Transmission mechanism, mower and garden device

Abstract

The invention provides a transmission mechanism, a mower and a garden device.The transmission mechanism is used for being arranged in a continuously variable transmission and comprises a gear shifting part, a connecting plate, a speed regulating plate, a sliding rod, a first pull rod, a second pull rod and a rotating assembly; the speed regulating plate is hinged to the rotating assembly through a first pull rod and used for driving the rotating assembly to be switched between the separation state and the combination state. Wherein the speed regulating plate and the connecting plate are coaxially arranged, one end of the second pull rod is fixedly connected with the speed regulating plate and the connecting plate, a sliding groove penetrating through a plate body of the connecting plate is formed in the connecting plate, the first end of the sliding rod is fixed to the gear shifting piece, the first end of the sliding rod penetrates through the sliding groove and slides in the sliding groove, and the gear shifting piece slides in the sliding groove through the sliding rod. And the gear shifting piece is driven to be switched among a forward gear, a reverse gear and a neutral gear. The transmission mechanism solves the technical problem that manual gear shifting is tedious in operation.

Description

Technical Field

[0001] The present disclosure relates to the field of mechanical engineering, and in particular to a transmission mechanism, a lawn mower and a garden device. Background Art

[0002] At present, in a riding lawn mower, when controlling the travel direction and speed of the lawn mower, the travel speed is usually controlled by a pedal, and a gear lever is required. During use, the operator usually needs to adjust the gear lever to the desired gear first and then control the speed by stepping on the pedal. However, this operation method is more troublesome, and the operator may also cause the gear lever to be damaged or even broken due to improper operation during the gear adjustment process.

[0003] No effective solution has been proposed for the above problems. Summary of the invention

[0004] The present disclosure provides a transmission mechanism and a lawn mower, so as to at least solve the technical problems of manual gear shifting and complicated operation in the related art.

[0005] According to one aspect of the present disclosure, a transmission mechanism is provided. The transmission mechanism is used to be arranged in a continuously variable transmission, and includes: a shift member, a connecting plate, a speed regulating plate, a sliding rod, a first pull rod, a second pull rod and a rotating assembly; the speed regulating plate is hinged to the rotating assembly through the first pull rod, and the speed regulating plate is used to drive the rotating assembly to switch between a separated state and a combined state; wherein the speed regulating plate and the connecting plate are coaxially arranged, one end of the second pull rod is fixedly connected to the speed regulating plate and the connecting plate, a sliding groove penetrating the connecting plate body is provided on the connecting plate, the first end of the sliding rod is fixed to the shift member, the first end of the sliding rod penetrates the sliding groove and slides in the sliding groove, the shift member slides in the sliding groove through the sliding rod, and drives the shift member to switch between forward gear, reverse gear and neutral gear.

[0006] Optionally, the slide groove includes a first strip hole, a second strip hole and a third strip hole. When the second end of the slide rod is in the first strip hole, the gear state of the gear adjusting member is reverse gear, when the second end of the slide rod is in the second strip hole, the gear state is neutral gear, and when the second end of the slide rod is in the third strip hole, the gear state is forward gear.

[0007] Optionally, the slide groove also includes a first bending portion and a second bending portion, the first strip hole and the second strip hole are connected through the first bending portion, the second strip hole and the third strip hole are connected through the second bending portion, and when the sliding rod passes through the first bending portion or the second bending portion during movement, it drives the gear adjustment member to rotate.

[0008] Optionally, the rotating component is cylindrical in shape, including a slider and a top block, a first protrusion is provided on the outer surface of the slider, a second protrusion is provided on the inner surface, the other end of the first pull rod is fixedly connected to the first protrusion, and a tooth-like third protrusion is provided on the circular bottom of the top block. In a stationary state, the third protrusion is engaged with the second protrusion.

[0009] Optionally, the third protrusion includes a first bevel and a second bevel, and the slider can rotate along the first bevel or the second bevel during rotation.

[0010] Optionally, the gear-adjusting component includes: a gear-adjusting wrench, a third pull rod, and a gear-shifting mechanism, and the gear-adjusting wrench is hinged to the gear-shifting mechanism via the third pull rod.

