Adjustable seat and motorcycle

Abstract

This invention discloses an adjustable seat and a motorcycle, relating to the field of seat equipment technology. The adjustable seat includes: a seat body, a mounting device, a first drive assembly, a second drive assembly, and a controller; the seat body is mounted on the mounting device; the mounting device includes a fixing assembly, a first motion assembly disposed on the fixing assembly, and a second motion assembly movably mounted on the first motion assembly; the second motion assembly has a vertical component for its movement; the first drive assembly is connected to the first motion assembly and drives the first motion assembly to move the second motion assembly and the seat body along the front-rear direction of the seat body; the second drive assembly is connected to the second motion assembly and drives the second motion assembly to move the seat body; both the first and second drive assemblies are connected to the controller. Using the adjustable seat provided by this invention, the height and position of the seat body along the front-rear direction of the motorcycle can be adjusted.

Description

Technical Field

[0001] This invention relates to the field of seating equipment technology, and more specifically, to an adjustable seat. Furthermore, this invention also relates to a motorcycle including the aforementioned adjustable seat. Background Technology

[0002] Currently, due to factors such as limited space and design challenges, adjustable motorcycle seats have not been considered. Even those adjustable motorcycle seats offer only simple mechanical adjustments and cannot be adjusted while the vehicle is in motion.

[0003] Because different users have different body sizes, a non-adjustable saddle can affect the riding experience.

[0004] In conclusion, how to provide a seat with adjustable position is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide an adjustable seat that can adjust the height of the seat and its position in the forward and backward direction of the motorcycle, so as to accommodate users of different heights.

[0006] Another object of the present invention is to provide a motorcycle including the above-described adjustable seat.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] An adjustable seat includes:

[0009] Seat body;

[0010] The mounting device includes a fixing component fixed to the motorcycle frame, a first moving component movable along the front-rear direction of the seat body and disposed on the fixing component, and a second moving component movably mounted on the first moving component; the second moving component has a vertical component in its direction of movement.

[0011] A first drive component is connected to the first motion component and drives the first motion component to move the second motion component and the seat body along the front-back direction of the seat body;

[0012] The second drive component is connected to the second motion component and drives the second motion component to move the seat body.

[0013] The controller, the first drive component and the second drive component are both connected to the controller.

[0014] Optionally, the fixing component includes a slide rail, and the first moving component includes a base slidably disposed along the slide rail, the slide rail extending in the longitudinal direction of the motorcycle;

[0015] The base has a self-lubricating housing and a guide rail slider installed at its bottom. The self-lubricating housing and the guide rail slider are interference-fitted, and the guide rail slider and the self-lubricating housing together are slidably mounted on the slide rail.

[0016] Optionally, the first driving component includes:

[0017] The first drive motor is connected to the controller;

[0018] The first worm gear is connected to the output end of the first drive motor and is driven to rotate by the first drive motor;

[0019] The first worm gear meshes with the first worm.

[0020] The lead screw is coaxial with and rotates synchronously with the first worm gear, and the lead screw is threadedly connected to the base.

[0021] Optionally, the length direction of the first drive motor is arranged along the width direction of the seat body, and along the front-rear direction of the seat body, the first drive assembly is disposed on the rear side of the base.

[0022] Optionally, the second motion component includes:

[0023] An active arm assembly includes at least one active arm, one end of which is rotatably connected to the first motion assembly;

[0024] The first linkage assembly includes at least one first link, one end of which is rotatably connected to the first motion assembly.

[0025] The second linkage assembly includes at least one second linkage, one end of which is rotatably connected to the other end of the first linkage, and the other end of which is rotatably connected to the other end of the active arm; so that the active arm, the second linkage, the first linkage, and the first motion component are combined into a parallelogram linkage structure;

[0026] The active arm assembly is connected to the second drive assembly.

[0027] Optionally, the second linkage assembly includes at least two second linkages spaced apart along the width direction of the seat body, and the second linkages are connected to each other by a plurality of third linkages;

[0028] The number of active arms and first links are both two. The two active arms are symmetrically arranged on both sides of the width direction of the second link assembly. One of the two active arms is rotatably connected to one of the second links, and the other of the two active arms is rotatably connected to the other second link. The two first links are symmetrically arranged on both sides of the width direction of the second link assembly. One of the two first links is rotatably connected to one of the second links, and the other of the two first links is rotatably connected to the other second link.

