Motor electric control anti-galloping protection device based on electric tricycle

Abstract

The invention discloses a motor electric control anti-galloping protection device based on an electric tricycle, which comprises a support, a motor, a transmission shaft, a driving mechanism and a brake mechanism, the brake mechanism is connected with the transmission shaft, the driving mechanism comprises a driving shaft, a main gear, an auxiliary gear and an extension assembly, one side of the main gear is fixedly connected to the other end of the driving shaft, and the other side of the main gear is fixedly connected to the extension assembly. The auxiliary gear fixedly sleeves the outer wall of the transmission shaft, the main gear is meshed with the auxiliary gear, and the extension assembly is mounted on the other side of the main gear. Therefore, excessive dependence of a traditional technology on a precision sensor is avoided, potential safety hazards caused by sensor faults or collision damage are effectively reduced, and the reliable protection effect can still be achieved under more extreme operation conditions. Meanwhile, the structure of the main gear, the auxiliary gear and the supporting spring which are high in abrasion resistance is ingeniously integrated in the device design, durability and stability under frequent use are guaranteed, and therefore the device adapts to the long-time and high-strength tricycle use scene.

Description

Technical Field

[0001] The invention relates to the technical field of runaway protection, and in particular to a motor-controlled runaway protection device based on an electric tricycle. Background Art

[0002] With the acceleration of urbanization and the promotion of the concept of green travel, electric tricycles are gradually becoming popular as an economical and environmentally friendly short-distance transportation tool. However, with the widespread use of electric tricycles, their safety issues are gradually emerging. In particular, the motor and electronic control system may experience the "flying car" phenomenon in some cases, that is, the vehicle suddenly accelerates or cannot stop without any control operation. This phenomenon not only poses a great safety threat to the driver, but may also endanger the safety of other road users;

[0003] At present, some anti-runaway protection devices on the market rely on the coordinated work of multiple precision sensors to sense changes in the vehicle's state and intervene in time when abnormalities occur. These sensors usually include speed sensors, position sensors, acceleration sensors, etc., which achieve precise control of motor output through real-time monitoring of the vehicle's operating status. However, the implementation of these traditional anti-runaway technologies depends on the normal operation of the sensors. Once the sensors fail or are damaged (for example, when the vehicle collides), the system may be unable to quickly identify the abnormal state of the vehicle, thereby losing effective control of the motor and failing to achieve the expected protection effect. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To achieve the above-mentioned purpose, the present invention proposes a motor-controlled anti-runaway protection device based on an electric tricycle, comprising a bracket, a motor, a transmission shaft, a driving mechanism and a braking mechanism, wherein the driving mechanism is arranged between the motor and the transmission shaft and is connected through the driving mechanism, the braking mechanism is installed on the inner wall of the bracket, and the braking mechanism is connected to the transmission shaft, the driving mechanism comprises a driving shaft, a main gear, a sub-gear and an extension assembly, wherein one end of the driving shaft is fixedly connected to the output end of the motor, one side of the main gear is fixedly connected to the other end of the driving shaft, the sub-gear is fixedly sleeved on the outer wall of the transmission shaft, the main gear is meshed with the sub-gear, and the extension assembly is installed on the other side of the main gear.

[0006] The motor-controlled anti-flying protection device based on the electric tricycle of the present invention, when the motor rotates at high speed, and the main gear and the auxiliary gear are meshed with each other, it drives the transmission shaft to rotate, thereby realizing the operation of the electric tricycle, and when the speed of the motor is out of control, after the speed of the motor exceeds the safe value, the length of the extension component will be extended, thereby being interconnected with the braking mechanism, and then the braking of the transmission shaft can be achieved through the braking mechanism in a mechanical way, so that when the motor speed exceeds the safe range, the physical extension of the extension component triggers the braking mechanism, which is connected to the transmission shaft and implements direct braking. This purely mechanical linkage protection method avoids the excessive reliance of traditional technology on precision sensors, effectively reduces the safety hazards caused by sensor failure or collision damage, and can still play a reliable protective role under more extreme operating conditions. At the same time, the design of the device cleverly integrates the structure of the highly wear-resistant main and auxiliary gears and the support spring, ensuring durability and stability under frequent use, thereby adapting to the long-term and high-intensity use scenarios of tricycles.

