Seat framework, seat and equipment

Abstract

The utility model relates to a seat framework, a seat and equipment. The seat framework comprises a backrest framework, a cushion framework and a base. One end of the backrest framework is rotatably connected to the rear end of the cushion framework so that the backrest framework can be folded relative to the cushion framework, and the front end of the cushion framework is rotatably connected to the base so that the inclination angle of the cushion framework relative to the base can be adjusted; in the process that the backrest framework is folded towards the position close to the cushion framework, the cushion framework can move downwards and forwards at the same time. The height of the backrest framework can be reduced through the cushion framework moving downwards, more space located above the seat is reserved, and therefore a larger storage space can be obtained after the seat is turned over. Meanwhile, the front end of the cushion framework is rotatably connected to the base, so that the inclination angle of the cushion framework relative to the base can be adjusted, and the requirements of passengers with different figures on different sitting spaces and sitting postures can be met.

Description

Technical Field

[0001] The present disclosure relates to the technical field of seats, and in particular, to a seat frame, a seat and equipment. Background Art

[0002] In vehicles in the related art, especially large SUV and MPV vehicles, seats (such as rear seats) can usually be folded and stowed in order to obtain a larger luggage compartment space.

[0003] However, the folded seats still occupy a large space, for example, they still occupy part of the luggage compartment space, which cannot meet the use requirements and may not meet the requirements for loading and storing luggage. When there are passengers in the back row, the seats cannot meet the riding needs of different passengers. Utility Model Content

[0004] The purpose of the present disclosure is to provide a seat frame, a seat and equipment to solve the above technical problems.

[0005] In order to achieve the above-mentioned object, as a first aspect of the present disclosure, the present disclosure provides a seat frame, including a backrest frame, a seat cushion frame and a base;

[0006] One end of the backrest frame is rotatably connected to the rear end of the seat cushion frame so that the backrest frame can be folded relative to the seat cushion frame;

[0007] The front end of the seat cushion frame is rotatably connected to the base so that the inclination angle of the seat cushion frame relative to the base can be adjusted;

[0008] Furthermore, the seat cushion frame is configured so that, during the process of the backrest frame being folded toward the seat cushion frame, the seat cushion frame can move downward and forward simultaneously.

[0009] Optionally, the seat frame includes a linkage mechanism;

[0010] One end of the connecting rod mechanism is hinged to the base, and the other end of the connecting rod mechanism is hinged to the front end of the seat cushion frame, so that the inclination angle of the seat cushion frame relative to the base can be adjusted;

[0011] The seat cushion frame is configured to be able to move downward and forward simultaneously during the process of rotating around the hinge point where the connecting rod mechanism is hinged to the base.

[0012] Optionally, the connecting rod mechanism includes a connecting rod and a crank, the crank is hinged to the base, and one end of the crank is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the front end of the seat cushion frame.

[0013] Optionally, the seat frame further comprises the first driving mechanism;

[0014] The first driving mechanism is in driving connection with the connecting rod mechanism and is used for driving the seat cushion frame to rotate relative to the connecting rod mechanism, so as to adjust the inclination angle of the seat cushion frame relative to the base.

[0015] Optionally, the first driving mechanism comprises a gear and a first motor, the first motor is arranged on the base, and the gear is axially locked and sleeved on the output shaft of the first motor;

[0016] The connecting rod mechanism includes a connecting rod and a crank, wherein the crank is hinged to the base, and one end of the crank is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the front end of the seat cushion frame;

[0017] The other end of the crank is provided with a meshing portion having a plurality of meshing teeth, and the meshing portion is suitable for meshing with the gear to adjust the rotation angle of the crank relative to the base.

[0018] Optionally, the seat frame comprises at least two of the link mechanisms, and the at least two link mechanisms are arranged at intervals along the width direction of the seat frame;

[0019] The seat frame further comprises a connecting member, and the connecting member is used to connect at least two of the connecting rod mechanisms.

[0020] Optionally, the seat cushion frame includes a connecting frame arranged at the rear end of the seat cushion frame;

[0021] The connecting frame is hinged to one end of the backrest frame;

[0022] The connecting frame is constructed as a bent structure bent toward the upper side of the seat frame.

[0023] Optionally, the seat frame further includes a fixing seat, the backrest frame is hinged to the fixing seat, and the fixing seat is used to support the backrest frame.

