Electric vehicle frame

Abstract

The utility model discloses an electric vehicle frame which solves the problem that a large connecting structure needs to be arranged on an existing frame to achieve stable connection of a tail frame, the electric vehicle frame structurally comprises a handlebar pipe, a pedal portion, a rear supporting portion and the tail frame, the handlebar pipe is arranged at the front end of the frame, the pedal portion is arranged in the middle of the frame, and the rear supporting portion is arranged on the tail frame. The rear supporting part is used for arranging a seat cushion supporting structure, and the tail frame is located at the tail end of the frame. Two upper longitudinal beams which are arranged in parallel are arranged at the position of the pedal part of the frame, the two upper longitudinal beams extend backwards to form the rear supporting part, and the rear ends of the two upper longitudinal beams are bent upwards. A cross beam is bridged at the upper ends of the two upper longitudinal beams, the tail frame is U-shaped, and the two front ends of the tail frame are fixedly connected to the cross beam; the upper end sides of the two upper longitudinal beams are respectively and fixedly connected with a fixing plate, the fixing plates are located on the lower side of the cross beam, the two inclined struts are arranged corresponding to the positions of the two fixing plates, the lower ends of the inclined struts are connected to the fixing plates, and the upper ends of the inclined struts are connected to the rear end side of the tailstock.

Description

TECHNICAL FIELD

[0001] The utility model relates to an electric vehicle, in particular to a frame of electric vehicle. BACKGROUND

[0002] The structure of the electric vehicle comprises a frame, which is made of iron and provides a strength support basis for the electric vehicle. Some functional units need to be arranged on the electric vehicle to meet the use requirements of carrying people and goods. In order to adapt to the installation of these functional units, the frame also needs to make some structural changes. Therefore, a faucet pipe is arranged at the front end of the frame, a faucet shaft is rotatably arranged in the faucet pipe, a sunken pedal part is arranged at the middle position of the frame, a seat cushion is arranged at the rear side of the pedal part to provide a seat for the driver, therefore, the frame needs to be extended rearward to form a rear support part to arrange a support structure for supporting the seat cushion, and a tail frame is connected to the tail end of the frame to carry people or goods.

[0003] Chinese patent document (authorized announcement number: CN 219927890U) discloses an electric vehicle frame and an electric vehicle with the frame, and relates to the technical field of electric vehicle frames. The existing frame has poor universality, and users need to purchase another electric vehicle to meet the needs of carrying or expanding the accommodation space, which is high in cost and wastes resources. The device comprises a frame body, two damping installation supports, a connecting beam and a rear clothes rack. The two damping installation supports are symmetrically arranged and fixedly installed on two groups of upper pipes of the frame body, and each comprises a first installation structure and a second installation structure. The connecting beam is located between the two damping installation supports and connected with the two damping installation supports. The third installation structure is arranged on the connecting beam. The rear clothes rack comprises a first rear clothes rack or a second rear clothes rack. The first rear clothes rack is connected with the first installation structure and the third installation structure. The second rear clothes rack is connected with the first installation structure and the second installation structure. The utility model can configure the rear clothes rack of the frame according to the use needs, reduce the economic burden of the user and save resources.

[0004] In this electric vehicle frame, the fixation of the tail frame is only through two front ends fixedly connected to a connecting structure, which makes the size of the connecting structure large, and the fixation firmness of the tail frame cannot be guaranteed, which also affects the carrying capacity of the tail frame. UTILITY MODEL CONTENTS

[0005] The utility model needs to solve the technical problem: provide a kind of electric vehicle frame, the fixation firmness of tail frame on the frame is good, so that the carrying capacity of tail frame is high.

