Electric power-assisted side tricycle capable of being ridden on side seat

Abstract

The utility model discloses an electric power-assisted side tricycle riding on a side seat, which relates to the technical field of bicycles, and comprises a two-wheeled electric bicycle main body, a side wheel, a first connecting shaft, a transmission component, a support component, a longitudinal beam, a steering device, a seat mechanism and a solar panel, and the side wheel is detachably connected to one side of the two-wheeled electric bicycle main body; two ends of the first connecting shaft are connected with a first transmission assembly and a second transmission assembly; the two-wheeled electric bicycle body moves and drives the side wheels to move synchronously; the second transmission assembly drives the first transmission assembly through the first connecting shaft so that the two-wheel electric bicycle body can move, and the edge wheels follow the two-wheel electric bicycle body to achieve overall movement. The steering device is connected to the two-wheeled electric bicycle body and used for controlling the running direction. The seat mechanism is provided with a main seat and an auxiliary seat; the solar panel is positioned above the seat mechanism to provide electric power; the bicycle is optimized in structure, can be conveniently matched with different scenes for use, can supplement electricity at any time, can be assembled and disassembled, and is flexible and convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of bicycle technology, and in particular to an electric-assisted sidecar bicycle for riding on a side seat. Background Technology

[0002] Bicycles can be used as an environmentally friendly means of transportation for getting around. With social development, electric bicycles have gradually emerged. As a new generation of transportation, electric bicycles have many advantages such as energy saving, environmental protection, labor saving, and convenience.

[0003] The disadvantages of existing electric bicycles:

[0004] 1. Electric bicycles are mostly two-wheeled and can be used for transportation, but rarely have entertainment or leisure functions;

[0005] 2. Electric bicycles have range anxiety and need to be charged regularly, but they cannot be charged in time in places without charging equipment, which affects their use;

[0006] 3. Electric bicycles have a fixed structure, require a large amount of space, and are inconvenient to carry and transport.

[0007] Therefore, there is an urgent need to design an electric-assisted sidecar bicycle with a side seat, optimized structure, easy to match different scenarios for use, increased entertainment and improved user experience, easy to replenish power at any time to reduce charging burden, and flexible and convenient assembly and disassembly to overcome the shortcomings of existing technologies. Utility Model Content

[0008] The purpose of this invention is to provide an electric-assisted sidecar tricycle with an optimized structure that is easy to match for different scenarios, increases entertainment value and improves user experience, facilitates easy charging and reduces charging burden, and is flexible and convenient to assemble, disassemble and use while riding on the side seat.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] An electric-assisted sidecar bicycle for side-seat riding, comprising a two-wheeled electric bicycle body, the two-wheeled electric bicycle body having a front wheel, a rear wheel, a frame, a front fork, a rear chainstay, a rear top fork, a motor, a first transmission assembly, and a battery. The motor is mounted on the rear wheel, and the battery is mounted on the frame and provides power to the motor. The motor drives the rear wheel to rotate through the first transmission assembly, causing the front wheel to rotate synchronously to achieve the forward and backward movement of the two-wheeled electric bicycle body. It also includes:

[0011] Side wheel, the side wheel is located on one side of the rear wheel and is detachably connected to the rear chainstay via a side wheel axle;

[0012] A first connecting shaft, with a bushing mounted on its exterior;

[0013] One end of the first connecting shaft is connected to the first transmission assembly;

[0014] The other end of the first connecting shaft is connected to a second transmission assembly;

[0015] The two-wheeled electric bicycle body moves and drives the side wheels to move synchronously, or the second transmission component drives the first transmission component through the first connecting shaft to rotate the rear wheel, so that the front wheel and the side wheel follow each other to realize the movement of the three-wheeled bicycle.

[0016] A support assembly, which is distributed and connected to the frame, rear chain fork, side wheel axle and a portion of the bushing;

[0017] A longitudinal beam, which is vertically connected to a bushing and extends at one end and is fixedly connected to a support assembly;

[0018] A bumper is installed at the other end of the longitudinal beam;

[0019] A steering mechanism, wherein the steering mechanism is distributed and mounted on the front fork and the frame;

[0020] The seating mechanism has a secondary seat and a primary seat;

[0021] The secondary seat is mounted on the vehicle frame;

[0022] The main seat is located on one side of the secondary seat and is mounted on the side wheel axle and bushing via a support rod;

[0023] A solar panel is located above the seating mechanism and stores the converted electrical energy in a battery.

