Electric roller skate

Abstract

The invention relates to the technical field of human traffic tools, in particular to an electric roller skate which comprises a bottom plate and roller supports, the bottom of the bottom plate is vertically provided with two sets of roller supports, sliding grooves are formed in the positions, close to the two ends, of the interior of the bottom plate, and a rotatable rear wheel supporting shaft is inserted into the sliding grooves in the left ends of the roller supports; a rotatable front wheel supporting shaft is inserted into a sliding groove in the right end of each pulley support, the front wheel supporting shaft and the rear wheel supporting shaft are rotationally connected with the bottom plate through a recovery locking mechanism, pulleys are assembled at the front ends and the rear ends of the front wheel supporting shaft and the rear wheel supporting shaft, notches are formed in the wide portions of the middles of the two pulley supports, and electric control boxes are arranged in the notches. Power is provided through the driving motor, the power is transmitted to the pulley through the bevel gear and the belt wheel transmission system, retracting and locking of the pulley are achieved through the retracting and locking mechanism, intelligent control and monitoring are achieved through the control system, and the device has the advantages of being simple in structure, small in size, convenient to operate and control, safe and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of personal transportation means, and more particularly, to an electric roller skate. Background Art

[0002] Roller skates, commonly known as inline skates, are special shoes equipped with wheels for sliding on hard surfaces. They originated in the Netherlands and have a history of hundreds of years. Initially used as a competition tool, they have now developed into a popular form of leisure and entertainment. Roller skates are not only a sports equipment but also a form of leisure and entertainment. They can help people exercise, improve balance and coordination, and also contribute to cultivating emergency response ability and thinking flexibility. In addition, roller skates are an environmentally friendly way of traveling and are suitable for short-distance commuting in the city.

[0003] Traditional roller skates rely on the user's physical strength to drive forward, which is not only laborious but also limited in speed and endurance. Although there are some electric roller skate products on the market, most of them are complex in structure, large in size, inconvenient to operate, and still need to be improved in terms of safety.

[0004] In view of this, the present invention provides an electric roller skate to solve the above problems. Summary of the Invention

[0005] In view of the above deficiencies in the prior art, the present invention aims to provide an electric roller skate with simple structure, small size, convenient operation, safety and reliability.

[0006] To achieve the above object, the technical solution adopted by the present invention is as follows: An electric roller skate comprises a base plate and a pulley bracket, wherein two groups of pulley brackets are vertically arranged at the bottom of the base plate, and the pulley brackets are fixedly connected to the base plate, the two groups of pulley brackets are narrow at both ends and wide in the middle, and slide grooves are provided inside the pulley brackets near both ends, a rotatable rear wheel support shaft is inserted in the slide groove at the left end of the pulley bracket, and a rotatable front wheel support shaft is inserted in the slide groove at the right end, the front wheel support shaft and the rear wheel support shaft are both rotatably connected to the base plate through a recovery locking mechanism, pulleys are installed at the front and rear ends of the front wheel support shaft and the rear wheel support shaft, and a groove is provided in the middle wide part of the two groups of pulley brackets A notch is provided with an electric control box inside the notch, the electric control box is fixedly connected to the bottom plate, a power supply and a controller are installed inside the electric control box, a drive motor is provided on the left side of the electric control box, the drive motor is installed between two sets of motor brackets, the motor bracket is fixedly connected to the bottom plate, an active bevel gear is assembled on the output end of the drive motor, a driven bevel gear is meshingly connected to the outer side of the active bevel gear, the driven bevel gear is rotatably connected to the motor bracket through a drive shaft, a driving pulley is also assembled on the drive shaft, a driven pulley is assembled on the rear wheel support shaft, and the driven pulley is connected to the active pulley through a belt drive.

[0007] Preferably, the pulley bracket is fixedly connected to the base plate by screws and nuts, the electric control box is fixedly connected to the base plate by screws and nuts, and the motor bracket is fixedly connected to the base plate by screws and nuts.

[0008] Furthermore, the recovery locking mechanism includes a fixed seat, a locking frame, a retracting rod, a bearing cover 1, a bearing bracket, an adjusting shaft 1, an adjusting shaft 2, a bearing cover 2 and a rolling bearing. The fixed seat is fixed to the bottom of the base plate, and a bearing bracket is provided on the lower side of the fixed seat. The bearing bracket is clamped and connected with bearing cover 1 and bearing cover 2. A rolling bearing is assembled inside the bearing cover 2. The rolling bearing is sleeved on the corresponding support shaft. The upper end of the bearing bracket is connected to the fixed seat through the adjusting shaft 2. The front end of the adjusting shaft 2 is fixedly connected with the adjusting shaft 1. The adjusting shaft 1 is sleeved with a retracting rod, and the adjusting shaft 1 outside the retracting rod is sleeved with a locking frame.

