A bicycle booster

Abstract

The utility model provides a bicycle booster relates to bicycle auxiliary mechanism technical field, including power -assisted component, power -assisted component is provided with centrifugal linkage and movable sensing mechanism, centrifugal linkage is constituted by linkage base plate and annular distribution's centrifugal plate, and centrifugal plate is flexibly connected with the base plate center through spring, can synchronous radial telescopic. The utility model has the advantages that this power -assisted mode is after the bicycle operation, drives the friction rubber wheel rotation through the bicycle wheel, and then starts the motor to realize power -assisted, avoids the situation that the bicycle is automatically started to occur when the booster suddenly cuts in, does not bring the user the feeling of abruptness, makes the cycling process more natural and smooth, increases the security of the rider's cycling, reduces the risk of losing control that possibly leads to because of the booster suddenly starting, makes the rider be able to enjoy the joy of cycling more comfortably.

Description

Technical Field

[0001] This utility model relates to the field of bicycle auxiliary mechanism technology, and in particular to a bicycle booster. Background Technology

[0002] Bicycle power-assist devices, as innovative electric devices, play an important role in modern cycling. Their main function is to provide electric assistance to traditional human-powered bicycles, making riding easier and more comfortable for riders. They work by having their own sensors, motor, and battery work together to provide additional power to the bicycle.

[0003] However, traditional bicycle boosters typically rely solely on a simple on / off switch to provide acceleration; once the switch is turned on, the booster immediately provides acceleration. This design presents significant safety hazards in practical use. When the bicycle is traveling at low speeds or has not yet started, if the booster suddenly accelerates, the rider often struggles to adapt quickly to the sudden change in speed. Due to the limited reaction time and balance adjustment capabilities of the human body, the rider may not be able to adjust their riding posture and effort in time, leading to a loss of balance. In severe cases, this can even result in a tipping over, posing a significant threat to the rider's safety.

[0004] The technical content disclosed in the Chinese patent document (Announcement No.: CN205150141U, Patent Name: Bicycle Assist Device) is as follows: A rotary motor is mounted on a mounting shaft or a switching frame, which is pivotally connected to the bicycle frame. When the switching frame pivots relative to the bicycle frame, the roller contacts or disengages from the bicycle wheel. Therefore, when the bicycle assist device of this utility model needs to assist the bicycle, the switching frame first makes the roller contact the wheel, and then the rotary motor drives the roller to rotate. The rotating roller drives the wheel to roll on the ground through friction with the wheel, thus achieving the purpose of assisting the bicycle. When the assist is not needed, the switching frame can be used to disengage the roller from the wheel, thereby restoring the bicycle to normal riding requirements.

[0005] As can be seen from the content of the above patent documents, the bicycle booster does not have a corresponding structure to accelerate the bicycle in accordance with its speed. Therefore, when the booster accelerates the bicycle, the rider will feel abrupt and find it difficult to adapt. Utility Model Content

[0006] This invention overcomes the shortcomings of the prior art and provides a bicycle power-up device. It is equipped with a centrifugal linkage to assist in starting the motor. In the centrifugal linkage, the centrifugal plate is flexibly connected to the center of the base plate by a spring. It can synchronously expand and contract radially with the change of rotation speed. When the rotation speed decreases, it can quickly reset, ensuring the normal operation of the centrifugal linkage and accurately sensing the change of bicycle wheel speed, providing a reliable basis for subsequent power-assisted starting.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: A bicycle power assist device includes a power assist component, which is equipped with a centrifugal linkage and an activity sensing mechanism. The centrifugal linkage consists of a linkage base plate and a ring-shaped distribution of centrifugal plates. The centrifugal plates are flexibly connected to the center of the base plate by springs and can synchronously extend and retract radially. The centrifugal plate is embedded inside the friction wheel, which is connected to the motor. The active sensing mechanism includes a switch mounting base, a Hall switch at one end of the switch mounting base, a switch rotating rod hinged to the middle of the switch mounting base, and a switch reset torsion spring between the two; a sensing magnet is provided at the end of the switch rotating rod near the Hall switch, and a rubber-coated bearing is rotatably connected to the end of the switch rotating rod away from the Hall switch. The rubber-coated bearing is incised within a ring-shaped mechanism formed by several centrifugal plates, and the switch reset torsion spring drives the outer side of the rubber-coated bearing to always be in contact with the inner side of the centrifugal plates. The outer side of the friction rubber wheel is tangent to the bicycle wheel. The rotation of the bicycle wheel drives the friction rubber wheel to rotate passively. When the speed increases, the centrifugal plate expands outward, the rubber-coated bearing is displaced, and the rotating rod is pried to bring the magnet closer to the Hall switch. The signal from the Hall switch activates the motor, which drives the friction rubber wheel to rotate actively, providing assistance to the bicycle wheel through friction.

