CN216969242U - Four-wheel electric vehicle - Google Patents

Abstract

A four-wheel electric vehicle is characterized in that two front wheels are mounted in front of a frame through a front wheel device, and the front wheel device comprises a transverse steel plate, a shock absorption assembly, a threaded telescopic rod, a direction rotating sleeve, a fixed shaft and a fixed connecting disc; the direction rotating sleeve is sleeved on the fixed shaft; the top of the direction rotating sleeve is provided with a fixed sleeve which is fixedly connected with a fixed shaft; the direction rotating sleeve is welded with the fixed connecting disc; one end of the shock absorbing component is fixedly connected with the fixed sleeve, and the other end of the shock absorbing component is fixed on the frame; one end of the threaded telescopic rod is connected with the steering gear, and the other end of the threaded telescopic rod is connected with the fixed connecting disc; the transverse steel plate is respectively fixedly connected with the chassis and the two front wheels. The four-wheel electric vehicle enhances the practicability through the improved design of the front and rear wheel structures and the like, has good safety performance and small occupied area, can shield wind and rain and conveniently carry higher articles, and is suitable for better vehicles in cities and towns and villages.

Description

Four-wheel electric vehicle

Technical Field

The utility model relates to a four-wheel electric vehicle.

Background

The existing small four-wheel electric vehicle has various types, is convenient to go out, is not blown by wind, rain, sunshine and the like, and is pursued by people. But light four-wheel electric motor car stability is relatively poor, and brake power is little, and the flexibility is lower, just less often to can shelter from the electric motor car that weathers and can conveniently draw higher goods again. Therefore, there is a need for a four-wheeled electric vehicle that is both lightweight and highly flexible.

Disclosure of Invention

The utility model provides a four-wheel electric vehicle, which has the advantages of enhanced practicability, good safety performance, small occupied area, wind and rain shielding, convenience for carrying higher articles and suitability for better vehicles in cities and towns and villages through the improved design of the front and rear wheel structures, the structures of a hood and a vehicle door and the like.

The technical scheme adopted by the utility model is as follows: a four-wheel electric vehicle comprises a frame, two front wheels and two rear wheels which are correspondingly arranged on the frame, a chassis, a hood and a vehicle door; the two front wheels are arranged in front of the frame through a front wheel device, and the front wheel device comprises a transverse steel plate, a shock absorption assembly, a threaded telescopic rod, a direction rotating sleeve, a fixed shaft and a fixed connecting disc; the shock absorption assembly, the threaded telescopic rod, the direction rotating sleeve, the fixed shaft and the fixed connecting disc are symmetrically arranged, and each shock absorption assembly, the threaded telescopic rod, the direction rotating sleeve, the fixed shaft and the fixed connecting disc correspond to one front wheel; each direction rotating sleeve corresponds to one fixed shaft, and the direction rotating sleeves are sleeved on the corresponding fixed shafts and can rotate relative to the fixed shafts; the top of the direction rotating sleeve is provided with a fixed sleeve which is fixedly connected with a fixed shaft; a wave ball is arranged between the fixed sleeve and the direction rotating sleeve; the direction rotating sleeve is welded with the fixed connecting disc; the front wheel axle is arranged on the fixed connecting disc; one end of the shock absorption component is fixedly connected with the fixed sleeve, and the other end of the shock absorption component is fixed on the frame; the two ends of the threaded telescopic rod are spherical, one end of the threaded telescopic rod is connected with the steering gear through a direction lug plate, and the other end of the threaded telescopic rod is connected with the fixed connecting disc through the direction lug plate; the transverse steel plate is fixedly connected with the chassis and the two front wheels respectively.

The further technical scheme is as follows: the two rear wheels are arranged behind the frame through a rear wheel device, and the rear wheel device comprises a rear axle body, a straight steel plate and a shock absorption assembly; the two rear wheels are arranged at two ends of the rear axle body; one end of the straight steel plate is fixedly connected with the chassis, and the other end of the straight steel plate is fixedly connected with the rear axle body; each rear wheel pair is provided with a shock absorption assembly, one end of the shock absorption assembly is fixedly connected with the rear axle body, and the other end of the shock absorption assembly is fixed on the frame.

The further technical scheme is as follows: the brake system comprises a brake connecting rod head, a front wheel brake oil pump, an oil pipe, a front wheel brake pad and a rear wheel brake pad; the front wheel brake oil pump is connected with a front wheel brake pad through an oil pipe; the brake connecting rod head is in a 7-shaped shape and comprises a transverse section and a vertical section, a front wheel brake contact is arranged at the upper end of the vertical section, and a foot brake rear wheel rod is arranged at the lower end of the vertical section; the brake connecting rod head controls a front wheel brake oil pump through a front wheel brake contact, and the front wheel is controlled to brake through the brake oil pump; the brake connecting rod head controls the rear wheel brake pad through the brake cable.

