Electric freight tricycle with turnover structure

Abstract

The utility model discloses an electric freight tricycle with a turnover structure, which comprises an electric vehicle and a carriage arranged on the upper portion of one side of the electric vehicle. The turnover mechanism is used for turning over the carriage, the buffering mechanism is used for providing buffering support for the carriage, the bracket mechanism is used for providing auxiliary lifting for the carriage, the turnover mechanism is assembled between the carriage and the electric vehicle, and the buffering mechanism is arranged on the inner side of the upper portion of the electric vehicle corresponding to the carriage. The utility model has the benefits that the turnover mechanism is arranged, so that the semi-turnover action of the carriage can be realized to quickly unload goods in the carriage, the unloading efficiency of the carriage is improved, the quick unloading requirement in the goods transportation process can be met, and the use scene of the carriage is enriched; the buffering mechanism is arranged to be matched with the bracket mechanism, buffering supporting can be provided for the carriage in the turning and resetting process of the carriage, the stability in the turning process is guaranteed, and a certain shock absorption function is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric tricycles, in particular to an electric freight tricycle with a flip structure. Background Art

[0002] In the prior art, with the continuous development of my country's economy, the cargo transportation industry is also expanding. The transportation of goods is generally carried out by special freight vehicles. Large freight trucks have a large load capacity, but have certain requirements for the width of the road. Freight tricycles, as small transport vehicles, can enter some small streets and alleys that large trucks cannot reach, and the operation of freight tricycles is also very simple. Electric freight tricycles are a new type of small freight tool with low cost, flexible and convenient use, and are particularly suitable for short-distance transportation of small amounts of goods. With the improvement of battery life and power performance, the load capacity of electric tricycles has been greatly improved, but due to the relatively small size of the vehicle and the shape restrictions of the carriage and baffle, it does not have a flipping function, and cannot realize the flipping action of its carriage to quickly unload the goods in the carriage, resulting in its low unloading efficiency and cannot meet the requirements of rapid unloading during cargo transportation, and has certain usage restrictions.

[0003] The Chinese utility model patent with application number: 202121388398.2 discloses a lifting and weighing freight tricycle, including a frame assembly, a lifting and fixing frame, a lifting mechanism, a support assembly, a carriage body, a hydraulic system and a weighing system, wherein the lifting and fixing frame is welded and fixed on the frame assembly, the frame assembly and the support assembly are connected together by a lifting mechanism, the carriage body and the support assembly are connected together by a weighing system, the weighing system and the hydraulic system are synchronously installed on the frame assembly, and a hydraulic support frame and a lifting mechanism fixing pipe are welded at the rear end of the frame assembly, and the lifting and fixing frame includes two hydraulic cylinder fixing pipes and eight special guide rails. However, this type of lifting and weighing freight tricycle can only realize the lifting action of its carriage, and it does not have a flipping function, and cannot realize the flipping action of its carriage to quickly unload the goods in the carriage, resulting in its low unloading efficiency, and cannot meet the requirements of rapid unloading during cargo transportation, and has certain usage restrictions. Utility Model Content

[0004] The utility model aims to provide an electric freight tricycle with a flip structure.

[0005] In order to achieve the above purpose, the technical solution proposed by the utility model is:

[0006] An electric freight tricycle with a flipping structure comprises an electric vehicle and a carriage, wherein the carriage is arranged on an upper part of one side of the electric vehicle, and further comprises a flipping mechanism for flipping the carriage, a buffering mechanism for providing buffering support for the carriage, and a bracket mechanism for providing auxiliary support for the carriage, wherein the flipping mechanism is assembled between the carriage and the electric vehicle, the buffering mechanism is arranged on the upper inner side of the electric vehicle corresponding to the carriage, and the bracket mechanism is arranged at the upper end of the buffering mechanism.

[0007] The flipping mechanism includes a flipping hydraulic cylinder, a flipping connecting seat and a flipping shaft. The flipping hydraulic cylinder is arranged between the electric vehicle and the carriage and one end of the flipping hydraulic cylinder is rotatably connected to the electric vehicle. The flipping hydraulic cylinder is tilted at the bottom of one end of the carriage. The flipping connecting seat is arranged at the bottom of one end of the carriage corresponding to the flipping hydraulic cylinder and is fixedly connected to the carriage. The output end of the flipping hydraulic cylinder is rotatably connected to the flipping connecting seat. The flipping shaft is arranged at the connection between the output end of the flipping hydraulic cylinder and the flipping connecting seat and passes through the output end of the flipping hydraulic cylinder and the flipping connecting seat. The flipping connecting seat is rotatably connected to the output end of the flipping hydraulic cylinder through the flipping shaft.