[0008] Furthermore, the end of the switch rotating rod used to connect to the inductive magnet is an arc-shaped movable block; when the end of the switch rotating rod rotates to the vicinity of the Hall switch, the arc center of the movable block is closest to the Hall switch, thereby enabling the Hall switch to be activated by the inductive magnet.

[0009] Furthermore, the centrifugal plate is connected to the end of the centrifugal sliding plate, and a sliding groove is provided at the center of the centrifugal sliding plate. The limiting bolt passes through the sliding groove and is connected to the linkage base plate. A center limiting plate is provided at the center of the linkage base plate; a fixing pad is provided on the side of the centrifugal sliding plate away from the linkage base plate.

[0010] Furthermore, the rotating housing of the motor is connected to the friction wheel fixing ring, the friction rubber wheel is fitted on the outside of the friction wheel fixing ring, the outer periphery of the friction wheel fixing ring is provided with columnar protrusions, the inner side of the friction rubber wheel is provided with grooves, and the columnar protrusions are fitted into the grooves.

[0011] Furthermore, the motor is connected to the fixed plate, and the control board and battery are connected to the other side of the fixed plate. A housing is sleeved on the outside of the battery, and an upper housing is provided on the outside of the friction rubber wheel. A power switch is provided on the upper housing, and the power switch is electrically connected to the battery and the motor.

[0012] Furthermore, the power assist component is connected to the bicycle body via a connecting component; The bicycle seat of the main body of the bicycle is set on the bicycle triangle frame, which connects the bicycle wheel and the connecting component. The connecting component forces the friction rubber wheel of the power assist component to always remain in contact and tangential with the bicycle wheel.

[0013] Furthermore, the connecting assembly includes a fixed base, an adjustment groove at the upper end of the fixed base, a transition shaft at the lower end of the adjustment groove, a pressure torsion spring inserted into the transition shaft, and the transition shaft is also rotatably connected to the movable seat at the bottom. The pressure torsion spring generates elastic resistance to the movable seat, so that the upper end of the movable seat always tends to stay away from the fixed base. When an external force is used to press the movable seat toward the fixed base, the movable seat can be pressed into the adjustment groove.

[0014] Furthermore, a first docking opening groove is provided on one side of the adjustment groove, and a second docking opening groove is provided on one side of the movable seat; The movable seat is rotatably connected to a movable locking handle on the side facing the fixed base; When the movable seat is pressed into the adjustment groove, the first docking opening groove and the second docking opening groove coincide. At this time, rotate the movable locking handle to insert it into the first docking opening groove and the second docking opening groove, locking the movable seat and the fixed base so that the two will no longer spring apart.

[0015] Furthermore, the end of the assist component facing the connecting component is provided with a locking button and a charging port, and two connecting buttons are provided on both sides of the lower end of the locking button; The movable seat is provided with an upward-facing locking main slot, and the locking main slot is provided with upward-facing locking side slots on both sides. When the assist component is connected to the connecting component, first insert the two connecting buttons from top to bottom into the locking side slots. At this time, the locking buttons will also be inserted into the locking main slot. Then, pull up the movable locking handle from the first docking opening slot and the second docking opening slot. The movable locking handle is provided with a movable locking slot with an opening on one side. When the active locking handle is pulled up, it moves toward the locking button until the locking button is inserted into the active locking slot. At this point, the power assist component and the connecting component are locked together, and the pressure torsion spring returns to its elastic force, causing the friction rubber wheel of the power assist component to press against the bicycle wheel.