The further technical scheme is as follows: the hood comprises a front hood cover and a rear hood cover, the front hood cover and the rear hood cover are spliced with each other, a drainage through groove is formed in the position where the front hood cover is spliced with each other, and a connecting piece connected with the front hood cover is arranged on the position, corresponding to the splicing position, of the rear hood cover; the front canopy cover can be folded and overturned to be accommodated at the rear part of the driver seat, and the rear canopy cover can be folded and overturned to be accommodated at the rear outer part of the vehicle.

The further technical scheme is as follows: the front end of the front canopy cover can be clamped with the windshield cross beam, the rear end of the front canopy cover is hinged with a connecting rod, the connecting rod is hinged and mounted on a frame of the frame, a limiting groove for limiting the rotation of the connecting rod is arranged on the frame of the frame, when the connecting rod rotates into the limiting groove, the fact that the front canopy cover covers the top of the front roof is in place, and the front end of the front canopy cover is clamped with the windshield cross beam; the rear part of the driver seat is provided with a hook, the inner side of the front canopy cover is provided with a hook groove of the hook at the rear part of the driver seat, and when the front canopy cover is accommodated at the rear part of the driver seat, the hook groove is clamped with the hook at the rear part of the driver seat to fix the front canopy cover;

the rear canopy cover is hinged with the rear vehicle window frame through a hinge, the front end part of the rear canopy cover can be spliced with the front canopy cover, the rear end part of the rear vehicle window frame is hinged with a frame of a vehicle frame at the rear part of the carriage, a bolt is arranged in the rear end part of the rear vehicle window frame, a bolt hole is formed in the outer edge of the rear canopy cover, and when the rear canopy cover and the rear vehicle window frame are folded and stored, the bolt of the rear vehicle window frame can be inserted into the bolt hole of the rear canopy cover; and a connecting piece for fixing the rear canopy is arranged at the position, corresponding to the storage position of the rear canopy, of the rear outer part of the vehicle, and the rear canopy is fixed.

The further technical scheme is as follows: the vehicle doors are respectively positioned at the left side and the right side of the vehicle body and can be opened upwards through the vehicle door opening mechanism; the vehicle door opening mechanism comprises a door handle, a rotating rod and a gas spring; two rods of the door handle are at 90 degrees, one of the two rods is fixedly connected with the side edge of the vehicle door, and the other rod is fixedly connected with the rotating rod; the rotating rod can be rotatably erected on the inner part of the vehicle body shell; one end of the door handle is fixedly connected with the rotating rod, and the other end of the door handle is fixedly connected with the side edge of the vehicle door; the door handle and the rotating rod are in an angle of 90 degrees; the door handle is positioned outside the vehicle body shell and inside the vehicle body shell; one end of the gas spring is fixed in the vehicle body shell, and the other end of the gas spring is fixed on the door handle; a gap for manual rotation of the door is formed in the section of the vehicle body shell close to one side of the vehicle door, and the cross section of the opening of the gap is L-shaped; the rotating rod penetrates through an iron plate and can rotate relative to the iron plate; the iron plate is provided with two wings which are fixed inside the shell of the automobile body through angle irons and are rotationally connected with the angle irons.

The further technical scheme is as follows: the door hand control is provided with a convex block, and a jacking and fixing device for fixing the door hand control to move is arranged in the body shell; the top fixing device is formed by bending one side edge of an iron sheet, a top point slotted hole is formed in the bent position, and an opening formed by the iron sheet positioned on the two sides of the top point slotted hole is a gradually-expanding opening gradually expanding from inside to outside.

The further technical scheme is as follows: the transverse steel plate is in a shoulder pole arc shape, and the middle part of the transverse steel plate is fixed on the chassis; and two ends of the transverse steel plate are fixedly connected with the two fixing shafts respectively.

The further technical scheme is as follows: the transverse steel plate is composed of two straight steel plates, one ends of the two straight steel plates are fixedly connected with the two fixed shafts respectively, and the other ends of the two straight steel plates are fixedly connected with the chassis.

The further technical scheme is as follows: the straight steel plate consists of an upper steel plate, a middle steel plate and a lower steel plate, the upper steel plate is a horizontal plate, the upper steel plate is obliquely connected with the lower steel plate through the middle steel plate, the lower steel plate is a groove steel plate, and gaps for placing the rear axle body are formed in two side walls of the groove steel plate; the upper steel plate is fixed on the chassis, and the rear axle body is placed on the notch of the lower steel plate and welded with the lower steel plate.

