CN218751220U

CN218751220U - Electric vehicle frame with multidimensional damping device

Info

Publication number: CN218751220U
Application number: CN202223119569.9U
Authority: CN
Inventors: 荆贵堂; 王月行; 刘培利; 刘文胜; 田石磊
Original assignee: Tianjin Jinshang Electric Vehicle Co ltd
Current assignee: Tianjin Jinshang Electric Vehicle Co ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-03-28
Anticipated expiration: 2032-11-22

Abstract

The utility model discloses an electric motor car frame with multidimension damping device, including automobile body frame and tailstock, the both ends of automobile body frame are head end and tail end respectively, tailstock frame assembly is in the tail end lower part of automobile body frame still including being used for right the automobile body frame and tailstock carries out the fixed damper who fixes a point the absorbing, is used for right the automobile body frame and the tailstock carries out dynamic absorbing dynamic damping mechanism and be used for with dynamic damping mechanism with automobile body frame sliding connection's coupling mechanism, fixed damper is located the automobile body frame with the junction of tailstock, dynamic damping mechanism correspond fixed damper and are located the automobile body frame with between the tailstock, coupling mechanism corresponds dynamic damping mechanism and is located the tail end of automobile body frame, the beneficial effects of the utility model are that be equipped with fixed damper and the cooperation of dynamic damping mechanism, can carry out multidimension shock attenuation to the tail end of automobile body frame, and the shock attenuation is effectual, and the shock attenuation structure position is adjustable.

Description

Electric vehicle frame with multidimensional damping device

Technical Field

The utility model belongs to the technical field of the technique and specifically relates to an electric motor car frame with multidimension damping device is related to.

Background

In the prior art, electric vehicles, i.e. electrically driven vehicles, also known as electrically driven vehicles. Electric vehicles are classified into alternating current electric vehicles and direct current electric vehicles. Generally, an electric vehicle is a vehicle which takes a battery as an energy source, converts electric energy into mechanical energy through a controller, a motor and other components to move so as to control the current and change the speed; electric bicycles are popular among users because of their advantages of environmental protection, portability, etc., and electric vehicles and bicycles have become the first choice for low-carbon lifers to travel. The frame is a main body part forming the electric bicycle, is a balance center and a force transmission part of the whole bicycle, bears all forces including a bicycle body, a rider, a load and the like, and is related to the personal safety of the rider in the riding process. Therefore, the requirement on the frame strength of the electric vehicle is very high, the existing electric vehicle is not provided with an independent damping device, so that the riding of customers is uncomfortable, and the electric vehicle is too bumpy on roads outside the highway, so that the application of the electric vehicle is limited.

The application numbers are: 202020623455.X, chinese Utility model patent discloses a damping frame for electric vehicle, comprising a main frame, a battery box frame is arranged in the main frame, one end of a main beam is welded in the middle of one end of the main frame, the other end of the main beam is fixedly provided with a main frame pipe, a seat frame is fixedly arranged at the other end of the main frame in an inclined manner, a main frame side frame and a vertical fork are arranged on the side wall of the main frame, the vertical fork is positioned above the main frame side frame, the girder is kept away from to the vertical fork and is provided with damper, and damper includes shock attenuation mounting bracket, lower shock attenuation mounting bracket, bumper shock absorber, it sets up on vertical fork to go up the shock attenuation mounting bracket, and lower shock attenuation mounting bracket one end is provided with the chain stay splicing, is provided with the bumper shock absorber down between the shock attenuation mounting bracket other end and the last shock attenuation mounting bracket, the chain stay splicing with still be provided with the chain stay between the saddle frame. However, the shock absorption of the shock absorption frame of the electric vehicle is realized by the shock absorber only through one end of the shock absorption frame, the shock absorption effect is poor, the shock absorber is connected with the shock absorption frame in a fixed mode, the shock absorption of a fixed point can only be realized on the shock absorption frame, the shock absorption mode is single, the shock absorption structure cannot be adjusted according to the actual situation, and the practicability is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an electric motor car frame with multidimension damping device.

