Seat and vehicle

Abstract

The utility model relates to the technical field of vehicle seats, and provides a seat and a vehicle, the seat comprises a seat body and a locking assembly, the seat body is rotatably connected with a vehicle body, and the seat body has a folded state and a reset state; the locking assemblies comprise first locking pieces and second locking pieces, the seat body is provided with at least two first locking pieces, the vehicle body is provided with at least two second locking pieces, and the reset tolerance of the seat body is larger than the installation difference value of the locking assemblies so that all the first locking pieces can be buckled with the corresponding second locking pieces in the reset state. According to the seat and the vehicle, the connection reliability of the seat and the vehicle body after the seat is turned over and reset can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle seats, in particular to a seat and a vehicle. BACKGROUND

[0002] In the daily use of vehicles such as SUVs and MPVs, in order to obtain more storage space, the seat usually has a folding function, and after folding and resetting, the seat can be connected to at least two locking members on the vehicle body through at least two locking members thereon. In the related art, after folding and resetting, the locking members of part of the seat and the locking members of the corresponding vehicle body cannot be buckled, which reduces the connection reliability of the seat and the vehicle body. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the embodiments of the present application aim to provide a seat and a vehicle, which can improve the connection reliability of the seat and the vehicle body after folding and resetting.

[0004] In order to achieve the above-mentioned purpose, the technical scheme of the embodiments of the present application is as follows:

[0005] The embodiments of the present application disclose a seat, comprising:

[0006] a seat body, the seat body being rotatably connected to a vehicle body, the seat body having a folding state and a resetting state;

[0007] a locking assembly comprising a first locking member and a second locking member, the seat body being provided with at least two first locking members, the vehicle body being provided with at least two second locking members, a resetting tolerance of the seat body being greater than an installation difference value of the locking assembly, so that all the first locking members are buckled with the corresponding second locking members in the resetting state, wherein the installation difference value is the sum of the maximum height difference between all the first locking members in the upward and downward directions of the vehicle and the maximum height difference between all the second locking members in the upward and downward directions of the vehicle, and the resetting tolerance is the movement value of the position of the seat body in the upward and downward directions of the vehicle in the resetting state.

[0008] In an embodiment, the seat body is formed with a first mounting hole, the seat comprises a fastener, the fastener is connected to the first locking member through the first mounting hole, and the fastener and the first mounting hole are clearance fit.

[0009] In an embodiment, the clearance between the fastener and the first mounting hole is between 0.5mm and 2mm.

[0010] In an embodiment, the seat body is provided with a rigidity weakening structure, the rigidity weakening structure increases the resetting tolerance by reducing the rigidity of the seat body.

[0011] In one embodiment, the seat body includes a seat cushion body, side plates, a first tube, an anti-submarine tube, and a second tube. The first tube is connected to one end of the seat cushion body along a first direction. A first locking member is disposed on the first tube. The second tube and the anti-submarine tube are connected to the other end of the seat cushion body along the first direction. Two side plates are disposed on both sides of the seat cushion body along a second direction. The side plates are fixedly connected to the first tube and the anti-submarine tube. A rigidity weakening structure is disposed between the second tube and the side plates. The first direction, the second direction, and the vertical direction of the vehicle intersect each other.

[0012] In one embodiment, the second gate is spaced apart from the side plate to form the rigidity-weakening structure.

[0013] In one embodiment, the seat body is provided with a first rotating arm at one end relative to the first locking member. The first rotating arm is fixedly connected to the second tube and forms a second mounting hole. The vehicle body is provided with a second rotating arm. The seat includes a rotating shaft, which passes through the second mounting hole and is rotatably connected to the second rotating arm so that the seat body switches between the folded state and the reset state. The rotating shaft and the second mounting hole are clearance-fitted.

[0014] In one embodiment, there may be two of each of the first rotating arm and the second rotating arm. The two first rotating arms are spaced apart on the seat, and the two second rotating arms are correspondingly disposed on the vehicle body. The rotating shaft passes through the second mounting holes of the two first rotating arms, and its two ends are rotatably connected to one of the second rotating arms respectively.

[0015] In one embodiment, the gap between the rotating shaft and the second mounting hole is between 0.05 mm and 0.125 mm.

[0016] Another aspect of this application discloses a vehicle including the seat described in any of the above embodiments.

