Follow-up adjustment assembly and continuously variable transmission

Abstract

A follow-up adjustment assembly (40) and a continuously variable transmission. The follow-up adjustment assembly (40) comprises: a base (1) having a first side surface (14) and a second side surface (15), wherein the base (1) is further provided with an accommodating cavity (13), an included angle is formed between the bottom wall (131) of the accommodating cavity (13) opposite to the opening thereof and the second side surface (15), and the bottom wall (131) of the accommodating cavity (13) is provided with a first position and a second position; a locking member (2) accommodated in the accommodating cavity (13) and slidably arranged on the bottom wall (131) of the accommodating cavity (13); and a driving mechanism arranged on the base (1) and connected to the locking member (2). By providing the driving mechanism to drive the locking member (2) to slide to the first position or the second position, the follow-up adjustment assembly (40) is in an unlocked state or a locked state, so that the continuously variable transmission allows for gear shifting when the bicycle is in a stationary mode, a rotating mode or a riding mode.

Description

A follow-up adjustment component and continuously variable transmission Technical Field

[0001] The present invention relates to the technical field of transmissions, and in particular to a follow-up adjustment component and a continuously variable transmission. Background Art

[0002] In the related technology, the vast majority of transmissions currently used on power-assisted bicycles use stepped transmissions, which are divided into internal and external transmissions. Both types of transmissions have limited fixed gears. During the adjustment process, the pedaling force may be too large when adjusting to a higher gear and too small when adjusting to a lower gear. In addition, the internal transmission is heavy and the external transmission is prone to chain drop when shifting gears, which cannot meet people's personalized adjustment needs for pedaling force when riding. A very small number of transmissions use CVP (round ball) friction transmissions (Newfinch N360 in the United States). This type of transmission can achieve stepless speed change, but the transmission method uses steel ball friction transmission, which has a huge efficiency loss and is heavy, resulting in certain defects in the transmissions currently used on power-assisted bicycles. Technical issues

[0003] The technical problem to be solved by the present invention is to provide a follow-up adjustment component and a continuously variable transmission, aiming to solve the problem that the transmission used on the power-assisted bicycle in the related art still has certain defects. Technical Solutions

[0004] To solve the above technical problems, the first aspect of the present invention provides a follow-up adjustment assembly, which is applied to a continuously variable transmission. The continuously variable transmission includes a first power wheel, a speed generating wheel, and a first speed regulating wheel. The first power wheel is provided with an annular mounting groove, and the annular mounting groove has a first side wall and a second side wall arranged opposite to each other. One end of the follow-up adjustment assembly is slidably assembled on the speed generating wheel, and the other end is accommodated in the annular mounting groove. The first speed regulating wheel is provided with a first trigger structure. The follow-up adjustment assembly includes:

[0005] a base having a first side surface abutting the first side wall and a second side surface spaced apart from the second side wall, the base further having a receiving cavity opening toward the second side wall, a bottom wall of the receiving cavity opposite to the opening forming an angle with the second side wall, and a first position and a second position being defined on the bottom wall of the receiving cavity;

[0006] a locking member, accommodated in the accommodating cavity and slidably assembled on the bottom wall of the accommodating cavity; and

[0007] a driving mechanism, assembled on the base and connected to the locking member, the driving mechanism being configured to cooperate with the first trigger structure to drive the locking member to slide on the bottom wall of the accommodating cavity;

[0008] Among them, when the locking member slides to the first position, the distance between the side of the locking member away from the bottom wall of the accommodating cavity and the first side wall is smaller than the distance between the first side wall and the second side wall; when the locking member slides to the second position, the distance between the side of the locking member away from the bottom wall of the accommodating cavity and the first side wall is greater than the distance between the first side wall and the second side wall.

[0009] Optionally, the driving mechanism includes a driving assembly and a first return member, the driving assembly is assembled on the base and connected to the locking member, the first return member is fixed to the base and connected to the locking member, the driving assembly is used to drive the locking member to slide in the direction of the first return member, and the first return member is used to provide a return force to make the locking member slide in the direction of the driving assembly.

[0010] Optionally, the driving assembly and the first return member are respectively located on opposite sides of the locking member along the sliding direction thereof.

[0011] Optionally, in a direction along the first return member toward the driving assembly, the distance between the bottom wall of the accommodating cavity and the second side surface gradually decreases.

