Driving device of electric tricycle

Abstract

The invention relates to the field of driving, in particular to an electric tricycle driving device which comprises a transmission mechanism installed on a tricycle body, and a brake mechanism is arranged on the transmission mechanism and used for braking the transmission mechanism. The separating mechanism is used for separating the brake mechanism from the connecting mechanism; a clamping mechanism is arranged on the connecting mechanism and used for clamping and separating the connecting mechanism and the transmission mechanism. The wheels can be driven to walk through the arranged transmission mechanism, the brake mechanism arranged on the driving mechanism can limit power of the driving mechanism and can be separated from the driving mechanism, and power separation is achieved. When the brake mechanism is loosened, one part of the brake mechanism is separated from the transmission mechanism, so that the wheels are separated from the brake mechanism; and the other part of the brake mechanism is meshed with the transmission mechanism, so that stable transmission can be realized between the brake mechanism and the transmission mechanism.

Description

Technical Field

[0001] The invention relates to the field of driving, in particular to a driving device of an electric tricycle. Background Art

[0002] In the current electric tricycle technology field, the drive system and brake system are usually designed separately. The drive system mainly relies on the motor to realize the vehicle's driving power supply, while the braking method mainly includes a manually controlled brake device and a foot-operated brake device. However, this traditional design has exposed many problems in practical applications.

[0003] When the electric tricycle is braking, its drive mechanism remains connected to the wheels during the braking process, which means that in normal braking situations, the wheels are still affected by the force from the drive mechanism. Especially in emergency situations where rapid braking is required, this continuous power connection makes it impossible for the vehicle to quickly and effectively cut off power output, which greatly affects the efficiency and safety of braking and increases the possibility of dangerous situations during braking, such as collisions due to excessive braking distances, or vehicle loss of control due to unstable braking conditions.

[0004] In addition, there is also a more difficult problem in the maintenance of the brake components of electric tricycles. Even if the brake pads and brake drums of the tricycle are all replaced with new parts, abnormal noise problems often occur. After in-depth research and analysis, it was found that this phenomenon is largely caused by the wear and deformation of the brake pad bracket and the rocker arm after long-term use. Under ideal conditions without wear and deformation, when the brake is stepped on, the brake pad bracket should be able to maintain a parallel and vertical state, and accurately squeeze the brake pad by rotating up and down, so as to achieve a stable and effective braking effect. However, as the use time increases, the bracket gradually wears due to continuous pressure and friction, resulting in an unreasonable gap between it and the wheel. When the braking operation is performed, the bracket deforms under the action of force, and this deformation directly causes the brake pad bracket to be misaligned. When the brake pad bracket is released after the braking, because the bracket has been misaligned, it will hold the brake pad, resulting in an abnormal contact and friction state between the bracket and the outer brake drum. In this way, even a newly replaced bracket will suffer severe wear and tear within a short period of use, resulting in annoying noises, which will not only affect the normal use experience of the vehicle, but may also indicate potential safety hazards, such as the risk of brake failure due to excessive wear of the bracket. Summary of the invention

[0005] In view of the problems in the prior art, the present invention provides a driving device for an electric tricycle.

[0006] The technical solution adopted by the present invention to solve its technical problems is: the driving device of the electric tricycle includes a transmission mechanism installed on the vehicle body, the transmission mechanism is provided with a brake mechanism, and the brake mechanism is used to brake the transmission mechanism; the brake mechanism is provided with a separation mechanism, and the transmission mechanism is provided with a connecting mechanism, the transmission mechanism drives the connecting mechanism to rotate, the connecting mechanism is connected to the separation mechanism, and the separation mechanism is used to separate the brake mechanism and the connecting mechanism; the connecting mechanism is provided with a clamping mechanism, and the clamping mechanism is used to clamp and separate the connecting mechanism and the transmission mechanism.

[0007] Preferably, the transmission mechanism comprises a rear axle mounted on the vehicle body, a gear box is mounted on the rear axle, wheel hubs are arranged at both ends of the gear box, and a motor is arranged on the gear box.

