Vehicle seat and vehicle

Abstract

The utility model discloses a vehicle seat and a vehicle, and relates to the technical field of vehicle seats. The vehicle seat comprises a base, a cushion and an angle adjusting device. The seat cushion is rotationally connected to the base through a seat cushion shaft, one of the base and the seat cushion is a first base body, and the other one is a second base body; the angle adjusting device comprises a ratchet wheel and a clamping jaw, the ratchet wheel is connected to the first base body, and a plurality of ratchets distributed around a first center are arranged on the ratchet wheel; the clamping jaw is rotationally connected to the second base body around a second center, and the connecting line of the second center and the first center is a reference line; wherein the clamping jaw is selectively matched with different ratchets, so that the seat cushion is located at different angle gears; when the clamping jaw is matched with the ratchets, the ratchets at the matched position are located on the side, away from matched rotation of the cushion and the base, of the reference line, and the clamping jaw is clamped on the ratchets when the clamping jaw is pressed downwards. The cushion of the vehicle seat has the angle adjusting and locking functions, and the personalized experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle seats, in particular to a vehicle seat and a vehicle. Background Art

[0002] In some existing truck seats, the seat cushions cannot realize the lockable angle adjustment function, which results in the user being unable to adjust the seat cushion to the optimal angle according to personal preference or comfort requirements and lock it in this position when driving or resting. Users may feel inconvenience when using these seat cushions.

[0003] Therefore, there is room for improvement in vehicle seats. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the first aspect of the utility model aims to provide a vehicle seat, the seat cushion of which has angle adjustment and locking functions, so as to enhance the personalized experience of the user.

[0005] A second aspect of the present invention aims to provide a vehicle.

[0006] According to the first embodiment of the utility model, the vehicle seat comprises a base, a seat cushion and an angle adjustment device. The seat cushion is rotatably connected to the base through a seat cushion shaft, one of the base and the seat cushion is a first base and the other is a second base; the angle adjustment device comprises: a ratchet and a pawl, the ratchet is connected to the first base, and the ratchet is provided with a plurality of ratchets arranged around a first center; the pawl is rotatably connected to the second base around a second center, and the line connecting the second center and the first center is a reference line; wherein the pawl can selectively cooperate with different ratchets to make the seat cushion be located at different angle gears; when the pawl cooperates with the ratchet, the ratchet at the cooperation position is located on the side of the reference line away from the seat cushion and the base where the seat cushion rotates, and the pawl is clamped on the ratchet when pressed down.

[0007] According to the vehicle seat of the embodiment of the utility model, by setting an angle adjustment device, the flexible adjustment and stable locking of the seat cushion angle are achieved. The angle adjustment device combines the cooperation mechanism of the ratchet and the claw, wherein the ratchet is firmly mounted on the seat cushion, and the dense ratchets on it are regularly arranged around the first center, providing a precise gear basis for angle adjustment. The claw is flexibly connected to the base, and its rotation center, i.e., the line connecting the second center and the ratchet center, constitutes a key reference line. During operation, the user can easily adjust the seat cushion to the desired angle. At this time, the claw can accurately and selectively cooperate with the ratchet on the ratchet under the action of gravity or external force, so that the seat cushion stays firmly at any preset angle gear. Through the cooperation of the claw and the ratchet, it is also ensured that when the seat cushion is pressed down, the claw can be reliably stuck on the ratchet, and when a person sits on the seat cushion to make the seat cushion bear force, the seat cushion remains at the current angle gear, thereby ensuring the accuracy and stability of the angle adjustment.

[0008] According to some embodiments of the vehicle seat of the present invention, the angle adjustment device further includes: an elastic member, one end of which is connected to the second base, and the other end of which is connected to the claw, for driving the claw to rotate in the contraction direction of the elastic member.

[0009] According to some embodiments of the vehicle seat of the present invention, the angle adjustment device further comprises: a rotation limiting portion, which is located on the side of the claw facing the contraction direction of the elastic member and is used to stop the claw when the claw disengages from the ratchet.

[0010] In some embodiments, the elastic member is a cylindrical spring, and the rotation limiting portion is a first limiting pin.

[0011] According to some embodiments of the vehicle seat of the present invention, the angle adjustment device also includes: a rotating plate rotatable around the first center, the rotating plate having an arc-shaped surface, the arc-shaped surface being arranged around the first center, the distance between any point on the arc-shaped surface and the first center being an arc distance, the arc distance being greater than or equal to the distance from the tooth top of the ratchet to the first center; the rotating plate rotates relative to the ratchet wheel between a first position and a second position, and when the rotating plate is in the first position and the second position, all the ratchet teeth on the ratchet wheel are located on the side of the rotating plate away from the seat cushion axis.

