Multi-functional sitting and lying structure for vehicle

Abstract

The utility model relates to the field of house car discloses a kind of multifunctional sitting and lying structure for vehicle, in turn including hinged backrest, side connecting arm and seat frame, side connecting arm is connected in the two sides of backrest and seat frame, and the other side of backrest is fixedly installed with platform plate, there is the space containing backrest between side connecting arm, locking ring is nested and installed between side connecting arm and hinge plate for limiting the rotation between side connecting arm and hinge plate, the utility model is based on seat frame, seat can be formed when using by backrest and seat frame, and according to the needs of user, let backrest be close to leg frame direction, to adjust the size of the riding area to adapt to own riding habit, also can be formed bed by backrest, seat frame and leg frame flat for user to lie down, and platform plate behind backrest can be swung to horizontal to supply user to sit on seat frame as table board to carry out office, or supply to be extended to the area close to house car rear door as article platform.

Description

Technical Field

[0001] This utility model relates to the field of RVs, specifically a multi-functional seating and reclining structure for vehicles. Background Technology

[0002] With the booming development of the RV market in recent years, personalized and functional modifications to RVs have become the choice of the vast majority of consumers. The core demand is to maximize the use of limited interior space, and seats, as the largest space occupiers, naturally become the focus of the modification.

[0003] Existing RV seats are inconvenient to adjust and have poor space expansion capabilities. Their functions are often limited to a single purpose of seating. Most seats cannot be transformed into beds, failing to meet the most basic rest needs of RV life. In addition, the seats and tables have low compatibility, making it difficult to conveniently combine them into a multi-functional area for dining, working, or entertainment. Consumers lack feasible structural foundations, making it difficult to modify RVs to meet their needs. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a multi-functional reclining structure for vehicles.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-functional reclining structure for vehicles, comprising a back frame, side arms, and a seat frame connected in sequence by hinges. The seat frame is horizontally positioned, and the side arms connect to both sides of the back frame and the seat frame. A drive motor is fixedly installed inside the back frame and the seat frame, and the drive motor is axially connected to the side arms. One side of the back frame and the seat frame is covered with a pad, and a platform plate is fixedly installed on the other side of the back frame. There is space between the side arms to accommodate the back frame. The projection of the hinge connection point between the side arms and the seat frame on the horizontal plane is located inside the projection of the seat frame on the horizontal plane. The length of the side arms is greater than the length of the back frame. Hinge plates are fixedly provided on both sides of the seat frame and the back frame. The hinge plates are hinged to the side arms via bearings, and a locking ring is nested between the side arms and the hinge plates to restrict rotation between them.

[0006] Furthermore, in the horizontally unfolded seat frame, side armrests, and back frame, the padding on the seat frame is located on the upper side of the seat frame, the padding on the back frame is located on the lower side of the back frame, and the platform plate is located on the upper side.

[0007] Furthermore, a first ring extends and is fixed to the side arm, and a second ring extends and is fixed to the hinge plate. The first ring and the second ring are respectively nested on the outer ring and inner ring of the bearing. A mating ring also extends and is fixed to the hinge plate, and the locking ring is nested on the first ring and the mating ring.

[0008] Furthermore, the first and second rings have laterally extending wide-edge structures at their ends. The wide edge of the first ring is provided with a recessed proximal limiting groove, and locking platforms are provided on both sides of the proximal limiting groove. A support pad is nested on the wide edge of the second ring. The locking ring includes two semi-circular ring structures that are hinged to each other on one side. The inner side of the semi-circular ring structure is provided with a recessed ring buckle groove. The ring buckle groove is provided with engagement edges on both sides. One engagement edge has a protruding top platform inside for engaging with the proximal limiting groove, and the other engagement edge abuts against the support pad.

[0009] Furthermore, the other side of the semi-circular ring structure is provided with an outwardly extending operating ear, and a fixing member is fixedly installed between the two operating ears. The operating ears are used to fix the two semi-circular ring structures and drive the locking ring to rotate.