[0008] Preferably, the connecting mechanism includes a transmission shaft arranged inside the rear axle, a support is arranged on the rear axle, and a first bearing is arranged on the support; an inner sleeve is arranged inside the first bearing, an inner cavity is arranged between the inner sleeve and the first bearing, a second elastic member is arranged inside the inner cavity, and the second elastic member is used to push the inner sleeve to reset; a moving rod is arranged on the inner sleeve, a giveway groove is arranged inside the moving rod, the moving rod slides inside the giveway groove, a square seat is arranged at the end of the moving rod, and the cross-section of the square seat is square; the square seat slides inside the separation mechanism.

[0009] Preferably, the separation mechanism includes a connecting seat arranged on the wheel hub, a clamping seat is arranged on the connecting seat, the cross-section of the clamping seat is a square structure, the square seat slides inside the clamping seat, the square seat drives the clamping seat to rotate, and a plurality of connecting grooves are arranged on the connecting seat, and the connecting grooves are connected to the wheel through bolts.

[0010] Preferably, the locking mechanism includes a rolling groove opened inside the transmission shaft, a locking seat is provided inside the transmission shaft, a locking block is provided inside the locking seat, a locking rod is provided at the end of the locking block, the locking rod is engaged with the block groove, a ball is provided on the locking block, and the ball slides inside the rolling groove, a pulling rod is provided on the locking rod, a pin groove is provided on the pulling rod, a locking seat is provided inside the transmission shaft, and a stabilizing pin is provided inside the locking seat; the pin groove slides on the stabilizing pin, connecting pins are provided at both ends of the pulling rod, a sliding rod is provided inside the inner sleeve, one end of the pull rod is connected to the sliding rod, a pushing block is provided on the sliding rod, the pushing block is a truncated cone structure, and the pushing block abuts against the brake mechanism; a third elastic member is provided on the locking rod, and the third elastic member is used to push the locking rod to reset.

[0011] Preferably, the brake mechanism includes a brake pad connected to the inside of the wheel hub, the end of the brake pad is connected to a fixing pin, the end of the brake pad is provided with a shift block, the shift block is provided with a bracket, the bracket is provided with a fixing sleeve, the bracket is provided with an extrusion block, an abutment rod is provided above the extrusion block, the abutment rod is provided with an abutment block, the abutment block is sleeved with a first elastic member, the first elastic member is used to push the abutment rod to reset, the end of the abutment rod is provided with an abutment block, and the abutment block is extruded by the shift block.

[0012] Preferably, the brake mechanism further comprises a tension spring connected to the two brake pads, a pull rod is arranged on the fixing sleeve, and a brake line is arranged on the pull rod.

[0013] Beneficial effects: 1. The transmission mechanism is provided to drive the wheels to move. The brake mechanism provided on the driving mechanism can not only limit the power of the driving mechanism, but also be separated from the driving mechanism to achieve power separation; the separation mechanism is connected to the wheels through the separation mechanism, and the separation mechanism can be driven to rotate synchronously through the connection mechanism. When the transmission mechanism rotates, the transmission mechanism drives the connection mechanism to rotate, the connection mechanism drives the separation mechanism to rotate, and the rotation of the separation mechanism drives the wheels to rotate; the connection mechanism and the transmission mechanism are connected through the engagement mechanism; when the engagement mechanism enters the transmission mechanism from the inside of the connection mechanism, a stable connection is achieved. When the brake mechanism is released, a part of the brake mechanism is separated from the transmission mechanism, so that the wheel and the brake mechanism are separated; the other part of the brake mechanism is engaged with the transmission mechanism, so that the brake mechanism and the transmission mechanism can be stably transmitted.

[0014] 2. The square seat can move synchronously with the inner sleeve. When the inner sleeve moves and separates from the engaging mechanism, the square seat and the inner sleeve can slide relative to each other. When the square seat and the inner sleeve move relative to each other, the transmission of the inner sleeve will not be affected. When the square seat and the inner sleeve rotate synchronously, the seat can still be driven to rotate, and the rotation of the seat drives the wheel to rotate.