[0024] Optionally, the seat frame further includes a second driving mechanism, and the second driving mechanism is used to drive the backrest frame to rotate relative to the fixing seat, so as to achieve folding of the backrest frame relative to the seat cushion frame.

[0025] Optionally, the second driving mechanism includes a second motor and a recliner, and the seat frame further includes a connecting shaft connected to the recliner;

[0026] The second motor is arranged on the backrest frame, and the second motor is drivingly connected to the angle adjuster through the connecting shaft, so that under the action of the second motor and the angle adjuster, the backrest frame can be folded relative to the seat cushion frame.

[0027] Optionally, the number of the fixing seats is at least two, the number of the angle adjusters is at least two, one of the angle adjusters is arranged between one of the fixing seats and the backrest frame, and the other angle adjuster is arranged between another of the fixing seats and the backrest frame;

[0028] The two fixing seats are arranged along the width direction of the seat frame;

[0029] The two ends of the connecting shaft are respectively connected to one of the angle adjusters.

[0030] Optionally, the hinge point between the fixed seat and the backrest frame is the first hinge point, the hinge point between the seat cushion frame and the backrest frame is the second hinge point, and the first hinge point is closer to the end of one end where the backrest frame and the seat cushion frame are connected relative to the second hinge point.

[0031] As a second aspect of the present disclosure, the present disclosure provides a seat, comprising the above-mentioned seat frame.

[0032] As a third aspect of the present disclosure, the present disclosure provides a device including the above-mentioned seat.

[0033] Optionally, the device is a vehicle, and the seat is a rear seat of the vehicle.

[0034] Through the above technical solution, when the backrest frame is folded forward, the seat cushion frame can move downward and forward at the same time. The seat cushion frame moving downward can lower the height of the backrest frame when the backrest frame is in the forward folded state, so as to make more space above the seat, and reduce the space occupied by the seat frame and the seat as a whole. In this way, after the seat is folded, a larger storage space can be obtained. At the same time, the front end of the seat cushion frame is rotatably connected to the base, so that the inclination angle of the seat cushion frame relative to the base can be adjusted, so as to meet the needs of passengers of different body shapes for riding space and riding posture.

[0035] Furthermore, the seat cushion frame that moves forward can also move the backrest frame forward when the backrest frame is in a forward folded state, thereby making more space behind the seat. When the above-mentioned seat frame is used as a rear seat of a vehicle (such as a hatchback), the seat cushion frame that moves forward can also increase the storage space of the trunk behind the seat frame.

[0036] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0038] Figure 1 is a three-dimensional schematic diagram of a seat frame provided by an embodiment of the present disclosure;

[0039] Figure 2 is a three-dimensional schematic diagram of a seat frame provided by an embodiment of the present disclosure, wherein the backrest frame is in a folded state;

[0040] Figure 3 is a side view schematic diagram of a seat frame provided by an embodiment of the present disclosure;

[0041] Figure 4 is a side view schematic diagram of a seat frame provided by an embodiment of the present disclosure, wherein the backrest frame is in a folded state;

[0042] Figure 5 is a three-dimensional schematic diagram of a seat frame provided by an embodiment of the present disclosure, wherein the seat cushion frame is located at the lowest position;

[0043] Figure 6 A schematic side view of a seat frame provided by an embodiment of the present disclosure, wherein the seat cushion frame is located at the lowest point;

[0044] Figure 7 is a three-dimensional schematic diagram of a seat frame provided by an embodiment of the present disclosure (with Figure 1 different perspectives);

[0045] Figure 8 yes Figure 7 Enlarged schematic diagram of part A.

[0046] Description of Reference Numerals

[0047] 100-seat frame; 1-backrest frame; 2-cushion frame; 21-connecting frame; 3-base; 4-first driving mechanism; 41-gear; 42-first motor; 5-connecting rod mechanism; 51-connecting rod; 52-crank; 521-engaging part; 6-connecting piece; 7-fixed seat; 8-second driving mechanism; 81-second motor; 9-connecting shaft; 10-first hinge point; 11-second hinge point. DETAILED DESCRIPTION

[0048] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0049] In the present disclosure, unless otherwise specified, directional words such as "upper" and "lower" are generally defined based on the drawing direction of the corresponding drawings. "Inner" and "outer" refer to the inner and outer sides of the contour of the corresponding component. In addition, the terms "first", "second", etc. are only used to distinguish descriptions and cannot be understood as indicating or implying relative importance and order.