[0009] Preferably, the fixing seat is fixed to the bottom of the base plate by screws and nuts.

[0010] Furthermore, the annular surface of the adjusting shaft 1 is a polygonal structure, and the locking frame and the retracting rod are provided with polygonal through holes adapted to the adjusting shaft 1, and the locking frame and the retracting rod are plug-connected with the adjusting shaft 1 via the polygonal through holes.

[0011] Furthermore, a T-shaped slide seat is fixedly provided at the bottom of the fixing seat near the front end, a slider matched with the slide seat is fixedly provided at the upper end of the locking frame, and the locking frame is detachably connected to the slide seat on the fixing seat via the slider.

[0012] Furthermore, the slide groove is an arc-shaped structure, the center of which is located on the same axis as the adjustment shaft, and the angle thereof is 45°.

[0013] Furthermore, a right-angle connecting plate is provided at the connection between the outer side of the pulley bracket and the bottom plate, and two side edges of the right-angle connecting plate are fixedly connected to the pulley bracket and the bottom plate respectively.

[0014] Preferably, both side edges of the right-angle connecting plate are fixedly connected to the pulley bracket and the bottom plate respectively by screws and nuts.

[0015] Furthermore, the driving motor is a micro DC motor, the transmission ratio between the active bevel gear and the driven bevel gear is 1:2, and the transmission ratio between the active pulley and the driven pulley is 1:2.

[0016] Furthermore, the controller is provided with a main control chip, a speed sensor, a wireless communication module and a gyroscope sensor. The speed sensor is used to monitor the moving speed of the roller skates, the main control chip is used to receive the speed sensor signal and control the operation of the drive motor, the wireless communication module is used to realize communication with external devices, and the gyroscope sensor is used to monitor the tilt state of the roller skates.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention adopts a driving motor as a power source, and transmits power to the rear wheel support shaft through a bevel gear and pulley transmission system to drive the pulley thereon to rotate, thereby driving the roller skates forward. Through a reasonable setting of the gear and pulley transmission ratio, efficient power transmission is achieved. The design of a transmission ratio of 1:2 increases the torque at the output end, thereby driving the support shaft to drive the pulley to rotate and realize the movement of the roller skates.

[0018] 2. The present invention can adjust the position of the pulley through the recovery locking mechanism set up, thereby changing the overall size of the roller skates, thereby facilitating the carrying and use of the roller skates. The recovery locking mechanism is responsible for firmly locking the front wheel support shaft or the rear wheel support shaft on the pulley bracket, and is also convenient for quick release and adjustment when needed. When the recovery locking mechanism is actually used, when the pulley needs to be retracted, the adjustment shaft 1 and the adjustment shaft 2 are rotated by toggling the retracting rod to drive the bearing bracket to move up, thereby causing the entire rear wheel support shaft or the front wheel support shaft to slide up 45° along the slide groove, and then the locking frame is matched with the slide seat of the fixed seat base to lock the adjustment shaft and fix the position of the support shaft and the pulley. When the roller skates need to be used, the locking frame and the slide seat are released, the locking frame is pulled out of the slide seat, the support shaft is adjusted downward to move 45° along the slide groove, so that the pulley is at the lowest position, and then the locking frame is inserted into the slide seat to fix the adjustment shaft 1 and the position of the support shaft and the pulley is fixed.

[0019] 3. The controller of the present invention is internally provided with a main control chip, a speed sensor, a wireless communication module, and a gyroscope sensor. The speed sensor is used to monitor the moving speed of the roller skates. The main control chip is used to receive the speed sensor signal and control the driving motor to work. The wireless communication module is used to realize communication with external devices. The gyroscope sensor is used to monitor the tilting state of the roller skates. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a bottom view of the present invention.

[0022] Figure 3 It is a schematic diagram of the bottom structure of the present invention.

[0023] Figure 4 It is a schematic diagram of the structure after removing the bottom plate in the present invention.

[0024] Figure 5 It is a schematic diagram of the partial disassembled structure of the present invention.