[0008] The buffer mechanism includes a buffer hydraulic rod, a buffer mounting seat, a buffer spring and a buffer support block. The buffer hydraulic rod is arranged on the inner side of the upper part of the electric vehicle and is located at the bottom of the vehicle body. The buffer hydraulic rod is arranged vertically. The buffer mounting seat is arranged on the upper part of the buffer hydraulic rod and is fixedly connected to the buffer hydraulic rod. The buffer spring is arranged at the bottom of the buffer mounting seat and is sleeved on the outer side of the buffer hydraulic rod via the buffer mounting seat and the support. The buffer support block is arranged at the output end of the buffer hydraulic rod and is fixedly connected to the output end of the buffer hydraulic rod.

[0009] There are two groups of buffer mechanisms, which are symmetrically arranged at the bottom of the carriage.

[0010] It also includes a shock-absorbing component, which includes a shock-absorbing base block, a shock-absorbing support rod and a shock-absorbing spring. The shock-absorbing base blocks are provided with two groups, and the two groups of shock-absorbing base blocks are arranged in parallel and spaced apart between the electric vehicle and the bottom of the vehicle compartment. The shock-absorbing support rods are provided with two groups, and the two groups of shock-absorbing support rods are respectively arranged on the opposite sides of the two groups of shock-absorbing base blocks and fixedly connected to the corresponding shock-absorbing base blocks, with a spacing between the two groups of shock-absorbing support rods. The shock-absorbing spring is arranged between the two groups of shock-absorbing base blocks and its two ends are respectively fixedly connected to the two groups of shock-absorbing base blocks. The shock-absorbing spring is sleeved on the outside of the two groups of shock-absorbing support rods.

[0011] The bracket mechanism includes a lifting frame, a lifting mounting plate and a lifting mounting frame, the lifting frame is arranged at the upper end of the buffer mechanism, the lifting frame is located at the bottom of the carriage, the lifting mounting plates are provided with two groups, the two groups of lifting mounting plates are symmetrically arranged on both sides of the inner side of the lifting frame and are fixedly connected to the lifting frame, the buffer support blocks in the two groups of buffer mechanisms are respectively fixedly connected to the two groups of lifting mounting plates, the lifting mounting frame is arranged in the inner middle part of the lifting frame and is fixedly connected to the lifting frame, and the shock-absorbing base block located above is fixedly connected to the bottom of the lifting mounting frame.

[0012] It also includes a lifting beam, which is provided with several groups. The several groups of lifting beams are respectively arranged between the lifting frame, the lifting mounting plate and the lifting mounting frame. The lifting frame, the lifting mounting plate, the lifting mounting frame and the lifting beams together constitute a frame-type supporting structure, and the frame-type supporting structure is arranged at the bottom of the car body through a buffer mechanism and a shock-absorbing component.

[0013] The electric vehicle includes a frame, a handlebar, a roller assembly and a drive assembly. The frame is arranged at the bottom of the vehicle body and is mounted on the ground via the roller assembly. The buffer hydraulic rod and the shock-absorbing base block located below are arranged on the upper part of the frame and are fixedly connected to the frame. The handlebar is arranged at one end of the frame and is rotatably connected to the frame. The roller assembly is arranged at the lower part of the frame, and the drive assembly is configured on the inner side of the frame.

[0014] The roller assembly includes a driving roller and a guide roller. The driving roller is provided with two groups. The two groups of driving rollers are symmetrically arranged on both sides of the lower part of the frame and are rotatably connected to the frame through a transmission shaft. The guide roller is arranged at the lower part of one end of the frame corresponding to the handlebar and is rotatably connected to the frame through a rotating shaft.

[0015] The driving assembly includes a driving motor and a driving spindle. The driving motor is arranged on the inner side of one end of the frame and is fixedly connected to the frame. The driving spindle is arranged between the output end of the driving motor and the transmission shaft and its two ends are respectively connected to the output end of the driving motor and the transmission shaft.