[0015] 3. During the movement of the sliding rod, the card rod drives the card block to reset. When the card block just contacts the inner wall of the transmission shaft, the card block may not be able to just enter the inside of the block groove. Therefore, the ball will initially contact the inside of the rolling groove; the ball drives the card block to enter the inside of the rolling groove, and the ball plays a role of supporting the card block to prevent the card block from contacting the inner wall of the transmission shaft and causing wear to the card block; the set ball can play a good protective role.

[0016] 4. The shift block and the extrusion block are rotated simultaneously, so that the bracket rotates synchronously. Therefore, when the shift block and the extrusion block are subjected to force at the same time, the bracket can be subjected to force more evenly, thereby extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 for Figure 2 A is an enlarged structural diagram; Figure 4 It is one of the cross-sectional views of the present invention; Figure 5 for Figure 4 The enlarged structural diagram at B in FIG. Figure 6 is a schematic diagram of the separation mechanism of the present invention; Figure 7 It is a schematic diagram of the structure of the extrusion block of the present invention; Figure 8 It is a structural diagram of the transmission mechanism.

[0019] In the figure: 1. transmission mechanism; 11. motor; 12. gear box; 13. rear axle; 14. wheel hub; 2. brake mechanism; 21. brake line; 22. shift block; 23. tension spring; 24. brake pad; 25. fixing pin; 26. abutment rod; 27. abutment block; 28. first elastic member; 29. ​​extrusion block; 210. pull rod; 211. fixing sleeve; 212. bracket; 3. separation mechanism; 31. card seat; 32. connection seat; 33. connection groove; 4. connection mechanism; 41. Transmission shaft; 42. Square seat; 43. Moving rod; 44. Give way groove; 45. First bearing; 46. Second elastic member; 47. Inner cavity; 48. Inner sleeve; 49. Support; 5. Engaging mechanism; 51. Engaging rod; 52. Engaging block; 53. Ball; 54. Block groove; 55. Rolling groove; 56. Third elastic member; 57. Pull rod; 58. Pin groove; 59. Stabilizing pin; 510. Push block; 511. Sliding rod; 512. Engaging seat; 513. Connecting pin. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0021] In one embodiment, please refer to the attached manual. Figure 1-8As shown, the driving device of the electric tricycle described in the present invention includes a transmission mechanism 1 installed on the vehicle body, and the transmission mechanism 1 is provided with a brake mechanism 2, and the brake mechanism 2 is used to brake the transmission mechanism 1; the brake mechanism 2 is provided with a separation mechanism 3, and the transmission mechanism 1 is provided with a connecting mechanism 4, the transmission mechanism 1 drives the connecting mechanism 4 to rotate, the connecting mechanism 4 is connected to the separation mechanism 3, and the separation mechanism 3 is used to separate the brake mechanism 2 and the connecting mechanism 4; the connecting mechanism 4 is provided with a clamping mechanism 5, and the clamping mechanism 5 is used to clamp and separate the connecting mechanism 4 and the transmission mechanism 1.

[0022] The transmission mechanism 1 is provided to drive the wheels to move, and the brake mechanism 2 provided on the driving mechanism can not only limit the power of the driving mechanism, but also be separated from the driving mechanism to achieve power separation; the separation mechanism 3 is connected to the wheels through the provided separation mechanism 3, and the separation mechanism 3 can be driven to rotate synchronously through the provided connection mechanism 4. When the transmission mechanism 1 rotates, the transmission mechanism 1 drives the connection mechanism 4 to rotate, the connection mechanism 4 drives the separation mechanism 3 to rotate, and the rotation of the separation mechanism 3 drives the wheels to rotate; the connection mechanism 4 and the transmission mechanism 1 are connected through the provided engagement mechanism 5; when the engagement mechanism 5 enters from the inside of the connection mechanism 4 into the inside of the transmission mechanism 1, a stable connection is achieved. When the brake mechanism 2 is released, a part of the brake mechanism 2 is separated from the transmission mechanism 1, so that the wheel and the brake mechanism 2 are separated; the other part of the brake mechanism 2 is meshed with the transmission mechanism 1, so that the brake mechanism 2 and the transmission mechanism 1 can be stably transmitted.

