Automobile rear seat and vehicle

Abstract

The application relates to a rear seat of an automobile and a vehicle. The rear seat of the automobile comprises a seat, a backrest, a locking plate and a limiting piece. The backrest is rotationally arranged on the seat. The locking plate is arranged on one side of the backrest and is fixedly connected with a vehicle body. The locking plate has a plurality of locking grooves. The limiting piece is rotationally connected with the vehicle body. The limiting piece has a first end and a second end. The first end of the limiting piece is abutted against the back of the backrest. The second end of the limiting piece is matched with one of the plurality of locking grooves. The extension direction of the rotation axis of the backrest is consistent with the extension direction of the rotation axis of the limiting piece. The plurality of locking grooves are arranged at intervals along the rotation direction of the limiting piece. The locking plate and the limiting piece which can rotate are arranged on the vehicle body. The backrest is supported by the abutment of the limiting piece. When the limiting piece rotates and the second end of the limiting piece is matched with different locking grooves, the position of the first end of the limiting piece is moved, and the angle of the backrest is adjusted.

Description

Technical Field

[0001] This invention relates to the field of automotive technology, specifically to a rear seat and vehicle. Background Technology

[0002] With the development of society and the economy, cars have become a common household item. At the same time, people's demands for cars have shifted from everyday use to a pursuit of intelligence and comfort. The posture of the person sitting in the car has a significant impact on driving comfort. While front seatbacks typically have a large range of angle adjustment, rear seat backrests are usually not adjustable or have only a limited range of adjustment. Therefore, increasing the adjustability of the rear seat backrest angle can greatly improve the riding comfort of rear passengers.

[0003] There are two existing methods for adjusting the backrest angle of automobile rear seats: one is to embed a ratchet and pawl locking structure inside the seat back, and the other is to install a motor and ball screw at the connection between the seat back and the seat. However, both methods are complex in manufacturing and costly. Therefore, this application provides a new automobile rear seat. Summary of the Invention

[0004] This invention provides a rear seat and vehicle for automobiles, at least solving the problem of complex seatback angle adjustment structures in related technologies. The technical solution of this application is as follows:

[0005] According to a first aspect provided in this application, a rear seat of an automobile includes a seat, a backrest, a locking plate, and a limiting member: the backrest is rotatably mounted on the seat; the locking plate is located on one side of the backrest and is used for fixed connection with the vehicle body, the locking plate having multiple locking grooves; the limiting member is used for rotatably connecting with the vehicle body, the limiting member having a first end and a second end, the first end of the limiting member abutting against the back of the seat back, and the second end of the limiting member engaging with one of the multiple locking grooves; wherein, the extension direction of the rotation axis of the seat back is consistent with the extension direction of the rotation axis of the limiting member, and the multiple locking grooves are spaced apart along the rotation direction of the limiting member.

[0006] When the aforementioned locking plate, which is fixed to the vehicle body, is installed on one side of the seat back, a limiting member is installed between the locking plate and the seat back. The position of the limiting member can be changed, allowing it to rotate on the vehicle body. By rotating the limiting member to different positions, the limiting member can be moved into different locking slots of the locking plate. At this time, the limiting member provides support for the back of the seat back in different positions, which can form different angles between the seat back and the seat, thereby achieving the purpose of adjusting the angle of the seat back.

[0007] In one possible implementation, the rear seat of the car also includes a buckle plate, which is located between the seat back and the locking plate. The buckle plate is used to fix the car body. The buckle plate has an installation groove on the side of the buckle plate near the car body, and the locking plate is located in the installation groove. The buckle plate has a sliding track along the rotation direction of the limiting member, and the limiting member is slidably inserted into the sliding track.

[0008] According to the above technical means, the buckle plate is installed between the chair back and the locking plate, and the buckle plate is provided with a mounting groove for installing the locking plate, which can protect the buckle plate; the buckle plate is also provided with a sliding rail, which can allow the limiting member to move along the rail and move according to a stable movement trajectory, ensuring the fit between the limiting member and the locking groove.

[0009] In one possible implementation, the limiting member is a U-shaped column, which has a sliding end and a rotating end. The sliding end is the second end, and the bend of the U-shaped column is the first end. A first opening is provided on the latch plate. The sliding track is an arc-shaped track and is coaxially arranged with the first opening. The portion between the first end and the second end of the U-shaped column extends into the sliding track. The rotating end is rotatably disposed in the first opening, and the sliding end rotates around the rotating end. The rotation direction of the limiting member is the rotation direction of the sliding end.

