Rotary mechanism and car seat

Abstract

The application discloses a rotating mechanism and an automobile seat, and the rotating mechanism comprises an upper cover plate, a lower cover plate, a rotating disc, a rotating gasket, a first limiting disc, a second limiting disc, a third limiting disc, a locking disc, a fourth limiting disc, an upper fixed plate, a lower fixed plate, a locking mechanism, a detection mechanism and fixing bolts; the rotating mechanism can effectively solve the problems that the traditional ball structure is too large in local pressure, causes the ball to be deformed by indentation, increases the gap, is not smooth in rotation, and increases noise; the special design of the rotating mechanism can buffer the impact force from all directions and weaken the damage to the seat and other components connected with the rotating mechanism; the special design of the rotating mechanism causes the total thickness to be only about 30 mm, and the thickness can fully adapt to the environment where the traditional rotating mechanism cannot be installed, such as a light truck seat; the simple design of the upper cover plate and the lower cover plate of the rotating mechanism can not be distinguished between upper and lower in actual use, and the ability to cope with special environments is further increased.

Description

Technical Field

[0001] This invention relates to the field of seating, and more specifically to a rotating mechanism. Background Technology

[0002] With the increasing popularity of MPVs, commercial vehicles, and autonomous driving models, the demand for flexible interior space has significantly increased. Rotating seats, as the core mechanism enabling 360° seat rotation and various seating arrangements, have become a key area for optimization in automotive interior design in recent years.

[0003] Traditional swivel seats mostly use ball bearing turntables for their rotating mechanism. This structure has rigid contact and strong local pressure, which can easily cause indentations, leading to increased gaps and various noises over time. The rotation also becomes increasingly difficult. Another fatal problem with traditional swivel mechanisms is that the overall thickness exceeds 50mm, which seriously affects the seat's ground clearance and makes it unsuitable for low-suspension seats such as those used in light trucks. Summary of the Invention

[0004] In view of the above problems, the present invention is proposed to provide a rotating mechanism and a car seat that overcomes or at least partially solves the above problems.

[0005] According to one aspect of the present invention, a rotating mechanism is provided, characterized in that the rotating mechanism includes an upper cover plate, a lower cover plate, a rotating disk, a rotating pad, a first limiting disk, a second limiting disk, a third limiting disk, a locking disk, a fourth limiting disk, an upper fixing plate, a lower fixing plate, a locking mechanism, a detection mechanism, and fixing bolts.

[0006] The top of the upper cover plate is provided with multiple upper fixing holes, and the bottom of the lower cover plate is provided with multiple lower fixing holes;

[0007] The third limiting disk has a special Z-shaped structure, and the top of the third limiting disk presses against a portion of the rotating disk.

[0008] The top of the locking disc is provided with multiple limiting holes, and the side of the locking disc is provided with multiple arc-shaped sliders;

[0009] The fourth limiting plate is equipped with multiple elastic sliders.

[0010] Preferably, the rotating pad is C-shaped, made of an elastic and wear-resistant material, inserted into the surface of the rotating disk, and slides between the rotating disk and the third limiting disk.

[0011] Preferably, the upper cover plate is fixedly connected to the rotating disk by the fixing bolt, the upper cover plate is fixedly connected to the first limiting disk by the fixing bolt, the upper cover plate is fixedly connected to the second limiting disk, and the upper cover plate is fixedly connected to the upper fixing plate by the fixing bolt.

[0012] Preferably, the lower cover plate is fixedly connected to the third limiting plate by the fixing bolt, the lower cover plate is fixedly connected to the locking plate, the lower cover plate is fixedly connected to the fourth limiting plate, and the lower cover plate is fixedly connected to the lower fixing plate by the fixing bolt.

[0013] Preferably, the rotating disk moves relative to the third limiting disk, and the first limiting disk rotates relative to the locking disk.

[0014] Preferably, the second limiting disk and the fourth limiting disk are C-shaped, and the second limiting disk and the fourth limiting disk restrict each other from making axial movements, and the second limiting disk and the fourth limiting disk make relative rotational movements.

[0015] Preferably, the locking mechanism can be a mechanical locking mechanism, which includes a locking seat, a latch, a rotating shaft, a first return spring, a second return spring, a control rod, a limit pin, and a locking pin.