[0016] Compared with the prior art, the beneficial effects of this utility model are: A centrifugal actuator is incorporated to assist in starting the motor. Within the actuator, a centrifugal plate is flexibly connected to the center of the base plate via a spring, allowing it to expand and contract radially in sync with changes in rotational speed. It quickly resets when the speed decreases, ensuring the actuator functions correctly and accurately senses changes in bicycle wheel speed, providing a reliable basis for subsequent power-assisted starting. This power-assisted method works by having the bicycle wheels drive the friction rubber wheel to rotate after the bicycle has started moving, then activating the motor to provide assistance. This avoids the abrupt switching of the power-assist system that could cause the bicycle to start automatically. It provides a smoother, more natural riding experience, while also increasing rider safety and reducing the risk of loss of control due to sudden power-assist system activation, allowing riders to enjoy riding with greater peace of mind. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the utility model and, together with the embodiments of the utility model, are used to explain the present utility model. They do not constitute a limitation on the present utility model. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the bicycle booster according to an embodiment of the present invention; Figure 2 This is a first exploded view of the assist component according to an embodiment of the present invention; Figure 3 This is a second exploded view of the assist component according to an embodiment of the present invention; Figure 4 This is a first installation diagram of the assist component and the connecting component according to an embodiment of the present utility model; Figure 5 This is a second installation diagram of the assist component and the connecting component according to an embodiment of the present utility model; Figure 6 This is a first exploded view of the connecting component according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the first structure of the connecting component according to an embodiment of the present utility model; Figure 8 This is a schematic diagram of the second structure of the connecting component according to an embodiment of the present utility model; Figure 9 This is a diagram showing the motor of the power assist component before it starts working, according to an embodiment of this utility model. Figure 10 This is a diagram showing the motor working state of the assist component according to an embodiment of this utility model; Figure 11 This is an exploded schematic diagram of the centrifugal linkage and motion sensing mechanism according to an embodiment of the present invention.

[0018] In the diagram: 1. Assist component; 101. Housing; 1011. Connecting button; 1012. Locking button; 1013. Charging port; 102. Battery; 103. Control board; 104. Fixing plate; 105. Motor; 106. Friction wheel fixing ring; 107. Friction rubber wheel; 108. Centrifugal linkage; 1081. Linkage base plate; 1082. Shaft limit plate; 1083. Centrifugal sliding plate; 10831. Sliding slot; 1084. Limit bolt; 1085. Centrifugal plate; 1086. Fixing pad; 1087. Spring; 109. Motion sensing mechanism; 1091. Switch fixing seat; 10911. Hall switch; 1092. 1. Switch rotating rod; 1093. Switch reset torsion spring; 1094. Arc-shaped movable block; 10941. Induction magnet; 1095. Rubber-coated bearing; 1010. Upper housing; 1001. Power switch; 2. Connecting assembly; 201. Fixed base; 2011. Adjustment groove; 2012. First docking opening groove; 202. Adapter shaft; 203. Pressure torsion spring; 204. Movable seat; 2041. Locking main groove; 2042. Locking side groove; 2043. Second docking opening groove; 205. Movable locking handle; 2051. Movable locking slot; 3. Bicycle body; 301. Bicycle triangle frame; 302. Bicycle wheel; 303. Bicycle seat. Detailed Implementation

[0019] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0020] like Figures 1 to 11 As shown, a bicycle power-assist device includes a power-assist assembly 1. The power-assist assembly 1 is equipped with a centrifugal linkage 108 and an activity sensing mechanism 109. The centrifugal linkage 108 consists of a linkage base plate 1081 and annularly distributed centrifugal plates 1085. The centrifugal plates are flexibly connected to the center of the base plate by springs 1087. This design allows the centrifugal plates 1085 to synchronously extend and retract radially. The springs 1087 not only cause the centrifugal plates 1085 to extend and retract accordingly when the rotational speed changes, but also quickly reset the centrifugal plates 1085 when the rotational speed decreases, ensuring the normal operation of the entire centrifugal linkage 108.

[0021] The centrifugal plate 1085 is embedded inside the friction rubber wheel 107, which is connected to the motor 105. The friction rubber wheel 107 has good friction performance, which can effectively transmit power when in contact with the bicycle wheel 302. At the same time, its rubber material can also play a role in cushioning and shock absorption, reducing vibration and noise during riding and improving riding comfort.