[0012] Optionally, the driving assembly includes a sliding block and a driving member, the sliding block is slidably assembled on the base, the sliding block cooperates with the first trigger structure to slide to the third position or the fourth position, one end of the driving member abuts against the locking member, and the other end passes through the sliding block, and the driving member is movably assembled on the sliding block, and the side wall of the accommodating cavity is provided with a raised area and a recessed area;

[0013] When the sliding block is located at the third position, the other end of the driving member abuts against the raised area, and the locking member is located at the first position; when the sliding block is located at the fourth position, the other end of the driving member abuts against the recessed area, and the locking member is located at the second position.

[0014] Optionally, the sliding direction of the sliding block is perpendicular to the sliding direction of the locking member, the sliding block is provided with a communicating hole, and the driving member is slidably assembled in the communicating hole along the sliding direction of the locking member.

[0015] Optionally, the driving assembly further comprises a guide member fixed to the base and located in the accommodating cavity, the length of the guide member extending perpendicular to the sliding direction of the locking member, and the sliding block is slidably assembled on the guide member.

[0016] Optionally, a first guiding slope is provided at the connection between the recessed area and the raised area, and a second guiding slope is provided at one end of the driving member away from the locking member, and the second guiding slope abuts against the first guiding slope.

[0017] Optionally, the driving assembly further includes a trigger member and a second return member, one end of the second return member is fixed to the base, and the other end is connected to the sliding block, the trigger member is arranged on the sliding block, and the trigger member has a trigger state for driving the sliding block to slide in the direction of the second return member, and the second return member is used to provide a return force to make the sliding block slide in the direction of the trigger member.

[0018] A second aspect of the present invention provides a continuously variable transmission, comprising:

[0019] Fixed seat;

[0020] a first power wheel rotatably mounted on the outer side of the fixing seat, wherein the first power wheel is provided with an annular mounting groove;

[0021] A speed-changing generating wheel is rotatably mounted on the outer side of the fixing seat, wherein the axis of the speed-changing generating wheel is eccentrically arranged relative to the axis of the first power wheel, and a plurality of sliding grooves are arranged on one side of the speed-changing generating wheel at equal intervals along its circumference;

[0022] The follow-up adjustment component as described in any one of the above, one end of which is slidably assembled on the speed generating wheel, and the other end is accommodated in the annular mounting groove, the follow-up adjustment component has a locked state fixed with the first power wheel and an unlocked state capable of sliding circumferentially in the annular mounting groove, the follow-up adjustment component is provided with a plurality of intervals, and the plurality of follow-up adjustment components are matched with the plurality of slide grooves in a one-to-one correspondence, so that the follow-up adjustment component slides radially along the speed generating wheel and rotates circumferentially following the speed generating wheel; the plurality of follow-up adjustment components enclose a concentric circle coaxially arranged with the first power wheel, and at least one of the plurality of follow-up adjustment components is in a locked state, and at least one is in an unlocked state; and,

[0023] The first speed regulating wheel is rotatably assembled on the outer side of the fixing seat. The first speed regulating wheel is coaxially arranged with the first power wheel. The first speed regulating wheel is provided with a first trigger structure for switching the follow-up adjustment component between the locked state and the unlocked state. Beneficial effects

[0024] Compared with the related art, the follow-up adjustment component and the continuously variable transmission in the present invention have the following advantages: by setting a driving structure to drive the locking member to slide on the bottom wall of the accommodating cavity, when the locking member slides to the first position, the distance between the side of the locking member away from the bottom wall of the accommodating cavity and the first side surface is smaller than the distance between the first side wall and the second side wall, so that the follow-up adjustment component can slide circumferentially in the annular mounting groove, that is, the follow-up adjustment component is in an unlocked state; when the locking member slides to the second position, the distance between the side of the locking member away from the bottom wall of the accommodating cavity and the first side surface is larger than the distance between the first side wall and the second side wall, so that the follow-up adjustment component is fixed in the annular mounting groove. The groove is installed, that is, the follow-up adjustment component is in a locked state, the driving mechanism cooperates with the first trigger structure to drive the locking member to slide on the bottom wall of the accommodating cavity so that the locking member switches between the first position and the second position, so that rotating the first speed regulating wheel can obtain multiple follow-up adjustment components with different linear speeds and angular speeds to complete the speed adjustment, so that the continuously variable transmission can be changed in the bicycle in a stationary state, a rotating state and a riding state, and the speed adjustment is convenient; moreover, the follow-up adjustment component has fewer moving parts, a simple structure, a light weight and a small size, which is conducive to improving the stability of the follow-up and reducing the space occupied, thereby realizing the follow-up adjustment control of the continuously variable transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0026] FIG1 is a schematic structural diagram of a continuously variable transmission provided by an embodiment of the present invention;

