Anti-falling supporting leg of electric vehicle

Abstract

The utility model discloses an anti-toppling supporting leg of an electric vehicle, which belongs to the technical field of supporting legs of electric vehicles and comprises a mounting seat and a cover plate mounted on the surface of the mounting seat, a driving motor is mounted at the bottom of the cover plate, two positioning blocks are symmetrically fixed on the bottom wall of an inner cavity of the mounting seat, and rotating columns are rotatably connected in the positioning blocks. Fixing sleeves are fixed to the end faces of the two rotating columns, supporting columns are movably connected into the fixing sleeves, supporting blocks are movably connected to the outer portions of the supporting columns, two rolling wheels are rotatably connected into the supporting blocks through rotating shafts, through holes are formed in the tops of the supporting blocks, and fixing pins are movably connected into the through holes in the tops of the supporting blocks. Fixing holes matched with the fixing pins are formed in the tops of the supporting columns. According to the anti-falling supporting leg for the electric vehicle, the electric vehicle can be rapidly and stably supported, the supporting block can be conveniently disassembled and assembled, and the supporting block can be conveniently maintained and replaced in the later period.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric vehicle outriggers, and in particular relates to an anti-falling outrigger for an electric vehicle. Background Art

[0002] Electric vehicles, that is, electric-driven vehicles, are also called electric-driven vehicles. Electric vehicles are divided into AC electric vehicles and DC electric vehicles. Generally speaking, electric vehicles are vehicles that use batteries as energy sources and convert electrical energy into mechanical energy through controllers, motors and other components to control the current size to change the speed.

[0003] When parking an electric vehicle, auxiliary legs are needed to prevent the electric vehicle from tipping over. Existing legs can prevent the electric vehicle from tipping over, but when using them, the rear of the electric vehicle needs to be lifted before the legs can be put down. This operation is time-consuming and labor-intensive and inconvenient to use. Therefore, some electric legs are available, which can lift the rear of the electric vehicle with more effort, but the structure of the electric legs is too simple, and most of them are rectangular structures. When the motor drives the legs to rotate and contact the ground, the edges of the rectangular legs contact the ground first, and then the faces of the rectangular legs contact the ground. When the legs are supporting, there is a certain time difference in the transition between the edges and the faces, and the transition is not smooth enough. When the contacting ground is not flat enough, the electric vehicle may be unstable when parked, or even tip over.

[0004] Reference to the Chinese authorized patent with authorization announcement number: CN213502655U: A kind of auxiliary outrigger for new energy electric vehicles. This utility model can drive the shaft rod to rotate through the linkage of the motor and the belt, thereby driving the support plate to rotate downward to achieve the effect of supporting the electric vehicle. Through the cooperation between the rotating plate, the support seat and the support plate, the electric vehicle can be effectively prevented from tipping over. The long plate is driven downward by the hydraulic telescopic rod to lift the vehicle body, avoiding manual lifting, saving time and effort. However, due to the overly simple structure of the support plate, when the electric vehicle is parked on an uneven road, the above-mentioned electric vehicle may not be stable enough when parked, or even tip over. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-falling support leg for an electric vehicle, so as to solve the problem that the structure of the support plate proposed in the above-mentioned background technology is too simple, and when the electric vehicle is parked on an uneven road surface, the electric vehicle may not be stable enough when parked, or even fall over.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-falling leg of an electric vehicle, comprising a mounting seat and a cover plate mounted on the surface of the mounting seat, a driving motor is mounted on the bottom of the cover plate, two positioning blocks are symmetrically fixed to the bottom wall of the inner cavity of the mounting seat, and a rotating column is rotatably connected in the positioning block, and the end surfaces of the two rotating columns are fixed with a fixing sleeve, a support column is movably connected in the fixing sleeve, and a support block for supporting the electric vehicle is movably connected on the outside of the support column;

[0007] An outer wall on one side of the support block is provided with an arc surface, and an outer wall on one side of the support block is provided with an installation groove, in which two rollers are rotatably connected via a rotating shaft, a through hole is provided on the top of the support block, a fixing pin is movably connected in the through hole on the top of the support block, and a fixing hole matching the fixing pin is provided on the top of the support column.

[0008] In a further embodiment, a limiting ring is fixed to the outer wall of the fixing pin, and a fixing spring for supporting the limiting ring is sleeved on the outside of the fixing pin.

[0009] In a further embodiment, a hydraulic cylinder is installed in the fixing sleeve, and a limiting block fixedly connected to the supporting column is fixed to the output end of the hydraulic cylinder.

[0010] In a further embodiment, a driving gear is fixed to the outer wall of the output shaft of the driving motor, and a driven gear meshing with the driving gear is fixed to the outer wall of the rotating column.

[0011] In a further embodiment, limiting rods are fixed to the outer walls on both sides of the support column, and two limiting grooves matching the limiting rods are symmetrically provided in the support block.