Due to the adoption of the technical scheme, the four-wheel electric vehicle has the following beneficial effects:

(1) the front wheel of the four-wheel electric vehicle is fixed by a transverse steel plate and a shock absorption component without a pull rod, and the rear wheel is fixed by a straight steel plate and the shock absorption component, so that the four-wheel electric vehicle has better shock absorption and stability, and the vehicle frame can be made compact and small. The brake system of the four-wheel electric vehicle can brake four wheels simultaneously, and has high safety.

(2) The front canopy cover of the four-wheel electric vehicle can be folded, overturned and stored at the rear part of the driver seat, the influence on the space in the vehicle is small, the rear canopy cover can be folded, overturned and stored at the rear outer part of the vehicle, the space in the vehicle is not influenced, higher objects such as a refrigerator, an air conditioner, a high cabinet and the like can be loaded, and the folding and overturning of the front canopy cover of the four-wheel electric vehicle can not be realized by a common small-sized electric vehicle.

(3) When the vehicle door of the four-wheel electric vehicle is opened, the vehicle door is pushed to the vehicle body by 20-30 mm and then is lifted upwards for opening, so that personnel can get in and out of the vehicle door and park on the roadside, the occupied land is small, the occurrence of door opening collision accidents of the following personnel and vehicles is reduced, and the safety is improved.

The technical features of the four-wheeled electric vehicle according to the present invention will be further described with reference to the accompanying drawings and embodiments.

Drawings

FIG. 1 is a schematic structural view of a four-wheeled electric vehicle according to an embodiment;

FIG. 2-1 is a first schematic structural view of a front wheel device of the four-wheeled electric vehicle according to the embodiment;

FIG. 2-2 is a schematic diagram of a transverse steel plate structure of the four-wheeled electric vehicle according to the embodiment I;

FIG. 2-3 is a schematic structural diagram of a front wheel device of the four-wheeled electric vehicle according to the embodiment II;

FIG. 2-4 is a schematic diagram of a second transverse steel plate structure of the four-wheeled electric vehicle according to the embodiment;

FIG. 2-5 are schematic views of the connection of the threaded telescopic rod of the four-wheeled electric vehicle according to the embodiment;

FIG. 3-1 is a schematic structural view of a rear wheel device of the four-wheeled electric vehicle according to the embodiment;

FIG. 3-2 is a side view of a lower steel plate structure of the four-wheeled electric vehicle of the embodiment;

FIG. 3-3 is a plan view of a lower steel plate structure of the four-wheeled electric vehicle of the embodiment;

FIGS. 3 to 4 are rear views of the lower steel plate structure of the four-wheeled electric vehicle of the embodiment;

FIGS. 3-5 are schematic diagrams of a prior art H-shaped steel frame structure I;

FIGS. 3-6 are schematic diagrams of a prior art H-shaped steel frame structure II;

FIG. 4-1 is a schematic view illustrating a connection principle of a brake system of the four-wheeled electric vehicle according to the embodiment;

FIG. 4-2 is a schematic view of the connection between the accessory shaft and the accessory pin of the four-wheeled electric vehicle according to the embodiment;

4-3 is a schematic view of the connection between the accessory fixing block and the accessory ring and the accessory rotating shaft of the four-wheeled electric vehicle according to the embodiment;

FIG. 5-1 is a first schematic view illustrating a hood of the four-wheeled electric vehicle according to the embodiment in an open state;

FIG. 5-2 is a schematic view showing the hood of the four-wheeled electric vehicle in the second embodiment in an open state;

FIG. 6-1 is a schematic view showing a state in which a door of a four-wheeled electric vehicle according to the embodiment is opened;

FIG. 6-2 is a schematic view showing a door hand and a door hand coupled to a vehicle door of the four-wheeled electric vehicle according to the embodiment;

6-3 are schematic cross-sectional views of the body shell on the side of the embodiment adjacent the door;

FIG. 6-4 is a schematic structural diagram of a fastening device of the four-wheeled electric vehicle according to the embodiment;

6-5 are the first vehicle door mounting structure of the four-wheel electric vehicle of the embodiment;

6-6 is the second door mounting structure of the four-wheel electric vehicle of the embodiment;

FIGS. 6-7 are enlarged views of A in FIGS. 6-6;

6-8 are the door mounting structure of the four-wheeled electric vehicle of the embodiment.

In the figure:

1. a frame; 2. a front wheel; 3. a rear wheel;

4. a hood; 41. a front canopy; 42. a rear canopy; 43. a water drainage through groove; 44. a connecting rod; 45. a limiting groove; 46. a rear window frame; 47. inserting a rod; 48. a jack; 49. a hook groove.