In order to achieve the above object, the present invention provides a technical solution:

the utility model provides an electric motor car frame with multidimension damping device, includes automobile body frame and tailstock, the both ends of automobile body frame are head end and tail end respectively, tailstock assembly is in the tail end lower part of automobile body frame still including being used for right the automobile body frame with the tailstock carries out the fixed damper of fixed point absorbing, is used for right the automobile body frame with the tailstock carries out dynamic damping's dynamic damper and is used for with dynamic damper with automobile body frame sliding connection's coupling mechanism, fixed damper is located the automobile body frame with the junction of tailstock, dynamic damper correspond fixed damper and are located the automobile body frame with between the tailstock, coupling mechanism corresponds dynamic damper and is located the tail end of automobile body frame.

Fixed damper includes shock attenuation hydraulic stem, fixed damping base and fixed damping spring, the slope of shock attenuation hydraulic stem sets up automobile body frame with between the rear of a vehicle frame and its both ends respectively with automobile body frame and the rear of a vehicle frame rotates to be connected, fixed damping base is equipped with two sets ofly, and is two sets of fixed damping base sets up respectively the both ends lateral part of shock attenuation hydraulic stem and with shock attenuation hydraulic stem fixed connection, it is two sets of leave the interval between the fixed damping base, fixed damping spring sets up two sets of between the fixed damping base and its both ends respectively with two sets of fixed damping base fixed connection, fixed damping spring passes through fixed damping base cover is established the outside of shock attenuation hydraulic stem.

Dynamic damper includes dynamic damping base, dynamic shock attenuation pole and dynamic damper, the slope of dynamic damping base sets up the middle part of car tail frame and with car tail frame fixed connection, the dynamic shock attenuation pole comprises the shock attenuation pole that two relative intervals set up, the dynamic shock attenuation pole sets up on the dynamic shock attenuation base and its one end through the pivot with the dynamic shock attenuation base rotates to be connected, the dynamic shock attenuation pole is kept away from the one end of dynamic shock attenuation base pass through coupling mechanism with car body frame sliding connection, dynamic damper sets up the middle part of dynamic shock attenuation pole, the one end that two shock attenuation poles set up relatively is connected through dynamic damper.

Dynamic damper includes shock attenuation collar and dynamic damping spring, the shock attenuation collar is equipped with two sets ofly, and is two sets ofly the shock attenuation collar sets up respectively in the relative one end that sets up of two shock attenuation poles and with the shock attenuation pole fixed connection that corresponds, dynamic damping spring sets up two sets ofly between the shock attenuation collar and its both ends respectively with two sets ofly shock attenuation collar fixed connection, dynamic damping spring passes through shock attenuation collar overlaps and establishes the middle part outside of dynamic damping pole.

The fixed damping mechanism and the dynamic damping mechanism are arranged between the vehicle body frame and the vehicle tail frame in a relatively inclined mode, and one end, far away from the vehicle tail frame, of the dynamic damping rod is located at the tail end of the vehicle body frame.

Coupling mechanism is including connecting guide rail and link block, the setting of connecting guide rail is in the tail end lower part of automobile body frame and with automobile body frame fixed connection, link block sets up on the connecting guide rail and with connecting guide rail sliding connection, the dynamic shock absorber pole is kept away from the one end of automobile tail frame through the pivot with link block rotates to be connected, the dynamic shock absorber pole passes through link block with connecting guide rail sliding connection.

The positioning screw is arranged on the connecting sliding block and penetrates through the connecting sliding block and the connecting sliding block is in threaded connection.

The mud guard is arranged at one end of the vehicle tail frame far away from the vehicle body frame and is fixedly connected with the vehicle tail frame through a bolt, the fender sets up the fender mud frame is kept away from the one end of tailstock and with fender mud frame fixed connection.

Still include the handlebar, the handlebar setting is in the head end of automobile body frame just through the installation piece with automobile body frame rotates and connects.

The shock attenuation hydraulic stem with the automobile body frame and the junction of car tailstock is equipped with the installation screw rod, the shock attenuation hydraulic stem through the installation screw rod with the automobile body frame and the car tailstock rotates to be connected, the shock attenuation hydraulic stem with the one end that the automobile body frame is connected is located the middle part of automobile body frame, the shock attenuation hydraulic stem with the one end that the car tailstock frame is connected is located the middle part of car tailstock.

The utility model has the advantages that:

simple structure is equipped with fixed damper and dynamic damper cooperation, can carry out the multidimension shock attenuation to the tail end of automobile body frame, and the shock attenuation is effectual, carries out the compound shock attenuation that fixed point shock attenuation and dynamic shock attenuation combine to the automobile body frame, enriches the shock attenuation mode of automobile body frame, is equipped with coupling mechanism, can carry out sliding connection with dynamic damper and automobile body frame, can adjust dynamic damper's position according to actual conditions, uses in a flexible way, and the practicality is strong.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the dynamic damping mechanism and the connecting mechanism of the present invention;

fig. 3 is a schematic view of the frame and wheel set of the present invention.