[0023] The transmission mechanism 1 includes a rear axle 13 mounted on a vehicle body, a gear box 12 is mounted on the rear axle 13 , hubs 14 are disposed at both ends of the gear box 12 , and a motor 11 is disposed on the gear box 12 .

[0024] When the motor 11 rotates, the motor 11 drives the gear box 12 (existing technology, no further description is given here) to transmit, and the rotation of the gear box 12 drives the connecting mechanism 4 to rotate.

[0025] The connecting mechanism 4 includes a transmission shaft 41 arranged inside the rear axle 13, a support 49 is arranged on the rear axle 13, and a first bearing 45 is arranged on the support 49; an inner sleeve 48 is arranged inside the first bearing 45, an inner cavity 47 is arranged between the inner sleeve 48 and the first bearing 45, a second elastic member 46 is arranged inside the inner cavity 47, and the second elastic member 46 is used to push the inner sleeve 48 to reset; a moving rod 43 is arranged on the inner sleeve 48, a yield groove 44 is arranged inside the moving rod 43, and the moving rod 43 slides inside the yield groove 44, and a square seat 42 is arranged at the end of the moving rod 43, and the cross-section of the square seat 42 is square; the square seat 42 slides inside the separation mechanism 3.

[0026] The inner sleeve 48 is moved by the arrangement, and the inner sleeve 48 slides inside the first bearing 45. Preferably, a guide block (not shown in the figure) is arranged on the inner sleeve 48, and a guide groove is arranged inside the first bearing 45, and the guide block slides inside the guide groove (not shown in the figure); a second elastic member 46 is arranged on the inner sleeve 48, and when the inner sleeve 48 moves, the second elastic member 46 is compressed, and at the same time, the square seat 42 slides inside the separation mechanism 3.

[0027] The separation mechanism 3 includes a connecting seat 32 arranged on the wheel hub 14, and a clamping seat 31 is arranged on the connecting seat 32. The cross-section of the clamping seat 31 is a square structure. The square seat 42 slides inside the clamping seat 31, and the square seat 42 drives the clamping seat 31 to rotate. A plurality of connecting grooves 33 are arranged on the connecting seat 32, and the connecting grooves 33 are connected to the wheel through bolts.

[0028] The square seat 42 is arranged to move synchronously with the inner sleeve 48. When the inner sleeve 48 moves and separates from the engaging mechanism 5, the square seat 42 and the inner sleeve 48 can slide relative to each other. When the square seat 42 and the inner sleeve 48 move relative to each other, the transmission of the inner sleeve 48 is not affected. When the square seat 42 and the inner sleeve 48 rotate synchronously, the clamping seat 31 can still be driven to rotate, and the rotation of the clamping seat 31 drives the wheel to rotate.

[0029] The engaging mechanism 5 includes a rolling groove 55 opened inside the transmission shaft 41, a locking seat 512 is provided inside the transmission shaft 41, a clamping block 52 is provided inside the locking seat 512, a clamping rod 51 is provided at the end of the clamping block 52, the clamping rod 51 is engaged with the block groove 54, a ball 53 is provided on the clamping block 52, and the ball 53 slides inside the rolling groove 55, a pulling rod 57 is provided on the clamping rod 51, and a pin groove 58 is provided on the pulling rod 57, the locking seat 512 is provided inside the transmission shaft 41, and the clamping A stabilizing pin 59 is provided inside the seat 512; the pin groove 58 slides on the stabilizing pin 59, connecting pins 513 are provided at both ends of the pull rod 57, a sliding rod 511 is provided inside the inner sleeve 48, one end of the pull rod 210 is connected to the sliding rod 511, and a pushing block 510 is provided on the sliding rod 511. The pushing block 510 is a truncated cone structure, and the pushing block 510 abuts against the brake mechanism 2; a third elastic member 56 is provided on the clamping rod 51, and the third elastic member 56 is used to push the clamping rod 51 to reset.