[0022] The motion sensing mechanism 109 includes a switch mounting base 1091. A Hall switch 10911 is mounted at one end of the switch mounting base 1091. The Hall switch 10911 is a sensor based on the Hall effect, which can accurately sense changes in the magnetic field and convert these changes into electrical signals, providing accurate control signals for starting the motor 105. A switch rotating rod 1092 is hinged to the middle of the switch mounting base 1091, and a switch reset torsion spring 1093 is also provided between the two. A sensing magnet 10941 is mounted at the end of the switch rotating rod 1092 near the Hall switch 10911, and a rubber-coated bearing 1095 is rotatably connected to the end of the switch rotating rod 1092 away from the Hall switch 10911. The switch rotating rod 1092 plays a role in force transmission and conversion, converting the displacement of the rubber-coated bearing 1095 into the movement of the magnet 10941. The switch reset torsion spring 1093 can quickly reset the switch rotating rod 1092 after the displacement of the rubber-coated bearing 1095 disappears, ensuring that the active sensing mechanism 109 can work continuously and stably. The rubber-coated bearing 1095 can not only rotate flexibly in the annular mechanism formed by the centrifugal plate 1085, but also reduce the friction between it and the centrifugal plate 1085, extending the service life of the components.

[0023] The rubber-coated bearing 1095 is tangent to the annular mechanism formed by several centrifugal plates 1085. The outer side of the rubber-coated bearing 1095 is always in contact with the inner side of the centrifugal plate 1085. This is due to the action of the switch reset torsion spring 1093, which ensures that the motion sensing mechanism 109 can detect the expansion and contraction of the centrifugal plate 1085 in a timely and accurate manner.

[0024] The outer side of the friction rubber wheel 107 is tangential to the bicycle wheel 302. When the rider begins to pedal, the bicycle wheel 302 rotates, causing the friction rubber wheel 107 to rotate passively. As the rotational speed of the bicycle wheel 302 increases, the centrifugal plate 1085 in the centrifugal actuator 108 expands outward under the action of centrifugal force. At this time, the rubber-coated bearing 1095 is displaced by the pressure of the centrifugal plate 1085, which in turn pries the rotating rod 1092, causing the magnet 10941 to approach the Hall switch 10911. After the Hall switch 10911 detects the change in magnetic field, its signal activates the motor 105, which drives the friction rubber wheel 107 to rotate actively. The friction rubber wheel 107 provides assistance to the bicycle wheel 302 through the friction between it and the bicycle wheel 302, helping the rider ride more easily.

[0025] This power assist method works by driving the friction rubber wheel 107 to rotate via the bicycle wheel 302 after the bicycle has started moving, which then activates the motor 105 to provide assistance. This means the power assist is added after the bicycle has started, avoiding the possibility of the power assist suddenly engaging and causing the bicycle to start automatically. This avoids an abrupt feeling for the user, making the riding process more natural and smooth. At the same time, this design also increases the rider's safety, reducing the risk of loss of control that may result from the sudden activation of the power assist, allowing riders to enjoy the ride with greater peace of mind.

[0026] The end of the switch rotating rod 1092 that connects to the inductive magnet 10941 is an arc-shaped movable block 1094; the arc-shaped movable block 1094 structurally optimizes the connection. When the end of the switch rotating rod 1092 rotates to the vicinity of the Hall switch 10911, the center of the arc of the movable block 1094 will be closest to the Hall switch 10911. This aims to maximize the magnetic field influence of the inductive magnet 10941 on the Hall switch 10911. The Hall switch 10911, as a sensor based on the Hall effect, is extremely sensitive to changes in magnetic field strength. The arc-shaped movable block 1094 accurately guides the inductive magnet 10941 to the position closest to the Hall switch 10911 and where the magnetic field influence is strongest, enabling the Hall switch 10911 to quickly and reliably detect changes in the magnetic field. On one hand, this improves the response speed of the entire assist system. When the bicycle wheel reaches a certain speed, the centrifugal plate expands outward, causing the rubber-coated bearing to shift. This, in turn, rotates the switch lever 1092, allowing the arc-shaped movable block 1094 to quickly move the sensing magnet 10941 to the effective sensing position. This enables the Hall switch 10911 to promptly send a signal to activate the motor, providing timely assistance to the bicycle. Furthermore, it enhances the system's stability and reliability. Because the arc-shaped movable block 1094 ensures accurate relative positioning between the sensing magnet 10941 and the Hall switch 10911, it reduces sensing errors or delays caused by positional deviations, enabling the power assist system to operate stably under various riding conditions.

