring can the fore-and-aft swing, and the bearing capacity is less, and the impact force of the not equidirectional that receives can lead to the damage of pendulum rod, leads to the traffic accident to take place, and the security is relatively poor. In addition, the bushings in the eye at the two ends of the leaf spring are often damaged by impact;
6. the existing general electric tricycles are generally of riding type, and a driver rides on a driver seat and is tired after a long time.
These many drawbacks, however, require improvement to meet market demands and customer needs.
Disclosure of Invention
The pedal sitting type electric tricycle is firm and durable, large in load carrying capacity, strong in braking performance, capable of unloading goods, high in driving comfort degree, large in bearing capacity, not prone to damage of damping parts and strong in safety and reliability, and a driver seat backrest can serve as a passenger seat.
In order to solve the technical problems, the invention adopts the following technical scheme: the pedal sitting type electric tricycle comprises a frame, wherein a front fork damping assembly is arranged at the front end of the frame, a handlebar is arranged at the upper end of the front fork damping assembly, a front wheel is arranged at the lower end of the front fork damping assembly, a rear carriage is arranged at the top of the rear side of the frame, the bottom of the rear side of the frame is connected with a rear axle assembly through a plate spring damping mechanism, the left end and the right end of the rear axle assembly are respectively provided with a rear wheel, a driving seat and a power device positioned below the driving seat are arranged on the frame at the front side of the rear carriage, and a brake system for braking the rear wheels is arranged on the frame from front to back; the rear carriage comprises a portal frame, a bottom plate is horizontally arranged at the lower part of the rear side of the portal frame, a left carriage body is hinged at the left side edge of the bottom plate, a right carriage body is hinged at the right side edge of the bottom plate, a rear carriage door is hinged at the upper parts of the rear sides of the left carriage body and the right carriage body, the front side of the left carriage body and the left side of the portal frame are connected through a left lock catch, the front side of the right carriage body and the right side of the portal frame are connected through a right lock catch, the left side and the right side of the rear carriage door are respectively connected with the rear sides of the left carriage body and the right carriage body through rear lock catches, the frame comprises a left auxiliary keel, a left main keel, a right main keel and a right auxiliary keel which are arranged along the front-back direction, the left auxiliary keel, the left main keel, the right main keel and the right auxiliary keel are sequentially arranged from left to right, the front parts of the left main keel, a first cross beam is horizontally arranged between the right side of the upper part of the left main keel and the upper part of the right main keel, a central beam is vertically arranged on the upper surface of the first cross beam, a handlebar sleeve is obliquely arranged at the upper end of the central beam in a high-back and low-front mode, the front upper end of the left main keel is bent rightwards to be connected with the left side of the first cross beam, the front upper end of the right main keel is bent leftwards to be connected with the right side of the first cross beam, a left front bumper is arranged between the front upper end of the left auxiliary keel and the left side of the front upper part of the left main keel, and a right front bumper is arranged between the front upper end of the right auxiliary keel and the left side of the front upper part of the right main keel; a second cross beam is horizontally arranged at the rear ends of the left main keel and the right main keel, the left end of the second cross beam is connected with the right side of the left auxiliary keel, and the right end of the second cross beam is connected with the left side of the right auxiliary keel; the rear end of the left auxiliary keel and the rear end of the right auxiliary keel are both bent upwards and connected with a flat frame assembly;
the gantry is provided with an upper horizontal beam and a lower horizontal beam, the gantry is provided with a baffle positioned at the lower part of the lower horizontal beam, the upper edges of the lower horizontal beam, the baffle, the left carriage body, the right carriage body and the rear carriage door are flush, the gantry is provided with a fixed backrest positioned above the upper horizontal beam, the lower horizontal beam is hinged with a turnover frame through two first hinges, the front side of the turnover frame is provided with a turnover backrest, the gantry is provided with a limit block for limiting the turnover frame to continuously turn over forwards in a vertical state, the upper edge of the turnover backrest is contacted with the lower edge of the upper horizontal beam, and the rear side of the turnover frame is connected with the upper horizontal beam through a bolt;
the upper side of the front part of the left carriage body and the upper side of the front part of the right carriage body are both provided with a supporting structure, and the two supporting structures have the same structure and are arranged in a bilateral symmetry manner; the supporting structure on the left compartment body comprises a second hinge, a turnover plate and a turnover support, the left side face of the turnover plate is in contact with the right side face of the left compartment body, the upper side of the turnover plate is rotatably connected to the left compartment body through the second hinge, the second hinge is arranged on the right side of the top of the left compartment body, the right side face of the turnover plate is fixedly connected with the left side of the turnover support, a shock pad is arranged at the top of the turnover support, and the height of the upper surface of the shock pad is greater than or equal to the height of the top of the second hinge;
the bottom of the rear side of the rear carriage is hinged to the flat frame assembly, the flat frame assembly is provided with a rubber mat for supporting the bottom of the rear carriage, the middle of the flat frame assembly is provided with a hydraulic jacking system below the rear carriage, the bottom of the rear carriage is provided with a connecting rod driving structure, and the front end and the rear end of the connecting rod driving structure are respectively in linkage arrangement with the flat frame assembly and the rear carriage door;
the brake system comprises a brake distribution shaft arranged on the lower side of the middle part of a left auxiliary keel and a right auxiliary keel along the left-right horizontal direction, a front brake plate arranged on the lower side of the front part of the right main keel, a hand brake rod arranged on the right side of a driver seat and two rear pull rods of which the rear ends are connected with rear brake connecting arms on two rear wheel brake drums, wherein the bottom of the hand brake rod is consistent with the upper surface of the driver seat in height, the bottoms of the middle part and the two ends of the brake distribution shaft are respectively and vertically and fixedly provided with a middle foot brake connecting arm, the three middle foot brake connecting arms are all arranged in parallel, the front ends of the two rear pull rods are respectively and correspondingly connected with the middle foot brake connecting arms at the two ends of the brake distribution shaft, the front brake plate is hinged with a bent foot lever through a brake shaft, the upper end of the foot lever extends upwards out of the frame and faces the driver seat, a front foot brake connecting arm is vertically and arranged on the brake shaft, and a front pull rod is arranged between the front foot brake connecting arm and the middle foot brake connecting arm at the middle part of the upper part of the brake distribution shaft, a reset spring is arranged between one of the middle foot brake connecting arms and the rear brake plate on the rear side of the frame, one of the middle foot brake connecting arms is connected with a power-off switch through a power-off spring, and the power-off switch is arranged on the rear brake plate; the power output end of the hand brake rod is connected with a middle foot brake connecting arm at the right end of the brake distribution shaft through a brake pull wire;
the plate spring damping mechanism comprises a front lifting lug, a rear lifting lug, a swinging plate and a plate spring, the middle part of the plate spring is connected with the rear axle assembly through a U-shaped bolt, the upper part of the U-shaped bolt is sleeved with a pressing plate which is pressed with the top of the plate spring, the plate springs are connected through a connecting bolt, and the middle part of the pressing plate is provided with a through hole for penetrating through the connecting bolt; the front lifting lug and the rear lifting lug are fixedly arranged at the bottom of the flat frame assembly, and the front end and the rear end of the plate spring are respectively provided with a front rolling lug and a rear rolling lug; the front lifting lug is connected with the front rolling lug through a front rotary oiling lubricating structure, the number of the swing plates is two, the two swing plates are correspondingly arranged along the front-back direction, the upper ends of the two swing plates are hinged to the front side and the rear side of the rear lifting lug, and the lower ends of the two swing rods are connected with the rear rolling lug through a rear rotary oiling lubricating structure; the front rotary oil injection lubricating structure and the rear rotary oil injection lubricating structure have the same structure;
the power device comprises a transmission shaft, a storage battery pack and a direct current motor, wherein the storage battery pack and the direct current motor are both arranged on the frame, a main shaft of the direct current motor is in transmission connection with the front end of the transmission shaft, and the rear end of the transmission shaft is in transmission connection with the power input end of the rear axle assembly; and a protective plate with air holes is uniformly arranged on the outer side of the storage battery and the direct current motor on the frame.