[0030] The brake mechanism 2 is provided to squeeze the push block 510, and the push block 510 moves to drive the sliding rod 511 to move synchronously. The sliding rod 511 moves to drive multiple pulling rods 57 to move. The pulling rod 57 moves to pull the clamping rod 51 to move. The clamping rod 51 moves to drive the clamping block 52 to move, and the clamping block 52 moves to disengage from the inside of the block groove 54. In order to prevent the problem of the sliding rod 511 driving the push block 510 to move when the clamping block 52 is not disengaged when the brake mechanism 2 brakes, a limiting groove (not shown in the figure) is provided inside the inner sleeve 48, and a limiting block (not shown in the figure) is provided on one side of the second push block, and the limiting block slides inside the limiting groove. When the limiting block slides, since the limiting block cannot abut on the inner sleeve 48 at the beginning, when the limiting block initially moves, When the second elastic member 46 pushes the inner sleeve 48 to move, the second elastic member 46 pushes the inner sleeve 48 to move; when the sliding rod 511 moves, the clamping rod 51 drives the clamping block 52 to reset, and when the clamping block 52 just contacts the inner wall of the transmission shaft 41, the clamping block 52 may not be able to just enter the inside of the block groove 54, so the ball 53 will initially contact the inside of the rolling groove 55; the ball 53 drives the clamping block 52 to enter the inside of the rolling groove 55, and the ball 53 plays the role of supporting the clamping block 52 to prevent the clamping block 52 from contacting the inner wall of the transmission shaft 41 and causing wear to the clamping block 52; the set ball 53 can play a good protective role.

[0031] The brake mechanism 2 includes a brake pad 24 connected to the inside of the wheel hub 14, a fixing pin 25 is connected to the end of the brake pad 24, a shift block 22 is provided at the end of the brake pad 24, a bracket 212 is provided on the shift block 22, a fixing sleeve 211 is provided on the bracket 212, an extrusion block 29 is provided on the bracket 212, an abutment rod 26 is provided above the extrusion block 29, an abutment block 27 is provided on the abutment rod 26, a first elastic member 28 is sleeved on the abutment block 27, the first elastic member 28 is used to push the abutment rod 26 to reset, an abutment block 27 is provided at the end of the abutment rod 26, and the abutment block 27 is extruded with the shift block 22.

[0032] The brake mechanism 2 further includes a tension spring 23 connected to two brake pads 24 . A pull rod 210 is disposed on the fixing sleeve 211 , and a brake line 21 is disposed on the pull rod 210 .

[0033] The shift block 22 is arranged to rotate and push the two brake pads 24 on both sides to move, so that the brake pads 24 rub against the tire to brake; when the brake line 21 is pulled, the brake line 21 drives the pull rod 210 to rotate, the pull rod 210 drives the fixing sleeve 211 to rotate, and the fixing sleeve 211 synchronously drives the bracket 212 to rotate. When the shift block 22 rotates and drives, the extrusion block 29 rotates synchronously. When the extrusion block 29 rotates, since the extrusion block 29 is a ratchet structure, initially, the abutment rod 26 is located at the bottom of the extrusion block 29. When the abutment rod 26 is continuously squeezed and raised from the bottom of the extrusion block 29, the end of the abutment rod 26 drives The abutment block 27 moves, and when the abutment block 27 moves, it pushes the pushing block 510. The pushing block 510 is an arc-shaped structure. The abutment block 27 is an arc-shaped structure. When the abutment block 27 moves, the abutment block 27 squeezes the pushing block 510 to move, so that the pushing block 510 drives the sliding rod 511 to move synchronously, thereby realizing the separation of the connecting mechanism 4 and the transmission mechanism 1; and by the simultaneous rotation of the set shifting block 22 and the squeezing block 29, the bracket 212 rotates synchronously. Therefore, when the shifting block 22 and the squeezing block 29 are subjected to force at the same time, the bracket 212 can be subjected to force more evenly, thereby extending the service life.