[0024] Furthermore, the support component includes:

[0025] A diagonal tie rod, the two ends of which are fixedly connected to the rear lower fork and the side wheel axle, respectively;

[0026] The rear lower fork, side wheel axle, and diagonal tie rod form a triangular structure.

[0027] One end of the longitudinal beam is fixedly connected to the diagonal tie rod;

[0028] The side wheel axle, the diagonal tie rod, the first connecting shaft, and the vehicle frame are each connected by a reinforcing rod.

[0029] The side wheel axle, tie rod, or first connecting shaft can be assembled in sections via a connecting sleeve.

[0030] Furthermore, the first transmission assembly and the second transmission assembly have the same structure;

[0031] The second transmission assembly includes one sprocket, a chain, and two sprockets;

[0032] One part of the sprocket is connected to the first connecting shaft;

[0033] The first part of the sprocket is driven by the meshing of the second part of the sprocket with the chain.

[0034] Furthermore, two bushings are welded below the longitudinal beam;

[0035] The two parts of the bushing are fitted onto the outside of the second connecting shaft;

[0036] The two ends of the second connecting shaft extend to the outside of the bushing and are connected to the crank.

[0037] A foot pedal is mounted on the crank;

[0038] The two sprockets are mounted on the second connecting shaft;

[0039] Stepping on the pedal and driving the second connecting shaft to rotate via the crank causes the two sprockets to rotate synchronously.

[0040] The two sprockets rotate and are driven by the chain to rotate synchronously on one of the sprockets;

[0041] One part of the sprocket rotates and forms a transmission connection with the first transmission assembly through the first connecting shaft.

[0042] Furthermore, the steering device includes:

[0043] A connecting rod, one end of which is fixedly connected to the front fork;

[0044] One part of the connecting rod is connected to the frame on the side via the other part of the connecting rod;

[0045] One end of the connecting rod is connected to three other connecting rods via a connecting sleeve;

[0046] The first steering wheel is rotatably connected to the three connecting rods via a shaft.

[0047] The second steering wheel is fixedly connected to the front fork;

[0048] The first steering wheel and the second steering wheel are located on the same horizontal plane;

[0049] A steering tie rod, the two ends of which are respectively hinged to a first steering wheel and a second steering wheel;

[0050] Handlebars, which are connected to a first steering wheel;

[0051] The handlebars pull the first steering wheel to rotate, and through the steering tie rod, drive the second steering wheel to rotate synchronously, forming left and right turns of the front wheels to control the direction of travel.

[0052] Furthermore, the support rods are distributed and connected to the side wheel axle and a portion of the bushing;

[0053] The main seat has through holes on its seat plate that correspond to the positions of the support rods;

[0054] The support rod is inserted into the through hole of the main seat and secured with bolts;

[0055] The front end of the passenger seat is connected to the vehicle frame via a hinge;

[0056] The rear end of the passenger seat is connected to the rear axle via a fixing rod;

[0057] The frame is equipped with a foot pedal for the person in the front passenger seat to step on.

[0058] Furthermore, a sleeve is connected to the side wheel shaft;

[0059] Two sleeves are installed on the bumper;

[0060] The sleeve has two arc-shaped buckle plates;

[0061] The arc-shaped buckle plate conforms to the outer periphery of the bumper and is fixed with screws;

[0062] Support rods are inserted into the first and second parts of the sleeve and fixed with screws;

[0063] The support rod extends upward and is connected to a support frame for mounting solar panels.

[0064] Furthermore, the support frame includes:

[0065] Rectangular frames and triangular frames;

[0066] Below the rectangular frame is a third sleeve section, corresponding to the positions of the first and second sleeve sections;

[0067] The top end of the support rod is inserted into the sleeve and fixed with screws.

[0068] Furthermore, the solar panel is mounted on the triangular frame using U-shaped screws.