[0012] In some optional embodiments, the arc surface is an arc surface whose center is located at the first center, and the distances from the tooth tops of the plurality of ratchet teeth to the first center are equal.

[0013] In some optional embodiments, a limiting groove is provided on the rotating plate, and a second limiting pin located in the limiting groove is provided on the ratchet wheel, and the limiting groove is in an arc shape with the first center as the center.

[0014] In some optional embodiments, there is a ratchet groove between two adjacent ratchet teeth, and at least two latch teeth are provided at the end of the claw; when the rotating plate is in the first position, the number of the ratchet grooves on the side of the rotating plate away from the cushion axis is equal to the number of the latch teeth.

[0015] In some optional embodiments, the ratchet wheel is a triangular wheel; when the rotating plate is located at the second position, all the ratchet teeth on the ratchet wheel are located on a side of the rotating plate away from the cushion shaft.

[0016] The vehicle according to the embodiment of the second aspect of the utility model is equipped with the vehicle seat according to the embodiment of the first aspect of the utility model.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic structural diagram of a vehicle seat (when the seat cushion is placed horizontally) according to an embodiment of the utility model;

[0020] Figure 2 This is a schematic structural diagram of a vehicle seat (when the seat cushion is placed vertically) according to an embodiment of the utility model;

[0021] Figure 3 A structural schematic diagram of a seat cushion according to an embodiment of the utility model;

[0022] Figure 4 Another structural schematic diagram of a seat cushion according to an embodiment of the utility model;

[0023] Figure 5 This is a schematic structural diagram of a seat cushion (when placed horizontally) according to an embodiment of the utility model;

[0024] Figure 6 This is a schematic structural diagram of the angle adjustment device (when the seat cushion is placed horizontally) according to an embodiment of the utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the seat cushion (in the process of adjusting from horizontal to vertical) of an embodiment of the utility model;

[0026] Figure 8 This is a schematic structural diagram of the angle adjustment device (during the adjustment process of the seat cushion from horizontal to vertical) of an embodiment of the utility model;

[0027] Fig. 9 This is a schematic structural diagram of a seat cushion (in vertical placement) according to an embodiment of the utility model;

[0028] Fig.10 This is a schematic structural diagram of the angle adjustment device (when the seat cushion is placed vertically) of an embodiment of the utility model;

[0029] Fig.11 This is a schematic diagram of the structure of the seat cushion (in the process of adjusting from vertical to horizontal) according to an embodiment of the utility model;

[0030] Fig.12 It is a schematic structural diagram of the angle adjustment device (during the process of adjusting the seat cushion from vertical to horizontal) of an embodiment of the utility model.

[0031] Reference numerals:

[0032] A vehicle seat 100, a first base 101, a second base 102,

[0033] Base 10, seat cushion 20, seat cushion shaft 30, angle adjustment device 40,

[0034] The ratchet wheel 41 , the ratchet teeth 411 , the ratchet groove 412 , the second limiting pin 413 , the claw 42 , the locking teeth 421 , the elastic member 43 , the rotation limiting portion 44 , the first limiting pin 440 , the rotating plate 45 , the arc surface 451 , and the limiting groove 452 . DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of the present utility model, it should be understood that the terms "center", "vertical", "lateral", "up", "down", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation and be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Reference below Figure 1 - Fig.12 A vehicle seat 100 according to an embodiment of the present invention is described.

[0039] like Figure 1 - Figure 3 As shown, the vehicle seat 100 comprises a base 10 , a seat cushion 20 and an angle adjustment device 40 .

[0040] like Figure 5 , Figure 7 , Fig. 9 and Fig.11 As shown, the seat cushion 20 is rotatably connected to the base 10 via a seat cushion shaft 30 , and one of the base 10 and the seat cushion 20 is a first base 101 , and the other is a second base 102 .

[0041] The base 10 is a stable foundation for the vehicle seat 100. The base 10 is strong enough to withstand the weight of the passengers and various external forces during the vehicle's travel. The base 10 may be equipped with mounting holes fixed to the vehicle floor to ensure the stability and safety of the seat in the vehicle.

[0042] The seat cushion 20 is the part that directly contacts the passenger's body, and the seat cushion 20 is the load-bearing part. Optionally, the seat cushion 20 is filled with a buffer material such as memory foam or spring to provide excellent support and shock absorption effects.

