Frame of bestriding type electric vehicle

Abstract

The utility model discloses a bestriding type electric vehicle frame which is of a frame type structure and comprises a handlebar pipe, a rear bottom fork and a bottom supporting beam, the front end of the bottom supporting beam is fixedly connected to the handlebar pipe, and the rear bottom fork is movably connected to the rear end side of the bottom supporting beam. The bottom supporting beam is bent towards the lower side, and a straight-rod-shaped horizontally-arranged mounting part is formed at the bottom end of the bottom supporting beam; a 7-shaped top supporting beam is arranged between the bibcock pipe and the rear bottom fork, the top supporting beam is located on the upper side of the bottom supporting beam, the top supporting beam is provided with a straight rod part and a downward extending part, the straight rod part and the mounting part are arranged in parallel, the front end of the straight rod part is fixedly connected with the bibcock pipe, the downward extending part extends out towards the lower side, and the rear end of the mounting part is fixedly connected with the lower end side of the downward extending part; and a mounting cavity for mounting an electric bottle is arranged between the top supporting beam and the bottom supporting beam.

Description

TECHNICAL FIELD

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

[0002] The straddle type vehicle is relative to the pedal type vehicle, and a rider rides the electric vehicle in a straddle manner during use. In order to support the feet of the rider, a rod-shaped or block-shaped footrest is arranged on the opposite sides in the width direction of the straddle type vehicle, and a plate-shaped footrest is arranged at the middle position of the frame of the pedal type vehicle. The straddle type vehicle is generally used as a functional vehicle, and has the requirements of high speed and high horsepower. The straddle type vehicle is usually powered by an internal combustion engine, and the straddle type vehicle powered by electricity is not common.

[0003] Chinese patent document (announcement number: CN 210822590U) discloses a straddle type electric vehicle beam frame, which comprises a front vertical pipe, left and right upper main frame pipes, a front main frame pipe, left and right rear main frame pipes, and left and right front frame vertical pipes. The left and right upper main frame pipes extend rearward from the front vertical pipe. The front main frame pipe extends downward from the front vertical pipe. The front ends of the left and right rear main frame pipes are fixedly connected to the left and right sides of the lower ends of the front main frame pipe, respectively. The rear ends of the left and right rear main frame pipes are fixedly connected to the rear parts of the left and right upper main frame pipes, respectively. The left and right front frame vertical pipes are located rearward of the front vertical pipe, and the lower ends of the left and right front frame vertical pipes are fixedly connected to the left and right sides of the upper parts of the front main frame pipe, respectively. The upper ends of the left and right front frame vertical pipes are fixedly connected to the front parts of the left and right upper main frame pipes, respectively. The straddle type electric vehicle beam frame provided by the utility model has high frame strength, is stable and reliable, and has a light weight.

[0004] The frame is applied to the straddle type electric vehicle, and a relatively large space is formed at the rear side of the frame head pipe to load a large battery. However, the overall arrangement of the frame is not reasonable, and the frame cannot provide good support for the battery. The overall strength of the frame is not high. UTILITY MODEL CONTENTS

[0005] The utility model needs to solve the technical problem: provide a kind of straddle type electric vehicle frame, the frame can also provide stable support for battery on the basis of guaranteeing enough strength, adapt to the installation and disassembly of overall type battery.

[0006] To solve the technical problem, the utility model discloses a technical scheme: a straddle type electric vehicle frame, which is of a frame structure and comprises a head pipe, a rear fork and a bottom support beam, the front end of the bottom support beam is fixedly connected to the head pipe, the rear fork is movably connected to the rear end side of the bottom support beam, characterized in that the bottom support beam is curved toward the lower side, and a mounting portion in the shape of a straight rod and horizontally arranged is formed at the bottom end of the bottom support beam; a top support beam in the shape of "7" is arranged between the head pipe and the rear fork, the top support beam is located on the upper side of the bottom support beam, the top support beam has a straight rod portion and an extension portion, the straight rod portion is arranged side by side with the mounting portion, the front end of the straight rod portion is fixedly connected to the head pipe, the extension portion extends toward the lower side, and the rear end of the mounting portion is fixedly connected to the lower end side of the extension portion; and a mounting cavity for mounting and fixing an integrated storage battery is arranged between the top support beam and the bottom support beam.

