阅读说明：本技术 一种蓄能节电电动车 (Energy-storage and electricity-saving electric vehicle ) 是由 林永兴 于 2020-06-15 设计创作，主要内容包括：本发明公开了一种蓄能节电电动车,包括机体,所述机体中设有蓄能空间,所述蓄能空间左侧设有变速空间,所述变速空间左侧设有驱动空间,所述驱动空间下侧设有左传动空间,所述左传动空间右侧设有平衡空间,所述平衡空间右侧设有传输空间,所述传输空间上侧设有锁动空间,本发明可以使得电动车在下坡时将多余的势能转换为发条的弹性势能储存起来,从而还能降低下坡时的速度,进而在上坡时将发条储存的弹性势能释放为电动车提供额外的动力,从而为电动车节省了电能,有效的解决了电动车在上坡时的电力不足,且浪费电力的问题,从而提高了电动车的续航能力。(The invention discloses an energy-storage and electricity-saving electric vehicle, which comprises a vehicle body, wherein an energy-storage space is arranged in the vehicle body, a speed change space is arranged on the left side of the energy storage space, a driving space is arranged on the left side of the speed change space, a left transmission space is arranged on the lower side of the driving space, a balance space is arranged on the right side of the left transmission space, a transmission space is arranged on the right side of the balance space, the upper side of the transmission space is provided with the locking space, the invention can convert redundant potential energy into elastic potential energy of the spiral spring to be stored when the electric vehicle runs downhill, thereby reducing the speed when running downhill, and then provide extra power with the elastic potential energy release that the clockwork spring stored when going uphill for the electric motor car to for the electric motor car has saved the electric energy, the effectual electric power that has solved the electric motor car when going uphill is not enough, and the problem of extravagant electric power, thereby improved the duration of electric motor car.)

1. An energy-storage and electricity-saving electric vehicle comprises a machine body, and is characterized in that: the energy storage space is arranged in the machine body, the speed change space is arranged on the left side of the energy storage space, the driving space is arranged on the left side of the speed change space, the left transmission space is arranged on the lower side of the driving space, the balance space is arranged on the right side of the left transmission space, the transmission space is arranged on the upper side of the transmission space, the energy storage space and the lock space are internally provided with an electric vehicle energy storage device, the energy storage device comprises a spring shaft which is rotatably connected and arranged on the rear side wall of the energy storage space, a spring fixing block is fixedly arranged on the upper side surface of the spring shaft, a spring is fixedly arranged on the right side of the spring fixing block, a spring abutting arm is fixedly arranged on the spring, a spring groove with a forward opening is arranged in the energy storage space, the spring is slidably connected with the rear side wall of the spring groove, and can be abutted against a, the energy storage gear is fixedly arranged on the front side of the spring shaft, the front side wall of the energy storage space is rotatably connected with an energy storage articulated shaft, an energy storage articulated arm is fixedly arranged on the energy storage articulated shaft and is slidably connected with the lower side wall of the energy storage space, the energy storage articulated arm extends downwards to penetrate through the lower side wall of the energy storage space to enter the balance space and is slidably connected with the upper side wall of the balance space, energy transmission arms are respectively and fixedly arranged on the upper side and the lower side of the energy storage articulated arm in an up-and-down symmetrical mode by taking the energy storage articulated shaft as a symmetrical center, an energy transmission rotating shaft is respectively and rotatably connected onto each energy transmission arm, an energy transmission gear is respectively and fixedly arranged on each energy transmission rotating shaft, each energy transmission gear can be meshed with the energy storage gear, an energy transmission belt wheel is respectively and fixedly arranged on each energy transmission rotating shaft, support columns are respectively and fixedly arranged on the left side and the right side of the lower side of the balance plate symmetrically, a support baffle is respectively and fixedly arranged on each support column, a support spring is respectively connected between the lower side surface of each support baffle and the lower side wall of the balance space, a balance chute with an upward opening is arranged on the balance plate, a balance block is connected in the balance chute in a sliding manner, a balance spring is connected between the left side surface of the balance block and the left side wall of the balance chute, a locking articulated arm is articulated on the right side of the balance plate and is in sliding connection with the right side wall of the balance space, the locking articulated arm extends rightwards to penetrate through the right side wall of the balance space to enter the locking space and is in sliding connection with the left side wall of the locking space, a locking articulated shaft is rotationally connected with the rear side wall of the locking space, and the, a locking sliding arm is hinged to the right side of the locking articulated arm, a locking sliding sleeve is fixedly arranged on the rear side wall of the locking space, the locking sliding sleeve is slidably connected with the locking sliding arm, a trapezoidal clamping groove with a rightward opening is formed in the upper side of the locking sliding arm, a clamping arm is slidably connected to the left side wall of the locking space, the left side of the clamping arm is slidably connected with the energy storage gear, a clamping block space penetrating up and down is formed in the clamping arm, a trapezoidal clamping block is fixedly arranged on the right side wall of the clamping block space, the trapezoidal clamping block is slidably connected with the trapezoidal clamping groove, a butting plate is fixedly arranged on the right side of the clamping arm, a locking spring is connected between the right side face of the butting plate and the right side wall of the locking space, a power driving device is arranged between the driving space and the left transmission space, and a speed change device for the electric vehicle is arranged, and the transmission space is internally provided with an electric vehicle potential energy transmission device.