[0043] like Figure 4 , Figure 5 , Figure 7 , Fig. 9 , Fig.11 As shown, the angle adjustment device 40 is used to adjust the angle between the seat cushion 20 and the base 10. The angle adjustment device 40 is located between the seat cushion 20 and the base 10 and is used to adjust the angle between the seat cushion 20 and the base 10. The angle adjustment device 40 has multiple gears, and the user can adjust it to a suitable angle as needed. The angle adjustment device 40 also has a locking function to ensure that the seat cushion 20 remains stable after being adjusted to the desired angle.

[0044] The seat cushion 20 can be adjusted continuously from 0 degrees (horizontally placed) to the maximum angle (close to vertical) by the angle adjustment device 40. This design meets the riding needs of different passengers, and they can find the most suitable sitting posture for themselves whether they are traveling for a short distance or a long distance.

[0045] Combination Figure 1 , Figure 5 When the angle between the seat cushion 20 and the base 10 is 0 degrees (or close to 0 degrees), the seat cushion 20 is placed horizontally to provide a larger seating area for the user. Alternatively, when the backrest of the vehicle seat has a backrest adjustment function, the seat cushion 20 and the backrest can form a lying area together to provide a relatively flat resting experience.

[0046] When the seat cushion 20 forms a certain angle with the base 10, the seat cushion 20 is in an upward lifting posture. This can provide additional support for the passenger's thighs. This design helps to relieve leg fatigue and discomfort caused by long-term riding, and is suitable for passengers who drive long distances or need to ride for a long time.

[0047] When the seat cushion 20 is adjusted to a near vertical position, the maximum angle between it and the base 10 is reached. This arrangement provides a convenient storage method for the user when the seat cushion 20 is not in use, effectively saving space in the vehicle. In addition, when the seat cushion 20 is erected, the area in front of the seat cushion 20 can be automatically vacated, making it easier for the user to place items, further improving the space utilization efficiency and riding convenience in the vehicle.

[0048] It is known that when describing a vehicle seat 100 including a base 10 and a seat cushion 20, we can define one of them as a first base 101 and the other as a second base 102. This definition is mainly for the convenience of explaining the relative position, function and interaction between the two without affecting their specific functions in practical applications.

[0049] To simplify the description, the following description is based on the definition of the seat cushion 20 as the first base 101 and the base 10 as the second base 102. Of course, under reasonable design, the base 10 can also be used as the first base 101 and the seat cushion 20 as the second base 102. In both cases, the installation positions of the ratchet 41 and the claw 42 are interchanged, which is not described here.

[0050] In some embodiments, Figure 5 - Figure 6As shown, the angle adjustment device 40 includes: a ratchet 41 and a claw 42. The ratchet 41 is connected to the first base 101, and a plurality of ratchet teeth 411 arranged around the first center O1 are provided on the ratchet 41. The claw 42 is connected to the second base 102 by rotating around the second center O2, and the line connecting the second center O2 and the first center O1 is the reference line F1. The claw 42 can selectively cooperate with different ratchet teeth 411 to make the seat cushion 20 be located at different angle gears. When the claw 42 cooperates with the ratchet teeth 411, the ratchet teeth 411 at the cooperation position are located on the side of the reference line F1 away from the seat cushion 20 and the base 10 for cooperation and rotation, and the claw 42 is stuck on the ratchet teeth 411 when pressed down.

[0051] In the above technical solution, combined with Figure 4 The ratchet 41 is one of the components of the angle adjustment device 40, and it is firmly connected to the first base 101 (seat cushion 20). Figure 6 A plurality of ratchet teeth 411 are formed on the ratchet wheel 41, and the ratchet teeth 411 are evenly arranged around the first center O1. The shape and distribution of the ratchet teeth 411 are suitable for stably and reliably cooperating with the claws 42, and can provide sufficient resistance to prevent the seat cushion 20 from moving unexpectedly. The total circumference of the ratchet teeth 411 determines the adjustable angle range of the seat cushion 20, and the arrangement spacing between the ratchet teeth 411 determines the adjustable angle interval of the seat cushion 20.

[0052] As one of the components of the angle adjustment device 40, the claw 42 is constructed to be connected to the second base 102 (base 10) by rotation around the second center O2, so that the claw 42 can rotate within a certain range. The claw 42 can selectively cooperate with different ratchet teeth 411 during the rotation process. For example: a specific part of the claw 42 (such as a protrusion, a groove or an inclined surface) will interact with the ratchet teeth 411 on the ratchet 41, and a stable mechanical connection is formed between the two, thereby limiting the further rotation of the seat cushion 20 (the first base 101 relative to the second base 102 of the base 10), realizing the engagement of the seat cushion 20 with the base 10 at different angles, and then realizing the angle adjustment of the seat cushion 20.