[0016] The beneficial effects of the utility model are:

[0017] It is equipped with a flipping mechanism, which can realize the semi-flipping action of the carriage to quickly unload the goods in the carriage, thereby improving its unloading efficiency, meeting the requirements of rapid unloading during cargo transportation, and enriching its usage scenarios. It is equipped with a buffer mechanism and a bracket mechanism to provide buffer support for the carriage during the flipping and resetting process of the carriage, ensure the stability of the flipping process, and have a certain shock-absorbing function. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 This is a schematic diagram of the cooperation between the turning mechanism and the carriage of the utility model;

[0020] Figure 3 It is a schematic diagram of the cooperation between the buffer mechanism, the bracket mechanism and the shock-absorbing assembly of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the buffer mechanism of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the shock-absorbing component of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the bracket mechanism of the utility model;

[0024] Figure 7 It is a structural schematic diagram of an electric vehicle of the utility model.

[0025] In the figure: 1. Carriage; 2. Flip hydraulic cylinder; 3. Flip connecting seat; 4. Flip shaft; 5. Buffer hydraulic rod; 6. Buffer mounting seat; 7. Buffer spring; 8. Buffer support block; 9. Shock-absorbing base block; 10. Shock-absorbing support rod; 11. Shock-absorbing spring; 12. Lifting frame; 13. Lifting mounting plate; 14. Lifting mounting frame; 15. Lifting beam; 16. Frame; 17. Handlebar; 18. Driving roller; 19. Guide roller; 20. Driving motor; 21. Driving spindle. DETAILED DESCRIPTION

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0027] An electric freight tricycle with a flipping structure comprises an electric vehicle and a carriage 1, wherein the carriage 1 is arranged on the upper part of one side of the electric vehicle, and further comprises a flipping mechanism for flipping the carriage 1, a buffering mechanism for providing buffering support for the carriage 1, and a bracket mechanism for providing auxiliary lifting for the carriage 1. The flipping mechanism is assembled between the carriage 1 and the electric vehicle, the buffering mechanism is arranged on the inner side of the upper part of the electric vehicle corresponding to the carriage 1, and the bracket mechanism is arranged at the upper end of the buffering mechanism. The overall structural schematic diagram of the utility model is shown as follows Figure 1 shown.

[0028] The flipping mechanism includes a flipping hydraulic cylinder 2, a flipping connecting seat 3 and a flipping shaft 4. The flipping hydraulic cylinder 2 is arranged between the electric vehicle and the carriage 1 and one end of the flipping hydraulic cylinder is rotatably connected to the electric vehicle. The flipping hydraulic cylinder 2 is tilted at the bottom of one end of the carriage 1. The flipping connecting seat 3 is arranged at the bottom of one end of the carriage 1 corresponding to the flipping hydraulic cylinder 2 and is fixedly connected to the carriage 1. The output end of the flipping hydraulic cylinder 2 is rotatably connected to the flipping connecting seat 3. The flipping shaft 4 is arranged at the connection between the output end of the flipping hydraulic cylinder 2 and the flipping connecting seat 3 and passes through the output end of the flipping hydraulic cylinder 2 and the flipping connecting seat 3. The flipping connecting seat 3 is rotatably connected to the output end of the flipping hydraulic cylinder 2 through the flipping shaft 4. The flipping mechanism cooperates with the flipping hydraulic cylinder 2, the flipping connecting seat 3 and the flipping shaft 4. A flipping structure is formed to realize the semi-flipping action of the carriage 1, wherein the flipping hydraulic cylinder 2 is used to realize the semi-flipping action of the carriage 1 through the telescopic action of its output end, the flip connecting seat 3 is used as the mounting connection structure at the bottom of the carriage 1, and the flip shaft 4 is used to realize the rotational connection between the flipping hydraulic cylinder 2 and the flip connecting seat 3, thereby realizing the rotational connection between the flipping hydraulic cylinder 2 and the carriage 1. When the carriage 1 needs to be flipped, the output end of the flipping hydraulic cylinder 2 is controlled to extend by the electric control part of the electric vehicle, so as to lift up the end of the carriage 1 close to the front of the vehicle. The carriage 1 is flipped with its rotational connection with the rear end of the frame 16 as the base point, so that the goods in the carriage 1 can be quickly unloaded. The schematic diagram of the cooperation between the flipping mechanism of the utility model and the carriage 1 is shown in FIG. Figure 2 shown.