[0007] In addition, the motor-controlled anti-runaway protection device based on the electric tricycle according to the present invention may also have the following additional technical features:

[0008] Specifically, the extension assembly includes a support head, a support arm, a support sleeve, a counterweight and a limit spring, wherein the support head is fixedly connected to the other side of the main gear, one end of the support arm is fixedly connected to the end of the support head, one end of the support sleeve is slidably sleeved on the other end of the support arm, the counterweight is fixedly connected to the inner end of the support sleeve, and the limit spring is arranged between one end of the support arm and the counterweight, and they are connected through the limit spring.

[0009] Specifically, the braking mechanism includes a support plate, a support side plate, a rotating rod, a snap-on plate, a snap-on buckle, a brake assembly and a connecting assembly, wherein the support plate is symmetrically fixedly connected to the inner wall of the bracket, and the ends of the two support plates are provided with mounting grooves, the support side plates are symmetrically fixedly connected to one side of the inner wall of the mounting groove, the two ends of the rotating rod are fixedly connected to the inner wall of the support side plate, one end of the snap-on plate is rotatably sleeved on the outer wall of the rotating rod, the snap-on buckle is fixedly connected to the other side of the inner wall of the mounting groove, the other end of the snap-on plate is snap-oned with the snap-on buckle, the brake assembly is symmetrically installed on the inner bottom of the bracket, and the brake assembly is connected to the outer wall of the transmission shaft, the connecting assembly is arranged between the brake assembly and the snap-on plate, and are connected through the connecting assembly.

[0010] Specifically, the brake assembly includes a support seat, a sliding rod, a limit plate, a clamping plate, a clamping pad and a support spring, wherein the support seat is symmetrically fixedly connected to the inner bottom of the bracket, one end of the sliding rod slides through one side of the support seat and is fixedly connected to the outer wall of the clamping plate, the clamping pad is fixedly connected to the inner wall of the clamping plate, the limit plate is fixedly sleeved on the outer wall of the sliding rod, the support spring is arranged between the other side of the support seat and one side of the limit plate, and is connected through the support spring, and the support spring is sleeved on the sliding rod.

[0011] Specifically, the connecting assembly includes a first articulated seat, a second articulated seat and a connecting rope, wherein the first articulated seat is fixedly connected to the outer wall of the clamping plate, the second articulated seat is fixedly connected to the inner wall of the bracket, one end of the connecting rope is fixedly sleeved on the inner wall of the first articulated seat, and the other end of the connecting rope passes through the second articulated seat and is fixedly connected to the other end of the sliding rod.

[0012] Specifically, the other end of the supporting sleeve may be located inside the mounting groove.

[0013] Specifically, the end of the snap-fit ​​plate is magnetically connected to the inner wall of the snap-fit ​​buckle.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0016] Figure 1 It is a schematic diagram of the motor electronically controlled anti-runaway protection device based on an electric tricycle of the present invention;

[0017] Figure 2 A schematic diagram of the structure of a driving mechanism according to an embodiment of the present invention;

[0018] Figure 3 For an embodiment of the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0019] Figure 4 A schematic diagram of the structure of a support plate according to an embodiment of the present invention;

[0020] Figure 5 For one embodiment of the present invention Figure 4 The enlarged structural diagram at B in the middle;

[0021] Figure 6A schematic diagram of the structure of a brake assembly according to an embodiment of the present invention Figure 1 ;

[0022] Figure 7 A schematic diagram of the structure of a brake assembly according to an embodiment of the present invention Figure 2 .

[0023] As shown in the figure:

[0024] 1. Bracket; 2. Motor; 3. Transmission shaft;

[0025] 4. Driving mechanism; 41. Driving shaft; 42. Main gear; 43. Sub gear; 44. Extension assembly; 441. Support head; 442. Support arm; 443. Support sleeve; 444. Counterweight; 445. Limit spring;

[0026] 5. Braking mechanism; 51. Support plate; 52. Support side plate; 53. Rotating rod; 54. Snap-on plate; 55. Snap-on buckle; 56. Braking assembly; 561. Support seat; 562. Sliding rod; 563. Limiting plate; 564. Clamping plate; 565. Clamping pad; 566. Support spring; 57. Connecting assembly; 571. First hinge seat; 572. Second hinge seat; 573. Connecting rope. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations of the present invention. On the contrary, embodiments of the present invention include all changes, modifications and equivalents that fall within the spirit and connotation of the appended claims.

[0028] The following describes the motor electronically controlled anti-runaway protection device based on an electric tricycle according to an embodiment of the present invention in conjunction with the accompanying drawings.