[0053] The line connecting the second center O2 and the first center O1 is the reference line F1. The reference line F1 plays a certain reference role in the angle adjustment process. When the claw 42 cooperates with the ratchet 411, the ratchet 411 at the cooperation position is located on the side of the reference line F1 away from the seat cushion 20 and the base 10 for cooperation and rotation, and the claw 42 is stuck on the ratchet 411 when pressed down.

[0054] Here, the side on which the seat cushion 20 rotates with the base 10 is Figure 1-Figure 2 The back side of the.

[0055] Combination Figure 7 - Figure 8As shown, when the seat cushion 20 is lifted and then lowered, the claw 42 automatically or according to the user's manual operation, finds and locks on different ratchet teeth 411 on the ratchet wheel 41, thereby adjusting the angle of the seat cushion 20. Once the user adjusts to a satisfactory angle and releases the seat cushion 20, the claw 42 will be firmly clamped on the corresponding ratchet teeth 411 to keep the seat cushion 20 stable.

[0056] When someone sits on the seat cushion 20, the seat cushion 20 is subjected to downward pressure. However, this pressure is effectively converted into an upward supporting force by the base 10 through the locking seat and the claw 42, and the two reach a state of force balance. Since the ratchet 411 is located on the side of the reference line F1 away from the seat cushion 20 and the base 10 that rotates in coordination, and the ratchet 411 is designed so that the claw 42 can be firmly stuck thereon when pressed down, even if the seat cushion 20 is subjected to downward gravity, the claw 42 will not rotate downward, thereby ensuring that the seat cushion 20 can maintain the adjusted angle unchanged, providing a stable and comfortable riding experience for the passenger.

[0057] It is worth noting that the ratchet 411 can adopt the shape of the ratchet 411 disclosed in the prior art, and there is no limitation here. Generally speaking, the ratchet 411 is constructed in a triangle. The tip of the triangle is connected to the first center O1 of rotation of the claw 42 to form a radius line. It is worth noting that the angles formed by the two sides of the triangle and this radius line are not equal, which we call the small angle line and the large angle line. When the seat cushion 20 is subjected to downward pressure, for example, someone sits on it, the small angle line side of the ratchet 411 will be tightly pressed against the claw 42. At this time, if the claw 42 tries to rotate downward, it will try to push the ratchet 411 to rotate upward. However, since the design of the ratchet 411 does not provide an upward driving force or sufficient space to allow it to move upward, the ratchet 411 will remain in place and the claw 42 will be firmly stuck.

[0058] According to some embodiments of the present invention, the vehicle seat 100 is as follows: Figure 5 , Figure 7 , Fig. 9 and Fig.11 As shown, the angle adjustment device 40 further includes an elastic member 43 , one end of the elastic member 43 is connected to the second base 102 , and the other end is connected to the claw 42 , for driving the claw 42 to rotate in the contraction direction of the elastic member 43 .

[0059] In the above technical solution, when the claw 42 has a tendency to rotate toward the contraction direction of the elastic member 43, the elastic member 43 provides a driving force in this direction. This driving force causes the claw 42 to be tightly pressed against the ratchet 411, especially the side of the small angle line of the ratchet 411, thereby enhancing the locking effect between the claw 42 and the ratchet 411. Here, the contraction direction of the elastic member 43 is Figure 1-Figure 2 In the backward direction.

[0060] When the seat 20 is not subjected to external force (e.g., no one is sitting on it) or is subjected to relatively small external force, the elastic force of the elastic member 43 is sufficient to keep the claw 42 stably stuck on the ratchet 411, thereby ensuring the fixed angle of the seat 20. When the seat 20 is subjected to relatively large downward pressure (e.g., someone is sitting on it), although the claw 42 may slightly rotate due to the sinking of the seat 20, the small angle line design of the ratchet 411 makes the claw 42 encounter greater resistance during the rotation process, and the elastic force of the elastic member 43 also plays a role. The combined effect of the two prevents the claw 42 from easily detaching from the ratchet 411, thereby ensuring the stability and reliability of the angle of the seat 20.

[0061] In addition, the presence of the elastic member 43 also makes the entire angle adjustment device 40 smoother in operation. When the user wants to adjust the angle of the seat cushion 20, he only needs to apply a certain external force to overcome the elastic force of the elastic member 43, so that the claw 42 can be disengaged from the current ratchet 411 and rotated to the next ratchet 411 position for locking. This design ensures both the flexibility of angle adjustment and the stability after the angle is locked.

[0062] According to some embodiments of the present invention, the vehicle seat 100 is as follows: Figure 5 , Figure 7 , Fig. 9 and Fig.11 As shown, the angle adjustment device 40 further includes: a rotation limiting portion 44 , which is located on one side of the claw 42 facing the contraction direction of the elastic member 43 and is used to stop the claw 42 when the claw 42 is disengaged from the ratchet 41 .