[0034] When the present invention is in use, when braking, when the brake line 21 is pulled, the brake line 21 drives the pull rod 210 to rotate, the pull rod 210 drives the fixing sleeve 211 to rotate, and the fixing sleeve 211 synchronously drives the bracket 212 to rotate. When the shift block 22 rotates and drives, the extrusion block 29 rotates synchronously. When the extrusion block 29 rotates, since the extrusion block 29 is a ratchet structure, initially, the abutment rod 26 is located at the bottom of the extrusion block 29. When the abutment rod 26 is continuously squeezed and lifted from the bottom of the extrusion block 29, the end of the abutment rod 26 drives the abutment block 27 to move. When the abutment block 27 moves, it pushes the pushing block 510. The pushing block 510 is an arc-shaped structure. The abutment block 27 is an arc-shaped structure. When the abutment block 27 moves, the abutment block 27 squeezes the pushing block 510 to move, so that the pushing block 510 drives the sliding rod 511 to move synchronously, thereby realizing the separation of the connecting mechanism 4 and the transmission mechanism 1. When the pushing block 510 moves, the sliding rod 511 moves synchronously, the sliding rod 511 moves and drives multiple pulling rods 57 to move, the pulling rod 57 moves and drives the card rod 51 to move, the card rod 51 moves and drives the card block 52 to move, and the card block 52 moves and disengages from the inside of the block groove 54; in order to prevent the card block 52 from being disengaged from the inside of the block groove 54 when the brake mechanism 2 brakes, the sliding rod 511 drives the pushing block 510 to move and cause the problem of getting stuck when the card block 52 has not yet disengaged. Therefore, a limiting groove is provided inside the inner sleeve 48, and a limiting block is provided on one side of the second pushing block, and the limiting block slides inside the limiting groove; when the limiting block slides, since the limiting block cannot abut on the inner sleeve 48 at the beginning, when the limiting block initially moves, the card block 52 is disengaged from the inside of the card groove, and the sliding rod 511 enters; At this time, the transmission shaft 41 is separated from the inner sleeve 48, and the inner sleeve 48 drives the square seat 42 to move; when the brake mechanism 2 is separated from the push block 510, the push block 510 is reset under the push of the inner sleeve 48, and the second elastic member 46 drives the inner sleeve 48 to move; during the movement of the sliding rod 511, the clamping rod 51 drives the clamping block 52 to reset, and when the clamping block 52 just contacts the inner wall of the transmission shaft 41, the clamping block 52 may not be able to just enter the inside of the block groove 54, so the ball 53 will initially contact the inside of the rolling groove 55; the inner sleeve 48 slides inside the first bearing 45, and the inner sleeve 48 is provided with a guide block that slides inside the guide groove; the inner sleeve 48 is provided with a second elastic member 46, and when the inner sleeve 48 moves, the second elastic member 46 is compressed, and at the same time, the square seat 42 slides inside the clamping seat 31. When the square seat 42 and the inner sleeve 48 rotate synchronously, they can still drive the clamping seat 31 to rotate, and the rotation of the clamping seat 31 drives the wheel to rotate.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A driving device for an electric tricycle, characterized in that: The invention comprises a transmission mechanism (1) mounted on a vehicle body, wherein the transmission mechanism (1) is provided with a brake mechanism (2), and the brake mechanism (2) is used to brake the transmission mechanism (1); the brake mechanism (2) is provided with a separation mechanism (3); the transmission mechanism (1) is provided with a connection mechanism (4), the transmission mechanism (1) drives the connection mechanism (4) to rotate, the connection mechanism (4) is connected to the separation mechanism (3), and the separation mechanism (3) is used to separate the brake mechanism (2) and the connection mechanism (4); and the connection mechanism (4) is provided with a locking mechanism (5), and the locking mechanism (5) is used to lock and separate the connection mechanism (4) and the transmission mechanism (1).

2. The driving device of the electric tricycle according to claim 1, characterized in that: The transmission mechanism (1) comprises a rear axle (13) mounted on a vehicle body, a gear box (12) being mounted on the rear axle (13), wheel hubs (14) being arranged at both ends of the gear box (12), and a motor (11) being arranged on the gear box (12).