2. The energy-storage and electricity-saving electric vehicle as claimed in claim 1, characterized in that: the potential energy transmission device comprises a front wheel shaft rotatably connected and installed on the rear side wall of the transmission space, a front wheel gear is fixedly arranged on the front wheel shaft, the front wheel shaft extends forwards to penetrate through the front side wall of the transmission space and enter the front side face of the machine body and is rotatably connected with the front side face of the machine body, a driving wheel is fixedly arranged on the front wheel shaft, a power-assisted sliding groove with a forward opening is arranged on the rear side wall of the transmission space, a power-assisted shaft is connected in the power-assisted sliding groove in a sliding manner, a lantern ring is rotatably connected on the power-assisted shaft, a power-assisted spring is connected between the lower side of the lantern ring and the lower side wall of the transmission space, a power-assisted gear is fixedly arranged on the front side of the power-assisted shaft and can be meshed with the front wheel gear, a power-assisted belt wheel is fixedly arranged on the power-assisted shaft, sliding connection has the energy storage axle in the energy storage spout, the epaxial energy storage gear that has set firmly of energy storage, the energy storage gear can with front wheel gear engagement, the epaxial energy storage band pulley that has set firmly of energy storage, energy storage band pulley and downside be connected with the energy storage belt between the defeated energy band pulley, work as when energy storage articulated arm up swings, the helping hand axle slides down, thereby makes the helping hand gear with front wheel gear engagement, when energy storage articulated arm down swings, the helping hand axle up slides to tensile helping hand spring makes the energy storage axle down slides, thereby makes the energy storage gear with front wheel gear engagement.

3. The energy-storage and electricity-saving electric vehicle as claimed in claim 1, characterized in that: the driving device comprises a power motor fixedly connected and installed on the right side wall of the driving space, the power motor is in power connection with a power shaft, the left side wall of the driving space is in rotating connection with a cone shaft, the cone shaft and the power shaft are respectively in symmetric center with the center of the driving space, conical driving wheels are fixedly and centrally symmetrically arranged, the right side wall of the driving space is in rotating connection with a speed change screw rod, the speed change screw rod extends rightwards to penetrate through the right side wall of the driving space to enter the speed change space and is in rotating connection with the left side wall of the speed change space, a speed regulation sleeve is in threaded connection with the speed change screw rod, a transmission gear is rotatably connected with the speed regulation sleeve and is meshed with an upper conical driving wheel and a lower conical driving wheel, a power bevel gear is fixedly arranged on the cone shaft, and a penetrating, the through shaft extends downwards to penetrate through the lower side wall of the driving space to enter the left transmission space and is rotatably connected with the upper side wall of the left transmission space, a through bevel gear is fixedly arranged on the upper side of the through shaft and is meshed with the power bevel gear, a left worm is fixedly arranged on the lower side of the through shaft, a turbine shaft is rotatably connected with the rear side wall of the left transmission space, a left turbine is fixedly arranged on the turbine shaft and is meshed with the left worm, the turbine shaft extends forwards to penetrate through the front side wall of the left transmission space to enter the front side face of the machine body and is rotatably connected with the front side face of the machine body, and a driving wheel is fixedly arranged on the turbine shaft.