[0063] When the claw 42 is in a normal working state, that is, when it cooperates with the ratchet 411 on the ratchet wheel 41, the rotation limiting part 44 will not interfere with the normal rotation of the claw 42. However, once the claw 42 is (or is about to be) disengaged from the ratchet 411, the rotation limiting part 44 will immediately take effect and prevent the claw 42 from continuing to rotate in a certain direction through physical contact. Therefore, the main function of the rotation limiting part 44 is to provide physical resistance for the claw 42 to prevent the claw 42 from excessively rotating to an undesirable position.

[0064] The safety and reliability of the angle adjustment device 40 can be increased by providing the rotation limiting portion 44. Even in extreme cases, the rotation limiting portion 44 can ensure that the claw 42 will not rotate to a position that may damage the seat structure or affect the safety of the passengers.

[0065] Optionally, the rotation limiting portion 44 may be a protrusion, a stopper or any mechanical structure capable of limiting the rotation range of the claw 42 .

[0066] In some embodiments, the elastic member 43 is a cylindrical spring, and the rotation limiting portion 44 is a first limiting pin 440 .

[0067] The cylindrical spring is compact in structure and easy to install, and can also provide stable and controllable elastic force to ensure that the claw 42 can smoothly cooperate with the ratchet 411. Since the diameter, length and material of the cylindrical spring will affect the size and durability of its elastic force, the diameter, length and material of the cylindrical spring can be adjusted and optimized according to specific application requirements.

[0068] Combination Figure 6 , Figure 8 , Fig.10 and Fig.12 As shown, the rotation limiting part 44 is a first limiting pin 440. The first limiting pin 440 is mounted on the second base 102 or a structure connected thereto, and is located on the side of the claw 42 toward the contraction direction of the elastic member 43, so as to ensure that the claw 42 can be effectively stopped when the claw 42 is separated from the ratchet 41. The shape, size and position of the first limiting pin 440 can be determined according to the rotation range and rotation limiting requirements of the claw 42, so as to ensure that the normal rotation of the claw 42 is not hindered, and sufficient blocking force can be provided when necessary.

[0069] According to some embodiments of the present invention, the vehicle seat 100 is as follows: Figure 6 As shown, the angle adjustment device 40 further includes: a rotating plate 45 rotatable around the first center O1, the rotating plate 45 having an arc surface 451, the arc surface 451 being arranged around the first center O1, the distance between any point on the arc surface 451 and the first center O1 being an arc distance D1, the arc distance D1 being greater than or equal to the distance D2 from the tooth top of the ratchet tooth 411 to the first center O1. The rotating plate 45 rotates relative to the ratchet wheel 41 between a first position and a second position, and when the rotating plate 45 is in the first position and the second position, the ratchet wheel 41 is provided with a ratchet tooth 411 on a side of the rotating plate 45 away from the cushion shaft 30.

[0070] The function of the rotating plate 45 is to play a certain bridge role when the seat cushion 20 needs to be adjusted from a vertical angle to a horizontal angle. Since the arc distance D1 from the arc surface 451 on the rotating plate 45 to the first center O1 is designed to be greater than or equal to the distance D2 from the tooth top of the ratchet tooth 411 on the ratchet wheel 41 to the first center O1, this distance D2 design allows the arc surface 451 of the rotating plate 45 to smoothly abut against the claw 42 during the rotation process. When the arc surface 451 abuts against the claw 42, it applies an outward thrust to the claw 42, thereby overcoming the locking force between the claw 42 and the ratchet 411, so that the claw 42 and the ratchet 411 are smoothly disengaged, thereby releasing the locking state of the seat cushion 20 angle.

[0071] Here, combined Fig. 9 - Fig.10 , when the seat cushion 20 is in a vertical or relatively vertical position, the position of the rotating plate 45 is defined as a first position; combined with Fig.11 - Fig.12 , when the seat cushion 20 is in the horizontal position, the position of the rotating plate 45 is defined as the second position.

[0072] The seat cushion 20 rotates downward under the action of the driving force to achieve the angle adjustment from vertical to horizontal. In this process, the claw 42 generates a squeeze friction force with the rotating plate 45 under the continuous force of the elastic member 43. This friction force also causes the rotating plate 45 and the claw 42 to move as a whole away from the seat cushion 20 and the seat 10 to rotate together while the seat cushion 20 moves downward. Figure 1-Figure 2 , that is, the rotating plate 45 and the claw 42 are prompted to move toward the front side as a whole.