[0007] The large storage battery is relative to the on-board storage battery of a scooter, and has a larger volume and capacity to provide sufficient power for the vehicle. Moreover, the storage battery is made into an integrated structure to be integrally mounted into the mounting cavity or replaced from the mounting cavity. After the storage battery is mounted into the mounting cavity, the support portion on the bottom support beam generally provides the main load-bearing support for the storage battery.

[0008] Further, a support rail is arranged on the bottom surface of the mounting cavity, the support rail is arranged along the width direction of the electric vehicle, and the support rail supports the rollers arranged on the bottom of the storage battery in the mounting cavity. The bottom of the mounting cavity is formed by the arrangement of the support rail, and the arrangement of the rollers and the support rail facilitates the mounting of the large-weight storage battery, and makes the mounting and dismounting of the storage battery convenient and facilitates the mounting of the storage battery in place.

[0009] Further, the end of the support rail away from the mounting opening is fixedly connected to an upwardly extending baffle, and a resilient anti-collision protrusion is arranged on the side surface of the baffle facing the mounting opening. The arrangement of the baffle can limit the mounting of the storage battery, so that the storage battery can be safely mounted in place.

[0010] Further, a guide wheel is protrusively arranged on the bottom support beam, the guide wheel is horizontally arranged, the guide wheel extends into the mounting cavity at the side surface of the mounting cavity, and the guide wheel is used to rollingly contact the side surface of the storage battery in the mounting cavity. The arrangement of the guide wheel can further improve the convenience of the mounting of the storage battery, and can well adapt to the mounting of the large-volume and large-weight integrated storage battery.

[0011] Further, the two bottom support beams are arranged side by side, and an L-shaped support part is formed on the bottom support beams, the mounting part being a part of the support part; the top support beam is one, and the top support beam is located between the two bottom support beams, and two approximately [shaped support rods are respectively fixed on the opposite sides of the straight rod part of the top support beam, and a vertical rod is respectively fixed between the rear ends of the two support rods and the rear ends of the mounting parts of the two bottom support beams, the vertical rod being vertically arranged, and the support part, the support rod and the vertical rod form an approximately four-prism-shaped mounting cavity. Through the arrangement of the support rod and the vertical rod, and the two bottom support beams, it is convenient to form a structurally complete mounting cavity on the frame, and the overall battery can be accommodated. The arrangement of the vertical rod also adapts to the spatial position of the bottom support beam and the arrangement of the support rod. Through the arrangement of the top support beam, the overall strength of the frame is ensured, and the overall weight of the frame is also effectively reduced.

[0012] Further, the two bottom support beams are arranged side by side, and an L-shaped support part is formed on the bottom support beams, the mounting part being a part of the support part; the top support beam is one, and the top support beam is located between the two bottom support beams, and two approximately [shaped support rods are respectively fixed on the opposite sides of the straight rod part of the top support beam, and a vertical rod is respectively fixed between the rear ends of the two support rods and the rear ends of the mounting parts of the two bottom support beams, the vertical rod being vertically arranged, and the support part, the support rod and the vertical rod form an approximately four-prism-shaped mounting cavity. Through the arrangement of the support rod and the vertical rod, and the two bottom support beams, it is convenient to form a structurally complete mounting cavity on the frame, and the overall battery can be accommodated. The arrangement of the vertical rod also adapts to the spatial position of the bottom support beam and the arrangement of the support rod. Through the arrangement of the top support beam, the overall strength of the frame is ensured, and the overall weight of the frame is also effectively reduced.

[0013] Further, the front end of the support frame is fixed on the straight rod part of the top support beam, and the rear end of the support frame extends into the upper side of the rear fork, and the rear fork and the support frame are connected by a shock absorber. Through the arrangement of the support frame, it is convenient to arrange a seat cushion on the frame for the rider to sit on, and the position of the seat cushion is stable.