[0029] like Figure 1-Figure 7 As shown, the motor-controlled anti-runaway protection device based on the electric tricycle according to the embodiment of the present invention may include a bracket 1, a motor 2, a transmission shaft 3, a driving mechanism 4 and a braking mechanism 5.

[0030] A driving mechanism 4 is provided between the motor 2 and the transmission shaft 3 , and the motor 2 and the transmission shaft 3 are connected via the driving mechanism 4 .

[0031] It should be noted that the motor 2 described in this embodiment is assembled to the supporting structure of the electric tricycle, and the transmission shaft 3 is also supported and fixed by the supporting structure.

[0032] The brake mechanism 5 is installed on the inner wall of the bracket 1 , and the brake mechanism 5 is connected to the transmission shaft 3 .

[0033] It should be noted that the braking mechanism 5 described in this embodiment is provided with two groups, and is respectively installed on both sides of the inner wall of the bracket 1.

[0034] The driving mechanism 4 includes a driving shaft 41 , a main gear 42 , a secondary gear 43 and an extension assembly 44 .

[0035] Among them, one end of the driving shaft 41 is fixedly connected to the output end of the motor 2, one side of the main gear 42 is fixedly connected to the other end of the driving shaft 41, the sub-gear 43 is fixedly sleeved on the outer wall of the transmission shaft 3, and the main gear 42 and the sub-gear 43 are meshed with the connection wall.

[0036] It should be noted that the main gear 42 and the sub-gear 43 described in this embodiment are made of highly wear-resistant materials to improve the durability and service life of the device.

[0037] The extension assembly 44 is mounted on the other side of the main gear 42 .

[0038] It should be noted that the overall length of the extension assembly 44 described in this embodiment can be extended along with the rotation speed.

[0039] Specifically, in order to achieve safer anti-runaway protection, a driving mechanism 4 is provided between the motor 2 and the transmission shaft 3, and the driving mechanism 4 is connected, a brake mechanism 5 is installed on the inner wall of the bracket 1, and the brake mechanism 5 is connected to the transmission shaft 3, one end of the drive shaft 41 is fixedly connected to the output end of the motor 2, one side of the main gear 42 is fixedly connected to the other end of the drive shaft 41, the sub-gear 43 is fixedly sleeved on the outer wall of the transmission shaft 3, the main gear 42 is meshed with the sub-gear 43, and the extension component 44 is installed on the other side of the main gear 42, and then when the motor 2 rotates at high speed, and the main gear 42 and the sub-gear 43 are meshed with each other, it drives the transmission shaft 3 to rotate, thereby achieving The operation of the electric tricycle, and when the speed of the motor 2 is out of control, after the speed of the motor exceeds the safe value, the length of the extension component 44 will be extended, thereby being interconnected with the braking mechanism 5, and then the transmission shaft 3 can be braked by the braking mechanism 5 in a mechanical way, thereby being able to solve the problem of achieving precise control of the motor output through real-time monitoring of the vehicle's operating status. However, the implementation of these traditional anti-flying technologies depends on the normal operation of the sensor. Once the sensor fails or is damaged, for example when the vehicle collides, it may cause the system to be unable to quickly identify the abnormal state of the vehicle, thereby losing effective control of the motor and failing to achieve the expected protection effect.

[0040] In one embodiment of the present invention, Figure 1-Figure 7As shown, the extension component 44 includes a support head 441, a support arm 442, a support sleeve 443, a counterweight 444 and a limit spring 445, wherein the support head 441 is fixedly connected to the other side of the main gear 42, one end of the support arm 442 is fixedly connected to the end of the support head 441, one end of the support sleeve 443 is slidably sleeved on the other end of the support arm 442, the counterweight 444 is fixedly connected to the inner end of the support sleeve 443, and a limit spring 445 is arranged between one end of the support arm 442 and the counterweight 444, and they are connected through the limit spring 445.

[0041] It should be noted that two counterweight blocks 444 described in this embodiment may be provided, and the other counterweight block 444 is fixedly connected to one end of the support arm 442 , and one end of the limit spring 445 is fixedly connected to the counterweight block 444 .