[0073] As the seat cushion 20 moves, the rotating plate 45 rotates from the first position to its second position driven by the claw 42. When the rotating plate 45 rotates to the second position, it stops rotating further. However, due to the continuous action of the elastic member 43, the claw 42 continues to move to the side of the seat cushion 20 and the seat 10 for coordinated rotation until the claw 42 re-engages with the ratchet 411 to form a new locking state. This locking effectively fixes the angle of the seat cushion 20 in the lateral position, providing a stable riding environment that is not prone to accidental angle changes.

[0074] In some optional embodiments, the arc surface 451 is an arc surface whose center is located at the first center O1, and the distance D2 from the tooth tops of the plurality of ratchet teeth 411 to the first center O1 is equal.

[0075] Since the distance D2 from the tooth tops of the plurality of ratchet teeth 411 to the first center O1 is designed to be equal, it means that each ratchet tooth 411 on the ratchet wheel 41 is located on the same circumference, and the circumference is parallel to and has a similar radius to the arc surface on the rotating plate 45. Such a design enables the arc surface of the rotating plate 45 to evenly contact the tooth tops of each ratchet tooth 411 during the rotation process, thereby ensuring the continuity and stability of the angle adjustment.

[0076] In addition, this design also brings convenience in processing. Since the arc surface is a regular geometric shape, it can be processed using standard processing equipment and tools. Not only does it improve the processing accuracy, it also reduces the processing cost and time, making the processing process more direct and efficient.

[0077] In some optional embodiments, such as Figure 6 , Figure 8 , Fig.10 and Fig.12 As shown, a limiting groove 452 is provided on the rotating plate 45 , and a second limiting pin 413 located in the limiting groove 452 is provided on the ratchet 41 . The limiting groove 452 is in an arc shape with the first center O1 as the center.

[0078] The limiting groove 452 cooperates with the second limiting pin 413 to effectively limit the rotation range of the rotating plate 45. Figure 7 - Figure 8 As shown, when the rotating plate 45 rotates to the first position, the second limit pin 413 touches an end point of the limit slot 452, thereby preventing the rotating plate 45 from rotating further and preventing the rotating plate 45 from disengaging from the ratchet 41. Under the continuous action of the elastic member 43, the claw 42 continues to maintain the momentum of rotation, gradually transitioning from the original contact state with the ratchet 41 to the contact state with the rotating plate 45.

[0079] During the smooth transition of the seat cushion 20 from the vertical position to the horizontal position, as shown in FIG. Fig. 9 - Fig.10 As shown, the rotating plate 45 rotates along with the synchronous rotation of the claw 42. At this time, the second limit pin 413 slides smoothly along the arc-shaped trajectory of the limit groove 452 with the first center O1 as the center. This design ensures that the movement trajectory of the second limit pin 413 always revolves around a fixed center point, thereby greatly improving the stability and smoothness of the rotation of the rotating plate 45.

[0080] As the rotation continues, when the rotating plate 45 rotates to the second position, Fig.11 - Fig.12As shown, the second limit pin 413 will touch the other end point of the limit slot 452 and stop the rotating plate 45 from rotating, and the claw 42 will continue to rotate under the action of the elastic member 43, gradually transitioning from the original contact state with the rotating plate 45 to the contact state with the ratchet 41, ensuring that the claw 42 can accurately re-engage with the ratchet teeth 411 on the ratchet 41, thereby locking the seat cushion 20 in a horizontal position to prevent it from unexpected angle changes.

[0081] In some optional embodiments, such as Figure 6 , Figure 8 , Fig.10 and Fig.12 As shown, a ratchet groove 412 is provided between two adjacent ratchet teeth 411 , and at least two latch teeth 421 are provided at the end of the claw 42 .

[0082] The claw 42 and the ratchet 41 are engaged with each other through the engagement of the latch teeth 421 and the ratchet grooves 412 , thereby enhancing the stability of the vehicle seat 100 .

[0083] In some embodiments not shown in the figures, when the rotating plate 45 is located at the first position, the number of the ratchet grooves 412 located on the side of the rotating plate 45 away from the cushion shaft 30 is equal to the number of the latch teeth 421 .

[0084] Firstly, by ensuring a one-to-one correspondence between the number of ratchet grooves 412 and the number of latch teeth 421 , the number of ratchet teeth 411 can be effectively saved while ensuring functionality and safety.

[0085] Secondly, such an arrangement simplifies the structure of the ratchet 41 and reduces the manufacturing cost and complexity.

[0086] In addition, due to the reduction in the number of ratchet teeth 411, the overall weight of the ratchet 41 may also be reduced, which is particularly important for the application of the vehicle seat 100 because it can improve the response speed of the adjustment of the seat cushion 20 while reducing the overall burden of the vehicle seat 100, thereby helping to achieve lightweighting of the vehicle.

