Seat assembly, limiting mechanism and support assembly

Abstract

This application provides a seat assembly, a limiting mechanism, and a support assembly. The seat assembly includes: a seat; a first connecting portion connected to the seat; and a support assembly including a support device, a second connecting portion, and a limiting mechanism. The second connecting portion is connected to the support device and detachably connected to the first connecting portion to achieve a detachable arrangement of the seat on the support device. The limiting mechanism is disposed on the support device and includes a limiting member and a linkage mechanism. The limiting member is rotatably disposed, and the linkage mechanism is drivenly connected to the limiting member. During the process of the first connecting portion connecting to the second connecting portion, under the downward pressure of the first connecting portion, the limiting member is driven to rotate from its initial position and approach the first connecting portion along a first direction. This ensures that when the first connecting portion and the second connecting portion are fully connected, the limiting member contacts the first connecting portion, stopping the first connecting portion and preventing it from disengaging. This improves the safety of the seat during use.

Description

Technical Field

[0001] This application relates to the field of seating technology, and in particular to a seating assembly, a limiting mechanism, and a support assembly. Background Technology

[0002] Some seats are detachably mounted on the support device to facilitate seat removal and assembly, enabling quick-release functionality.

[0003] To achieve a detachable connection between the seat and the support device, the seat is typically detachably connected to a second connecting part on the support device via a first connecting part. Furthermore, to prevent accidental detachment of the first and second connecting parts, the support device is usually equipped with a limiting member to restrict the first connecting part.

[0004] However, in related technologies, the limiting member used to limit the first connecting part is fixedly set, and the limiting part relies entirely on the contact and cooperation between the limiting member and the first connecting part in a fixed position to perform the limiting. In this case, the realization of the limiting function requires high precision in the cooperation between the first connecting part and the limiting member. Due to processing errors and other reasons, the first connecting part and the limiting member may not be able to make effective contact and cooperation, which affects the reliability of the limiting and thus affects the safety of the seat.

[0005] The above statements are for the purpose of providing background information in relation to this application only, and do not necessarily constitute prior art. Summary of the Invention

[0006] One of the technical problems this application aims to solve is: improving the safety of seat use.

[0007] To address the aforementioned technical problems, this application provides a seat assembly, comprising:

[0008] Seats;

[0009] The first connecting part is connected to the seat; and

[0010] The support assembly includes a support device, a second connecting part, and a limiting mechanism. The support device is disposed under the seat. The second connecting part is connected to the support device and detachably connected to the first connecting part to enable the seat to be detachably mounted on the support device. The limiting mechanism is disposed on the support device and includes a limiting member and a linkage mechanism. The limiting member is rotatably disposed. The linkage mechanism is drivenly connected to the limiting member. During the process of the first connecting part connecting to the second connecting part, under the downward pressure of the first connecting part, the limiting member is driven to rotate from its initial position and approach the first connecting part in a first direction. This allows the limiting member to contact the first connecting part when the first connecting part and the second connecting part are fully connected, thereby stopping the first connecting part and preventing it from disengaging from the second connecting part.

[0011] In some embodiments, the linkage mechanism includes a linkage frame and a linkage member. The linkage frame is pressed down by the first connecting part during the process of the first connecting part connecting to the second connecting part and rotates in a first direction. The linkage member is disposed on the linkage frame and has a driving connection with the limiting member, so that the linkage frame can drive the limiting member to rotate from the initial position in the first direction during the process of the linkage frame being pressed down by the first connecting part.

[0012] In some embodiments, the limiting member in the initial position is located on the movement path from the first connecting part to the second connecting part, and the linkage frame and the limiting member can rotate relative to each other, so that during the process of the first connecting part connecting to the second connecting part, the limiting member can be pressed down by the first connecting part before the linkage frame is pressed down by the first connecting part, and rotate relative to the linkage frame in the first direction.

[0013] In some embodiments, the linkage member and the limiting member are further in a drive disconnected state. The linkage member and the limiting member are initially in a drive disconnected state, and the linkage member switches from the drive disconnected state to the drive connected state only after the linkage frame is pressed down by the first connecting part by a preset distance. This allows the linkage frame to rotate relative to the limiting member along a first direction during the pressing process by the first connecting part, and then drives the limiting member to rotate from the initial position along the first direction. And / or, the limiting mechanism further includes a reset member, which applies a force to the limiting member to return the limiting member to its initial position.

[0014] In some embodiments, the limiting member is provided with an arc-shaped groove, and the linkage member is inserted into the arc-shaped groove and slides in cooperation with the arc-shaped groove, so that the linkage member and the limiting member have a drive connection state and a drive disconnect state. When the linkage member and the limiting member are in the drive disconnect state, the linkage member and the lower end of the arc-shaped groove are spaced apart, and after the linkage frame is pressed down by the first connecting part by a preset distance, the linkage member moves to the lower end of the arc-shaped groove and contacts the lower end of the arc-shaped groove, so that the linkage member and the limiting member switch from the initial drive disconnect state to the drive connection state.

[0015] In some embodiments, the linkage mechanism further includes an elastic element that applies an elastic force to the linkage frame to cause the linkage frame to rotate in a second direction opposite to the first direction, so that the linkage frame can return to its position before being pressed down by rotating in the second direction after the first connecting part releases the downward pressure on the linkage frame; and / or, the linkage frame includes a frame body and a flange, the linkage element is disposed on the frame body, the flange is connected to the top of the frame body and folded relative to the frame body, and the first connecting part presses down the linkage frame by pressing down the flange during the process of connecting to the second connecting part.

[0016] In some embodiments, the linkage frame stops at its position before being pressed down by the support device during rotation in the second direction.

[0017] In some embodiments, the support device is provided with a through hole, and when the linkage frame is in the position before being pressed down, the part of the linkage frame that is in contact with the first connecting part is exposed by the through hole so that it is pressed down by the first connecting part passing through the through hole during the process of the first connecting part being connected to the second connecting part.

[0018] In some embodiments, the limiting member has contacted the first connecting portion before the first connecting portion and the second connecting portion are connected in place; and / or, the first connecting portion includes a locking hook that hooks onto the second connecting portion to achieve a detachable connection between the first connecting portion and the second connecting portion.

[0019] In some embodiments, the support assembly further includes a constraint groove, in which, when in the initial position, the limiting member passes through the constraint groove and abuts against the groove wall of the constraint groove away from the second connection portion, so as to limit the rotation of the limiting member from the initial position in a second direction opposite to the first direction by the constraint groove.

[0020] In some embodiments, the constraint groove is disposed on the support device, or the support assembly further includes a constraint member disposed on the support device, and the constraint groove is disposed on the constraint member; and / or, the limiting mechanism further includes a stop member connected to the support device, and in the event that the constraint groove is damaged and the limiting member can no longer be restricted from rotating from the initial position along the second direction, the stop member is stopped by the limiting member rotating by a preset angle along the second direction from the groove wall of the constraint groove away from the second connection portion.

[0021] In some embodiments, the support device includes a vehicle floor, a first connecting portion disposed on the seat, and a second connecting portion and a limiting mechanism disposed on the vehicle floor; or, the support device includes a vehicle floor, and the seat assembly further includes a slide rail, the slide rail including a first rail and a second rail slidably connected, the first rail being connected to the vehicle floor, the seat being connected to the second rail, the first connecting portion being disposed on the first rail, and the second connecting portion and the limiting mechanism being disposed on the vehicle floor; or, the support device includes a support member for connecting to the slide rail disposed on the vehicle floor, the first connecting portion being disposed on the seat, and the second connecting portion and the limiting mechanism being disposed on the support member; or, the support device includes a slide rail and a support member, the slide rail including a first rail and a second rail slidably connected, the first rail being connected to the vehicle floor, the seat being connected to the second rail via the support member, the first connecting portion being disposed on the support member, and the second connecting portion and the limiting mechanism being disposed on the second rail.

[0022] In addition, this application also provides a limiting mechanism or support component for a seat assembly according to any embodiment.

[0023] The limiting component and linkage mechanism can rotate and limit the first connecting part, which can effectively prevent the first connecting part and the limiting component from failing to make effective contact and cooperation due to processing errors or other reasons. Therefore, it can effectively improve the limiting reliability of the first connecting part and enhance the safety of the seat.

[0024] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0026] Figure 1 This is a perspective view of the seat assembly in an embodiment of this application.

[0027] Figure 2 Show Figure 1 The relationship between the middle limit mechanism and the first connecting part.

[0028] Figure 3 This is a schematic diagram of the structure of the first connecting part in an embodiment of this application.

[0029] Figure 4 This is a schematic diagram of the structure of the second connecting part in an embodiment of this application.