[0042] Specifically, in order to extend the end of the support sleeve 443, the support head 441 is fixedly connected to the other side of the main gear 42, one end of the support arm 442 is fixedly connected to the end of the support head 441, one end of the support sleeve 443 is slidably sleeved on the other end of the support arm 442, and the counterweight block 444 is fixedly connected to the inner end of the support sleeve 443. A limiting spring 445 is arranged between one end of the support arm 442 and the counterweight block 444, and they are connected through the limiting spring 445. Therefore, when the main gear 42 rotates at a high speed, the end of the support sleeve 443 can be extended under the action of centrifugal force. Therefore, the greater the rotation speed of the main gear 42, the longer the extended length of the end of the support sleeve 443. At the same time, under the action of the counterweight block 444, the extension of the end of the support sleeve 443 can be made more convenient and accurate.

[0043] In one embodiment of the present invention, Figure 1-Figure 7 As shown, the braking mechanism 5 includes a supporting plate 51, a supporting side plate 52, a rotating rod 53, a clamping plate 54, a clamping buckle 55, a braking assembly 56 and a connecting assembly 57, wherein the supporting plate 51 is symmetrically fixedly connected to the inner wall of the bracket 1, and the ends of the two supporting plates 51 are provided with mounting grooves, the supporting side plates 52 are symmetrically fixedly connected to one side of the inner wall of the mounting groove, the two ends of the rotating rod 53 are fixedly connected to the inner wall of the supporting side plate 52, one end of the clamping plate 54 is rotatably sleeved on the outer wall of the rotating rod 53, the clamping buckle 55 is fixedly connected to the other side of the inner wall of the mounting groove, and the other end of the clamping plate 54 is clamped with the clamping buckle 55, the braking assembly 56 is symmetrically installed on the inner bottom of the bracket 1, and the braking assembly 56 is connected to the outer wall of the transmission shaft 3, and a connecting assembly 57 is arranged between the braking assembly 56 and the clamping plate 54, and connected through the connecting assembly 57.

[0044] Furthermore, if Figure 1 As shown, the end of the snap-on plate 54 is magnetically connected to the inner wall of the snap-on buckle 55 .

[0045] Specifically, in order to achieve the anti-runaway protection effect, the support plate 51 is symmetrically fixedly connected to the inner wall of the bracket 1, and the ends of the two support plates 51 are provided with mounting grooves, the support side plates 52 are symmetrically fixedly connected to one side of the inner wall of the mounting groove, the two ends of the rotating rod 53 are fixedly connected to the inner wall of the support side plates 52, one end of the clamping plate 54 is rotatably sleeved on the outer wall of the rotating rod 53, the clamping buckle 55 is fixedly connected to the other side of the inner wall of the mounting groove, and the other end of the clamping plate 54 is clamped with the clamping buckle 55. The brake assembly 56 is symmetrically installed on the inner bottom of the bracket 1, and the brake assembly 56 is connected to the outer wall of the transmission shaft 3. A connecting assembly 57 is provided between the brake assembly 56 and the clamping plate 54, and they are connected through the connecting assembly 57. Then, when the end of the support sleeve 443 is extended, its end will disconnect the clamping plate 54 from the clamping buckle 55, and then the connection between the clamping plate 54 and the brake assembly 56 is disconnected from the connecting assembly 57, so that the brake assembly 56 can brake the transmission shaft 3.

[0046] It should be understood that the up and down directions of the two sets of snap-fit ​​plates 54 and snap-fit ​​buckles 55 are reversed, with the snap-fit ​​plates 54 on one support plate 51 being located at the bottom of the snap-fit ​​buckle 55 and the snap-fit ​​plates 54 on the other support plate 51 being located at the top of the snap-fit ​​buckle 55 .

[0047] In one embodiment of the present invention, Figure 1-Figure 7 As shown, the brake assembly 56 includes a support seat 561, a sliding rod 562, a limiting plate 563, a clamping plate 564, a clamping pad 565 and a support spring 566, wherein the support seat 561 is symmetrically fixedly connected to the inner bottom of the bracket 1, one end of the sliding rod 562 slides through one side of the support seat 561 and is fixedly connected to the outer wall of the clamping plate 564, the clamping pad 565 is fixedly connected to the inner wall of the clamping plate 564, the limiting plate 563 is fixedly sleeved on the outer wall of the sliding rod 562, and a support spring 566 is arranged between the other side of the support seat 561 and one side of the limiting plate 563, and is connected through the support spring 566, and the support spring 566 is sleeved on the sliding rod 562.

[0048] It should be noted that the clamping plate 564 described in this embodiment is an arc-shaped structure.