[0010] According to the above technical means, when the limiting member is a U-shaped cylinder, the limiting ring can rotate around the rotating end on the vehicle body, and the direction of rotation is consistent with the direction of rotation of the seat back. At this time, the sliding end can slide to different positions, so that the first end of the limiting member can provide support force to the seat back at different positions. At this time, the limiting member part extends into the sliding track, and the sliding track is coaxial with the first opening. This allows the sliding track to be set on the rotation trajectory of the limiting member, avoiding interference between the movement of the sliding end and the rotating end. At the same time, the starting and ending positions of the sliding track can provide a limit to the maximum rotation angle of the sliding end, so that the seat back has a definite maximum offset angle, making the position of the seat back more definite after rotation.

[0011] In one possible implementation, the limiting member further includes a limiting plate disposed within the U-shaped column, and the limiting plate is located on the side of the latching plate away from the locking plate.

[0012] Based on the above technical means, the limiting plate is set in the U-shaped column, which can provide higher connection strength for the U-shaped column body, improve the stability between the two ends of the U-shaped column, and improve the working stability of the limiting component.

[0013] In one possible implementation, a bushing is provided in the first opening, the bushing is fixedly disposed in the first opening, and the rotating end is rotatably disposed in the bushing.

[0014] According to the above technical means, the rotating end is rotatably set inside the bushing, and through the rotational fit relationship between it and the bushing, the sliding end of the U-shaped column can be smoothly rotated around the rotating end.

[0015] In one possible implementation, the locking plate has a second opening located outside the circle of the sliding track; the locking plate also includes a connecting shaft and an adjusting knob, one end of the connecting shaft is rotatably mounted on the locking plate, the connecting shaft passes through the second opening, and the second end of the connecting shaft is fixedly connected to the adjusting knob, so that the locking groove can be locked or the limiting member can be released by rotating the adjusting knob.

[0016] According to the above-mentioned technical means, the adjustment knob passes through the second opening and is opened on the buckle plate, so that the adjustment knob can be located near the seat back of the buckle plate, making it convenient for passengers in the vehicle to use the adjustment knob to lock and open the locking groove, and then rotate to adjust the angle of the seat back.

[0017] In one possible implementation, the number of locking grooves is set to two, with the two locking grooves located at opposite ends of the sliding track.

[0018] According to the above technical means, when the number of locking grooves is set to two, the two locking grooves are located at the starting position of the backrest adjustment position. This facilitates the design and manufacture of the locking plate and makes the backrest more stable at the beginning and end positions, increasing the stability of the backrest after the angle is adjusted and improving the user experience.

[0019] In one possible implementation, the locking plate is provided with a third opening, which communicates with the first opening, and the diameter of the third opening is larger than the diameter of the first opening.

[0020] According to the above technical means, the third opening is opened on the locking plate and communicates with the first opening. It can be used to accommodate the protrusion when the bushing has a protrusion on the side away from the chair back, making the solution more complete and avoiding the instability of the second end of the locking groove and the limiting member due to the collision between the bushing and the locking plate.

[0021] In one possible implementation, the number of limiting members and locking plates is set to two, and the two limiting members and locking plates are respectively disposed on both sides of the chair back.

[0022] According to the above technical means, when both sides of the seat back are equipped with limiting members and locking plates, the seat back of the rear seat can be supported by the two limiting members at the same time, and the angle of the seat back can be adjusted by the synchronous movement of the two limiting members. Moreover, the support of the two limiting members can make the support effect of the seat back better and the position of the seat back more stable.

[0023] According to the second aspect provided in this application, a vehicle is provided, including a vehicle body and a rear seat, wherein the rear seat is the aforementioned rear seat, the vehicle body has a receiving cavity, and the rear seat is disposed in the receiving cavity, and a latch plate is fixedly connected to the inner wall of the vehicle body.

[0024] Based on the above technical means, the technical effects brought about by the second aspect can be seen from the technical effects brought about by the corresponding implementation method in the first aspect, and will not be repeated here.

[0025] Therefore, the above-mentioned technical features of this application have the following beneficial effects:

[0026] (1) When the above-mentioned locking plate fixed on the vehicle body is installed on one side of the backrest, a limiting member is installed between the locking plate and the backrest. The position of the limiting member can be changed so that it can rotate on the vehicle body. By rotating the limiting member to different positions, the limiting member can be moved into different locking slots of the locking plate. At this time, the limiting member provides support for the back of the backrest at different positions, which can form different angles between the backrest and the seat, thereby achieving the purpose of adjusting the backrest angle.

