Angle adjusting mechanism and vehicle

Abstract

The angle adjusting mechanism comprises a mounting main body, a fluted disc, a tooth block and a locking mechanism, the tooth block comprises a first main body and a second main body which are in wedge-shaped connection, and the first main body and the second main body are both arranged in a sliding groove and can move along the sliding groove under driving of a connecting rod; when the rotating shaft is located at the first position and the second position, under the action of wedge-shaped connection, the first main body and the second main body are relatively separated and are tightly wedged in the sliding groove, so that the problem that a gap exists between the tooth block and the sliding groove when the angle adjusting mechanism is in a locking state is solved, and the problem that the angle adjusting mechanism is prone to shaking in the locking state is further weakened. And a rotating shaft of the fluted disc and a rotating shaft of the rotating shaft in the locking mechanism are arranged in a non-coaxial manner, namely, the fluted disc and the rotating shaft respectively rotate around different points, so that all parts in the angle adjusting mechanism are convenient to arrange, and the use flexibility is relatively high.

Description

Technical Field

[0001] This invention relates to the field of adjustment mechanism technology, and in particular to an angle adjustment mechanism and a vehicle. Background Technology

[0002] Vehicles typically have dedicated angle adjustment mechanisms to adjust the angles of components such as seat backs, armrests, and headrests to meet user comfort needs. The adjustment mechanisms for each component may differ slightly in structure.

[0003] The main structure of the backrest adjustment mechanism is a disc type, with the locking teeth being the outer circumferential teeth and the meshing disc being the inner circumferential teeth. The center of rotation for unlocking is concentric with the center of rotation of the disc. While this mechanism can be used for armrests and headrests, the structural arrangement is challenging when the unlocking components of the armrests and headrests need to rotate together with them, especially when space is limited. Currently, disc-type adjustment mechanisms are not used in headrests. Although there are many disc-type adjustment mechanisms in the center armrest of the rear seats, the presence of dampers in the armrests makes the arrangement even more difficult, and even when feasible, the cost is high.

[0004] The headrest adjustment mechanism primarily uses a rotating gear disc with external teeth. The meshing teeth rotate around their own center of rotation to engage and disengage with the gear plate. The center of rotation is off-center from the center of the gear disc, and the unlocking center is also off-center from the center of rotation of the gear disc. This type of mechanism is prone to problems such as large back-and-forth wobbling and gaps, resulting in a poor user experience.

[0005] How to continuously optimize the structure of the angle adjustment mechanism and solve the problem of large gaps and wobbling in the angle adjustment mechanism is a technical issue that technicians in this field have always been concerned about. Summary of the Invention

[0006] One object of the present invention is to provide an angle adjustment mechanism in which a groove on the mounting body constrains the toothed block in the locking mechanism, thereby reducing the problem of easy wobbling in the angle adjustment mechanism. Another object of the present invention is to provide a vehicle including the above-described angle adjustment mechanism.

[0007] The present invention provides an angle adjustment mechanism comprising:

[0008] Installation main body;

[0009] A toothed disc, rotatably connected to the mounting body, the toothed disc rotating relative to the mounting body around a first axis, and at least a portion of the outer periphery of the toothed disc having first meshing teeth;

[0010] The locking mechanism includes a rotating shaft, a cam, a connecting rod, and a gear block. The rotating shaft is rotatably connected to the mounting body. One end of the cam is circumferentially limited and connected to the rotating shaft, and the other end is provided with a first locking part. The gear block includes a second meshing tooth and a second locking part. The second meshing tooth meshes with the first meshing tooth. The rotating shaft is not coaxial with the first shaft.

[0011] The mounting body is also provided with a sliding groove. The toothed block includes a first body and a second body connected in a wedge shape. Both the first body and the second body can move along the sliding groove. When the rotating shaft is in the first position, the second meshing tooth and the first meshing tooth mesh together. The first locking part and the second locking part abut against each other to inhibit the movement of the toothed block. The first body and the second body are wedged between the two groove walls of the sliding groove. When the rotating shaft rotates to the second position in a predetermined direction, the first locking part separates from the toothed block. The rotating shaft drives the toothed block to move inside the sliding groove through the connecting rod, so that the first meshing tooth and the second meshing tooth separate.