[0025] Figure 6 It is a schematic diagram of the partial structure of the present invention.

[0026] Figure 7 It is a schematic diagram of the structure of the recycling and locking mechanism in the present invention.

[0027] Figure 8 It is a schematic diagram of the structure of the recycling and locking mechanism from another angle in the present invention.

[0028] Figure 9 It is a partial cross-sectional view of the recycling and locking mechanism in the present invention.

[0029] In the figure: 1. Bottom plate; 2. Screw; 3. Pulley; 4. Pulley bracket; 5. Front wheel support shaft; 6. Electric control box; 7. Nut; 8. Driving motor; 9. Recycling and locking mechanism; 91. Fixed seat; 92. Locking frame; 93. Retracting and extending rod; 94. Bearing cover one; 95. Bearing bracket; 96. Adjusting shaft one; 97. Adjusting shaft two; 98. Bearing cover two; 99. Rolling bearing; 10. Rear wheel support shaft; 11. Right-angle connecting plate; 12. Chute; 13. Notch; 14. Controller; 15. Power supply; 16. Motor bracket; 17. Driving bevel gear; 18. Driven bevel gear; 19. Driving shaft; 20. Driving pulley; 21. Belt; 22. Driven pulley. DETAILED DESCRIPTION OF THE INVENTION

[0030] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] Example: like Figures 1 to 9 As shown, an electric roller skate comprises a bottom plate 1 and a pulley bracket 4. Two groups of pulley brackets 4 are vertically arranged at the bottom of the bottom plate 1, and the pulley brackets 4 are fixedly connected to the bottom plate 1 by screws 2 and nuts 7. The two groups of pulley brackets 4 are narrow at both ends and wide in the middle, which not only ensures the stability of the structure but also effectively reduces the volume. There are slide grooves 12 arranged near both ends inside the pulley brackets 4. A rotatable rear wheel support shaft 10 is inserted in the slide groove 12 at the left end of the pulley bracket 4, and a rotatable front wheel support shaft 5 is inserted in the slide groove 12 at the right end. The front wheel support shaft 5 and the rear wheel support shaft 10 are both rotatably connected to the bottom plate 1 through a recovery locking mechanism 9. The recovery locking mechanism 9 is used to lock and adjust the front wheel support shaft 5 and the rear wheel support shaft 10, thereby realizing the recovery of the pulley 3 and reducing the structural volume of the roller skates. The front wheel support shaft 5 and the rear wheel support shaft 10 are both equipped with pulleys 3 at the front and rear ends. A slot 13 is opened in the middle wide part of the two sets of pulley brackets 4. An electric control box 6 is arranged inside the slot 13. The electric control box 6 is fixedly connected to the bottom plate 1 through screws 2 and nuts 7. A screw 2 is provided inside the electric control box 6. A power supply 15 and a controller 14 are installed. A driving motor 8 is provided on the left side of the electric control box 6. The driving motor 8 is installed between two sets of motor brackets 16. The motor bracket 16 is fixedly connected to the bottom plate 1 through screws 2 and nuts 7. An active bevel gear 17 is installed on the output end of the driving motor 8. The outer side of the active bevel gear 17 is meshed and connected with a driven bevel gear 18. The driven bevel gear 18 is rotatably connected to the motor bracket 16 through a driving shaft 19. A driving pulley 20 is also installed on the driving shaft 19. A driven pulley 22 is installed on the rear wheel support shaft 10. The driven pulley 22 is connected to the active pulley 20 through a belt 21, and the driving motor 8 transmits power to the rear wheel support shaft 10 through a bevel gear and pulley transmission system to drive the pulley 3 thereon to rotate, thereby driving the roller skates forward. This design solves the problem that the existing pulley 3 shoes rely on the user's physical strength to drive forward, which is not only laborious, but also limited in speed and poor in endurance. Although there are some electric roller skates products on the market, most of them have complex structures, large sizes, inconvenient operation, and still need to be improved in terms of safety.