[0027] 2 is a schematic diagram of the assembly relationship between the speed generating wheel, the first speed regulating wheel and the follow-up regulating assembly in the continuously variable transmission provided by an embodiment of the present invention;

[0028] 3 is a schematic diagram of the assembly relationship between the first power wheel and the follow-up adjustment assembly in the continuously variable transmission provided by an embodiment of the present invention;

[0029] 4 is a schematic structural diagram of a first speed regulating wheel in a continuously variable transmission provided by an embodiment of the present invention;

[0030] FIG5 is a schematic structural diagram of a follow-up adjustment assembly provided in an embodiment of the present invention;

[0031] FIG6 is a schematic structural diagram of the follow-up adjustment assembly provided by an embodiment of the present invention with the upper cover removed;

[0032] 7 is a schematic diagram of a locking member in a follow-up adjustment assembly provided by an embodiment of the present invention when the locking member is in a first position;

[0033] 8 is a schematic diagram of a locking member in a follow-up adjustment assembly provided by an embodiment of the present invention when the locking member is in a second position;

[0034] FIG9 is an exploded view of a follow-up adjustment assembly according to an embodiment of the present invention;

[0035] FIG10 is a schematic structural diagram of a base in a follow-up adjustment assembly provided in an embodiment of the present invention.

[0036] In the accompanying drawings, the various reference numerals represent: 1. base; 11. base; 12. upper cover; 13. accommodating chamber; 131. bottom wall; 14. first side; 15. second side; 16. raised area; 17. recessed area; 18. first guide slope; 2. locking member; 3. sliding block; 31. connecting hole; 4. driving member; 41. second guide slope; 5. guide member; 6. trigger member; 7. first return member; 8. second return member; 9. connecting member; 10. fixing seat; 20. first power wheel; 201. annular mounting groove; 2011. first side wall; 2012. second side wall; 30. speed change generating wheel; 301. slide groove; 40. follow-up adjustment component; 50. first speed regulating wheel; 501. trigger protrusion; 60. second power wheel. Modes for Carrying Out the Invention

[0037] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having 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 are not to be construed as limiting the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0040] Example:

[0041] 1 to 4 , an embodiment of the present invention provides a continuously variable transmission, comprising a fixed seat 10, a first power wheel 20, a speed generating wheel 30, a follow-up adjustment component 40 and a first speed regulating wheel 50. The first power wheel 20 is rotatably assembled on the outer side of the fixed seat 10. The first power wheel 20 is provided with an annular mounting groove 201. The annular mounting groove 201 has a first side wall 2011 and a second side wall 2012 that are oppositely arranged. The speed generating wheel 30 is rotatably assembled on the outer side of the fixed seat 10. The axis of the speed generating wheel 30 is eccentrically arranged relative to the axis of the first power wheel 20. One side of the speed generating wheel 30 is provided with a plurality of slide grooves 301 equidistantly spaced along its circumference. One end of the follow-up adjustment component 40 is slidably assembled on the speed generating wheel 30, and the other end is accommodated in the annular mounting groove 201. The follow-up adjustment component 40 has There is a locked state fixed with the first power wheel 20 and an unlocked state capable of sliding circumferentially in the annular mounting groove 201. A plurality of follow-up adjustment components 40 are arranged at intervals, and a plurality of follow-up adjustment components 40 correspond one-to-one with a plurality of slide grooves 301, so that the follow-up adjustment component 40 slides radially along the speed generating wheel 30 and rotates circumferentially following the speed generating wheel 30; a plurality of follow-up adjustment components 40 are enclosed to form a concentric circle coaxially arranged with the first power wheel 20, and at least one of the plurality of follow-up adjustment components 40 is in a locked state, and at least one is in an unlocked state; the first speed regulating wheel 50 is rotatably assembled on the outside of the fixed seat 10, and the first speed regulating wheel 50 is coaxially arranged with the first power wheel 20. The first speed regulating wheel 50 is provided with a first trigger structure for switching the follow-up adjustment component 40 between a locked state and an unlocked state.