[0012] In this embodiment, the toothed block includes a split first body and a second body, which can be wedge-connected. They can be directly or indirectly wedge-fitted. Both the first and second bodies are located inside a slide groove, and can move along the groove under the drive of a connecting rod. When the rotating shaft is in the first and second positions, the wedge connection causes the first and second bodies to separate and wedge tightly inside the slide groove. This reduces the gap between the toothed block and the slide groove in the locked state, thus mitigating the problem of easy wobbling in the locked state. Furthermore, the rotating shaft of the toothed disc and the rotating shaft in the locking mechanism are not coaxial; that is, the toothed disc and the rotating shaft rotate around different points. This facilitates the arrangement of components in the angle adjustment mechanism and provides high flexibility.

[0013] In one example, the first body and the second body are connected with a gap along the sliding direction, and the first body and the second body have a wedge-shaped surface that slides into contact with each other, the wedge-shaped surface being arranged at an angle to the first direction; when the rotating shaft is in the first position and the second position, the two side walls of the first body and the second body that are relatively far apart abut against the two groove walls of the slide groove respectively; the first body includes a second locking part, the second body includes a second meshing tooth, and the first direction is parallel to the extension direction of the slide groove.

[0014] In one example, the linkage is connected between the cam and the first body, such that the cam drives the first body and the second body to slide along the groove via the linkage.

[0015] In one example, the cam has a boss, and the connecting rod has an elongated hole. The boss passes through the elongated hole. When the cam rotates, the cam drives the connecting rod to move through the boss sliding in the elongated hole.

[0016] In one example, one end of the connecting rod is circumferentially limited to the rotating shaft, and the other end of the connecting rod is provided with an elongated hole. The first body is provided with a protrusion, which is inserted into the interior of the elongated hole. When the cam rotates, the first body slides along the groove under the cooperation of the hole wall of the elongated hole and the protrusion.

[0017] In one example, one of the first body and the second body is provided with a recess and the other is provided with a convex portion, the recess and the convex portion are interlocked, and the recess and the convex portion have a gap in the sliding direction.

[0018] In one example, a return spring is also included, one end of which is circumferentially connected to the rotating shaft and the other end of which is circumferentially connected to the mounting body.

[0019] In one example, the outer periphery of the toothed disc has a fan-shaped structure or a circular structure;

[0020] Alternatively / and, the entire outer periphery of the toothed disc is either the first meshing tooth or spaced tooth segments;

[0021] Alternatively / and, the mounting body is also provided with a limit structure to limit the rotation angle of the cam;

[0022] Alternatively / and, the mounting body includes a base and a sheath, the base and the sheath forming an inner cavity, the gear plate, the cam, the connecting rod, and the gear block are located in the inner cavity, the rotating shaft is rotatably supported by the base and the sheath, and at least one end of the rotating shaft extends to the outside of the inner cavity.

[0023] In addition, this application embodiment also provides a vehicle including the angle adjustment mechanism described in any of the above claims, the angle adjustment mechanism being able to adjust the angle of at least one of the vehicle's seat back, headrest, or armrest.

[0024] The vehicle provided in this application includes the aforementioned angle adjustment mechanism, and therefore the vehicle also has the aforementioned technical effects of the angle adjustment mechanism. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the angle adjustment mechanism in one embodiment of the present invention;

[0026] Figure 2 for Figure 1 A schematic diagram of the structure shown without the sheath;

[0027] Figure 3 for Figure 1 A schematic diagram of the base structure shown;

[0028] Figure 4 for Figure 1 A schematic diagram of the return spring in the structure shown;

[0029] Figure 5 for Figure 1 A schematic diagram of the rotating shaft in the structure shown;

[0030] Figure 6 for Figure 1 A schematic diagram of the cam structure shown;

[0031] Figure 7 for Figure 1 A schematic diagram of the connecting rod in the structure shown;