[0006] To solve the technical problem, the utility model discloses a technical scheme: a kind of electric vehicle frame, including tap pipe, pedal part, rear support part and tailstock, tap pipe is arranged at the front end of frame, pedal part is arranged in the middle position of frame with the form of subsidence, rear support part is used to set seat cushion support structure, tailstock is located at the tail end of frame;Frame has two parallelly arranged upper longitudinal beams at the position of pedal part, two upper longitudinal beams extend rearward to form the rear support part, the rear end of two upper longitudinal beams is bent upwards, characterized in that, a crossbeam is bridged on the upper end of two upper longitudinal beams, the tailstock is U-shaped, two front ends of tailstock are fixedly connected on crossbeam;A fixed plate is respectively fixedly connected on the upper end side of two upper longitudinal beams, and the fixed plate is located on the lower side of crossbeam, two inclined braces are arranged corresponding to the position of two fixed plates, the lower end of inclined brace is connected on fixed plate, and the upper end of inclined brace is connected on the rear end side of tailstock.

[0007] Two front ends of tailstock can be connected and fixed with crossbeam by welding or bolt connection mode. Rear seat cushion can be provided on tailstock for electric vehicle loading, and tailstock can also be used as load.

[0008] Further, the crossbeam is a plate-shaped body, the outer edge of crossbeam is bent downward, and the outer edge of crossbeam is wrapped on the upper end of two upper longitudinal beams. By bending the outer edge of crossbeam downward, the strength of crossbeam can be improved, and the load-carrying capacity of crossbeam can be ensured. Moreover, the outer edge of crossbeam is bent downward, so that the upper surface of crossbeam is smooth, and the upper end of upper longitudinal beam will not cause great damage to seat cushion.

[0009] Further, a through notch is arranged at the outer edge of each end of crossbeam. By arranging the notch, the bending of the outer edge of crossbeam is facilitated, and the processing and forming of crossbeam are facilitated.

[0010] Further, a crossbar is bridged between two fixed plates, and the two ends of crossbar are respectively welded and fixedly connected on the inner side surface of fixed plate. By arranging the crossbar, the position stability of fixed plate on upper longitudinal beam can be effectively improved, and the position stability of frame in width direction is good in combination with the arrangement of crossbeam.

[0011] Further, a connecting piece is connected at the middle position of inclined brace, and the upper end of connecting piece is welded and fixed on tailstock. By arranging the connecting piece, the integrity of inclined brace and tailstock is good, and strong supporting force can be provided.

[0012] Further, a right connecting frame is connected to one of the upper longitudinal beams, and the two ends of the right connecting frame are fixed to the opposite sides of the curved part of the upper longitudinal beam respectively, and the right connecting frame extends towards the pedal part; a left connecting frame is fixed to the fixed plate of the other upper longitudinal beam, and the left connecting frame extends towards the pedal part. The controller and the electric control switch can be fixed to the left and right connecting frames respectively, so that the space under the seat cushion can be effectively utilized, and the seat bucket with large capacity and large depth can be conveniently arranged under the seat cushion.

[0013] Further, two lower longitudinal beams are arranged at the position of the pedal part in parallel, and the lower longitudinal beams are located under the upper longitudinal beams, and the battery supporting plate is arranged on the lower longitudinal beams. The thickness of the pedal part can be effectively increased by arranging the lower longitudinal beams, so that a relatively large and stable mounting structure can be provided for the battery.

[0014] Further, a plurality of pairs of fixing seats are fixed to the corresponding positions of the two lower longitudinal beams respectively, and a supporting piece is arranged between the two fixing seats of each pair of fixing seats, and the supporting piece is in the shape of a trapezoid, and the battery supporting plate is arranged on the supporting piece. The battery tray can be supported by the supporting piece, and the installation requirement of the vehicle-mounted battery can be met.

[0015] Further, the inner side of the fixing seat is an inclined surface, the upper end of the inclined surface is inclined towards the outer side, and the connecting end of the supporting piece is fixed to the inclined surface. The installation space can be provided on the outer side of the inclined surface by arranging the inclined surface, so that the fixing between the connecting end of the supporting piece and the fixing seat can be realized. In addition, the connecting end of the supporting piece is also arranged in an inclined manner, so that the connection stability between the supporting piece and the fixing seat can be effectively improved.