4. The energy-storage and electricity-saving electric vehicle as claimed in claim 1, characterized in that: the speed change device is installed including articulated the left variable speed power arm of balance plate, variable speed power arm with lateral wall sliding connection on the balance space, variable speed power arm upside articulates there is the variable speed cursor slide, variable speed space rear side wall has set firmly the sliding sleeve, the sliding sleeve with variable speed cursor slide sliding connection, the side has set firmly the roller traveller on the variable speed cursor slide, it is connected with the roller axle to rotate between the lateral wall about the variable speed space, the epaxial roller that has set firmly of roller, the roller with roller traveller sliding connection, the epaxial change gear that has set firmly of roller, change lead screw is last the cone pulley has set firmly in the variable speed space, the cone pulley with change gear meshes.

5. The energy-storage and electricity-saving electric vehicle as claimed in claim 1, characterized in that: the flat steel strip spring steel material with higher silicon content used by the clockwork spring has the characteristics of high strength and good rebound resilience.

Technical Field

The invention relates to the field of novel power-saving equipment, in particular to an energy-storage and power-saving electric vehicle.

Background

The electric vehicle, namely the electric drive vehicle, converts electric energy into mechanical energy to move so as to control the current magnitude to change the speed, so that the electric vehicle of the trolley occupies a small share in the national economy, but the electric vehicle accords with the national definite energy-saving and environment-friendly trend, greatly facilitates short-distance traffic, and plays an important role in the national economy mainly through saving and protecting energy and environment.

The electric vehicle generally has the condition of insufficient electric power endurance, particularly when climbing a slope, the electric power loss is particularly serious, and potential energy is inevitably wasted when descending the slope.

Disclosure of Invention

The invention aims to provide an energy-storage and electricity-saving electric vehicle to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: an energy-storage and electricity-saving electric vehicle comprises a vehicle body, wherein an energy storage space is arranged in the vehicle body, a speed change space is arranged on the left side of the energy storage space, a driving space is arranged on the left side of the speed change space, a left transmission space is arranged on the lower side of the driving space, a balance space is arranged on the right side of the left transmission space, a transmission space is arranged on the right side of the balance space, a locking space is arranged on the upper side of the transmission space, an electric vehicle energy storage device is arranged in the energy storage space, the balance space and the locking space, the energy storage device comprises a spring shaft which is rotatably connected and installed on the rear side wall of the energy storage space, a spring fixing block is fixedly arranged on the upper side surface of the spring shaft, a spring is fixedly arranged on the right side of the spring fixing block, a spring abutting arm is fixedly arranged on the, the clockwork spring abutting arm can abut against one side wall of the clockwork spring groove, an energy storage gear is fixedly arranged on the front side of the clockwork spring shaft, the front side wall of the energy storage space is rotatably connected with an energy storage articulated shaft, an energy storage articulated arm is fixedly arranged on the energy storage articulated shaft and is slidably connected with the lower side wall of the energy storage space, the energy storage articulated arm extends downwards to penetrate through the lower side wall of the energy storage space to enter the balance space and is slidably connected with the upper side wall of the balance space, energy transmission arms are respectively and fixedly arranged on the upper side and the lower side of the energy storage articulated arm respectively in an up-and-down symmetrical mode by taking the energy storage articulated shaft as a symmetrical center, an energy transmission rotating shaft is respectively and rotatably connected onto each energy transmission arm, an energy transmission gear is respectively and fixedly arranged on each energy transmission rotating shaft, each energy transmission gear can, the lower side of the energy storage articulated arm is hinged with a balance plate in the balance space, the left and right symmetry of the lower side of the balance plate is respectively and fixedly provided with support columns, each support column is respectively and fixedly provided with a support baffle, a support spring is respectively connected between the lower side surface of each support baffle and the lower side wall of the balance space, the balance plate is provided with a balance chute with an upward opening, a balance block is connected in the balance chute in a sliding way, a balance spring is connected between the left side surface of the balance block and the left side wall of the balance chute, the right side of the balance plate is hinged with a locking articulated arm, the locking articulated arm is connected with the right side wall of the balance space in a sliding way, the locking articulated arm extends rightwards to penetrate through the right side wall of the balance space to enter the locking space and is connected with the left side wall of the locking space, the locking articulated shaft is fixedly connected with the locking articulated arm, the right side of the locking articulated arm is hinged with a locking sliding arm, the rear side wall of the locking space is fixedly provided with a locking sliding sleeve, the locking sliding sleeve is slidably connected with the locking sliding arm, the upper side of the locking sliding arm is provided with a trapezoidal clamping groove with a right opening, the left side wall of the locking space is slidably connected with a clamping arm, the left side of the clamping arm is slidably connected with the energy storage gear, a vertically penetrating clamping block space is arranged in the clamping arm, the right side wall of the clamping block space is fixedly provided with a trapezoidal clamping block, the trapezoidal clamping block is slidably connected with the trapezoidal clamping groove, the right side of the clamping arm is fixedly provided with a butting plate, a locking spring is connected between the right side surface of the butting plate and the right side wall of the locking space, a power driving device is arranged between the driving space and the left transmission space, and a speed change device for the electric vehicle is arranged between, and the transmission space is internally provided with an electric vehicle potential energy transmission device.