[0042] Since at least one of the multiple follow-up adjustment components 40 is in a locked state and at least one is in an unlocked state, the first power wheel 20 and the speed generating wheel 30 are connected through the follow-up adjustment component 40, so that when one of the first power wheel 20 and the speed generating wheel 30 rotates, the other can be driven to rotate. The follow-up adjustment component 40 can slide along the radial direction of the speed generating wheel 30 and rotate circumferentially with the speed generating wheel 30. The multiple follow-up adjustment components 40 enclose a concentric circle coaxially arranged with the first power wheel 20, so that when the speed generating wheel 30 rotates, the speed generating wheel 30 drives the multiple follow-up adjustment components 40 to slide within the annular mounting groove 201. The follow-up adjustment component 40 undergoes continuous linear velocity and angular velocity changes within the annular mounting groove 201, so that the linear velocity and angular velocity corresponding to the follow-up adjustment component 40 at each position are different. When the first speed regulating wheel 50 rotates, the first trigger structure can switch the follow-up adjustment component 40 between a locked state and an unlocked state, so that rotating the first speed regulating wheel 50 can adjust the linear velocity and angular velocity of the follow-up adjustment component 40 to complete the speed adjustment. Therefore, when the speed of the first power wheel 20 (or the speed generating wheel 30) is constant, the rotation speed of the speed generating wheel 30 (or the first power wheel 20) can be changed by rotating the first speed regulating wheel 50 to achieve stepless speed change, thereby meeting the personalized adjustment requirements of the pedaling force during riding. Moreover, the continuously variable transmission can achieve non-friction continuous stepless speed change, with large torque transmission, high transmission efficiency, light weight and small size.

[0043] It should be noted that one of the first power wheel 20 and the speed-changing wheel 30 is a speed input wheel, and the other is a speed output wheel. For example, the first power wheel 20 is the speed input wheel, and the speed-changing wheel 30 is the speed output wheel. When the speed of the first power wheel 20 is constant, the first speed regulating wheel 50 is rotated to change the rotational speed of the speed-changing wheel 30, thereby achieving stepless speed change. When the speed-changing wheel 30 rotates one revolution (360°) at a constant speed, the follow-up adjustment assembly 40 also rotates one revolution (360°) within the annular mounting groove 201, but at a non-uniform speed. The movement speed of the follow-up adjustment assembly 40 is first continuously accelerated by a certain angle and then continuously decelerated, or first continuously decelerated by a certain angle and then continuously accelerated. The average speed of the speed-changing wheel 30 rotating one revolution (360 degrees) and the average speed of the follow-up adjustment assembly 40 rotating one revolution within the annular mounting groove 201 are consistent.

[0044] Referring to FIG. 1 , in some embodiments, the continuously variable transmission further includes a second power wheel 60 and a second flywheel, with a plurality of spaced-apart follower adjustment assemblies 40 disposed between the second power wheel 60 and the second flywheel. The first flywheel 50 and the second flywheel are meshed and assembled via a gear set. The arrangement between the second power wheel 60, the second flywheel, and the follower adjustment assemblies 40 is similar to the arrangement between the first power wheel 20, the first flywheel 50, and the follower adjustment assemblies 40. The second speed-changing wheel and the first speed-changing wheel are arranged in the same manner, resulting in a two-speed continuously variable transmission. It should be understood that one of the first power wheel 20 and the second power wheel 60 is the input wheel, and the other is the output wheel.

[0045] The following is an explanation of the continuously variable transmission principle:

[0046] As shown in Figure 2, the minimum angle between two adjacent follow-up adjustment assemblies 40 is N, and the maximum angle is M (M is greater than N). The value of M divided by N represents the maximum speed range. The eccentric distance between the speed-shifting wheel 30 and the first power wheel 20 (second power wheel 60) determines the maximum speed ratio. As the two adjacent follow-up adjustment assemblies 40 slide along the circumference of the first power wheel 20 (second power wheel 60) from the minimum angle N to the maximum angle M, the angle between the two adjacent follow-up adjustment assemblies 40 continuously increases from N to M, forming an infinite number of angles, thereby achieving continuously variable speed change.

[0047] Referring to Figures 5 to 10 , the follow-up adjustment assembly 40 includes a base 1, a locking member 2, and a drive mechanism. The base 1 has a first side surface 14 abutting the first side wall 2011 and a second side surface 15 spaced apart from the second side wall 2012. The base 1 also has a receiving cavity 13 opening toward the second side wall 2012. A bottom wall 131 of the receiving cavity 13, disposed opposite the opening, forms an angle with the second side surface 15. The bottom wall 131 of the receiving cavity 13 is configured with a first position and a second position. The locking member 2 is received in the receiving cavity 13 and slidably mounted on the bottom wall 131 of the receiving cavity 13. The drive mechanism is mounted on the base 1 and connected to the locking member 2. The drive mechanism cooperates with the first trigger structure to drive the locking member 2 to slide on the bottom wall 131 of the receiving cavity 13.