[0087] In some optional embodiments, the ratchet wheel 41 is a triangular wheel.

[0088] By designing the ratchet 41 as a triangular wheel, the distribution of the ratchet teeth 411 is more compact and orderly, which facilitates stable cooperation with the claw 42 .

[0089] When the rotating plate 45 is located at the second position, all the ratchet teeth 411 on the ratchet wheel 41 are located at a side of the rotating plate 45 away from the cushion shaft 30 .

[0090] Since all ratchets 411 are concentrated on the same side of the rotating plate 45, a reliable locking point and support force are provided for the seat cushion 20 during the process of adjusting from the horizontal position to the vertical position (or any intermediate angle). This means that all ratchets 411 are not blocked by the rotating plate 45, and they are completely exposed and available, so that the claws 42 that cooperate with them can dock and achieve reliable engagement at each rotation point. Such a setting of the ratchet 41 not only ensures that the seat cushion 20 can be smoothly adjusted to the angle required by the user, but also ensures that the adjusted seat cushion 20 can be firmly maintained in that position, avoiding unnecessary shaking or accidental sliding, thereby improving the safety and comfort of use.

[0091] The vehicle according to the embodiment of the second aspect of the utility model is equipped with the vehicle seat 100 according to any one of the embodiments of the first aspect of the utility model.

[0092] By providing the vehicle seat 100 of the first embodiment of the utility model, the vehicle seat 100 can not only have a basic sitting function, but also integrate an angle adjustment locking function to meet the user's personal preferences and driving or sitting needs to adjust the tilt angle of the seat cushion 20. At the same time, by adjusting the seat cushion 20 to a vertical storage state, more space can be freed up in the vehicle, thereby improving the space utilization rate inside the vehicle.

[0093] Optionally, the vehicle of the present invention may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. The type of vehicle may be a sedan, a sports utility vehicle, a truck, etc.

[0094] Reference below Figure 1 - Figure 8 The vehicle seat 100 according to the embodiment of the utility model is described in detail with a specific embodiment. It is worth noting that the following description is only an exemplary description, and is not a specific limitation to the utility model.

[0095] Reference Figure 1 - Figure 4 The vehicle seat 100 includes: a base 10 , a seat cushion 20 , a seat cushion shaft 30 and an angle adjustment device 40 .

[0096] The seat cushion 20 is rotatably connected to the base 10 via a seat cushion shaft 30 . The base 10 is a first matrix 101 , and the seat cushion 20 is a second matrix 102 .

[0097] The angle adjustment device 40 includes a ratchet 41 , a claw 42 , an elastic member 43 , a rotation limiting portion 44 and a rotating plate 45 .

[0098] The ratchet 41 is connected to the first base body 101 , and the ratchet 41 is a triangular wheel.

[0099] The ratchet 41 includes: a plurality of ratchet teeth 411 arranged around the first center O1 , a ratchet groove 412 between two adjacent ratchet teeth 411 , and a second limiting pin 413 .

[0100] The claw 42 is connected to the second base body 102 and rotates around the second center O2. The line connecting the second center O2 and the first center O1 is the reference line F1.

[0101] The claw 42 can selectively cooperate with different ratchet teeth 411 to enable the seat cushion 20 to be located at different angle positions.

[0102] When the claw 42 cooperates with the ratchet 411, the ratchet 411 at the cooperation position is located on the side of the reference line F1 away from the cooperation rotation of the seat cushion 20 and the seat 10, and the claw 42 is stuck on the ratchet 411 when pressed down.

[0103] One end of the elastic member 43 is connected to the second base 102, and the other end is connected to the claw 42, for driving the claw 42 to rotate in the contraction direction of the elastic member 43. The elastic member 43 is a cylindrical spring.

[0104] The rotation limiting portion 44 is located at one side of the claw 42 facing the contraction direction of the member 43 and is used to stop the claw 42 when the claw 42 is separated from the ratchet 41. The rotation limiting portion 44 is a first limiting pin 440.

[0105] Reference Figure 6 The rotating plate 45 can rotate around the first center O1. The rotating plate 45 includes an arc surface 451 and a limiting groove 452.

[0106] The arc surface 451 is an arc surface whose center is located at the first center O1.

[0107] The distance between any point on the arc surface 451 and the first center O1 is an arc distance D1, and the distances from the tooth tops of the plurality of ratchet teeth 411 to the first center O1 are equal and are D2, satisfying D1≥D2.

[0108] Reference Figure 5 - Figure 8 The rotating plate 45 rotates relative to the ratchet 41 between a first position and a second position. When the rotating plate 45 is in the first position and the second position, all the ratchet teeth 411 on the ratchet 41 are located on a side of the rotating plate 45 away from the cushion shaft 30 .