[0010] Furthermore, the distance between the top surface of the locking platform and the side surface of the wide edge is greater than the distance between the bottom surface of the near-position limiting groove and the side surface of the wide edge. The top platform moves from the near-position limiting groove to the locking platform, causing the engagement edge on the other side to move closer to the first collar.

[0011] Furthermore, the reclining structure also includes a leg frame, which is hinged to the rear of the seat frame. One side of the leg frame is covered with a pad, and a drive motor is fixedly installed inside the seat frame in the direction of the leg frame and is axially connected to the leg frame.

[0012] Furthermore, the fastener is a bolt, which passes through one operating lug and locks onto the other operating lug.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This utility model is based on a seat frame. A sitting and reclining structure is formed by connecting the back frame, side arms, seat frame and leg frame in sequence with hinges. When in use, a seat can be formed by the back frame and seat frame. Moreover, according to the user's needs, the side arms can continue to swing forward towards the seat, and the lower end of the back frame also swings forward towards the seat, so that the side arms and back frame form a triangular structure on the seat frame, thereby moving the back frame closer to the leg frame, allowing the user to adjust the size of the sitting area to suit their own sitting habits. The backrest, seat, and leg rests can be laid flat to form a bed for users to lie down. The platform behind the backrest can be swung up to a horizontal position, allowing users to sit on the seat as a table for work, or extend to the area near the rear door of the RV as a storage platform. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a multi-functional reclining vehicle structure according to the present invention.

[0015] Figure 2This is a three-dimensional schematic diagram of one embodiment of the sitting / lying structure of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the interaction between the side arm and the hinge plate of this utility model and the locking ring.

[0017] Figure 4 This is a side sectional view of the state changes of the locking ring of this utility model.

[0018] In the diagram: 1. Seat frame; 2. Backrest frame; 3. Leg rest; 4. Side armrests; 5. Pad; 6. Drive motor; 7. Hinge plate; 8. Locking ring; 21. Platform plate; 41. First ring; 42. Proximal limiting groove; 43. Locking platform; 71. Mating ring; 72. Support pad; 73. Second ring; 81. Ring groove; 82. Top platform; 83. Engaging edge; 84. Operating ear. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0020] Examples, such as Figures 1-4 As shown: This utility model provides a multi-functional reclining structure for vehicles, including a back frame 2, side arms 4, a seat frame 1, and a leg support 3 connected in sequence by hinges. The seat frame 1 is horizontally positioned, and its bottom end is used to mount a slide rail base, allowing the reclining structure to adjust its posture by moving the slide rail base to achieve a suitable space. The seat frame 1, back frame 2, and leg support 3 are all square frames. The side arms 4 are long strips, connecting the back frame 2 and the two sides of the seat frame 1. The bottom end of the side arms 4 is hinged to the seat frame 1. The top of the leg frame 3 is hinged to the back panel, and the leg frame 3 is hinged to the tail of the seat frame 1. The back frame 2 and the seat frame 1 are covered with a pad 5 on one side, and the leg frame 3 is covered with a pad 5 on one side. The platform plate 21 is fixedly installed on the other side of the back frame 2. The pad 5 is used for users to sit or lie down. The leg frame 3, seat frame 1, side arm 4 and back frame 2 are unfolded in a horizontal position. The pads on the leg frame 3 and seat frame 1 are located on the upper side of the seat frame 1, the pads on the back frame 2 are located on the lower side of the back frame 2, and the platform plate 21 is located on the upper side. A drive motor 6 is fixedly installed inside the back frame 2 and the seat frame 1. The drive motor 6 is axially connected to the side arm 4. The drive motor 6 is fixedly installed inside the seat frame 1 in the direction of the leg frame 3 and is axially connected to the leg frame 3. In this embodiment, the drive motor 6 is a geared motor. It drives the side arm 4 to rotate relative to the seat frame 1 and the back frame 2 through the transmission shaft. It also drives the leg frame 3 to rotate relative to the seat frame 1 through the transmission shaft. The drive motor 6 is connected to the control board and the vehicle's power supply. The rotation of the drive motor 6 is controlled by the switch button on the control board. The control board mainly controls the power connection and the rotation direction of the drive motor 6.