[0069] In the above technical solution, the electric-assisted sidecar tricycle of this utility model, which is ridden on a side seat, has the following beneficial effects:

[0070] 1. This bicycle can carry two people at the same time and can be powered by electric assistance or manually pedaled, which can be switched according to the needs of different scenarios, increasing entertainment and improving the user experience;

[0071] 2. This bicycle can solve range anxiety. The battery can be charged by regular charging or supplemented by solar panels, so there is no need to worry about electricity. It provides continuous electric assistance and is easy to use.

[0072] 3. The bicycle has an optimized structure. The side wheels and the structure supporting the solar panels are detachable. It can be assembled at any time when in use and disassembled and stored when not in use, which can reduce storage space and make it easy to carry and transport when going out. Attached Figure Description

[0073] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0074] Figure 1 A schematic diagram of the structure of an electric-assisted sidecar bicycle with a side seat provided for an embodiment of the present invention (solar panel tilted to the right).

[0075] Figure 2 A schematic diagram of the structure of an electric-assisted sidecar bicycle with a side seat provided for an embodiment of the present utility model (solar panel tilted to the left).

[0076] Figure 3 A schematic diagram showing the installation position and structure of the support frame in an electric-assisted sidecar bicycle with a side seat, provided for an embodiment of this utility model;

[0077] Figure 4 A schematic diagram illustrating the positional structure of the main seat and the secondary seat in an electric-assisted sidecar bicycle for side-seat riding, provided for an embodiment of this utility model.

[0078] Figure 5 A schematic diagram showing the installation position and structure of the side wheel, second transmission assembly, and steering device in an electric-assisted sidecar bicycle with a side seat provided for an embodiment of the present utility model.

[0079] Figure 6 A schematic diagram of the structure of an electric-assisted sidecar bicycle (without electric assistance) for riding on a side seat, provided as an embodiment of this utility model.

[0080] Explanation of reference numerals in the attached figures:

[0081] 1. Main body of a two-wheeled electric bicycle; 2. Side wheel; 3. Side wheel axle; 4. First connecting shaft; 5. One axle sleeve; 6. Second transmission assembly; 7. Support assembly; 8. Longitudinal beam; 9. Bumper; 10. Steering device; 11. Seat mechanism; 12. Support rod; 13. Solar panel; 14. Connecting sleeve; 15. Two axle sleeves; 16. Second connecting shaft; 17. Crank; 18. Pedals; 19. One sleeve; 20. Two sleeves; 21. Support rod; 22. Support frame; 23. Three sleeves;

[0082] 601. One sprocket; 602. Chain; 603. Two sprockets;

[0083] 701. Diagonal tie rod; 702. Reinforcing rod;

[0084] 1001. Linkage 1; 1002. Linkage 2; 1003. Linkage 3; 1004. First steering wheel; 1005. Second steering wheel; 1006. Steering tie rod; 1007. Handlebar;

[0085] 1101. Passenger seat; 1102. Driver's seat; 1103. Hinges; 1104. Fixing rods; 1105. Foot pedals;

[0086] 2001, Curved snap-on panel;

[0087] 2201, Rectangular frame; 2202, Triangular frame. Detailed Implementation

[0088] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0089] It should be noted that the terms "external", "both ends", "one end", "the other end", "side", "top", "above", "front end", "rear end", etc. used in this document indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of describing this utility model and simplifying the description. Similar expressions are only for illustrative purposes and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0090] See Figure 1-6 As shown;

[0091] The electric-assisted sidecar bicycle is a sidecar bicycle that is ridden on a side seat. The sidecar bicycle includes a two-wheeled electric bicycle body 1. The two-wheeled electric bicycle body 1 adopts a conventional bicycle structure and has a front wheel, a rear wheel, a frame, a front fork, a rear chain fork, a rear top fork, a motor, a first transmission component, a battery, etc.