[0027] Centrifugal plate 1085 is connected to the end of centrifugal sliding plate 1083. A sliding groove 10831 is provided at the center of the centrifugal sliding plate 1083, and a limiting bolt 1084 passes through the sliding groove 10831 and connects to the linkage base plate 1081. The design of the sliding groove 10831 provides a specific track and range for the movement of the centrifugal sliding plate 1083. When the centrifugal plate 1085 drives the centrifugal sliding plate 1083 to move, the centrifugal sliding plate 1083 can slide along the direction of the sliding groove 10831. The limiting bolt 1084 serves a dual purpose: on the one hand, it connects the centrifugal sliding plate 1083 to the linkage base plate 1081, ensuring the integrity of the entire structure; on the other hand, it limits the sliding range of the centrifugal sliding plate 1083, preventing excessive sliding that could lead to structural damage or functional failure. The advantage of this design is that it ensures both the flexible movement of the centrifugal sliding plate 1083 and the safety and controllability of its movement, enabling the centrifugal actuator 108 to operate stably at different speeds.

[0028] A center limiting plate 1082 is provided at the center of the linkage base plate 1081; a fixing plate 1086 is provided on the side of the centrifugal sliding plate 1083 away from the linkage base plate 1081. The fixing plate 1086 serves a protective and reinforcing function. It can increase the contact area between the centrifugal sliding plate 1083 and other components, distribute the force, reduce local pressure, and thus protect the centrifugal sliding plate 1083 from damage. In addition, the fixing plate 1086 can also improve the structural strength of the centrifugal sliding plate 1083, making it less prone to deformation when subjected to large centrifugal forces, ensuring the long-term stable operation of the centrifugal actuator 108. At the same time, the fixing plate 1086 can also play a role in buffering and shock absorption, reducing noise and vibration generated during operation and improving the user experience of the actuator.

[0029] The rotating housing of the motor 105 is connected to the friction wheel fixing ring 106. The rotating housing not only protects the motor's internal precision structure, preventing damage from dust, moisture, and other external factors, thus extending the motor's lifespan, but also plays a crucial role in transmitting the motor's power outwards. By connecting to the friction wheel fixing ring 106, the rotating housing directly transmits the motor's rotational power to the friction wheel fixing ring 106, laying the foundation for subsequent power transmission. This direct connection reduces energy loss during power transmission, improves power transmission efficiency, and allows the motor's power to be converted into assist more efficiently. The friction rubber wheel 107 is fitted onto the outside of the friction wheel fixing ring 106. The outer circumference of the friction wheel fixing ring 106 has columnar protrusions, and the inner side of the friction rubber wheel 107 has grooves, with the columnar protrusions fitting inside the grooves. These columnar protrusions not only increase the contact area between the friction wheel fixing ring 106 and the friction rubber wheel 107 but also serve a positioning and anti-slip function. During power transmission, the columnar protrusions more effectively transfer rotational force to the friction wheel 107, ensuring synchronous rotation between the two and reducing the possibility of relative slippage, thereby improving the stability and reliability of power transmission. Furthermore, this design makes the connection between the friction wheel retaining ring 106 and the friction wheel 107 tighter, enhancing the overall structural integrity and reducing the risk of component loosening or damage due to vibration or external impact. The rubber material of the friction wheel 107 has good elasticity and friction. When it contacts the bicycle wheel, it can transfer power to the bicycle wheel through friction, thus providing assistance to the bicycle. At the same time, the rubber material also acts as a buffer and shock absorber, reducing vibration and noise generated during power transmission and improving riding comfort. In addition, the design of the friction wheel 107 allows it to better adapt to different road conditions and riding needs when in contact with the bicycle wheel, ensuring the stability and reliability of the assistance effect.