[0016] The locking seat is fixedly connected to the upper cover plate by the fixing bolt. The rotating shaft passes through the latch and the first return spring and is adaptively connected to the locking seat. The control rod passes through the second return spring and the limit pin and is adaptively connected to the upper fixing plate. One end of the locking pin is located on the control rod and the other end is located on the latch. When locked, the latch is located in the limit hole provided by the locking plate.

[0017] Preferably, the locking mechanism can be a pneumatic locking mechanism, which includes a locking seat, a latch, a rotating shaft, a first return spring, and an air valve;

[0018] The air valve includes a valve body, a valve stem, a third return spring, a sealing ring, and an air nozzle;

[0019] The locking seat is fixedly connected to the upper cover plate by the fixing bolt, and the rotating shaft passes through the latch and the first return spring and is adaptively connected to the locking seat;

[0020] When locked, the latch is located within the limiting hole provided on the locking plate;

[0021] The valve body has a hollow structure in the middle and through holes on both sides. The valve body is fixedly connected to the upper fixing plate by the fixing bolts. One end of the valve body is fixedly connected to the air nozzle through the through hole.

[0022] One end of the valve stem is located inside the valve body, and the other end of the valve stem passes through the through hole of the valve body and is located on the latch;

[0023] The third return spring and the sealing ring are mounted on the valve stem.

[0024] Preferably, the detection mechanism is fixedly connected to the lower cover plate by the fixing bolt, and the detection mechanism is located directly below the limiting hole provided on the locking disc.

[0025] According to another aspect of the present invention, a car seat is designed, the car seat including the above-described rotating mechanism, and other components of the car seat are fixedly connected to the rotating mechanism through the upper fixing hole and the lower fixing hole.

[0026] The beneficial effects of this invention are as follows: The rotating mechanism effectively solves the problems of indentation and deformation of the balls, increased gaps, uneven rotation, and increased noise caused by excessive local pressure in traditional ball bearing structures. Simultaneously, the special design of this rotating mechanism effectively buffers impact forces from all directions, reducing damage to components such as seats connected to the rotating mechanism. The special design results in a total thickness of only about 30mm, which is sufficient to adapt to environments where traditional rotating mechanisms cannot be installed, such as light truck seats. The simple design of the upper and lower cover plates of this rotating mechanism allows for simultaneous use without distinction between upper and lower sections, further increasing its ability to cope with special environments, such as upper, lower, or simultaneous connection of the slide rail. The rotating mechanism is equipped with two locking mechanisms, which can basically meet different user needs. The detection mechanism design can prevent injury caused by sudden rotation during use if the user fails to lock the mechanism properly.

[0027] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0028] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0029] Figure 1 A perspective view of a rotating mechanism according to an embodiment of the present invention is shown;

[0030] Figure 2 A perspective view of a rotating mechanism without a top cover according to an embodiment of the present invention is shown;

[0031] Figure 3 An exploded view of a rotating mechanism according to an embodiment of the present invention is shown;

[0032] Figure 4 A top connection diagram of an upper cover plate according to an embodiment of the present invention is shown;

[0033] Figure 5 A bottom connection diagram of an upper cover plate according to an embodiment of the present invention is shown;

[0034] Figure 6 A diagram showing a lower cover plate connection according to an embodiment of the present invention is provided;

[0035] Figure 7 A cross-sectional view of a rotating mechanism according to an embodiment of the present invention is shown;

[0036] Figure 8 A connection diagram of a mechanical locking mechanism according to an embodiment of the present invention is shown;

[0037] Figure 9 A perspective view of a gas valve according to an embodiment of the present invention is shown;

[0038] Figure 10 A cross-sectional view of a pneumatic valve according to an embodiment of the present invention is shown;

[0039] Figure 11 A diagram showing a seating arrangement according to an embodiment of the present invention is provided;

[0040] Figure label:

[0041] 1. Rotating mechanism

[0042] 2. Top cover plate

[0043] 2-1. Upper fixing hole

[0044] 3. Lower cover plate

[0045] 3-1, Lower fixing hole

[0046] 4. Rotating disc

[0047] 5. Rotating shim

[0048] 6. First limit plate

[0049] 7. Second limit plate

[0050] 8. Third limit plate

[0051] 9. Locking disc

[0052] 9-1, Limiting Hole

[0053] 9-2, Arc Slider

[0054] 10. Fourth limit plate

[0055] 10-1, Elastic slider

[0056] 11. Upper fixing plate

[0057] 12. Lower fixing plate

[0058] 13. Locking mechanism

[0059] 13-1 Locking seat

[0060] 13-2, Lock

[0061] 13-3, Rotation axis

[0062] 13-4. First return spring

[0063] 14. Mechanical locking mechanism

[0064] 14-1, Second return spring

[0065] 14-2, Control lever

[0066] 14-3, Limit pin

[0067] 14-4. Locking pin

[0068] 15. Pneumatic locking mechanism

[0069] 15-1. Air valve

[0070] 15-2, Valve Body

[0071] 15-3, Valve Stem

[0072] 15-4. Third return spring

[0073] 15-5, Sealing ring

[0074] 15-6. Air valve

[0075] 16. Testing institutions

[0076] 17. Fixing bolts

[0077] 18. Car seats Detailed Implementation

[0078] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0079] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to that other component. Furthermore, a connection can be for both fixing and circuit connection purposes.

[0080] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0081] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0082] Example 1:

[0083] According to one aspect of the present invention, a rotating mechanism 1 is designed. Figure 1 A perspective view of a rotating mechanism according to an embodiment of the present invention is shown. Figure 2 A perspective view of a rotating mechanism without a top cover according to an embodiment of the present invention is shown. Figure 3 An exploded view of a rotating mechanism according to an embodiment of the present invention is shown, as follows: Figure 1 , Figure 2 and Figure 3 As shown, the rotating mechanism 1 includes an upper cover plate 2, a lower cover plate 3, a rotating disk 4, a rotating pad 5, a first limiting disk 6, a second limiting disk 7, a third limiting disk 8, a locking disk 9, a fourth limiting disk 10, an upper fixing plate 11, a lower fixing plate 12, a locking mechanism 13, a detection mechanism 16, and a fixing bolt 17.

[0084] Specifically, the top of the upper cover plate 2 is provided with multiple upper fixing holes 2-1, and the bottom of the lower cover plate 3 is provided with multiple lower fixing holes 3-1. The design of the upper fixing holes 2-1 and the lower fixing holes 3-1 can ensure that the rotating mechanism 1 can be applied to most environments and connected to any component.

[0085] Specifically, the third limiting disk 8 has a special Z-shaped structure. The top of the third limiting disk 8 presses against a part of the rotating disk 4. This design not only restricts the two from separating, but also increases the compactness of the rotating mechanism 1 and reduces the overall thickness. It can save costs without adding a new structure.

[0086] Specifically, the top of the locking disc 9 is provided with multiple limiting holes 9-1, the specific number of which can be set according to actual needs. The side of the locking disc 9 is provided with multiple arc-shaped sliders 9-2, which can buffer the direct collision between the locking disc 9 and the first limiting disc 6 when the rotating mechanism 1 is subjected to horizontal impact force.

[0087] Specifically, the fourth limiting disk 10 is provided with a plurality of wear-resistant elastic sliders 10-1. The design of the elastic sliders 10-1 not only has a lubricating effect, but also reduces the frictional loss between the fourth limiting disk 10 and the second limiting disk 7.

[0088] In some embodiments of the present invention, such as Figure 3 As shown, the rotating pad 5 is C-shaped and made of elastic and wear-resistant material. The rotating pad 5 is inserted into the surface of the rotating disk 4 and slides freely between the rotating disk 4 and the third limiting disk 8. The rotating pad 5 not only lubricates the rotating disk 4 and the third limiting disk 8, but also reduces frictional wear between them. Also, because it is made of elastic material, it can absorb the axial impact force suddenly received by the rotating mechanism 1 and extend its service life.

[0089] In some embodiments of the present invention Figure 4 A top connection diagram of an upper cover plate according to an embodiment of the present invention is shown. Figure 5 A bottom connection diagram of an upper cover plate according to an embodiment of the present invention is shown, as follows. Figure 4 and Figure 5 As shown, the upper cover plate 2 is fixedly connected to the rotating disk 4 by the fixing bolt 17, the upper cover plate 2 is fixedly connected to the first limiting disk 6 by the fixing bolt 17, the upper cover plate 2 is fixedly connected to the second limiting disk 7, and the upper cover plate 2 is fixedly connected to the upper fixing plate 11 by the fixing bolt 17.