[0092] A side wheel 2 is added to the main body 1 of a two-wheeled electric bicycle. The side wheel 2 is located on one side of the rear wheel and is connected to the rear fork through the side wheel axle 3, thus becoming a three-wheeled bicycle. The side wheel axle 3 can be connected in sections, and the connection points are fixed by the connecting sleeve 14. The transmission between the main body 1 of the two-wheeled electric bicycle and the side wheel 2 is achieved through a first transmission component, a first connecting shaft 4, and a second transmission component 6. The first transmission component and the second transmission component 6 are respectively connected to the two ends of the first connecting shaft 4. The first transmission component is a conventional bicycle transmission method. When the first transmission component moves the main body 1 of the two-wheeled electric bicycle, the side wheel 2 will rotate along with the front wheel and the rear wheel, and the three-wheeled bicycle can move. When the second transmission component 6 drives the first transmission component in the opposite direction, the rear wheel rotates first during the transmission process of the first transmission component, and the front wheel and the side wheel 2 will also move, and the three-wheeled bicycle can also move. A bushing 5 is installed on the outside of the first connecting shaft 4, which is used to connect the two sets of transmission components. The first transmission component and the second transmission component 6 are connected to the body of the first connecting shaft 4.

[0093] Specifically, a support assembly 7 is installed in the tricycle. The support assembly 7 is used to stabilize the overall structure. The support assembly 7 has a diagonal tie rod 701 and multiple sets of reinforcing rods 702. The diagonal tie rod 701 is connected to the rear chainstay and the side wheel axle 3. One end of the multiple sets of reinforcing rods 702 is welded to the side wheel axle 3, the diagonal tie rod 701, and the first connecting shaft 4, respectively. The other end of the reinforcing rods 702 is welded to the frame. The rear chainstay, the side wheel axle 3, and the diagonal tie rod 701 form a triangular structure to better stabilize the vehicle body. At the same time, the diagonal tie rod 701 or the first connecting shaft 4... The axle 4 can be connected in sections, and the connection is fixed by the connecting sleeve 14. After disassembly, it is easy to store, reduce space occupation, and is also easy to be transported outdoors for use. A longitudinal beam 8 is welded to the outside of the axle sleeve 5. The longitudinal beam 8 is perpendicular to the axle sleeve 5, and one end of the longitudinal beam 8 is fixed to the reinforcing rod 702, while the other end gradually extends to be parallel to the two-wheeled electric bicycle body 1. The longitudinal beam 8 is connected to the bumper 9 at the end. In the three-wheeled bicycle, the bumper 9 is located at the front end, which can reduce the impact force in the event of a collision, avoid damage to the vehicle body, and protect the user's safety.

[0094] The tricycle has a steering device 10, which is distributed and installed on the front fork and frame; the tricycle has a seat mechanism 11, which has a secondary seat 1101 and a main seat 1102. The secondary seat 1101 is distributed on the main body 1 of the two-wheeled electric bicycle, and the main seat 1102 is installed above the side wheel axle 3. At this time, the tricycle can carry two people, and the direction can be controlled by the steering device 10 during the movement of the tricycle.

[0095] Furthermore, the tricycle is also equipped with a solar panel 13, which converts solar energy into electrical energy. The electrical energy converted by the solar panel 13 can be stored in the battery so that it can power the bicycle at any time. There is no need to worry about charging in places where there is no charging equipment, making it more convenient to use.

[0096] Preferably, a side wheel 2 is added to the main body 1 of a two-wheeled electric bicycle to transform it into a three-wheeled bicycle. The three-wheeled bicycle increases the space of the two-wheeled bicycle, allowing for the addition of a main seat 1102, thus enabling two people to ride on the three-wheeled bicycle simultaneously. The front end of the secondary seat 1101 is connected to the frame via a hinge 1103, and the rear end of the secondary seat 1101 is connected to the rear wheel axle via a fixing rod 1104. The main seat 1102 is located to the side of the secondary seat 1101 and between the rear wheel and the side wheel 2. A support rod 12 is welded to the side wheel axle 3 and the bushing part 5. The support rod 12 is used for... The main seat 1102 is supported and installed. The seat plate of the main seat 1102 has through holes corresponding to the positions of the support rod 12. During installation, the through holes on the main seat 1102 are matched with the support rod 12. The support rod 12 is inserted into the through holes, and then bolts are used to tighten from the seat plate of the main seat 1102 into the support rod 12, thereby installing and fixing the main seat 1102. When disassembly is required, the bolts are removed, and the main seat 1102 is separated from the support rod 12. The frame is equipped with a foot pedal 1105, which is provided for the person sitting on the passenger seat 1101 to step on.