The front lifting lug comprises a left lifting plate and a right lifting plate, the right side of the upper part of the left lifting plate is fixed on the flat frame assembly, the left side of the upper part of the right lifting plate is fixed on the flat frame assembly, and the left lifting plate and the right lifting plate are correspondingly provided with through holes on the left and right sides; the front rotary oiling lubrication structure comprises a pin shaft bolt and a steel sleeve sleeved outside the pin shaft bolt, the steel sleeve is inserted into a front rolling lug, the pin shaft bolt, the steel sleeve and the front rolling lug are located between a left hanging plate and a right hanging plate, two ends of the pin shaft bolt penetrate through a perforation and are fixedly connected with the left hanging plate or the right hanging plate through a pin shaft nut, a grease nipple is arranged at the head of the pin shaft bolt, an axial oiling hole is formed in the head of the pin shaft bolt along the axis direction, radial oiling holes are correspondingly formed in the middle of the steel sleeve and the pin shaft bolt along the radial direction, the inner end of each radial oiling hole is communicated with the axial oiling hole, and the radial oiling holes are communicated with the inner wall of the front rolling lug.
The hydraulic jacking system comprises an operating handle arranged on a frame, a reversing valve, a hydraulic oil tank, an oil pump and a jacking hydraulic cylinder, wherein the operating handle is arranged on the side part of a driving seat of the tricycle, the lower end of the operating handle is connected with an operating end of the reversing valve, the left side and the right side of the upper part of the jacking hydraulic cylinder are rotatably connected to the middle part of the frame through support shafts, the reversing valve, the hydraulic oil tank and the jacking hydraulic cylinder are connected through a high-pressure oil pipe, the support shafts are of hollow structures, one ends of the support shafts are plugged, the other ends of the support shafts are connected with the high-pressure oil pipe through oil pipe connectors, the inside of the jacking hydraulic cylinder is communicated with the inside of the support shafts, limiting discs positioned on two sides of the jacking hydraulic cylinder are arranged on the support shafts, and the upper end of a piston rod of the jacking hydraulic cylinder is hinged to the bottom of a rear carriage.
The connecting rod driving structure comprises a front transverse rod, a rear frame, a connecting plate, a pressing rod, a connecting rod, a push-pull rod and a stop rod, wherein the front transverse rod is horizontally arranged at the bottom of the rear carriage, the connecting plate is arranged at the rear side of the front transverse rod, the rear end of the pressing rod is fixedly connected with the lower end of the connecting rod to form an L-shaped structure, the connecting part of the pressing rod and the connecting rod is rotatably connected onto the connecting plate, the rear frame is provided with the bottom of the rear end of the rear carriage, the lower end of the stop rod is rotatably connected onto the rear frame, the upper end of the stop rod is connected with a lock hook, an obtuse angle towards the front is formed between the lock hook and the stop rod, the upper part of the lock hook and the lower part of the stop rod are hinged, a hinged seat is arranged at the front side of the lower part of the stop rod, the front end of the push-pull rod is hinged with the upper end of the connecting rod, and the rear end of the hinged seat is hinged with the hinged seat; the rear end of the pressure rod is in threaded connection with an adjusting bolt, the head of the adjusting bolt is arranged downwards, and an adjusting nut in abutting fit with the lower surface of the pressure rod is in threaded connection with the adjusting bolt; when the rear carriage is horizontally placed on the flat frame assembly, the head of the adjusting bolt is in top press fit with the upper surface of the flat frame assembly, and the front side of the upper part of the stop lever is in top press fit with the lower part of the rear side of the rear carriage door.
Spring reset structures are arranged between the rear pull rod and the middle foot brake connecting arms at the two ends and between the rear end of the front pull rod and the middle foot brake connecting arm, and a pull wire tensioning and adjusting structure is arranged between the brake pull wire and the middle foot brake connecting arm at the right end; the upper end of the foot lever is connected with a foot brake pedal through a bolt and nut type height adjusting structure.
The top parts of the left carriage body and the right carriage body are respectively provided with a heightening frame, and each heightening frame is internally provided with a supporting rod correspondingly connected with the top parts of the left carriage body and the right carriage body; the left side and the right side of the bottom plate are both provided with a guard plate, and the front side of each guard plate is provided with a pedal hole.
The front wheel comprises a left wheel hub bracket, a right wheel hub bracket, a wheel hub and a tire sleeved outside the wheel hub, wherein the left wheel hub bracket and the right wheel hub bracket have the same structure and are arranged symmetrically left and right; the left hub support and the right hub support are respectively composed of three support arms, the inner ends of the three support arms are fixedly connected, the included angle between two adjacent support arms is 120 degrees, the side parts of the outer ends of the three support arms are respectively provided with a supporting guide wheel, the central lines of the three supporting guide wheels on the left hub support are positioned on the same cylindrical surface, and the three supporting guide wheels on the left hub support and the three supporting guide wheels on the right hub support are arranged in a left-right one-to-one opposite mode; a disc-shaped dust shield is fixedly arranged on the right side of the left hub bracket and the left side of the right hub bracket respectively and is positioned among the three supporting guide wheels on the same side;
the three supporting guide wheels on the left side extend into and are connected to the circular track on the left side in a rolling mode, and the three supporting guide wheels on the right side extend into and are connected to the circular track on the right side in a rolling mode; an installation frame positioned in the wheel hub is arranged between the left wheel hub bracket and the right wheel hub bracket, and a rechargeable lithium battery and a front wheel power driving mechanism for driving the wheel hub to rotate are arranged on the installation frame; the outer sides of the inner ends of the three support arms are provided with fixed blocks, the fixed blocks are provided with mounting holes which are concentric with the circular track, and central shafts connected with the lower end of the front fork shock absorption assembly penetrate through the mounting holes.
The front wheel power driving mechanism comprises a driving motor positioned below the rechargeable lithium battery, a main shaft of the driving motor is in transmission connection with a gear, an inner gear ring is arranged on the inner wall of the wheel hub, and the gear is meshed with the inner gear ring.
By adopting the technical scheme, the invention has the following principle and beneficial effects:
1. the storage battery pack is arranged on the left auxiliary keel, the left main keel, the right main keel and the right auxiliary keel, so that a good supporting effect is achieved. The left auxiliary keel, the left main keel, the right auxiliary keel and the flat frame assembly are arranged in the structure, so that the width of the whole tricycle is increased, the length of the whole tricycle is increased, the load capacity of the tricycle can be improved, the stress is more uniform, and the safety performance is enhanced. The four-beam keel structure formed by the left auxiliary keel, the left main keel, the right main keel and the right auxiliary keel is lower than the structure of the flat frame assembly, so that the gravity center of the tricycle is reduced, and installation dependence is provided for other components of the tricycle.