[0030] The motor 105 is connected to the mounting plate 104. The other side of the mounting plate 104 connects the control board 103 and the battery 102. A housing 101 is fitted over the battery 102. The control board 103 is the intelligent control core of the entire power assist system; it can precisely control the speed and power of the motor 105 according to the bicycle's operating status and the user's needs. Through intelligent control of the motor, the control board 103 can achieve precise adjustment of the power assist, providing riders with a more comfortable and efficient riding experience. The battery 102 provides power to the entire power assist system, and its outer side is fitted with the housing 101. The housing 101 not only protects the battery 102 from external environmental influences such as dust, moisture, and impacts, but also provides heat insulation and fireproofing, improving battery safety and lifespan. An upper housing 1010 is provided on the outer side of the friction rubber wheel 107. A power switch 1001 is installed on the upper housing 1010, and the power switch 1001 is electrically connected to the battery 102 and the motor 105. The upper housing 1010 protects the friction roller 107 and other internal components. It prevents damage to the friction roller 107 from external objects and reduces the ingress of dust and debris, ensuring the normal operation of the power assist system. A power switch 1001 is located on the upper housing 1010, which is electrically connected to the battery 102 and the motor 105. The power switch 1001 allows the user to easily control the power assist system, enabling them to activate or deactivate the function as needed. This design improves the ease of use and flexibility of the power assist system, allowing riders greater autonomy in controlling the riding process.

[0031] The power assist component 1 is connected to the bicycle body 3 via the connecting component 2; The bicycle seat 303 of the bicycle body 3 is mounted on the bicycle triangle 301. The bicycle triangle 301 connects the bicycle wheel 302 and the connecting component 2. The important function of the connecting component 2 is to force the friction rubber wheel 107 of the power assist component 1 to always be in contact and tangential with the bicycle wheel 302. This is the key to realizing power transmission and ensures that the power of the power assist component 1 can be efficiently transmitted to the bicycle wheel 302, thereby providing assistance for riding.

[0032] The connecting component 2 includes a fixed base 201, the upper end of which is provided with an adjustment groove 2011. The adjustment groove 2011 provides movement space for the movable seat 204 and restricts the movement trajectory of the movable seat 204. A transition shaft 202 is provided near the lower end of the adjustment groove 2011. A pressure torsion spring 203 is inserted into the transition shaft 202. The transition shaft 202 is also rotatably connected to the movable seat 204 near the bottom. This ensures that the upper end of the movable seat 204 always tends to stay away from the fixed base 201. This elastic resistance allows the friction rubber wheel 107 of the power assist assembly 1 to maintain a continuous and tight fit with the bicycle wheel 302, ensuring stable power transmission. Simultaneously, when an external force is applied to press the movable seat 204 towards the fixed base 201, it can be pressed into the adjustment groove 2011, a design that facilitates the installation and removal of the power assist assembly 1.

[0033] The adjustment groove 2011 has a first docking opening groove 2012 on one side, and the movable seat 204 has a second docking opening groove 2043 on one side. The movable seat 204 is rotatably connected to the fixed base 201 on the side facing the movable seat 204. When the movable seat 204 is pressed into the adjustment groove 2011, the first docking opening groove 2012 and the second docking opening groove 2043 overlap. At this time, the movable locking handle 205 is rotated to insert it into the first docking opening groove 2012 and the second docking opening groove 2043, locking the movable seat 204 and the fixed base 201 so that the two no longer spring apart. When the two are locked, the friction rubber wheel 107 of the power assist component 1 will no longer press against the bicycle wheel 302, and the power assist component 1 can be removed from the connecting component 2.

[0034] The end of the assist component 1 facing the connection component 2 is provided with a locking button 1012 and a charging connection port 1013, and two connection buttons 1011 are provided on both sides of the lower end of the locking button 1012; The movable base 204 is provided with an upward-facing locking main slot 2041, and upward-facing locking side slots 2042 are provided on both sides of the locking main slot 2041. When the assist component 1 is connected to the connecting component 2, the two connecting buttons 1011 are first inserted into the locking side slots 2042 from top to bottom. At this time, the locking button 1012 will also be inserted into the locking main slot 2041. This insertion method plays a role in initial positioning and connection, ensuring the accurate relative position of the assist component 1 and the connecting component 2. Next, the movable locking handle 205 is pulled up from the first mating opening slot 2012 and the second mating opening slot 2043. The movable locking handle 205 is provided with a movable locking slot 2051 with an opening on one side. After the movable locking handle 205 is pulled up, it moves towards the locking button 1012 until the locking button 1012 is inserted into the movable locking slot 2051. At this time, the assist component 1 and the connecting component 2 are firmly locked together. At the same time, the pressure torsion spring 203 restores its elasticity, causing the friction rubber wheel 107 of the power assist component 1 to press against the bicycle wheel 302, thus completing the preparation work for power transmission.