[0017] The embodiment of the application discloses a seat and a vehicle, the seat body is rotatably arranged with the vehicle body, when the storage space of the vehicle needs to be increased, the seat body can be rotated to be in a folding state, the user experience is good. After the seat is folded and reset, since the reset tolerance of the seat body is greater than the installation difference of the locking assembly, when the first locking piece and the second locking piece are buckled, the movement threshold of the position of the seat body where the first locking piece is installed can correct the installation difference caused by the locking assembly, that is, the maximum height difference between the first locking pieces in the up-down direction of the vehicle and the maximum height difference between all the second locking pieces in the up-down direction of the vehicle are corrected, so that all the first locking pieces on the seat body can move in the up-down direction to be buckled with the corresponding second locking pieces on the vehicle body, so that in the reset state, the connection reliability of the seat and the vehicle body and the riding safety can be improved by locking of the at least two first locking pieces and the at least two second locking pieces. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The maximum height difference between all the first locking pieces in the up-down direction of the vehicle, the maximum height difference between all the second locking pieces in the up-down direction of the vehicle and the reset tolerance;

[0019] Figure 2 A structural schematic diagram of a seat provided by the embodiment of the application, wherein the seat body is in a reset state, and the backrest framework is laid down;

[0020] Figure 3 A structural schematic diagram of a seat provided by another embodiment of the application, wherein the seat body is in a reset state, and the backrest framework is unfolded;

[0021] Figure 4 A structural schematic diagram of an installation panel, a first locking piece and a protective plate provided by still another embodiment of the application;

[0022] Figure 5 A partial structural schematic diagram of a seat provided by still another embodiment of the application;

[0023] Figure 6 A structural schematic diagram of a tooling and a seat provided by still another embodiment of the application, wherein the seat body is in a folding state.

[0024] BRIEF DESCRIPTION OF DRAWINGS

[0025] 100, seat; 1, seat body; 1a, rigid weakening structure; 1b, first rotating arm; 1c, second mounting hole; 11, seat cushion body; 12, side plate; 13, first pipe; 131, pipe body; 132, mounting sheet metal; 132a, first mounting hole; 14, anti-submarine pipe; 15, second pipe; 2, locking assembly; 21, first locking piece; 21a, welded nut; 22, second locking piece; 3, fastener; 4, protective plate; 5, backrest framework; 6, rotating shaft; 7, rotating shaft; A, second rotating arm; 200, tooling; 201, mounting platform; 202, first support arm; 203, second support arm. DETAILED DESCRIPTION

[0026] It should be noted that the embodiments and technical features in the present application can be combined with each other without conflict, and the detailed description in the specific embodiments should be understood as an explanation and description of the purpose of the present application, and should not be regarded as an improper limitation of the present application.

[0027] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. The "first", "second" and the like in the embodiments of the present application are only for the purpose of description, and should not be understood as indicating or implying their relative importance or implicitly including at least one feature. In the description of the embodiments of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In order to better understand the seat 100 provided by the present application, the vehicle is first described.

[0029] The present application provides a vehicle, which includes the seat 100 in any one of the following embodiments.

[0030] For example, the vehicle includes a vehicle body, and the seat 100 is arranged on the vehicle body.

[0031] For example, the seat 100 can be a rear seat 100, and of course can also be a front seat 100.

[0032] For example, the vehicle can be a fuel vehicle, a hybrid vehicle, an extended-range vehicle or a pure electric vehicle.

[0033] The present application provides a seat 100, which is described below. Figures 1 to 5The seat 100 comprises a seat body 1 and a locking assembly 2. The seat body 1 is rotatably connected with a vehicle body, and has a folding state and a reset state. The locking assembly 2 comprises first locking members 21 and second locking members 22. The seat body 1 is provided with at least two first locking members 21, and the vehicle body is provided with at least two second locking members 22. A reset tolerance L3 of the seat body 1 is greater than an installation difference of the locking assembly 2, so that all the first locking members 21 are buckled with the corresponding second locking members 22 in the reset state. The installation difference is the sum of a maximum height difference L1 between all the first locking members 21 in a vertical direction of the vehicle and a maximum height difference L2 between all the second locking members 22 in the vertical direction of the vehicle. The reset tolerance L3 is a movement threshold of the position of the seat body 1 in which the first locking members 21 are installed in the reset state in the vertical direction of the vehicle.

[0034] One end of the seat body 1 is rotatably connected with the vehicle body. The reset state refers to a state in which the other end of the seat body 1 is connected with the vehicle body. The folding state refers to a state in which the other end of the seat body 1 is disconnected with the vehicle body. When the seat body 1 rotates away from the reset state, it belongs to the folding state.