[0014] Further, the front end of the support frame is fixed on the straight rod part of the top support beam, and the rear end of the support frame extends into the upper side of the rear fork, and the rear fork and the support frame are connected by a shock absorber. Through the arrangement of the support frame, it is convenient to arrange a seat cushion on the frame for the rider to sit on, and the position of the seat cushion is stable.

[0015] Further, an [shaped mounting bracket is fixed on the outer side of the vertical rod, the outer sides of the corresponding mounting bracket, support rod and support part are flush, a hinge is connected to the mounting bracket at the mounting port, a blocking rod is connected to the hinge, the outer end of the blocking rod is detachably connected to the corresponding support part through a knob, and the blocking rod is used to block the battery in the mounting cavity. Through the arrangement of the mounting bracket, the structure of the mounting cavity is complete, a relatively closed mounting cavity is formed, the side plate of the mounting cavity is arranged, and the battery is well protected.

[0016] Further, an L-shaped supporting plate is fixed on each of the opposite sides of the downward extension, the outer sides of the two supporting plates are spaced apart and correspond to the size of the front end fork of the rear fork, the front end fork of the rear fork is forked on the two supporting plates, and the pivot is penetrated through the front end of the rear fork, the two supporting plates and the downward extension. Through the arrangement of the two supporting plates, a connecting structure corresponding to the size of the front end fork of the rear fork is formed at the position of the downward extension, so that the front end of the rear fork is stably connected.

[0017] Compared with the prior art, the electric vehicle has the beneficial effects that: the installation cavity is formed at the middle position of the frame to install the integral battery, so that the installation stability of the battery is ensured. Through the arrangement of the bottom supporting beam and the top supporting beam, the structure is reasonable, the firm installation structure is formed on the frame, the battery is well protected, a large installation cavity can be arranged, the volume of the battery is large enough, sufficient power can be provided for the riding of the electric vehicle, and the riding characteristics of the straddle type electric vehicle are met. The installation port is arranged on one side of the installation cavity along the width direction of the electric vehicle, the battery enters and exits the installation cavity in the width direction of the electric vehicle, and the installation and disassembly of the integral battery are well adapted. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structure diagram of the straddle type electric vehicle frame.

[0019] Figure 2 is Figure 1 is a structure diagram of the middle part after explosion.

[0020] Figure 3 is Figure 1 is a structure diagram after removing the battery and the tool box.

[0021] Figure 4 is Figure 3 is a structure diagram of the middle part after explosion.

[0022] Figure 5 is a structure diagram of the bottom supporting beam.

[0023] Figure 6 is a structure diagram of the top supporting beam.

[0024] In the figure, 1, the faucet pipe; 2, the blocking rod; 3, the bottom support beam; 31, the support part; 311, the mounting part; 4, the battery; 5, the rear fork; 6, the shock absorber; 7, the coupling plate; 8, the support frame; 9, the inclined rod; 10, the top support beam; 101, the straight rod part; 102, the lower extension part; 11, the tool box; 12, the support plate; 13, the knob; 14, the roller; 15, the support rail; 151, the blocking piece; 152, the anti-collision boss; 16, the mounting frame; 17, the vertical rod; 18, the support rod; 19, the connecting rod; 20, the top rod; 21, the mounting cavity; 22, the guide wheel. DETAILED DESCRIPTION

[0025] In combination with the accompanying drawings, the involved straddle type electric vehicle is generally two-wheel structure, that is, the front and rear wheels of the electric vehicle are single-wheel structure. The frame of the straddle type electric vehicle is frame structure, and the frame has a mounting cavity 21 for mounting the battery 4. Figure 1 、 2 As shown in the figure, the battery 4 is integral structure. The frame is the strength basis of the electric vehicle, and the battery 4 provides power for the riding of the electric vehicle. The frame includes the head pipe 1, the rear fork 5 and the bottom support beam 3. The head pipe 1 is rotatably mounted with a head shaft, and the lower end of the head shaft is rotatably mounted with a front wheel. The front end of the rear fork 5 is movably connected, and the rear end of the rear fork 5 is rotatably connected with a rear wheel. The bottom support beam 3 provides strength support in the front-rear direction of the electric vehicle, and can also provide main weight support for the battery 4. The front end of the bottom support beam 3 is generally welded and fixed on the head pipe 1, and the rear fork 5 is movably connected at the rear end side of the bottom support beam 3.