[0029] Optionally, the second link includes a first extension segment extending in a first direction and a second extension segment extending in a second direction. One end of the first extension segment is connected to the active arm assembly, and the other end of the first extension segment is connected to the first link assembly. The angle between the second extension segment and the first extension segment is an obtuse angle, and the second extension segment is inclined upward along the extension direction of the first extension segment.

[0030] Optionally, the second driving component includes:

[0031] The second drive motor is connected to the controller;

[0032] The second worm gear is connected to the output end of the second drive motor and is driven to rotate by the second drive motor;

[0033] The second worm gear meshes with the second worm.

[0034] An irregularly shaped internal gear ring is fixed to the active arm assembly, and driven teeth arranged in an arc shape are provided on the inner side of the irregularly shaped internal gear ring.

[0035] The driving gear meshes with the driven gear of the irregularly shaped internal gear ring;

[0036] The drive shaft is connected at one end to the second worm gear and at the other end to the drive gear, so that the drive gear rotates synchronously with the second worm gear.

[0037] Optionally, a cushioning rubber pad is provided at the bottom of the seat body;

[0038] And / or, shock-absorbing rubber is provided in the mounting holes of the seat body.

[0039] A motorcycle includes a frame body and a seat mounted on the frame body, the seat being an adjustable seat as described in any of the preceding claims.

[0040] When using the adjustable seat provided by this invention, the first drive component is controlled by the controller to drive the first motion component to move in the front-to-back direction, according to the user's height and body shape; the second drive component is controlled by the controller to drive the second motion component to move in the vertical direction, so that the seat body can be raised and lowered. The height and position of the seat body in the front-to-back direction of the motorcycle can be adjusted to suit users with different needs.

[0041] In addition, the present invention also provides a motorcycle including the aforementioned adjustable seat. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0043] Figure 1 An exploded view of the adjustable seat provided by the present invention;

[0044] Figure 2 A schematic diagram of a specific embodiment of the adjustable seat provided by the present invention;

[0045] Figure 3 An exploded view of a portion of the structure of the second motion component;

[0046] Figure 4 An exploded view of a portion of the structure of the first moving component;

[0047] Figure 5 This is a schematic diagram of the movement stroke of the second motion component.

[0048] Figures 1-5 middle:

[0049] 1. Mechanism mounting horizontal tube A, 2. Mechanism mounting bushing, 3. Guide rail A, 4. Mechanism mounting horizontal tube B, 5. Guide rail front limit block, 6. Guide rail B, 7. Guide rail fixing right angle block, 8. Self-lubricating housing, 9. Guide rail slider, 10. Second motor housing, 11. Second motor guard, 12. Second drive motor, 13. Second worm gear, 14. Second motor inner housing, 15. Drive gear, 16. Second bearing, 17. Transmission shaft, 18. Second worm gear, 19. Second sealing ring, 20. Second motor fixing plate, 21. First connecting rod A, 22. Front third connecting rod, 23. First connecting rod B, 24. Middle third connecting rod, 25. 26. Right second link, 27. Rear third link, 28. Left second link, 29. Locking clip, 30. Active arm connecting shaft, 31. First motor fixing plate, 32. Lead screw, 33. First motor inner housing, 34. First worm gear, 35. First bearing, 36. First worm, 37. First sealing ring, 38. First motor outer housing, 39. First motor cover, 40. First motor, 41. Active arm A, 42. Irregular internal gear ring, 43. Base, 44. Base fixing right angle block, 45. Seat cushion base, 46. Seat cushion cushioning rubber, 47. Seat body, 48. Shock-absorbing rubber, 49. Active arm B, 40. Main rotating shaft. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] The core of this invention is to provide an adjustable seat that can adjust the height and position of the seat in the forward and backward direction of the motorcycle, so as to accommodate users of different heights.

[0052] Another core aspect of this invention is to provide a motorcycle including the aforementioned adjustable seat.

[0053] Please refer to Figures 1 to 5 .