[0027] (2) The buckle plate is installed between the chair back and the locking plate, and the buckle plate is provided with a mounting groove for installing the locking plate, which can protect the buckle plate; the buckle plate is also provided with a sliding rail, which can make the limiting part move along the rail and move according to a stable movement trajectory to ensure the fit between the limiting part and the locking groove.

[0028] (3) When the limiting member is a U-shaped column, the limiting ring can rotate around the rotating end on the vehicle body, and the direction of rotation is consistent with the direction of rotation of the seat back. At this time, the sliding end can slide to different positions, so that the first end of the limiting member can provide support force to the seat back at different positions. At this time, the limiting member part extends into the sliding track, and the sliding track is coaxial with the first opening. The sliding track can be set on the rotation trajectory of the limiting member to avoid interference between the sliding end and the rotating end. At the same time, the starting and ending positions of the sliding track can provide a maximum rotation angle limit for the sliding end, so that the seat back has a definite maximum offset angle, making the position of the seat back more definite after rotation.

[0029] (4) The limiting plate is set in the U-shaped column, which can provide higher connection strength for the U-shaped column body, improve the stability between the two ends of the U-shaped column, and improve the working stability of the limiting component.

[0030] (5) The rotating end is rotatably set inside the bushing, and through the rotational fit relationship between it and the bushing, the sliding end of the U-shaped column can be smoothly rotated around the rotating end.

[0031] (6) The adjustment knob passes through the second opening and is located on the buckle plate, so that the adjustment knob can be located near the back of the seat, making it convenient for passengers in the vehicle to use the adjustment knob to lock and open the locking groove, and then rotate to adjust the angle of the back of the seat.

[0032] (7) When the number of locking slots is set to two, the two locking slots are located at the starting position of the backrest adjustment position. This facilitates the design and manufacture of the locking plate and makes the backrest more stable at the beginning and end positions, increasing the stability of the backrest after adjustment and improving the user experience.

[0033] (8) The third opening is opened on the locking plate and communicates with the first opening. It can be used to accommodate the protrusion when the bushing has a protrusion on the side away from the backrest, making the solution more complete and avoiding the bushing and locking plate from colliding, which would cause the second end of the locking groove and the limiting member to be unstable.

[0034] (9) When both sides of the seat back are equipped with limiting parts and locking plates, the seat back of the rear seat can be supported by the two limiting parts at the same time, and the angle of the seat back can be adjusted by the synchronous movement of the two limiting parts. Furthermore, the support of the two limiting parts can make the support effect of the seat back better and the position of the seat back more stable.

[0035] It should be noted that the technical effects brought about by the second aspect can be referred to the technical effects brought about by the corresponding implementation method in the first aspect, and will not be repeated here.

[0036] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0037] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application, and do not constitute an undue limitation of this application.

[0038] Figure 1 This is a schematic diagram of an assembly of a windshield and decorative parts in related technologies.

[0039] Figure 2 This is a schematic diagram of an assembly of a windshield and decorative parts in related technologies.

[0040] Figure 3 This is an assembly diagram of a windshield, trim pieces, and body sheet metal in related technologies.

[0041] Figure 4 This is an assembly diagram of a windshield, trim pieces, and body sheet metal in related technologies.

[0042] Figure 5This is a schematic diagram illustrating the assembly of the windshield, decorative parts, and body sheet metal in an embodiment of the present invention.

[0043] Figure 6 This is a schematic diagram illustrating the assembly of the decorative parts and the body sheet metal in an embodiment of the present invention.

[0044] Figure 7 This is a schematic diagram illustrating the assembly of the windshield, decorative parts, and body sheet metal in an embodiment of the present invention.

[0045] Figure 8 This is a schematic diagram illustrating the assembly of the decorative parts and the body sheet metal in an embodiment of the present invention.

[0046] Among them, 1-seat; 2-backrest; 3-locking plate; 31-locking groove; 32-connecting shaft; 33-adjusting knob; 34-third opening; 4-limiting component; 4a-first end; 4b-second end; 41-U-shaped column; 41a-rotating end; 42-limiting plate; 5-car body; 6-locking plate; 61-installation groove; 62-sliding rail; 63-first opening; 631-shaft sleeve; 64-second opening. Detailed Implementation

[0047] To enable those skilled in the art to better understand the technical solutions of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0048] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0049] Cars are widely used as a means of transportation in daily life, allowing people to travel, go on business trips, and so on.