[0030] Figure 5 This is a three-dimensional schematic diagram of the combined structure of the limiting mechanism and the support member in the embodiments of this application.

[0031] Figure 6 for Figure 5 A three-dimensional diagram from another perspective, omitting the reset component and a bracket.

[0032] Figure 7 for Figure 5 Top view.

[0033] Figure 8 for Figure 7 CC section view.

[0034] Figure 9 for Figure 5 An explosion diagram.

[0035] Figure 10 This is a schematic diagram of the seat assembly in the state before the first connecting part is pressed down by the limiting member.

[0036] Figure 11 for Figure 10 A partial schematic diagram of the limiting mechanism.

[0037] Figure 12 for Figure 11 A schematic diagram showing the fit between the first connecting part, the limiting part, the constraint part, the linkage frame, the linkage part, and the stop part.

[0038] Figure 13 This is a schematic diagram of the seat assembly when the first connecting part is not pressed down by the limiting member.

[0039] Figure 14 for Figure 13 A partial schematic diagram of the limiting mechanism.

[0040] Figure 15 for Figure 14 A schematic diagram showing the fit between the first connecting part, the limiting part, the constraint part, the linkage frame, the linkage part, and the stop part.

[0041] Figure 16 This is a schematic diagram of the seat assembly in the state when the first connecting part has just passed the downward limiting member.

[0042] Figure 17 for Figure 16 A partial schematic diagram of the limiting mechanism.

[0043] Figure 18 for Figure 17 A schematic diagram showing the fit between the first connecting part, the limiting part, the constraint part, the linkage frame, the linkage part, and the stop part.

[0044] Figure 19 This is a schematic diagram showing the state of the seat assembly when the linkage is pressed down at the first connecting part, causing the linkage to reach the lower end of the arc-shaped groove.

[0045] Figure 20 for Figure 19 A partial schematic diagram of the limiting mechanism.

[0046] Figure 21 for Figure 20 A schematic diagram showing the fit between the first connecting part, the limiting part, the constraint part, the linkage frame, the linkage part, and the stop part.

[0047] Figure 22 This is a schematic diagram showing the state of the seat assembly when the linkage reaches the lower end of the arc-shaped groove at the first connecting part and continues to press down on the linkage frame.

[0048] Figure 23 for Figure 22 A partial schematic diagram of the limiting mechanism.

[0049] Figure 24 for Figure 23 A schematic diagram showing the fit between the first connecting part, the limiting part, the constraint part, the linkage frame, the linkage part, and the stop part.

[0050] Figure 25This is a schematic diagram showing the state of the seat assembly when the first connecting part is in place.

[0051] Figure 26 for Figure 25 A partial schematic diagram of the limiting mechanism.

[0052] Figure 27 for Figure 26 A schematic diagram showing the fit between the first connecting part, the limiting part, the constraint part, the linkage frame, the linkage part, and the stop part.

[0053] Figure 28 This is a schematic diagram of the process of the first connecting part and the second connecting part separating.

[0054] Explanation of reference numerals in the attached figures:

[0055] 10. Seat components;

[0056] 1. Seat; 11. Frame;

[0057] 2. Support device; 21. Support component; 22. Slide rail; 23. First rail; 24. Second rail; 25. Constraint component; 26. Constraint groove; 27. Through hole;

[0058] 3. Support assembly; 31. First connecting part; 32. Second connecting part; 33. Locking hook; 34. Steel wire; 35. Hook groove; 36. Third connecting part; 37. Fourth connecting part;

[0059] 4. Limiting mechanism;

[0060] 5. Limiting component; 51. Arc groove; 52. Shaft hole; 53. Connecting hole; 54. First shaft; 55. Reset component; 56. Spring;

[0061] 6. Linkage mechanism; 61. Linkage frame; 62. Linkage component; 63. Elastic component; 64. Frame body; 65. Flanged edge;

[0062] 7. Stop; 71. Second shaft;

[0063] 8. Support; 81. Bracket. Detailed Implementation

[0064] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use.

[0065] In the description of this application, the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application.

[0066] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0067] In related technologies, the limiting component used to stop and limit the first connecting part used to achieve the detachable connection between the seat and the support device is usually a fixed limiting block with a limiting groove. After the first connecting part is connected to the second connecting part on the support device (corresponding to the seat being installed), it is located in the limiting groove of the limiting block and contacts and engages with the limiting block, thus being stopped and limited by the limiting block. In this case, if there are manufacturing errors in the limiting component or the first connecting part, and it does not conform to the design, then after the first connecting part and the second connecting part are connected, the first connecting part may not make effective contact with the limiting component, but there may be a gap. This means that the first connecting part is not reliably limited, which can easily lead to unexpected movement, especially backward movement, causing the seat to slide rapidly and causing safety problems such as passenger injury.

[0068] It is evident that the limiting component used to stop and limit the first connecting part for detachable connection between the seat and the support device in the relevant technology affects the safety of seat use.

[0069] In view of the above situation, in order to improve the safety of seat use, this application provides a seat assembly, a support assembly, and a limiting mechanism.

[0070] Figures 1-28 The seat assembly, support assembly, and limiting mechanism of this application are illustrated by way of example.

[0071] See Figures 1-28In this application, the seat assembly 10 includes a seat 1, a first connecting portion 31, and a support assembly 3. The first connecting portion 31 is connected to the seat 1. The support assembly 3 includes a support device 2, a second connecting portion 32, and a limiting mechanism 4. The support device 2 is disposed below the seat 1. The second connecting portion 32 is connected to the support device 2 and is detachably connected to the first connecting portion 31 to achieve a detachable mounting of the seat 1 on the support device 2. The limiting mechanism 4 is disposed on the support device 2 and includes a limiting member 5 and a linkage mechanism 6. The limiting member 5 is rotatably disposed. The linkage mechanism 6 is driven to connect with the limiting member 5. During the process of connecting the first connecting part 31 to the second connecting part 32, under the downward pressure of the first connecting part 31, the limiting member 5 is driven to move from the initial position to the first connecting part 31 by rotating along the first direction. When the first connecting part 31 and the second connecting part 32 are connected in place (corresponding to the seat 1 being installed in place), the limiting member 5 contacts the first connecting part 31 and stops the first connecting part 31, preventing the first connecting part 31 from separating from the second connecting part 32.

[0072] In the above solution, the limiting member 5, which stops and limits the first connecting part 31 used to achieve the detachable connection between the seat 1 and the support device 2, is no longer fixedly set, but rotatably set. During the process of connecting the first connecting part 31 to the second connecting part 32 set on the support device 2, under the action of the linkage mechanism 6 pressed down by the first connecting part 31, it rotates closer to and stops the first connecting part 31, thereby achieving the stopping and limiting function of the first connecting part 31. In this case, the stopping position of the limiting member 5 against the first connecting part 31 is no longer fixed, but can be adaptively adjusted according to the actual connection position of the first connecting part 31. The limiting member 5 no longer achieves the stopping function of the second connecting part 32 by contacting and engaging with the first connecting part 31 in a fixed position. The stopping and limiting function of the first connecting part 31 is achieved by rotating the first connecting part 31 to make contact with it based on its actual position when it is connected. This is a rotational following limiting process, which can reduce or even eliminate the influence of machining errors. Even if there are machining errors between the first connecting part 31 and the limiting member 5, the limiting member 5 can still make effective contact with the first connecting part 31 through rotational following. This prevents the first connecting part 31 from accidentally shifting due to failure to make effective contact with the limiting member 5, which could lead to seat slippage, passenger injury, and other safety problems. Therefore, it can effectively improve the reliability of the limiting and improve the safety of the seat 1.

[0073] It can be seen that by setting the limiting member 5 and the linkage mechanism 6 to limit the rotation of the first connecting part 31, it can effectively prevent the first connecting part 31 from failing to make effective contact with the limiting member 5 due to processing errors or other reasons. Therefore, it can effectively improve the limiting reliability of the first connecting part 31 and enhance the safety of the seat 1.

[0074] Moreover, the limiting member 5 rotates and follows under the drive of the linkage mechanism 6 pressed down by the first connecting part 31, rather than under the drive of a power mechanism such as a motor. Therefore, the rotational following effect is better, more reliable limiting can be achieved, and the structure is simpler, the cost is lower, the size is smaller, and the space occupied is less.

[0075] Furthermore, the linkage mechanism 6 is pressed down by the first connecting part 31. After the first connecting part 31 and the second connecting part 32 are connected in place, the linkage mechanism 6 and the limiting member 5 contact different parts of the first connecting part 31, and a triangle can be formed between the three (see...). Figure 2 The first connecting part 31 is locked to prevent it from moving accidentally, thus achieving reliable limiting.