[0016] Compared with the prior art, the utility model has the beneficial effects that: the two upper ends of the frame are bridged by the cross beam, the upper end of the cross beam is covered, the cross beam can directly support the seat cushion, the sharp periphery of the upper end of the cross beam will not cause great damage to the seat cushion, and the seat cushion is conveniently arranged. The fixed plate is arranged at the corresponding position of the rear end of the frame, the tail frame is separately supported and fixed by the cross beam and the inclined support, the stress of the tail frame can be dispersed, a relatively large connecting piece does not need to be arranged at the rear end of the frame, the support stability of the tail frame is good, the structural strength of the tail frame can be ensured, the carrying capacity of the tail frame is large, and the weight of the tail frame is conveniently borne. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective view of one direction of the electric vehicle frame.

[0018] Figure 2 It is a perspective view of another direction of the electric vehicle frame.

[0019] In the figure, 1, the faucet pipe; 2, the vertical rod; 3, the pedal part; 31, the battery support plate; 32, the support piece; 33, the fixed seat; 4, the upper longitudinal beam; 41, the rear support part; 42, the bending part; 5, the lower longitudinal beam; 6, the connecting piece; 7, the connecting plate; 8, the left connecting frame; 9, the right connecting frame; 10, the fixed plate; 11, the crossbeam; 111, the notch; 12, the bolt; 13, the inclined support; 14, the tail frame; 15, the crossbar. DETAILED DESCRIPTION

[0020] In combination with the drawings of the specification, the electric vehicle frame as the strength basis of the whole electric vehicle, is used to carry the installation of each corresponding functional unit on the electric vehicle. The structure includes the faucet pipe 1, the pedal part 3, the rear support part 41 and the tail frame 14. Among them, the faucet pipe 1 is arranged at the front end of the frame, the pedal part 3 is arranged in the form of sinking at the middle position of the frame, the rear support part 41 is located at the rear side of the pedal part 3, the rear support part 41 is used to set the seat cushion support structure, and the tail frame 14 is located at the tail end of the frame. As shown in the figure, the faucet pipe 1 is arranged obliquely at the front end of the frame, the faucet pipe 1 is used to rotatably connect the faucet shaft; the pedal part 3 is arranged horizontally, which provides a foot support for the driver; the rear support part 41 is used to set the seat cushion support structure at the position, so as to provide support for the seat cushion; the tail frame 14 is arranged at the rear end of the frame, on which the rear seat cushion can be arranged, or a frame structure is formed to bind the load.

[0021] The frame has two upper longitudinal beams 4 arranged side by side at the position of the pedal part 3, the front ends of the two upper longitudinal beams 4 are fixedly connected to the lower end side of a vertical rod 2, and the tap pipe 1 is fixedly connected to the upper end of the vertical rod 2. The two upper longitudinal beams 4 extend rearward to form the rear support part 41, and more specifically, the two upper longitudinal beams 4 extend obliquely upward to form the rear support part 41. Moreover, the rear ends of the two upper longitudinal beams 4 are bent upward at the rear side of the rear support part 41, so that the rear ends of the two upper longitudinal beams 4 form upper ends. A cross beam 11 is bridged to the upper ends of the two upper longitudinal beams 4, and the tail frame 14 is in a U shape, and the two front ends of the tail frame 14 are fixedly connected to the cross beam 11. As shown in the figure, the upper longitudinal beam 4 is a pipe body, a plug is arranged in the upper end of the upper longitudinal beam 4, and the two front ends of the tail frame 14 are threadedly connected to the plug through bolts 12, so as to realize the fixed connection of the cross beam 11 to the upper end of the upper longitudinal beam 4. A fixed plate 10 is fixedly connected to the upper end side of each of the two upper longitudinal beams 4, the fixed plate 10 is arranged vertically, and the fixed plate 10 is generally fixedly connected to the corresponding position of the upper longitudinal beam 4 by welding. A cross rod 15 is bridged between the two fixed plates 10, and the two ends of the cross rod 15 are fixedly connected to the inner side surfaces of the fixed plates 10 by welding. The arrangement of the cross beam 11 and the cross rod 15 can stably maintain the width dimension of the frame at the rear end side. The fixed plate 10 and the cross rod 15 are located below the cross beam 11, two inclined struts 13 are arranged corresponding to the positions of the two fixed plates 10, the inclined strut 13 is in an inverted L shape, the inclined strut 13 is arranged obliquely as a whole, the lower end of the inclined strut 13 is fixedly connected to the fixed plate 10 through the bolt 12, the upper end of the inclined strut 13 is fixedly connected to the middle position of the tail frame 14, and the inclined strut 13 obliquely extends toward the rear end side of the tail frame 14. In order to further improve the integrity of the tail frame 14, a connecting piece 6 is connected to the middle position of the inclined strut 13, the lower end of the connecting piece 6 is fixedly connected to the inclined strut 13 by welding, and the upper end of the connecting piece 6 is fixedly connected to the tail frame 14 by welding.