[0090] In some embodiments of the present invention Figure 6 A diagram showing a lower cover plate connection according to an embodiment of the present invention is provided, as follows: Figure 6 As shown, the lower cover plate 3 is fixedly connected to the third limiting plate 8 by the fixing bolt 17, the lower cover plate 3 is fixedly connected to the locking plate 9, the lower cover plate 3 is fixedly connected to the fourth limiting plate 10, and the lower cover plate 3 is fixedly connected to the lower fixing plate 12 by the fixing bolt 17.

[0091] It is evident that this connection method not only ensures a tight connection between the upper and lower cover plates and each component, but also facilitates subsequent disassembly, replacement, and maintenance.

[0092] In some embodiments of the present invention Figure 7 A cross-sectional view of a rotating mechanism according to an embodiment of the present invention is shown, such as Figure 1 , Figure 2 and Figure 7 As shown, the rotating disk 4 and the third limiting disk 8 move relative to each other, and when they rotate, they push the rotating pad 5 to rotate between them. The first limiting disk 6 and the locking disk 9 rotate relative to each other.

[0093] In some embodiments of the present invention, such as Figure 2 , Figure 3 and Figure 7 As shown, the second limiting disk 7 and the fourth limiting disk 10 are C-shaped. Each of the second limiting disk 7 and the fourth limiting disk 10 has one end located inside the groove of the other. The second limiting disk 7 and the fourth limiting disk 10 rotate relative to each other, and the second limiting disk 7 and the fourth limiting disk 10 restrict each other from making axial movements.

[0094] It is evident that this structural design can ensure that both parts can rotate in the horizontal direction, and also ensure that they are mutually restricted and cannot separate when subjected to axial impact force, thereby improving the impact resistance and stability of the entire rotating mechanism.

[0095] In some embodiments of the present invention Figure 8 A connection diagram of a mechanical locking mechanism according to an embodiment of the present invention is shown, as follows. Figure 7 and Figure 8 As shown, the locking mechanism 13 can be a mechanical locking mechanism 14, which includes a locking seat 13-1, a latch 13-2, a rotating shaft 13-3, a first return spring 13-4, a second return spring 14-1, a control rod 14-2, a limit pin 14-3, and a locking pin 14-4.

[0096] Specifically, the locking seat 13-1 is fixedly connected to the upper cover plate 2 by the fixing bolt 17. The rotating shaft 13-3 passes through the latch 13-2 and the first return spring 13-4 and is adaptively connected to the locking seat 13-1. The control rod 14-2 passes through the second return spring 14-1 and the limit pin 14-3 and is adaptively connected to the upper fixing plate 11. One end of the locking pin 14-4 is connected to the control rod 14-2 and the other end is located on the latch 13-2. When locked, the latch 13-2 is located in the limit hole 9-1 provided on the locking disc 9.

[0097] As can be seen, the design of the locking seat 13-1 can ensure that the entire mechanical locking mechanism 14 rotates together with the upper cover plate 2 when it is unlocked. The design of the first return spring 13-4 is mainly for the lock 13-2 to automatically reset after it is unlocked and popped up. The design of the second return spring 14-1 is mainly for the control lever 14-2 to automatically reset after it is unlocked and rotated.

[0098] In some embodiments of the present invention Figure 9 A perspective view of a gas valve according to an embodiment of the present invention is shown. Figure 10 A cross-sectional view of a gas valve according to an embodiment of the present invention is shown, such as Figure 7 , Figure 9 and Figure 10 As shown, the locking mechanism 13 can be a pneumatic locking mechanism 15, which includes a locking seat 13-1, a latch 13-2, a rotating shaft 13-3, a first return spring 13-4, and an air valve 15-1.

[0099] Specifically, the air valve 15-1 includes a valve body 15-2, a valve stem 15-3, a third return spring 15-4, a sealing ring 15-5, and an air nozzle 15-6;

[0100] Specifically, the locking seat 13-1 is fixedly connected to the upper cover plate 2 by the fixing bolt 17, and the rotating shaft 13-3 passes through the latch 13-2 and the first return spring 13-4 and is adaptively connected to the locking seat 13-1;

[0101] Specifically, when locked, the latch 13-2 is located within the limiting hole 9-1 provided on the locking disc 9;

[0102] Specifically, the valve body 15-2 has a hollow structure in the middle and through holes on both sides. The valve body 15-2 is fixedly connected to the upper fixing plate 11 by the fixing bolt 17. One end of the valve body 15-2 is fixedly connected to the air nozzle 15-6 through hole.