[0012] In a further embodiment, two connection blocks connected to the electric vehicle are symmetrically fixed on the surface of the cover plate, and threaded holes are provided on the two connection blocks.

[0013] Technical effects and advantages of the utility model:

[0014] The anti-falling leg of the electric vehicle has an arc surface arranged on the outer wall of the support block and two rollers installed in the support block. When the support block contacts the ground, the arc surface and the rollers contact the ground first, so that the support block can smoothly transition from arc surface support to plane support, thereby avoiding the problem that the electric vehicle is not stable enough or even falls when it is parked on an uneven road surface. At the same time, the two support blocks can stably support the electric vehicle and prevent the electric vehicle from falling.

[0015] By pulling the fixing pin to separate the fixing pin from the support column, the support block can be removed from the support column, which is convenient for maintenance and replacement of worn or damaged support blocks after a long time;

[0016] The support column is driven to retract into the fixed sleeve by the hydraulic cylinder, so that the support block can release the support of the electric vehicle when the electric vehicle is about to drive. At the same time, when the support block is reset, the friction between the ground is avoided, thereby extending the service life of the support block. The electric vehicle anti-falling support leg can quickly and stably support the electric vehicle, and it is convenient to disassemble and assemble the support block, which is convenient for the maintenance and replacement of the support block at a later time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the driving motor box fixing sleeve of the utility model;

[0020] Figure 3 It is a cross-sectional view of the fixed sleeve support block of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the support column of the utility model.

[0022] In the figure: 1. mounting base; 2. cover plate; 3. connecting block; 4. driving motor; 5. driving gear; 6. positioning block; 7. rotating column; 8. driven gear; 9. fixing sleeve; 10. hydraulic cylinder; 11. limiting block; 12. supporting column; 13. supporting block; 14. limiting rod; 15. roller; 16. fixing pin; 17. limiting ring; 18. fixing spring. DETAILED DESCRIPTION

[0023] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0024] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0025] See also Figure 1-4 The utility model provides an anti-falling support leg for an electric vehicle, comprising a mounting seat 1 and a cover plate 2 mounted on the surface of the mounting seat 1, the cover plate 2 being fixed to the surface of the mounting seat 1 by countersunk bolts, the mounting seat 1 and the cover plate 2 can be installed at the bottom of the frame of the electric vehicle according to actual installation requirements, two connecting blocks 3 connected to the electric vehicle are symmetrically welded on the surface of the cover plate 2, threaded holes are provided on the two connecting blocks 3, the connecting blocks 3 are installed with the electric vehicle by bolts, so as to fix the position of the mounting seat 1;

[0026] A driving motor 4 is installed at the bottom of the cover plate 2 by bolts, and a driving gear 5 is fixed to the outer wall of the output shaft of the driving motor 4. Two positioning blocks 6 are symmetrically fixed to the bottom wall of the inner cavity of the mounting seat 1 by bolts, and a rotating column 7 is rotatably connected to the positioning block 6 by a bearing. The positioning block 6 can support the rotating column 7, thereby ensuring the stability of the rotating column 7 when rotating. A driven gear 8 meshing with the driving gear 5 is fixed to the outer wall of the rotating column 7. The end faces of the two rotating columns 7 are fixed with fixed sleeves 9, and the fixed sleeves 9 are movably connected to the mounting seat 1;

[0027] A hydraulic cylinder 10 is installed in the fixing sleeve 9, and a limit block 11 movably connected to the fixing sleeve 9 is fixed at the output end of the hydraulic cylinder 10. A support column 12 movably connected to the fixing sleeve 9 is fixed to one end of the limit block 11 by bolts. A support block 13 for supporting the electric vehicle is movably connected to the outside of the support column 12. Limit rods 14 are fixed to the outer walls of both sides of the support column 12. Two limit grooves matching the limit rods 14 are symmetrically provided in the support block 13. The limit rods 14 can limit the connection position between the support column 12 and the support block 13 to prevent the support block 13 from shaking outside the support column 12. An outer wall on one side of the support block 13 is provided with an arc surface, and an outer wall on one side of the support block 13 is provided with an installation groove. Two rollers 15 are connected to the mounting groove of 13 through a rotating shaft, and the driving motor 4 drives the driving gear 5 to rotate. The driving gear 5 drives the rotating column 7 and the fixing sleeve 9 to rotate through the driven gear 8, thereby driving the support block 13 to rotate, and the support block 13 contacts the ground, thereby stably supporting the electric vehicle to prevent the electric vehicle from tipping over. Due to the arc surface set on the outer wall of the support block 13 and the two rollers 15 installed in the support block 13, when the support block 13 contacts the ground, the arc surface and the rollers 15 contact the ground first, so that the support block 13 can smoothly transition from the arc surface support to the plane support, avoiding the problem that the electric vehicle is not stable enough or even tips over when it is parked on an uneven road surface;

[0028] A through hole is provided at the top of the support block 13, and a fixing pin 16 is movably connected in the through hole at the top of the support block 13. A fixing hole matching the fixing pin 16 is provided at the top of the support column 12. A limiting ring 17 is fixed to the outer wall of the fixing pin 16, and a fixing spring 18 for supporting the limiting ring 17 is sleeved on the outside of the fixing pin 16. The elastic force of the fixing spring 18 can be set according to actual use requirements. At the same time, the fixing spring 18 supports the limiting ring 17 so that the fixing pin 16 is inserted into the fixing hole of the support column 12, thereby fixing the position of the support block 13. By pulling the fixing pin 16 to separate the fixing pin 16 from the support column 12, the support block 13 can be removed from the support column 12. After a long time, it is convenient to maintain and replace the worn or damaged support block 13.