[0029] The buffer mechanism includes a buffer hydraulic rod 5, a buffer mounting seat 6, a buffer spring 7 and a buffer support block 8. The buffer hydraulic rod 5 is arranged on the inner side of the upper part of the electric vehicle and is located at the bottom of the car body 1. The buffer hydraulic rod 5 is arranged vertically. The buffer mounting seat 6 is arranged on the upper part of the buffer hydraulic rod 5 and is fixedly connected to the buffer hydraulic rod 5. The buffer spring 7 is arranged at the bottom of the buffer mounting seat 6 and is arranged on the outer side of the buffer hydraulic rod 5 via the buffer mounting seat 6 and the support sleeve. The buffer support block 8 is arranged at the output end of the buffer hydraulic rod 5 and is fixedly connected to the output end of the buffer hydraulic rod 5. The buffer mechanism cooperates with the buffer hydraulic rod 5, the buffer mounting seat 6, the buffer spring 7 and the buffer support block 8 to provide buffer support for the bracket mechanism, thereby During the flipping and resetting process, a buffer support is provided for the carriage 1, wherein the buffer hydraulic rod 5 is used to provide a buffer support for the bracket mechanism, and the buffer mounting seat 6 is used as a mounting structure on the buffer hydraulic rod 5 to install and connect the buffer spring 7 with the buffer hydraulic rod 5, thereby providing an installation support for the buffer spring 7, and the buffer spring 7 is used as an elastic buffer structure on the outside of the buffer hydraulic rod 5, thereby forming a composite buffer structure together with the buffer hydraulic rod 5, effectively improving the buffering effect of the buffer mechanism, and the buffer support block 8 is used as a mounting structure at the output end of the buffer hydraulic rod 5, thereby realizing the installation connection between the buffer mechanism and the bracket mechanism. The schematic diagram of the cooperation between the buffer mechanism of the utility model, the bracket mechanism and the shock-absorbing assembly is shown in FIG. Figure 3shown.

[0030] There are two groups of buffer mechanisms, which are symmetrically arranged at the bottom of the carriage 1. The schematic diagram of the buffer mechanism structure of the utility model is as follows: Figure 4 shown.

[0031] It also includes a shock-absorbing component, which includes a shock-absorbing base block 9, a shock-absorbing support rod 10 and a shock-absorbing spring 11. The shock-absorbing base block 9 is provided with two groups, and the two groups of shock-absorbing base blocks 9 are arranged in parallel and spaced between the electric vehicle and the bottom of the carriage 1. The shock-absorbing support rod 10 is provided with two groups, and the two groups of shock-absorbing support rods 10 are respectively arranged on the opposite side of the two groups of shock-absorbing base blocks 9 and are fixedly connected to the corresponding shock-absorbing base blocks 9. There is a spacing between the two groups of shock-absorbing support rods 10. The shock-absorbing spring 11 is arranged between the two groups of shock-absorbing base blocks 9 and its two ends are respectively fixedly connected to the two groups of shock-absorbing base blocks 9. The shock-absorbing spring 11 is sleeved on the two groups of shock-absorbing support rods 10, the shock-absorbing assembly cooperates with the shock-absorbing base block 9, the shock-absorbing support rod 10 and the shock-absorbing spring 11, and cooperates with the buffer mechanism to provide elastic shock-absorbing support for the bracket mechanism, wherein the shock-absorbing base block 9 is used to provide installation support for the shock-absorbing support rod 10 and the shock-absorbing spring 11, and the shock-absorbing support rod 10 is used as a support rod structure inside the shock-absorbing base block 9, which can limit the shock-absorbing mechanism while preventing the shock-absorbing spring 11 from getting stuck, and the shock-absorbing spring 11 is used to elastically connect the two groups of shock-absorbing base blocks 9, thereby providing elastic shock-absorbing support for the bracket mechanism. The schematic diagram of the structure of the shock-absorbing assembly of the utility model is shown in Figure 5 shown.