2. Because the front lifting lug and the front rolling lug at the front end of the plate spring have no displacement in the front-back direction, the rear lifting lug is connected with the rear rolling lug at the rear end of the plate spring through the swinging plate, namely the plate spring moves backwards when being stressed, the plate spring damping mechanism improves the damping effect and determines the direction of the backward movement of the plate spring when being stressed, thereby avoiding the impact between parts, reducing the hidden danger of the damage of the damping part, certainly, increasing the load capacity, and finally improving the safety and the comfort of the tricycle in running;
for the front rotary oil injection lubricating structure and the rear rotary oil injection lubricating structure, a grease gun can be used for injecting grease into the inner walls of the front lug and the rear lug through a grease nipple, so that the lubricating performance between the grease gun and the steel bushing is fully improved, and the service life of the steel bushing is prolonged.
3. When needing to unload, the driver sits on driving seat, handheld control handle, the drive switching-over valve, the oil pump passes through high pressure fuel pipe with the hydraulic oil in the hydraulic tank and supplies oil to in the jacking pneumatic cylinder, the piston rod extension of pneumatic cylinder, upwards jack-up the back carriage, the rear carriage is the fulcrum with rear side bottom, the rear side is upwards lifted to the front portion, along with lifting up of back carriage, adjusting bolt on the depression bar leaves the frame upper surface, goods in the back carriage bulldozes the back carriage door, back carriage door lower part bulldozes the latch hook, latch hook and pin use the pin lower extreme as the fulcrum and rotate downwards, the pin drives the connecting rod through articulated seat and push-and-pull rod and rotates backwards, because adjusting bolt on the clamp plate has left the frame, the depression bar just rotates downwards. The latch hook breaks away from the back carriage door, and the back carriage door is trivially covered by the goods, and the goods automatically slide down from the bottom plate of the back carriage to the back through the back carriage door. After the goods are automatically unloaded, the reversing valve is driven, the hydraulic oil in the jacking hydraulic cylinder is pumped out by the oil pump, the piston rod contracts downwards, the rear carriage descends, the plane where the rear carriage door is located is kept in a vertical state, when the head of the lower end of the adjusting bolt contacts the upper surface of the frame, the pressing rod rotates upwards, the connecting rod integrated with the pressing rod rotates forwards, the connecting rod pulls the push-pull rod forwards, the push-pull rod pulls the stop lever and the lock hook forwards through the hinged seat, and when the rear carriage falls onto the rubber mat on the frame, the lock hook also just pushes and contacts the rear end faces of the two side walls of the rear carriage door and the rear carriage. And finally, closing the oil pump. The support shaft is of a hollow structure and is communicated with the interior of the hydraulic cylinder, and the support shaft also has the function of a high-pressure joint. The limiting disc arranged on the supporting shaft plays a role in positioning the supporting shaft not to move left and right, and the accuracy of lifting positioning is ensured. When the rear carriage is supported on the rubber mat, a gap is reserved between the lock hook and the rear carriage door, the adjusting nut can be unscrewed firstly, and then the adjusting bolt is screwed, so that the distance between the head of the adjusting bolt and the pressure rod is increased, the lock hook can be enabled to tightly press the rear carriage door, and the rear carriage door is prevented from generating collision noise in the advancing process.
4. When the service brake is braked, the service brake pedal is stepped on by the foot, the brake shaft is driven to rotate through the foot pedal rod, the front brake connecting arm integrated with the brake shaft rotates forwards, the front brake connecting arm drives the middle service brake connecting arm in the middle to rotate forwards through the front pull rod, the middle service brake connecting arm in the middle drives the brake distribution shaft to rotate, the middle service brake connecting arms at the two ends of the brake distribution shaft rotate forwards, the pulling force of the reset spring is overcome, the power-off of the driving motor of the tricycle is driven through the power-off spring to pull the power-off switch, the two rear pull rods are driven to pull the rear brake connecting arm on the brake drum simultaneously, and two rear wheels are braked. When the foot brake pedal is released, all the components are reset under the action of the reset spring. In addition, because the hand brake rod is arranged on the right side of the driving seat, the hand brake is not required to be stooped down when in use, the hand brake is convenient and comfortable, and the driving safety performance is enhanced. When the foot brake is suddenly damaged, the hand brake can be used for braking or the hand brake rod is operated when the vehicle is parked again. The hand brake rod is pulled upwards to pull the brake pull wire, the brake pull wire drives the brake distribution shaft to rotate through the middle foot brake connecting arm at the right end, and therefore the brake drum can be braked by driving the rear foot brake connecting arm through the two rear pull rods.
5. When upset frame and upset back were in the vertical state, the stopper was placed and is overturned forward and damage first hinge, and the bolt is used for injecing upset frame and upset back and overturns backward at the vertical state, and the driver can sit driving seat and lean on the upset back. When taking the passenger in the carriage of back, open the bolt, will overturn frame and upset back and overturn to the horizontality backward, the frame that overturns supports on the shock pad on left side and right side, and the back just can supply two at least passengers to take as the seat, has avoided the inconvenience that the passenger can't sit in the carriage of back like this to the security of traveling has been improved, the driver at this moment just leans on fixed back. When the rear carriage ships goods, lift the upset back and insert the bolt, upwards overturn 180 to left carriage body top and right carriage body top two bearing structure simultaneously. The arrangement of the heightening frame can increase the quantity of goods; the pedal hole is used for the foot stepping function when people go up the rear carriage from the side part of the tricycle.
6. When the storage battery pack is under-voltage and is not powered on, the driving motor can be started, the driving motor drives the gear to rotate, the gear drives the gear ring to rotate, and the gear ring drives the wheel hub and the tire to rotate, so that the front wheel can move forwards for the driving wheel. The wheel hub is supported by the supporting guide wheels arranged on the left wheel hub bracket and the right wheel hub bracket, and the three supporting guide wheels on the same side form three vertexes of a regular triangle, so that the wheel hub has good stability, the weight is fully reduced, and the production cost is reduced.
In conclusion, the tricycle is firm and durable, the bearing capacity of the tricycle is fully improved, and the load is distributed more uniformly; the braking effect is good, and the hand brake is comfortable and safe to control; the automation degree is greatly improved, a hydraulic jacking mode is adopted, the lifting of the rear carriage can be linked with the opening and closing of the rear carriage door, the cargo transporting and loading and unloading efficiency is improved, and the manpower is saved; when passengers are in the seat, the seat is turned to the horizontal state to serve as a passenger seat, and when passengers are not in the seat, the seat is turned to the vertical state to serve as a backrest of a driver, so that the functional function of the backrest is fully enhanced; the plate spring damping structure which is fixed in front and moves in back prolongs the service life of related parts and improves the safety and the comfort; the spare automatic walking function of front wheel of designedly designs to the condition of battery trouble or undervoltage is prepared for, and drive structure is also very unique, and the function is more various.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a perspective view of the frame of FIG. 1;
FIG. 3 is a top plan view of the rear compartment of FIG. 1 with the rear compartment removed;
FIG. 4 is an enlarged view at A of FIG. 1;
FIG. 5 is an enlarged schematic view of the hydraulic jacking system and the linkage drive arrangement of the present invention;
FIG. 6 is a top view of the hydraulic jacking system of FIG. 5;
FIG. 7 is an enlarged view at B in FIG. 5;
FIG. 8 is an enlarged view of the rear compartment of FIG. 1;
FIG. 9 is a right side view of FIG. 8;
FIG. 10 is an enlarged view at C of FIG. 9;
FIG. 11 is an enlarged view of the leaf spring shock absorbing mechanism of FIG. 1;
FIG. 12 is a cross-sectional view taken along line D-D of FIG. 11;
fig. 13 is a schematic view of the internal structure of the front wheel.