[0076] It is evident that by setting the limiting component 5 and the linkage mechanism 6 to limit the rotation of the first connecting part 31, the reliability of the limiting can be effectively improved and the safety of the seat can be enhanced based on a simpler structure and lower cost.

[0077] See Figures 2-28 In some embodiments, the linkage mechanism 6 includes a linkage frame 61 and a linkage member 62. The linkage frame 61 is pressed down by the first connecting part 31 during the process of connecting the first connecting part 31 to the second connecting part 32, and rotates in a first direction. The linkage member 62 is disposed on the linkage frame 61 and has a driving connection with the limiting member 5, so that when the linkage frame 61 is pressed down by the first connecting part 31, the limiting member 5 can be driven to rotate from its initial position in the first direction via the linkage member 62. In this case, the linkage frame 61 is the component of the linkage mechanism 6 pressed down by the first connecting part 31. It is rotatably disposed relative to the support device 2 and is driven to the limiting member 5 via the linkage member 62. When the linkage member 62 and the limiting member 5 are in a driving connection state, the linkage frame 61 is pressed down by the first connecting part 31 and rotates in the first direction, thereby driving the limiting member 5 to rotate in the first direction via the linkage member 62, achieving rotational following and limiting.

[0078] Further, see Figures 2-28In some embodiments, the limiting member 5 in the initial position is located on the movement path from the first connecting part 31 to the second connecting part 32, and the linkage frame 61 and the limiting member 5 can rotate relative to each other, so that during the process of the first connecting part 31 connecting to the second connecting part 32, the limiting member 5 can be pressed down by the first connecting part 31 before the linkage frame 61 is pressed down by the first connecting part 31, and rotate relative to the linkage frame 61 in the first direction.

[0079] Based on the above settings, the limiting member 5 is initially positioned on the movement path from the first connecting part 31 to the second connecting part 32. This makes the limiting member 5 relatively close to the final stop position of the first connecting part 31 (which can be called the stop position). From the initial position to the stop position, only a small angle needs to be rotated, which makes it easy for the limiting member 5 to rotate smoothly into position during the connection of the first connecting part 31 and stop the first connecting part 31. This prevents the limiting member 5 from not catching up with the first connecting part 31 when the first connecting part 31 is connected due to the initial position being too far from the stop position, thus affecting the smooth realization of the rotation following limiting function.

[0080] When the limiting member 5 is initially on the movement path from the first connecting part 31 to the second connecting part 32, the limiting member 5 will be pressed down by the first connecting part 31 during the process of connecting the first connecting part 31 to the second connecting part 32, causing it to rotate in the first direction. In this case, the limiting member 5 and the linkage frame 61 are set to be rotatable relative to each other, so that the limiting member 5 can be pressed down by the first connecting part 31 before the linkage frame 61 is pressed down by the first connecting part 31, and rotate relative to the linkage frame 61 in the first direction to avoid the first connecting part 31, so that the first connecting part 31 can pass smoothly through the limiting member 5 and move toward the second connecting part 32.

[0081] It can be seen that by setting the limiting member 5 to be initially located on the movement path from the first connecting part 31 to the second connecting part 32, and setting the linkage frame 61 and the limiting member 5 to be rotatable relative to each other, the rotation angle of the limiting member 5 from the initial position to the stop position can be reduced, which facilitates the smooth realization of the rotation following limiting function. At the same time, the limiting member 5 can rotate and avoid the first connecting part 31 as the first connecting part 31 moves toward the second connecting part 32, which facilitates the first connecting part 31 to pass smoothly through the limiting member 5 and connect with the second connecting part 32. Thus, the rotation following limiting function can be smoothly realized without excessively affecting the smoothness of the connection between the first connecting part 31 and the second connecting part 32.

[0082] When the limiting member 5 is initially located on the movement path connecting the first connecting part 31 to the second connecting part 32, and the linkage frame 61 and the limiting member 5 can rotate relative to each other, in order to facilitate the limiting member 5 smoothly returning to its initial position after the first connecting part 31 passes the limiting member 5 and the downward pressure on the limiting member 5 is released, see [reference needed]. Figure 9 In some embodiments, the limiting mechanism 4 further includes a reset member 55, which applies a force to the limiting member 5 to return it to its initial position. Thus, after the first connecting portion 31 passes the limiting member 5 and releases its downward pressure on the limiting member 5, the limiting member 5 can automatically return to its initial position under the action of the reset member 55, without requiring additional manual operation or a separate power mechanism, making it simple and efficient.

[0083] Additionally, when the limiting member 5 is initially located on the movement path connecting the first connecting part 31 to the second connecting part 32, and the linkage frame 61 and the limiting member 5 can rotate relative to each other, see [reference needed]. Figures 2-28 In some implementations, the linkage 62 and the limiting member 5 are also in a drive disconnected state. The linkage 62 and the limiting member 5 are initially in a drive disconnected state, and only after the linkage frame 61 is pressed down by the first connecting part 31 by a preset distance will it switch from the drive disconnected state to the drive connected state, so that the linkage frame 61 can rotate relative to the limiting member 5 in the first direction during the process of being pressed down by the first connecting part 31, and then drive the limiting member 5 to rotate from the initial position in the first direction.

[0084] Based on the above configuration, the linkage 62 and the limiting member 5 are not always in a drive-connected state. Instead, they are initially in a drive-disconnected state and then switch to a drive-connected state. This switch from drive-disconnected to drive-connected is achieved when the linkage frame 61, under the pressure of the first connecting part 31, causes the linkage 62 to rotate a preset distance relative to the limiting member 5 in the first direction. This means that after the linkage frame 61 is pressed down by the first connecting part 31, it does not immediately cause the limiting member 5 to rotate in the first direction. Instead, it first rotates a preset distance relative to the limiting member 5 in the first direction, thus causing the linkage 62 to rotate. 2. The movement proceeds to a position where it forms a driving connection with the limiting member 5 before it begins to rotate the limiting member 5 in the second direction. This allows time for the limiting member 5 to return to its initial position after being pressed down by the first connecting part 31. This ensures that when the linkage frame 61 rotates the limiting member 5 in the first direction, the limiting member 5 has already returned to its initial position after being pressed down by the first connecting part 31. This prevents the limiting member 5 from not returning to its initial position after being pressed down by the first connecting part 31 when the linkage frame 61 rotates the limiting member 5 in the first direction, which would affect the smooth implementation of the rotation following limiting function.

[0085] It can be seen that by setting the linkage 62 and the limiting component 5 to not always be in a drive-connected state, but initially in a drive-disconnected state and then switching to a drive-connected state, the smooth implementation of the rotation-following limiting function can be further facilitated.

[0086] To facilitate the switching of the driving state between the linkage 62 and the limiter 5, see [link / reference]. Figures 2-28 In some embodiments, the limiting member 5 is provided with an arc-shaped groove 51, and the linkage member 62 is inserted into the arc-shaped groove 51 and slides with the arc-shaped groove 51, so that the linkage member 62 and the limiting member 5 have a driving connection state and a driving disconnect state. When the linkage member 62 and the limiting member 5 are in the driving disconnect state, the lower end of the linkage member 62 and the arc-shaped groove 51 are spaced apart. After the linkage frame 61 is pressed down by the first connecting part 31 for a certain distance, the linkage member 62 moves to the lower end of the arc-shaped groove 51 and contacts the lower end of the arc-shaped groove 51, so that the linkage member 62 and the limiting member 5 switch from the initial driving disconnect state to the driving connection state.

[0087] Based on the above configuration, the switching of the driving state between the linkage 62 and the limiting member 5 is achieved by the cooperation of the linkage 62 and the arc-shaped groove 51 on the limiting member 5. Initially, the linkage 62 (i.e., before the linkage frame 61 is pressed down by the first connecting part 31) is located a distance above the lower end of the arc-shaped groove 51 and does not contact the lower end of the arc-shaped groove 51. In this case, the linkage 62 and the limiting member 5 are in a driving disconnected state, and the linkage 62 cannot transmit the rotation of the linkage frame 61 in the first direction to the limiting member 5. Therefore, the linkage frame 61 rotates in the first direction under the pressing action of the first connecting part 31, but does not drive the limiting member 5 to rotate in the first direction. Instead, it rotates relative to the limiting member 5 in the first direction. The linkage frame 61 rotates relative to the limiting member 5 in the first direction, which can... The linkage 62 slides in the arc-shaped groove 51, gradually approaching the lower end of the arc-shaped groove 51 until the linkage frame 61 rotates a preset distance relative to the limiting member 5 in the first direction. Then, the linkage 62 slides to the lower end of the arc-shaped groove 51 and contacts the lower end of the arc-shaped groove 51, so that the linkage 62 and the arc-shaped groove 51 switch from a drive disconnected state to a drive connected state. In the corresponding state, the linkage 62 can transmit the rotation of the linkage frame 61 in the first direction to the limiting member 5. Then, the linkage frame 61 continues to be pressed down by the first connecting part 31, and the linkage 62 can drive the limiting member 5 to rotate together in the first direction, so that the limiting member 5 can rotate and approach the first connecting part 31 until it catches up with the first connecting part 31 and stops and limits the first connecting part 31.