[0032] In this embodiment, the recovery locking mechanism 9 includes a fixed seat 91, a locking frame 92, a retracting rod 93, a bearing cover 1 94, a bearing bracket 95, an adjusting shaft 1 96, an adjusting shaft 2 97, a bearing cover 2 98 and a rolling bearing 99. The fixed seat 91 is fixed to the bottom of the base plate 1 by screws 2 and nuts 7. A bearing bracket 95 is provided on the lower side of the fixed seat 91. The bearing bracket 95 is clamped and connected with the bearing cover 1 94 and the bearing cover 2 98. The bearing cover 2 98 is equipped with a rolling bearing 99. The rolling bearing 99 is sleeved on the corresponding support shaft. The upper end of the bearing bracket 95 is connected to the fixed seat 91 through the adjusting shaft 2 97. The front end of the adjusting shaft 2 97 is fixedly connected with the adjusting shaft 1 96. The adjusting shaft 1 96 is sleeved with the retracting rod 93, and the adjusting shaft 1 96 outside the retracting rod 93 is sleeved with the locking frame 92. The recovery locking mechanism 9 is responsible for firmly locking the front wheel support shaft 5 or the rear wheel support shaft 10 on the pulley bracket 4, and is also convenient for quick release and adjustment when needed. When the recovery locking mechanism 9 is actually used, when the pulley 3 needs to be retracted, the adjustment shaft 1 96 and the adjustment shaft 2 97 are rotated by toggling the retracting rod 93, the bearing bracket 95 is driven to move up, so that the entire rear wheel support shaft 10 or the front wheel support shaft 5 slides up 45° along the slide groove 12, and then the locking frame 92 is matched with the slide seat of the base of the fixed seat 91 to lock the adjustment shaft and fix the position of the support shaft and the pulley 3. When the roller skates need to be used, the locking frame 92 and the slide seat are released, the locking frame 92 is pulled out of the slide seat, the support shaft is adjusted downward to move 45° along the slide groove 12, so that the pulley 3 is at the lowest position, and then the locking frame 92 is inserted into the slide seat to fix the adjustment shaft 1 96 and then the support shaft and the pulley 3.

[0033] In this embodiment, the ring surface of the adjustment shaft 1 96 is a polygonal structure, and the locking frame 92 and the retracting rod 93 are provided with polygonal through holes adapted to the adjustment shaft 1 96, and the locking frame 92 and the retracting rod 93 are connected to the adjustment shaft 1 96 through the polygonal through holes. The polygonal through holes and the polygonal structure of the adjustment shaft 1 96 are engaged with each other, ensuring the stable connection of the locking frame 92 and the retracting rod 93 on the adjustment shaft 1 96, preventing them from loosening or falling off during use, and at the same time being able to lock the adjustment shaft 1 96, so as to achieve precise adjustment of the adjustment shaft 1 96.

[0034] In this embodiment, a slide seat with a T-shaped structure is fixedly installed at the bottom of the fixed seat 91 near the front end, and a slider adapted to the slide seat is fixedly installed at the upper end of the locking frame 92. The locking frame 92 is detachably connected to the slide seat on the fixed seat 91 through the slider. This design enables the locking frame 92 to be detachably connected to the slide seat on the fixed seat 91 through the slider, ensuring both the stability of the connection and the convenience of subsequent disassembly. Through the cooperation of the slider and the slide seat, the locking frame 92 can be easily installed on the fixed seat 91 without additional fasteners or tools. When it is necessary to disassemble the locking frame 92, simply pulling the slider can separate the locking frame 92 from the fixed seat 91, facilitating subsequent operations.

[0035] In this embodiment, the chute 12 has an arc-shaped structure, the center of which is on the same axis as the adjusting shaft 96, and its angle is 45°. This design enables the locking frame 92 to maintain a constant relative position with respect to the adjusting shaft 96 while moving smoothly along the chute 12 at a certain angle. At the same time, the arc-shaped design of the chute 12 provides a smoother moving path, reducing the friction and resistance during the movement of the locking frame 92.

[0036] In this embodiment, a right-angled connecting plate 11 is provided at the connection between the outer side of the pulley 3 bracket and the bottom plate 1. Both sides of the right-angled connecting plate 11 are respectively fixed to the pulley bracket 4 and the bottom plate 1 through screws 2 and nuts 7. The design of the right-angled connecting plate 11 makes the connection between the pulley bracket 4 and the bottom plate 1 more stable, capable of effectively resisting external forces and preventing the structure from loosening or deforming. At the same time, the right-angled connecting plate 11 also provides additional support, enhancing the rigidity and stability of the entire structure.