Detailed Description
As shown in fig. 1-13, the pedal-sitting type electric tricycle of the present invention includes a frame 11, a front fork shock absorbing assembly 12 is disposed at the front end of the frame 11, a handle bar 13 is disposed at the upper end of the front fork shock absorbing assembly 12, a front wheel 14 is disposed at the lower end of the front fork shock absorbing assembly 12, a rear compartment 15 is disposed at the top of the rear side of the frame 11, the bottom of the rear side of the frame 11 is connected to a rear axle assembly 17 through a plate spring shock absorbing mechanism 16, a rear wheel 18 is disposed at each of the left and right ends of the rear axle assembly 17, a driving seat 19 and a power device 20 disposed below the driving seat 19 are disposed at the front side of the rear compartment 15 on the frame 11, and a braking system for braking the rear wheel 18 is disposed from front to rear on the frame 11; the rear carriage 15 comprises a portal frame 21, a bottom plate is horizontally arranged at the lower part of the rear side of the portal frame 21, a left carriage body 131 is hinged at the left side edge of the bottom plate, a right carriage body 46 is hinged at the right side edge of the bottom plate, a rear carriage door 47 is hinged at the upper parts of the rear sides of the left carriage body 131 and the right carriage body 46, the front side of the left carriage body 131 is connected with the left side of the portal frame 21 through a left lock catch, the front side of the right carriage body 46 is connected with the right side of the portal frame 21 through a right lock catch, the left side and the right side of the rear carriage door 47 are respectively connected with the rear sides of the left carriage body 131 and the right carriage body 46 through a rear lock catch, the frame 11 comprises a left auxiliary keel 1, a left main keel 2, a right main keel 3 and a right auxiliary keel 4 which are all arranged along the front-back direction, the front parts of the left auxiliary keel 1, the left main keel 2, the right main keel 3 and the right auxiliary keel 4 are sequentially arranged from left to right, the left side, the front parts of the left auxiliary keel 1, the left main keel 2, the right main keel 3 and the left side of the left main keel are all upwards bent, a first cross beam 5 is horizontally arranged between the upper part of the left main keel 3, the upper surface of the first cross beam 5 is vertical to be provided with a center beam 6, the upper end of the center beam 6 is inclined to be provided with a handlebar 13 sleeve 7, the upper end of the left main keel 2 is bent rightwards to be connected with the left side of the first cross beam 5, the upper end of the right main keel 3 is bent leftwards to be connected with the right side of the first cross beam 5, a left front bumper 8 is arranged between the left side of the upper part of the left main keel 2 and the upper part of the left main keel 1, and a right front bumper 9 is arranged between the left side of the upper part of the right main keel 3 and the upper part of the right main keel 4. A second cross beam 10 is horizontally arranged at the rear ends of the left main keel 2 and the right main keel 3, the left end of the second cross beam 10 is connected with the right side of the left auxiliary keel 1, and the right end of the second cross beam 10 is connected with the left side of the right auxiliary keel 4; the rear end of the left auxiliary keel 1 and the rear end of the right auxiliary keel 4 are both bent upwards and connected with a flat frame assembly 22.
The gantry 21 is provided with an upper horizontal beam 23 and a lower horizontal beam 24, the gantry 21 is provided with a baffle 130 positioned at the lower part of the lower horizontal beam 24, the baffle 130, a left carriage body 131, a right carriage body 46 and the upper edge of a rear carriage door 47 are flush, the gantry 21 is provided with a fixed backrest 48 positioned above the upper horizontal beam 23, the lower horizontal beam 24 is hinged with a turnover frame 50 through two first hinges 49, the front side of the turnover frame 50 is provided with a turnover backrest 51, the gantry 21 is provided with a limiting block 52 used for limiting the turnover frame 50 to continuously turn over forwards in a vertical state, the upper edge of the turnover backrest 51 is in contact with the lower edge of the upper horizontal beam 23, and the rear side of the turnover frame 50 is connected with the upper horizontal beam 23 through a bolt 53.
The upper side of the front part of the left carriage body 131 and the upper side of the front part of the right carriage body 46 are respectively provided with a supporting structure 54, and the two supporting structures 54 have the same structure and are arranged in a bilateral symmetry manner; the supporting structure 54 on the left compartment body 131 comprises a second hinge 55, a turnover plate 56 and a turnover support 57, the left side surface of the turnover plate 56 is in contact with the right side surface of the left compartment body 131, the upper side of the turnover plate 56 is rotatably connected to the left compartment body 131 through the second hinge 55, the second hinge 55 is arranged on the right side of the top of the left compartment body 131, the right side surface of the turnover plate 56 is fixedly connected with the left side of the turnover support 57, a shock pad 58 is arranged at the top of the turnover support 57, and the height of the upper surface of the shock pad 58 is greater than or equal to the height of the top of the second hinge 55.
Heightening frames 99 are arranged at the tops of the left carriage body 131 and the right carriage body 46, and a supporting rod 100 correspondingly connected with the tops of the left carriage body 131 and the right carriage body 46 is arranged in each heightening frame 99; both the left side and the right side of the bottom plate are provided with a guard plate 101, and the front side of each guard plate 101 is provided with a pedal hole 102.
The bottom of the rear side of the rear carriage 15 is hinged to the flat frame assembly 22, the flat frame assembly 22 is provided with a rubber mat 45 for supporting the bottom of the rear carriage 15, the middle of the flat frame assembly 22 is provided with a hydraulic jacking system below the rear carriage 15, the bottom of the rear carriage 15 is provided with a connecting rod driving structure, and the front end and the rear end of the connecting rod driving structure are respectively linked with the flat frame assembly 22 and a rear carriage door 47.
The hydraulic jacking system comprises an operating handle 25, a reversing valve 26, a hydraulic oil tank 27, an oil pump 28 and a jacking hydraulic cylinder 29 which are all arranged on the front side of the frame 1, the operating handle 25 is arranged on the side part of a driving seat of the tricycle, the lower end of the operating handle 25 is connected with the operating end of the reversing valve 26, the left side and the right side of the upper part of the jacking hydraulic cylinder 29 are rotatably connected to the middle part of the flat frame assembly 22 through support shafts 31, the reversing valve 26, the hydraulic oil tank 27, the oil pump 28 and the jacking hydraulic cylinder 29 are connected through high-pressure oil pipes 30, each support shaft 31 is of a hollow structure, one end of each support shaft 31 is blocked, the other end of each support shaft 31 is connected with the corresponding high-pressure oil pipe 30 through an oil pipe joint 32, the interior of each jacking hydraulic cylinder 29 is communicated with the interior of each support shaft 31, limiting discs 33 located on the two sides of each support shaft 31 are arranged, and the upper end of a piston rod of each jacking hydraulic cylinder 29 is hinged to the bottom of the rear carriage 15.
The connecting rod driving structure comprises a front cross rod 34, a rear frame 35, a connecting plate 36, a pressing rod 37, a connecting rod 38, a push-pull rod 39 and a stop rod 40, wherein the front cross rod 34 is horizontally arranged at the bottom of the rear carriage 15, the connecting plate 36 is arranged at the rear side of the front cross rod 34, the rear end of the pressing rod 37 is fixedly connected with the lower end of the connecting rod 38 to form an L-shaped structure, the joint of the pressing rod 37 and the connecting rod 38 is rotatably connected onto the connecting plate 36, the rear frame 35 is provided with the bottom of the rear end of the rear carriage 15, the lower end of the stop rod 40 is rotatably connected onto the rear frame 35, the upper end of the stop rod 40 is connected with a locking hook 44, an obtuse angle towards the front is formed between the locking hook 44 and the stop rod 40, the upper part and the lower part of the stop rod 40 are provided with a hinged seat 41 at the front side of the lower part of the stop rod 40, the front end of the push-pull rod 39 is hinged with the upper end of the connecting rod 38, and the rear end of the hinged seat 41; the rear end of the pressure lever 37 is in threaded connection with an adjusting bolt 42, the head of the adjusting bolt 42 is arranged downwards, and an adjusting nut 43 which is in abutting fit with the lower surface of the pressure lever 37 is in threaded connection with the adjusting bolt 42; when the rear compartment 15 is horizontally placed on the platform assembly 22, the head of the adjusting bolt 42 is in press fit with the upper surface of the platform assembly 22, and the upper front side of the stop lever 40 is in press fit with the lower portion of the rear side of the rear compartment door 47.