Preferably, the potential energy transmission device comprises a front wheel shaft rotatably connected and installed on the rear side wall of the transmission space, a front wheel gear is fixedly arranged on the front wheel shaft, the front wheel shaft extends forwards to penetrate through the front side wall of the transmission space to enter the front side face of the machine body and is rotatably connected with the front side face of the machine body, a driving wheel is fixedly arranged on the front wheel shaft, a power-assisted sliding groove with a forward opening is formed in the rear side wall of the transmission space, a power-assisted shaft is slidably connected in the power-assisted sliding groove, a lantern ring is rotatably connected on the power-assisted shaft, a power-assisted spring is connected between the lower side of the lantern ring and the lower side wall of the transmission space, a power-assisted gear is fixedly arranged on the front side of the power-assisted shaft and can be meshed with the front wheel gear, a power-assisted belt wheel is fixedly, lateral wall is equipped with the energy storage spout that the opening is forward behind the transmission space, sliding connection has the energy storage axle in the energy storage spout, the epaxial energy storage gear that has set firmly of energy storage, the energy storage gear can with front wheel gear engagement, the epaxial energy storage band pulley that has set firmly of energy storage, energy storage band pulley and downside be connected with the energy storage belt between the energy transmission band pulley, work as when energy storage articulated arm up swings, helping hand axle slides down, thereby makes helping hand gear with front wheel gear engagement, when energy storage articulated arm down swings, helping hand axle up slides to tensile helping hand spring makes the energy storage axle slides down, thereby makes energy storage gear with front wheel gear engagement.

Preferably, the driving device comprises a power motor fixedly connected and installed on the right side wall of the driving space, the power motor is connected with a power shaft in a power mode, the left side wall of the driving space is connected with a cone shaft in a rotating mode, the cone shaft and the power shaft respectively use the center of the driving space as a symmetry center, conical transmission wheels are fixedly and centrally arranged in a symmetrical mode, the right side wall of the driving space is connected with a speed change screw rod in a rotating mode, the speed change screw rod extends rightwards to penetrate through the right side wall of the driving space to enter the speed change space and is connected with the left side wall of the speed change space in a rotating mode, a speed regulation sleeve is connected onto the speed change screw rod in a threaded mode, a transmission gear is connected onto the speed regulation sleeve in a rotating mode and meshed with the upper conical transmission wheel and the lower conical transmission wheel, a, the through shaft extends downwards to penetrate through the lower side wall of the driving space to enter the left transmission space and is rotatably connected with the upper side wall of the left transmission space, a through bevel gear is fixedly arranged on the upper side of the through shaft and is meshed with the power bevel gear, a left worm is fixedly arranged on the lower side of the through shaft, a turbine shaft is rotatably connected with the rear side wall of the left transmission space, a left turbine is fixedly arranged on the turbine shaft and is meshed with the left worm, the turbine shaft extends forwards to penetrate through the front side wall of the left transmission space to enter the front side face of the machine body and is rotatably connected with the front side face of the machine body, and a driving wheel is fixedly arranged on the turbine shaft.