[0032] Figure 8 for Figure 1 A schematic diagram of the second main body in the structure shown;

[0033] Figure 9 for Figure 1 A schematic diagram of the first main body in the structure shown;

[0034] Figure 10 for Figure 1 A schematic diagram of the toothed disk in the structure shown;

[0035] Figure 11 for Figure 1 A schematic diagram of the sheath structure shown;

[0036] Figure 12 for Figure 1 A three-dimensional schematic diagram of the toothed disk in the structure shown;

[0037] Figure 13 for Figure 1 The diagram shows the structure in the unlocked state;

[0038] Figure 14 for Figure 1 The diagram shown illustrates the structure during the unlocking process.

[0039] Figure 15 for Figure 1 The diagram shows the structure in a locked state.

[0040] Figure 16 for Figure 1 The diagram shows the flow from the unlocked state to the locked state of the structure shown.

[0041] Figure 17 for Figure 1 A schematic diagram of the process from the unlocked state to the locked state in another embodiment of the structure shown;

[0042] Figure 18 for Figure 1 The diagram shown is a structural schematic excluding the sheath and connecting rod.

[0043] Figure 19 This is a schematic diagram of the angle adjustment mechanism in another embodiment of this application;

[0044] Figure 20 This is a schematic diagram of the adjustment mechanism in another embodiment of this application;

[0045] Figure 21 This is a schematic diagram of the adjustment mechanism in another embodiment of this application.

[0046] The annotations in the attached figures are explained as follows:

[0047] Mounting body 100A; Sheath 100; Second circular hole 110; Outer contour of sheath 120; First hole 130; Gear disc 200; First meshing tooth 210; Second hole 220; First convex ring 230; Second convex ring 240; Smooth arc surface 250; Gear block 300A; First body 300; Second locking part 310; Protrusion 320; First wedge-shaped surface 330; Protrusion 340; Straight edge of first body 350; Second body 400; Second wedge-shaped surface 410; Second meshing tooth 420; Recess 430; Groove wall 431; Straight edge of second body 440; Linkage 500; elongated hole 510; insertion hole 520; elongated hole portion 530; cam 600; connecting hole 610; boss 620; first locking portion 630; limiting surface 640; rotating shaft 700; first round shaft section 710; first shaft section 720; third round shaft section 730; second round shaft section 740; return spring 800; first end 810; second end 820; base 900; first round hole 910; protrusion 920; limiting groove 930; sliding groove 940; first straight edge 941; second straight edge 942; through hole 950; outer contour of base 960. Detailed Implementation

[0048] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0049] Please refer to Figure 1 , Figure 2 , Figure 19 and Figure 20This application provides an angle adjustment mechanism, including a mounting body 100A, a gear disc 200, and a locking mechanism. The mounting body 100A mainly provides a mounting base for the gear disc 200 and the locking mechanism. The mounting body 100A can be a single integrated structure, or it can include multiple components assembled to form the mounting body 100A. In this embodiment, the mounting body 100A includes a base 900 and a sheath 100. The sheath 100 has a concave cavity structure with an opening on one side. The base 900 is located at the opening of the sheath 100. The sheath 100 and the base 900 form an inner cavity. The gear disc 200 and the locking mechanism can be entirely or partially located within the inner cavity. The rotating shaft 700 of the locking mechanism can be partially located within the inner cavity and partially extend to the outside of the inner cavity to facilitate connection with an external operating mechanism. Please refer to... Figure 3 , Figure 11 It is understood that the outer contour 120 of the sheath 100 is the same as the outer contour 960 of the base 900, and the two are fixedly connected together.