The brake system comprises a brake distribution shaft 63 arranged on the lower side of the middle parts of a left auxiliary keel 1 and a right auxiliary keel 4 along the left-right horizontal direction, a front brake plate 59 arranged on the lower side of the front part of the right main keel 3, a hand brake rod 60 arranged on the right side of a driving seat 19 and two rear pull rods 62 with the rear ends connected with rear brake connecting arms 61 on brake drums of two rear wheels 18, wherein the bottom of the hand brake rod 60 is consistent with the height of the upper surface of the driving seat 19, the bottom of the middle part and the two ends of the brake distribution shaft 63 are respectively and vertically and fixedly provided with a middle foot brake connecting arm 64, the three middle foot brake connecting arms 64 are all arranged in parallel, the front ends of the two rear pull rods 62 are respectively and correspondingly connected with the middle foot brake connecting arms 64 at the two ends of the brake distribution shaft 63, the front brake plate 59 is hinged with a bent foot lever 66 through a brake shaft 65, the upper end of the foot brake lever 66 extends upwards out of a frame 11 and faces the driving seat 19, a front foot brake connecting arm 67 is vertically and fixedly arranged on the brake shaft 65, a front pull rod 68 is arranged between the front foot brake connecting arm 67 and one middle foot brake connecting arm 64 in the middle of the upper part of the brake distribution shaft 63, a return spring 70 is arranged between one middle foot brake connecting arm 64 and the rear brake plate 69 on the rear side of the frame 11, one middle foot brake connecting arm 64 is connected with a power-off switch 72 through a power-off spring 71, and the power-off switch 72 is arranged on the rear brake plate 69; the power output end of the hand brake lever 60 is connected with a middle foot brake connecting arm 64 at the right end of the brake distributing shaft 63 through a brake pull wire 73.
Spring reset structures 94 are arranged between the rear pull rod 62 and the middle service brake connecting arms 64 at the two ends and between the rear end of the front pull rod 68 and the middle service brake connecting arm 64 in the middle, and a pull wire tensioning adjusting structure 96 is arranged between the brake pull wire 73 and the middle service brake connecting arm 64 at the right end; the upper end of the foot lever 66 is connected with a foot brake pedal 98 through a bolt-nut type height adjusting structure 97.
The plate spring damping mechanism 16 comprises a front lifting lug 74, a rear lifting lug 75, a swinging plate 76 and a plate spring 78, the middle part of the plate spring 78 is connected with the rear axle assembly 17 through a U-shaped bolt 77, a crimping plate 79 in crimping with the top of the plate spring 78 is sleeved on the upper part of the U-shaped bolt 77, the plate springs 78 are connected through a connecting bolt 80, and a through hole for penetrating through the connecting bolt 80 is formed in the middle part of the crimping plate 79; the front lifting lug 74 and the rear lifting lug 75 are fixedly arranged at the bottom of the flat frame assembly 22, and the front end and the rear end of the plate spring 78 are respectively provided with a front rolling lug 81 and a rear rolling lug 82; the front lifting lug 74 is connected with the front rolling lug 81 through a front rotary oil injection lubricating structure 83, two swinging plates 76 are arranged, the two swinging plates 76 are correspondingly arranged along the front and back direction, the upper ends of the two swinging plates 76 are hinged to the front side and the back side of the rear lifting lug 75, and the lower ends of the two swinging rods are connected with the rear rolling lug 82 through a rear rotary oil injection lubricating structure 84; the front pivot oiling lubrication structure 83 and the rear pivot oiling lubrication structure 84 are identical in construction.
The front lifting lug 74 comprises a left lifting plate 87 and a right lifting plate 88, the right side of the upper part of the left lifting plate 87 is fixed on the horizontal frame assembly 22, the left side of the upper part of the right lifting plate 88 is fixed on the horizontal frame assembly 22, and the left lifting plate 87 and the right lifting plate 88 are correspondingly provided with through holes at the left and right; the front rotary oil injection lubricating structure 83 comprises a pin bolt 89 and a steel sleeve 90 sleeved outside the pin bolt 89, the steel sleeve 90 is inserted into a front rolling lug 81, the pin bolt 89, the steel sleeve 90 and the front rolling lug 81 are located between a left hanging plate 87 and a right hanging plate 88, two ends of the pin bolt 89 penetrate through a through hole and are fixedly connected with the left hanging plate 87 or the right hanging plate 88 through a pin nut 132, a grease nipple 91 is arranged at the head of the pin bolt 89, an axial oil injection hole 92 is formed in the head of the pin bolt 89 along the axis direction, radial oil injection holes 93 are correspondingly formed in the middle of the steel sleeve 90 and the middle of the pin bolt 89 along the radial direction, the inner end of each radial oil injection hole 93 is communicated with the axial oil injection hole 92, and the radial oil injection holes 93 are communicated with the inner wall of the front rolling lug 81.
The power device 20 comprises a transmission shaft 117, a storage battery pack and a direct current motor, wherein the direct current motor and the storage battery pack are arranged on the frame 11 side by side from left to right, the storage battery pack supplies power for the direct current motor, a main shaft of the direct current motor is in transmission connection with the front end of the transmission shaft 117, and the rear end of the transmission shaft 117 is in transmission connection with a power input end of the rear axle assembly 17. And a protective plate 116 with air holes is uniformly arranged on the outer side of the storage battery pack and the direct current motor on the frame 11.
The spring return structure 94 is used to assist the return spring in returning the front 62 and rear 68 tie rods. The cable tension adjustment structure 96 is used to adjust the brake cable 73 to ensure good performance of the hand brake. The bolt-nut type height adjusting structure 97 is used for adjusting the height of the service brake pedal 98, so that the operation of different people is facilitated.
The front wheel 14 comprises a left wheel hub bracket, a right wheel hub bracket, a wheel hub 105 and a tire sleeved outside the wheel hub 105, wherein the left wheel hub bracket and the right wheel hub bracket have the same structure and are arranged symmetrically left and right; the left hub support and the right hub support are composed of three support arms 103, the inner ends of the three support arms 103 are fixedly connected, the included angle between two adjacent support arms 103 is 120 degrees, the outer end side parts of the three support arms 103 are respectively provided with a support guide wheel 104, the central lines of the three support guide wheels 104 on the left hub support are positioned on the same cylindrical surface, and the three support guide wheels 104 on the left hub support and the three support guide wheels 104 on the right hub support are arranged in a left-right one-to-one manner; a disc-shaped dust shield is fixedly arranged on the right side of the left hub bracket and the left side of the right hub bracket respectively, and the dust shields are positioned among the three supporting guide wheels 104 on the same side.
The three supporting guide wheels 104 on the left side extend into and are connected to the circular track 106 on the left side in a rolling mode, and the three supporting guide wheels 104 on the right side extend into and are connected to the circular track 106 on the right side in a rolling mode; an installation frame 107 positioned in the wheel hub 105 is arranged between the left wheel hub bracket and the right wheel hub bracket, and a rechargeable lithium battery 108 and a front wheel power driving mechanism for driving the wheel hub 105 to rotate are arranged on the installation frame 107. The outer sides of the inner ends of the three support arms 103 are provided with fixing blocks 134, the fixing blocks 134 are provided with mounting holes 135 which are concentric with the circular track 106, and a central shaft connected with the lower end of the front fork shock absorption assembly 12 penetrates through the mounting holes 135.
