Electric bicycle with motor convenient to replace

Abstract

The utility model discloses an electric bicycle with a motor convenient to replace, which belongs to the technical field of electric bicycles and comprises a frame, two wheels are rotatably mounted on the frame, a grip is movably connected to the frame, a fixing frame is fixedly arranged on the frame, a base is fixedly arranged at the top of the fixing frame, and a motor is fixedly arranged on the base. A first motor base and a second motor base are movably arranged in a base at the same time, motors are installed on the two motor bases, the motor on the second motor base is a main motor, and when the motors need to be replaced, a power source is started to drive one rotating rod to rotate; therefore, the process of automatically replacing the motor on the second motor base and the motor on the first motor base is achieved, the effects of conveniently replacing the motor and simplifying the electric shock replacement process are achieved, in addition, through mutual cooperation of a positioning plate and a limiting plate, the stability of connection between the motor and a motor connector in the running process is ensured, and the service life of the motor is prolonged. And potential safety hazards caused by loose connection are prevented.

Description

Technical Field

[0001] This utility model relates to the field of electric bicycle technology, specifically to an electric bicycle with an easy-to-replace motor. Background Technology

[0002] Currently, electric bicycles, with their environmentally friendly, economical, and convenient features, have become an important choice for short-distance travel in modern cities. They not only effectively alleviate urban traffic congestion but also reduce carbon emissions and protect the environment. Whether for daily commutes, leisure trips, or short shopping trips, electric bicycles offer an easy and comfortable riding experience.

[0003] For example, patent CN108082369A discloses an electric bicycle and its components, including a bicycle body and a drive mechanism mounted on the bicycle body. The drive mechanism includes a motor body, a transmission mechanism, and a driven member. The motor body is mounted on the frame of the bicycle body, and the driven member is coaxially arranged with the rear wheel hub of the bicycle body. The motor body can drive the transmission mechanism to rotate, thereby driving the driven member to rotate the rear wheel of the bicycle body. This electric bicycle provides people with a means of transportation and facilitates their outings.

[0004] In the aforementioned patent, the motor adopts a fixed connection design. Although the structure is compact, the fixed connection method makes the replacement process cumbersome when the motor is damaged or needs repair. In addition, no spare motor is provided. Once the main motor fails, the lack of a spare motor will cause trouble and inconvenience to the user during emergency travel or long-distance riding, affecting the flexibility and reliability of the electric bicycle and limiting its applicability in various usage scenarios.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0006] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide an electric bicycle with an easy-to-replace motor, achieving the effects of quick motor replacement and improved connection stability.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is: an electric bicycle that facilitates motor replacement, including a frame, two wheels rotatably mounted on the frame, a handlebar movably connected to the frame, a fixed frame fixedly mounted on the frame, a base fixedly mounted on the top of the fixed frame, a first motor mount and a second motor mount slidably mounted inside the base, a motor connector mounted on the base, and a housing rotatably connected to the top of the base;

[0008] The base is fixedly connected to a guide plate, and two symmetrically arranged rotating rods are rotatably installed inside the guide plate. Both ends of the two rotating rods are connected to a chain belt through a sprocket. A guide rod is slidably arranged inside the guide plate, and two pull rods are fixedly connected to each of the two chain belts.

[0009] Furthermore, the bottom of the first motor base is fixedly provided with four slide rods arranged in an array at equal intervals, and the four slide rods are slidably sleeved on the base plate. The bottom of the first motor base is fixedly connected with two symmetrically arranged connecting plates.

[0010] The two ends of the guide plate are fixedly connected to one side of the two connecting plates respectively. The bottom plate has a through hole that passes through it, and the two connecting plates and the guide rod all pass through the inside of the through hole.

[0011] Furthermore, the top end of the pull rod is fixedly installed at the bottom of the second motor base and the first motor base, respectively. The top of the first motor base and the second motor base are each fixedly installed with two symmetrically arranged side plates. A push rod is slidably installed inside each of the two side plates. One end of the push rod is fixedly connected to a push block, and the other end of the push rod is fixedly connected to a limit plate. One side of the push block and one side of the side plate are connected to a telescopic spring, which is sleeved on the outside of the push rod.

[0012] Furthermore, two symmetrically arranged positioning plates are fixedly installed on the base, with one side of the positioning plates being inclined.

[0013] Furthermore, the base has an internal mounting groove, and the first motor base, the second motor base, and the guide plate are all located inside the mounting groove.

[0014] Furthermore, the guide plate has a guide groove inside, and the guide rod is slidably connected inside the guide groove.