[0037] In this embodiment, the drive motor 8 is a micro DC motor. Selecting a micro DC motor as the drive source has the advantages of small size, light weight, high power density, and easy control. The transmission ratio of the driving bevel gear 17 to the driven bevel gear 18 is 1:2. The bevel gear transmission is used to change the transmission direction and simultaneously increase or decrease the speed. A transmission ratio of 1:2 means that the rotational speed of the driven bevel gear 18 is half that of the driving bevel gear 17, while the torque increases accordingly. The transmission ratio of the driving pulley 20 to the driven pulley 22 is 1:2. Belt transmission has the characteristics of smoothness, low noise, and the ability to buffer shocks and vibrations. A transmission ratio of 1:2 also means that the rotational speed of the driven pulley 22 is half that of the driving pulley 20, and the torque increases. Through the reasonable setting of the gear and pulley transmission ratios, efficient power transmission is achieved. The design with a transmission ratio of 1:2 increases the torque at the output end, thereby driving the support shaft to drive the pulley 3 to rotate and realizing the movement of the roller skates.

[0038] In this embodiment, the controller 14 is internally provided with a main control chip, a speed sensor, a wireless communication module and a gyroscope sensor. The speed sensor is used to monitor the moving speed of the roller skates, the main control chip is used to receive the speed sensor signal and control the operation of the drive motor 8, the wireless communication module is used to realize communication with external devices, and the gyroscope sensor is used to monitor the tilt state of the roller skates.

[0039] The working principle of this electric roller skate: The driving motor 8 uses a micro DC motor as a power source, and outputs rotational power when started. The output end of the driving motor 8 is equipped with a driving bevel gear 17, which is meshed and transmission-connected with a driven bevel gear 18. The driven bevel gear 18 is rotationally connected to the motor bracket 16 through a driving shaft 19, and a driving pulley 20 is also installed on the driving shaft 19. A driven pulley 22 is installed on the rear wheel support shaft 10, and the driven pulley 22 is connected to the driving pulley 20 through a belt 21. Therefore, the rotational power of the driving motor 8 changes direction through the bevel gear transmission system, and is transmitted to the rear wheel support shaft 10 through the pulley transmission system, driving the pulley 3 thereon to rotate, thereby driving the roller skates forward; When the pulley 3 needs to be retracted, the adjusting shaft 1 96 and the adjusting shaft 2 97 are rotated by toggling the retracting rod 93. The rotation of the adjusting shaft 2 97 drives the bearing bracket 95 to move upward, so that the entire rear wheel support shaft 10 or the front wheel support shaft 5 slides up 45° along the slide groove 12, and then the pulley 3 is retracted to the bottom position of the base plate 1, reducing the structural volume of the roller skates and making it easier to carry. The arc-shaped structure of the slide groove 12 and the design of being coaxial with the adjusting shaft 1 96 ensure the smoothness and stability of the locking frame 92 during movement. The slider on the locking frame 92 cooperates with the slide seat on the fixed seat 91 to lock the adjusting shaft, thereby fixing the position of the support shaft and the pulley 3. When the roller skates need to be used, the operation is reversed to release the cooperation between the locking frame 92 and the slide seat, and the support shaft is adjusted downward so that the pulley 3 is at the lowest position, and then the locking frame 92 is locked; The main control chip inside the controller 14 receives the signal from the speed sensor and monitors the moving speed of the roller skates in real time. According to the preset logic or user input received through the wireless communication module, the main control chip controls the operation of the drive motor 8, such as starting, stopping, accelerating, decelerating, etc. The gyroscope sensor monitors the tilt state of the roller skates and provides posture information to the control system, which helps to maintain the balance of the roller skates and achieve a specific movement mode. The wireless communication module realizes communication with external devices, such as smart phones, remote controls, etc., through which users can remotely control the roller skates or obtain their movement data.

[0040] In the event of an emergency brake, the main control chip immediately reverses the polarity of the drive motor 8, achieves rapid braking through reverse torque, and implements electronic braking. When the gyroscope sensor detects abnormal tilt, it automatically triggers the electronic brake and reduces the motor power to prevent rollover.

[0041] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, based on the above description, other different forms of changes or variations can be made. It is impossible to enumerate all the implementation manners here. Any obvious changes or variations derived from the technical solutions of the present invention still fall within the protection scope of the present invention.