The front wheel power driving mechanism comprises a driving motor 109 positioned below the rechargeable lithium battery 108, a gear 110 is connected to a main shaft of the driving motor 109 in a transmission manner, an inner gear ring 111 is arranged on the inner wall of the wheel hub 105, and the gear 110 is meshed with the inner gear ring 111.
The principle and the beneficial effects of the invention are as follows:
1. the storage battery pack is arranged on the left auxiliary keel 1, the left main keel 2, the right main keel 3 and the right auxiliary keel 4, so that a good supporting effect is achieved. The left auxiliary keel 1, the left main keel 2, the right main keel 3, the right auxiliary keel 4 and the flat frame assembly 22 are arranged, so that the width of the whole tricycle is increased, the length of the whole tricycle is increased, the load capacity of the tricycle can be improved, the stress is more uniform, and the safety performance is enhanced. The four-beam keel structure formed by the left cross keel 1, the left main keel 2, the right main keel 3 and the right cross keel 4 is lower than the structure of the flat frame assembly 22, so that the gravity center of the tricycle is reduced, and installation dependence is provided for other components of the tricycle.
2. Because there is no displacement in the fore-and-aft direction between the front lifting lug 74 and the front rolling lug 81 at the front end of the plate spring 78, the rear lifting lug 75 is connected with the rear rolling lug 82 at the rear end of the plate spring 78 through the swinging plate 76, namely the plate spring 78 moves backwards when being stressed, the damping mechanism 16 of the plate spring 78 determines the direction of the backwards movement of the plate spring 78 when being stressed while improving the damping effect, thus avoiding the impact between the parts, reducing the hidden danger of the damage of the damping parts, of course, increasing the load capacity, and finally improving the safety and comfort of the tricycle in driving;
for the front rotary oiling lubricating structure 83 and the rear rotary oiling lubricating structure 84, grease can be injected into the inner walls of the front rolling lug 81 and the rear rolling lug 82 through the grease nipple 91 by using a grease gun, so that the lubricating performance between the grease gun and the steel sleeve 90 is fully improved, and the service life of the steel sleeve 90 is prolonged.
3. When unloading is needed, a driver sits on a driving seat, holds the operating handle 25 by hand, drives the reversing valve 26, the oil pump 28 supplies hydraulic oil in the hydraulic oil tank 27 into the jacking hydraulic cylinder 29 through the high-pressure oil pipe 30, the piston rod of the hydraulic cylinder extends to jack the rear carriage 15 upwards, the rear side of the rear carriage 15 takes the bottom of the rear side as a fulcrum, the rear side lifts upwards towards the front part, along with the lifting of the rear carriage 15, the adjusting bolt 42 on the pressure rod 37 leaves the upper surface of the flat frame assembly 22, goods in the rear carriage 15 push the rear carriage door 47, the lower part of the rear carriage door 47 pushes the latch hook 44, the latch hook 44 and the stop rod 40 rotate downwards by taking the lower end of the stop rod 40 as the fulcrum, the stop rod 40 drives the connecting rod 38 to rotate backwards through the hinged seat 41 and the push-pull rod 39, and the pressure rod 37 rotates downwards due to the fact that the adjusting bolt 42 on the pressure plate leaves the flat frame assembly 22. The latch hook 44 is disengaged from the rear compartment door 47, the rear compartment door 47 is covered by the cargo, and the cargo automatically slides down from the bottom plate of the rear compartment 15 to the rear through the rear compartment door 47. After the goods are automatically unloaded, the reversing valve 26 is driven, the hydraulic oil in the jacking hydraulic cylinder 29 is pumped out by the oil pump 28, the piston rod is contracted downwards, the rear carriage 15 descends downwards, the plane where the rear carriage door 47 is located is kept in a vertical state, when the head of the lower end of the adjusting bolt 42 contacts the upper surface of the flat frame assembly 22, the pressing rod 37 rotates upwards, the connecting rod 38 integrated with the pressing rod 37 rotates forwards, the connecting rod 38 pulls the push pull rod 39 forwards, the push pull rod 39 pulls the stop rod 40 and the locking hook 44 forwards through the hinged seat 41, and when the rear carriage 15 falls onto the rubber pad 45 on the flat frame assembly 22, the locking hook 44 just presses and contacts the rear carriage door 47 with the rear end faces of the two side walls of the rear carriage 15. And finally, the oil pump 28 is closed.
4. During foot brake, a foot steps on a foot brake pedal 98, the foot lever 66 drives the brake shaft 65 to rotate, the front foot brake connecting arm 67 integrated with the brake shaft 65 rotates forwards, the front foot brake connecting arm 67 drives the middle foot brake connecting arm 64 to rotate forwards through the front pull rod 68, the middle foot brake connecting arm 64 drives the brake distribution shaft 63 to rotate, the middle foot brake connecting arms 64 at two ends of the brake distribution shaft 63 rotate forwards, the tension of the reset spring 70 is overcome, the power-off switch 72 is pulled through the power-off spring 71 to power off the driving motor 109 of the tricycle, the two rear pull rods 62 are driven to pull the rear brake connecting arms 61 on the brake drum, and the two rear wheels 18 are braked. When the foot brake pedal 98 is released, the above components are all reset under the action of the return spring 70. In addition, because the hand brake lever 60 is arranged at the right side of the driving seat 19, the hand brake is not required to be stooped down when being used, the hand brake is convenient and comfortable, and the driving safety performance is enhanced. The handbrake lever 60 is operated when the service brake is suddenly damaged to brake or to stop the vehicle again. The hand brake lever 60 is pulled upwards to pull the brake pull wire 73, the brake pull wire 73 drives the brake distribution shaft 63 to rotate through the middle service brake connecting arm 64 at the right end, and thus the two rear pull rods 62 can drive the rear service brake connecting arm to brake the brake drum.
5. When the turnover frame 50 and the turnover backrest 51 are in a vertical state, the limiting block 52 is placed to turn forwards to damage the first hinge 49, the bolt 53 is used for limiting the turnover frame 50 and the turnover backrest 51 to turn backwards in the vertical state, and a driver can sit on the driving seat 19 and lean against the turnover backrest 51. When a passenger sits in the rear compartment 15, the latch 53 is opened, the tilt frame 50 and the tilt backrest 51 are tilted backward to a horizontal state, the tilt frame 50 is supported on the left and right shock absorbing cushions 58, and the backrest can be used as a seat for at least two passengers to sit, so that the inconvenience that the passenger cannot sit in the rear compartment 15 is avoided, the driving safety is improved, and the driver at this time leans on the fixed backrest 48. When the rear compartment 15 is loaded, the flip back 51 is lifted up and the latch 53 is inserted, and the two support structures 54 are flipped up 180 ° to the top of the left compartment 131 and the top of the right compartment 46. The arrangement of the heightening frame 99 can increase the amount of goods; the pedal holes 102 are used for the foot of a person stepping from the side of the tricycle up the rear compartment 15.
6. When the storage battery pack is under-voltage and is not powered, the driving motor 109 can be started, the driving motor 109 drives the gear 110 to rotate, the gear 110 drives the gear ring to rotate, and the gear ring drives the wheel hub 105 and the tire to rotate, so that the front wheel 14 can move forward for driving. The wheel hub 105 is supported by the supporting guide wheels 104 arranged on the left wheel hub bracket and the right wheel hub bracket, and the three supporting guide wheels 104 on the same side form three vertexes of a regular triangle, so that the stability is good, the weight is fully reduced, and the production cost is reduced.