[0032] The bracket mechanism includes a lifting frame 12, a lifting mounting plate 13 and a lifting mounting frame 14. The lifting frame 12 is arranged at the upper end of the buffer mechanism. The lifting frame 12 is located at the bottom of the carriage 1. There are two groups of lifting mounting plates 13. The two groups of lifting mounting plates 13 are symmetrically arranged on both sides of the interior of the lifting frame 12 and are fixedly connected to the lifting frame 12. The buffer support blocks 8 in the two groups of buffer mechanisms are respectively fixedly connected to the two groups of lifting mounting plates 13. The lifting mounting frame 14 is arranged in the middle of the inner side of the lifting frame 12 and is fixedly connected to the lifting frame 12. The shock-absorbing base block 9 located above is fixedly connected to the bottom of the lifting mounting frame 14. The bracket mechanism is connected to the upper end of the buffer mechanism. The auxiliary bracket structure is formed by the cooperation of the lifting frame 12, the lifting mounting plate 13 and the lifting mounting frame 14 to provide buffer support for the car 1 during the flipping and resetting process under the action of the buffer mechanism and the shock-absorbing assembly, wherein the bracket frame is used as a frame structure in the bracket structure, thereby providing installation support for the lifting mounting plate 13 and the lifting mounting frame 14, the lifting mounting plate 13 is used as a mounting structure on the inner side of the bracket structure, thereby providing installation support for the buffer mechanism, and the lifting mounting frame 14 is used as a mounting structure in the middle of the bracket structure, thereby providing installation support for the shock-absorbing assembly. The schematic diagram of the bracket mechanism structure of the utility model is shown in FIG. Figure 6 shown.

[0033] It also includes a lifting beam 15, which is provided with several groups. The several groups of lifting beams 15 are respectively arranged between the lifting frame 12, the lifting mounting plate 13 and the lifting mounting frame 14. The lifting frame 12, the lifting mounting plate 13, the lifting mounting frame 14 and the lifting beams 15 together constitute a frame-type support structure. The frame-type support structure is arranged at the bottom of the car 1 through a buffer mechanism and a shock-absorbing component, wherein the lifting beams 15 are used as the beam structure on the inner side of the lifting frame 12, thereby improving the strength and stability of the bracket structure.

[0034] The electric vehicle comprises a frame 16, a handlebar 17, a roller assembly and a driving assembly. The frame 16 is arranged at the bottom of the carriage 1 and is mounted on the ground via the roller assembly. The carriage 1 is arranged at the upper part of the frame 16 and one end thereof away from the tilting hydraulic cylinder 2 is rotatably connected to the frame 16 via a rotating shaft. The buffer hydraulic rod 5 and the shock absorbing base block 9 located below are arranged at the upper part of the frame 16 and are fixedly connected to the frame 16. The handlebar 17 is arranged at one end of the frame 16 and is rotatably connected to the frame 16. The roller assembly is arranged at the lower part of the frame 16. The driving assembly is arranged on the frame 1 6, the electric vehicle is combined with a frame 16, a handlebar 17, a roller assembly and a drive assembly to form an electric tricycle for pulling goods, wherein the frame 16 is used as the frame structure of the electric vehicle, the handlebar 17 is used as the direction control part on the frame 16, and the direction of the guide roller 19 can be controlled by the handlebar 17, thereby controlling the forward direction of the electric tricycle, the roller assembly is used to provide mobile support for the electric vehicle, and the drive assembly is used to provide driving force for the roller assembly, thereby driving the electric vehicle to move through the roller assembly. The structural schematic diagram of the electric vehicle of the utility model is shown in FIG. Figure 7 shown.

[0035] The roller assembly includes a driving roller 18 and a guide roller 19. The driving roller 18 is provided with two groups. The two groups of driving rollers 18 are symmetrically arranged on both sides of the lower part of the frame 16 and are rotatably connected to the frame 16 through a transmission shaft. The guide roller 19 is arranged at the lower part of one end of the frame 16 corresponding to the handlebar 17 and is rotatably connected to the frame 16 through a rotating shaft. The roller assembly cooperates with the driving roller 18 and the guide roller 19 to form the roller part of the electric vehicle, wherein the driving roller 18 is used to rotate under the action of the driving assembly, thereby driving the electric vehicle to move, and the guide roller 19 is used to control the forward direction of the electric vehicle under the action of the handlebar 17.