[0050] In this embodiment, the gear disk 200 is rotatably connected to the mounting body 100A. The gear disk 200 rotates relative to the mounting body 100A around a first axis. In one example, a first protruding ring 230 and a second protruding ring 240 are respectively provided on both sides of the gear disk 200. The second protruding ring 240 is engaged with the first hole 130 on the sheath 100 via a rotary joint, and the first protruding ring 230 is engaged with the second hole 220 on the base 900 via a rotary joint. The protruding post 230 on the gear disk 200 can be connected to an external connector. At least a portion of the outer periphery of the gear disk 200 has first meshing teeth 210, that is, the entire outer periphery of the gear disk 200 can be provided with first meshing teeth 210 (e.g., ...). Figure 19 (As shown), or a portion of the outer periphery may be provided with the first meshing tooth 210, for example... Figure 12 As shown in the figure, the toothed disk 200 has two spaced-apart meshing tooth segments, each meshing tooth segment having a plurality of first meshing teeth 210. The toothed disk 200 can rotate about the rotation center B. Please refer to [link to relevant documentation]. Figure 1 .

[0051] In this embodiment, the locking mechanism includes a rotating shaft 700, a cam 600, a connecting rod 500, and a gear block 300A. The rotating shaft 700 is rotatably connected to the mounting body 100A. The rotating shaft 700 can be connected to an external operating mechanism, and under the action of the external operating mechanism, the rotating shaft 700 can rotate relative to the mounting body 100A. Please refer to... Figure 3 , Figure 11Understandably, the base 900 has a first circular hole 910, and the sheath 100 has a second circular hole 110. The first circular hole 910 and the second circular hole 110 are coaxially arranged. The first circular shaft section 710 of the rotating shaft 700 is rotatably mounted in the first circular hole 910, and the second circular shaft section 740 of the rotating shaft 700 is rotatably mounted inside the second circular hole 110. One end of the cam 600 is circumferentially limited and connected to the rotating shaft 700, meaning that the cam 600 cannot rotate relative to the rotating shaft 700. The two can be fixedly connected or connected through a keyway, allowing the cam 600 to rotate with the rotating shaft 700. Please refer to... Figure 6 It is understood that the other end of the cam 600 is provided with a first locking part 630, which can be in the shape of an inclined surface.

[0052] Please combine Figure 8 Understandably, in this embodiment of the application, the tooth block 300A includes a second meshing tooth 420 and a second locking part, wherein the second meshing tooth 420 meshes with the first meshing tooth 210. The axial direction of the rotating shaft 700 is not coaxial with the first shaft; that is, the rotating shaft 700 and the toothed disk 200 are staggered in a plane perpendicular to the first shaft.

[0053] Please combine Figure 2 and Figure 3 In this embodiment, the mounting body 100A is further provided with a sliding groove 940, and the toothed block 300A slides inside the sliding groove 940. In one example, the toothed block 300A includes a first body 300 and a second body 400. When the rotating shaft 700 is in the first position, the second meshing tooth 420 and the first meshing tooth 210 mesh, and the first locking part 630 abuts against the second locking part to inhibit the movement of the toothed block 300A. The first body and the second body are wedged between the two groove walls of the sliding groove. When the rotating shaft 700 rotates to the second position in a predetermined direction, the first locking part 630 separates from the toothed block 300A, and the rotating shaft 700 drives the toothed block 300A to move inside the sliding groove 940 through the connecting rod 500, so that the first meshing tooth 210 and the second meshing tooth 420 separate. In this application, the sliding direction of the toothed block 300A is defined as the Y direction, and the X direction is perpendicular to the Y and Z directions. Please refer to [reference needed]. Figure 2 .

[0054] Please refer to Figure 2Under normal conditions, the first locking part 630 and the second locking part abut against each other to inhibit the movement of the toothed block 300A, thus locking the position of the toothed block 300A. Since the toothed block 300A and the toothed disc 200 are engaged by teeth, the position of the toothed disc 200 is also locked, achieving locking of the toothed disc 200. During unlocking, a rotational torque is applied to the rotating shaft 700, causing it to rotate around the rotation center A (clockwise in the diagram), driving the cam 600 to rotate. The first locking part 630 and the second locking part separate, unlocking the toothed block 300A. Simultaneously, through the connecting rod 500, the rotational power of the rotating shaft 700 can drive the toothed block 300A to move along the slide groove 940, separating the first meshing tooth 210 and the second meshing tooth 420, thus unlocking the toothed disc 200, allowing it to rotate circumferentially.