Preferably, the speed change device is installed including articulating the left variable speed power arm of balance plate, variable speed power arm with lateral wall sliding connection on the balance space, variable speed power arm upside articulates there is the variable speed cursor slide, variable speed space rear side wall has set firmly the sliding sleeve, the sliding sleeve with variable speed cursor slide sliding connection, the side has set firmly the roller traveller on the variable speed cursor slide, it is connected with the roller axle to rotate between the lateral wall about the variable speed space, the epaxial roller that has set firmly of roller, the roller with roller traveller sliding connection, the epaxial change gear that has set firmly of roller, on the change screw the cone pulley has set firmly in the variable speed space, the cone pulley with change gear meshes.

Preferably, the flat steel strip spring steel material with high silicon content used by the clockwork spring has the characteristics of high strength and good rebound resilience.

In conclusion, the beneficial effects of the invention are as follows: the invention can convert redundant potential energy into elastic potential energy of the spiral spring to be stored when the electric vehicle runs downhill, thereby reducing the speed when running downhill, releasing the elastic potential energy stored by the spiral spring to provide additional power for the electric vehicle when running uphill, saving electric energy for the electric vehicle, effectively solving the problems of insufficient electric power and electric power waste when the electric vehicle runs uphill and improving the cruising ability of the electric vehicle.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic overall full-section front view structure diagram of an energy-storage and power-saving electric vehicle according to the present invention;

FIG. 2 is a top plan view of the spring of FIG. 1 in accordance with the present invention;

FIG. 3 is an expanded view of the accumulator gear of FIG. 1 according to the present invention;

FIG. 4 is a partial cross-sectional view taken at A-A of FIG. 1 in accordance with the present invention;

FIG. 5 is a partial cross-sectional view taken at B-B of FIG. 4 in accordance with the present invention;

fig. 6 is a front view of the body of fig. 1 according to the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

The invention will now be described in detail with reference to fig. 1-6, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, front and rear directions described below correspond to the front, back, left, right, top and bottom directions of the view direction of fig. 1, fig. 1 is a front view of the apparatus of the present invention, and the directions shown in fig. 1 correspond to the front, back, left, right, top and bottom directions of the apparatus of the present invention.