[0050] As mentioned above, in the related art, the space occupied by the seats after being folded and stowed is still relatively large and may not meet the usage requirements.

[0051] In view of this, as one aspect of the present disclosure, Figures 1 to 8 As shown, the present disclosure provides a seat frame 100, including a backrest frame 1, a seat cushion frame 2 and a base 3. One end of the backrest frame 1 is rotatably connected to the rear end of the seat cushion frame 2, so that the backrest frame 1 can be folded relative to the seat cushion frame 2. The front end of the seat cushion frame 2 is rotatably connected to the base 3, so that the inclination angle of the seat cushion frame 2 relative to the base 3 can be adjusted. In addition, the seat cushion frame 2 is configured so that when the backrest frame 1 is folded toward the seat cushion frame 2, the seat cushion frame 2 can move downward and forward at the same time.

[0052] Through the above technical solution, in the process of folding the backrest frame 1 forward, the seat cushion frame 1 can move downward and forward at the same time. The seat cushion frame 2 moving downward can lower the height of the backrest frame 1 when the backrest frame 1 is in the forward folded state, so as to make more space above the seat, and reduce the space occupied by the seat frame 100 and the seat as a whole. In this way, after the seat is folded, a larger storage space can be obtained. At the same time, the front end of the seat cushion frame 2 is rotatably connected to the base 3, so that the inclination angle of the seat cushion frame 2 relative to the base 3 can be adjusted, so as to meet the needs of passengers of different body shapes for different riding spaces and riding postures.

[0053] Furthermore, the seat cushion frame 2 that moves forward can also enable the backrest frame 1 to be in a forward folded state, thereby moving the backrest frame 1 forward to make more space behind the seat. When the above-mentioned seat frame 100 is used as a rear seat of a vehicle (such as a hatchback), the seat cushion frame 2 that moves forward can also increase the storage space of the trunk behind the seat frame 100.

[0054] It is understood that the direction "front" in this application refers to the direction in which the face of the occupant is facing when the occupant is in a normal sitting state, and the direction "rear" refers to the direction in which the back of the occupant is facing when the occupant is in a normal sitting state. For example, when the seat is a vehicle seat, the direction in which the front of the vehicle is located is the front, and the direction in which the rear of the vehicle is located is the rear. For details on the front and rear of the seat frame, please refer to the attached Figure 1 and attached Figure 2 The direction the arrow points to.

[0055] In the present disclosure, the seat cushion frame 2 can be connected to the base 3 using any suitable structure to achieve the above-mentioned function of the seat cushion frame 2 moving downward and forward and enabling the inclination angle of the seat cushion frame 2 relative to the base 3 to be adjusted. Figures 1 to 4 As shown, in one embodiment of the present disclosure, the seat frame 100 includes a connecting rod mechanism 5, one end of the connecting rod mechanism 5 is hinged to the base 3, and the other end of the connecting rod mechanism 5 is hinged to the front end of the cushion frame 2, so that the inclination angle of the cushion frame 2 relative to the base 3 can be adjusted, and the cushion frame 2 is configured to be able to move downward and forward simultaneously during the process of rotating around the hinge point where the connecting rod mechanism 5 and the base 3 are hinged.

[0056] In the related art, in order to increase the comfort of riding, the front part of the seat cushion is provided with an upward inclination, which makes the front part of the seat cushion higher than the rear part, thereby increasing the fit between the seat cushion and the human body and improving the comfort of the rider. However, the same inclination cannot be fully applicable to passengers of different body shapes.

[0057] In the present disclosure, the connecting rod mechanism 5 is hinged to the front end of the seat cushion frame 2, so that the front end of the seat cushion frame 2 can be rotatably connected to the base 3, so that the inclination angle of the seat cushion frame 2 relative to the base 3 can be adjusted, and then the seat cushion can be adjusted according to the body shape of the passenger, meeting the needs of different passengers for riding comfort. At the same time, the seat cushion frame 2 with adjustable inclination angle can also adjust the inclination angle when the backrest is in a folded state, so that the seat cushion and the backrest can be close to a state of being parallel to each other, increasing the contact area between the seat cushion and the backrest, reducing the problem of excessive pressure between the seat cushion and the backrest due to the small contact area, and extending the service life of the seat.

[0058] At the same time, the connecting rod mechanism 5 is hinged to the base 3, which is conducive to continuing to provide support for the front end of the seat cushion frame 2 through the connecting rod mechanism 5 while the seat cushion frame 2 moves forward and downward. In addition, the transmission using the connecting rod mechanism 5 is conducive to improving the flexibility of the transmission.