In the figure: 1. a vehicle body frame; 2. a tailstock; 3. a shock-absorbing hydraulic rod; 4. fixing a damping base; 5. fixing a damping spring; 6. a dynamic shock absorbing base; 7. a dynamic damper rod; 8. a shock absorbing mounting ring; 9. a dynamic damping spring; 10. connecting the guide rails; 11. connecting the sliding block; 12. a set screw; 13. a mud guard; 14. a fender; 15. a handlebar.

Detailed Description

The invention will be described in further detail with reference to the accompanying drawings,

the utility model provides an electric motor car frame with multidimension damping device, including automobile body frame 1 and tailstock 2, the both ends of automobile body frame 1 are head end and tail end respectively, tailstock 2 assembles in the tail end lower part of automobile body frame 1, still including being used for carrying out the fixed damper of fixed point absorbing to automobile body frame 1 and tailstock 2, be used for carrying out dynamic absorbing dynamic damper and being used for dynamic damping mechanism and automobile body frame 1 sliding connection's coupling mechanism to automobile body frame 1 and tailstock 2, fixed damper is located the junction of automobile body frame 1 and tailstock 2, dynamic damping mechanism corresponds fixed damper and is located between automobile body frame 1 and tailstock 2, coupling mechanism corresponds dynamic damping mechanism and is located the tail end of automobile body frame 1, the utility model discloses the overall structure schematic diagram is as shown in FIG. 1.

The fixed damping mechanism comprises a damping hydraulic rod 3, a fixed damping base 4 and a fixed damping spring 5, the damping hydraulic rod 3 is obliquely arranged between a vehicle body frame 1 and a vehicle tail frame 2, two ends of the damping hydraulic rod are respectively rotatably connected with the vehicle body frame 1 and the vehicle tail frame 2, the fixed damping base 4 is provided with two groups, the two groups of fixed damping bases 4 are respectively arranged at two end side parts of the damping hydraulic rod 3 and fixedly connected with the damping hydraulic rod 3, an interval is reserved between the two groups of fixed damping bases 4, the fixed damping spring 5 is arranged between the two groups of fixed damping bases 4, two ends of the fixed damping spring are respectively fixedly connected with the two groups of fixed damping bases 4, the fixed damping spring 5 is sleeved outside the damping hydraulic rod 3 through the fixed damping bases 4, the fixed damping mechanism passes through the damping hydraulic rod 3, the fixed damping base 4 is matched with the fixed damping spring 5, the vehicle body frame 1 is elastically connected with the vehicle tail frame 2 and the vehicle tail frame 1 is subjected to fixed point damping, the damping hydraulic rod 3 is used for providing installation support for the fixed damping base 4 and is used for the fixed damping spring 5 and for connecting the vehicle tail frame 3 with the fixed damping spring 5 and the vehicle tail frame 2.

Dynamic damper includes dynamic damping base 6, dynamic shock attenuation pole 7 and dynamic damper, dynamic damping base 6 slope set up at the middle part of car tailstock 2 and with car tailstock 2 fixed connection, dynamic shock attenuation pole 7 comprises the shock attenuation pole that two relative intervals set up, dynamic shock attenuation pole 7 sets up on dynamic damping base 6 and its one end is rotated through pivot and dynamic damping base 6 and is connected, dynamic shock attenuation pole 7 keeps away from dynamic damping base 6 one end and passes through coupling mechanism and car body frame 1 sliding connection, dynamic damper sets up the middle part at dynamic shock attenuation pole 7, the relative one end that sets up of two shock attenuation poles is connected through dynamic damper, dynamic damper passes through dynamic damping base 6, dynamic shock attenuation pole 7 and the cooperation of dynamic damper, carry out dynamic shock attenuation to car body frame 1 and car tailstock 2, wherein, damping base is used for providing the installation for dynamic shock attenuation pole 7 and is connected dynamic shock attenuation pole 7 with car tailstock 2, dynamic shock attenuation pole 7 is used for dynamic damping pole 7 provides the installation support and is connected dynamic damper with dynamic damper and shock attenuation base, dynamic damper through two sets of shock attenuation pole 7 and the cooperation of dynamic damper with car tailstock 2, dynamic damper 7 constitutes through two sets of shock attenuation poles jointly, dynamic damper is used for dynamic damper middle part structure as the dynamic damping pole 2 the dynamic damper and the dynamic damper is connected the car tail frame 2 as the dynamic damper is shown as the dynamic damper structure of the dynamic damper middle part of the dynamic damper.