[0036] The driving assembly includes a driving motor 20 and a driving spindle 21. The driving motor 20 is arranged on the inner side of one end of the frame 16 and is fixedly connected to the frame 16. The driving spindle 21 is arranged between the output end of the driving motor 20 and the transmission shaft, and its two ends are respectively connected to the output end of the driving motor 20 and the transmission shaft. The driving assembly cooperates with the driving motor 20 and the driving spindle 21 to form a driving part of the electric vehicle, thereby driving the driving roller 18 to rotate, wherein the driving motor 20 is used to drive the driving spindle 21 to rotate through its output end, thereby providing a driving wheel for the electric vehicle to move forward, and the driving spindle 21 is used to drive the driving roller 18 to rotate under the action of the driving motor 20, thereby realizing the movement of the electric vehicle.

[0037] Working principle:

[0038] When it is necessary to unload the goods in the carriage 1 quickly, the output end of the flipping hydraulic cylinder 2 is controlled to extend by the electronic control part of the electric vehicle, so that the end of the carriage 1 close to the front of the vehicle is lifted up, and the carriage 1 is flipped with its rotation connection with the rear end of the frame 16 as the base point, so that the goods in the carriage 1 can be quickly unloaded. After unloading is completed, the output end of the flipping hydraulic cylinder 2 is controlled to shorten by the electronic control part, and the carriage 1 is flipped and reset with its rotation connection with the rear end of the frame 16 as the base point. During the reset process, the bracket mechanism provides buffer support for the carriage 1 under the action of the buffer mechanism and the shock-absorbing component, thereby ensuring the stability of the flipping and reset of the carriage 1 and avoiding damage caused by rigid collision.

[0039] The beneficial effect of the utility model is that it is provided with a flipping mechanism, which can realize the semi-flipping action of the carriage to quickly unload the goods in the carriage, thereby improving its unloading efficiency, meeting the requirements of rapid unloading during cargo transportation, and enriching its usage scenarios. It is provided with a buffer mechanism and a bracket mechanism to cooperate with the carriage to provide buffer support for the carriage during the flipping and resetting process of the carriage, ensure the stability of the flipping process, and have a certain shock-absorbing function.

[0040] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. An electric freight tricycle with a flip structure, comprising an electric vehicle and a carriage (1), wherein the carriage (1) is arranged on an upper side of the electric vehicle, and is characterized in that: It also includes a turning mechanism for turning over the carriage (1), a buffer mechanism for providing buffer support for the carriage (1), and a bracket mechanism for providing auxiliary lifting for the carriage (1), the turning mechanism being assembled between the carriage (1) and the electric vehicle, the buffer mechanism being arranged on the inner side of the upper part of the electric vehicle corresponding to the carriage (1), and the bracket mechanism being arranged at the upper end of the buffer mechanism; The flip mechanism comprises a flip hydraulic cylinder (2), a flip connection seat (3) and a flip shaft (4); the flip hydraulic cylinder (2) is arranged between the electric vehicle and the carriage (1) and one end of the flip hydraulic cylinder is rotatably connected to the electric vehicle; the flip hydraulic cylinder (2) is arranged obliquely at the bottom of one end of the carriage (1); the flip connection seat (3) is arranged at the bottom of one end of the carriage (1) corresponding to the flip hydraulic cylinder (2) and is fixedly connected to the carriage (1); the output end of the flip hydraulic cylinder (2) is rotatably connected to the flip connection seat (3); the flip shaft (4) is arranged at the connection between the output end of the flip hydraulic cylinder (2) and the flip connection seat (3) and passes through the output end of the flip hydraulic cylinder (2) and the flip connection seat (3); the flip connection seat (3) is rotatably connected to the output end of the flip hydraulic cylinder (2) through the flip shaft (4).

2. The electric cargo tricycle with a flip structure as claimed in claim 1, characterized in that: The buffer mechanism comprises a buffer hydraulic rod (5), a buffer mounting seat (6), a buffer spring (7) and a buffer support block (8); the buffer hydraulic rod (5) is arranged on the inner side of the upper part of the electric vehicle and is located at the bottom of the vehicle compartment (1); the buffer hydraulic rod (5) is arranged vertically; the buffer mounting seat (6) is arranged on the upper part of the buffer hydraulic rod (5) and is fixedly connected to the buffer hydraulic rod (5); the buffer spring (7) is arranged at the bottom of the buffer mounting seat (6) and is sleeved on the outer side of the buffer hydraulic rod (5) via the buffer mounting seat (6) and a support; the buffer support block (8) is arranged at the output end of the buffer hydraulic rod (5) and is fixedly connected to the output end of the buffer hydraulic rod (5).