[0059] In the present disclosure, the connecting rod mechanism 5 can play a dual role, that is, through the connecting rod mechanism 5, on the one hand, the technical effect of moving the seat cushion frame 2 downward and forward can be achieved, and on the other hand, the inclination angle of the seat cushion frame 2 relative to the base 3 can also be adjusted.

[0060] The present disclosure does not limit the specific structure of the connecting rod mechanism 5. In one embodiment of the present disclosure, Figures 1 to 4 As shown, the connecting rod mechanism 5 may include a connecting rod 51 and a crank 52, the crank 52 is hinged to the base 3, and one end of the crank 52 is hinged to one end of the connecting rod 51, and the other end of the connecting rod 51 is hinged to the front end of the seat frame 2. The double connecting rod structure of the connecting rod 51 and the crank 52 is used to connect the seat frame 2 and the base 3, which increases the flexibility of the connecting rod mechanism 5 and is more conducive to reducing the resistance of the seat frame 2 during movement.

[0061] In order to facilitate driving the seat cushion frame 2 to rotate, optionally, as Figures 1 to 4 As shown, the seat frame 100 includes a first driving mechanism 4, which is in transmission connection with a connecting rod mechanism 5 and is used to drive the seat cushion frame 2 to rotate relative to the connecting rod mechanism 5, so as to adjust the inclination angle of the seat cushion frame 2 relative to the base 3. Compared with the manual driving method, the first driving mechanism 4 is used to drive the connecting rod mechanism 5 to rotate, which is conducive to increasing the convenience of adjusting the inclination angle of the seat cushion frame 2 and improving the user experience.

[0062] Here, it should be noted that, in the present disclosure, the first driving mechanism 4 can be used to drive the connecting rod mechanism 5 to rotate, or the connecting rod mechanism 5 can be driven to rotate manually, and the present disclosure does not limit this.

[0063] The present disclosure does not limit the specific structure of the first driving mechanism 4. In an embodiment provided in the present disclosure, optionally, as Figure 8 As shown, the first driving mechanism 4 includes a gear 41 and a first motor 42, the first motor 42 is arranged on the base 3, and the gear 41 is axially locked and sleeved on the output shaft of the first motor 42. The connecting rod mechanism 5 includes a connecting rod 51 and a crank 52, the crank 52 is hinged to the base 3, and one end of the crank 52 is hinged to one end of the connecting rod 51, and the other end of the connecting rod 51 is hinged to the front end of the seat cushion frame 2. The other end of the crank 52 is provided with a meshing portion 521 with a plurality of meshing teeth, and the meshing portion 521 is suitable for meshing with the gear 41 to adjust the rotation angle of the crank 52 relative to the base 3.

[0064] As the output shaft of the first motor 42 rotates, the gear 41 mounted on the output shaft of the first motor 42 also rotates accordingly. Since the gear teeth of the gear 41 mesh with the meshing portion 521 of the crank 52, the rotation of the gear 41 can also drive one end of the crank 52 to swing, further driving the connecting rod 51 hinged to the other end of the crank 52 to move, and finally driving the front end of the seat cushion frame 2 to rotate relative to the base 3.

[0065] The gear 41 and the meshing teeth are used to drive the connecting rod 51 to move, which is beneficial to control the moving distance of the connecting rod 51 through the rotation angle of the gear 41, thereby controlling the rotation angle of the seat cushion frame 2, which is beneficial to accurately adjust the inclination angle of the seat cushion frame 2.

[0066] Optionally, a connecting protrusion is formed on the front end of the cushion frame 2, one end of the connecting rod 51 is hinged to the crank 52, and the other end of the connecting rod 51 is hinged to the connecting protrusion. The connecting protrusion is arranged on the front end of the cushion frame 2 to facilitate the connection of the connecting rod 51 and drive the cushion frame 2 to move.

[0067] In another embodiment of the present disclosure, the first driving mechanism 4 may include a gear and a first motor, the first motor is arranged on the base, and the gear is axially locked and sleeved on the output shaft of the first motor. The connecting rod mechanism includes a driving rack, one end of which is hinged to the front end of the seat frame, and the other end is meshed with the gear. The driving rack is formed with teeth meshed with the gear, and can move up and down with the rotation of the gear.