[0103] Specifically, one end of the valve stem 15-3 is located inside the valve body 15-2, and the other end of the valve stem 15-3 passes through the through hole of the valve body 15-2 and is located on the latch 13-2;

[0104] Specifically, the third return spring 15-4 and the sealing ring 15-5 are disposed on the valve stem 15-3. The third return spring 15-4 is mainly used for the reset of the valve stem 15-3, and the sealing ring 15-5 can isolate the valve body 15-2 into two independent cavities.

[0105] It is evident that the rotating mechanism can be unlocked either mechanically or via a pneumatic valve.

[0106] In some embodiments of the present invention, such as Figure 3 , Figure 7 and Figure 8 As shown, the detection mechanism 16 is fixedly connected to the lower cover plate 3 by the fixing bolt 17. The detection mechanism 16 is located directly below the limiting hole 9-1 provided on the locking plate 9. The detection mechanism 16 can detect at all times whether the latch 13-2 inside the limiting hole 9-1 has popped out. If the latch 13-2 is detected to have left the limiting hole 9-1, a warning will be issued to the user.

[0107] It is evident that this design can prevent damage caused by users forgetting to lock the rotating mechanism in time, which could result in the rotating mechanism suddenly rotating under external force.

[0108] like Figure 2 , Figure 7 and Figure 8 As shown, the working principle of the rotating mechanism 1 using the mechanical locking mechanism 14 is as follows:

[0109] When the user controls the control lever 14-2 to rotate, the locking pin 14-4 presses down on the latch 13-2, the latch 13-2 disengages from the limiting hole 9-1 provided on the locking disc 9, and the locking mechanism 13 enters the unlocked state. At this time, the user can rotate the upper cover plate 2 or the lower cover plate 3.

[0110] When the user does not control the rotation of the control lever 14-2, the control lever 14-2 returns to its initial position under the elastic force of the second return spring 14-1. At this time, the latch 13-2 falls onto the locking disc 9 under the elastic force of the first return spring 13-4. As the user continues to rotate the upper cover plate 2 or the lower cover plate 3, when the latch 13-2 falls into the limiting hole 9-1 provided on the locking disc 9, the mechanical locking mechanism 14 enters the locking state. At this time, the user cannot rotate the upper cover plate 2 or the lower cover plate 3.

[0111] like Figure 2 , Figure 7 and Figure 10 As shown, the working principle of the rotating mechanism 1 using the pneumatic locking mechanism 15 is as follows:

[0112] When the air nozzle 15-6 is inflated, the valve stem 15-3 moves outward due to air pressure, which in turn pushes the latch 13-2 to pop up. The latch 13-2 disengages from the limiting hole 9-1 provided on the locking disc 9, and the locking mechanism 13 enters the unlocked state. At this time, the user can rotate the upper cover plate 2 or the lower cover plate 3.

[0113] When the air nozzle 15-6 vents air, the valve stem 15-3 returns to its initial position under the elastic force of the third return spring 15-4. At this time, the latch 13-2 falls onto the locking disc 9 under the elastic force of the first return spring 13-4. As the user continues to rotate the upper cover plate 2 or the lower cover plate 3, when the latch 13-2 falls into the limiting hole 9-1 provided on the locking disc 9, the mechanical locking mechanism 14 enters the locking state. At this time, the user cannot rotate the upper cover plate 2 or the lower cover plate 3.

[0114] Example 2:

[0115] According to another aspect of the present invention, an automobile seat 18 is designed. Figure 11 A diagram illustrating a seat assembly according to an embodiment of the present invention is shown, such as... Figure 11 As shown, the car seat 18 includes any one of the rotating mechanisms 1 described above. Other components of the car seat 18 can be fixedly connected to the rotating mechanism 1 through the upper fixing hole 2-1 and the lower fixing hole 3-1. The rotating mechanism 1 can be located in the middle of the car seat 18 or at the bottom of the car seat 18. The user can choose the connection position according to his or her driver's needs.

[0116] In summary, this rotating mechanism effectively solves the problems of traditional ball bearing structures, such as indentation and deformation of the balls due to excessive local pressure, increased gaps, uneven rotation, and increased noise. Simultaneously, its unique design effectively buffers impacts from all directions, reducing damage to connected components like seats. The mechanism's special design results in a total thickness of only about 30mm, making it suitable for environments where traditional rotating mechanisms cannot be installed, such as light truck seats. The simple design of the upper and lower covers allows for seamless operation in practical use, further enhancing its ability to handle special environments, such as top-mounted, bottom-mounted, or simultaneous top-bottom connections of the slide rails. The rotating mechanism incorporates two locking mechanisms to meet various user needs, and the detection mechanism prevents potential injury from sudden rotation during use if the user fails to lock the mechanism properly.