Referring to fig. 1-6, an embodiment of the present invention is shown: an energy storage and electricity saving electric vehicle comprises a vehicle body 21, an energy storage space 22 is arranged in the vehicle body 21, a speed change space 35 is arranged on the left side of the energy storage space 22, a driving space 51 is arranged on the left side of the speed change space 35, a left transmission space 54 is arranged on the lower side of the driving space 51, a balance space 53 is arranged on the right side of the left transmission space 54, a transmission space 68 is arranged on the right side of the balance space 53, a locking space 81 is arranged on the upper side of the transmission space 68, an electric vehicle energy storage device is arranged in the energy storage space 22, the energy storage device comprises a spring shaft 26 which is rotatably connected and arranged on the rear side wall of the energy storage space 22, a spring fixing block 25 is fixedly arranged on the upper side surface of the spring shaft 26, a spring 24 is fixedly arranged on the right side of the spring fixing block 25, a spring abutting arm 27 is fixedly arranged on the spring 24, a spring, the clockwork spring 24 is slidably connected with the rear side wall of the clockwork spring groove 23, the clockwork spring abutting arm 27 can abut against one side wall of the clockwork spring groove 23, the energy storage gear 28 is fixedly arranged at the front side of the clockwork spring 26, the energy storage articulated shaft 67 is rotatably connected with the front side wall of the energy storage space 22, the energy storage articulated arm 65 is fixedly arranged on the energy storage articulated shaft 67, the energy storage articulated arm 65 is slidably connected with the lower side wall of the energy storage space 22, extends downwards to penetrate through the lower side wall of the energy storage space 22 to enter the balance space 53 and is slidably connected with the upper side wall of the balance space 53, the energy transmission arms 41 are respectively and fixedly arranged on the upper side and the lower side of the energy storage articulated arm 65 in an up-down symmetrical mode by taking the energy storage articulated shaft 67 as a symmetrical center, the energy transmission rotating shaft 30 is respectively and, each energy transmission gear 29 can be meshed with the energy storage gear 28, each energy transmission rotating shaft 30 is fixedly provided with an energy transmission belt wheel 31, the lower side of an energy storage hinged arm 65 is hinged with a balance plate 58 in a balance space 53, the left and right sides of the lower side of the balance plate 58 are symmetrically and respectively fixedly provided with support columns 61, each support column 61 is fixedly provided with a support baffle plate 62, a support spring 63 is connected between the lower side surface of each support baffle plate 62 and the lower side wall of the balance space 53, the balance plate 58 is provided with a balance chute 59 with an upward opening, a balance block 64 is slidably connected in the balance chute 59, a balance spring 60 is connected between the left side surface of the balance block 64 and the left side wall of the balance chute 59, the right side of the balance plate 58 is hinged with a locking hinged arm 66, and the locking hinged arm 66 is slidably connected with the right side wall of the, the locking articulated arm 66 extends rightwards to penetrate through the right side wall of the balance space 53 to enter the locking space 81 and is in sliding connection with the left side wall of the locking space 81, the rear side wall of the locking space 81 is rotationally connected with a locking articulated shaft 80, the locking articulated shaft 80 is fixedly connected with the locking articulated arm 66, the right side of the locking articulated arm 66 is articulated with a locking sliding arm 82, the rear side wall of the locking space 81 is fixedly provided with a locking sliding sleeve 83, the locking sliding sleeve 83 is in sliding connection with the locking sliding arm 82, the upper side of the locking sliding arm 82 is provided with a trapezoid clamping groove 89 with a right opening, the left side wall of the locking space 81 is in sliding connection with a clamping arm 88, the left side of the clamping arm 88 is in sliding connection with the energy storage gear 28, the clamping arm 88 is provided with a space 87 with a clamping block penetrating up and down, the right side wall of the clamping block space 87 is fixedly provided with a trapezoid clamping block 86, and the trapezoid clamping groove 89 is, a butting plate 85 is fixedly arranged on the right side of the clamping arm 88, a locking spring 84 is connected between the right side surface of the butting plate 85 and the right side wall of the locking space 81, a power driving device is arranged between the driving space 51 and the left transmission space 54, an electric vehicle speed changing device is arranged between the balance space 53 and the speed changing space 35, and an electric vehicle potential energy transmission device is arranged in the transmission space 68.

In addition, in one embodiment, the potential energy transmission device includes a front wheel shaft 73 rotatably connected to the rear side wall of the transmission space 68, a front wheel gear 74 is fixedly disposed on the front wheel shaft 73, the front wheel shaft 73 extends forward to penetrate through the front side wall of the transmission space 68 to enter the front side surface of the machine body 21 and is rotatably connected to the front side surface of the machine body 21, a driving wheel 92 is fixedly disposed on the front wheel shaft 73, a boosting chute 90 with a forward opening is disposed on the rear side wall of the transmission space 68, a boosting shaft 72 is slidably connected to the boosting chute 90, a collar 44 is rotatably connected to the boosting shaft 72, a boosting spring 70 is connected between the lower side of the collar 44 and the lower side wall of the transmission space 68, a boosting gear 69 is fixedly disposed on the front side of the boosting shaft 72, the boosting gear 69 can be engaged with the front wheel gear 74, a boosting pulley 71 is fixedly disposed on the, an assisting belt 79 is connected between the assisting belt wheel 71 and the upper energy transmission belt wheel 31, the rear side wall of the transmission space 68 is provided with an energy storage chute 91 with a forward opening, an energy storage shaft 77 is connected in the energy storage chute 91 in a sliding manner, an energy storage gear 75 is fixedly arranged on the energy storage shaft 77, the energy storage gear 75 can be meshed with the front wheel gear 74, an energy storage belt wheel 76 is fixedly arranged on the energy storage shaft 77, an energy storage belt 78 is connected between the energy storage belt wheel 76 and the energy transmission belt wheel 31 on the lower side, when the energy storage articulated arm 65 swings upwards, the assisting shaft 72 slides downwards, so that the boosting gear 69 is engaged with the front wheel gear 74, and when the energy storage articulated arm 65 swings downwards, the boosting shaft 72 slides upwards, thereby stretching the assist spring 70 to slide the energy storage shaft 77 downward, thereby engaging the energy storage gear 75 with the front wheel gear 74.