[0068] As mentioned above, in the present disclosure, in addition to adopting the connecting rod mechanism 5, the front end of the seat cushion frame 2 can also be rotatably connected to the base 3 by adopting other structures so that the inclination angle of the seat cushion frame 2 relative to the base 3 can be adjusted. For example, the front end of the seat frame 2 can be movably connected to the base 3 in the front and rear directions of the seat by adopting structures such as rolling members or sliding rails, and can be connected to the base 3 by adopting a retractable structure in the height direction of the seat frame 2.

[0069] Alternatively, if Figure 1 and Figure 5 As shown, the seat frame 100 includes at least two connecting rod mechanisms 5, and the at least two connecting rod mechanisms 5 are arranged at intervals along the width direction of the seat frame 100. The seat frame 100 also includes a connecting member 6, and the connecting member 6 is used to connect the at least two connecting rod mechanisms 5. Among them, at least one first driving mechanism 4 is arranged on the base 3 and is drivingly connected to one of the at least two connecting rod mechanisms 5.

[0070] Since the connecting member 6 connects the two connecting rod mechanisms 5, the two connecting rod mechanisms 5 can move at the same time. Therefore, when the first driving mechanism 4 drives at least one of the two connecting rod mechanisms 5 to rotate, the other connecting rod mechanism 5 arranged at intervals along the width direction of the seat frame 100 will also move at the same time, thereby driving the front end of the seat cushion frame 2 to rotate at two different positions at the same time, increasing the force points that can drive the seat cushion frame 2 to rotate, thereby improving the uniformity of the force applied to the seat cushion frame 2 during the rotation process, and further improving the reliability of the seat cushion frame 2 during the rotation process.

[0071] In order to facilitate the connection of the seat cushion frame 2 with the backrest frame 1, optionally, as Figures 1 to 4As shown, the seat cushion frame 2 includes a connecting frame 21 arranged at the rear end of the seat cushion frame 2, the connecting frame 21 is hinged to one end of the backrest frame 1, and the connecting frame 21 is constructed as a bending structure that bends toward the top of the seat cushion frame 2. By hinge-connecting the connecting frame 21 arranged at the rear end of the seat cushion frame 2 with the backrest frame 1, the seat cushion frame 2 can move forward and downward as the backrest frame 1 is folded. At the same time, the connecting frame 21 is constructed as a bending structure that bends toward the top of the seat cushion frame 2, so that the backrest frame 1 and the seat cushion frame 2 can be more easily parallel to each other when the backrest frame 1 is in the folded state. On the one hand, the contact area between the backrest and the seat cushion can be increased to improve the load-bearing capacity, and on the other hand, the space can be further compressed to provide a larger storage space for the vehicle cabin.

[0072] Alternatively, if Figures 1 to 7 As shown, the seat frame 100 also includes a fixing seat 7, and the backrest frame 1 is hinged to the fixing seat 7, and the fixing seat 7 is used to support the backrest frame 1. The backrest frame 1 can rotate around the hinge point with the fixing seat 7, so as to be folded, and the cushion frame 2 is hinged to the backrest frame 1, and moves forward and downward while the backrest frame 1 is folded. In the above process, the fixing seat 7 can always remain motionless, so as to complete the support of the seat frame 100 in different states, for example, the fixing seat 7 can be fixed to the vehicle body.

[0073] In order to drive the backrest frame 1 to fold, optionally, as Figures 1 to 7 As shown, the seat frame 100 further includes a second driving mechanism 8, which is used to drive the backrest frame 1 to rotate relative to the fixing seat 7, so as to realize the folding of the backrest frame 1 relative to the cushion frame 2. Compared with the manual driving method, the second driving mechanism 8 drives the connecting rod mechanism 5 to fold the backrest frame 1 relative to the cushion frame 2, which is conducive to increasing the convenience of folding the backrest bracket 1 and improving the user experience.

[0074] The present disclosure does not limit the specific structure of the second driving mechanism 8. Optionally, Figures 1 to 7 As shown, the second driving mechanism 8 includes a second motor 81 and a recliner, and the seat frame 100 also includes a connecting shaft 9 connected to the recliner. The second motor 81 is arranged on the backrest frame 1, and the second motor 81 is connected to the recliner through the connecting shaft 9, so that under the action of the second motor 81 and the recliner, the backrest frame 1 can be folded relative to the cushion frame 2. The recliner includes a backrest connecting plate, a cushion connecting plate and a rotating member, the backrest connecting plate and the cushion connecting plate are rotatably connected, the rotating member is arranged between the backrest connecting plate and the cushion connecting plate, the rotating member is connected to the connecting shaft 9, and the backrest connecting plate can rotate around the rotating member under the drive of the rotating member, thereby driving the backrest frame 1 to fold.