[0021] In this embodiment, there is space between the side arms 4 to accommodate the backrest 2. The length of the side arms 4 is greater than the length of the backrest 2, which allows the backrest 2 to swing to the inside of the side arms 4. After the side arms 4 swing upward, the backrest 2 can form a backrest structure above the seat frame 1. It should be noted that the projection position of the hinge connection point between the side arms 4 and the seat frame 1 on the horizontal plane is located inside the projection position of the seat frame 1 on the horizontal plane. This allows the side arms 4 to drive the backrest 2 to form a triangular structure on the seat frame 1, thereby allowing the backrest 2 to move closer to the leg frame 3 to reduce the length of the seat frame 1 that can be used for sitting. This allows the user to adjust the size of the sitting area to suit their sitting habits.

[0022] In this embodiment, the reclining structure is installed in the rear space of the RV. The back panel can be rotated in the upward direction of the platform 21 to flatten the platform 21, which can be used as a platform for placing items or a table for work. It should be noted that the platform 21 covers the back frame 2 so that the side near the hinge connection between the back frame 2 and the side arm 4 is flat. This is because the drive motor 6 is located inside the hinge connection between the back frame 2 and the side arm 4, and this area is not on the same horizontal plane as the back frame 2. Therefore, the platform 21 covering this area needs to completely cover the drive motor 6 so that the entire usable area on the platform 21 is flat.

[0023] In this embodiment, hinge plates 7 are fixedly provided on both sides of the seat frame 1 and the back frame 2. The hinge plates 7 are hinged to the side connecting arms 4 through bearings. A locking ring 8 is nested between the side connecting arms 4 and the hinge plates 7 to restrict the rotation between the side connecting arms 4 and the hinge plates 7. A first ring 41 is extended and fixed on the side connecting arms 4, and a second ring 73 is extended and fixed on the hinge plates 7. The first ring 41 and the second ring 73 are arranged facing each other. The diameter of the first ring 41 is larger than that of the second ring 73. The first ring 41 is nested on the outer ring of the bearing, and the second ring 73 is nested in the inner ring of the bearing, so that the side connecting arms 4 and the hinge plates 7 can rotate through the bearings. A mating ring 71 is also extended and fixed on the hinge plates 7. The inner diameter of the mating ring 71 is larger than that of the bearing, and the outer diameter of the mating ring 71 is the same as that of the first ring 41. The locking ring 8 is nested on the first ring 41 and the mating ring 71. It should be noted that there is a gap between the first ring 41 and the mating ring 71.

[0024] Specifically, the ends of the first ring 41 and the second ring 73 have a wide edge structure that extends laterally. The wide edge is also a ring structure nested on the first ring 41 and the second ring 73. The wide edge of the first ring 41 is provided with a recessed proximal limiting groove 42, the recessed direction is towards the hinge plate 7. Locking platforms 43 are provided on both sides of the proximal limiting groove 42. The locking platforms 43 are raised on the proximal limiting groove 42 and the direction of the protrusion is away from the hinge plate 7. It should be noted that the distance from the top surface of the locking platform 43 to the side of the wide edge is greater than the distance from the bottom surface of the proximal limiting groove 42 to the side of the wide edge. Therefore, the proximal limiting groove 42 is closer to the mating ring 71 while the locking platform 43 is farther away from the mating ring 71. The second ring 73 has a support pad 72 nested on its wide edge. The support pad 72 is made of rubber and is used to provide elasticity in the axial direction of the mating ring 71. The locking ring 8 includes two semi-circular ring structures. One side of the two semi-circular ring structures is hinged to each other. The other side of the semi-circular ring structure has an outwardly extending operating ear 84. The operating ear 84 is used to fix the two semi-circular ring structures and drive the locking ring 8 to rotate. The inner side of the semi-circular ring structure has a recessed ring buckle groove 81. The two semi-circular ring structures are fastened to the wide edge through the ring buckle groove 81. The ears 84 are fixed together by the fasteners installed. The ring groove 81 has engagement edges 83 on both sides. After fastening, the engagement edges 83 are located between the side arm 4 and the wide edge, and between the hinge plate 7 and the wide edge, respectively. One engagement edge 83 has a raised top platform 82 inside for cooperating with the proximal limiting groove 42. The other engagement edge 83 abuts against the support pad 72. Thus, the top platform 82 moves from the proximal limiting groove 42 to the locking platform 43, causing the other engagement edge 83 to move closer to the first ring 41.