[0049] Specifically, when the motor electronic control fails, the motor 2 rotates at high speed, so that the end of the support sleeve 443 can move the clamping plate 54, so that the clamping plate 54 is disengaged from the clamping buckle 55, and then because the support seat 561 is symmetrically fixedly connected to the inner bottom of the bracket 1, one end of the sliding rod 562 slides through one side of the support seat 561 and is fixedly connected to the outer wall of the clamping plate 564, the clamping pad 565 is fixedly connected to the inner wall of the clamping plate 564, the limit plate 563 is fixedly sleeved on the outer wall of the sliding rod 562, and a support spring 566 is provided between the other side of the support seat 561 and one side of the limit plate 563, and is connected through the support spring 566, and the support spring 566 is sleeved on the sliding rod 5 62, so that after the clamping plate 54 is disengaged, the connecting assembly 57 is disengaged, and then under the action of the support spring 566, the sliding rod 562 can move laterally, and under the action of the support spring 566, the clamping pad 565 is mobilized to clamp the transmission shaft 3, thereby achieving a braking effect, and then being able to solve the problem of achieving precise control of the motor output through real-time monitoring of the vehicle's operating status. However, the implementation of these traditional anti-runaway technologies depends on the normal operation of the sensor. Once the sensor fails or is damaged, for example when the vehicle collides, it may cause the system to be unable to quickly identify the abnormal state of the vehicle, thereby losing effective control of the motor and failing to achieve the expected protection effect.

[0050] In one embodiment of the present invention, Figure 1-Figure 7 As shown, the connecting assembly 57 includes a first hinge seat 571, a second hinge seat 572 and a connecting rope 573, wherein the first hinge seat 571 is fixedly connected to the outer wall of the clamping plate 54, the second hinge seat 572 is fixedly connected to the inner wall of the bracket 1, one end of the connecting rope 573 is fixedly sleeved on the inner wall of the first hinge seat 571, and the other end of the connecting rope 573 passes through the second hinge seat 572 and is fixedly connected to the other end of the sliding rod 562.

[0051] It should be noted that, with respect to the clamping plate 564 described in this embodiment, if the snap-in plate 54 is located at the top of the snap-in buckle 55, one end of the connecting rope 573 is located at the top of the snap-in plate 54, and at the same time, a limiting sleeve is fixedly connected to the support plate 51, and the limiting sleeve is sleeved on the connecting rope 573.

[0052] Specifically, when the motor is out of control, in order to brake the transmission shaft 3 as soon as possible, the first hinge seat 571 is fixedly connected to the outer wall of the clamping plate 54, the second hinge seat 572 is fixedly connected to the inner wall of the bracket 1, and one end of the connecting rope 573 is fixedly sleeved on the inner wall of the first hinge seat 571, and the other end of the connecting rope 573 passes through the second hinge seat 572 and is fixedly connected to the other end of the sliding rod 562. After the clamping plate 54 and the buckle 55 are disengaged from each other, the connecting rope 573 can be quickly contracted, and under the action of the support spring 566, the clamping pad 565 can clamp and brake the transmission shaft 3.

[0053] It should be understood that the other end of the support sleeve 443 may be located inside the mounting groove.

[0054] In summary, the motor-controlled anti-flying protection device based on the electric tricycle of the embodiment of the present invention, when the motor 2 rotates at high speed, and the main gear 42 and the sub-gear 43 are meshed with each other, so that the transmission shaft 3 is driven to rotate, thereby realizing the operation of the electric tricycle, and when the speed of the motor 2 is out of control, after the speed of the motor exceeds the safe value, the length of the extension component 44 will be extended, thereby being interconnected with the brake mechanism 5, and then the transmission shaft 3 can be braked by the brake mechanism 5 in a mechanical way, so that when the motor speed exceeds the safe range, the physical extension of the extension component triggers the brake mechanism, which is connected to the transmission shaft and implements direct braking. This purely mechanical linkage protection method avoids the excessive reliance of traditional technology on precision sensors, effectively reduces the safety hazards caused by sensor failure or collision damage, and can still play a reliable protective role under more extreme operating conditions. At the same time, the design of the device cleverly integrates the structure of the highly wear-resistant main and sub-gears and the support spring, ensuring durability and stability under frequent use, thereby adapting to the long-term and high-intensity use scenarios of tricycles.