[0022] The cross beam 11 is a plate body, the outer edge of the cross beam 11 is bent downward, so that the cross beam 11 as a whole is in a cover shape, and the outer edge of the cross beam 11 is wrapped around the upper ends of the two upper longitudinal beams 4. In order to facilitate the downward bending of the outer edge of the cross beam 11, a through notch 111 is arranged at the outer edge of each end of the cross beam 11, and the cross beam 11 is generally integrally formed by stamping. The cross beam 11 is in a "j" shape as a whole, the middle position of the cross beam 11 in the length direction is deformed to protrude upward, and the two front ends of the tail frame 14 are fixedly connected to the opposite sides of the protruding deformation.

[0023] A right connecting frame 9 is connected to one of the upper longitudinal beams 4, and the two ends of the right connecting frame 9 are fixed to the opposite sides of the curved portion 42 of the upper longitudinal beam 4, respectively, and the right connecting frame 9 extends toward the pedal portion 3. A left connecting frame 8 is fixed to the fixing plate 10 of the other upper longitudinal beam 4, and the left connecting frame 8 extends toward the pedal portion 3. Thus, the space on the opposite sides of the seat tub can be effectively utilized to install the corresponding functional units. As shown in the figure, the right connecting frame 9 is a plate-shaped body, and the right connecting frame 9 is bent to form a Z-shaped structure in cross section, and the right connecting frame 9 can be used to fix the controller of the electric vehicle. The left connecting frame 8 is also a plate-shaped body, and the rear end of the left connecting frame 8 is fixed to the corresponding fixing plate 10, and the left connecting frame 8 can be used to fix the electric control switch of the electric vehicle.

[0024] Two lower longitudinal beams 5 are arranged side by side at the position of the pedal portion 3, and one of the lower longitudinal beams 5 is located directly below one of the upper longitudinal beams 4. The front ends of the two lower longitudinal beams 5 are welded and fixed to the opposite sides of the lower end of the above-mentioned vertical rod 2, and the upper longitudinal beam 4 and the lower longitudinal beam 5 on the same side are connected together through a plurality of connecting plates 6 arranged at intervals, the upper end of the connecting plate 6 is welded and fixed to the upper longitudinal beam 4, and the lower end of the connecting plate 6 is welded and fixed to the lower longitudinal beam 5. The connecting plate 7 is welded and fixed to the upper longitudinal beam 4, the connecting plate 7 is arranged vertically, the connecting plate 7 is located at the lower end of the rear support portion 41, and the rear end of the lower longitudinal beam 5 is welded and fixed to the connecting plate 7.