[0048] By setting a driving structure to drive the locking member 2 to slide on the bottom wall 131 of the accommodating chamber 13, as shown in FIG7 , when the locking member 2 slides to the first position, the distance between the side of the locking member 2 away from the bottom wall 131 of the accommodating chamber 13 and the first side surface 14 (i.e., the distance K) is smaller than the distance between the first side wall 2011 and the second side wall 2012 (i.e., the groove width of the annular mounting groove 201), so that the follow-up adjustment component 40 can slide circumferentially in the annular mounting groove 201, that is, the follow-up adjustment component 40 is in an unlocked state; as shown in FIG8 , when the locking member 2 slides to the second position, the distance between the side of the locking member 2 away from the bottom wall 131 of the accommodating chamber 13 and the first side surface 14 (i.e., the distance G) is larger than the distance between the first side wall 2011 and the second side wall 2012 (i.e., the groove width of the annular mounting groove 201). The groove width of the groove 201 is less than 200 mm, so that the follow-up adjustment component 40 is fixed in the annular mounting groove 201, that is, the follow-up adjustment component 40 is in a locked state, and the driving mechanism cooperates with the first trigger structure to drive the locking member 2 to slide on the bottom wall 131 of the accommodating cavity 13 so that the locking member 2 switches between the first position and the second position, so that rotating the first speed regulating wheel 50 can obtain multiple follow-up adjustment components 40 with different linear velocities and angular velocities to complete the speed adjustment, so that the continuously variable transmission can be changed in the state of the bicycle being stationary, rotating and riding, and the speed adjustment is convenient; moreover, the follow-up adjustment component 40 has fewer moving parts, a simple structure, a light weight and a small size, which is conducive to improving the stability of the follow-up and reducing the space occupied, thereby realizing the follow-up adjustment control of the continuously variable transmission.

[0049] It should be noted that, for the two working follow-up adjustment components 40, only the one with the faster angular velocity is in a locked state, and the slower one is in an unlocked state and transformed into an overtaking follow-up; when the driven structure with the faster angular velocity is driven to a distance from the second side wall 2012 and transformed into an unlocked state, the slower driven structure is driven to contact with the second side wall 2012 and is in a locked state, and is transformed from an overtaking follow-up to an active state.

[0050] According to actual needs, the locking member 2 can be a cylinder, which can not only make the locking member 2 slide more smoothly in the accommodating cavity 13, but also make the arc surface of the locking member 2 adapt to the second side wall 2012 of the annular mounting groove 201, so that when the locking member 2 contacts the second side wall 2012, the locking member 2 and the first power wheel 20 form a transcending force coupler, completing the mutual fixation between the follow-up adjustment component 40 and the first power wheel 20.

[0051] Please refer to Figures 5, 6 and 9. The drive mechanism includes a drive assembly and a first return member 7. The drive assembly is assembled on the base 1 and connected to the locking member 2. The first return member 7 is fixed to the base 1 and connected to the locking member 2. The drive assembly is used to drive the locking member 2 to slide in the direction of the first return member 7. The first return member 7 is used to provide a return force to make the locking member 2 slide in the direction of the drive assembly, so that the locking member 2 can switch between the first position and the second position. The first return member 7 can be an elastic member, such as a spring; a positioning portion can be provided on the outside of the first locking member 2, and the elastic member is sleeved on the outside of the positioning portion to achieve a connection between the elastic member and the locking member 2; the drive assembly and the locking member 2 can be set to be hinged, or the drive assembly can be set to abut against the locking member 2.

[0052] Referring to Figures 5 and 6 , the drive assembly and the first return member 7 are respectively located on opposite sides of the locking member 2 along its sliding direction. The first return member 7 is located between the locking member 2 and one side wall of the accommodating chamber 13, and the drive assembly is located between the locking member 2 and the other side wall of the accommodating chamber 13. This facilitates the drive assembly driving the locking member 2 to slide toward the first return member 7. The first return member 7 provides a return force that causes the locking member 2 to slide toward the drive assembly. Along the direction of the first return member 7 toward the drive assembly, the distance between the bottom wall 131 of the accommodating chamber 13 and the second side surface 15 gradually decreases. The first position is located at the bottom side of the bottom wall 131 of the accommodating chamber 13, and the second position is located at the top side of the bottom wall 131 of the accommodating chamber 13. As the locking member 2 slides from the first position to the second position, the distance between the side of the locking member 2 away from the bottom wall 131 of the accommodating chamber 13 and the first side surface 14 gradually increases.