[0035] One end of the seat body 1 is rotatably connected with the vehicle body, so that the seat 100 can be switched between the folding state and the reset state.

[0036] It can be understood that when the seat 100 is folded and reset, there is a height difference between the first locking members 21 on the seat 100 and between the second locking members 22 on the vehicle body. After some of the first locking members 21 are buckled and connected with the corresponding second locking members 22, there is still a certain distance between the other first locking members 21 and the corresponding second locking members 22, which cannot be buckled and connected.

[0037] It can be understood that the maximum height difference L1 between all the first locking members 21 in the vertical direction of the vehicle refers to the relative distance between the first locking member 21 at the highest position and the first locking member 21 at the lowest position among the first locking members 21 arranged on the seat body 1.

[0038] It can be understood that the maximum height difference L3 between all the second locking members 22 in the vertical direction of the vehicle refers to the relative distance between the second locking member 22 at the highest position and the second locking member 22 at the lowest position among all the second locking members 22 arranged on the vehicle body.

[0039] It should be noted that when a plurality of first locking members 21 and second locking members 22 are arranged, due to errors in installation and manufacturing, the first locking members 21 and the second locking members 22 arranged are not on the same horizontal line, i.e., there is a height difference in the vertical direction of the vehicle.

[0040] The seat 100 provided in the application is rotatably arranged with the vehicle body through the seat body 1, and when the storage space of the vehicle needs to be increased, the seat body 1 can be rotated to be in a folding state, and the user's experience is good. After the seat 100 is folded and reset, because the reset tolerance L3 of the seat body 1 is greater than the installation difference of the locking assembly 2, when the first locking piece 21 and the second locking piece 22 are buckled, the movement threshold of the position where the seat body 1 is installed with the first locking piece 21 can correct the installation difference caused by the locking assembly 2, that is, correct the maximum height difference L1 between the first locking piece 21 and the maximum height difference L2 between all the second locking pieces 22 in the up-down direction of the vehicle, so that all the first locking pieces 21 on the seat body 1 can move in the up-down direction to be buckled with the corresponding second locking pieces 22 on the vehicle. In this way, in the reset state, through the locking of at least two first locking pieces 21 and at least two second locking pieces 22, the connection reliability of the seat 100 and the vehicle body and the riding safety can be improved.

[0041] The vehicle provided in the application has the advantages of the seat 100 described above, and also has the characteristics of good safety.

[0042] For example, in an embodiment, the first locking piece 21 can be a ground lock, and the second locking piece 22 can be a steel wire lock.

[0043] For example, in an embodiment, the first direction can be the front-rear direction of the vehicle, and the second direction can be the left-right direction of the vehicle.

[0044] It should be noted that up refers to the direction of the roof, and down is opposite to up. The first direction, the second direction and the up-down direction of the vehicle can be perpendicular to each other to form a three-dimensional rectangular coordinate system.

[0045] For example, in an embodiment, Figure 3 R1 in the above can be the first direction, R2 can be the second direction, and R3 can be the up-down direction of the vehicle.

[0046] For example, in an embodiment, please refer to Figure 1 and Figure 3 A plurality of first locking pieces 21 can be arranged on the seat body 1 in the second direction, and a plurality of second locking pieces 22 can be arranged on the vehicle body in the second direction.

[0047] For example, in an embodiment, the seat 100 can be an electric seat, and the movement, folding, resetting and pitch angle adjustment of the seat 100 are realized by electric driving.

[0048] In an embodiment, please refer to Figure 3 The seat body 1 is provided with a rigid weakening structure 1a, and the rigid weakening structure 1a increases the reset tolerance L3 by reducing the rigidity of the seat body 1.

[0049] Here, by setting the rigidity weakening structure 1a on the seat body 1, the rigidity of the seat body 1 can be weakened to improve the elastic deformation of the seat 100, and then the reset tolerance L3 of the seat body 1 can be increased, so that the first locking piece 21 can be better buckled with the second locking piece 22, and the situation that the first locking piece 21 and the second locking piece 22 cannot be buckled can be reduced.