[0011] Optionally, the speed regulating plate and the connecting piece are rotatably mounted on the housing of the continuously variable transmission through fasteners.

[0012] According to another aspect of the present disclosure, a lawn mower is provided. The lawn mower includes any transmission mechanism in the embodiments of the present disclosure.

[0013] According to another aspect of the present disclosure, a gardening device is provided. The gardening device includes the transmission mechanism in the embodiment of the present disclosure.

[0014] The second pull rod in the embodiment of the present invention is connected to the connecting plate and the speed regulating plate at the same time. The speed regulating plate drives the rotating component to adjust the speed through the first pull rod. At the same time, the connecting plate drives the gear regulating member to rotate through the opened slide groove and the slide rod running through the slide groove, driving the gear regulating member to shift gears, thereby achieving the purpose of automatic gear shifting and realizing the technical effect of automatically adjusting the gear position when adjusting the speed, thereby solving the technical problems of manual gear shifting and cumbersome operation in related technologies.

[0015] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to better understand the present solution and do not constitute a limitation of the present disclosure.

[0017] Figure 1 is a structural schematic diagram of a transmission mechanism according to an embodiment of the present disclosure;

[0018] Figure 2 is a structural schematic diagram of a continuously variable transmission according to an embodiment of the present disclosure;

[0019] Figure 3 is a structural schematic diagram of a transmission mechanism according to an embodiment of the present disclosure from another perspective;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of a gear shifting wrench 23 in an optional embodiment of the present disclosure;

[0021] Figure 5 is a schematic diagram of the three-dimensional structure of a sliding rod 5 in an optional embodiment of the present disclosure;

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of an optional embodiment of the present disclosure when the gear shifting wrench 23 and the sliding rod 5 are assembled;

[0023] Figure 7 is a top view of the connecting plate 3 in an optional embodiment of the present disclosure;

[0024] Figure 8 is a schematic diagram of a top block 82 and a slider 81 in a rotating assembly 8 in an optional embodiment of the present disclosure;

[0025] Fig. 9 is a schematic structural diagram of a transmission mechanism in a neutral state in an optional embodiment of the present disclosure;

[0026] Fig.10 is a three-dimensional structural diagram of a top block 82 in an optional embodiment of the present disclosure;

[0027] Fig.11 is a three-dimensional structural diagram of the transmission mechanism from a first perspective when the reverse gear speed is at a maximum in an optional embodiment of the present disclosure;

[0028] Fig.12 is a three-dimensional structural diagram of the transmission mechanism from a second perspective when the reverse gear speed is the maximum in an optional embodiment of the present disclosure;

[0029] Fig.13 is a three-dimensional structural diagram of the transmission mechanism from a third perspective when the forward gear speed is at the maximum in an optional embodiment of the present disclosure;

[0030] Fig.14 It is a three-dimensional structural diagram of the transmission mechanism from a fourth perspective when the forward gear speed is maximum in an optional embodiment of the present disclosure.

[0031] Description of reference numerals:

[0032] 1. continuously variable transmission, 110, housing, 12, driving wheel;

[0033] 2. gear adjustment member, 21. connecting portion, 22. first hole, 23. gear adjustment wrench, 24. third pull rod, 25. gear switching mechanism, 26. connecting piece;

[0034] 3. connecting plate, 31. sliding groove, 311. first strip hole, 312. second strip hole, 313. third strip hole, 314. first bending portion, 315. second bending portion, 32. second hole; 33. fourth hole;

[0035] 4. speed regulating plate, 41. third hole, 42. fifth hole;

[0036] 5. sliding rod, 51. first end of the sliding rod, 511. protrusion, 52. second end of the sliding rod;

[0037] 6. a first pull rod, 61. the other end of the first pull rod;

[0038] 7. Second pull rod;

[0039] 8. Rotating assembly, 81. Sliding block, 811. First protrusion, 812. Second protrusion, 82. Top block, 821. Third protrusion, 8211. First hypotenuse, 8212. Second hypotenuse;

[0040] 9. First fastener;

[0041] 10. Second fastener;