[0075] The second motor 81 can drive the connecting shaft 9 to rotate. Since the connecting shaft 9 is in transmission connection with the recliner, as the connecting shaft 9 rotates, the rotating member of the recliner drives the backrest connecting plate to rotate, thereby driving the backrest frame 1 to rotate accordingly, so that the backrest frame 1 is folded toward the seat cushion frame 2. The use of the second motor 81 to drive the backrest frame 1 to fold can improve the convenience of passengers adjusting the backrest angle. The second motor 81 is arranged on the backrest frame 1 to save the layout space of the second motor 81, which is conducive to reducing the space in the vehicle occupied by the seat frame 100.

[0076] It is understandable that the structure and working principle of the angle adjuster are well known to those skilled in the art and will not be elaborated here.

[0077] In another embodiment of the present disclosure, the second drive mechanism 8 may include a second motor and a multi-link structure. The second motor 81 is transmission-connected to the backrest frame 1 via the multi-link structure, so that when the output shaft of the second motor rotates, the multi-link structure can be driven so that the backrest frame can be folded toward the direction close to the seat cushion frame.

[0078] Alternatively, if Figure 1 As shown, the number of the fixing seats 7 is at least two, the number of the recliners is at least two, one of the recliners is arranged between one fixing seat 7 and the backrest frame 1, and the other recliner is arranged between the other fixing seat 7 and the backrest frame 1, the two fixing seats 7 are arranged along the width direction of the seat frame 100, and the two ends of the connecting shaft 9 are respectively connected to one recliner. The two ends of the connecting shaft 9 are respectively connected to the two recliners, and the output end of the second motor 81 is sleeved on the connecting shaft 9 to drive the connecting shaft 9 to rotate.

[0079] In order to facilitate the downward movement of the seat cushion frame 2, optionally, as Figures 1 to 7 As shown, the hinge point between the fixed seat 7 and the backrest frame 1 is the first hinge point 10, and the hinge point between the seat cushion frame 2 and the backrest frame 1 is the second hinge point 11. The first hinge point 10 is closer to the end of the backrest frame 1 and the seat cushion frame 2 connected to each other than the second hinge point 11. When the backrest frame 1 is folded, the backrest frame 1 is hinged to the fixed seat 7 and rotates around the fixed seat 7, and the seat cushion frame 2 is hinged to the backrest frame 1 and moves forward and downward as the backrest frame 1 is folded. The first hinge point 10 is arranged to be closer to the end of the end where the backrest frame 1 and the seat cushion frame 2 are connected relative to the second hinge point 11. When the backrest frame 1 is folded, the second hinge point 11 rotates around the first hinge point 10 and moves forward and downward relative to the original position of the second hinge point 11, so that when the backrest frame 1 is in the folded state, the second hinge point 11 is closer to the front than the first hinge point 10, and the seat cushion frame 2 is located below the backrest frame 1 and is further downward relative to the position when the backrest frame 1 is in the vertical state. This facilitates the forward and downward movement of the seat cushion frame 2.

[0080] As a second aspect of the present disclosure, the present disclosure further provides a seat, including the above-mentioned seat frame 100, and the seat may further include a back cushion and a seat cushion, the back cushion may be installed on the back frame 1, and the seat cushion may be installed on the seat cushion frame 2.

[0081] As a third aspect of the present disclosure, the present disclosure further provides a device, including the above-mentioned seat, that is, provides a device with a seat.

[0082] The present disclosure does not limit the specific category of the equipment. For example, the equipment may be a vehicle, a ship, or furniture.

[0083] Optionally, in the present disclosure, the seat can be a vehicle seat, specifically, the seat can be a rear seat of a vehicle. Using the seat as a rear seat of a vehicle, on the one hand, because the seat back can move forward and downward during the folding process, the volume of the space connecting the trunk of the vehicle and the rear row is increased, and the storage space is increased; on the other hand, in general, the inclination angle of the seat cushion of the rear seat cannot be adjusted. Since the inclination angle of the seat cushion can be adjusted, the riding comfort of the passengers can be further increased.