[0097] The specific transmission process of an electric-assisted sidecar bicycle ridden on a side seat is as follows:

[0098] Firstly, the first transmission assembly and the second transmission assembly 6 adopt the same structure, both using sprockets and chains for meshing transmission. The second transmission assembly 6 includes a sprocket part 601, a chain 602, and a sprocket part 603. The sprocket part 601 is connected to one end of the first connecting shaft 4, and the other end of the first connecting shaft 4 is connected to a set of sprockets in the first transmission assembly. The two sets of sprockets can transmit power through the first connecting shaft 4. When the motor drives the first transmission assembly to work, it causes the rear wheel to rotate. At this time, the front wheel and the side wheel 2 move accordingly, and the tricycle can move back and forth. When the second transmission assembly 6 is driven by a driving force, it will also drive the first transmission assembly to move through the first connecting shaft 4. Specifically, there is a second connecting shaft 16 below the longitudinal beam 8, and a bushing part 15 is installed on the outside of the second connecting shaft 16. The longitudinal beam 8 and the bushing part 15... 15 is welded and fixed. The second connecting shaft 16 is connected to the second sprocket 603. The two ends of the second connecting shaft 16 extend to the outside of the bushing 15 and are connected to the crank 17. The crank 17 is equipped with pedals 18. When the user on the main seat 1102 steps on the pedals 18 (like riding a bicycle), the second sprocket 603 can be driven to rotate. The second sprocket 603 rotates and is engaged with the first sprocket 601 through the chain 602. At this time, the first sprocket 601 rotates and causes the first connecting shaft 4 to rotate. The first connecting shaft 4 rotates and drives the first transmission component. After the first transmission component is transmitted, the rear wheel rotates. At the same time, the front wheel and the side wheel 2 move accordingly. The whole tricycle can also move back and forth. The tricycle can be driven by electric power (motor drive) or by human pedaling.

[0099] The steering process of an electric-assisted sidecar bicycle ridden on the side seat is as follows:

[0100] The steering mechanism 10 is used to control the direction of travel of the tricycle. The steering mechanism 10 includes a first link 1001, a second link 1002, a third link 1003, a first steering wheel 1004, a second steering wheel 1005, a steering tie rod 1006, and a handlebar 1007. The second steering wheel 1005 is fixedly connected to the front fork. Rotating the second steering wheel 1005 will rotate the front wheel through the front fork, thereby causing the main body 1 of the two-wheeled electric bicycle to rotate in the correct direction. Furthermore, one end of the connecting rod 1001 is fixedly connected to the front fork, and the connecting rod 1001 is laterally connected to the frame via the connecting rod 2 1002. The other end of the connecting rod 1001 is connected to the connecting rod 3 1003 via the connecting sleeve 14. The first steering wheel 1004 is rotatably connected to the connecting rod 3 1003. A steering tie rod 1006 is connected between the first steering wheel 1004 and the second steering wheel 1005. The steering tie rod 1006 is hinged to the connecting rod 3 1003. The first steering wheel 1004 and the second steering wheel 1005 are connected together. The first steering wheel 1004 and the second steering wheel 1005 are located on the same horizontal plane. The first steering wheel 1004, the second steering wheel 1005, and the steering tie rod 1006 form a parallel four-bar linkage. The first steering wheel 1004 is also connected to the handlebar 1007. When the user turns the first steering wheel 1004 through the handlebar 1007, the first steering wheel 1004 drives the second steering wheel 1005 to turn in the same direction through the steering tie rod 1006. For example, if the user pulls the handlebar 1007 inward, the first steering wheel 1004 turns clockwise, and the second steering wheel 1005 turns clockwise, causing the tricycle wheels to turn to the right. If the user pushes the handlebar 1007 outward, the first steering wheel 1004 turns counterclockwise, and the second steering wheel 1005 turns counterclockwise, causing the tricycle wheels to turn to the left, thereby controlling the direction of travel of the tricycle.