[0055] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0057] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A motor-controlled anti-runaway protection device based on an electric tricycle, characterized in that: It comprises a bracket (1), a motor (2), a transmission shaft (3), a driving mechanism (4) and a braking mechanism (5), wherein: The driving mechanism (4) is arranged between the motor (2) and the transmission shaft (3), and the motor (2) and the transmission shaft (3) are connected via the driving mechanism (4); The braking mechanism (5) is mounted on the inner wall of the bracket (1), and the braking mechanism (5) is connected to the transmission shaft (3); The driving mechanism (4) comprises a driving shaft (41), a main gear (42), a secondary gear (43) and an extension assembly (44), wherein: One end of the driving shaft (41) is fixedly connected to the output end of the motor (2), one side of the main gear (42) is fixedly connected to the other end of the driving shaft (41), the auxiliary gear (43) is fixedly sleeved on the outer wall of the transmission shaft (3), and the main gear (42) is meshingly connected with the auxiliary gear (43); The extension assembly (44) is mounted on the other side of the main gear (42).

2. The motor-controlled anti-runaway protection device based on an electric tricycle according to claim 1 is characterized in that: The extension assembly (44) comprises a support head (441), a support arm (442), a support sleeve (443), a counterweight (444) and a limit spring (445), wherein: The support head (441) is fixedly connected to the other side of the main gear (42), one end of the support arm (442) is fixedly connected to the end of the support head (441), and one end of the support sleeve (443) is slidably sleeved on the other end of the support arm (442); The counterweight block (444) is fixedly connected to the inner end of the support sleeve (443), and the limit spring (445) is provided between one end of the support arm (442) and the counterweight block (444), and they are connected via the limit spring (445).

3. The motor-controlled anti-runaway protection device based on an electric tricycle according to claim 2 is characterized in that: The braking mechanism (5) comprises a supporting plate (51), a supporting side plate (52), a rotating rod (53), a snap-on plate (54), a snap-on buckle (55), a braking assembly (56) and a connecting assembly (57), wherein: The support plates (51) are symmetrically fixedly connected to the inner wall of the bracket (1), and the ends of the two support plates (51) are provided with mounting grooves; The supporting side plate (52) is symmetrically fixedly connected to one side of the inner wall of the mounting groove, the two ends of the rotating rod (53) are fixedly connected to the inner wall of the supporting side plate (52), and one end of the clamping plate (54) is rotatably sleeved on the outer wall of the rotating rod (53); The snap-fit ​​buckle (55) is fixedly connected to the other side of the inner wall of the installation groove, and the other end of the snap-fit ​​plate (54) is snap-fitted to the snap-fit ​​buckle (55); The brake assembly (56) is symmetrically mounted on the inner bottom of the bracket (1), and the brake assembly (56) is connected to the outer wall of the transmission shaft (3). The connection assembly (57) is arranged between the brake assembly (56) and the clamping plate (54), and the two are connected via the connection assembly (57).

4. The motor-controlled anti-runaway protection device based on an electric tricycle according to claim 3 is characterized in that: The brake assembly (56) comprises a support seat (561), a sliding rod (562), a limit plate (563), a clamping plate (564), a clamping pad (565) and a support spring (566), wherein: The support seat (561) is symmetrically fixedly connected to the inner bottom of the bracket (1), one end of the sliding rod (562) slides through one side of the support seat (561) and is fixedly connected to the outer wall of the clamping plate (564), and the clamping pad (565) is fixedly connected to the inner wall of the clamping plate (564); The limiting plate (563) is fixedly sleeved on the outer wall of the sliding rod (562), and the supporting spring (566) is arranged between the other side of the supporting seat (561) and one side of the limiting plate (563), and they are connected through the supporting spring (566), and the supporting spring (566) is sleeved on the sliding rod (562).

5. The motor-controlled anti-runaway protection device based on an electric tricycle according to claim 4 is characterized in that: The connecting assembly (57) comprises a first hinge seat (571), a second hinge seat (572) and a connecting rope (572), wherein: The first hinge seat (571) is fixedly connected to the outer wall of the clamping plate (54), the second hinge seat (572) is fixedly connected to the inner wall of the bracket (1), and one end of the connecting rope (572) is fixedly sleeved on the inner wall of the first hinge seat (571); The other end of the connecting rope (572) passes through the second hinge seat (572) and is fixedly connected to the other end of the sliding rod (562).

6. The motor-controlled anti-runaway protection device based on an electric tricycle according to claim 2, characterized in that: The other end of the supporting sleeve (443) may be located inside the mounting groove.

7. The motor-controlled anti-runaway protection device based on an electric tricycle according to claim 3 is characterized in that: The end of the clamping plate (54) is magnetically connected to the inner wall of the clamping buckle (55).

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