[0050] In an embodiment, referring to Figure 3 , the seat body 1 includes a cushion body 11, side plates 12, a first pipe 13, a snorkel 14 and a second pipe 15, the first pipe 13 is connected to one end of the cushion body 11 along a first direction, the first locking piece 21 is arranged on the first pipe 13, the second pipe 15 and the snorkel 14 are connected to the other end of the cushion body 11 along the first direction, the two side plates 12 are arranged on both sides of the cushion body 11 along a second direction, the side plates 12 are fixedly connected with the first pipe 13 and the snorkel 14, and the rigidity weakening structure 1a is arranged between the second pipe 15 and the side plates 12, wherein the first direction, the second direction and the up-down direction of the vehicle intersect with each other.

[0051] For example, the first pipe 13 includes a pipe body 131 and a mounting sheet metal 132, the mounting sheet metal 132 can be welded on the pipe body 131, and the first locking piece 21 can be arranged on the mounting sheet metal 132. The second pipe 15 can be arranged at one end of the snorkel 14 away from the first pipe 13 along the first direction, both ends of the first pipe 13 along the second direction can be welded on the two side plates 12, the middle part can be welded on the cushion body 11, both ends of the snorkel 14 along the second direction can be welded on the two side plates 12, the middle part can be welded on the cushion body 11, and the middle part of the second pipe 15 can be welded on the cushion body 11. The rigidity weakening structure 1a is arranged between at least one of the two ends of the second pipe 15 along the second direction and the corresponding side plate 12.

[0052] Here, by connecting the first pipe 13 to one end of the cushion body 11 along the first direction, connecting the second pipe 15 and the snorkel 14 to the other end of the cushion body 11 along the first direction, and fixedly connecting the side plates 12 with the first pipe 13 and the snorkel 14, and arranging the rigidity weakening structure 1a between the second pipe 15 and the side plates 12, the seat body 1 can meet the relevant collision safety test while reducing the rigidity of the seat body 1 to some extent, and then the elastic deformation of the seat body 1 as a whole can be improved, so that the reset tolerance L3 of the seat body 1 can be increased, and when the first locking piece 21 is buckled with the second locking piece 22, there is more allowance to reduce the height difference between them, and the situation that the first locking piece 21 and the second locking piece 22 cannot be buckled can be reduced.

[0053] In an embodiment, referring to Figure 3The second tube 15 is spaced apart from the side plate 12 to form the rigid weakening structure la. That is, the second tube 15 can be disconnected from the side plate 12, so that the manufacturing cost and manufacturing difficulty of the seat 100 can be reduced to some extent while meeting the relevant collision safety test and increasing the reset tolerance L3.

[0054] For example, in an embodiment, slots or holes are formed on the seat cushion body 11, the side plate 12, the first tube 13, and the second tube 15, which can also be regarded as the rigid weakening structure la.

[0055] In an embodiment, referring to Figures 2 to 4 The seat body 1 is formed with a first mounting hole 132a, the seat 100 includes a fastener 3, the fastener 3 is connected with the first locking member 21 by penetrating the first mounting hole 132a, and the fastener 3 is clearance fitted with the first mounting hole 132a.

[0056] For example, the mounting sheet metal 132 can be formed with the first mounting hole 132a, the first locking member 21 is provided with a welding nut 21a, the first mounting hole 132a can be a light hole, the fastener 3 can be a bolt or a screw, etc., and the fastener 3 can be threadedly connected with the welding nut 21a of the first locking member 21 after penetrating the light hole. The number of fasteners 3 and mounting sheet metals 132 can be two or more to match the number of first locking members 21. For the clearance fit between the fastener 3 and the first mounting hole 132a, one fastener 3 can be clearance fitted with the corresponding first mounting hole 132a, or all fasteners 3 can be clearance fitted with the corresponding first mounting holes 132a.

[0057] Here, the clearance fit between the fastener 3 and the first mounting hole 132a allows the first locking member 21 connected with the seat body 1 and the fastener 3 to have a movable allowance, so that the reset tolerance L3 of the seat body 1 can be increased. When the seat 100 is folded and reset, the clearance between the first mounting hole 132a and the fastener 3 can allow the first locking member 21 to be better buckled with the second locking member 22, reducing the situation that the first locking member 21 cannot be buckled with the second locking member 22.

[0058] In an embodiment, the clearance between the fastener 3 and the first mounting hole 132a is between 0.5 mm and 2 mm.

[0059] Exemplarily, the gap refers to a single-side gap that the fastener 3 is located in the first mounting hole 132a. The gap can be 2 mm, 1.9 mm, 1.8 mm, 1.7 mm, 1.6 mm, 1.5 mm, 1.4 mm, 1.3 mm, 1.2 mm, 1.1 mm, 1 mm, 0.9 mm, 0.8 mm, 0.7 mm, 0.6 mm, or 0.5 mm, etc. Here, by the appropriate gap, the reset tolerance L3 of the seat body 1 can be increased without affecting the installation stability of the first locking piece 21.