5. A vehicle door; 51. a door handle; 52. the door is manually controlled; 53. rotating the rod; 54. a gas spring; 55. an iron plate; 56. angle iron; 57. a bump; 58. a jacking and fixing device; 581. a vertex slot.

6. A transverse steel plate; 61. a transverse steel plate I; 62. a transverse steel plate II; 63. a steel plate fixing clip; 64. and a steel plate connecting clamp.

7. A suspension assembly;

8. a threaded telescopic rod; 81. a directional ear plate;

9. a steering gear; 10. a fixed shaft; 11. fixedly connecting a disc; 12. a chassis; 13. rotating the sleeve in the direction; 14. a fixed sleeve is arranged; 15. a rear axle body;

16. a straight steel plate; 161. steel plate mounting; 162. a middle steel plate; 163. a lower steel plate; 164. a notch;

17. an H-shaped steel frame; 18. a brake link head; 19. a front wheel brake oil pump; 20. an oil pipe; 21. a rear wheel brake pad; 22. a front wheel brake contact; 23. a foot brake rear wheel lever;

24. a brake cable; 241. a brake cable a; 242. a brake cable b; 243. a brake cable c;

25. an accessory; 251. an accessory a; 252. an accessory b; 253. an accessory shaft; 254. an accessory pin; 255. an accessory fixing block; 256. an attachment ring;

26. a vehicle body housing.

Detailed Description

As shown in fig. 1, a four-wheel electric vehicle comprises a frame 1, two front wheels 2 and two rear wheels 3 correspondingly arranged on the frame, a chassis 12, a hood 4, a door 5 and a brake system.

As shown in fig. 2-1 to 2-5, two front wheels 2 are mounted in front of the frame through a front wheel device, the front wheel device comprises a transverse steel plate 6, a shock-absorbing assembly 7, a threaded telescopic rod 8, a direction rotating sleeve 13, a fixed shaft 10 and a fixed connecting disc 11; shock absorber subassembly 7, screw thread telescopic link 8, direction rotate sleeve 13, fixed axle 10 and fixed even dish 11 and are the symmetry setting, every shock absorber subassembly 7, screw thread telescopic link 8, direction rotate sleeve 13, fixed axle 10 and fixed even dish 11 and correspond a front wheel 2. Each direction rotating sleeve 13 corresponds to one fixed shaft 10, and the direction rotating sleeve 13 is sleeved on the corresponding fixed shaft 10 and can rotate relative to the fixed shaft 10; the top of the direction rotating sleeve 13 is provided with a fixed sleeve 14, and the fixed sleeve 14 is fixedly connected with the fixed shaft 10; a wave ball is arranged between the fixed sleeve 14 and the direction rotating sleeve 13; the direction rotating sleeve 13 is welded with the fixed connecting disc 11; the axle of the front wheel 2 is arranged on the fixed connecting disc 11; one end of the shock absorbing component 7 is fixedly connected with the fixed sleeve 14, and the other end thereof is fixed on the frame 1; the two ends of the threaded telescopic rod 8 are spherical, one end of the threaded telescopic rod 8 is connected with the steering gear 9 through a direction lug plate 81, and the other end of the threaded telescopic rod is connected with the fixed connecting disc 11 through the direction lug plate 81; the transverse steel plate 6 is fixedly connected with the chassis 12 and the two front wheels 2 respectively.

The transverse steel plate is in a shoulder pole arc shape, as shown in fig. 2-2, the middle part of a shoulder pole arc-shaped transverse steel plate I61 is fixed on the chassis 12 through steel plate fixing clips 63, and the transverse steel plate is clamped by the two steel plate fixing clips 63 and fixed on the chassis 12 through bolts, which is shown in fig. 3-1; two ends of the shoulder pole arc-shaped transverse steel plate I61 are fixedly connected with the two fixed shafts 10 through steel plate connecting clamps 64 respectively. The steel plate connecting clamp 64 is fixedly welded with the fixed shaft 10, and the transverse steel plate I61 is in bolt connection with the steel plate connecting clamp 64.

The transverse steel plate is composed of two straight steel plates, as shown in fig. 2-3 and fig. 2-4, one end of the transverse steel plate II 62 of the two straight steel plates is fixedly connected with the two steel plate connecting clamps 64 through bolts, and the other end of the transverse steel plate II is fixedly connected with the chassis 12 through bolts. The steel plate connecting clip 64 is welded and fixed with the fixing shaft 10.