[0025] The battery support plate 31 is carried on the lower longitudinal beam 5, and the vehicle-mounted battery is installed at the position of the pedal portion 3, and the battery support plate 31 is used to support the vehicle-mounted battery. The battery support plate 31 can be carried on the two lower longitudinal beams 5, in order to form a relatively large depth at the position of the pedal portion 3 to meet the installation size requirements of the vehicle-mounted battery, so that the battery support plate 31 is supported on a plurality of supporting plates 32, the supporting plate 32 is in the shape of a n, and the lower end of the supporting plate 32 extends toward the lower side of the lower longitudinal beam 5. A plurality of pairs of fixing seats 33 are respectively welded and fixed at the corresponding positions of the two lower longitudinal beams 5, and a supporting plate 32 is bridged between a pair of fixing seats 33. The battery support plate 31 is a rectangular plate of an integral type, the periphery of the battery support plate 31 is bent upward so that the battery support plate 31 is a box-shaped body with an opening, and the battery support plate 31 is fitted and supported on the upper bottom surface of the supporting plate 32. The inner side of the fixing seat 33 is a slope, the upper end of the slope inclines toward the outer side, the connecting end of the supporting plate 32 has a deformation adapted to the slope, and the connecting end of the supporting plate 32 is fitted and fixed to the slope through the bolt 12.

Claims

1. An electric vehicle frame comprising a head tube, a pedal section, a rear support section and a tail frame, the head tube being arranged at a front end of the frame, the pedal section being arranged in a sunken form at a middle position of the frame, the rear support section being arranged for a seat cushion support structure, and the tail frame being arranged at a tail end of the frame; the frame having two upper longitudinal beams arranged side by side at the position of the pedal section, the two upper longitudinal beams extending rearward to form the rear support section, and the rear ends of the two upper longitudinal beams being bent upward, characterized in that, The upper ends of the two upper longitudinal beams are bridged by a cross beam, the tail frame is U-shaped, and the two front ends of the tail frame are fixedly connected to the cross beam; a fixed plate is fixedly connected to the side of the upper end of each of the two upper longitudinal beams, the fixed plate is located below the cross beam, the two inclined supports are arranged corresponding to the positions of the two fixed plates, the lower end of the inclined support is connected to the fixed plate, and the upper end of the inclined support is connected to the rear end side of the tail frame.

2. The electric vehicle frame of claim 1, wherein, The cross beam is a plate-shaped body, the outer edge of the cross beam is bent downward, and the outer edge of the cross beam is wrapped around the upper ends of the two upper longitudinal beams.

3. The electric vehicle frame of claim 2, wherein, A through gap is arranged at the outer edge of each end of the cross beam.

4. The electric vehicle frame of claim 1, wherein, A cross rod is bridged between the two fixed plates, and the two ends of the cross rod are respectively welded and fixedly connected to the inner side surfaces of the fixed plates.

5. The electric vehicle frame of any one of claims 1 to 4, wherein, A connecting plate is connected to the middle part of the inclined support, and the upper end of the connecting plate is welded and fixed to the tail frame.

6. The electric vehicle frame of any one of claims 1 to 4, wherein, A right connecting frame is connected to one of the upper longitudinal beams, the two ends of the right connecting frame are respectively fixedly connected to the opposite sides of the curved part of the upper longitudinal beam, and the right connecting frame extends towards the pedal part; a left connecting frame is fixedly connected to the fixed plate of the other upper longitudinal beam, and the left connecting frame extends towards the pedal part.

7. The electric vehicle frame of any one of claims 1 to 4, wherein, Two lower longitudinal beams are arranged side by side at the position of the pedal part, the lower longitudinal beams are located below the upper longitudinal beams, and a battery supporting plate is carried on the lower longitudinal beams.

8. The electric vehicle frame of claim 7, wherein, A plurality of pairs of fixed seats are respectively welded and fixed at the corresponding positions of the two lower longitudinal beams, a supporting plate is bridged between a pair of fixed seats, the supporting plate is in the shape of a n, and the battery supporting plate is supported on the supporting plate.

9. The electric vehicle frame of claim 8, wherein, The inner side surface of the fixed seat is an inclined surface, the upper end of the inclined surface is inclined towards the outer side, and the connecting end of the supporting plate is fixedly connected to the inclined surface. The inner side surface of the fixed seat is an inclined surface, the upper end of the inclined surface is inclined towards the outer side, and the connecting end of the supporting plate is fixedly connected to the inclined surface.

Images