[0060] Exemplarily, in an embodiment, the hole diameter of the first mounting hole 132a is between 10 mm and 14 mm, and the diameter of the part where the fastener 3 is located in the first mounting hole 132a is about 10 mm.

[0061] Exemplarily, in an embodiment, a protective plate 4 is arranged between the first locking piece 21 and the welding nut 21a to protect the first locking piece 21 to a certain extent.

[0062] Exemplarily, in an embodiment, referring to Figure 2 and Figure 3 , the seat body 1 comprises a backrest framework 5 and a rotating shaft 6, and the backrest framework 5 is rotatably connected to the cushion body 11 through the rotating shaft 6. Here, the backrest framework 5 can be laid down to cooperate with the folding of the seat 100, so that the storage space of the vehicle can be further increased.

[0063] In an embodiment, referring to Figure 2 and Figure 5 , the seat body 1 is provided with a first rotating arm 1b at one end relative to the first locking piece 21, the first rotating arm 1b is fixedly connected with the second pipe 15, the first rotating arm 1b is formed with a second mounting hole 1c, the vehicle body is provided with a second rotating arm A, the seat 100 comprises a rotating shaft 7, the rotating shaft 7 is rotatably connected with the second mounting hole 1c and the second rotating arm A through the second mounting hole 1c, so as to switch the seat body 1 between the folding state and the reset state, and the rotating shaft 7 and the second mounting hole 1c are in clearance fit.

[0064] Exemplarily, the first rotating arm 1b can be welded with the second pipe 15, the second mounting hole 1c can be a light hole, the corresponding part of the vehicle body is welded with the second rotating arm A, the second rotating arm A can be provided with a rotating hole, and the rotating shaft 7 is rotatably connected with the second mounting hole 1c and the rotating hole to realize the folding and folding reset of the seat body 1.

[0065] Here, by the clearance fit between the shaft 7 and the second mounting hole 1c, a movable allowance is provided between the seat 100 and the vehicle body, i.e. the reset tolerance of the seat body 1 is increased, so that when the seat 100 is folded and reset, the height difference between the first locking member 21 and the second locking member 22 can be reduced by the clearance between the second mounting hole 1c and the shaft 7, reducing the situation that the first locking member 21 and the second locking member 22 cannot be buckled.

[0066] In an embodiment, referring to Figure 5 , the number of the first rotating arms 1b and the second rotating arms A can each be two, the two first rotating arms 1b are arranged at intervals on the seat body 1, and the two second rotating arms A are arranged correspondingly on the vehicle body, the shaft 7 is arranged through the second mounting hole 1c of the two first rotating arms 1b, and the two ends thereof are rotatably connected with one second rotating arm A respectively.

[0067] For example, the two first rotating arms 1b are located between the two second rotating arms A along the second direction, the shaft 7 is arranged through the second mounting hole 1c of the two first rotating arms 1b, and the two ends thereof are rotatably connected with the second rotating arms A respectively. For the clearance fit between the shaft 7 and the second mounting hole 1c, the shaft 7 can be clearance fitted with the second mounting hole 1c of one first rotating arm 1b, or the shaft 7 can be clearance fitted with the second mounting hole 1c of the two first rotating arms 1b.

[0068] Here, while increasing the reset tolerance L3 of the seat 100, the stability of the rotation of the seat 100 can also be improved, without affecting the folding and folding reset actions of the seat 100.

[0069] In an embodiment, the clearance between the shaft 7 and the second mounting hole 1c is between 0.05mm and 0.125mm.

[0070] For example, the clearance here is a single-side clearance when the shaft 7 is located in the second mounting hole 1c. The clearance can be 0.125mm, 0.12mm, 0.1mm, 0.08mm, 0.06mm or 0.05mm, etc. Here, by setting the clearance with a proper size, the reset tolerance L3 can be increased, and the stability of the rotation of the seat 100 can also be improved.