[0042] 11. The third fastener. DETAILED DESCRIPTION

[0043] The following is a description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present disclosure, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0045] In the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0046] In the present disclosure, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0047] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0048] Example 1

[0049] See also Figure 1-14 As shown in , the embodiment of the present disclosure provides a transmission mechanism, which is used to be arranged in a continuously variable transmission, including: a gear adjusting member 2, a connecting plate 3, a speed regulating plate 4, a sliding rod 5, a first pull rod 6, a second pull rod 7 and a rotating assembly 8; the speed regulating plate 4 is hinged to the rotating assembly 8 through the first pull rod 6, and the speed regulating plate 4 is used to drive the rotating assembly 8 to switch between a separated state and a combined state; wherein the speed regulating plate 4 and the connecting plate 3 are coaxially arranged, one end of the second pull rod 7 is fixedly connected to the speed regulating plate 4 and the connecting plate 3, and a sliding groove 31 that penetrates the plate body of the connecting plate 3 is provided on the connecting plate 3, the first end of the sliding rod 5 is fixed on the gear adjusting member 2, the first end of the sliding rod 5 penetrates the sliding groove 31, and slides in the sliding groove 31, the gear adjusting member 2 slides in the sliding groove 31 through the sliding rod 5, and drives the gear adjusting member 2 to switch between forward gear, reverse gear and neutral gear.

[0050] Specifically, the rotating assembly 8 can be coaxially connected to the driving wheel 12 of the continuously variable transmission 1. The rotating assembly 8 spirally rises during rotation to change the transmission ratio of the continuously variable transmission 1, thereby achieving the purpose of speed regulation. The more the rotating assembly 8 rises, the faster the speed.

[0051] The above-mentioned rotating component 8 includes a slider 81 and a top block 82. During the rotation process, the slider 82 can rise in a spiral manner and separate from the top block 81, that is, the above-mentioned separation state. When stationary, the slider 81 and the top block 82 are engaged, that is, the above-mentioned combination state.

[0052] Optionally, the rotating component 8 is cylindrical in shape, including a slider 81 and a top block 82. The slider 81 is provided with a first protrusion 811 on its outer surface and a second protrusion 812 on its inner surface. The other end of the first pull rod 6 is fixedly connected to the first protrusion 811. A tooth-like third protrusion 821 is provided on the circular bottom of the top block 82. In a stationary state, the third protrusion 821 is engaged with the second protrusion 812.

[0053] In an alternative embodiment, Figure 8 is a schematic diagram of a top block 82 and a slider 81 in a rotating assembly 8 in an optional embodiment of the present disclosure, Fig. 9 is a schematic diagram of the structure of the transmission mechanism in a neutral state in an optional embodiment of the present disclosure, see Figure 1 and Fig. 9 In the neutral and static state, the second protrusion 812 is engaged with the top block 82 , the rotating assembly 8 is in a combined state, and the slide rod 5 is located in the second strip hole 312 .

[0054] Optionally, the gear-adjusting member 2 comprises: a gear-adjusting wrench 23 , a third pull rod 24 , and a gear-shifting mechanism 25 , and the gear-adjusting wrench 23 is hinged to the gear-shifting mechanism 25 via the third pull rod 24 .

[0055] In an alternative embodiment, see Figure 3 A connecting piece 26 is also fixed on the first fastener 9 for installing the shift wrench 23, and the connecting piece 26 is fixedly connected to the third pull rod 24. The gear switching mechanism 25 includes a paddle and a gear set fixedly connected to the third pull rod 24. When the shift wrench 23 and the second fixing member 10 rotate, the third pull rod 24 is driven to move axially, and the paddle in the gear switching mechanism 25 will switch the meshing state of the gears in the gear set, thereby adjusting the rotation direction of the gear set. The rotation direction includes forward, reverse and no rotation, which correspond to forward gear, reverse gear and neutral gear respectively.

[0056] Optionally, the speed regulating plate 4 and the connecting plate 3 are rotatably mounted on the housing 110 of the continuously variable transmission 1 by means of fasteners. Figure 2 The speed regulating plate 4 and the connecting plate 3 can be mounted on the housing 110 by means of the second fastener 10 .