[0054] This specific embodiment discloses an adjustable seat, including: a seat body 46, a mounting device, a first drive component, a second drive component, and a controller; the seat body 46 is mounted on the mounting device; the mounting device includes a fixing component fixed to a motorcycle frame, a first motion component movable along the front-rear direction of the seat body 46 and disposed on the fixing component, and a second motion component movably mounted on the first motion component; the motion direction of the second motion component has a vertical lifting component; the first drive component is connected to the first motion component and drives the first motion component to move the second motion component and the seat body 46 along the front-rear direction of the seat body 46; the second drive component is connected to the second motion component and drives the second motion component to move the seat body 46; both the first drive component and the second drive component are connected to the controller.

[0055] It should be noted that, in this specific embodiment, the second motion component can directly rise and fall in the vertical direction, thereby driving the seat body 46 to rise and fall in the vertical direction; or the second motion component can move in a direction with a vertical component, having both a horizontal and a vertical component during the movement, thereby driving the seat body 46 to rise and fall in the vertical direction while moving horizontally; or the second motion component can be rotatable or swingable, driving the seat body 46 to rotate or swing during the rotation or swing of the second motion component, having a vertical motion component during the rotation or swing of the seat body 46, thereby achieving vertical rising and falling; or other structures that meet the requirements, specifically determined according to the actual situation, which will not be elaborated here.

[0056] In using the adjustable seat provided in this specific embodiment, the controller controls the first drive component to move the first motion component according to the user's height and body shape, causing the seat body 46 to move in the front-to-back direction; the controller also controls the second drive component to move the second motion component, causing the seat body 46 to rise and fall vertically. The height and position of the seat body 46 in the front-to-back direction of the motorcycle can be adjusted to suit different user needs. Furthermore, compared to a manual adjustment structure, in this specific embodiment, the movements of both the first and second drive components are controlled by the controller. Even while the motorcycle is in motion, the controller can control the movements of the first and second drive components to adjust the height and position of the seat body 46 in the front-to-back direction.

[0057] In one specific embodiment, the fixing component includes a slide rail, and the first moving component includes a base 42 that is slidably disposed along the slide rail, the slide rail extending along the front-rear direction of the motorcycle; a self-lubricating housing 8 and a guide rail slider 9 are installed at the bottom of the base 42, the self-lubricating housing 8 and the guide rail slider 9 are interference-fitted, and the guide rail slider 9 and the self-lubricating housing 8 are slidably mounted on the slide rail as a whole.

[0058] In this specific embodiment, the self-lubricating housing 8 can be a polyurethane self-lubricating housing 8, which can play a role in shock absorption and noise reduction.

[0059] Specifically, the first drive assembly may include a first drive motor, a first worm 35, a first worm wheel 33, and a lead screw 31. The first drive motor is connected to the controller; the first worm 35 is connected to the output end of the first drive motor and is driven to rotate by the first drive motor; the first worm wheel 33 meshes with the first worm 35; the lead screw 31 is coaxial with the first worm wheel 33 and rotates synchronously, and the lead screw 31 is threadedly connected to the base 42.

[0060] The length direction of the first drive motor is set along the width direction of the seat body 46, and along the front and rear direction of the seat body 46, the first drive assembly is set on the rear side of the base 42.

[0061] In practical use, the controller controls the rotation of the first drive motor, which drives the first worm 35 to rotate. The first worm 35 drives the first worm wheel 33 to rotate. During the rotation of the first worm wheel 33, the lead screw 31 rotates synchronously. The lead screw 31 is threadedly connected to the base 42. During the rotation of the lead screw 31, the base 42 will slide relative to the slide rail in the front-back direction of the motorcycle, thereby driving the seat body 46 to slide in the front-back direction of the motorcycle.

[0062] In one specific embodiment, the second motion component includes an active arm assembly, a first link assembly, and a second link assembly. The active arm assembly includes at least one active arm, one end of which is rotatably connected to the first motion component. The first link assembly includes at least one first link, one end of which is rotatably connected to the first motion component. The second link assembly includes at least one second link, one end of which is rotatably connected to the other end of the first link, and the other position of the second link is rotatably connected to the other end of the first active arm. This allows the active arm, second link, first link, and first motion component to be combined into a parallelogram link structure. The active arm assembly is connected to the second drive assembly.