[0101] The structure for mounting solar panel 13 is as follows:

[0102] The solar panel 13 is located above the tricycle. A certain distance needs to be maintained between the solar panel 13 and the user to avoid affecting its use. A first sleeve 19 and a second sleeve 20 are welded to the side wheel axle 3 and bumper 9, respectively. The structure of the second sleeve 20 is slightly different from that of the first sleeve 19. The second sleeve 20 has an arc-shaped fastener 2001, which is for installation with the bumper 9. The arc-shaped fastener 2001 can be fitted onto the bumper 9 according to its shape and then fixed with screws. A support rod 21 of a certain length is inserted into the second sleeve 20 and the first sleeve 19. The support rod 21 is also fixed to the second sleeve 20 and the first sleeve 19 with screws. The upper end of the support rod 21... A support frame 22 is connected, and the solar panel 13 is installed on the support frame 22. The support frame 22 includes a rectangular frame 2201 and a triangular frame 2202. The lower part of the rectangular frame 2201 is welded with a sleeve part 23 corresponding to the position of the sleeve part 19 and the sleeve part 20. The top of the support rod 21 is inserted into the sleeve part 23 and fixed with screws. The triangular frame 2202 has an angled top. The solar panel 13 is installed on the triangular frame 2202 by U-shaped screws. The solar panel 13 can be installed on the tilt surface according to the sun's direction in order to maximize the reception of solar energy. Using the solar panel 13 can replenish the power at any time, reduce range anxiety, and improve the user experience.

[0103] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An electric-assisted sidecar bicycle for riding on a side seat, the sidecar bicycle comprising a two-wheeled electric bicycle body (1), the two-wheeled electric bicycle body (1) having a front wheel, a rear wheel, a frame, a front fork, a rear lower fork, a rear upper fork, a motor, a first transmission assembly, and a battery, the motor being mounted on the rear wheel, the battery being mounted on the frame and providing power to the motor, the motor driving the rear wheel to rotate through the first transmission assembly to synchronously rotate the front wheel to achieve forward and backward movement of the two-wheeled electric bicycle body (1), characterized in that, Also includes: Side wheel (2), the side wheel (2) is located on one side of the rear wheel and is detachably connected to the rear lower fork via the side wheel axle (3); A first connecting shaft (4) is provided with a bushing (5) installed on its exterior. One end of the first connecting shaft (4) is connected to the first transmission assembly; The other end of the first connecting shaft (4) is connected to a second transmission assembly (6); The two-wheeled electric bicycle body (1) moves and drives the side wheel (2) to move synchronously, or the second transmission component (6) drives the first transmission component through the first connecting shaft (4) to the rear wheel to rotate, so that the front wheel and the side wheel (2) follow each other to realize the movement of the side tricycle; Support assembly (7), which is distributed and connected to the frame, rear lower fork, side wheel axle (3) and a bushing (5); The longitudinal beam (8) is vertically connected to a bushing part (5) and one end extends and is fixedly connected to the support assembly (7); A bumper (9) is installed at the other end of the longitudinal beam (8); Steering device (10), said steering device (10) is distributed and installed on the front fork and frame; Seating mechanism (11), the seating mechanism (11) having a secondary seat (1101) and a primary seat (1102); The secondary seat (1101) is mounted on the vehicle frame; The main seat (1102) is located on one side of the secondary seat (1101) and is mounted on the side wheel axle (3) and a bushing part (5) via a support rod (12); A solar panel (13) is located above the seat mechanism (11) and stores the converted electrical energy in a battery.

2. The electric-assisted sidecar bicycle with a side seat as described in claim 1, characterized in that, The support component (7) includes: Diagonal brace (701), the two ends of which are fixedly connected to the rear lower fork and the side wheel axle (3), respectively; The rear lower fork, side wheel axle (3), and diagonal tie rod (701) form a triangular structure. One end of the longitudinal beam (8) is fixedly connected to the diagonal tie rod (701); The side wheel axle (3), the diagonal tie rod (701), the first connecting shaft (4) and the frame are respectively connected by reinforcing rods (702); The side wheel axle (3), the tie rod (701), or the first connecting shaft (4) can be assembled in sections via the connecting sleeve (14).