[0050] The posture of the human body in the car has a significant impact on driving comfort. Usually, the backrest of the front seat has a large angle adjustment range; however, the backrest angle of the rear seat is not adjustable or has only a small angle adjustment range. Therefore, for rear passengers, increasing the angle adjustment of the rear seat back can greatly improve the riding comfort of rear passengers.

[0051] There are two existing methods for adjusting the angle of the rear seat back in cars. One is to embed a ratchet and pawl locking structure in the seat back, and the other is to set a motor and ball screw at the connection between the seat back and the seat. However, both methods are complex and costly.

[0052] Please refer to Figure 1 and Figure 2 Therefore, this application provides a new rear seat for automobiles, including a seat 1, a seat back 2, a locking plate 3, and a limiting member 4.

[0053] The backrest 2 is rotatably mounted on the seat 1; the locking plate 3 is located on one side of the backrest 2 and is used for fixed connection with the vehicle body 5. The locking plate 3 has multiple locking grooves 31; the limiting member 4 is used for rotatably connecting with the vehicle body 5. The limiting member 4 has a first end 4a and a second end 4b. The first end 4a of the limiting member 4 abuts against the back of the backrest 2, and the second end 4b of the limiting member 4 cooperates with one of the multiple locking grooves 31. The extension direction of the rotation axis of the backrest 2 is consistent with the extension direction of the rotation axis of the limiting member 4, and the multiple locking grooves 31 are spaced apart along the rotation direction of the limiting member 4.

[0054] When the locking plate 3, which is fixed to the vehicle body 5, is installed on one side of the seat back 2, a limiting member 4 is provided between the locking plate 3 and the seat back 2. The position of the limiting member 4 can be changed so that it can rotate on the vehicle body 5. By rotating the limiting member 4 to different positions, the limiting member 4 can be moved into different locking grooves 31 of the locking plate 3. At this time, the limiting member 4 provides support for the back of the seat back 2 at different positions, so that different angles can be formed between the seat back 2 and the seat 1, thereby achieving the purpose of adjusting the angle of the seat back 2.

[0055] Please refer to Figure 1 and Figure 2 In this example, only the locking plate 3 and the limiting member 4 mentioned above need to be installed in the vehicle body 5. The locking plate 3 can be a sheet metal structure on the vehicle body 5, and the locking member can be an independent structure. Therefore, compared with the prior art of adding a motor between the seat 1 and the backrest 2 or embedding a complex mechanical structure in the backrest 2, this solution is simple to implement and has a low cost.

[0056] In some examples, the rear seats of a car are often two or three seats, and all the rear seats are integrated into one unit. In this case, the backrests of all the seats are fixedly connected to form the aforementioned seat back 2, and the seat panels of all the seats form the aforementioned seat 1. In order to allow the seat back 2 to rotate around the seat 1, the seat back 2 and the seat 1 can be connected by a hinge. At the same time, in order to allow the seat back 2 to rotate freely, no obstructions are placed inside the vehicle body 5 along the rotation path of the seat back 2. In this case, the middle part of the seat back 2 may deform due to prolonged leaning. Therefore, a seat back 2 support can also be set on the back of the seat back 2 or inside the seat back 2 to ensure the strength of the seat back 2 and prevent deformation during use.

[0057] In some examples, the locking plate 3 can be directly fitted and fixed inside the vehicle body 5, or it can be connected to the vehicle body 5 through other fixed connecting parts to keep the locking plate 3 and the vehicle body 5 in a relatively fixed state. The locking groove 31 on the locking plate 3 is used to retract the second end 4b of the limiting member 4. Therefore, it can be understood as a lock integrated into the locking plate 3, or the integrated plate itself can be regarded as a lock, and the locking groove 31 is the latch of the lock, achieving one of the locking states through the locking groove 31. The locking groove 31 can use a spring lock, or other snap ring locks or electronic locks, all of which can achieve the locking function.