[0088] As can be seen, by setting an arc-shaped groove 51 on the limiting member 5 that slides with the linkage member 62, and setting the linkage member 62 and the arc-shaped groove 51 such that the linkage member 62 can move from above the lower end of the arc-shaped groove 51 to the lower end of the arc-shaped groove 51 during the process of the linkage frame 61 being pressed down by the first connecting part 31, the linkage member 62 and the limiting member 5 can switch from a drive disconnected state to a drive connected state as the linkage frame 61 rotates in the first direction under the action of the first connecting part 31, thus conveniently realizing the switching of the drive state between the linkage member 62 and the limiting member 5.

[0089] However, it should be noted that the switching of the driving state between the linkage 62 and the limiting member 5 is not limited to the cooperation between the linkage 62 and the arc-shaped groove 51, but can also be achieved in other ways. For example, in some embodiments, the arc-shaped groove 51 can be replaced by a stop, so that the linkage 62 contacts and pushes the stop during the rotation of the linkage frame 61 relative to the limiting member 5 in the first direction when it is pressed by the first connecting part 31, thereby achieving the switching from the driving disconnected state to the driving connected state between the linkage 62 and the limiting member 5. Furthermore, in some embodiments, the arc-shaped groove 51 can be replaced by a hook, so that the linkage 62 hooks and connects with the hook during the rotation of the linkage frame 61 relative to the limiting member 5 in the first direction when it is pressed by the first connecting part 31, thereby achieving the switching from the driving disconnected state to the driving connected state between the linkage 62 and the limiting member 5.

[0090] When the linkage 61 is pressed against by the first connecting part 31 and rotates in the first direction, in order to facilitate the linkage 61 returning to its unpressed position after the pressing action of the first connecting part 31 is released, see [reference needed]. Figure 2 as well as Figures 9-28 In some embodiments, the linkage mechanism 6 includes not only the linkage frame 61 but also an elastic element 63. The elastic element 63 applies an elastic force to the linkage frame 61, causing the linkage frame 61 to rotate in a second direction opposite to the first direction. This allows the linkage frame 61 to return to its pre-pressed position by rotating in the second direction after the first connecting part 31 releases its pressing action. Thus, after the first connecting part 31 releases its pressing action, the linkage frame 61 automatically returns to its pre-pressed position under the action of the elastic element 63, requiring no additional manual operation or the use of a separate motor or other power mechanism, making it simple and efficient.

[0091] Additionally, to ensure that the linkage 61 stops at its pre-pressed position, see [reference needed]. Figure 7In some embodiments, during the rotation of the linkage 61 in the second direction, it is stopped by the support device 2 and remains at the position before being pressed down. Thus, after the pressing action of the first connecting part 31 is released, when the linkage 61 rotates to the position before being pressed down in the second direction, it stops under the stop of the support device 2 and no longer continues to rotate in the second direction. Therefore, it effectively prevents the linkage 61 from over-rotating in the second direction and improves the return accuracy of the linkage 61.

[0092] Further, see Figures 5-8 In some embodiments, the support device 2 is provided with a through hole 27. When the linkage frame 61 is in the position before being pressed down, the part of the linkage frame 61 that contacts the first connecting part 31 (which may be called the pressure-bearing part) is exposed by the through hole 27, so that the first connecting part 31 can be pressed down by the first connecting part 31 passing through the through hole 27 during the process of the first connecting part 31 connecting to the second connecting part 32. Based on this, on the one hand, the linkage frame 61 can be stopped in the position before being pressed down by the part of the support device 2 located outside the through hole 27; on the other hand, in the position before being pressed down, the pressure-bearing part of the linkage frame 61 can be exposed from the through hole 27 without being blocked by the support device 2, thus facilitating the pressure-bearing part to be pressed down by the first connecting part 31. It can be seen that the provided through hole 27 neither affects the support device 2's stopping of the linkage frame 61, nor does it facilitate the first connecting part 31 pressing the linkage frame 61.

[0093] In the various embodiments of this application, the structural form of the linkage 61 is not limited. As one example, see... Figure 9 In some embodiments, the linkage frame 61 includes a frame body 64 and a flange 65. The linkage member 62 is disposed on the frame body 64, and the flange 65 is connected to the top of the frame body 64 and folded relative to the frame body 64. During the process of connecting the first connecting part 31 to the second connecting part 32, the first connecting part 31 presses down the linkage frame 61 by pressing down the flange 65. In this case, the flange 65 constitutes the pressure-receiving part of the linkage frame 61, which is convenient to be pressed by the first connecting part 31. In particular, this linkage frame 61 with the flange 65 is convenient to cooperate with the through hole 27 provided on the support device 2. Specifically, the flange 65 can be conveniently exposed from the through hole 27, and the bend of the flange 65 and the frame body 64 can be conveniently stopped by the part of the support device 2 located outside the through hole 27, thereby making it easier to realize the pressing down of the linkage frame 61 by the first connecting part 31 without affecting the stopping of the linkage frame 61 by the support device 2.

[0094] In various embodiments of this application, the limiting member 5 contacts the first connecting part 31 when the first connecting part 31 and the second connecting part 32 are connected in place. This can be either that the limiting member 5 just contacts the first connecting part 31 when the first connecting part 31 and the second connecting part 32 are connected in place, or that the limiting member 5 has already contacted the first connecting part 31 before the first connecting part 31 and the second connecting part 32 are connected in place. In this configuration, before the limiting member 5 is fully connected to the first connecting part 31 and the second connecting part 32, i.e., when it is in contact with the first connecting part 31, the limiting member 5 and the first connecting part 31 are not just in contact when they are fully connected, but have been in contact for a period of time, forming a tight contact (also known as interference contact), and producing a certain deformation. This can more effectively prevent the limiting reliability and the safety of the seat from being affected by processing errors, thereby effectively improving the limiting reliability and the safety of the seat. This is because the influence of processing errors can be compensated by the difference in the tightness of the contact between the limiting member 5 and the first connecting part 31. For example, if the first connecting part 31 is smaller than the design size due to processing errors, resulting in the first connecting part 31 being far from the position corresponding to the design size when it is fully connected, then the limiting member 5 can compensate for the corresponding error by reducing the tightness of the contact with the first connecting part 31 and reducing the amount of deformation between the two, so that the limiting member 5 can still effectively stop and limit the first connecting part 31.

[0095] To ensure that the limiting member 5 can reliably remain in the initial position, see [reference needed]. Figures 5-9 In some embodiments, the support assembly 3 further includes a constraint groove 26. When in the initial position, the limiting member 5 passes through the constraint groove 26 and abuts against the groove wall of the constraint groove 26 away from the second connecting portion 32, thereby restricting the rotation of the limiting member 5 from the initial position in a second direction opposite to the first direction. In this case, the groove wall of the constraint groove 26 away from the second connecting portion 32 can stop the limiting member 5 in the initial position, preventing it from rotating from the initial position in the second direction opposite to the first direction. Therefore, it is beneficial to reliably keep the limiting member 5 in the initial position and improve the return reliability of the limiting member 5. Moreover, since the limiting member 5 passes through the constraint groove 26, the constraint groove 26 can also restrict the movement of the limiting member 5 along the rotation axis. This is beneficial to improving structural reliability, facilitating the rotation of the limiting member 5 around the rotation axis, and smoothly realizing the rotation-following limiting function.

[0096] The constraint groove 26 can be provided on the support device 2, or it can be provided on other structural components. For example, see Figures 5-9In some embodiments, the support assembly 3 includes not only the support device 2 but also a constraint member 25, which is disposed on the support device 2, and a constraint groove 26 is disposed on the constraint member 25. This facilitates the placement of the constraint groove 26. Since there is no need to provide a constraint groove 26 on the support device 2, changes to the structure of the support device 2 can be reduced.