In addition, in one embodiment, the driving device includes a power motor 42 fixedly connected and installed on the right side wall of the driving space 51, the power motor 42 is connected with a power shaft 43, the left side wall of the driving space 51 is connected with a cone shaft 47 in a rotating manner, the cone shaft 47 and the power shaft 43 respectively use the center of the driving space 51 as a symmetrical center, conical transmission wheels 45 are fixedly arranged in the symmetrical center, the right side wall of the driving space 51 is connected with a speed change screw 37 in a rotating manner, the speed change screw 37 extends rightwards to penetrate through the right side wall of the driving space 51 to enter the speed change space 35 and is connected with the left side wall of the speed change space 35 in a rotating manner, a speed regulation sleeve 93 is connected to the speed change screw 37 in a threaded manner, a transmission gear 46 is rotatably connected to the speed regulation sleeve 93, and the transmission gear 46 is meshed with, a power bevel gear 48 is fixedly arranged on the cone shaft 47, a penetrating shaft 50 is rotatably connected with the lower side wall of the driving space 51, the through shaft 50 extends downward through the lower sidewall of the driving space 51 into the left transmission space 54, and is rotatably connected with the upper side wall of the left transmission space 54, a through bevel gear 49 is fixedly arranged on the upper side of the through shaft 50, the penetrating bevel gear 49 is meshed with the power bevel gear 48, a left worm 55 is fixedly arranged at the lower side of the penetrating shaft 50, a turbine shaft 57 is rotatably connected to the rear side wall of the left transmission space 54, a left turbine 56 is fixedly arranged on the turbine shaft 57, the left worm wheel 56 is meshed with the left worm 55, the turbine shaft 57 extends forwards through the front side wall of the left transmission space 54 into the front side surface of the machine body 21, and is rotatably connected to the front side surface of the machine body 21, and a driving wheel 92 is fixed to each of the turbine shafts 57.

In addition, in one embodiment, the speed changing device includes a speed changing power arm 52 hinged to the left side of the balance plate 58, the speed changing power arm 52 is slidably connected to the upper side wall of the balance space 53, a speed changing sliding arm 39 is hinged to the upper side of the speed changing power arm 52, a sliding sleeve 40 is fixedly arranged on the rear side wall of the speed changing space 35, the sliding sleeve 40 is slidably connected to the speed changing sliding arm 39, a roller sliding column 38 is fixedly arranged on the upper side surface of the speed changing sliding arm 39, a roller shaft 32 is rotatably connected between the left and right side walls of the speed changing space 35, a roller 33 is fixedly arranged on the roller shaft 32, the roller 33 is slidably connected to the roller sliding column 38, a speed changing gear 36 is fixedly arranged on the roller shaft 32, a cone wheel 34 is fixedly arranged on the speed changing screw 37 in the speed changing space 35, and the cone wheel 34 is engaged with the speed changing gear.

In addition, in one embodiment, the spring 24 is made of a flat steel band spring steel material with a high silicon content, and has the characteristics of high strength and good resilience.

In the initial state, the balance weight 64 is located in the middle of the balance plate 58, and the trapezoidal latch 86 is completely located in the trapezoidal latch groove 89.