[0015] The beneficial effects of this application are as follows: by simultaneously movably setting a first motor base and a second motor base inside the base, with motors installed on both motor bases, the motor on the second motor base being the main motor. When the motor needs to be replaced, the power is turned on to drive one of the rotating rods to rotate, thereby realizing the automatic replacement process of the motor on the second motor base and the motor on the first motor base. This achieves the effect of facilitating motor replacement and simplifying the electric shock replacement process. In addition, the cooperation between the positioning plate and the limiting plate ensures the stability of the connection between the motor and the motor connector during operation, preventing safety hazards caused by loose connections. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0019] Figure 3 This is a schematic diagram of the internal structure of the base of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the first motor base of this utility model;

[0021] Figure 5 This is a schematic diagram of the guide plate connection mechanism of this utility model;

[0022] Figure 6 This is a schematic diagram of the internal structure of the base of this utility model.

[0023] In the diagram: 1. Frame; 2. Wheel; 3. Handlebar; 4. Mount; 5. Base; 6. Outer shell; 7. First motor mount; 8. Second motor mount; 9. Limiting plate; 10. Guide groove; 11. Motor connector; 12. Side plate; 13. Push block; 14. Telescopic spring; 15. Base plate; 16. Slide rod; 17. Guide plate; 18. Connecting plate; 19. Guide rod; 20. Chain belt; 21. Rotating rod; 22. Positioning plate; 23. Pull rod. Detailed Implementation

[0024] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0025] like Figure 1-6 As shown, this application provides an electric bicycle with an easy-to-replace motor, including a frame 1, two wheels 2 rotatably mounted on the frame 1, a handlebar 3 movably connected to the frame 1, a fixed frame 4 fixedly mounted on the frame 1, a base 5 fixedly mounted on the top of the fixed frame 4, a first motor mount 7 and a second motor mount 8 slidably mounted inside the base 5, a motor connector 11 mounted on the base 5, a housing 6 rotatably connected to the top of the base 5, a guide plate 17 fixedly connected inside the base 5, two symmetrically arranged rotating rods 21 rotatably mounted inside the guide plate 17, both ends of the two rotating rods 21 are connected to a chain belt 20 through a sprocket, a guide rod 19 slidably mounted inside the guide plate 17, and two pull rods 23 fixedly connected to each of the two chain belts 20.

[0026] like Figure 1-6As shown, four slide rods 16 arranged in an array at equal intervals are fixedly installed at the bottom of the first motor base 7. The four slide rods 16 are slidably sleeved on the base plate 15. Two symmetrically arranged connecting plates 18 are fixedly connected to the bottom of the first motor base 7. The two ends of the guide plate 17 are fixedly connected to one side of the two connecting plates 18 respectively. The base plate 15 has a through hole that passes through itself. The two connecting plates 18 and the guide rods 19 all pass through the inside of the through hole.

[0027] like Figure 1-6 As shown, the top of the pull rod 23 is fixedly installed at the bottom of the second motor base 8 and the first motor base 7 respectively. The top of the first motor base 7 and the second motor base 8 are both fixedly installed with two symmetrically arranged side plates 12. Push rods are slidably installed inside the two side plates 12. One end of the push rod is fixedly connected to a push block 13, and the other end of the push rod is fixedly connected to a limit plate 9. One side of the push block 13 and one side of the side plate 12 are connected to a telescopic spring 14. The telescopic spring 14 is sleeved on the outside of the push rod. Two symmetrically arranged positioning plates 22 are fixedly installed on the base 5. One side of the positioning plate 22 is inclined. The base 5 has an installation groove. The first motor base 7, the second motor base 8 and the guide plate 17 are all located inside the installation groove. The guide plate 17 has a guide groove 10 inside. The guide rod 19 is slidably connected inside the guide groove 10.

[0028] The working principle of this utility model is as follows: When the motor of the electric bicycle needs to be replaced, the built-in micro motor (model YH42BYGH47-401A) inside the base 5 is started first. The micro motor has a built-in power supply to drive its operation. After the micro motor is started, one of the rotating rods 21, which is coaxially fixedly connected through the coupling, rotates, thereby driving the two sprockets, the chain belt 20 and the other rotating rod 21 to rotate together. The pull rod 23 fixedly connected to the chain belt 20 also moves accordingly, and at the same time pulls the second motor seat 8 and the motor connected to it to slide away from the motor connector 11. At the same time, the first motor seat 7 also moves towards the motor connector 11 through the pull rod 23 connected between the bottom of the base 5 and the chain belt 20.