[0058] In some examples, the rotational connection between the limiting member 4 and the vehicle body 5 is as follows: the limiting member 4 performs circular motion around a point or region located on the vehicle body 5, and in order to ensure the stability of the limiting member 4 in supporting the seat back 2, the limiting member 4 and the back of the seat back 2 should have a stable positional relationship, that is, the line or surface on the limiting member 4 that contacts the seat back 2 should be parallel to the seat back 2. Simultaneously, the direction of the circular motion of the limiting member 4 should be consistent with the rotation direction of the seat back 2.

[0059] In some examples, the limiting member 4 can be a regular shape with only two ends. In this case, the first end 4a and the second end 4b can be the two ends of the limiting member 4. The limiting member 4 can also be an irregular shape, in which case the limiting member 4 may include more than two ends. In this case, the first end 4a still refers to the end used to contact the back of the chair back 2, and the second end 4b still refers to the end used for locking. When the limiting member 4 includes more than one end and the limiting member 4 will rotate along its own axis during operation, the first end 4a can be multiple ends. The ends of the limiting member 4 that can abut against the back of the chair back 2 in a certain state are collectively referred to as the first end 4a.

[0060] Please refer to Figure 3 and Figure 4 In addition, the rear seats of the car also include a buckle plate 6, which is located between the seat back 2 and the locking plate 3. The buckle plate 6 is used to engage with the vehicle body 5. Figure 1 As shown, the locking plate 6 is fixedly connected, and a mounting groove 61 is provided on the side of the locking plate 6 near the vehicle body 5. The locking plate 3 is located in the mounting groove 61. The locking plate 6 is provided with a sliding rail 62 along the rotation direction of the limiting member 4. The limiting member 4 is slidably inserted into the sliding rail 62.

[0061] The buckle plate 6 is installed between the chair back 2 and the locking plate 3, and the buckle plate 6 is provided with a mounting groove 61 for mounting the locking plate 3, which can protect the buckle plate 6; the buckle plate 6 is also provided with a sliding rail 62, which can allow the limiting member 4 to move along the rail and move according to a stable movement trajectory, ensuring the fit between the limiting member 4 and the locking groove 31.

[0062] In some examples, the latch plate 6 can be a sheet metal part installed on the vehicle body 5, or it can be other welded parts or connecting parts that are fixed by threads after abutment.

[0063] Please refer to Figure 5 In some examples, the locking plate 3 and the locking plate 6 are fixedly connected, and there is a gap between the locking plate 3 and the vehicle body 5. This can reduce the probability that the limiting member 4 will hit the vehicle body 5 when it is inserted into the locking groove 31.

[0064] In other examples, the locking plate 3, the latch plate 6, and the vehicle body 5 are sequentially and tightly connected. This method reduces the space occupied by the locking plate 3, optimizing the interior space layout.

[0065] In some examples, the sliding track 62 can be an arc-shaped track, and the direction of extension of the arc-shaped track is consistent with the direction of extension of the chair back 2 in this arc-shaped track area.

[0066] In some other examples, the sliding track 62 can be a linear track, and the extension direction of the linear track is consistent with the tangent direction of one of the rotation directions of the chair back 2 in the area where the linear track is located. In this case, the limiting member 4 can slide along the direction of the linear track to change its position and adjust the angle of the chair back 2.

[0067] Please continue to refer to Figure 3 and Figure 4 Based on this, the limiting member 4 is set as a U-shaped column 41, and the U-shaped column 41 has a sliding end and a rotating end 41a. The sliding end is the second end 4b, and the bend of the U-shaped column 41 is the first end 4a. The locking plate 6 has a first opening 63. The sliding track 62 is an arc track, and the sliding track 62 is coaxially arranged with the first opening 63. The part between the first end 4a and the second end 4b of the U-shaped column 41 extends into the sliding track 62. The rotating end 41a is rotatably arranged in the first opening 63 and the sliding end rotates around the rotating end 41a. The rotation direction of the limiting member 4 is the rotation direction of the sliding end.

[0068] When the limiting member 4 is a U-shaped column 41, the limiting ring can rotate around the rotating end 41a on the vehicle body 5, and the direction of rotation is consistent with the direction of rotation of the seat back 2. At this time, the first end 4a of the limiting member 4 can be slid to different positions to provide support force to the seat back 2 at different positions. At this time, the limiting member 4 is partially inserted into the sliding track 62, and the sliding track 62 is coaxial with the first opening 63. This allows the sliding track 62 to be set on the rotation trajectory of the limiting member 4, avoiding interference between the movement of the sliding end and the rotating end 41a. At the same time, the starting and ending positions of the sliding track 62 can provide a limit to the maximum rotation angle of the sliding end, so that the seat back 2 has a definite maximum offset angle, making the position of the seat back 2 more stable after rotation.