When the electric vehicle needs to run, the power motor 42 is turned on to drive the power shaft 43 to rotate, thereby driving the lower bevel transmission wheel 45 to rotate, thereby driving the transmission gear 46 to rotate, thereby driving the upper bevel transmission wheel 45 to rotate, thereby driving the cone shaft 47 to rotate, thereby driving the power bevel gear 48 to rotate, thereby driving the through bevel gear 49 to rotate, thereby driving the through shaft 50 to rotate, thereby driving the left worm 55 to rotate, thereby driving the left turbine 56 to rotate, thereby driving the turbine shaft 57 to rotate, thereby driving the left driving wheel 92 to rotate, when the electric vehicle runs down a slope, the balance weight 64 moves to the right, thereby swinging the balance plate 58 to the right, thereby driving the energy storage articulated arm 65 and the locking articulated arm 66 to move downward, thereby driving the two energy transmission arms 41 to move upward, thereby driving the locking sliding arm 82 to move upward, thereby engaging the lower energy transmission gear 29 with the energy storage gear 28, thereby causing the assist spring 70 to stretch, thereby causing the assist shaft 72 to slide upward, thereby driving the assist gear 69 to move upward, thereby causing the energy storage shaft 77 to slide upward, thereby causing the energy storage gear 75 to move upward, thereby causing the energy storage gear 75 to mesh with the front wheel gear 74, thereby driving the chuck arm 88 to move rightward, thereby pressing the lock spring 84, thereby causing the driving wheel 92 on the right side to rotate during a downhill slope, thereby driving the front wheel gear 74 to rotate, thereby driving the energy storage gear 75 to rotate, thereby driving the lower energy transmission pulley 31 to rotate, thereby driving the lower energy transmission shaft 30 to rotate, thereby driving the lower energy transmission gear 29 to rotate, thereby driving the energy storage gear 28 to rotate, thereby causing the spring 24 to contract and store energy, during a downhill slope, since the balance plate 58 swings rightward, thereby causing the speed change power arm 52 to move upward, thereby driving the shifting cursor 39 to move to the right, thereby driving the roller 33 to rotate, thereby driving the roller shaft 32 to rotate, thereby driving the shifting gear 36 to rotate, thereby driving the cone wheel 34 to rotate, thereby driving the shifting screw 37 to rotate, thereby driving the speed adjusting sleeve 93 to move to the left, thereby driving the transmission gear 46 to move to the left, thereby changing the transmission ratio between the upper and lower cone transmission wheels 45, thereby reducing the rotation speed of the upper cone transmission wheel 45, when the electric vehicle ascends an incline, the balance block 64 moves to the left, thereby causing the balance plate 58 to swing to the left, thereby causing the energy storage articulated arm 65 and the locking articulated arm 66 to move upwards, thereby causing the two energy transmission arms 41 and the locking cursor arm 82 to move downwards, thereby causing the upper energy transmission gear 29 and the energy storage gear 28 to mesh, thereby causing the boosting spring 70 to reset, thereby causing the shaft 72 to slide downwards, thereby causing the boosting gear 69 to mesh with the front wheel gear 74, since the locking slide arm 82 slides down, the locking arm 88 moves right, thereby compressing the locking spring 84, so that the energy storage gear 28 can rotate, thereby resetting the spring 24, driving the spring shaft 26 to rotate, driving the energy storage gear 28 to rotate, driving the upper energy transmission gear 29 to rotate, driving the energy transmission shaft 30 and the energy transmission belt pulley 31 to rotate, driving the assisting belt pulley 71 to rotate, driving the assisting shaft 72 to rotate, driving the assisting gear 69 to rotate, driving the front wheel gear 74 to rotate, driving the front wheel shaft 73 to rotate, driving the right driving wheel 92 to rotate, thereby providing additional power to the front wheel of the electric vehicle on an uphill slope, and simultaneously, since the balance plate 58 swings left, driving the speed change power arm 52 to move down, driving the speed change slide arm 39 to move left, driving the roller slide 38 to move left, thereby drive roller 33 and rotate to drive roller axle 32 and rotate, thereby drive change gear 36 and rotate, thereby drive cone pulley 34 and rotate, thereby drive speed change screw 37 and rotate, thereby drive speed governing sleeve 93 and turn right the motion, thereby drive gear 46 and turn right the motion, thereby make the drive ratio between two upper and lower toper drive wheels 45 change, thereby make upside toper drive wheel 45 rotational speed grow, thereby increase power.

The invention has the beneficial effects that: the invention can convert redundant potential energy into elastic potential energy of the spiral spring to be stored when the electric vehicle runs downhill, thereby reducing the speed when running downhill, releasing the elastic potential energy stored by the spiral spring to provide additional power for the electric vehicle when running uphill, saving electric energy for the electric vehicle, effectively solving the problems of insufficient electric power and electric power waste when the electric vehicle runs uphill and improving the cruising ability of the electric vehicle.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.