[0053] Referring to Figures 5, 6, and 9, the drive assembly includes a sliding block 3 and a driving member 4. The sliding block 3 is slidably mounted on the base 1. The sliding block 3 cooperates with the first trigger structure to slide to the third position or the fourth position. One end of the driving member 4 abuts the locking member 2, and the other end passes through the sliding block 3. The driving member 4 is movably mounted on the sliding block 3. The sidewall of the accommodating cavity 13 is provided with a raised area 16 and a recessed area 17. When the sliding block 3 is in the third position, the other end of the driving member 4 abuts the raised area 16, causing the driving member 4 to extend and press against the locking member 2, sliding toward the first return member 7, thereby positioning the locking member 2 in the first position. When the sliding block 3 is in the fourth position, the other end of the driving member 4 abuts the recessed area 17, causing the driving member 4 to retract, allowing the locking member 2 to slide toward the driving member 4 under the restoring force provided by the first return member 7, thereby positioning the locking member 2 in the second position.

[0054] It should be noted that the length of the driving member 4 is constant, so that when the other end of the driving member 4 abuts against the raised area 16, the driving member 4 will move until the end abutting against the locking member 2 extends toward the first return member 7; when the other end of the driving member 4 abuts against the recessed area 17, the driving member 4 will move until the end abutting against the locking member 2 retracts toward the direction away from the first return member 7.

[0055] Please refer to Figures 5, 6 and 9. The sliding direction of the sliding block 3 is perpendicular to the sliding direction of the locking member 2. The sliding block 3 is provided with a connecting hole 31. The connecting hole passes through the sliding block 3, and the length of the connecting hole extends along the sliding direction of the locking member 2. The driving member 4 is slidably assembled in the connecting hole 31 along the sliding direction of the locking member 2, so that the driving member 4 can slide relative to the sliding block 3 until it abuts against the raised area 16 or the recessed area 17. Specifically, the sliding block 3 can slide up and down relative to the base 1, and the driving member 4 can slide left and right relative to the sliding block 3. When the sliding block 3 slides upward to the fourth position, the driving member 4 slides along with the sliding block 3, and the end of the driving member 4 away from the locking member 2 changes from abutting the raised area 16 to a recessed area 17, so that the end of the driving member 4 abutting the locking member 2 retracts in a direction away from the first return member 7. When the sliding block 3 slides downward to the third position, the driving member 4 slides along with the sliding block 3, and the end of the driving member 4 away from the locking member 2 changes from abutting the recessed area 17 to a raised area 16, so that the end of the driving member 4 abutting the locking member 2 extends in a direction toward the first return member 7. If necessary, the driving member 4 can be cylindrical to make the sliding of the driving member 4 in the connecting hole smoother.

[0056] Please refer to Figures 5 and 9. The drive assembly also includes a guide member 5 fixed to the base 1 and located in the accommodating cavity 13. The guide member 5 can be a guide column. The length of the guide member 5 extends along a sliding direction perpendicular to the locking member 2. The sliding block 3 is slidably assembled on the guide member 5. The guide member 5 can guide the sliding of the sliding block 3, thereby making the sliding of the sliding block 3 smoother.

[0057] Referring to Figures 5, 6, and 10, a first guide slope 18 is provided at the junction of the recessed region 17 and the raised region 16. The first guide slope 18 slopes from the raised region 16 toward the recessed region 17. A second guide slope 41 is provided at the end of the driver 4 away from the locking member 2. The second guide slope 41 can be a conical surface provided at the end of the driver 4 away from the locking member 2. The second guide slope 41 abuts against the first guide slope 18. The provision of the guide slope can reduce the sliding resistance of the driver 4 when switching between the raised region 16 and the recessed region 17, thereby making the sliding of the sliding block 3 smoother. According to actual needs, a boss can be provided on the side wall of the accommodating chamber 13 to form the raised region 16, and the area of ​​the side wall of the accommodating chamber 13 that is lower than the boss serves as the recessed region 17. Alternatively, a groove can be provided on the side wall of the accommodating chamber 13 to form the recessed region 17, and the surface of the side wall of the accommodating chamber 13 serves as the raised region 16.