[0069] In some examples, the U-shaped pillar 41 can be a metal pillar or a metal wire, depending mainly on its thickness. Preferably, the U-shaped pillar 41 commonly used in vehicles is made of steel wire with a diameter between 3mm and 8mm.

[0070] In some examples, the end of the U-shaped column 41 may be provided with a corresponding guide. The guide is provided on the U-shaped column 41 outside the sliding track 62, and the guide is in surface contact with the locking plate 6, so that the guide located in the movement track moves stably in a single direction perpendicular to the extension direction of the track, preventing deviation.

[0071] Please continue to refer to Figure 3 and Figure 4 In addition, the limiting member 4 also includes a limiting plate 42, which is disposed inside the U-shaped column 41 and is located on the side of the locking plate 6 away from the locking plate 3.

[0072] The limiting plate 42 is set inside the U-shaped column 41, which can provide higher connection strength for the U-shaped column 41 body, improve the stability between the two ends of the U-shaped column 41, and improve the working stability of the limiting member 4.

[0073] In some examples, the limiting plate 42 can be a metal plate, specifically a steel plate or other alloy plate. The limiting plate 42 should be located outside the locking plate 6 and should not be in contact with the locking plate 6, so that the U-shaped column 41 can rotate more smoothly around the rotating end 41a. The thickness of the limiting plate 42 can be greater than the diameter of the U-shaped column 41, or it can be equal to or less than the diameter of the U-shaped column 41.

[0074] Please refer to Figure 6 In some examples, the limiting plate 42 is set to improve the strength and stability of the U-shaped column 41. Therefore, multiple reinforcing ribs or reinforcing rods can also be set on the U-shaped column 41 to achieve a similar effect to the limiting plate 42.

[0075] Please continue to refer to Figure 3 and Figure 4 Based on this, a bushing 631 is provided in the first opening 63. The bushing 631 is fixedly provided in the first opening 63, and the rotating end 41a is rotatably provided in the bushing 631.

[0076] The rotating end 41a is rotatably set inside the bushing 631, and through the rotational engagement with the bushing 631, the sliding end of the U-shaped column 41 can be smoothly rotated around the rotating end 41a.

[0077] In some examples, the bushing 631 and the rotating end 41a can be connected by a thread. When the bushing 631 and the rotating end 41a are connected by a thread, the U-shaped column 41 will rotate and thus have a displacement perpendicular to the rotation direction of the chair back 2. If necessary, the U-shaped column 41 can slide along the depth direction of the sliding track 62, and the sliding distance should be greater than or equal to the distance of the rotating end 41a of the U-shaped column 41 in that direction.

[0078] In some other examples, the bushing 631 is a bearing or slewing bearing, and the bushing 631 is embedded in the first opening 63. In this case, the rotating end 41a can rotate freely in the first opening 63, and the rotational friction is small.

[0079] Please continue to refer to Figure 3 and Figure 4 Based on this, the locking plate 6 has a second opening 64, which is located outside the circle of the sliding track 62; the locking plate 3 also includes a connecting shaft 32 and an adjusting knob 33. One end of the connecting shaft 32 is rotatably mounted on the locking plate 3, the connecting shaft 32 passes through the second opening 64, and the second end 4b of the connecting shaft 32 is fixedly connected to the adjusting knob 33 so that the locking groove 31 can be locked or the limiting member 4 can be released by rotating the adjusting knob 33.

[0080] The adjustment knob 33 passes through the second opening 64 and is located on the buckle plate 6. This allows the adjustment knob 33 to be positioned close to the seat back 2 on the buckle plate 6, making it convenient for passengers inside the vehicle to use the adjustment knob 33 to lock and open the locking groove 31, thereby rotating and adjusting the angle of the seat back 2.

[0081] In some examples, the second opening 64 on the latch plate 6 is for mounting the adjustment knob 33 in a visible position inside the vehicle body 5, making it easy for passengers to operate. In this case, a gap can be provided between the wall of the second opening 64 and the connecting shaft 32 to allow the rotating shaft to rotate freely. Alternatively, a rubber sleeve, bearing, or other components can be installed between the second opening 64 and the rotating shaft to allow the connecting shaft 32 to rotate freely within the second opening 64 while also sealing the second opening 64.