3. The driving device of the electric tricycle according to claim 2, characterized in that: The connecting mechanism (4) comprises a transmission shaft (41) arranged inside the rear axle (13); a support (49) is arranged on the rear axle (13); a first bearing (45) is arranged on the support (49); an inner sleeve (48) is arranged inside the first bearing (45); an inner cavity (47) is arranged between the inner sleeve (48) and the first bearing (45); a second elastic member (46) is arranged inside the inner cavity (47); the second elastic member (46) is used to push the inner sleeve (48) to reset; a moving rod (43) is arranged on the inner sleeve (48); a clearance groove (44) is arranged inside the moving rod (43); the moving rod (43) slides inside the clearance groove (44); a square seat (42) is arranged at the end of the moving rod (43); the cross section of the square seat (42) is square; the square seat (42) slides inside the separation mechanism (3).

4. The driving device of the electric tricycle according to claim 3, characterized in that: The separation mechanism (3) comprises a connecting seat (32) arranged on the wheel hub (14), a clamping seat (31) being arranged on the connecting seat (32), the clamping seat (31) having a square cross-section, the square seat (42) sliding inside the clamping seat (31), the square seat (42) driving the clamping seat (31) to rotate, a plurality of connecting grooves (33) being arranged on the connecting seat (32), the connecting grooves (33) being connected to the wheel via bolts.

5. The driving device of the electric tricycle according to claim 4, characterized in that: The engaging mechanism (5) comprises a rolling groove (55) provided inside the transmission shaft (41); a locking seat (512) is provided inside the transmission shaft (41); a clamping block (52) is provided inside the locking seat (512); a clamping rod (51) is provided at the end of the clamping block (52); the clamping rod (51) is engaged with the block groove (54); a ball (53) is provided on the clamping block (52); the ball (53) slides inside the rolling groove (55); a pulling rod (57) is provided on the clamping rod (51); a pin groove (58) is provided on the pulling rod (57); the locking seat (512) is provided inside the transmission shaft (41); the clamping rod (51) is provided at the end of the clamping block (52); the clamping rod (51) is engaged with the block groove (54); a ball (53) is provided on the clamping block (52); the ball (53) slides inside the rolling groove (55); a pulling rod (57) is provided on the pulling rod (57); a pin groove (58) is provided on the pulling rod (57); A stabilizing pin (59) is arranged inside the engaging seat (512); the pin groove (58) slides on the stabilizing pin (59); connecting pins (513) are arranged at both ends of the pulling rod (57); a sliding rod (511) is arranged inside the inner sleeve (48); one end of the pulling rod (210) is connected to the sliding rod (511); a pushing block (510) is arranged on the sliding rod (511); the pushing block (510) is a truncated cone structure; the pushing block (510) abuts against the brake mechanism (2); a third elastic member (56) is arranged on the locking rod (51); the third elastic member (56) is used to push the locking rod (51) to reset.

6. The driving device of the electric tricycle according to claim 5, characterized in that: The brake mechanism (2) comprises a brake pad (24) connected to the inside of the wheel hub (14); a fixing pin (25) is connected to the end of the brake pad (24); a shift block (22) is arranged at the end of the brake pad (24); a bracket (212) is arranged on the shift block (22); a fixing sleeve (211) is arranged on the bracket (212); an extrusion block (29) is arranged on the bracket (212); an abutment rod (26) is arranged above the extrusion block (29); an abutment block (27) is arranged on the abutment rod (26); a first elastic member (28) is sleeved on the abutment block (27); the first elastic member (28) is used to push the abutment rod (26) to reset; an abutment block (27) is arranged at the end of the abutment rod (26); the abutment block (27) is pressed against the shift block (22).

7. The driving device of the electric tricycle according to claim 6, characterized in that: The brake mechanism (2) further comprises a tension spring (23) connected to two brake pads (24); a pull rod (210) is arranged on the fixing sleeve (211); and a brake line (21) is arranged on the pull rod (210).

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