[0063] It should be noted that in this specific embodiment, one end of the second link is connected to the other end of the first link, the active arm and the first link are respectively connected to different positions of the second link, and the active arm and the first link are spaced apart along the extension direction of the second link.

[0064] Specifically, the second linkage assembly may include at least two second linkages spaced apart along the width direction of the seat body 46, and the second linkages are connected by a plurality of third linkages; the number of active arms and first linkages are both two, with the two active arms symmetrically arranged on both sides of the width direction of the second linkage assembly; one of the two active arms is rotatably connected to one of the second linkages, and the other of the two active arms is rotatably connected to the other second linkage; the two first linkages are symmetrically arranged on both sides of the width direction of the second linkage assembly; one of the two first linkages is rotatably connected to one of the second linkages, and the other of the two first linkages is rotatably connected to the other second linkage.

[0065] To better adapt to the shape of the seat body 46, the second link includes a first extension section extending in a first direction and a second extension section extending in a second direction. One end of the first extension section is connected to the active arm assembly, and the other end of the first extension section is connected to the first link assembly. The angle between the second extension section and the first extension section is an obtuse angle, and the second extension section is inclined upward along the extension direction of the first extension section, so that the second link can better support the seat body 46.

[0066] Based on the above embodiments, the second drive assembly includes a second drive motor 12, a second worm 13, a second worm wheel 18, a shaped internal gear ring 41, a drive gear 15, and a transmission shaft 17: the second drive motor 12 is connected to the controller; the second worm 13 is connected to the output end of the second drive motor 12 and is driven to rotate by the second drive motor; the second worm wheel 18 meshes with the second worm 13; the shaped internal gear ring 41 is fixed to the drive arm assembly, and the inner side of the shaped internal gear ring 41 is provided with driven teeth arranged in an arc shape; the drive gear 15 meshes with the driven teeth of the shaped internal gear ring 41; one end of the transmission shaft 17 is connected to the second worm wheel 18, and the other end is connected to the drive gear 15, so that the drive gear 15 and the second worm wheel 18 rotate synchronously.

[0067] In practical use, the controller controls the second drive motor 12 to drive the second worm gear 13 to rotate. The second worm gear 13 drives the second worm wheel 18 to rotate. During the rotation of the second worm wheel 18, the transmission shaft 17 rotates. The transmission shaft 17 drives the drive gear 15 to rotate. The drive gear 15 oscillates with the irregular internal gear ring 41. During the oscillation of the irregular internal gear ring 41, the drive arm oscillates. The parallelogram linkage structure formed by the drive arm, the second connecting rod, the first connecting rod, and the first motion component moves under the drive of the drive arm. Figure 5 As shown, the first link rotates, thereby causing the second link to swing. During the swinging process of the second link, the seat body 46 swings, and the seat body 46 has a vertical lifting component and a horizontal displacement component during the swinging process. Figure 5As shown, during the swinging process, the vertical component of the seat body 46 is h, and the horizontal component is L.

[0068] In one specific embodiment, a cushion cushioning rubber 45 is provided at the bottom of the seat body 46; and / or, a shock-absorbing rubber 47 is provided in the mounting hole of the seat body 46. Specifically, the shock-absorbing rubber 47 can be a shock-absorbing I-beam rubber. The cushion cushioning rubber 45 and the shock-absorbing rubber 47 can effectively improve the shock absorption effect.