Dynamic damping subassembly includes shock attenuation collar 8 and dynamic damping spring 9, shock attenuation collar 8 is equipped with two sets ofly, two sets of shock attenuation collar 8 set up respectively in the relative one end that sets up of two shock attenuation poles and with the shock attenuation pole fixed connection that corresponds, dynamic damping spring 9 sets up between two sets of shock attenuation collar 8 and its both ends respectively with two sets of shock attenuation collar 8 fixed connection, dynamic damping spring 9 overlaps through shock attenuation collar 8 and establishes the middle part outside at dynamic damping pole 7, dynamic damping subassembly passes through shock attenuation collar 8 and the cooperation of dynamic damping spring 9, as the shock-absorbing structure in the dynamic damping mechanism, wherein, shock attenuation collar 8 is used for providing the erection bracing for dynamic damping spring 9 and installs dynamic damping spring 9 at the middle part of dynamic damping mechanism, dynamic damping spring 9 is used for carrying out elastic connection with two sets of shock attenuation collar 8, thereby as the shock-absorbing structure in the dynamic damping mechanism.

Fixed damper and the relative slope setting of dynamic damper set up between automobile body frame 1 and rear of a vehicle frame 2, and the one end that dynamic damper 7 kept away from rear of a vehicle frame 2 is located the tail end of automobile body frame 1, and wherein, fixed damper sets up with the relative slope of dynamic damper and can carry out the multidimension shock attenuation to automobile body frame 1 and rear of a vehicle frame 2 and effectively promote the stability between automobile body frame 1 and rear of a vehicle frame 2.

The connecting mechanism comprises a connecting guide rail 10 and a connecting slide block 11, the connecting guide rail 10 is arranged on the lower portion of the tail end of the vehicle body frame 1 and is fixedly connected with the vehicle body frame 1, the connecting slide block 11 is arranged on the connecting guide rail 10 and is in sliding connection with the connecting guide rail 10, one end, away from the vehicle tail frame 2, of the dynamic damping rod 7 is rotatably connected with the connecting slide block 11 through a rotating shaft, the dynamic damping rod 7 is in sliding connection with the connecting guide rail 10 through the connecting slide block 11, the connecting mechanism is matched with the connecting guide rail 10 through the connecting guide rail 10 and the connecting slide block 11, one end, away from the vehicle tail frame 2, of the damping hydraulic rod 3 is in sliding connection with the tail end of the vehicle body frame 1, the connecting guide rail 10 is used for providing sliding support for the connecting slide block 11 and enabling the connecting slide block 11 to be in sliding connection with the vehicle body frame 1, and the connecting slide block 11 is used for enabling one end, away from the vehicle tail frame 2, of the dynamic damping rod 7 to be in sliding connection with the tail end of the vehicle body frame 1 under the effect of the connecting guide rail 10.

Still include set screw 12, set screw 12 sets up on link block 11 and runs through link block 11 and link block 11 threaded connection, wherein, set screw 12 is used for fixing link block 11 in the assigned position department of connecting guide rail 10, the accessible rotates set screw 12, make it with link rail 10 butt, thereby fix link block 11 in the assigned position department of connecting guide rail 10, when link block 11 is fixed relatively with link rail 10, fixed damper constitutes dual fixed point shock-absorbing structure with dynamic damper and carries out the fixed point shock attenuation to body frame 1.

Still including keeping off mud frame 13 and fender 14, keep off mud frame 13 and set up the one end of keeping away from automobile body frame 1 at tailstock 2 and through bolt and tailstock 2 fixed connection, fender 14 set up keep away from tailstock 2 one end of frame 13 and with keep off mud frame 13 fixed connection keeping off mud frame 13, wherein, keep off mud frame 13 and be used for providing the erection bracing for fender 14 and be connected fender 14 and tailstock 2, fender 14 is used for assembling on tailstock frame 2 with the rear wheel to the electric motor car sheltering from under the effect that keeps off mud frame 13, prevents that earth from getting rid of on the frame of electric motor car, the utility model discloses frame and wheelset cooperation sketch map are shown in fig. 3.