[0026] The bottom support beam 3 is curved towards the lower side, and can provide a larger space in the height direction of the electric vehicle. A straight rod-shaped mounting portion 311 in a horizontal position is formed at the bottom end of the bottom support beam 3, and the battery 4 is supported on the mounting portion 311. A top support beam 10 in a "7" shape is arranged between the stem pipe 1 and the rear fork 5, and the top support beam 10 is located above the bottom support beam 3. The top support beam 10 has a straight rod portion 101 and a lower extension portion 102 which are integrally connected. The straight rod portion 101 and the lower extension portion 102 are both straight rod-shaped. The straight rod portion 101 is located above the mounting portion 311, and the straight rod portion 101 is arranged side by side with the mounting portion 311. The mounting portion 311 is generally arranged in the horizontal direction, and the straight rod portion 101 is slightly inclined according to the actual arrangement requirement, with the front end of the straight rod portion 101 being higher than the rear end. The front end of the straight rod portion 101 is welded and fixed to the stem pipe 1, and the lower extension portion 102 extends downwards. The lower extension portion 102 extends to the position of the mounting portion 311, and the rear end of the mounting portion 311 is welded and fixed to the lower end side of the lower extension portion 102. The mounting cavity 21 is formed between the top support beam 10 and the bottom support beam 3. Due to the shapes and arrangement positions of the top support beam 10 and the bottom support beam 3, the mounting cavity 21 has a relatively large space between the top support beam 10 and the bottom support beam 3. The size of the mounting cavity 21 in the vertical direction is large, and the size of the mounting cavity 21 in the front-rear direction of the electric vehicle can be satisfied by the length of the straight rod portion 101 and the mounting portion 311 according to the actual requirement.

[0027] A tool box 11 is fixed between the stem pipe 1 and the straight rod portion 101 of the top support beam 10, and the tool box 11 is located above the straight rod portion 101.

[0028] The battery 4 has a whole structure. The battery 4 can be made as a whole, or a plurality of single batteries can be electrically connected by wires and installed in a closed shell, and the wires are electrically connected to the motor of the electric vehicle. In order to accommodate the large size and large weight of the battery 4, one side of the mounting cavity 21 in the width direction of the electric vehicle is formed with a mounting opening for the battery 4 to enter the mounting cavity 21. In general, the mounting opening is arranged on one side of the mounting cavity 21, and the battery 4 enters and exits the mounting cavity 21 in the width direction of the electric vehicle.

[0029] The support rails 15 are provided on the bottom surface of the installation cavity 21, and two support rails 15 are shown in the figure. The support rails 15 are arranged along the width direction of the electric vehicle. The support rails 15 are provided with grooves. The bottom of the battery 4 is provided with a plurality of rollers 14 arranged in two rows. One row of rollers 14 is arranged to directly support the grooves in one support rail 15 for rolling. The rollers 14 are arranged to roll in the length direction of the support rail 15 to realize the entry and exit of the battery 4 into the installation cavity 21. The guide wheels 22 are protrusively arranged on the bottom support beam 3. Specifically, the guide wheels 22 are arranged on the upper side of the installation portion 311 of the bottom support beam 3. The guide wheels 22 are horizontally arranged. The guide wheels 22 extend into the installation cavity 21 at the side of the installation cavity 21. The guide wheels 22 are arranged to roll with the side surface of the battery 4. The guide wheels 22 have the same structure as the rollers 14. In order to facilitate the installation of the battery 4 in the installation cavity 21, the end of the support rail 15 away from the installation opening is fixed with an upwardly protruding baffle 151. The support rail 15 can be a sheet body. The baffle 151 is formed by bending deformation of the corresponding end portion of the support rail 15. The baffle 151 is provided with elastic anti-collision bosses 152 on the side surface thereof facing the installation opening.