[0055] In this embodiment, the tooth block 300A includes a split first body 300 and a second body 400. The first body 300 and the second body 400 can be wedge-connected, and can be directly wedge-fitted or indirectly wedge-fitted. Both the first body 300 and the second body 400 are disposed inside the slide groove. Driven by the connecting rod 500, they can move along the slide groove 940. When the rotating shaft is in the first position and the second position, under the action of the wedge connection, the first body 300 and the second body 400 are relatively separated and wedge-tightly inside the slide groove 940. This reduces the problem of gap between the tooth block 300A and the slide groove 940 when the angle adjustment mechanism is locked, thereby weakening the problem of easy shaking of the angle adjustment mechanism in the locked state. Furthermore, the rotating shaft of the tooth disk 200 and the rotating shaft 700 in the locking mechanism are not coaxially arranged, that is, the tooth disk 200 and the rotating shaft 700 rotate around different points respectively. This facilitates the arrangement of the components in the angle adjustment mechanism and provides high flexibility in use.

[0056] Please combine Figure 2 , Figure 8 and Figure 9 In this embodiment, the first body 300 and the second body 400 are connected with a gap limit along the sliding direction. This gap limit connection means that the first body 300 and the second body 400 can move relative to each other within a predetermined travel range in the sliding direction. When one moves beyond the predetermined travel range relative to the other, their positions are restricted, and they slide together along the sliding direction. The first body 300 and the second body 400 have wedge-shaped surfaces that slide in cooperation, with the wedge-shaped surfaces arranged at an angle to the first direction. The first body 300 includes a first wedge-shaped surface, and the second body 400 includes a second wedge-shaped surface. The first and second wedge-shaped surfaces cooperate with each other and can slide relative to each other. The first body 300 includes a second locking portion, and the second body 400 includes a second meshing tooth 420. The first direction is parallel to the extending direction of the slide groove 940.

[0057] In this embodiment, the first body 300 and the second body 400 are engaged by wedge-shaped surfaces, resulting in a relatively simple structure. They can be tightly wedged between the two walls of the slide groove 940 at the first and second positions, providing high stability.

[0058] Please refer to Figure 2 , Figure 5 and Figure 6 Understanding that the connecting hole 610 on the cam 600 is fixedly connected to the third circular shaft section 730 of the rotating shaft 700, allowing it to rotate circumferentially with the rotating shaft 700, and the connecting rod 500 connects the cam 600 and the first body 300, so that the cam 600 drives the first body 300 and the second body 400 to slide along the slide groove 940 via the connecting rod 500. This connection method offers good motion flexibility. Specifically, one end of the connecting rod 500 is connected to the cam 600, where the cam 600 and the connecting rod 500 can be connected by a hole and shaft. For example, the cam 600 is provided with a boss 620, and the connecting rod 500 is provided with an elongated hole 510. When the cam 600 rotates, the cam 600 drives the connecting rod 500 to move through the boss 620 sliding in the elongated hole 510. The other end of the connecting rod 500 is connected to the first body 300. The connecting rod 500 and the first body 300 can also be hinged via a hole and shaft. For example, the connecting rod 500 is provided with an insertion hole 520, and the first body 300 is provided with a protrusion 320, which is inserted into the insertion hole 520. The first body 300 and the second body 400 are interlocked to achieve a clearance sliding fit. That is, one of the first body 300 and the second body 400 is provided with a recess, and the other is provided with a protrusion. The recess and the protrusion are interlocked, and there is a gap between the recess and the protrusion in the sliding direction. The attached figure shows that the first body 300 is provided with a protrusion 340, and the second body 400 is provided with a recess 430. Of course, it is also possible for the first body 300 to be provided with a recess and the second body 400 to be provided with a protrusion.

[0059] The mounting body 100A can also be equipped with a limiting structure to limit the rotation angle of the cam 600. For example, the limiting structure on the mounting body 100A can be a protrusion 920, which can abut against the limiting surface 640 of the cam 600 to limit the rotation angle of the cam 600. This allows the rotation angle of the cam 600 to be determined quickly.