[0058] Referring to Figures 5, 6, and 9, the drive assembly further includes a trigger member 6 and a second return member 8. One end of the second return member 8 is fixed to the base 1, and the other end is connected to the slider 3. The trigger member 6 is disposed on the slider 3 and has a trigger state that drives the slider 3 to slide toward the second return member 8. The second return member 8 is used to provide a return force that causes the slider 3 to slide toward the trigger member 6, thereby allowing the slider 3 to slide back and forth. The trigger member 6 can be cylindrical and rotatably assembled to the slider 3 so that the trigger member 6 can roll on the surface of the first speed regulating wheel 50, reducing frictional resistance. The trigger member 6 cooperates with the first trigger structure to drive the slider 3 to slide up and down. The second return member 8 can be an elastic member, such as a spring. The base 1 includes a base 11 and an upper cover 12. The upper cover 12 is fixed to the base 11 with a gap therebetween. One end of the elastic member is fixed to the upper cover 12, and the other end passes through the base 11 and is connected to the slider 3. This allows the elastic member to be sufficiently long to provide a sufficient return force.

[0059] It should be noted that the sliding block 3 slides downward under the action of the restoring force provided by the second restoring member 8, and the driving member 4 follows the movement of the sliding block 3 and slides out in the direction of the first restoring member 7. The restoring force provided by the second restoring member 8 is set to be greater than the restoring force provided by the first restoring member 7 to ensure that the driving member 4 pushes against the locking member 2 to slide to the first position.

[0060] Referring to Figures 5, 6, and 9, the follow-up adjustment assembly 40 further includes a connector 9 fixed to the base 1 and slidably assembled in the chute 301. The connector 9 may be a cylinder, and the chute 301 may be a rectangular groove. The cooperation between the cylinder and the rectangular groove helps reduce the friction between the connector 9 and the chute 301, thereby making the connector 9 slide more smoothly on the chute 301. A protective cover may be fixedly mounted on the outer side of the connector 9. The protective cover may be made of a material with a higher hardness, that is, the protective cover has better wear resistance than the connector 9, thereby preventing wear of the connector 9 and improving the service life of the follow-up adjustment assembly 40.

[0061] Referring to FIG. 4 , in some embodiments, the first trigger structure includes a trigger protrusion 501 disposed on the outside of the first speed regulating wheel 50 and protruding relative to the bottom side of the first speed regulating wheel 50. The trigger protrusion 501 extends circumferentially by a predetermined distance, which can range from one-third to one-quarter of the outer circumference of the first speed regulating wheel 50. When the trigger member 6 is not in contact with the trigger protrusion 501, sufficient space is provided for the trigger member 6 to slide downward, allowing the slider 3 to slide downward to the third position under the restoring force provided by the second restoring member 8. When the trigger member 6 is in contact with the trigger protrusion 501, the slider 3 slides upward to the fourth position under the pressure of the trigger member 6.

[0062] It should be understood that when the first speed regulating wheel 50 is rotated, the trigger protrusion 501 on the first speed regulating wheel 50 rotates with the first speed regulating wheel 50, so that the position where the trigger member 6 contacts the trigger protrusion 501 changes, thereby changing the position where the trigger member 6 triggers the sliding block 3 to slide, thereby realizing speed adjustment.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A follow-up adjustment component is applied to a continuously variable transmission. The continuously variable transmission includes a first driving wheel, a speed change generating wheel, and a first speed regulating wheel. The first driving wheel is provided with an annular mounting groove, and the annular mounting groove has a first side wall and a second side wall that are oppositely arranged. One end of the follow-up adjustment component is slidably assembled to the speed change generating wheel, and the other end is received in the annular mounting groove. The first speed regulating wheel is provided with a first triggering structure, and it is characterized in that, The follow-up adjustment assembly includes: a base having a first side surface abutting against the first side wall and a second side surface spaced from the second side wall, the base further having a receiving cavity with an opening facing the second side wall, an included angle being formed between the bottom wall of the receiving cavity opposite to its opening and the second side surface, and a first position and a second position being provided on the bottom wall of the receiving cavity; a locking member received in the receiving cavity and slidably assembled on the bottom wall of the receiving cavity; and a driving mechanism assembled on the base and connected to the locking member, the driving mechanism being used to cooperate with the first triggering structure to drive the locking member to slide on the bottom wall of the receiving cavity; wherein, when the locking member slides to the first position, the distance between the side of the locking member away from the bottom wall of the receiving cavity and the first side surface is less than the distance between the first side wall and the second side wall; when the locking member slides to the second position, the distance between the side of the locking member away from the bottom wall of the receiving cavity and the first side surface is greater than the distance between the first side wall and the second side wall.