[0030] The bottom support beams 3 are arranged in parallel and spaced apart along the width direction of the electric vehicle. The bottom support beams 3 are formed by bending deformation to have L-shaped support portions 31. The installation portion 311 is part of the support portion 31. The top support beam 10 is arranged between the two bottom support beams 3 along the width direction of the electric vehicle. The top support beam 10 and the bottom support beams 3 play a major role in supporting the strength in the front-rear direction of the electric vehicle. The top support beam 10 is provided with two approximately [shaped support rods 18 respectively connected to the opposite sides of the straight rod portion 101. The support rods 18 protrude in the width direction of the electric vehicle. The two support rods 18 and the two bottom support beams 3 are respectively connected to the rear ends of the installation portions 311. A vertical rod 17 is vertically arranged between the rear ends of the two support rods 18 and the installation portions 311 of the two bottom support beams 3. The support portions 31, the support rods 18 and the vertical rod 17 form an approximately quadrangular prism-shaped installation cavity 21. The width dimension of the top support beam 10 is extended by the arrangement of the two support rods 18 and the two vertical rods 17 to provide strength support for the installation cavity 21 in the width direction of the electric vehicle.

[0031] The front ends of the two bottom support beams 3 are connected to the faucet pipe 1. A connecting rod 19 is horizontally arranged between the front upper end sides of the two bottom support beams 3. The two ends of the connecting rod 19 are respectively connected to the two bottom support beams 3 by welding. A top rod 20 is arranged obliquely. The lower end of the top rod 20 is connected to the connecting rod 19 by welding. The upper end of the top rod 20 is connected to the straight rod portion 101 of the top support beam 10 by welding to support the top support beam 10.

[0032] The seat cushion for the rider is arranged on the top of the electric vehicle and is supported by a pair of rod-shaped support frames 9. The two front ends of the support frames 9 are fixed to the opposite sides of the straight rod part 101 of the top support beam 10 by welding. The rear ends of the support frames 9 extend into the upper side of the rear fork 5. The rear end sides of the support frames 9 are fixed to the lower extension part 102 of the top support beam 10 by two inclined rods 9. A connecting plate 7 is fixed between the upper ends of the inclined rods 9 and the support frames 9. The rear fork 5 is connected to the support frames 9 by a shock absorber 6. The upper end of the shock absorber 6 is pivotally connected to the connecting plate 7, and the lower end of the shock absorber 6 is pivotally connected to the rear fork 5. The front end of a support rod 18 is fixed to the connecting rod 19, and the rear end of the support rod 18 is fixed to the support frame 9.

[0033] A mounting frame 16 is fixed to the outer side of the vertical rod 17. The outer sides of the corresponding mounting frame 16, support rod 18 and support part 31 are flush, thereby forming a relatively regular quadrangular prism support frame around the mounting cavity 21. Four side plates are fixed to the four inner sides of the support frame, thereby forming a hollow quadrangular prism mounting cavity 21. A hinge is connected to the mounting frame 16 at the mounting opening. A sheet-shaped long strip-shaped stop rod 2 is connected to the hinge. The outer end of the stop rod 2 is detachably connected to the corresponding support part 31 by a knob 13. The stop rod 2 is used to block and limit the battery 4 in the mounting cavity 21.

[0034] An L-shaped support plate 12 is fixed to each of the opposite sides of the lower extension part 102. The opposite outer sides of the two support plates 12 are spaced apart and correspond to the size of the front fork of the rear fork 5. The front fork of the rear fork 5 is forked to the two support plates 12. A pivot is inserted into the front end of the rear fork 5, the two support plates 12 and the lower extension part 102, thereby movably connecting the front end of the rear fork 5 and the lower extension part 102 of the top support beam 10.