The front wheel of the four-wheel electric vehicle of the embodiment is installed by adopting a transverse steering gear and a short steering rod connecting ball, the motor generally has 1000W to 1200W, and the direct current voltage is about 60V. When the bicycle turns left and right, the fixed connecting disc 11 is pushed to rotate through the threaded telescopic rod 8 so as to change the steering of the front wheel 2, and the fixed connecting disc 11 rotates to drive the direction rotating sleeve 13 to rotate.

As shown in fig. 3-1, two rear wheels 3 are mounted at the rear of the frame 1 by a rear wheel assembly including a rear axle body 15, a straight steel plate 16 and a suspension assembly 7; the two rear wheels 3 are mounted at two ends of the rear axle body 15; one end of the straight steel plate 16 is fixedly connected with the chassis 12, and the other end of the straight steel plate is fixedly connected with the rear axle body 15; each rear wheel 3 is provided with a shock-absorbing component 7 correspondingly, one end of the shock-absorbing component 7 is fixedly connected with the rear axle body 15, and the other end of the shock-absorbing component 7 is fixed on the frame 1. For example: the straight steel plate 16 consists of an upper steel plate 161, a middle steel plate 162 and a lower steel plate 163, the upper steel plate 161 is a horizontal plate, the upper steel plate 161 is obliquely connected with the lower steel plate 163 through the middle steel plate 162, the lower steel plate 163 is a grooved steel plate (see fig. 3-2 to fig. 3-4), and notches 164 for placing the rear axle body are formed in two side walls of the grooved steel plate; the upper steel plate 161 is fixed on the chassis 12 through bolts, and the rear axle body 15 is placed on the notch 164 of the lower steel plate and welded with the lower steel plate 163. Or the upper and middle steel plates among the above-described straight steel plates are replaced with the existing H-shaped steel frames 17 (see fig. 3-5 to 3-6).

The length of the body of the four-wheel electric vehicle can be 1670 millimeters, the width of the body can be 820 millimeters, and the whole vehicle can enter and exit as long as the door is larger than 820 millimeters.

As shown in fig. 4-1, the braking system includes a brake connecting rod head 18, a front wheel brake oil pump 19, an oil pipe 20, a front wheel brake pad and a rear wheel brake pad 21; the front wheel brake oil pump 19 is connected with a front wheel brake pad through an oil pipe 20; the brake connecting rod head 18 is similar to be in a 7 shape and comprises a transverse section and a vertical section, a front wheel brake contact 22 is arranged at the upper end of the vertical section, and a foot brake rear wheel rod 23 is arranged at the lower end of the vertical section; the brake connecting rod head 18 controls a front wheel brake oil pump 19 through a front wheel brake contact 22, and controls the front wheel brake through the front wheel brake oil pump 19; the brake link head 18 controls the rear wheel brake pad 21 through a brake cable 24. The brake cable 24 is mounted on the frame chassis 12 via an attachment 25, and includes a brake cable a241, a brake cable b242, and a brake cable c 243. The attachments include an attachment a251 and an attachment b 252. The accessory a251 and the accessory b252 respectively comprise an accessory rotating shaft 253, an accessory pin 254, an accessory fixing block 255 and an accessory circular ring 256; the accessory fixing block 255 is fixed on the frame chassis 12, the accessory rings 256 are fixed at two ends of the accessory fixing block 255, the accessory rotating shaft 253 penetrates through the two accessory rings 256 and can rotate relative to the accessory rings 256 (see fig. 4-3), and the accessory rotating shaft 253 is fixed with a plurality of accessory pins 254 as required. For example, there are 3 accessory pins 254 of accessory b252 (see fig. 4-2). The accessory 25 is rotatably mounted on the chassis; one end of the brake cable a241 is fixedly connected with the transverse section of the brake connecting rod head 18, and the other end of the brake cable a241 is fixedly connected with the accessory pin of the accessory a; one end of the brake cable b242 is fixedly connected with the accessory pin of the accessory a, and the other end of the brake cable b is fixedly connected with the middle accessory pin of the accessory b; and two brake cables c243 are provided, one ends of the two brake cables c243 are respectively fixedly connected with the two remaining accessory pins of the accessory b, and the other ends of the two brake cables c243 are respectively connected with the two rear wheel brake pads. When the brake is stepped on, the foot brake rear wheel rod 18 moves forward, the front wheel brake contact 22 compresses the front wheel brake oil pump 19, and the front wheel brake oil pump 19 conveys oil to the front wheel brake pad through the oil pipe 20 for braking. Meanwhile, the transverse section of the brake connecting rod head 19 is lifted upwards to pull the brake cable a241, the brake cable a241 drives the accessory a251 to rotate, so that the brake cable b242 pulls the accessory b252 to rotate, the accessory b252 rotates to pull the brake cable c243, and the brake cable c243 brakes the rear wheel brake pad 21. The brake system of the four-wheel electric vehicle can brake four wheels simultaneously, and has high safety.