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.

Claims (5)

1. The pedal sitting type electric tricycle comprises a frame, wherein a front fork damping assembly is arranged at the front end of the frame, a handlebar is arranged at the upper end of the front fork damping assembly, a front wheel is arranged at the lower end of the front fork damping assembly, a rear carriage is arranged at the top of the rear side of the frame, the bottom of the rear side of the frame is connected with a rear axle assembly through a plate spring damping mechanism, the left end and the right end of the rear axle assembly are respectively provided with a rear wheel, a driving seat and a power device positioned below the driving seat are arranged on the frame at the front side of the rear carriage, and a brake system for braking the rear wheels is arranged on the frame from front to back; the back carriage includes the portal frame, portal frame rear side lower part level is equipped with the bottom plate, bottom plate left side border articulates there is the left railway carriage or compartment body, bottom plate right side border articulates there is the right railway carriage or compartment body, the left side railway carriage or compartment body and right railway carriage or compartment body rear side upper portion articulate there is the back railway carriage or compartment door, be connected through left hasp between the left side railway carriage or compartment body front side and the portal frame left side, be connected through right hasp between the right side railway carriage or compartment body front side and the portal frame right side, back railway carriage or compartment door left side and right side pass through the back hasp with left railway carriage or compartment body rear side and right railway carriage or compartment body rear side respectively and are connected its characterized in that: the frame comprises a left auxiliary keel, a left main keel, a right main keel and a right auxiliary keel which are all arranged along the front-back direction, the left auxiliary keel, the left main keel, the right main keel and the right auxiliary keel are sequentially arranged from left to right, the front parts of the left auxiliary keel, the left main keel, the right main keel and the right auxiliary keel are all bent upwards, a first cross beam is horizontally arranged between the right side of the upper part of the left main keel and the left side of the upper part of the right main keel, the upper surface of the first cross beam is vertically provided with a center beam, a handle sleeve is obliquely arranged at the rear part of the upper end of the center beam and at the front part, the front upper end of the left main keel is bent rightwards and is connected with the left side of the first cross beam, the front upper end of the right main keel is bent leftwards and is connected with the right side of the first cross beam, a left front bumper is arranged between the front upper end of the left auxiliary keel and the left side of the front upper part of the left main keel, and a right front bumper is arranged between the front upper end of the right auxiliary keel and the left side of the front upper part of the main keel; a second cross beam is horizontally arranged at the rear ends of the left main keel and the right main keel, the left end of the second cross beam is connected with the right side of the left auxiliary keel, and the right end of the second cross beam is connected with the left side of the right auxiliary keel; the rear end of the left auxiliary keel and the rear end of the right auxiliary keel are both bent upwards and connected with a flat frame assembly;
the gantry is provided with an upper horizontal beam and a lower horizontal beam, the gantry is provided with a baffle positioned at the lower part of the lower horizontal beam, the upper edges of the lower horizontal beam, the baffle, the left carriage body, the right carriage body and the rear carriage door are flush, the gantry is provided with a fixed backrest positioned above the upper horizontal beam, the lower horizontal beam is hinged with a turnover frame through two first hinges, the front side of the turnover frame is provided with a turnover backrest, the gantry is provided with a limit block for limiting the turnover frame to continuously turn over forwards in a vertical state, the upper edge of the turnover backrest is contacted with the lower edge of the upper horizontal beam, and the rear side of the turnover frame is connected with the upper horizontal beam through a bolt;
the upper side of the front part of the left carriage body and the upper side of the front part of the right carriage body are both provided with a supporting structure, and the two supporting structures have the same structure and are arranged in a bilateral symmetry manner; the supporting structure on the left compartment body comprises a second hinge, a turnover plate and a turnover support, the left side face of the turnover plate is in contact with the right side face of the left compartment body, the upper side of the turnover plate is rotatably connected to the left compartment body through the second hinge, the second hinge is arranged on the right side of the top of the left compartment body, the right side face of the turnover plate is fixedly connected with the left side of the turnover support, a shock pad is arranged at the top of the turnover support, and the height of the upper surface of the shock pad is greater than or equal to the height of the top of the second hinge;
the bottom of the rear side of the rear carriage is hinged to the flat frame assembly, the flat frame assembly is provided with a rubber mat for supporting the bottom of the rear carriage, the middle of the flat frame assembly is provided with a hydraulic jacking system below the rear carriage, the bottom of the rear carriage is provided with a connecting rod driving structure, and the front end and the rear end of the connecting rod driving structure are respectively in linkage arrangement with the flat frame assembly and the rear carriage door;
the brake system comprises a brake distribution shaft arranged on the lower side of the middle part of a left auxiliary keel and a right auxiliary keel along the left-right horizontal direction, a front brake plate arranged on the lower side of the front part of the right main keel, a hand brake rod arranged on the right side of a driver seat and two rear pull rods of which the rear ends are connected with rear brake connecting arms on two rear wheel brake drums, wherein the bottom of the hand brake rod is consistent with the upper surface of the driver seat in height, the bottoms of the middle part and the two ends of the brake distribution shaft are respectively and vertically and fixedly provided with a middle foot brake connecting arm, the three middle foot brake connecting arms are all arranged in parallel, the front ends of the two rear pull rods are respectively and correspondingly connected with the middle foot brake connecting arms at the two ends of the brake distribution shaft, the front brake plate is hinged with a bent foot lever through a brake shaft, the upper end of the foot lever extends upwards out of the frame and faces the driver seat, a front foot brake connecting arm is vertically and arranged on the brake shaft, and a front pull rod is arranged between the front foot brake connecting arm and the middle foot brake connecting arm at the middle part of the upper part of the brake distribution shaft, a reset spring is arranged between one of the middle foot brake connecting arms and the rear brake plate on the rear side of the frame, one of the middle foot brake connecting arms is connected with a power-off switch through a power-off spring, and the power-off switch is arranged on the rear brake plate; the power output end of the hand brake rod is connected with a middle foot brake connecting arm at the right end of the brake distribution shaft through a brake pull wire;
the plate spring damping mechanism comprises a front lifting lug, a rear lifting lug, a swinging plate and a plate spring, the middle part of the plate spring is connected with the rear axle assembly through a U-shaped bolt, the upper part of the U-shaped bolt is sleeved with a pressing plate which is pressed with the top of the plate spring, the plate springs are connected through a connecting bolt, and the middle part of the pressing plate is provided with a through hole for penetrating through the connecting bolt; the front lifting lug and the rear lifting lug are fixedly arranged at the bottom of the flat frame assembly, and the front end and the rear end of the plate spring are respectively provided with a front rolling lug and a rear rolling lug; the front lifting lug is connected with the front rolling lug through a front rotary oiling lubricating structure, the number of the swing plates is two, the two swing plates are correspondingly arranged along the front-back direction, the upper ends of the two swing plates are hinged to the front side and the rear side of the rear lifting lug, and the lower ends of the two swing rods are connected with the rear rolling lug through a rear rotary oiling lubricating structure; the front rotary oil injection lubricating structure and the rear rotary oil injection lubricating structure have the same structure;
the power device comprises a transmission shaft, a storage battery pack and a direct current motor, wherein the storage battery pack and the direct current motor are both arranged on the frame, a main shaft of the direct current motor is in transmission connection with the front end of the transmission shaft, and the rear end of the transmission shaft is in transmission connection with the power input end of the rear axle assembly; a protective plate with air holes is uniformly arranged on the outer side of the storage battery and the direct current motor on the frame;
the front lifting lug comprises a left lifting plate and a right lifting plate, the right side of the upper part of the left lifting plate is fixed on the flat frame assembly, the left side of the upper part of the right lifting plate is fixed on the flat frame assembly, and the left lifting plate and the right lifting plate are correspondingly provided with through holes on the left and right sides; the front rotary oiling lubrication structure comprises a pin shaft bolt and a steel sleeve sleeved outside the pin shaft bolt, the steel sleeve is inserted in a front rolling lug, the pin shaft bolt, the steel sleeve and the front rolling lug are all positioned between a left hanging plate and a right hanging plate, two ends of the pin shaft bolt penetrate through a perforation and are fixedly connected with the left hanging plate or the right hanging plate through a pin shaft nut, the head of the pin shaft bolt is provided with a grease nipple, the head of the pin shaft bolt is provided with an axial grease injection hole along the axis direction, the middle parts of the steel sleeve and the pin shaft bolt are correspondingly provided with radial grease injection holes along the radial direction, the inner end of the radial grease injection hole is communicated with the axial grease injection hole, and the radial grease injection hole is communicated with the inner wall of the front rolling lug;
the hydraulic jacking system comprises an operating handle arranged on a frame, a reversing valve, a hydraulic oil tank, an oil pump and a jacking hydraulic cylinder, wherein the operating handle is arranged on the side part of a driving seat of the tricycle, the lower end of the operating handle is connected with an operating end of the reversing valve, the left side and the right side of the upper part of the jacking hydraulic cylinder are rotatably connected to the middle part of the frame through support shafts, the reversing valve, the hydraulic oil tank and the jacking hydraulic cylinder are connected through a high-pressure oil pipe, the support shafts are of hollow structures, one ends of the support shafts are plugged, the other ends of the support shafts are connected with the high-pressure oil pipe through oil pipe connectors, the inside of the jacking hydraulic cylinder is communicated with the inside of the support shafts, limiting discs positioned on two sides of the jacking hydraulic cylinder are arranged on the support shafts, and the upper end of a piston rod of the jacking hydraulic cylinder is hinged to the bottom of a rear carriage.