[0035] The charging port 1013 facilitates the charging of the battery of the power assist component 1, enabling the power assist component 1 to continuously provide power to the bicycle. This connection method not only facilitates the installation and removal of the power assist component 1, but also ensures the stability and reliability of the power assist system, allowing riders to enjoy the pleasure of riding more easily and happily.

[0036] This utility model's bicycle power-up device incorporates a centrifugal actuator 108 to assist in starting the motor 105. The centrifugal plate 1085 in the centrifugal actuator 108 is flexibly connected to the center of the base plate via a spring 1087, allowing it to expand and contract radially in sync with changes in rotational speed. It quickly resets when the speed decreases, ensuring the centrifugal actuator functions normally and accurately senses changes in bicycle wheel speed, providing a reliable basis for subsequent power-up activation. This power-up method works by driving the friction rubber wheel 107 to rotate via the bicycle wheel 302 after the bicycle has started moving, then activating the motor 105 to provide assistance. This avoids the situation where the power-up suddenly engages and the bicycle starts automatically. It avoids abrupt changes in feel, making the riding process more natural and smooth, while increasing rider safety and reducing the risk of loss of control due to sudden power-up activation, allowing riders to enjoy riding with greater peace of mind.

[0037] The Hall switch 10911 of the active sensing mechanism 109 can accurately sense changes in the magnetic field, providing a precise control signal for the start-up of the motor 105. The switch rotation rod 1092 and the switch reset torsion spring 1093 cooperate to enable the rubber-coated bearing 1095 to promptly and accurately sense the extension and retraction of the centrifugal plate 1085, ensuring the continuous and stable operation of the sensing mechanism. The arc-shaped movable block 1094 at one end of the switch rotation rod 1092 can maximize the influence of the sensing magnet 10941 on the magnetic field of the Hall switch 10911, improving the response speed and stability of the assist system and reducing sensing errors or delays.

[0038] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the utility model should be included within the protection scope of the utility model.

Claims

1. A bicycle booster, characterized in that, It includes an assist component (1), which is equipped with a centrifugal linkage (108) and an activity sensing mechanism (109). The centrifugal linkage (108) is composed of a linkage base plate (1081) and a ring-shaped centrifugal plate (1085). The centrifugal plate is flexibly connected to the center of the base plate by a spring (1087) and can be synchronously extended and retracted radially. The centrifugal plate (1085) is embedded inside the friction rubber wheel (107), and the friction rubber wheel is connected to the motor (105); The active sensing mechanism (109) includes a switch mounting base (1091), a Hall switch (10911) is provided at one end of the switch mounting base (1091), a switch rotating rod (1092) is hinged to the middle of the switch mounting base (1091), and a switch reset torsion spring (1093) is provided between the two; a sensing magnet (10941) is provided at the end of the switch rotating rod (1092) near the Hall switch (10911), and a rubber-coated bearing (1095) is rotatably connected at the end of the switch rotating rod (1092) away from the Hall switch (10911); The rubber-coated bearing (1095) is incised within a ring-shaped mechanism formed by several centrifugal plates (1085), and the switch reset torsion spring (1093) drives the outer side of the rubber-coated bearing (1095) to always be in contact with the inner side of the centrifugal plate (1085). The outer side of the friction rubber wheel (107) is tangent to the bicycle wheel (302). The rotation of the bicycle wheel (302) drives the friction rubber wheel (107) to rotate passively. When the speed increases, the centrifugal plate (1085) expands outward, the rubber-coated bearing (1095) is displaced, and the rotating rod (1092) is pried to make the magnet (10941) approach the Hall switch (10911). The signal of the Hall switch (10911) activates the motor (105) and drives the friction rubber wheel (107) to rotate actively, providing assistance to the bicycle wheel through friction.

2. A bicycle booster according to claim 1, characterized in that, The end of the switch rotating rod (1092) used to connect to the induction magnet (10941) is an arc-shaped movable block (1094); when the end of the switch rotating rod (1092) rotates to the vicinity of the Hall switch (10911), the arc center of the arc-shaped movable block (1094) is closest to the Hall switch (10911), so that the Hall switch (10911) can be activated by the induction magnet (10941).