As shown in fig. 1, 5-1 and 5-2, the top of the four-wheeled electric vehicle is covered with a hood 4. The hood comprises a front hood cover 41 and a rear hood cover 42, the front hood cover 41 and the rear hood cover 42 are spliced with each other, a drainage through groove 43 is formed in the position where the front hood cover 41 is spliced with each other, and a connecting piece for connecting the front hood cover is arranged on the rear hood cover 42 corresponding to the splicing position; the connecting piece can be a clamping component or a bolt connecting component. The front canopy 41 is foldable and foldable to be housed in the rear of the driver seat, and the rear canopy 42 is foldable and foldable to be housed in the rear exterior of the vehicle.

The front end of the front canopy cover 41 can be clamped with a windshield cross beam, the rear end of the front canopy cover 41 is hinged with a connecting rod 44, the connecting rod 44 is hinged and installed on a frame of a frame, a limiting groove 45 for limiting the rotation of the connecting rod is arranged on the frame, when the connecting rod 44 rotates into the limiting groove 45, the fact that the front canopy cover 41 covers the front roof is in place is indicated, the front end of the front canopy cover 41 is clamped with the windshield cross beam, for example, a clamping head is arranged at the front end of the front canopy cover 41, and a clamping ring for clamping the clamping head is arranged at the position, corresponding to the clamping position, of the windshield cross beam; the rear part of the driver seat is provided with a hook, the inner side of the front canopy cover is provided with a hook groove 49 of the hook at the rear part of the driver seat, and when the front canopy cover is accommodated at the rear part of the driver seat, the hook groove 49 is clamped with the hook at the rear part of the driver seat to fix the front canopy cover. In order to better fix the front canopy behind the seat and avoid the front canopy from swinging left and right, a sliding rail for moving the front canopy is further arranged on the frame of the frame, and the front canopy can slide in the sliding rail.

The rear canopy cover 42 is hinged to the rear window frame 46 through hinges, the front end portion of the rear canopy cover 42 can be spliced with the front canopy cover, the rear end portion of the rear window frame 46 is hinged to a frame of a rear vehicle frame of a carriage, a bolt is arranged inside the rear end portion of the rear window frame 46, a bolt hole is formed in the outer edge of the rear canopy cover, and when the rear canopy cover and the rear window frame are folded and stored, the bolt of the rear window frame can be inserted into the bolt hole of the rear canopy cover to fix the rear canopy cover 42 and the rear window frame 46. And a connecting piece for fixing the rear canopy is arranged at the position, corresponding to the storage position of the rear canopy, of the rear outer part of the vehicle, and the rear canopy is fixed. For example, the connecting member may be a snap member, and the rear canopy cover 42 is provided at its rear end with a rod 47, and the rear frame of the vehicle compartment is provided with a socket 48 corresponding to the rod.

As shown in fig. 6-1 to 6-6, the doors are respectively located on the left and right sides of the vehicle body, and the door 5 is openable upward by a door opening mechanism; the vehicle door opening mechanism comprises a door hand 51, a door hand 52, a rotating rod 53 and a gas spring 54; two rods of the door hand control 52 are at 90 degrees, one of the two rods is fixedly connected with the side edge of the vehicle door through a bolt, and the other rod is fixedly connected with the rotating rod 53; the rotating rod 53 can be rotatably erected inside the vehicle body shell; one end of the door handle 51 is fixedly connected with the rotating rod 53, and the other end of the door handle is fixedly connected with the side edge of the vehicle door; the door handle 51 and the rotating rod 53 form an angle of 90 degrees; the door handle 51 is positioned outside the vehicle body shell, and the door handle 52 is positioned inside the vehicle body shell; the gas spring 54 is fixed at one end to the interior of the body shell and at the other end to the door handle 52. In order to prevent the vehicle door from shaking when the vehicle door is pushed outwards, the rotating rod 53 penetrates through an iron plate 55, a clamping spring is arranged at the sleeving part of the rotating rod 53 and the iron plate 55, and the rotating rod 53 can rotate relative to the iron plate 55 and cannot axially move relative to the iron plate 55; the iron plate 55 is provided with two wings which are arranged inside the shell of the vehicle body through angle irons 56, and the two wings are arranged inside through holes formed in the angle irons. A gap for manual rotation of the door is formed in the section of the vehicle body shell 26 close to one side of the vehicle door, and the cross section of the opening of the gap is L-shaped (see figures 6-3); a slot which is extended out of the vehicle body when the door is manually controlled to rotate upwards is reserved transversely above the gap of the vehicle body shell. In order to prevent the vehicle door from swaying randomly in a closed state, a lug 57 is arranged on the door hand control 52, and a jacking and fixing device 58 for fixing the manual movement of the door is arranged in the vehicle body shell 26; the top fixing device 58 is formed by bending one side of an iron sheet, a vertex slotted hole 581 is formed at the bending position, and the openings formed by the iron sheets positioned at the two sides of the vertex slotted hole are gradually-expanded openings gradually expanded from inside to outside, so that the convex block 57 can conveniently slide out.