2. The pedal-seating electro-tricycle of claim 1, wherein: the connecting rod driving structure comprises a front transverse rod, a rear frame, a connecting plate, a pressing rod, a connecting rod, a push-pull rod and a stop rod, wherein the front transverse rod is horizontally arranged at the bottom of the rear carriage, the connecting plate is arranged at the rear side of the front transverse rod, the rear end of the pressing rod is fixedly connected with the lower end of the connecting rod to form an L-shaped structure, the connecting part of the pressing rod and the connecting rod is rotatably connected onto the connecting plate, the rear frame is provided with the bottom of the rear end of the rear carriage, the lower end of the stop rod is rotatably connected onto the rear frame, the upper end of the stop rod is connected with a lock hook, an obtuse angle towards the front is formed between the lock hook and the stop rod, the upper part of the lock hook and the lower part of the stop rod are hinged, a hinged seat is arranged at the front side of the lower part of the stop rod, the front end of the push-pull rod is hinged with the upper end of the connecting rod, and the rear end of the hinged seat is hinged with the hinged seat; the rear end of the pressure rod is in threaded connection with an adjusting bolt, the head of the adjusting bolt is arranged downwards, and an adjusting nut in abutting fit with the lower surface of the pressure rod is in threaded connection with the adjusting bolt; when the rear carriage is horizontally placed on the flat frame assembly, the head of the adjusting bolt is in top press fit with the upper surface of the flat frame assembly, and the front side of the upper part of the stop lever is in top press fit with the lower part of the rear side of the rear carriage door.
3. The pedal-seating electro-tricycle of claim 1, wherein: spring reset structures are arranged between the rear pull rod and the middle foot brake connecting arms at the two ends and between the rear end of the front pull rod and the middle foot brake connecting arm, and a pull wire tensioning and adjusting structure is arranged between the brake pull wire and the middle foot brake connecting arm at the right end; the upper end of the foot lever is connected with a foot brake pedal through a bolt and nut type height adjusting structure.
4. The pedal-seating electro-tricycle of claim 1, wherein: the top parts of the left carriage body and the right carriage body are respectively provided with a heightening frame, and each heightening frame is internally provided with a supporting rod correspondingly connected with the top parts of the left carriage body and the right carriage body; the left side and the right side of the bottom plate are both provided with a guard plate, and the front side of each guard plate is provided with a pedal hole.
5. The pedal-seating electro-tricycle of claim 1, wherein: the front wheel comprises a left wheel hub bracket, a right wheel hub bracket, a wheel hub and a tire sleeved outside the wheel hub, wherein the left wheel hub bracket and the right wheel hub bracket have the same structure and are arranged symmetrically left and right; the left hub support and the right hub support are respectively composed of three support arms, the inner ends of the three support arms are fixedly connected, the included angle between two adjacent support arms is 120 degrees, the side parts of the outer ends of the three support arms are respectively provided with a supporting guide wheel, the central lines of the three supporting guide wheels on the left hub support are positioned on the same cylindrical surface, and the three supporting guide wheels on the left hub support and the three supporting guide wheels on the right hub support are arranged in a left-right one-to-one opposite mode; a disc-shaped dust shield is fixedly arranged on the right side of the left hub bracket and the left side of the right hub bracket respectively and is positioned among the three supporting guide wheels on the same side;
the three supporting guide wheels on the left side extend into and are connected to the circular track on the left side in a rolling mode, and the three supporting guide wheels on the right side extend into and are connected to the circular track on the right side in a rolling mode; an installation frame positioned in the wheel hub is arranged between the left wheel hub bracket and the right wheel hub bracket, and a rechargeable lithium battery and a front wheel power driving mechanism for driving the wheel hub to rotate are arranged on the installation frame; the outer sides of the inner ends of the three support arms are provided with fixed blocks, the fixed blocks are provided with mounting holes which are concentric with the circular track, and central shafts connected with the lower end of the front fork shock absorption assembly penetrate through the mounting holes;
the front wheel power driving mechanism comprises a driving motor positioned below the rechargeable lithium battery, a main shaft of the driving motor is in transmission connection with a gear, an inner gear ring is arranged on the inner wall of the wheel hub, and the gear is meshed with the inner gear ring.
CN201610777632.8A 2016-08-31 2016-08-31 Pedal-type electric tricycle Expired - Fee Related CN106275183B (en)

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CN201610777632.8A CN106275183B (en) 2016-08-31 2016-08-31 Pedal-type electric tricycle

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Application Number Priority Date Filing Date Title
CN201610777632.8A CN106275183B (en) 2016-08-31 2016-08-31 Pedal-type electric tricycle

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Publication number Priority date Publication date Assignee Title
DE102020004287B3 (en) * 2020-07-16 2021-11-04 Robert Virant THREE-WHEELED ELECTRIC VEHICLE ACCORDING TO EC VEHICLE CLASS L2e-U
CN112356959B (en) * 2020-11-02 2023-03-07 贵州大学 Electric tricycle
CN112722138A (en) * 2021-02-03 2021-04-30 浙江欧凯车业有限公司 Electric vehicle

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JP2000078707A (en) * 1998-08-28 2000-03-14 Daiwa Sangyo:Kk Motor-driven tricycle
CN2428347Y (en) * 2000-07-13 2001-05-02 薛建南 Electric tricycle
CN203186181U (en) * 2013-04-14 2013-09-11 韩志刚 Field engineering dumper truck
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