Still include handlebar 15, handlebar 15 sets up at the head end of automobile body frame 1 and rotates with automobile body frame 1 through the installation piece and be connected, and wherein, handlebar 15 is used for controlling the advancing direction of electric motor car.

The junction of shock attenuation hydraulic stem 3 and automobile body frame 1 and tailstock 2 is equipped with the installation screw rod, shock attenuation hydraulic stem 3 rotates with automobile body frame 1 and tailstock 2 through the installation screw rod to be connected, the one end that shock attenuation hydraulic stem 3 and automobile body frame 1 are connected is located the middle part of automobile body frame 1, the one end that shock attenuation hydraulic stem 3 and tailstock 2 are connected is located the middle part of tailstock 2, wherein, shock attenuation hydraulic stem 3 sets up and the two constitutes three point support structure jointly with the junction of automobile body frame 1 and tailstock 2 with the relative slope of dynamic shock attenuation pole 7, can effectively promote the stability of frame.

The working principle is as follows:

fixed damper constitutes dual shock-absorbing structure on the frame with dynamic damper, can combine fixed point shock attenuation and dynamic shock attenuation in order to carry out the shock attenuation to the frame, effectively promote the shock attenuation effect of frame, and accessible set screw 12 adjustment dynamic damper and automobile body frame 1's hookup location is in order to constitute dual fixed point shock attenuation, carry out the shock attenuation to the frame through the three point bearing structure that the two constitutes, promote the stability of frame, thereby adjust the shock attenuation state of frame in order to be applicable to different road conditions according to actual conditions and user demand.

The beneficial effects of the utility model are that simple structure is equipped with fixed damper and the cooperation of dynamic damper, can carry out the multidimension shock attenuation to the tail end of automobile body frame, and the shock attenuation is effectual, carries out the compound shock attenuation that fixed point shock attenuation and dynamic shock attenuation combine to the automobile body frame, enriches the shock attenuation mode of automobile body frame, is equipped with coupling mechanism, can carry out sliding connection with dynamic damper and automobile body frame, can adjust dynamic damper's position according to actual conditions, uses in a flexible way, and the practicality is strong.

While one embodiment of the present invention has been described in detail, the present invention is only a preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The electric vehicle frame with the multi-dimensional damping device comprises a vehicle body frame (1) and a vehicle tail frame (2), wherein the two ends of the vehicle body frame (1) are respectively a head end and a tail end, and the vehicle tail frame (2) is assembled at the lower part of the tail end of the vehicle body frame (1), and is characterized by further comprising a fixed damping mechanism for performing fixed-point damping on the vehicle body frame (1) and the vehicle tail frame (2), a dynamic damping mechanism for performing dynamic damping on the vehicle body frame (1) and the vehicle tail frame (2), and a connecting mechanism for slidably connecting the dynamic damping mechanism and the vehicle body frame (1), wherein the fixed damping mechanism is located at the joint of the vehicle body frame (1) and the vehicle tail frame (2), the dynamic damping mechanism is located between the vehicle body frame (1) and the vehicle tail frame (2) and corresponds to the fixed damping mechanism, and the connecting mechanism is located at the tail end of the vehicle body frame (1) and corresponds to the dynamic damping mechanism.

2. The frame of the electric vehicle with the multi-dimensional shock absorption device as claimed in claim 1, wherein the fixed shock absorption mechanism comprises a shock absorption hydraulic rod (3), a fixed shock absorption base (4) and a fixed shock absorption spring (5), the shock absorption hydraulic rod (3) is obliquely arranged between the frame (1) and the frame (2) and two ends of the shock absorption hydraulic rod are respectively and rotatably connected with the frame (1) and the frame (2), two sets of the fixed shock absorption bases (4) are arranged, the two sets of the fixed shock absorption bases (4) are respectively arranged on two side portions of the shock absorption hydraulic rod (3) and are fixedly connected with the shock absorption hydraulic rod (3), a gap is reserved between the two sets of the fixed shock absorption bases (4), the fixed shock absorption spring (5) is arranged between the two sets of the fixed shock absorption bases (4) and two ends of the fixed shock absorption bases (4) are respectively and fixedly connected with the two sets of the fixed shock absorption bases (4), and the fixed shock absorption spring (5) is sleeved outside the shock absorption hydraulic rod (3) through the fixed shock absorption bases (4).