[0084] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0085] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0086] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A seat frame, characterized in that: It includes a backrest frame, a seat cushion frame and a base; One end of the backrest frame is rotatably connected to the rear end of the seat cushion frame so that the backrest frame can be folded relative to the seat cushion frame; The front end of the seat cushion frame is rotatably connected to the base so that the inclination angle of the seat cushion frame relative to the base can be adjusted; Furthermore, the seat cushion frame is configured so that, during the process of the backrest frame being folded toward the seat cushion frame, the seat cushion frame can move downward and forward simultaneously.

2. The seat frame according to claim 1, characterized in that: The seat frame includes a linkage mechanism; One end of the connecting rod mechanism is hinged to the base, and the other end of the connecting rod mechanism is hinged to the front end of the seat cushion frame, so that the inclination angle of the seat cushion frame relative to the base can be adjusted; The seat cushion frame is configured to be able to move downward and forward simultaneously during the process of rotating around a hinge point where the connecting rod mechanism is hinged to the base.

3. The seat frame according to claim 2, characterized in that: The connecting rod mechanism comprises a connecting rod and a crank, wherein the crank is hinged to the base, and one end of the crank is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the front end of the seat cushion frame.

4. The seat frame according to claim 2, characterized in that: The seat frame also includes a first drive mechanism; The first driving mechanism is in driving connection with the connecting rod mechanism and is used for driving the seat cushion frame to rotate relative to the connecting rod mechanism, thereby adjusting the inclination angle of the seat cushion frame relative to the base.

5. The seat frame according to claim 4, characterized in that: The first driving mechanism comprises a gear and a first motor, the first motor is arranged on the base, and the gear is axially locked and sleeved on the output shaft of the first motor; The connecting rod mechanism includes a connecting rod and a crank, wherein the crank is hinged to the base, and one end of the crank is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the front end of the seat cushion frame; The other end of the crank is provided with a meshing portion having a plurality of meshing teeth, and the meshing portion is suitable for meshing with the gear to adjust the rotation angle of the crank relative to the base.

6. The seat frame according to claim 2, characterized in that: The seat frame comprises at least two link mechanisms, and the at least two link mechanisms are arranged at intervals along the width direction of the seat frame; The seat frame further comprises a connecting member, and the connecting member is used to connect at least two of the connecting rod mechanisms.

7. The seat frame according to any one of claims 1 to 6, characterized in that: The seat cushion frame includes a connecting frame arranged at the rear end of the seat cushion frame; The connecting frame is hinged to one end of the backrest frame; The connecting frame is constructed as a bent structure bent toward the upper side of the seat frame.

8. The seat frame according to any one of claims 1 to 6, characterized in that: The seat frame also includes a fixing seat, the backrest frame is hinged to the fixing seat, and the fixing seat is used to support the backrest frame.

9. The seat frame according to claim 8, characterized in that: The seat frame further comprises a second driving mechanism, and the second driving mechanism is used for driving the backrest frame to rotate relative to the fixing seat, so as to realize the folding of the backrest frame relative to the seat cushion frame.

10. The seat frame according to claim 9, characterized in that: The second driving mechanism includes a second motor and a recliner, and the seat frame also includes a connecting shaft connected to the recliner; The second motor is arranged on the backrest frame, and the second motor is drivingly connected to the angle adjuster through the connecting shaft, so that under the action of the second motor and the angle adjuster, the backrest frame can be folded relative to the seat cushion frame.

11. The seat frame according to claim 10, characterized in that: The number of the fixing seats is at least two, the number of the recliners is at least two, one of the recliners is arranged between one of the fixing seats and the backrest frame, and the other recliner is arranged between another of the fixing seats and the backrest frame; The two fixing seats are arranged along the width direction of the seat frame; The two ends of the connecting shaft are respectively connected to one of the angle adjusters.

12. The seat frame according to claim 8, characterized in that: The hinge point between the fixing seat and the backrest frame is the first hinge point, the hinge point between the seat cushion frame and the backrest frame is the second hinge point, and the first hinge point is closer to the end of one end where the backrest frame and the seat cushion frame are connected relative to the second hinge point.

13. A seat, characterized in that: The invention comprises the seat frame according to any one of claims 1 to 12.

14. A device, characterized in that The apparatus comprises a seat according to claim 13.

15. The device according to claim 14, characterized in that The device is a vehicle, and the seats are rear seats of the vehicle.

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