[0060] Furthermore, a return spring 800 can be provided between the cam 600 and the mounting body 100A. One end of the return spring 800 is circumferentially limited to the rotating shaft 700, and the other end is circumferentially limited to the mounting body 100A. The return spring 800 and the rotating shaft 700 can be fitted with a non-circular cross-section to limit circumferential rotation. Please refer to [reference needed]. Figure 4 and Figure 5In one example, the first end 810 of the return spring 800 is rectangular, and the rotating shaft 700 also includes a first shaft segment 720 with a rectangular cross-section on its outer peripheral wall. The first end 810 is fitted onto the first shaft segment 720, and the two can rotate synchronously. A limiting groove 930 is provided on the base 900. The second end 820 of the return spring 800 is hook-shaped and can hook into the limiting groove 930 to achieve positioning of the return spring 800 and the base 900. Under the restoring force of the return spring 800, the rotating shaft 700 can quickly return to its initial position, and the first meshing tooth 210 and the second meshing tooth 420 can re-mesh, thereby locking the gear disc 200. The return spring 800 can also provide the power for the first locking part 630 to stably abut against the second locking part during locking.

[0061] Please refer to Figure 13 and Figure 14 During unlocking, a rotational torque is applied to the rotating shaft 700, causing it to rotate around its rotation center A (clockwise as shown in the diagram). This rotation drives the cam 600 to rotate, which in turn drives the connecting rod 500 via a boss. The connecting rod 500, through a hole-shaft engagement, causes the first body 300 to slide along the slide groove 940. When the protrusion of the first body 300 contacts the upper groove wall 431 of the concave portion of the second body 400, the second body 400 will move in the same direction as the first body 300 along the slide groove 940 until the second meshing tooth 420 of the second body 400 disengages from the first meshing tooth 210 of the gear disc 200. The rotating shaft 700 continues to rotate until the limiting surface 640 of the cam 600 contacts the limiting structure 920. During the rotation of the rotating shaft 700, the return spring 800 is also pre-tightened.

[0062] Please combine Figure 15 , Figure 16 and Figure 18 After releasing the torque applied to the rotating shaft 700, under the restoring force of the return spring 800, the cam 600 rotates in the opposite direction to the unlocking direction (counterclockwise). The first locking part 630 of the cam 600 contacts the second locking part of the first body 300, pushing the first body 300 to move in the opposite direction to the unlocking direction (-Y direction). The first wedge surface of the first body 300 contacts the second wedge surface of the second body 400, pushing the second body 400 to move in the same direction as the first body 300 until the second meshing tooth 420 of the second body 400 engages with the first meshing tooth 210 of the gear disk 200, thus locking the gear disk 200. After unlocking, the gear disk 200 can rotate around the rotation center. When stepped angle adjustment is required, the gear disk 200 is rotated to the desired position, the torque applied to the rotating shaft 700 is released, and it locks under the torque of the return spring 800, completing the stepped angle adjustment (see diagram). Figure 6 .

[0063] Please refer to Figure 17 When idling is required to adjust the angle, rotate the ratchet to the appropriate position to release the torque applied to the rotating shaft 700. Under the torque of the return spring 800, the cam 600 rotates in the opposite direction to the unlocking direction (counterclockwise). The first locking part 630 of the cam 600 contacts the second locking part of the first body 300, pushing the first body 300 to move in the opposite direction to the unlocking direction (-Y direction). The second wedge surface of the second body 400 contacts the first wedge surface 410 of the second body 400, pushing the second body 400 to move until the second meshing tooth 420 contacts the smooth arc surface 250 of the gear disk 200. Then, apply a certain torque to the gear disk 200, and the gear disk 200 can continue to rotate until it reaches the required position, completing the idling angle adjustment. Please refer to [reference needed]. Figure 7 .