[0082] In some other examples, adjustment buttons can be set on the buckle plate 6, and the locking groove 31 can be set as the locking groove 31 of the electronic lock. In this case, a circuit can be set in the buckle plate 6 to connect the control button and the locking groove 31. The locking groove 31 can be locked or released by pressing the control button.

[0083] Please continue to refer to Figure 3 Based on this, the number of locking grooves 31 is set to two, and the two locking grooves 31 are located at both ends of the sliding track 62 respectively.

[0084] When the number of locking grooves 31 is set to two, the two locking grooves 31 are located at the starting position of the backrest 2 adjustment position. This facilitates the design and manufacture of the locking plate 3, and makes the backrest 2 more stable at the beginning and end positions, increasing the stability of the backrest 2 after the angle is adjusted and improving the user experience.

[0085] In some examples, the locking grooves 31 are located on the same circle, and both locking grooves 31 are circular grooves with openings, with the openings of the two locking grooves 31 being arranged opposite each other.

[0086] In some other examples, the number of locking grooves 31 can be set to at least three, and the locking grooves 31 are distributed on the movement trajectory of the second end 4b of the U-shaped column 41, so that the backrest 2 has more angle-adjustable fixed positions.

[0087] Please continue to refer to Figure 3 Based on this, a third opening 34 is provided on the locking plate 3. The third opening 34 is connected to the first opening 63, and the diameter of the third opening 34 is larger than the diameter of the first opening 63.

[0088] The third opening 34 is provided on the locking plate 3 and communicates with the first opening 63. It can be used to accommodate the protrusion when the bushing 631 has a protrusion on the side away from the backrest 2, making the solution more complete and avoiding the bushing 631 and the locking plate 3 from colliding, which would cause the locking groove 31 and the second end 4b of the limiting member 4 to be unstable in their fit.

[0089] In some examples, the third opening 34 is mainly used when the bushing 631 protrudes on the side facing the vehicle body 5. Since the locking plate 6 is mostly made of sheet metal, the thickness of the locking plate 6 is relatively thin. In order to make the bushing 631 stable in use, the length of the bushing 631 is greater than the thickness of the sheet metal. At this time, it can be ensured that the bushing 631 is installed while ensuring the connection between the bushing 631 and the rotating end 41a is stable.

[0090] Please refer to Figure 7 Based on this, the number of limiting members 4 and locking plates 3 are both set to two, and the two limiting members 4 and locking plates 3 are respectively set on both sides of the chair back 2.

[0091] When both sides of the seat back 2 are provided with limiting members 4 and locking plates 3, the seat back 2 of the rear seat can be supported by the two limiting members 4 at the same time, and the angle of the seat back 2 can be adjusted by the synchronous movement of the two limiting members 4. Moreover, the support of the two limiting members 4 can make the support effect of the seat back 2 better and the position of the seat back 2 more stable.

[0092] In some examples, the two limiting members 4 can be connected by wire ropes or other rope structures so that after the angle of the chair back 2 is adjusted, the middle part of the chair back 2 can be provided with a certain support effect by the wire ropes.

[0093] In some other examples, the limiting element 4 can also be set to 4 or 6, and all the limiting elements 4 are symmetrically distributed on both sides of the backrest 2. Multiple limiting elements 4 can provide a more stable support effect for the backrest 2.

[0094] A vehicle is provided, including a vehicle body 5 and a rear seat, the rear seat being the aforementioned rear seat, the vehicle body 5 having a receiving cavity, the rear seat being disposed within the receiving cavity, and a latching plate 6 being fixedly connected to the inner wall of the vehicle body 5.

[0095] In some examples, the seat back 2 is the same as described above, and by adding a locking plate 3, a limiting member 4, and a latching plate 6 to the back of the seat back 2, a two-stage angle adjustment is provided for the seat back 2. In this case, the seat back 2 can also be a seat back 2 with two-stage mechanical adjustment capability in related technologies. With the locking plate 3, the limiting member 4, and the latching plate 6 on the vehicle body 5 mentioned above, the seat back 2 can have a three-stage or four-stage angle adjustment function, making the adjustable angle of the seat back 2 greater.

[0096] In the above examples, compared with the method of using a motor, the above methods all use a mechanical structure for manual adjustment, which is simple in structure, low in cost, and easy to install. It can be applied to a variety of car models, and the mechanical structure can make the rotation of the seat back 2 more stable and safer than the electrical structure.