[0057] The first fastener 9 or the second fastener 10 can be any combination of bolts, studs, nuts, and washers. The nuts can be selected according to actual needs, such as hexagonal nuts, square nuts, etc., and the present disclosure does not limit them. The shift member 2 is provided with a first hole 22, and the first hole 22 matches the shape of the first fastener 9. The first fastener 9 can pass through the first hole 22 to rotatably connect the shift member 2 to the housing 110 of the continuously variable transmission 1.

[0058] The connecting plate 3 is provided with a second hole 32 , the speed regulating plate 4 is provided with a third hole 41 , and the second fastener 10 passes through the second hole 32 and the third hole 41 in sequence to rotatably mount the connecting plate 3 and the speed regulating plate 4 on the housing 110 of the continuously variable transmission 1 .

[0059] In an optional embodiment, the end of the second pull rod 7 away from the connecting plate 3 is connected to a control component, and the control component is a device for controlling the direction of travel and speed of the device installed with the transmission mechanism. For example, the device is a riding lawn mower, and the control component can control the riding lawn mower to move forward and backward, and at the same time control the speed of the riding lawn mower through the control component. For example, the operating end of the control component can be a pedal or a pull rod. If it is a pedal, the user can control the direction of travel by manipulating the rotation direction of the pedal. For example, the rotation direction of the pedal is clockwise, and the gear state is forward gear, and the rotation direction is counterclockwise, and the gear state is reverse gear. The speed is controlled by controlling the rotation angle of the pedal. For example, the larger the rotation angle, the faster the speed. In addition, the device with the control component can be any riding device that can be equipped with the transmission mechanism, such as a lawn mower, a tractor, a snowplow, a seed drill, etc.

[0060] Optionally, a connecting portion 21 is provided on the gear adjusting member 2 , and the first end 51 of the sliding rod 5 is fixed to the connecting portion 21 . The first end 51 of the sliding rod 5 is axially provided with a plurality of evenly distributed protrusions 511 .

[0061] Optionally, the connecting portion 21 is a spline hole.

[0062] In an alternative embodiment, see Figure 4 , Figure 5 and Figure 6 The slide rod 5 may be a spline shaft, the plurality of evenly distributed protrusions 511 axially arranged at the first end 51 of the slide rod 5 are splines, and the second end 52 of the slide rod 5 is a smooth end.

[0063] The above-mentioned connecting plate 3 is also provided with a fourth hole 33, and the above-mentioned speed regulating plate 4 is also provided with a fifth hole 42. One end of the second pull rod 7 passes through the fifth hole 42 and the fourth hole 33 successively, and is fixedly connected to the speed regulating plate 4 and the connecting plate 3 respectively. When the second pull rod moves axially, it drives the connecting plate 3 and the speed regulating plate 4 to rotate in the same direction.

[0064] In the embodiment disclosed in the present invention, the second pull rod 7 is connected to the connecting plate 3 and the speed regulating plate 4 at the same time. The speed regulating plate 4 drives the rotating component 8 to adjust the speed through the first pull rod 6. At the same time, the connecting plate 3 drives the gear regulating member 2 to rotate through the opened slide groove 31 and the slide rod 5 running through the slide groove 31, and drives the gear regulating member 2 to shift gears, thereby achieving the purpose of automatic gear shifting and realizing the technical effect of automatically adjusting the gear position when adjusting the speed, thereby solving the technical problems of manual gear shifting and cumbersome operation in related technologies.

[0065] Optionally, the slide groove 31 includes a first strip hole 311, a second strip hole 312 and a third strip hole 313. When the second end 52 of the slide rod 5 is in the first strip hole 311, the gear state of the gear adjusting member 2 is reverse gear, when the second end 52 of the slide rod 5 is in the second strip hole 312, the gear state is neutral gear, and when the second end 52 of the slide rod 5 is in the third strip hole 313, the gear state is forward gear.