3. The frame of the electric vehicle with the multi-dimensional shock absorption device as claimed in claim 2, wherein the dynamic shock absorption mechanism comprises a dynamic shock absorption base (6), a dynamic shock absorption rod (7) and a dynamic shock absorption assembly, the dynamic shock absorption base (6) is obliquely arranged in the middle of the tailstock (2) and is fixedly connected with the tailstock (2), the dynamic shock absorption rod (7) consists of two shock absorption rods which are oppositely arranged at intervals, the dynamic shock absorption rod (7) is arranged on the dynamic shock absorption base (6) and one end of the dynamic shock absorption rod is rotatably connected with the dynamic shock absorption base (6) through a rotating shaft, one end of the dynamic shock absorption rod (7) far away from the dynamic shock absorption base (6) is slidably connected with the body frame (1) through a connecting mechanism, the dynamic shock absorption assembly is arranged in the middle of the dynamic shock absorption rod (7), and the opposite ends of the two shock absorption rods are connected through the dynamic shock absorption assembly.

4. The frame of the electric vehicle with the multi-dimensional shock absorption device as claimed in claim 3, wherein the dynamic shock absorption assembly comprises two sets of shock absorption mounting rings (8) and dynamic shock absorption springs (9), the two sets of shock absorption mounting rings (8) are respectively arranged at one end of the two shock absorption rods opposite to each other and fixedly connected with the corresponding shock absorption rods, the dynamic shock absorption springs (9) are arranged between the two sets of shock absorption mounting rings (8) and fixedly connected with the two sets of shock absorption mounting rings (8) at two ends, and the dynamic shock absorption springs (9) are sleeved outside the middle parts of the dynamic shock absorption rods (7) through the shock absorption mounting rings (8).

5. The frame of the electric vehicle with the multi-dimensional shock absorption device as claimed in claim 4, wherein a fixed shock absorption mechanism and a dynamic shock absorption mechanism are obliquely arranged between the body frame (1) and the tail frame (2), and one end of the dynamic shock absorption rod (7) far away from the tail frame (2) is positioned at the tail end of the body frame (1).

6. The frame of the electric vehicle with the multi-dimensional shock absorption device as claimed in claim 5, wherein the connection mechanism comprises a connection guide rail (10) and a connection slider (11), the connection guide rail (10) is arranged at the lower part of the tail end of the vehicle body frame (1) and is fixedly connected with the vehicle body frame (1), the connection slider (11) is arranged on the connection guide rail (10) and is slidably connected with the connection guide rail (10), one end of the dynamic shock absorption rod (7) far away from the vehicle tail frame (2) is rotatably connected with the connection slider (11) through a rotating shaft, and the dynamic shock absorption rod (7) is slidably connected with the connection guide rail (10) through the connection slider (11).

7. The frame of an electric vehicle with a multi-dimensional shock absorption device as claimed in claim 6, further comprising a set screw (12), wherein the set screw (12) is arranged on the connecting slide block (11) and is threaded with the connecting slide block (11) through the connecting slide block (11).

8. The frame of the electric vehicle with the multi-dimensional shock absorption device as claimed in claim 1, further comprising a mud guard (13) and a mud guard (14), wherein the mud guard (13) is arranged at one end of the tail frame (2) far away from the body frame (1) and is fixedly connected with the tail frame (2) through bolts, and the mud guard (14) is arranged at one end of the mud guard (13) far away from the tail frame (2) and is fixedly connected with the mud guard (13).

9. A multi-dimensional shock absorbing device for an electric vehicle frame as claimed in claim 1, further comprising a handlebar (15), said handlebar (15) being arranged at a head end of said body frame (1) and being rotatably connected to said body frame (1) by means of a mounting block.

10. The frame of the electric vehicle with the multi-dimensional shock absorption device as claimed in claim 2, wherein a mounting screw is arranged at the joint of the shock absorption hydraulic rod (3) and the frame (1) and the frame (2), the shock absorption hydraulic rod (3) is rotatably connected with the frame (1) and the frame (2) through the mounting screw, one end of the shock absorption hydraulic rod (3) connected with the frame (1) is located in the middle of the frame (1), and one end of the shock absorption hydraulic rod (3) connected with the frame (2) is located in the middle of the frame (2).