3. A bicycle booster according to claim 2, characterized in that, The centrifugal plate (1085) is connected to the end of the centrifugal sliding plate (1083). A sliding groove (10831) is provided at the center of the centrifugal sliding plate (1083). The limiting bolt (1084) passes through the sliding groove (10831) and is connected to the linkage base plate (1081). A central limiting plate (1082) is provided at the center of the linkage base plate (1081); a fixing pad (1086) is provided on the side of the centrifugal sliding plate (1083) away from the linkage base plate (1081).

4. A bicycle booster according to claim 1, characterized in that, The rotating housing of the motor (105) is connected to the friction wheel fixing ring (106), the friction rubber wheel (107) is fitted on the outside of the friction wheel fixing ring (106), the outer periphery of the friction wheel fixing ring (106) is provided with columnar protrusions, the inner side of the friction rubber wheel (107) is provided with grooves, and the columnar protrusions are fitted into the grooves.

5. A bicycle booster according to claim 4, characterized in that, The motor (105) is connected to the fixing plate (104). The other side of the fixing plate (104) is connected to the control plate (103) and the battery (102). The battery (102) is fitted with a housing (101). The friction wheel (107) is provided with an upper housing (1010). The upper housing (1010) is provided with a power switch (1001). The power switch (1001) is electrically connected to the battery (102) and the motor (105).

6. A bicycle booster according to any one of claims 1 to 5, characterized in that, The power assist component (1) is connected to the bicycle body (3) via the connecting component (2); The bicycle seat (303) of the bicycle body (3) is mounted on the bicycle triangle (301). The bicycle triangle (301) connects the bicycle wheel (302) and the connecting component (2). The connecting component (2) forces the friction rubber wheel (107) of the power assist component (1) to always remain in contact with and tangent to the bicycle wheel (302).

7. A bicycle booster according to claim 6, characterized in that, The connecting assembly (2) includes a fixed base (201), an adjustment groove (2011) is provided at the upper end of the fixed base (201), a transition shaft (202) is provided near the lower end of the adjustment groove (2011), a pressure torsion spring (203) is inserted into the transition shaft (202), and the transition shaft (202) is also rotatably connected to the movable seat (204) near the bottom. The pressure torsion spring (203) generates elastic resistance to the movable seat (204), so that the upper end of the movable seat (204) always tends to stay away from the fixed base (201). When an external force is used to press the movable seat (204) toward the fixed base (201), the movable seat (204) can be pressed into the adjustment groove (2011).

8. A bicycle booster according to claim 7, characterized in that, The adjustment groove (2011) has a first docking opening groove (2012) on one side, and the movable seat (204) has a second docking opening groove (2043) on one side. The movable seat (204) is rotatably connected to the side facing the fixed base (201) with a movable locking handle (205). When the movable seat (204) is pressed into the adjusting groove (2011), the first docking opening groove (2012) and the second docking opening groove (2043) overlap. At this time, rotate the movable locking handle (205) to insert it into the first docking opening groove (2012) and the second docking opening groove (2043), locking the movable seat (204) and the fixed base (201) so that the two will no longer spring apart.

9. A bicycle booster according to claim 8, characterized in that, The assist component (1) is provided with a locking button (1012) and a charging port (1013) at one end facing the connecting component (2), and two connecting buttons (1011) are provided on both sides of the lower end of the locking button (1012). The movable seat (204) is provided with an upward-facing locking main slot (2041), and the locking main slot (2041) is provided with upward-facing locking side slots (2042) on both sides. When the assist component (1) is connected to the connecting component (2), firstly, the two connecting plugs (1011) are inserted into the locking side slots (2042) from top to bottom. At this time, the locking plugs (1012) will also be inserted into the locking main slot (2041). Then, the movable locking handle (205) is pulled up from the first docking opening slot (2012) and the second docking opening slot (2043). The movable locking handle (205) is provided with a movable locking slot (2051) with an opening on one side. When the active locking handle (205) is pulled up, it moves toward the locking button (1012) until the locking button (1012) is inserted into the active locking slot (2051). At this time, the power assist assembly (1) and the connecting assembly (2) are locked together, and the pressure torsion spring (203) returns to its elastic force, causing the friction rubber wheel (107) of the power assist assembly (1) to press against the bicycle wheel (302).

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