[0069] Combination Figure 1As shown, in a specific embodiment, the adjustable seat provided by the present invention includes a mechanism mounting tube A1, a mechanism mounting bushing 2, a guide rail A3, a mechanism mounting tube B4, a guide rail front limit block 5, a guide rail B6, a guide rail fixing right-angle block 7, a self-lubricating housing 8, a guide rail slider 9, a second motor housing 10, a second motor guard 11, a second drive motor 12, a second worm gear 13, a second motor inner housing 14, a drive gear 15, a second bearing 16, a transmission shaft 17, a second worm wheel 18, a second sealing ring 19, a second motor fixing plate 20, a first connecting rod A21, a front third connecting rod 22, a first connecting rod B23, a middle third connecting rod 24, a right second connecting rod 25, a rear third connecting rod 26, a left second connecting rod 27, a locking clip 28, a drive arm connecting shaft 29, a first motor fixing plate 30, and a lead screw 31. The components include: first motor inner housing 32, first worm gear 33, first bearing 34, first worm 35, first sealing ring 36, first motor outer housing 37, first motor guard 38, first motor 39, active arm A40, irregular internal gear ring 41, base 42, base fixing right angle block 43, seat cushion base 44, seat cushion cushioning rubber 45, seat body 46, shock-absorbing rubber 47, active arm B48, and main rotating shaft 49. Specifically, the mechanism mounting horizontal tube A1 and mechanism mounting horizontal tube B4 are connected to the frame by T-bolts, and the guide rail A3 and guide rail B6 are fixed to the mechanism mounting horizontal tube A1 and mechanism mounting horizontal tube B4 by the guide rail front limit block 5, the guide rail fixing right angle block 7, and the mechanism mounting bushing 2 using T-bolts. After the self-lubricating housing 8 is interference-fitted with the guide rail slider 9, it is fixed to the bottom of the base 42 by screws. During normal operation, the base 42 can slide on guide rails A3 and B6. The output shaft of the second drive motor 12 is a hexagonal shaft, which mates with the internal hexagonal hole of the second worm 13. The second worm 13 and the second worm wheel 18 are combined to form a worm gear pair. The second worm wheel 18 and the transmission shaft 17 are also fitted with internal hexagonal holes. The drive gear 15 has an internal hexagonal hole that mates with the transmission shaft 17. The drive gear 15 is fixed to one end of the transmission shaft 17 by bolts. The second drive assembly also includes a second motor housing 10, a second motor inner housing 14, and a second sealing ring 19 disposed between the second motor housing 10 and the second motor inner housing 14. The second sealing ring 19 provides a sealing function and prevents dust and rainwater from interfering with the motor. The second bearing 16 is installed at both ends of the second worm 13 and the second worm wheel 18, which can reduce wear and prevent axial movement. The entire second drive assembly is mounted on the second motor mounting plate 20, which is fixed to the base 42 by two base fixing right angle blocks 43 and bolts in other positions.

[0070] In the second drive assembly, the driving gear 15 and the irregular internal gear ring 41 are gear meshed and driven. The irregular driven internal gear ring is fixed to the driving arm A40 by bolts. The driving arm A40 and the driving arm B48 are fixed into a whole by two driving arm connecting shafts 29 and nuts. The left second link 27 and the right second link 25 are fixed into a whole structure by the front third link 22, the middle third link 24, the rear third link 26 and nuts. The driving arm A40, the driving arm B48, the main rotating shaft 49, the first link A21, the first link B23, the left second link 27, the right second link 25, the front third link 22, the middle third link 24, and the rear third link 26 are combined to form a parallelogram four-bar linkage mechanism.

[0071] The power output from the second motor is ultimately converted into the rotational motion of the active arm A40, active arm B48, first link A21, and first link B23, with a maximum rotation angle of 60°.

[0072] like Figure 1 , Figure 2 As shown, the seat base 44 is fixed to the left second link 27 and the right second link 25 by bolts; the front end of the entire motorcycle seat body 46 is clipped onto the seat base 44, and the rear end is fixed onto the seat base 44 by bolts.

[0073] The first motor 39 is fixed to the first motor mounting plate 30 by bolts. The first motor mounting plate 30 is fixed to the guide rail A3 and guide rail B6 by four guide rail fixing right angle blocks 7. The lead screw 31 is engaged with the first worm gear 33 through an internal hexagonal socket and is fixed and limited by the first bearing 34. The lead screw 31 and the base 42 are connected by threads.

[0074] In addition to the adjustable seat mentioned above, the present invention also provides a motorcycle including a frame body and the adjustable seat disclosed in the above embodiments. The structure of other parts of the motorcycle is described in the prior art and will not be repeated here.

[0075] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. Any combination of all embodiments provided by this invention is within the scope of protection of this invention and will not be elaborated upon here.