[0066] Optionally, the slide groove 31 also includes a first bending portion 314 and a second bending portion 315, the first bar hole 311 and the second bar hole 312 are connected by the first bending portion 314, and the second bar hole 312 and the third bar hole 313 are connected by the second bending portion 315, and when the sliding rod passes through the first bending portion 314 or the second bending portion 315 during movement, it drives the gear adjustment member 2 to rotate.

[0067] In an alternative embodiment, Figure 7 is a top view of the connecting plate 3 in an optional embodiment of the present disclosure, such as Figure 7 As shown, the first bending portion 314 has two bending points, and the second bending portion 315 has one bending point. It should be noted that when the slide rod 5 is located between the two bending points of the first bending portion 314, it is usually in a critical state between neutral and reverse gear, and the transmission mechanism remains stationary.

[0068] Optionally, the third protrusion 821 includes a first oblique edge 8211 and a second oblique edge 8212 , and the slider 81 can rotate along the first oblique edge 8211 or the second oblique edge 8212 during the rotation process.

[0069] As an optional embodiment, when the sliding rod is located in the first bar-shaped hole 311, the slider 81 rotates counterclockwise along the second bevel 8212 during rotation, and when the sliding rod is located in the third bar-shaped hole 313, the slider 81 rotates clockwise along the first bevel 8211.

[0070] Optionally, the slope of the first oblique side 8211 is smaller than the slope of the second oblique side 8212 .

[0071] As an optional embodiment, Fig.10 82 is a three-dimensional structural diagram of a top block 82 in an optional embodiment of the present disclosure. The length and inclination of the first oblique side 8211 and the second oblique side 8212 can be adjusted according to actual needs. Figure 2 As shown, the rotating component 8 is arranged below the driving wheel 12 of the continuously variable transmission 1. During the rising process of the slider 81 along the first bevel 8211 or the second bevel 8212, the transmission ratio of the pulley assembly can be adjusted to achieve the purpose of acceleration. Conversely, if deceleration is required, the slider 81 can be lowered along the first bevel 8211 or the second bevel 8212 to achieve deceleration according to the current gear state.

[0072] It should be noted that the slope of the first bevel portion or the slope of the second bevel portion can be adjusted according to actual acceleration requirements during the actual research and development process.

[0073] Fig.11 is a three-dimensional structural diagram of the transmission mechanism from a first perspective when the reverse gear speed is at a maximum in an optional embodiment of the present disclosure, Fig.12 is a three-dimensional structural diagram of the transmission mechanism from a second perspective when the reverse gear speed is the maximum in an optional embodiment of the present disclosure, such as Fig.11 and Fig.12 As shown, when the reverse gear speed is maximum, the rotating assembly 8 becomes longer in the height direction. Fig.13 is a three-dimensional structural diagram of the transmission mechanism from a third perspective when the forward gear speed is at the maximum in an optional embodiment of the present disclosure, Fig.14 13 and 14 are three-dimensional structural diagrams of the transmission mechanism from a fourth perspective when the forward gear speed is at a maximum in an optional embodiment of the present disclosure, as shown in FIG. Fig.14 As shown, when the forward gear speed is the maximum, the rotating assembly 8 becomes longer in the height direction. It should be noted that Fig.13 and Fig.14 In the embodiment, the other end 61 of the first stem is connected to the rotating assembly 8 in actual situations. Fig.13 and Fig.14 The other end 61 of the first clamp and the rotating assembly 8 are separated in the drawing only to illustrate a possible implementation.

[0074] Optionally, a third fastener 11 is provided on the contact surface between the speed regulating plate 4 and the first pull rod 6 .

[0075] Specifically, the third fastener 11 is used to prevent the speed regulating plate 4 from moving axially along the first pull rod 7, and can be any fastener, such as common fasteners such as a retaining spring and a baffle, or a combination of common fasteners.

[0076] Example 2

[0077] According to another aspect of the present disclosure, a lawn mower is provided. The gardening device includes any transmission mechanism in Embodiment 1 of the present disclosure.

[0078] The above-mentioned lawn mower is a riding lawn mower.

[0079] Example 3

[0080] According to another aspect of the present disclosure, a gardening device is provided, which includes any transmission mechanism in Embodiment 1 of the present disclosure.