[0097] Please refer to Figure 8 In some examples, the adjustment knob 33 is located inside the vehicle body 5 and exposed to the outside, so that passengers can easily adjust the adjustment knob 33.

[0098] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A rear seat for a vehicle, characterized in that, The automobile rear seat comprises a seat (1), a backrest (2) rotatably arranged on the seat (1), a locking plate (3) arranged on one side of the backrest (2) and fixedly connected with a vehicle body (5), the locking plate (3) is provided with a plurality of locking grooves (31), a limiting piece (4) rotatably connected with the vehicle body (5), the limiting piece (4) is provided with a first end (4a) and a second end (4b), the first end (4a) of the limiting piece (4) abuts against the back of the backrest (2), and the second end (4b) of the limiting piece (4) cooperates with one of the plurality of locking grooves (31), wherein the extension direction of the rotation axis of the backrest (2) is consistent with the extension direction of the rotation axis of the limiting piece (4), and the plurality of locking grooves (31) are arranged at intervals along the rotation direction of the limiting piece (4). The automobile rear seat further comprises a lock catch plate (6) fixedly connected with the vehicle body (5), and the lock catch plate (6) is provided with a sliding track (62) along the rotation direction of the limiting piece (4). The limiting piece (4) is provided as a U-shaped column (41), the U-shaped column (41) is provided with a sliding end and a rotating end (41a), the length of the sliding end is greater than the length of the rotating end (41a), the sliding end is the second end (4b), and the bending part of the U-shaped column (41) is the first end (4a). The lock catch plate (6) is provided with a first opening (63), the sliding track (62) is an arc-shaped track, the sliding track (62) is coaxially arranged with the first opening (63), the part between the first end (4a) and the second end (4b) of the U-shaped column (41) extends into the sliding track (62), the rotating end (41a) is rotatably arranged in the first opening (63), the sliding end rotates around the rotating end (41a), and the rotation direction of the limiting piece (4) is the rotation direction of the sliding end.

2. The automobile rear seat according to claim 1, wherein the lock catch plate (6) is arranged between the backrest (2) and the locking plate (3), the lock catch plate (6) is provided with a mounting groove (61) on the side close to the vehicle body (5), and the locking plate (3) is arranged in the mounting groove (61).

3. The automobile rear seat according to claim 1, wherein the limiting piece (4) further comprises a limiting plate (42), the limiting plate (42) is arranged in the U-shaped column (41), and the limiting plate (42) is arranged on the side of the lock catch plate (6) away from the locking plate (3).

4. The automobile rear seat according to claim 1, wherein an axle sleeve (631) is arranged in the first opening (63), the axle sleeve (631) is fixedly arranged in the first opening (63), and the rotating end (41a) is rotatably arranged in the axle sleeve (631).

5. The automobile rear seat according to any one of claims 1-4, ​ ​ ​ ​ ​ ​ ​ ​ A second opening (64) is formed on the lock plate (6), and the second opening (64) is located outside the circle where the sliding rail (62) is located. The lock plate (3) further comprises a connecting shaft (32) and an adjusting knob (33), one end of the connecting shaft (32) is rotatably arranged on the lock plate (3), the connecting shaft (32) penetrates the second opening (64), and the second end (4b) of the connecting shaft (32) is fixedly connected with the adjusting knob (33), so that the locking groove (31) locks or releases the limiting piece (4) by rotating the adjusting knob (33).

6. The automobile rear seat according to claim 5, characterized in that, The number of the locking grooves (31) is two, and the two locking grooves (31) are respectively located at two ends of the sliding rail (62).

7. The automobile rear seat according to claim 5, characterized in that, The lock plate (3) is provided with a third opening (34), the third opening (34) is in communication with the first opening (63), and the aperture of the third opening (34) is larger than the aperture of the first opening (63).

8. The automobile rear seat according to claim 1, characterized in that, The number of the limiting pieces (4) and the lock plates (3) is two, and the two limiting pieces (4) and the two lock plates (3) are respectively arranged on two sides of the backrest (2).

9. A vehicle characterized by comprising: Including: A vehicle body (5) and an automobile rear seat, the automobile rear seat is the automobile rear seat according to any one of claims 1-8, the vehicle body (5) has a containing cavity, and the automobile rear seat is arranged in the containing cavity, and the lock plate (6) is fixedly connected with the inner wall of the vehicle body (5).

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