[0076] The adjustable seat and motorcycle provided by this invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this invention. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. An adjustable seat, characterized in that, include: Seat body (46); Mounting device, wherein the seat body (46) is mounted on the mounting device; The mounting device includes a fixing component fixed to the motorcycle frame, a first moving component movable along the front-rear direction of the seat body (46) and disposed on the fixing component, and a second moving component movably mounted on the first moving component; the second moving component has a vertical component in its direction of movement. The first drive component is connected to the first motion component and drives the first motion component to move the second motion component and the seat body (46) along the front and rear direction of the seat body (46); The second drive component is connected to the second motion component and drives the second motion component to move the seat body (46); The controller, wherein both the first drive component and the second drive component are connected to the controller; The second motion component includes: An active arm assembly includes at least one active arm, one end of which is rotatably connected to the first motion assembly; The first linkage assembly includes at least one first link, one end of which is rotatably connected to the first motion assembly. The second linkage assembly includes at least one second linkage, one end of which is rotatably connected to the other end of the first linkage, and the other end of which is rotatably connected to the other end of the active arm; so that the active arm, the second linkage, the first linkage, and the first motion component are combined into a parallelogram linkage structure; The active arm assembly is connected to the second drive assembly; The second driving component includes: The second drive motor (12) is connected to the controller; The second worm (13) is connected to the output end of the second drive motor (12) and is driven to rotate by the second drive motor (12); The second worm gear (18) meshes with the second worm (13); An irregularly shaped internal gear ring (41) is fixed to the active arm assembly, and the inner side of the irregularly shaped internal gear ring (41) is provided with driven teeth arranged in an arc shape; The driving gear (15) meshes with the driven gear of the irregular internal gear ring (41); The drive shaft (17) is connected at one end to the second worm gear (18) and at the other end to the drive gear (15) so that the drive gear (15) and the second worm gear (18) rotate synchronously.

2. The adjustable chair of claim 1, wherein, The fixed component includes a slide rail, and the first moving component includes a base (42) slidably disposed along the slide rail, the slide rail extending along the front-rear direction of the motorcycle; The base (42) is equipped with a self-lubricating housing (8) and a guide rail slider (9) at its bottom. The self-lubricating housing (8) and the guide rail slider (9) are interference-fitted. The guide rail slider (9) and the self-lubricating housing (8) together are slidably mounted on the guide rail.

3. The adjustable seat of claim 2, wherein, The first driving component includes: The first drive motor is connected to the controller; The first worm (35) is connected to the output end of the first drive motor and is driven to rotate by the first drive motor; The first worm gear (33) meshes with the first worm (35); The lead screw (31) is coaxial with and rotates synchronously with the first worm gear (33), and the lead screw (31) is threadedly connected to the base (42).

4. The adjustable chair of claim 3, wherein, The length direction of the first drive motor is arranged along the width direction of the seat body (46), and along the front-rear direction of the seat body (46), the first drive assembly is arranged on the rear side of the base (42).

5. The adjustable seat of claim 1, wherein, The second linkage assembly includes at least two second links spaced apart along the width direction of the seat body (46), and the second links are connected to each other by a plurality of third links; The number of active arms and first links are both two. The two active arms are symmetrically arranged on both sides of the width direction of the second link assembly. One of the two active arms is rotatably connected to one of the second links, and the other of the two active arms is rotatably connected to the other second link. The two first links are symmetrically arranged on both sides of the width direction of the second link assembly. One of the two first links is rotatably connected to one of the second links, and the other of the two first links is rotatably connected to the other second link.

6. The adjustable seat of claim 1, wherein, The second link includes a first extension segment extending in a first direction and a second extension segment extending in a second direction. One end of the first extension segment is connected to the active arm assembly, and the other end of the first extension segment is connected to the first link assembly. The angle between the second extension segment and the first extension segment is an obtuse angle, and the second extension segment is inclined upward along the extension direction of the first extension segment.

7. The adjustable chair of any of claims 1-4, wherein, The bottom of the seat body (46) is provided with a cushion cushion rubber (45). And / or, the mounting holes of the seat body (46) are provided with shock-absorbing rubber (47).

8. A motorcycle characterized in that It includes a frame body and a seat mounted on the frame body, wherein the seat is an adjustable seat as described in any one of claims 1-7.

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