[0109] The limiting groove 452 is formed on the rotating plate 45 and is in an arc shape with the first center O1 as the center. The second limiting pin 413 is located in the limiting groove 452 .

[0110] Reference Figure 6 , Figure 8The claw 42 includes at least two latch teeth 421 disposed at the end. When the rotating plate 45 is located at the first position, the number of the ratchet grooves 412 located on the side of the rotating plate 45 away from the cushion shaft 30 is equal to the number of the latch teeth 421.

[0111] Reference Figure 7 - Figure 8 When the rotating plate 45 is located at the second position, all the ratchet teeth 411 on the ratchet wheel 41 are located on the side of the rotating plate 45 away from the cushion shaft 30 .

[0112] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0113] Other components of the vehicle seat according to the embodiment of the utility model, such as the vehicle, are known to those skilled in the art and will not be described in detail here.

[0114] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0115] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A vehicle seat, characterized in that: include: Base (10); A seat cushion (20), wherein the seat cushion (20) is rotatably connected to the base (10) via a seat cushion shaft (30), and one of the base (10) and the seat cushion (20) is a first base (101), and the other is a second base (102); An angle adjustment device (40), the angle adjustment device (40) comprising: A ratchet (41), the ratchet (41) being connected to the first base (101), and the ratchet (41) being provided with a plurality of ratchet teeth (411) arranged around a first center; A claw (42), the claw (42) being connected to the second base body (102) so as to rotate around a second center, and a line connecting the second center and the first center being a reference line; Wherein, the claw (42) can selectively cooperate with different ratchet teeth (411) to enable the seat cushion (20) to be located at different angle positions; When the clamping claw (42) cooperates with the ratchet (411), the ratchet (411) at the cooperation position is located on the side of the reference line away from the cooperative rotation of the seat cushion (20) and the base (10), and the clamping claw (42) is clamped on the ratchet (411) when pressed down.

2. The vehicle seat according to claim 1, characterized in that: The angle adjustment device (40) further comprises: An elastic member (43), one end of the elastic member (43) is connected to the second base body (102), and the other end is connected to the clamping claw (42), and is used to drive the clamping claw (42) to rotate in the contraction direction of the elastic member (43).

3. The vehicle seat according to claim 2, characterized in that: The angle adjustment device (40) further comprises: a rotation limiting portion (44), the rotation limiting portion (44) being located on one side of the contraction direction of the elastic member (43) and being used to stop the claw (42) when the claw (42) is disengaged from the ratchet (41).

4. The vehicle seat according to claim 3, characterized in that: The elastic member (43) is a cylindrical spring, and the rotation limiting portion (44) is a first limiting pin (440).

5. The vehicle seat according to claim 2, characterized in that: The angle adjustment device (40) further comprises: a rotating plate (45) rotatable around the first center, the rotating plate (45) having an arc surface (451), the arc surface (451) being arranged around the first center, the distance between any point on the arc surface (451) and the first center being an arc distance, the arc distance being greater than or equal to the distance from the tooth top of the ratchet tooth (411) to the first center; The rotating plate (45) rotates relative to the ratchet (41) between a first position and a second position. When the rotating plate (45) is at the first position and the second position, all the ratchet teeth (411) on the ratchet (41) are located on a side of the rotating plate (45) away from the cushion shaft (30).

6. The vehicle seat according to claim 5, characterized in that: The arc surface (451) is an arc surface whose center is located at the first center, and the distances from the tooth tops of the plurality of ratchet teeth (411) to the first center are equal.

7. The vehicle seat according to claim 5, characterized in that: The rotating plate (45) is provided with a limiting groove (452), the ratchet wheel (41) is provided with a second limiting pin (413) located in the limiting groove (452), and the limiting groove (452) is in the shape of an arc with the first center as the center.

8. The vehicle seat according to claim 5, characterized in that: A ratchet groove (412) is provided between two adjacent ratchet teeth (411), and at least two latch teeth (421) are provided at the end of the claw (42); When the rotating plate (45) is located at the first position, the number of the ratchet grooves (412) located on the side of the rotating plate (45) away from the cushion shaft (30) is equal to the number of the latch teeth (421).

9. The vehicle seat according to claim 5, characterized in that: The ratchet wheel (41) is a triangular wheel; When the rotating plate (45) is located at the second position, all the ratchet teeth (411) on the ratchet wheel (41) are located on a side of the rotating plate (45) away from the cushion shaft (30).

10. A vehicle, characterized in that: Install the vehicle seat (100) according to any one of claims 1 to 9.

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