[0071] For example, in an embodiment, referring to Figure 6The position of the first mounting hole 132a and the gap between the rigid weakening structure 1a, the first mounting hole 132a and the fastener 3 and the gap between the second mounting hole 1c and the rotating shaft 7 can be obtained by the tool 200. The tool 200 comprises a mounting platform 201 and first and second supporting arms 202 and 203 arranged on the mounting platform 201. The seat body 1 is rotatably connected to the first supporting arm 202 and the second locking member 22 is arranged on the second supporting arm 203. In the test, the first locking member 21 is first buckled with the second locking member 22 in the reset state, then the seat body 1 is rotated to determine the position of the first mounting hole 132a on the seat body 1 and the size of the first mounting hole 132a, and then the fastener 3 is passed through the first mounting hole 132a and the welded nut 21a on the first locking member 21. In this way, the position and size of the first mounting hole 132a obtained by the tool 200 after the test can reduce the height difference of the first locking member 21 by at least 2 mm.

[0072] The above merely provides the preferred embodiments of the present application, but not for limiting the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall fall into the protection scope of the present application.

Claims

1. A seat, characterized in that, The utility model relates to a seat (100) of a vehicle, including: A seat body (1) is rotatably connected with a vehicle body, and the seat body (1) has a folding state and a reset state; A locking assembly (2) includes a first locking piece (21) and a second locking piece (22), the seat body (1) is provided with at least two first locking pieces (21), the vehicle body is provided with at least two second locking pieces (22), and the reset tolerance of the seat body (1) is greater than the installation difference of the locking assembly (2) to make all the first locking pieces (21) be buckled with corresponding second locking pieces (22) in the reset state, wherein the installation difference is the sum of the maximum height difference between all the first locking pieces (21) in the up-down direction of the vehicle and the maximum height difference between all the second locking pieces (22) in the up-down direction of the vehicle, and the reset tolerance is the movement threshold of the position of the seat body (1) for installing the first locking piece in the up-down direction of the vehicle in the reset state.

2. The seat of claim 1, wherein The seat body (1) is provided with a rigidity weakening structure (1a) for increasing the reset tolerance by reducing the rigidity of the seat body (1).

3. The seat of claim 2, wherein, The seat body (1) includes a cushion body (11), side plates (12), a first pipe (13), a snorkel (14) and a second pipe (15), the first pipe (13) is connected at one end of the cushion body (11) in a first direction, the first locking piece (21) is arranged on the first pipe (13), the second pipe (15) and the snorkel (14) are connected at the other end of the cushion body (11) in the first direction, two side plates (12) are arranged on both sides of the cushion body (11) in a second direction, the side plates (12) are fixedly connected with the first pipe (13) and the snorkel (14), and the rigidity weakening structure (1a) is arranged between the second pipe (15) and the side plates (12), wherein the first direction, the second direction and the up-down direction of the vehicle intersect with each other.

4. The seat of claim 3, wherein, The second pipe (15) is arranged in a spaced mode with the side plates (12) to form the rigidity weakening structure (1a).

5. The seat of claim 3, wherein, One end of the seat body (1) relative to the first locking piece (21) is provided with a first rotating arm (1b), the first rotating arm (1b) is fixedly connected with the second pipe (15), the first rotating arm (1b) is formed with a second mounting hole (1c), the vehicle body is provided with a second rotating arm (A), the seat (100) includes a rotating shaft (7), the rotating shaft (7) is arranged in the second mounting hole (1c) and rotatably connected with the second rotating arm (A), so that the seat body (1) is switched between the folding state and the reset state, and the rotating shaft (7) and the second mounting hole (1c) are in clearance fit.

6. The seat of claim 5, wherein, The number of the first rotating arms (1b) and the second rotating arms (A) can each be two, the two first rotating arms (1b) are arranged at intervals on the seat body (1), the two second rotating arms (A) are arranged correspondingly on the vehicle body, the rotating shaft (7) is arranged through the second mounting hole (1c) of the two first rotating arms (1b), and the two ends of the rotating shaft (7) are rotatably connected with one second rotating arm (A) respectively.

7. The seat of claim 5 or 6, wherein, The gap between the rotating shaft (7) and the second mounting hole (1c) is between 0.05 mm and 0.125 mm.

8. The seat of any one of claims 1 to 6, wherein, The seat body (1) is formed with a first mounting hole, and the seat (100) further comprises a fastener (3), the fastener (3) is arranged through the first mounting hole and connected with the first locking piece (21), and the fastener (3) is clearance-fitted with the first mounting hole.

9. The seat of claim 8, wherein, The gap between the fastener (3) and the first mounting hole is between 0.5 mm and 2 mm.

10. A vehicle characterized by comprising: The seat (100) comprises any one of claims 1 to 9. The seat (100) comprises any one of claims 1 to 9.

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