Claims

1. An electric roller skate, characterized in that: The invention comprises a bottom plate (1) and a pulley bracket (4), wherein two groups of pulley brackets (4) are vertically arranged at the bottom of the bottom plate (1), and the pulley brackets (4) are fixedly connected to the bottom plate (1), the two groups of pulley brackets (4) are of a structure with narrow ends and wide middle, and slide grooves (12) are arranged inside the pulley brackets near both ends, a rotatable rear wheel support shaft (10) is inserted into the slide groove (12) at the left end of the pulley bracket (4), and a rotatable front wheel support shaft (5) is inserted into the slide groove (12) at the right end, the front wheel support shaft (5) and the rear wheel support shaft (10) are both rotatably connected to the bottom plate (1) through a recovery locking mechanism (9), and pulleys (3) are installed at the front and rear ends of the front wheel support shaft (5) and the rear wheel support shaft (10), and a notch (13) is arranged in the middle wide part of the two groups of pulley brackets (4), and an electric control box is arranged inside the notch (13). (6), the electric control box (6) is fixedly connected to the base plate (1), a power supply (15) and a controller (14) are installed inside the electric control box (6), a drive motor (8) is provided on the left side of the electric control box (6), the drive motor (8) is installed between two groups of motor brackets (16), the motor bracket (16) is fixedly connected to the base plate (1), an active bevel gear (17) is mounted on the output end of the drive motor (8), the outer side of the active bevel gear (17) is meshingly connected to a driven bevel gear (18), the driven bevel gear (18) is rotatably connected to the motor bracket (16) through a drive shaft (19), the drive shaft (19) is also equipped with a driving pulley (20), the rear wheel support shaft (10) is equipped with a driven pulley (22), and the driven pulley (22) is connected to the active pulley (20) through a belt (21).

2. The electric roller skates according to claim 1, characterized in that: The recovery locking mechanism (9) comprises a fixing seat (91), a locking frame (92), a retracting rod (93), a bearing cover 1 (94), a bearing bracket (95), an adjustment shaft 1 (96), an adjustment shaft 2 (97), a bearing cover 2 (98) and a rolling bearing (99), wherein the fixing seat (91) is fixed to the bottom of the base plate (1), a bearing bracket (95) is provided on the lower side of the fixing seat (91), and the bearing bracket (95) is internally clamped and connected with the bearing cover 1 (94) and the bearing cover 2. (98), a rolling bearing (99) is mounted inside the bearing cover (98), and the rolling bearing (99) is sleeved on a corresponding support shaft. The upper end of the bearing bracket (95) is connected to the fixed seat (91) through the adjusting shaft (97), and the front end of the adjusting shaft (97) is fixedly connected to the adjusting shaft (96), and the adjusting shaft (96) is sleeved with a retractable rod (93), and the adjusting shaft (96) outside the retractable rod (93) is sleeved with a locking frame (92).

3. The electric roller skates according to claim 2, characterized in that: The annular surface of the adjusting shaft one (96) is a polygonal structure, and the locking frame (92) and the retracting rod (93) are both provided with polygonal through holes that are compatible with the adjusting shaft one (96), and the locking frame (92) and the retracting rod (93) are plug-connected with the adjusting shaft one (96) via the polygonal through holes.

4. The electric roller skates according to claim 3, characterized in that: A T-shaped sliding seat is fixedly provided at the bottom of the fixed seat (91) near the front end, and a sliding block adapted to the sliding seat is fixedly provided at the upper end of the locking frame (92). The locking frame (92) is detachably connected to the sliding seat on the fixed seat (91) via the sliding block.

5. The electric roller skates according to claim 2, characterized in that: The slide groove (12) is an arc-shaped structure, the center of which is located on the same axis as the adjustment shaft (96), and the angle is 45°.

6. The electric roller skates according to claim 1, characterized in that: A right-angle connecting plate (11) is provided at the connection between the outer side of the pulley bracket (4) and the bottom plate (1), and two side edges of the right-angle connecting plate (11) are respectively fixedly connected to the pulley bracket (4) and the bottom plate (1).

7. The electric roller skates according to claim 1, characterized in that: The driving motor (8) is a micro DC motor, the transmission ratio between the driving bevel gear (17) and the driven bevel gear (18) is 1:2, and the transmission ratio between the driving pulley (20) and the driven pulley (22) is 1:

2.

8. The electric roller skates according to claim 1, characterized in that: The controller (14) is internally provided with a main control chip, a speed sensor, a wireless communication module and a gyroscope sensor. The speed sensor is used to monitor the moving speed of the roller skates. The main control chip is used to receive the speed sensor signal and control the operation of the drive motor (8). The wireless communication module is used to realize communication with external equipment. The gyroscope sensor is used to monitor the tilt state of the roller skates.

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