[0064] When the angle adjustment mechanism of this application is locked, the first locking part 630 (sloping surface) of the cam 600 presses against the second locking part (locking slope) of the first body 300, and the first wedge surface 330 of the first body 300 presses against the second wedge surface 410 of the second body 400. The pressure between the wedge surfaces will cause the second body 400 to move in the +X direction until the straight edge 440 of the second body 400 contacts the first straight edge 941 of the slide groove 940; while the first body 300 moves in the -X direction until the straight edge 350 of the first body 300 contacts the second straight edge 942 of the slide groove 940. As a result, the gap required for the movement between the first body 300 and the second body 400 and the slide groove 940 is eliminated, greatly reducing the shaking phenomenon of the mechanism.

[0065] Please refer to Figure 19 In another embodiment, one end of the connecting rod 500 is circumferentially limited to the rotating shaft 700, and the other end of the connecting rod 500 is provided with an elongated hole 530. The first body 300 is provided with a protrusion 320, which is inserted into the elongated hole 530. When the cam 600 rotates, the first body 300 slides along the slide groove 940 under the cooperation of the hole wall of the elongated hole 530 and the protrusion 320.

[0066] When unlocking, the connecting rod 500 rotates counterclockwise with the rotating shaft 700, driving the first main body 300 to move and complete the unlocking movement.

[0067] Please refer to Figure 1 , Figure 2 , Figure 13 , Figure 18 , Figure 20 and Figure 21 In the above embodiments, the outer periphery of the gear disk 200 may have spaced tooth segments, thus enabling multi-angle adjustment of the angle adjustment mechanism. Alternatively, the gear disk 200 may have first meshing teeth 210 provided throughout its entire outer periphery; please refer to [reference needed]. Figure 19 .

[0068] As described above, the mounting body 100A includes a base 900 and a sheath 100. The base 900 and the sheath 100 form an inner cavity. The gear disc 200, cam 600, connecting rod 500, and gear block 300A are located in the inner cavity. The rotating shaft 700 is rotatably supported by the base 900 and the sheath 100, and at least one end of the rotating shaft 700 extends to the outside of the inner cavity. This facilitates the adjustment of the various components in the mechanism and provides protection for the components. In the above embodiments, the outer periphery of the gear disc 200 can be a fan-shaped structure or a circular structure. The shape of the gear disc 200 can be reasonably set according to the specific application environment to improve the flexibility of the mechanism application.

[0069] Please see Figure 21 The gear disc 200 can be a ring-shaped fan structure. The connecting rod 1000 is fixedly connected to the inner peripheral wall of the ring-shaped fan. The inner peripheral wall of the second hole 220 can be fixedly connected to the connecting rod 1000 or connected by a key. The connecting rod 1000 is engaged with the mounting body 100A (through hole 950 of the base 900 and first hole 130 of the sheath 100) to ensure the normal rotation of the connecting rod 1000.

[0070] For other aspects of the vehicle's structure, please refer to existing technologies; this invention will not provide further details.

[0071] It should be noted that, in the embodiments of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," etc., may explicitly or implicitly include one or more of that feature.

[0072] The foregoing has provided a detailed description of the angle-adjusting mechanism and vehicle provided by the present invention. Specific examples have been used to illustrate the principles and implementation methods of the invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A swivel mechanism, characterized in that The utility model relates to a kind of toothed wheel locking mechanism, including: Mounting body (100A); Toothed disc (200), the toothed disc (200) is rotationally connected to the mounting body (100A), the toothed disc (200) rotates around first shaft relative to the mounting body (100A), and the outer peripheral portion of the toothed disc (200) has first meshing tooth (210) at least partial area; Locking mechanism, including rotating shaft (700), cam (600), connecting rod (500) and tooth block (300A), the rotating shaft (700) is rotationally connected to the mounting body (100A), one end of the cam (600) is circumferentially limited connection with the rotating shaft (700), and the other end is provided with first locking portion (630);The tooth block (300A) includes second meshing tooth (420) and second locking portion (310), the second meshing tooth (420) is engaged with the first meshing tooth (210);The rotating shaft (700) is not coaxially arranged with the first shaft; The mounting body (100A) is further provided with sliding slot (940), and the tooth block (300A) includes wedge-shaped connection first body (300) and second body (400), the first body (300) and the second body (400) can move along the sliding slot (940);When the rotating shaft (700) is at first position, the second meshing tooth (420) and the first meshing tooth (210) are engaged, the first locking portion (630) is abutted with the second locking portion (310) to inhibit the movement of the tooth block (300A), and the first body (300) and second body (400) are wedged between the two side walls of the sliding slot (940);When the rotating shaft (700) rotates to second position along predetermined direction, the first locking portion (630) is separated from the tooth block (300A), and the rotating shaft (700) drives the first body (300) and second body (400) to move in the sliding slot (940) by the connecting rod (500), so that the first meshing tooth (210) and the second meshing tooth (420) are separated.