When the vehicle door is opened, the vehicle door is firstly pushed to the outside of the vehicle by 20-30 mm, at this time, the lug 57 slides out of the top fixing device 58, and the vehicle door 5 is lifted upwards to the outside of the vehicle door opening under the action of the gas spring 54 and the assistance of people. Personnel can get in and out of the vehicle door and park at the roadside, the occupied land is small, the occurrence of collision accidents of people and vehicles at the back when the vehicle is opened is reduced, and the safety is improved. When the door is closed, the door 5 moves downward out of the door opening under the action of the gas spring 54 and the assistance of a person, and then the door is pushed to close the inside of the vehicle.

The parts not involved in the present invention are the same as or can be implemented using the prior art. While the utility model has been described in detail with reference to specific preferred embodiments thereof, it will be understood by those skilled in the art that the present invention is not limited to the details of the foregoing embodiments, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (10)

1. A four-wheel electric vehicle comprises a frame, two front wheels and two rear wheels which are correspondingly arranged on the frame, a chassis, a hood and a vehicle door; the method is characterized in that: the two front wheels are arranged in front of the frame through a front wheel device, and the front wheel device comprises a transverse steel plate, a shock absorption assembly, a threaded telescopic rod, a direction rotating sleeve, a fixed shaft and a fixed connecting disc; the shock absorption assembly, the threaded telescopic rod, the direction rotating sleeve, the fixed shaft and the fixed connecting disc are symmetrically arranged, and each shock absorption assembly, the threaded telescopic rod, the direction rotating sleeve, the fixed shaft and the fixed connecting disc correspond to one front wheel; each direction rotating sleeve corresponds to one fixed shaft, and the direction rotating sleeves are sleeved on the corresponding fixed shafts and can rotate relative to the fixed shafts; the top of the direction rotating sleeve is provided with a fixed sleeve which is fixedly connected with a fixed shaft; a wave ball is arranged between the fixed sleeve and the direction rotating sleeve; the direction rotating sleeve is welded with the fixed connecting disc; the front wheel axle is arranged on the fixed connecting disc; one end of the shock absorbing component is fixedly connected with the fixed sleeve, and the other end of the shock absorbing component is fixed on the frame; the two ends of the threaded telescopic rod are spherical, one end of the threaded telescopic rod is connected with the steering gear through a direction lug plate, and the other end of the threaded telescopic rod is connected with the fixed connecting disc through the direction lug plate; the transverse steel plate is fixedly connected with the chassis and the two front wheels respectively.

2. A four-wheeled electric vehicle as set forth in claim 1, wherein: the two rear wheels are arranged behind the frame through a rear wheel device, and the rear wheel device comprises a rear axle body, a straight steel plate and a shock absorption assembly; the two rear wheels are arranged at two ends of the rear axle body; one end of the straight steel plate is fixedly connected with the chassis, and the other end of the straight steel plate is fixedly connected with the rear axle body; each rear wheel pair is provided with a shock absorption assembly, one end of the shock absorption assembly is fixedly connected with the rear axle body, and the other end of the shock absorption assembly is fixed on the frame.

3. The four-wheeled electric vehicle according to claim 2, characterized in that: the brake system comprises a brake connecting rod head, a front wheel brake oil pump, an oil pipe, a front wheel brake pad and a rear wheel brake pad; the front wheel brake oil pump is connected with a front wheel brake pad through an oil pipe; the brake connecting rod head is in a 7-shaped shape and comprises a transverse section and a vertical section, a front wheel brake contact is arranged at the upper end of the vertical section, and a foot brake rear wheel rod is arranged at the lower end of the vertical section; the brake connecting rod head controls a front wheel brake oil pump through a front wheel brake contact, and the front wheel brake is controlled through the brake oil pump; the brake connecting rod head controls the rear wheel brake pad through the brake cable.