[0097] Additionally, in the case where constraint slot 26 is provided, see [reference needed]. Figures 2-28 In some embodiments, the limiting mechanism 4 further includes a stop 7, which is connected to the support device 2. The stop 7 stops the limiting member 5 when the constraint groove 26 is damaged and can no longer restrict the rotation of the limiting member 5 from its initial position along the second direction. This stop prevents the limiting member 5 from rotating by a preset angle along the second direction from the groove wall of the constraint groove 26 away from the second connecting portion 32. Based on this, the constraint groove 26 and the stop 7 can form a two-stage restriction on the rotation of the limiting member 5 from its initial position towards the second direction, further improving the reliability of the limiting mechanism and the safety of the seat. Specifically, as mentioned above, the limiting mechanism 4 of this application can reliably limit the first connecting part 31, preventing it from accidentally detaching. Normally, the first connecting part 31 does not move much. However, in extremely rare cases, if the seat 1 suddenly moves significantly, and the first connecting part 31 suddenly moves a large displacement away from the second connecting part 32 (referred to as rearward), then the first connecting part 31 will push the limiting member 5 to rotate in the second direction. In some cases, the limiting member 5 may be stopped by the constraint groove 26 and no longer rotate in the second direction. In other cases, if the movement of the first connecting part 31 is greater and the force is stronger, it may disrupt the constraint groove 26's movement away from the second connecting part 32. The groove wall of the connecting part 32 continues to rotate in the second direction away from the groove wall of the second connecting part 32 by the constraint groove 26. By further setting the stop member 7, the corresponding problem can be effectively solved. In the case that the constraint groove 26 is damaged, if the limiting member 5 is pushed by the first connecting part 31 to continue rotating in the second direction from the constraint groove 26, the limiting member 5 will be stopped by the stop member 7 after continuing to rotate in the second direction by a preset angle. This allows the limiting member 5 to stop at the stop member 7 and no longer continue to rotate in the second direction. This effectively limits the displacement of the first connecting part 31 in the direction away from the second connecting part 32 and prevents the first connecting part 31 from moving away from the second connecting part 32 in extreme cases. In this way, the reliability of the limiting and the safety of the seat can be further improved.

[0098] Of course, the scheme of setting the constraint groove 26 and the stop 7 for two-stage stop and limit is more suitable for situations where the constraint groove 26 is easily damaged (for example, the part where the constraint groove 26 is located is made of plastic or other materials and is easily damaged). As a variation, the constraint groove 26 can also be set to be less likely to be damaged, thereby eliminating the stop 7.

[0099] In this application, the structural form of the first connecting part 31 is not limited. See, for example... Figures 2-28 The first connecting part 31 includes a locking hook 33, which is hooked to the second connecting part 32 to achieve a detachable connection between the first connecting part 31 and the second connecting part 32. Thus, the first connecting part 31 and the second connecting part 32 are hooked together to achieve a detachable connection, making disassembly more convenient and improving the efficiency of seat disassembly, thus achieving a quick-release function.

[0100] In addition, in this application, the support device 2 can adopt various structural forms.

[0101] For example, in some embodiments, the support device 2 includes a carriage floor, a first connecting part 31 disposed on the seat 1, and a second connecting part 32 and a limiting mechanism 4 disposed on the carriage floor. In this case, no other structural components such as the slide rail 22 or support member 21 (mentioned below) are provided between the seat 1 and the carriage floor; the seat 1 is directly installed on the carriage floor and cannot slide back and forth inside the carriage. In the corresponding case, by using the carriage floor as the support device 2, and by disposing of the first connecting part 31 on the seat 1, and by disposing of the second connecting part 32 and the limiting mechanism 4 on the carriage floor, a detachable connection between the seat 1 and the carriage floor can be easily achieved, enabling the seat to be quickly removed. Furthermore, the limiting mechanism 4 can reliably limit the first connecting part 31, improving the safety of the seat 1.

[0102] For example, in some embodiments, the support device 2 includes a carriage floor, and the seat assembly 10 further includes a slide rail 22. The slide rail 22 includes a first rail 23 and a second rail 24 that are slidably connected. The first rail 23 is connected to the carriage floor, and the seat 1 is connected to the second rail 24. A first connecting part 31 is disposed on the first rail 23, and a second connecting part 32 and a limiting mechanism 4 are disposed on the carriage floor. In this case, the seat 1 is not directly installed on the carriage floor, but a slide rail 22 is provided between the seat 1 and the carriage floor. The seat 1 is installed on the slide rail 22, allowing the seat 1 to move back and forth within the carriage. Correspondingly, by using the carriage floor as the support device 2, and by disposing the first connecting part 31 on the first rail 23, and by disposing the second connecting part 32 and the limiting mechanism 4 on the carriage floor, a detachable connection between the seat 1 and the slide rail 22 and the carriage floor can be easily achieved, enabling the quick-release function of the seat. Furthermore, the limiting mechanism 4 can reliably limit the first connecting part 31, improving the safety of the seat 1.

[0103] For example, in some embodiments, the support device 2 includes a slide rail 22 and a support member 21. The slide rail 22 includes a first rail 23 and a second rail 24 that are slidably connected. The first rail 23 is used to connect with the floor of the carriage. The seat 1 is connected to the second rail 24 through the support member 21. A first connecting part 31 is disposed on the support member 21, and a second connecting part 32 and a limiting mechanism 4 are disposed on the second rail 24. In this case, the seat 1 is not directly installed on the floor of the carriage, but a slide rail 22 and a support member 21 are provided between the seat 1 and the floor of the carriage. The seat 1 is installed on the slide rail 22 through the support member 21, so that the seat 1 can move back and forth in the carriage. In this case, the slide rail 22 and the support member 21 are used as the support device 2, and the first connecting part 31 is set on the support member 21, while the second connecting part 32 and the limiting mechanism 4 are set on the second rail 24. This allows for a convenient detachable connection between the seat 1, the support member 21, and the slide rail 22, enabling quick-release of the seat. Furthermore, the limiting mechanism 4 reliably limits the first connecting part 31, improving the safety of the seat 1. Since the seat 1 and the support member 21 are detachably connected to the slide rail 22, when disassembling the seat 1, only the support member 21 needs to be disassembled along with it, without needing to disassemble the slide rail 22. Therefore, disassembly is more convenient compared to disassembling the seat 1 along with the slide rail 22.

[0104] For example, see Figure 1 In some embodiments, the support device 2 includes a support member 21, which is used to connect with a slide rail 22 disposed on the floor of the carriage. A first connecting part 31 is disposed on the seat 1, and a second connecting part 32 and a limiting mechanism 4 are disposed on the support member 21. In this case, the seat 1 is not directly installed on the floor of the carriage, but a slide rail 22 and a support member 21 are provided between the seat 1 and the floor of the carriage. The seat 1 is installed on the slide rail 22 through the support member 21, so that the seat 1 can move back and forth in the carriage. Correspondingly, by using the support member 21 as the support device 2, and by disposing of the first connecting part 31 on the seat 1, and the second connecting part 32 and the limiting mechanism 4 on the support member 21, a detachable connection between the seat 1 and the support member 21 can be easily realized, realizing the quick-release function of the seat. Moreover, the limiting mechanism 4 can reliably limit the first connecting part 31, improving the safety of the seat 1. Since the seat 1 is detachably connected to the support member 21, it is not necessary to disassemble the support member 21 and the slide rail 22 together when disassembling the seat 1, thus making disassembly more convenient. Moreover, since it is not necessary to provide a second connecting part 32 and a limiting mechanism 4 on the slide rail 22, there is no need to change the structure of the slide rail 22, which reduces the difficulty of improvement.

[0105] It is understandable that, in the case where the support device 2 includes the floor of the carriage, the seat assembly 10 can be a vehicle.

[0106] Next, combined Figures 1-28The embodiments shown further illustrate this application.

[0107] like Figures 1-28 As shown, in this embodiment, the seat assembly 10 includes a seat 1, a first connecting part 31, a third connecting part 36, and a support assembly 3, and the support assembly 3 includes a support device 2, a second connecting part 32, a fourth connecting part 37, a constraint member 25, and a limiting mechanism 4.

[0108] Seat 1 is for passengers to sit on. Figures 1-28 Only the frame 11 of seat 1 is shown in the image, but it is understood that seat 1 may also include other auxiliary structures such as a cushion.

[0109] The support device 2 is located below the seat 1 to support the seat 1. Figure 1 As shown, in this embodiment, the support device 2 is mounted on the floor of the vehicle compartment and includes a slide rail 22 and a support member 21. The slide rail 22 includes a first rail 23 and a second rail 24. The first rail 23 is fixed to the floor of the vehicle compartment. The second rail 24 is slidably mounted on the first rail 23. The support member 21 is mounted on the second rail 24 and connected to the seat 1 to support the seat 1, allowing the seat 1 and the support member 21 to slide together with the second rail 24. The slide rail 22 extends along the front-rear direction of the vehicle, allowing the seat 1 to slide back and forth within the vehicle compartment, changing its front-rear position. It can be understood that the front-rear direction of the vehicle is the direction of travel, where forward is considered "front" and backward is considered "reverse"; the up-down direction is consistent with the direction of gravity, where down is considered "down" and up is considered "up"; the left-right direction is perpendicular to the front-rear and up-down directions. A support device 2 is provided on the lower left and right sides of the seat 1. The two support devices 2 have identical structures.