2. The follow-up adjustment assembly according to claim 1, wherein The driving mechanism includes a driving component and a first restoring member, the driving component being assembled on the base and connected to the locking member, the first restoring member being fixed to the base and connected to the locking member, the driving component being used to drive the locking member to slide in the direction of the first restoring member, and the first restoring member being used to provide a restoring force for making the locking member slide in the direction of the driving component.

3. The follow-up adjustment assembly according to claim 2, wherein The driving component and the first restoring member are respectively located on opposite sides of the locking member along its sliding direction.

4. The follow-up adjustment component according to claim 3, wherein In the direction from the first restoring member towards the driving component, the distance between the bottom wall of the receiving cavity and the second side surface gradually decreases.

5. The follow-up adjustment assembly according to claim 2, characterized in that The driving component includes a sliding block and a driving member, the sliding block being slidably assembled on the base, the sliding block cooperating with the first triggering structure to slide to a third position or a fourth position, one end of the driving member abutting against the locking member and the other end passing through the sliding block, and the driving member being movably assembled in the sliding block, and a convex region and a concave region being provided on the side wall of the receiving cavity; wherein, when the sliding block is located at the third position, the other end of the driving member abuts against the convex region and the locking member is located at the first position; when the sliding block is located at the fourth position, the other end of the driving member abuts against the concave region and the locking member is located at the second position.

6. The follow-up adjustment assembly according to claim 5, characterized in that, The sliding direction of the sliding block is perpendicular to the sliding direction of the locking member, the sliding block is provided with a communication hole, and the driving member is slidably assembled in the communication hole along the sliding direction of the locking member.

7. The follow-up adjustment assembly according to claim 6, characterized in that, The driving component further includes a guiding member fixed to the base and located in the receiving cavity, the length of the guiding member extending along a direction perpendicular to the sliding direction of the locking member, and the sliding block being slidably assembled on the guiding member.

8. The follow-up adjustment assembly according to claim 5, characterized in that, A first guiding inclined surface is provided at the connection of the concave region and the convex region, and a second guiding inclined surface is provided at the end of the driving member away from the locking member, and the second guiding inclined surface abuts against the first guiding inclined surface.

9. The follow-up adjustment assembly according to claim 5, wherein, The driving assembly further includes a trigger member and a second restoring member. One end of the second restoring member is fixed to the base, and the other end is connected to the sliding block. The trigger member is disposed on the sliding block. The trigger member has a trigger state for driving the sliding block to slide in the direction of the second restoring member, and the second restoring member is configured to provide a restoring force for causing the sliding block to slide in the direction of the trigger member.

10. A continuously variable transmission, characterized in that, Comprising: A fixed seat; A first driving wheel rotatably assembled outside the fixed seat, and the first driving wheel is provided with an annular mounting groove; A speed-changing driving wheel rotatably assembled outside the fixed seat, the axis of the speed-changing driving wheel is eccentrically arranged relative to the axis of the first driving wheel, and a plurality of sliding grooves are arranged on one side of the speed-changing driving wheel at equal circumferential intervals; The follow-up adjustment assembly according to any one of claims 1-9, one end of which is slidably assembled on the speed-changing driving wheel, and the other end is received in the annular mounting groove. The follow-up adjustment assembly has a locked state fixed to the first driving wheel and an unlocked state capable of circumferentially sliding in the annular mounting groove. A plurality of the follow-up adjustment assemblies are provided at intervals, and the plurality of follow-up adjustment assemblies are in one-to-one correspondence with the plurality of sliding grooves, so that the follow-up adjustment assembly slides radially along the speed-changing driving wheel and rotates circumferentially following the speed-changing driving wheel; the plurality of follow-up adjustment assemblies enclose a concentric circle coaxially arranged with the first driving wheel, and at least one of the plurality of follow-up adjustment assemblies is in the locked state and at least one is in the unlocked state; and, A first speed-adjusting wheel rotatably assembled outside the fixed seat, the first speed-adjusting wheel is coaxially arranged with the first driving wheel, and the first speed-adjusting wheel is provided with a first triggering structure for switching the follow-up adjustment assembly between the locked state and the unlocked state.

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