[0029] Furthermore, during the movement of the first motor base 7, the guide rod 19 is also driven to slide inside the guide groove 10. The guide groove 10 is designed as a three-section type, with the front and rear ends being horizontally opened and on the same horizontal line, and the middle section being an inverted trapezoidal opening. When the guide rod 19 slides to the middle section, it will slide downward first, and at the same time pull the connecting plate 18 fixedly connected to both ends of the guide rod 19 and the first motor base 7 to move downward together. At this time, the first motor base 7 is at the position where it intersects with the second motor base 8 vertically. At this time, the position of the second motor base 8 remains unchanged, and the first motor base 7 slides downward, thereby avoiding the collision between the top of the motor installed on the second motor base 8 and the bottom of the first motor base 7, thus preventing damage to the motor.

[0030] After the first motor mount 7 and the second motor mount 8 meet, the guide rod 19 moves to the rising part of the middle section, and the second motor mount 8 also returns to its original position and slides horizontally to one side of the motor connector 11 through the rear end until the motor connector 11 is fully connected to the motor connector 11, realizing convenient replacement of the motor and automatic docking of the spare motor, improving the applicability and convenience of the electric bicycle.

[0031] Furthermore, during the motor switching process, when the replaced motor moves to one side of the motor connector 11, the push blocks 13, which are movable on the left and right sides of the motor base, will contact and abut against the two positioning plates 22 respectively. The two positioning plates 22 will push the push blocks 13, and the push blocks 13 will simultaneously push the two limit plates 9 to slide through the push rod, thereby firmly clamping the motor and ensuring that the motor can reach the precise docking position when docking with the motor connector 11, thus playing a role in precise alignment. The two positioning plates 22 play a role in pre-positioning guidance, effectively avoiding the alignment deviation problem that may be caused by the motor connection and transportation on the motor base, thereby improving the stability and docking accuracy. The replaced motor can be taken out by the operator by turning and opening the outer casing 6.

[0032] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An electric bicycle with an easily replaceable motor, characterized in that, Includes a frame (1), on which two wheels (2) are rotatably mounted, and a handle (3) is movably connected to the frame (1). A fixed frame (4) is fixedly installed on the frame (1), and a base (5) is fixedly installed on the top of the fixed frame (4). A first motor seat (7) and a second motor seat (8) are slidably installed inside the base (5). A motor connector (11) is installed on the base (5), and a shell (6) is rotatably connected to the top of the base (5). The base (5) is fixedly connected to a guide plate (17). Two symmetrically arranged rotating rods (21) are rotatably installed inside the guide plate (17). Both ends of the two rotating rods (21) are fitted with a chain belt (20) through a sprocket. A guide rod (19) is slidably arranged inside the guide plate (17). Two pull rods (23) are fixedly connected to the two chain belts (20).

2. The electric bicycle with an easily replaceable motor according to claim 1, characterized in that: The bottom of the first motor base (7) is fixedly provided with four slide rods (16) arranged in an array at equal intervals. The four slide rods (16) are slidably sleeved on the base plate (15). The bottom of the first motor base (7) is fixedly connected with two symmetrically arranged connecting plates (18). The two ends of the guide plate (17) are fixedly connected to one side of the two connecting plates (18), and the bottom plate (15) has a through hole that passes through it. The two connecting plates (18) and the guide rod (19) all pass through the inside of the through hole.

3. The electric bicycle with an easily replaceable motor according to claim 2, characterized in that: The top of the pull rod (23) is fixedly installed at the bottom of the second motor base (8) and the first motor base (7), respectively. The top of the first motor base (7) and the second motor base (8) are both fixedly provided with two symmetrically arranged side plates (12). Push rods are slidably installed inside the two side plates (12). One end of the push rod is fixedly connected to a push block (13), and the other end of the push rod is fixedly connected to a limit plate (9). One side of the push block (13) and one side of the side plate (12) are connected to a telescopic spring (14), and the telescopic spring (14) is sleeved on the outside of the push rod.

4. The electric bicycle with an easily replaceable motor according to claim 2, characterized in that: Two symmetrically arranged positioning plates (22) are fixedly installed on the base (5), and one side of the positioning plate (22) is inclined.

5. The electric bicycle with an easily replaceable motor according to claim 1, characterized in that: The base (5) has an installation groove inside, and the first motor base (7), the second motor base (8) and the guide plate (17) are all located inside the installation groove.

6. The electric bicycle with an easily replaceable motor according to claim 1, characterized in that: The guide plate (17) has a guide groove (10) inside, and the guide rod (19) is slidably connected inside the guide groove (10).

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