[0110] Depend on Figure 9 As can be seen, in this embodiment, the support member 21 is provided with a through hole 27. The through hole 27 extends through the support member 21 in the vertical direction. Furthermore, as... Figures 5-9As shown, in this embodiment, the support member 21 is provided with a constraint member 25. The constraint member 25 is block-shaped, fixed above the through hole 27, and has a constraint groove 26. The lower end of the constraint groove 26 is open and communicates with the through hole 27, and its front and upper ends are open, while its rear end is closed, so as to accommodate the first connecting part 31 and the limiting member 5 of the limiting mechanism 4, thereby limiting the first connecting part 31 and the limiting member 5. After the seat 1 is installed, the first connecting part 31 is connected in place, and a part of the first connecting part 31 and the limiting member 5 is located in the constraint groove 26, so that the constraint groove 26 can constrain the left and right displacement (i.e., the displacement along the rotation axis of the first connecting part 31) of the first connecting part 31 and the limiting member 5. Furthermore, before the seat 1 is installed, the limiting member 5 is in its initial position, with its rear end abutting against the rear wall of the constraint groove 26 (i.e., the groove wall of the constraint groove 26 away from the second connecting part 32). In this way, the constraint groove 26 can restrict the rotation of the limiting member 5 from its initial position in the second direction (corresponding to the clockwise direction in the figure). In addition, the through hole 27 and the constraint groove 26 also facilitate the first connecting part 31 to press down on the limiting member 5 and the linkage frame 61 of the limiting mechanism 4.

[0111] The first connecting part 31, the second connecting part 32, the third connecting part 36, and the fourth connecting part 37 are all disposed between the seat 1 and the support member 21 to achieve a detachable connection between the seat 1 and the support member 21, thereby enabling a quick-release function for the seat. Specifically, the first connecting part 31 and the third connecting part 36 are both disposed on the seat 1 and are spaced apart from front to back, located at the front and rear ends of the seat 1. The second connecting part 32 and the fourth connecting part 37 are both disposed on the support member 21 and are spaced apart from front to back, located at the front and rear ends of the support member 21. The first connecting part 31 and the second connecting part 32 cooperate with each other for a detachable connection, thereby achieving a detachable connection between the front end of the seat 1 and the support member 21. The third connecting part 36 and the fourth connecting part 37 cooperate with each other for a detachable connection, thereby achieving a detachable connection between the rear end of the seat 1 and the support member 21. Specifically, as... Figures 2-4 As shown, in this embodiment, the first connecting part 31 includes a locking hook 33, and the second connecting part 32 includes a steel wire 34. The steel wire 34 is engaged in the hook groove 35 of the locking hook 33, which enables a detachable connection between the two, which is simple and convenient.

[0112] Based on the above configuration, the seat 1 can be quickly attached and detached from the support device 2 simply by assembling and disassembling the first connecting part 31 and the second connecting part 32, as well as the third connecting part 36 and the fourth connecting part 37. Typically, during installation, the front end of the seat 1 is lowered first, and the first connecting part 31 is connected to the second connecting part 32. Then, the rear end of the seat 1 is lowered, and the third connecting part 36 is connected to the fourth connecting part 37. During disassembly, the third connecting part 36 and the fourth connecting part 37 are separated first, the rear end of the seat 1 is lifted, and then the first connecting part 31 and the second connecting part 32 are separated.

[0113] The limiting mechanism 4 is mounted on the support device 2 to limit the first connecting part 31, preventing it from accidentally detaching from the second connecting part 32, thereby improving the safety of the seat 1. Figures 2-9 As shown, in this embodiment, the limiting mechanism 4 includes a support 8, a limiting member 5, a linkage mechanism 6, a stop member 7, a first shaft 54, a second shaft 71, a reset member 55, and an elastic member 63.

[0114] The support 8 is used to connect the limiting mechanism 4 and the support member 21, so as to realize the setting of the limiting mechanism 4 on the support device 2. Figure 5 and Figure 9 As shown, in this embodiment, the support 8 includes two brackets 81. These two brackets 81 are respectively fixed to the left and right sides of the support member 21 to realize the fixed setting of the support 8 on the support member 21, thereby realizing the setting of the limiting mechanism 4 on the support member 21.

[0115] The limiting member 5 is rotatably mounted on the support 8 to stop and limit the first connecting part 31. Figures 2-9 As shown, in this embodiment, the limiting member 5 is connected to the two supports 81 of the support 8 via a first shaft 54 ​​passing through the shaft holes 52 on the two supports 81 of the supporting member 5 and the support 8, thereby achieving a rotatable setting relative to the support 8 and the support device 2. Furthermore, the limiting member 5 passes through the constraint groove 26 from bottom to top. When the seat 1 is not installed and is not pressed down by the first connecting part 31, the limiting member 5 is in its initial position. Figure 8 As shown, in the initial position, the limiting member 5 passes through the constraint groove 26, with its upper and lower ends located above and below the constraint groove 26 respectively, and it is tilted forward, with its rear end abutting against the rear wall of the constraint groove 26. In this way, the rotation of the limiting member 5 from the initial position to the second direction is restricted by the constraint groove 26, which helps to keep the limiting member 5 in the initial position without being affected by external forces such as the first connecting part 31, and also makes it easier for the limiting member 5 to stop in the initial position during the return process, thus improving the return accuracy of the limiting member 5.

[0116] Furthermore, in this embodiment, when in the initial position, the limiting member 5 is located on the movement path from the first connecting part 31 to the second connecting part 32, thus, as Figures 10-15 As shown, during the installation of seat 1 and the process of connecting the first connecting part 31 to the second connecting part 32, the first connecting part 31 moves forward and downward, passes through the limiting member 5, and presses the limiting member 5 downward. Since the limiting member 5 is rotatably set, the limiting member 5, which is pressed down by the first connecting part 31, will rotate forward from its initial position along the first direction (i.e., counterclockwise) until the first connecting part 31 passes through the limiting member 5, releasing the pressing effect on the limiting member 5.

[0117] The reset member 55 is connected to the limiting member 5 and is used to apply an elastic force in the second direction to the limiting member 5, so that the limiting member 5 can rotate backward from a position located in front of the initial position back to the initial position. Figure 9 As shown, in this embodiment, the reset member 55 includes a spring 56, one end of which hooks onto the connecting hole 53 on the limiting member 5, and the other end hooks onto the connecting hole 53 on the bracket 81, thus connecting the reset member 55 and the bracket 81. Furthermore, the connecting hole 53 on the limiting member 5 is offset relative to the rotation center of the limiting member 5, positioned further back. In this way, the reset member 55 can apply an elastic force in the second direction to the limiting member 5, so that when the first connecting part 31 passes the limiting member 5 and releases the downward pressure on the limiting member 5, the limiting member 5 can automatically rotate back to its initial position from the position pressed down by the first connecting part 31, saving time and effort, and is simple and convenient.

[0118] The linkage mechanism 6 is mounted on the support 8 and is used to drive the limiting member 5 to rotate from its initial position in the first direction after being pressed down by the first connecting part 31, thereby achieving rotational following and limiting. Figures 2-9 As shown, in this embodiment, the linkage mechanism 6 includes a linkage frame 61, a linkage component 62, and an elastic component 63.

[0119] The linkage frame 61 is rotatably mounted on the support 8 and is located on the movement path from the first connecting part 31 to the second connecting part 32. It is pressed down by the first connecting part 31, and after being pressed down by the first connecting part 31, it drives the limiting member 5 to rotate in the first direction for rotational following and limiting. Figure 9 As can be seen, in this embodiment, the linkage frame 61 includes a frame body 64 and a flange 65. The frame body 64 is plate-shaped, and its rear end (which may be referred to as the first end) is rotatably connected to the support 8 via a first shaft 54, so that the linkage frame 61 is rotatably configured relative to the support 8 and the support device 2, allowing the linkage frame 61 and the limiting member 5 to rotate coaxially, while its front end (which may be referred to as the second end) extends forward relative to the limiting member 5, so that the linkage frame 61 forms a cantilever structure that can rotate coaxially with the limiting member 5. The flange 65 is provided at the top of the front end of the frame body 64 and is folded horizontally relative to the frame body 64. Furthermore, as... Figure 7 and Figure 8 As shown, the linkage frame 61 is located below the support member 21. When the linkage frame 61 is not pressed down by the first connecting part 31, its flange 65, at the connection point with the frame body 64, rests against the lower surface of the support member 21, so that the support member 21 restricts the linkage frame 61 from continuing to rotate in the second direction from the corresponding position. Its flange 65 is located directly below the through hole 27 on the support member 21 and is on the movement path of the first connecting part 31 connecting to the second connecting part 32. Thus, the flange 65 protrudes from the through hole 27 (see...). Figure 7During the process of connecting the first connecting part 31 to the second connecting part 32, the first connecting part 31 moves forward and downward. After passing the limiting member 5, it passes the flange 65 and contacts the flange 65, pressing the flange 65 downward. Since the linkage frame 61 is rotatably set, after the flange 65 is pressed down by the first connecting part 31, the linkage frame 61 can rotate in the first direction from the position when it was not pressed down (see...). Figures 19-27 ).