4. A four-wheel electric vehicle according to claim 1 or 3, characterized in that: the hood comprises a front hood cover and a rear hood cover, the front hood cover and the rear hood cover are spliced with each other, a drainage through groove is formed in the position where the front hood cover is spliced with each other, and a connecting piece connected with the front hood cover is arranged on the position, corresponding to the splicing position, of the rear hood cover; the front canopy cover can be folded and overturned to be accommodated at the rear part of the driver seat, and the rear canopy cover can be folded and overturned to be accommodated at the rear outer part of the vehicle.

5. The four-wheeled electric vehicle as recited in claim 4, wherein: the front end of the front canopy cover can be clamped with the windshield cross beam, the rear end of the front canopy cover is hinged with a connecting rod, the connecting rod is hinged and mounted on a frame of the frame, a limiting groove used for limiting the connecting rod to rotate is arranged on the frame of the frame, when the connecting rod rotates into the limiting groove, the fact that the front canopy cover covers the top of the front roof is in place, and the front end of the front canopy cover is clamped with the windshield cross beam; the rear part of the driver seat is provided with a hook, the inner side of the front canopy cover is provided with a hook groove of the hook at the rear part of the driver seat, and when the front canopy cover is accommodated at the rear part of the driver seat, the hook groove is clamped with the hook at the rear part of the driver seat to fix the front canopy cover;

the rear canopy cover is hinged with the rear car window frame through a hinge, the front end part of the rear canopy cover can be spliced with the front canopy cover, the rear end part of the rear car window frame is hinged with a frame of a car rear frame, a bolt is arranged in the rear end part of the rear car window frame, a bolt hole is formed in the outer edge of the rear canopy cover, and when the rear canopy cover and the rear car window frame are folded and stored, the bolt of the rear car window frame can be inserted into the bolt hole of the rear canopy cover; and a connecting piece for fixing the rear canopy is arranged at the position, corresponding to the storage position of the rear canopy, of the rear outer part of the vehicle, and the rear canopy is fixed.

6. A four-wheel electric vehicle as defined in claim 5, wherein: the vehicle doors are respectively positioned at the left side and the right side of the vehicle body and can be opened upwards through the vehicle door opening mechanism; the vehicle door opening mechanism comprises a door handle, a rotating rod and a gas spring; two rods of the door handle are at 90 degrees, one of the two rods is fixedly connected with the side edge of the vehicle door, and the other rod is fixedly connected with the rotating rod; the rotating rod can be rotatably erected on the inner part of the vehicle body shell; one end of the door handle is fixedly connected with the rotating rod, and the other end of the door handle is fixedly connected with the side edge of the vehicle door; the door handle and the rotating rod are in an angle of 90 degrees; the door handle is positioned outside the vehicle body shell and inside the vehicle body shell; one end of the gas spring is fixed in the vehicle body shell, and the other end of the gas spring is fixed on the door handle; a gap for manual rotation of the door is formed in the section of the vehicle body shell close to one side of the vehicle door, and the cross section of the opening of the gap is L-shaped; the rotating rod penetrates through an iron plate and can rotate relative to the iron plate; the iron plate is provided with two wings which are fixed inside the shell of the automobile body through angle irons and are rotationally connected with the angle irons.

7. The four-wheeled electric vehicle as recited in claim 6, wherein: the door hand control is provided with a convex block, and a jacking and fixing device for fixing the door hand control to move is arranged in the body shell; the top fixing device is formed by bending one side edge of an iron sheet, a top point slotted hole is formed in the bent position, and an opening formed by the iron sheet positioned on the two sides of the top point slotted hole is a gradually-expanding opening gradually expanding from inside to outside.

8. A four-wheeled electric vehicle as set forth in claim 1, wherein: the transverse steel plate is in a shoulder pole arc shape, and the middle part of the transverse steel plate is fixed on the chassis; and two ends of the transverse steel plate are fixedly connected with the two fixing shafts respectively.

9. The four-wheeled electric vehicle according to claim 1, characterized in that: the transverse steel plate is composed of two straight steel plates, one ends of the two straight steel plates are fixedly connected with the two fixed shafts respectively, and the other ends of the two straight steel plates are fixedly connected with the chassis.

10. The four-wheeled electric vehicle according to claim 2, characterized in that: the straight steel plate consists of an upper steel plate, a middle steel plate and a lower steel plate, the upper steel plate is a horizontal plate, the upper steel plate is obliquely connected with the lower steel plate through the middle steel plate, the lower steel plate is a groove steel plate, and gaps for placing the rear axle body are formed in two side walls of the groove steel plate; the upper steel plate is fixed on the chassis, and the rear axle body is placed on the notch of the lower steel plate and welded with the lower steel plate.

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