[0081] The above-mentioned gardening equipment includes but is not limited to riding lawn mowers, sprinklers and snowplows.

[0082] Example 4

[0083] According to another aspect of the present disclosure, a vehicle is provided, which includes any transmission mechanism in Embodiment 1 of the present disclosure.

[0084] The above-mentioned vehicles include but are not limited to farmer vehicles, agricultural tractors, tillers, and agricultural seeding vehicles.

[0085] The above specific implementations do not constitute a limitation on the protection scope of the present disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A transmission mechanism, the transmission mechanism being used to be arranged in a continuously variable transmission (1), characterized in that: include: A gear adjustment member (2), a connecting plate (3), a speed adjustment plate (4), a sliding rod (5), a first pull rod (6), a second pull rod (7) and a rotating assembly (8); The speed regulating plate (4) is hingedly connected to the rotating assembly (8) via the first pull rod (6), and the speed regulating plate (4) is used to drive the rotating assembly (8) to switch between a separated state and a combined state; The speed regulating plate (4) and the connecting plate (3) are coaxially arranged, one end of the second pull rod (7) is fixedly connected to the speed regulating plate (4) and the connecting plate (3), the connecting plate (3) is provided with a slide groove (31) penetrating the plate body of the connecting plate (3), the first end of the slide rod (5) is fixed to the gear adjusting member (2), the first end of the slide rod (5) penetrates the slide groove (31) and slides in the slide groove (31), the gear adjusting member (2) slides in the slide groove (31) through the slide rod (5), and drives the gear adjusting member (2) to switch between forward gear, reverse gear and neutral gear.

2. The transmission mechanism according to claim 1, characterized in that: The slide groove (31) comprises a first strip hole (311), a second strip hole (312) and a third strip hole (313); when the second end of the slide rod (5) is in the first strip hole (311), the gear state of the gear adjustment member (2) is the reverse gear; when the second end of the slide rod (5) is in the second strip hole (312), the gear state is the neutral gear; and when the second end of the slide rod (5) is in the third strip hole (313), the gear state is the forward gear.

3. The transmission mechanism according to claim 2, characterized in that: The slide groove (31) further comprises a first bending portion (314) and a second bending portion (315); the first strip hole (311) and the second strip hole (312) are connected via the first bending portion (314); the second strip hole (312) and the third strip hole (313) are connected via the second bending portion (315); when the slide rod (5) passes through the first bending portion (314) or the second bending portion (315) during movement, the gear adjustment member (2) is driven to rotate.

4. The transmission mechanism according to claim 1, characterized in that: The rotating assembly (8) is cylindrical in shape and includes a slider (81) and a top block (82). The slider (81) is provided with a first protrusion (811) on its outer surface and a second protrusion (812) on its inner surface. The other end of the first pull rod (6) is fixedly connected to the first protrusion (811). The top block (82) is provided with a third tooth-like protrusion (821) on its circular bottom. In a stationary state, the third protrusion (821) is meshed with the second protrusion (812).

5. The transmission mechanism according to claim 4, characterized in that: The third protrusion (821) includes a first oblique edge (8211) and a second oblique edge (8212), and the slider (81) can spirally rise along the first oblique edge (8211) or the second oblique edge (8212) during the rotation process.

6. The transmission mechanism according to claim 5, characterized in that: The slope of the first oblique side (8211) is smaller than the slope of the second oblique side (8212).

7. The transmission mechanism according to claim 1, characterized in that: The gear shifting member (2) comprises: a gear shifting wrench (23), a third pull rod (24), and a gear position switching mechanism (25); the gear shifting wrench (23) is hingedly connected to the gear position switching mechanism (25) via the third pull rod (24).

8. The transmission mechanism according to claim 1, characterized in that: The speed regulating plate (4) and the connecting plate (3) are rotatably mounted on the housing (110) of the continuously variable transmission (1) via fasteners.

9. A lawn mower, characterized in that: The lawn mower comprises the transmission mechanism according to any one of claims 1-8.

10. A gardening device, characterized in that: The gardening device comprises the transmission mechanism according to any one of claims 1-8.

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