3. The electric cargo tricycle with a flip structure as claimed in claim 2, characterized in that: Two groups of buffer mechanisms are provided, and the two groups of buffer mechanisms are symmetrically arranged at the bottom of the carriage (1).

4. The electric cargo tricycle with a flip structure as claimed in claim 3, characterized in that: The invention also comprises a shock absorbing component, which comprises a shock absorbing base block (9), a shock absorbing support rod (10) and a shock absorbing spring (11). The shock absorbing base block (9) is provided with two groups, and the two groups of shock absorbing base blocks (9) are arranged in parallel and spaced apart between the electric vehicle and the bottom of the vehicle compartment (1). The shock absorbing support rod (10) is provided with two groups, and the two groups of shock absorbing support rods (10) are respectively arranged on opposite sides of the two groups of shock absorbing base blocks (9) and fixedly connected to the corresponding shock absorbing base blocks (9). A spacing is left between the two groups of shock absorbing support rods (10). The shock absorbing spring (11) is arranged between the two groups of shock absorbing base blocks (9) and its two ends are respectively fixedly connected to the two groups of shock absorbing base blocks (9). The shock absorbing spring (11) is sleeved on the outer sides of the two groups of shock absorbing support rods (10).

5. The electric cargo tricycle with a flip structure as claimed in claim 4, characterized in that: The bracket mechanism comprises a lifting frame (12), a lifting mounting plate (13) and a lifting mounting frame (14); the lifting frame (12) is arranged at the upper end of the buffer mechanism; the lifting frame (12) is located at the bottom of the carriage (1); two groups of the lifting mounting plates (13) are provided; the two groups of the lifting mounting plates (13) are symmetrically arranged on both sides of the interior of the lifting frame (12) and are fixedly connected to the lifting frame (12); the buffer support blocks (8) in the two groups of buffer mechanisms are respectively fixedly connected to the two groups of the lifting mounting plates (13); the lifting mounting frame (14) is arranged in the middle of the inner side of the lifting frame (12) and is fixedly connected to the lifting frame (12); the shock-absorbing base block (9) located above is fixedly connected to the bottom of the lifting mounting frame (14).

6. The electric cargo tricycle with a flip structure as claimed in claim 5, characterized in that: It also includes a lifting crossbeam (15), wherein the lifting crossbeam (15) is provided with a plurality of groups, wherein the plurality of groups of the lifting crossbeams (15) are respectively arranged between the lifting frame (12), the lifting mounting plate (13) and the lifting mounting frame (14), wherein the lifting frame (12), the lifting mounting plate (13), the lifting mounting frame (14) and the lifting crossbeam (15) together constitute a frame-type support structure, and the frame-type support structure is arranged at the bottom of the carriage (1) through a buffer mechanism and a shock-absorbing component.

7. The electric cargo tricycle with a flip structure as claimed in claim 6, characterized in that: The electric vehicle comprises a frame (16), a handlebar (17), a roller assembly and a drive assembly. The frame (16) is arranged at the bottom of the vehicle body (1) and is mounted on the ground via the roller assembly. The buffer hydraulic rod (5) and the shock absorbing base block (9) located below are arranged on the upper part of the frame (16) and are fixedly connected to the frame (16). The handlebar (17) is arranged at one end of the frame (16) and is rotatably connected to the frame (16). The roller assembly is arranged at the lower part of the frame (16), and the drive assembly is arranged on the inner side of the frame (16).

8. The electric cargo tricycle with a flip structure as claimed in claim 7, characterized in that: The roller assembly comprises a driving roller (18) and a guide roller (19), wherein the driving roller (18) is provided with two groups, the two groups of driving rollers (18) are symmetrically arranged on both sides of the lower part of the frame (16) and are rotatably connected to the frame (16) through a transmission shaft, and the guide roller (19) is arranged at the lower part of one end of the frame (16) corresponding to the handlebar (17) and is rotatably connected to the frame (16) through a rotating shaft.

9. The electric cargo tricycle with a flip structure as claimed in claim 8, characterized in that: The driving assembly comprises a driving motor (20) and a driving spindle (21); the driving motor (20) is arranged on the inner side of one end of the frame (16) and is fixedly connected to the frame (16); the driving spindle (21) is arranged between the output end of the driving motor (20) and the transmission shaft, and its two ends are respectively connected to the output end of the driving motor (20) and the transmission shaft.

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