2. The angle adjustment mechanism of claim 1, wherein The first body (300) and the second body (400) are gap limited connection along sliding direction, and the first body (300) and the second body (400) wedge-shaped surface sliding fit, the wedge-shaped surface is arranged at an angle with the first direction;When the rotating shaft is located at the first position and the second position, the first body (300) and second body (400) are relatively away from the two side walls respectively and abut with the two groove walls of the sliding slot (940);The first body (300) includes the second locking portion (310), and the second body (400) includes the second meshing tooth (420), and the first direction is parallel to the extension direction of the sliding slot (940).

3. The angle adjustment mechanism of claim 2, wherein The connecting rod (500) is connected between the cam (600) and the first body (300), so that the cam (600) drives the first body (300) and the second body (400) to slide along the sliding groove (940) through the connecting rod (500).

4. The angle adjustment mechanism of claim 2, wherein The cam (600) is provided with a boss (620), and the connecting rod (500) is provided with an elongated hole (510), the boss (620) is arranged in the elongated hole (510), and when the cam (600) rotates, the cam (600) drives the connecting rod (500) to move through the boss (620) sliding in the elongated hole (510).

5. The angle adjustment mechanism of claim 1, wherein One end of the connecting rod (500) is circumferentially limitedly connected with the rotating shaft (700), the other end of the connecting rod (500) is provided with an elongated hole portion (530), the first body (300) is provided with a protrusion (320), the protrusion (320) is inserted into the inside of the elongated hole portion (530), and when the cam (600) rotates, the first body (300) slides along the sliding groove (940) under the cooperation of the hole wall of the elongated hole portion (530) and the protrusion (320).

6. An angle adjustment mechanism according to any one of claims 1 to 5, wherein One of the first body (300) and the second body (400) is provided with a recess, and the other is provided with a protrusion, the recess and the protrusion are recessed and protrudingly embeddedly connected, and the recess and the protrusion have a gap in the sliding direction.

7. An angle adjustment mechanism according to any one of claims 1 to 5, wherein Further comprising a reset spring (800), one end of the reset spring (800) is circumferentially limitedly connected with the rotating shaft (700), and the other end is circumferentially limitedly connected with the mounting body (100A).

8. The angle adjustment mechanism according to any one of claims 1 to 5, wherein The outer peripheral portion of the tooth disc (200) is a fan-shaped structure or a circular structure. Or / and, the outer periphery of the tooth disc (200) is all the first engagement teeth or is a tooth segment distributed at intervals. Or / and, the mounting body (100A) is further provided with a limiting structure for limiting the rotation angle of the cam (600).

9. An angle adjustment mechanism according to any one of claims 1 to 5, wherein The mounting body (100A) comprises a base (900) and a sheath (100), the base (900) and the sheath (100) surround an inner cavity, the tooth disc (200), the cam (600), the connecting rod (500), and the tooth block (300A) are located in the inner cavity, the rotating shaft (700) is simultaneously rotatably supported on the base (900) and the sheath (100), and at least one end of the rotating shaft (700) extends to the outside of the inner cavity.

10. A vehicle characterized by comprising: The angle adjustment mechanism according to any one of claims 1 to 9 is capable of adjusting the angle of at least one of the seat back, the headrest, or the armrest of the vehicle.

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