[0120] The linkage 62 is mounted on the linkage frame 61 and drives the linkage frame 61 and the limiting member 5. After the linkage frame 61 is pressed down by the first connecting part 31, the torque of the linkage frame 61 is transmitted to the limiting member 5, allowing the limiting member 5 to rotate along the first direction with the linkage frame 61. Figure 8 and Figure 9 As shown, in this embodiment, the linkage 62 is constructed as a linkage shaft, which is cylindrical and disposed on the frame 64 of the linkage bracket 61, located between the front and rear ends of the frame 64. Correspondingly, the limiting member 5 is provided with an arc-shaped groove 51. The linkage 62 is inserted into the arc-shaped groove 51 and slides with the arc-shaped groove 51. Initially (i.e., before being pressed down by the first connecting part 31), the linkage 62 is located above the lower end of the arc-shaped groove 51, with a gap between it and the lower end of the arc-shaped groove 51 (e.g., ...). Figure 8 As shown, the corresponding intervals are relatively small, in Figures 10-12 as well as Figures 16-18 (As shown in other attached figures, but not clearly). Thus, initially, the linkage 62 and the limiting member 5 are in a drive-disconnected state, and the linkage frame 61 and the limiting member 5 can rotate relative to each other, thereby... Figures 16-21 As shown, when the first connecting part 31 begins to press down on the linkage frame 61, the linkage frame 61 does not drive the limiting member 5 to rotate along the first direction. Instead, it first rotates relative to the limiting member 5 in the first direction, causing the linkage member 62 to slide down to the lower end of the arc-shaped groove 51. This switches the linkage member 62 and the arc-shaped groove 51 from a drive disconnected state to a drive connected state. After that, as... Figures 22-27 As shown, the linkage 61 continues to rotate in the first direction under the downward pressure of the first connecting part 31, which can drive the limiting member 5 to rotate in the first direction as well, so that the limiting member 5 gradually approaches the first connecting part 31 and finally abuts against the rear end of the first connecting part 31 to stop and limit the first connecting part 31.

[0121] The elastic element 63 is connected to the linkage frame 61 and is used to apply an elastic force in the second direction to the linkage frame 61 to drive the linkage frame 61 to rotate from the pressed position back to the position before being pressed. Figure 9As shown, in this embodiment, the elastic element 63 includes a spring 56, one end of which is hooked into the connecting hole 53 at the rear end of the linkage frame 61, and the other end is hooked into the connecting hole 53 on the bracket 81, so as to achieve connection with the linkage frame 61 and the support 8. Furthermore, the connecting hole 53 at the rear end of the linkage frame 61 is offset relative to the rotation center of the linkage frame 61, and is located further back. Thus, after the seat 1 is removed and the first connecting part 31 releases its downward pressure on the linkage frame 61, the linkage frame 61 can automatically return to its position before being pressed down under the action of the elastic element 63, saving time and effort, and is simple and convenient.

[0122] A stop 7 is provided on the support 8 to restrict the rotation of the limiting member 5 from the rear wall of the constraint groove 26 in the second direction (i.e., rearward), so as to prevent the seat 1 and the first connecting part 31 from accidentally moving backward significantly. Figure 2 , Figure 8 and Figure 9 As shown, in this embodiment, the stop 7 is configured as a stop block, which is disposed below the support 21 and connected to the two brackets 81 of the support 8 via the second shaft 71 to achieve a fixed setting on the support 8. The stop 7 and the limiting member 5 are configured such that the stop 7 does not restrict the rotation of the limiting member 5 in the first direction, but only restricts the limiting member 5 from continuing to rotate in the second direction after rotating a preset angle in the second direction from the rear wall of the constraint groove 26, so that the limiting member 5 can only rotate backward at most until its lower end abuts against the top of the stop 7, and cannot continue to rotate backward. In this way, even if the seat 1 experiences a significant rearward impact under special circumstances, causing the first connecting part 31 to push the limiting member 5 to rotate rearward and damage the rear wall of the constraint groove 26, the lower end of the limiting member 5 can be stopped by the stop member 7 when the first connecting part 31 continues to push the limiting member 5 to rotate rearward by a preset angle from the rear wall of the constraint groove 26. This prevents the limiting member 5 from continuing to rotate rearward, effectively limiting the rearward displacement of the seat 1 and the first connecting part 31, and preventing the seat 1 and the first connecting part 31 from shifting significantly backward under special circumstances, so as not to affect the safety of seat use. There is always a gap between the stop member 7 and the lower end of the limiting member 5 during normal seat assembly and disassembly. Only under special circumstances, after the limiting member 5 is pushed by the first connecting part 31 to rotate rearward by a preset angle from the rear wall of the constraint groove 26, does the stop member 7 contact the lower end of the limiting member 5 to stop and limit the limiting member 5.

[0123] Figures 10-27 A schematic diagram illustrating the installation process of seat 1 in this embodiment is shown. Figures 10-27 As shown, the installation process is roughly as follows:

[0124] (1) such as Figures 10-12As shown, when the seat 1 is first installed, the front end of the seat 1 is lowered first, but the first connecting part 31 has not yet reached the limiting member 5. In this case, the limiting member 5 is in the initial position, its rear end is blocked by the rear wall of the constraint groove 26, and the linkage frame 61 is in the position that is not pressed down. The linkage member 62 is above the lower end of the arc groove 51, and there is a gap between it and the lower end of the arc groove 51 (the gap is small and not obvious in the figure).

[0125] (2) such as Figures 13-15 As shown, the front end of seat 1 is then lowered further, and the first connecting part 31 moves downward and forward. The first connecting part 31 then reaches the limiting member 5 and presses down on the limiting member 5, causing the limiting member 5 to rotate from its initial position in the first direction under pressure (see...). Figure 15 (The dashed line with arrows in the middle) During the corresponding process, the linkage frame 61 does not rotate, and the distance between the linkage 62 and the lower end of the arc groove 51 gradually increases;

[0126] (3) such as Figures 16-18 As shown, the first connecting part 31 then continues to move downward and forward, passing the limiting member 5, releasing the downward pressure on the limiting member 5. The limiting member 5 then automatically returns to its initial position under the action of the reset member 55 (see...). Figure 18 (The dashed line with an arrow in the middle).

[0127] (4) such as Figures 19-21 As shown, the first connecting part 31 then reaches the flange 65 of the linkage frame 61 and lowers the rear end of the seat 1 (see...). Figure 19 (The dotted line with arrows in the middle) then the first connecting part 31 presses down the flange 65, driving the linkage frame 61 to drive the linkage member 62 to rotate relative to the limiting member 5 in the first direction (see... Figure 21 (The dotted line with arrows in the middle) causes the linkage 62 to slide downwards in the arc-shaped groove 51, approaching and reaching the lower end of the arc-shaped groove 51. When the linkage 62 reaches the lower end of the arc-shaped groove 51, there is a gap between the limiting member 5 and the rear end of the first connecting part 31 (the gap is small, in...) Figure 21 (not clearly shown in the middle)

[0128] (5) such as Figures 22-24 As shown, the seat 1 is then lowered further, and the first connecting part 31 continues to press down the flange 65. The linkage frame 61 then drives the limiting member 5 to rotate together in the first direction (see...). Figure 24 (The dotted line with arrows in the middle) causes the limiting member 5 to leave the initial position, gradually approach the first connecting part 31, and catch up with the first connecting part 31 and contact the rear end of the first connecting part 31 before the first connecting part 31 is connected in place.

[0129] (6) For example Figures 25-27As shown, after the seat 1 is lowered, the first connecting part 31 and the second connecting part 32 are connected in place, and the third connecting part 36 and the fourth connecting part 37 are connected in place, and the locking is completed. In this case, the lower end of the first connecting part 31 is tightly pressed against the flange 65, and the rear end of the first connecting part 31 is tightly pressed against the limiting member 5, so that the first connecting part 31, the limiting member 5 and the linkage frame 61 form a triangle. Thus, the stability characteristics of the triangle can be used to reliably limit the first connecting part 31. Correspondingly, there is a gap between the lower end of the limiting member 5 and the stop member 7, and the stop member 7 does not stop the limiting member 5.