3. The electric-assisted sidecar bicycle with a side seat as described in claim 1, characterized in that: The first transmission assembly and the second transmission assembly (6) have the same structure; The second transmission assembly (6) includes a sprocket part (601), a chain (602) and a sprocket part (603). One part of the sprocket (601) is connected to the first connecting shaft (4); The first sprocket (601) is driven by the chain (602) meshing with the second sprocket (603).

4. The electric-assisted sidecar bicycle with a side seat as described in claim 3, characterized in that: Two bushings (15) are welded below the longitudinal beam (8); The two bushings (15) are sleeved on the outside of the second connecting shaft (16); The two ends of the second connecting shaft (16) extend to the outside of the bushing (15) and are connected to the crank (17); The crank (17) is equipped with pedals (18); The two sprockets (603) are mounted on the second connecting shaft (16); Stepping on the pedal (18) and driving the second connecting shaft (16) to rotate via the crank (17) forms the two sprockets (603) rotating synchronously; The two sprockets (603) rotate and drive the first sprocket (601) to rotate synchronously through the chain (602); The sprocket part (601) rotates and forms a transmission connection with the first transmission assembly through the first connecting shaft (4).

5. The electric-assisted sidecar bicycle with a side seat as described in claim 2, characterized in that, The steering device (10) includes: A connecting rod part (1001), one end of which is fixedly connected to the front fork; The first connecting rod (1001) is connected to the frame on the side via the second connecting rod (1002); The other end of the connecting rod part (1001) is connected to the connecting rod part three (1003) via the connecting sleeve (14). The first steering wheel (1004) is rotatably connected to the connecting rod (1003) via a shaft; The second steering wheel (1005) is fixedly connected to the front fork; The first steering wheel (1004) and the second steering wheel (1005) are located on the same horizontal plane; A steering tie rod (1006) has its two ends hinged to a first steering wheel (1004) and a second steering wheel (1005), respectively. Handlebars (1007), said handlebars (1007) are connected to a first steering wheel (1004); The handlebars (1007) pull the first steering wheel (1004) to rotate, and through the steering tie rod (1006) drive the second steering wheel (1005) to rotate synchronously, forming the front wheel to turn left and right to control the direction of travel.

6. The electric-assisted sidecar bicycle with a side seat as described in claim 1, characterized in that: The support rod (12) is distributed and connected to the side wheel axle (3) and a bushing part (5); The main seat (1102) has through holes on its seat plate corresponding to the position of the support rod (12); The support rod (12) is inserted into the through hole of the main seat (1102) and fixed by bolts; The front end of the secondary seat (1101) is connected to the frame via a hinge (1103); The rear end of the secondary seat (1101) is connected to the rear wheel axle via a fixing rod (1104); The frame is equipped with a foot pedal (1105) for a person in the passenger seat (1101) to step on.

7. The electric-assisted sidecar bicycle with a side seat as described in claim 1, characterized in that: A sleeve (19) is connected to the side wheel shaft (3); The bumper (9) is equipped with two sleeves (20); The sleeve part (20) has an arc-shaped buckle plate (2001); The arc-shaped buckle plate (2001) conforms to the outer periphery of the bumper (9) and is fixed with screws; The support rod (21) is inserted into the first part (19) and the second part (20) of the sleeve and fixed by screws; The support rod (21) extends upward and is connected to a support frame (22) for mounting solar panels (13).

8. The electric-assisted sidecar bicycle with a side seat as described in claim 7, characterized in that, The support frame (22) includes: Rectangular frame (2201) and triangular frame (2202); Below the rectangular frame (2201) is a sleeve part (23) corresponding to the positions of sleeve part one (19) and sleeve part two (20). The top end of the support rod (21) is inserted into the sleeve three parts (23) and fixed by screws.

9. The electric-assisted sidecar bicycle with a side seat as described in claim 8, characterized in that: The solar panel (13) is mounted on the triangular frame (2202) by U-shaped screws.

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