Claims

1. A straddle-type electric bicycle frame, which is a frame structure, includes a handlebar tube, a rear swingarm, and a bottom support beam, wherein the front end of the bottom support beam is fixedly connected to the handlebar tube, and the rear swingarm is movably connected to the rear end of the bottom support beam, characterized in that... The bottom support beam is curved towards the lower side, and a mounting portion in a straight rod shape is formed at the bottom end of the bottom support beam in a horizontal arrangement; a top support beam in a "7" shape is arranged between the faucet pipe and the rear fork, the top support beam is located on the upper side of the bottom support beam, the top support beam has a straight rod portion and an extended portion, the straight rod portion is arranged side by side with the mounting portion, the front end of the straight rod portion is fixedly connected with the faucet pipe, the extended portion extends towards the lower side, the rear end of the mounting portion is fixedly connected with the lower end side of the extended portion; a mounting cavity for mounting and fixing the integral battery is arranged between the top support beam and the bottom support beam, and the mounting cavity is formed with a mounting opening on one side in the width direction of the electric vehicle, so that the battery enters the mounting cavity.

2. The straddle-type electric vehicle frame according to claim 1, characterized by A support rail is arranged on the bottom surface of the mounting cavity, the support rail is arranged in the width direction of the electric vehicle, and the support rail supports the rollers arranged on the bottom of the battery in the mounting cavity.

3. The straddle-type electric vehicle frame according to claim 2, characterized by An upwardly extending baffle is fixedly connected to one end of the support rail away from the mounting opening, and a resilient anti-collision protrusion is arranged on the side surface of the baffle facing the mounting opening.

4. The straddle-type electric vehicle frame according to claim 2, characterized by A guide wheel is protrusively arranged on the bottom support beam, the guide wheel is arranged in a horizontal arrangement, the guide wheel extends into the mounting cavity at the side surface of the mounting cavity, and the guide wheel is used for rolling contact with the side surface of the battery in the mounting cavity.

5. The straddle-type electric vehicle frame according to claim 1, characterized by The bottom support beam is two, the two bottom support beams are arranged side by side, an L-shaped support portion is formed on the bottom support beam, and the mounting portion is part of the support portion; the top support beam is one, the top support beam is located between the two bottom support beams, approximately [shaped support rods are fixedly connected to the opposite sides of the straight rod portion of the top support beam, respectively, a vertical rod is fixedly connected between the rear ends of the two support rods and the rear ends of the mounting portions of the two bottom support beams, respectively, the vertical rod is arranged in a vertical arrangement, and the support portion, the support rod and the vertical rod enclose an approximately four-prism-shaped mounting cavity.

6. The straddle-type electric vehicle frame according to claim 5, characterized by The two bottom support beams are fixedly connected through a horizontally arranged connecting rod between the front upper end sides of the two bottom support beams, a top rod is fixedly connected at the lower end of the connecting rod, and the upper end of the top rod is fixedly connected to the straight rod portion of the top support beam.

7. The straddle-type electric vehicle frame according to claim 6, characterized by The front end of the support rod is fixedly connected to the connecting rod, and the rear end of the support rod is fixedly connected to the support frame.

8. The straddle-type electric vehicle frame according to claim 7, characterized by An [shaped mounting frame is fixedly connected to the outer side surface of the vertical rod, the outer side surfaces of the corresponding mounting frame, support rod and support portion are flush, a loose-leaf is connected to the mounting frame at the mounting opening, a blocking rod is connected to the loose-leaf, the outer end of the blocking rod is detachably connected to the corresponding support portion through a knob, and the blocking rod is used for blocking the battery in the mounting cavity.

9. The straddle-type electric vehicle frame according to claim 5, characterized by An L-shaped support plate is fixedly connected to the opposite sides of the extended portion, respectively, the outer side surfaces of the two support plates are spaced apart and correspond to the size of the front fork opening of the rear fork, the front fork opening of the rear fork is forked on the two support plates, and a pivot is penetrated through the front end of the rear fork, the two support plates and the extended portion.

10. The straddle-type electric vehicle frame according to any one of claims 1 to 9, characterized by ​

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