[0130] Figure 28 The disassembly process of the seat in this embodiment is shown. For example... Figure 28 As shown, when disassembling seat 1, first unlock the third connecting part 36 and the fourth connecting part 37, lift the rear end of seat 1, and the rear end of the first connecting part 31 will tilt up. It can then disengage from the second connecting part 32 without pushing the limiting member 5 backward, or with only a slight push of the limiting member 5 backward, thus successfully disassembling seat 1. During disassembly, the linkage frame 61 and the limiting member 5 can return to their respective initial positions under the elastic force of the elastic member 63 and the reset member 55, respectively, and are stopped by the lower surface of the support member 21 and the rear wall of the constraint groove 26, so that the limiting mechanism 4 returns to its initial state, waiting for the next seat installation process.

[0131] As can be seen, based on the structure of this embodiment, the seat 1 can be easily disassembled and assembled, realizing the quick disassembly function. Moreover, the limiting mechanism 4 is simple and compact in structure. With the cooperation of the limiting member 5 and the linkage mechanism 6, it can rotate and limit the first connecting part 31 used to detachably connect the seat 1 to the support device 2, effectively improving the limiting reliability of the first connecting part 31 and enhancing the safety of the seat 1.

[0132] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and not to limit them; although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this application or equivalent substitutions can be made to some technical features, all of which should be covered within the scope of the technical solutions claimed in this application.

Claims

1. A seat assembly (10), characterized in that, include: Seat (1); The first connecting part (31) is connected to the seat (1); and The support assembly (3) includes a support device (2), a second connecting part (32), and a limiting mechanism (4). The support device (2) is disposed below the seat (1). The second connecting part (32) is connected to the support device (2) and detachably connected to the first connecting part (31) to realize the detachable setting of the seat (1) on the support device (2). The limiting mechanism (4) is disposed on the support device (2) and includes a limiting member (5) and a linkage mechanism (6). The limiting member (5) is rotatably disposed, and the linkage mechanism (6) is connected to the limiting member (5) and the first connecting part (31). The positioning member (5) drives the connection, and during the process of the first connecting part (31) connecting to the second connecting part (32), under the downward pressure of the first connecting part (31), the limiting member (5) is driven to move from the initial position to the first connecting part (31) by rotating along the first direction, so that the limiting member (5) contacts the first connecting part (31) when the first connecting part (31) and the second connecting part (32) are connected in place, and stops the first connecting part (31) to prevent the first connecting part (31) from separating from the second connecting part (32).

2. The seat assembly (10) according to claim 1, characterized in that, The linkage mechanism (6) includes a linkage frame (61) and a linkage member (62). The linkage frame (61) is pressed down by the first connecting part (31) during the process of the first connecting part (31) being connected to the second connecting part (32), and rotates along the first direction. The linkage member (62) is disposed on the linkage frame (61) and has a driving connection with the limiting member (5), so that the linkage frame (61) can drive the limiting member (5) to rotate from the initial position along the first direction through the linkage member (62) during the process of the linkage frame (61) being pressed down by the first connecting part (31).

3. The seat assembly (10) according to claim 2, characterized in that, The limiting member (5) in the initial position is located on the movement path from the first connecting part (31) to the second connecting part (32), and the linkage frame (61) and the limiting member (5) can rotate relative to each other, so that during the process of the first connecting part (31) connecting to the second connecting part (32), the limiting member (5) can be pressed down by the first connecting part (31) before the linkage frame (61) is pressed down by the first connecting part (31), and rotate relative to the linkage frame (61) in the first direction.

4. The seat assembly (10) according to claim 3, characterized in that, The linkage (62) and the limiting member (5) also have a drive disconnect state. The linkage (62) and the limiting member (5) are initially in the drive disconnect state, and only after the linkage frame (61) is pressed down by the first connecting part (31) by a preset distance, the drive disconnect state is switched to the drive connection state, so that the linkage frame (61) can rotate relative to the limiting member (5) along the first direction during the process of being pressed down by the first connecting part (31), and then drive the limiting member (5) to rotate from the initial position along the first direction; and / or, the limiting mechanism (4) also includes a reset member (55), which applies a force to the limiting member (5) to return the limiting member (5) to the initial position.

5. The seat assembly (10) according to claim 4, characterized in that, The limiting member (5) is provided with an arc-shaped groove (51). The linkage member (62) is inserted into the arc-shaped groove (51) and slides with the arc-shaped groove (51) so that the linkage member (62) and the limiting member (5) have a drive connection state and a drive disconnect state. When the linkage member (62) and the limiting member (5) are in the drive disconnect state, the lower end of the linkage member (62) and the arc-shaped groove (51) are spaced apart. After the linkage frame (61) is pressed down by the first connecting part (31) by a preset distance, the linkage member (62) moves to the lower end of the arc-shaped groove (51) and contacts the lower end of the arc-shaped groove (51) so that the linkage member (62) and the limiting member (5) switch from the initial drive disconnect state to the drive connection state.

6. The seat assembly (10) according to any one of claims 2-5, characterized in that, The linkage mechanism (6) further includes an elastic element (63), which applies an elastic force to the linkage frame (61) to cause the linkage frame (61) to rotate in a second direction opposite to the first direction, so that the linkage frame (61) can return to the position before being pressed down by rotating in the second direction after the first connecting part (31) releases the downward pressure on the linkage frame (61); and / or, the linkage frame (61) includes a frame body (64) and a flange (65), the linkage element (62) is disposed on the frame body (64), the flange (65) is connected to the top of the frame body (64) and folded relative to the frame body (64), and the first connecting part (31) presses down the linkage frame (61) by pressing down the flange (65) during the process of connecting to the second connecting part (32).

7. The seat assembly (10) according to claim 6, characterized in that, During the rotation of the linkage frame (61) in the second direction, it is stopped by the support device (2) and stops at the position before being pressed down. Preferably, the support device (2) is provided with a through hole (27). When the linkage frame (61) is in the position before being pressed down, the part of the linkage frame (61) that is in contact with the first connecting part (31) is exposed by the through hole (27) so that the first connecting part (31) passing through the through hole (27) can be pressed down during the process of the first connecting part (31) being connected to the second connecting part (32).

8. The seat assembly (10) according to any one of claims 1-5, characterized in that, The limiting member (5) has been in contact with the first connecting part (31) before the first connecting part (31) and the second connecting part (32) are connected in place; and / or, The first connecting part (31) includes a locking hook (33), which is hooked to the second connecting part (32) to achieve a detachable connection between the first connecting part (31) and the second connecting part (32); and / or, The support assembly (3) further includes a constraint groove (26). In the initial position, the limiting member (5) passes through the constraint groove (26) and abuts against the groove wall of the constraint groove (26) away from the second connecting portion (32), so that the constraint groove (26) restricts the rotation of the limiting member (5) from the initial position in a second direction opposite to the first direction. Preferably, the constraint groove (26) is disposed on the support device (2), or the support assembly (3) further includes a constraint member (25). (25) is disposed on the support device (2), and the constraint groove (26) is disposed on the constraint member (25); and / or, the limiting mechanism (4) further includes a stop member (7), which is connected to the support device (2) and, when the constraint groove (26) is destroyed and the limiting member (5) can no longer be restricted from rotating in the second direction from the initial position, stops the limiting member (5) which rotates by a preset angle in the second direction from the groove wall of the constraint groove (26) away from the second connection part (32).

9. The seat assembly (10) according to any one of claims 1-5, characterized in that, The supporting device (2) includes a carriage floor, the first connecting part (31) is disposed on the seat (1), and the second connecting part (32) and the limiting mechanism (4) are disposed on the carriage floor; or, The supporting device (2) includes a carriage floor, and the seat assembly (10) further includes a slide rail (22). The slide rail (22) includes a first rail (23) and a second rail (24) that are slidably connected. The first rail (23) is connected to the carriage floor, and the seat (1) is connected to the second rail (24). The first connecting part (31) is disposed on the first rail (23), and the second connecting part (32) and the limiting mechanism (4) are disposed on the carriage floor; or, The support device (2) includes a support member (21) for connecting to a slide rail (22) disposed on the floor of the carriage. The first connecting part (31) is disposed on the seat (1), and the second connecting part (32) and the limiting mechanism (4) are disposed on the support member (21); or, The support device (2) includes a slide rail (22) and a support member (21). The slide rail (22) includes a first rail (23) and a second rail (24) that are slidably connected. The first rail (23) is used to connect with the floor of the carriage. The seat (1) is connected to the second rail (24) through the support member (21). The first connecting part (31) is disposed on the support member (21). The second connecting part (32) and the limiting mechanism (4) are disposed on the second rail (24).

10. A limiting mechanism (4) or support assembly (3) for a seat assembly (10) as described in any one of claims 1-9.

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