[0117] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. A rotating mechanism, characterized in that, The rotating mechanism includes an upper cover plate, a lower cover plate, a rotating disk, a rotating pad, a first limiting disk, a second limiting disk, a third limiting disk, a locking disk, a fourth limiting disk, an upper fixing plate, a lower fixing plate, a locking mechanism, a detection mechanism, and fixing bolts; The top of the upper cover plate is provided with multiple upper fixing holes, and the bottom of the lower cover plate is provided with multiple lower fixing holes; The third limiting disk has a special Z-shaped structure, and the top of the third limiting disk presses against a portion of the rotating disk. The top of the locking disc is provided with multiple limiting holes, and the side of the locking disc is provided with multiple arc-shaped sliders; The fourth limiting plate is equipped with multiple elastic sliders.

2. The rotating mechanism as described in claim 1, characterized in that, The rotating pad is C-shaped and made of elastic and wear-resistant material. The rotating pad is inserted into the surface of the rotating disk and slides between the rotating disk and the third limiting disk.

3. The rotating mechanism as described in claim 1, characterized in that, The upper cover plate is fixedly connected to the rotating disk by the fixing bolts, the upper cover plate is fixedly connected to the first limiting disk by the fixing bolts, the upper cover plate is fixedly connected to the second limiting disk, and the upper cover plate is fixedly connected to the upper fixing plate by the fixing bolts.

4. The rotating mechanism as described in claim 1, characterized in that, The lower cover plate is fixedly connected to the third limiting plate by the fixing bolts, the lower cover plate is fixedly connected to the locking plate, the lower cover plate is fixedly connected to the fourth limiting plate, and the lower cover plate is fixedly connected to the lower fixing plate by the fixing bolts.

5. The rotating mechanism as described in claim 1, characterized in that, The rotating disk moves relative to the third limiting disk, and the first limiting disk rotates relative to the locking disk.

6. The rotating mechanism as described in claim 1, characterized in that, The second limiting disk and the fourth limiting disk are C-shaped. The second limiting disk and the fourth limiting disk rotate relative to each other, and the second limiting disk and the fourth limiting disk restrict each other from making axial movements.

7. The rotating mechanism as described in claim 1, characterized in that, The locking mechanism may be a mechanical locking mechanism, which includes a locking seat, a latch, a rotating shaft, a first return spring, a second return spring, a control rod, a limit pin, and a locking pin. The locking seat is fixedly connected to the upper cover plate by the fixing bolt. The rotating shaft passes through the latch and the first return spring and is adaptively connected to the locking seat. The control rod passes through the second return spring and is adaptively connected to the upper fixing plate. One end of the locking pin is connected to the control rod and the other end is located on the latch. When locked, the latch is located in the limiting hole provided by the locking plate.

8. The rotating mechanism as described in claim 1, characterized in that, The locking mechanism may be a pneumatic locking mechanism, which includes a locking seat, a latch, a rotating shaft, a first return spring, and an air valve. The air valve includes a valve body, a valve stem, a third return spring, a sealing ring, and an air nozzle; The locking seat is fixedly connected to the upper cover plate by the fixing bolt, and the rotating shaft passes through the latch and the first return spring and is adaptively connected to the locking seat; When locked, the latch is located within the limiting hole provided on the locking plate; The valve body has a hollow structure in the middle and through holes on both sides. The valve body is fixedly connected to the upper fixing plate by the fixing bolts. One end of the valve body is fixedly connected to the air nozzle through the through hole. One end of the valve stem is located inside the valve body, and the other end of the valve stem passes through the through hole of the valve body and is located on the latch; The third return spring and the sealing ring are mounted on the valve stem.

9. The rotating mechanism as described in claim 1, characterized in that, The detection mechanism is fixedly connected to the lower cover plate by the fixing bolts, and the detection mechanism is located directly below the limiting hole provided on the locking plate.

10. A car seat, characterized in that, The car seat includes any one of the rotating mechanisms described in claims 1-8, and other components of the car seat are fixedly connected to the rotating mechanism through the upper fixing hole and the lower fixing hole.

Images