[0029] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The control method of the utility model is controlled by a controller, and the control circuit of the controller can be realized by simple programming by technicians in this field. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0030] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] Working principle:

[0032] The electric vehicle anti-falling support leg is connected to the electric vehicle through the connecting block 3 when in use. When the electric vehicle needs to stop, the driving motor 4 is started to drive the driving gear 5 to rotate. The driving gear 5 drives the rotating column 7 and the fixing sleeve 9 to rotate through the driven gear 8, thereby driving the supporting block 13 to rotate. When the supporting block 13 contacts the ground, the arc surface and the roller 15 contact the ground first, so that the supporting block 13 can smoothly transition from the arc surface support to the plane support. The two supporting blocks 13 contact the ground, thereby stably supporting the electric vehicle and preventing the electric vehicle from falling over.

[0033] When the electric vehicle needs to travel, the hydraulic cylinder 10 drives the support column 12 to retract into the fixed sleeve 9, drives the support block 13 to rise and separate from the ground, releases the support of the electric vehicle by the support block 13, and drives the motor 4 to rotate in the opposite direction to reset the support block 13. When the support block 13 is reset, the friction between the support block 13 and the ground is avoided, and the service life of the support block 13 is extended. After the support block 13 is reset, the hydraulic cylinder 10 pushes the support column 12 to move, so that the support block 13 moves to the initial position;

[0034] When the support block 13 becomes worn or damaged after long-term use, the fixing pin 16 is pulled to separate the fixing pin 16 from the support column 12, and the limiting ring 17 compresses the fixing spring 18, so that the support block 13 is removed from the support column 12, and the support block 13 is maintained or replaced. The maintained or replaced support block 13 is replaced on the outside of the support column 12, and the fixing spring 18 supports the limiting ring 17 so that the fixing pin 16 is inserted into the fixing hole of the support column 12, thereby fixing the position of the support block 13.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-falling support leg for an electric vehicle, comprising a mounting seat (1) and a cover plate (2) mounted on the surface of the mounting seat (1), characterized in that: A driving motor (4) is installed at the bottom of the cover plate (2); two positioning blocks (6) are symmetrically fixed to the bottom wall of the inner cavity of the mounting seat (1); a rotating column (7) is rotatably connected inside the positioning block (6); a fixing sleeve (9) is fixed to the end surface of the two rotating columns (7); a supporting column (12) is movably connected inside the fixing sleeve (9); and a supporting block (13) for supporting the electric vehicle is movably connected to the outside of the supporting column (12); An outer wall of one side of the support block (13) is provided with an arc surface, and an outer wall of one side of the support block (13) is provided with a mounting groove, two rollers (15) are rotatably connected in the mounting groove of the support block (13) via a rotating shaft, a through hole is provided at the top of the support block (13), a fixing pin (16) is movably connected in the through hole at the top of the support block (13), and a fixing hole matching the fixing pin (16) is provided at the top of the support column (12).

2. The anti-falling support leg of an electric vehicle according to claim 1, characterized in that: A limiting ring (17) is fixed to the outer wall of the fixing pin (16), and a fixing spring (18) for supporting the limiting ring (17) is sleeved on the outside of the fixing pin (16).

3. The anti-falling support leg of an electric vehicle according to claim 1, characterized in that: A hydraulic cylinder (10) is installed in the fixing sleeve (9), and a limiting block (11) fixedly connected to a supporting column (12) is fixed to the output end of the hydraulic cylinder (10).

4. The anti-falling support leg of an electric vehicle according to claim 1, characterized in that: A driving gear (5) is fixed on the outer wall of the output shaft of the driving motor (4), and a driven gear (8) meshing with the driving gear (5) is fixed on the outer wall of the rotating column (7).

5. The anti-falling support leg of an electric vehicle according to claim 3, characterized in that: Limiting rods (14) are fixed to the outer walls on both sides of the support column (12), and two limiting grooves matching the limiting rods (14) are symmetrically provided in the support block (13).

6. The anti-falling support leg of an electric vehicle according to claim 1, characterized in that: Two connection blocks (3) connected to the electric vehicle are symmetrically fixed on the surface of the cover plate (2), and threaded holes are provided on the two connection blocks (3).

Images