[0025] In this embodiment, the fastener is a bolt, which passes through one operating lug 84 and is locked onto the other operating lug 84.

[0026] In summary, in practical use, this embodiment installs the reclining structure in the rear space of the RV. When used as a seat, the leg support 3 swings downward, the back support 2 swings into the inside of the side arm 4, and then the side arm 4 swings upward so that the back support 2 can form a backrest structure above the seat frame 1. According to the user's needs, the side arm 4 can continue to swing forward towards the seat, and the lower end of the back support 2 also swings forward towards the seat, so that the side arm 4 and the back support 2 form a triangular structure on the seat frame 1, thereby allowing the back support 2 to move closer to the leg support 3, allowing the user to adjust the size of the seating area to suit their own seating habits. When fixation is required, the geared motor itself has a self-locking function. The user can also push the operating ear 84 by hand to make the locking ring 8 rotate on the first ring 41 and the mating ring 71. The rotation causes the top platform 82 to move from the near-position limiting groove 42 to the locking platform 43, and causes the engagement edge 83 on the other side to move closer to the first ring 41, thereby squeezing the support pad 72 and increasing the resistance to relative rotation between the mating ring 71 and the first ring 41. In this way, the position of the opposite arm 4 and the back frame 2 is locked in conjunction with the geared motor. When used as a bed, the leg frame 3 swings upward to be level with the seat frame 1, the back frame 2 swings into the inside of the side arm 4, and the side arm 4 swings backward to the seat frame 1 so that the back frame 2 and the seat frame 1 are level. At this time, the three cushions 5 are all on top, and the user can lie down. When used as a table, the back panel rotates upwards with the platform 21 facing upwards, making the platform 21 horizontal. The user then sits on the seat facing the platform 21, which is the direction facing the rear of the vehicle, so that there is a table for the user to work inside the RV. Furthermore, when moving around outside the RV, the rear door of the RV is opened, and the side arm 4 continues to swing behind the seat frame 1, while keeping the back frame 2 and the platform 21 horizontal. In this way, the platform 21 can be close to the area outside the rear door of the RV, and can be used as a platform for placing items when cooking or enjoying the view outside the RV.

[0027] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A multi-functional reclining structure for vehicles, characterized in that: The device includes a back frame, side arms, and a seat frame that are hinged together in sequence. The seat frame is horizontally positioned. The side arms are connected to both sides of the back frame and the seat frame. A drive motor is fixedly installed inside the back frame and the seat frame. The drive motor is axially connected to the side arms. One side of the back frame and seat frame is covered with padding, and a platform plate is fixedly installed on the other side of the back frame; There is space between the side arms to accommodate the back frame. The projection position of the hinge connection point between the side arm and the seat frame on the horizontal plane is located inside the projection position of the seat frame on the horizontal plane. The length of the side arm is greater than the length of the back frame. Hinges are fixedly installed on both sides of the seat and back frame. The hinges are hinged to the side arms through bearings. Locking rings are nested between the side arms and the hinges to restrict the rotation between the side arms and the hinges.

2. The multi-functional reclining structure for vehicles according to claim 1, characterized in that: In the horizontally unfolded seat frame, side armrests, and back frame, the padding on the seat frame is located on the upper side, the padding on the back frame is located on the lower side, and the platform plate is located on the upper side.

3. The multi-functional reclining structure for vehicles according to claim 1, characterized in that: A first ring extends and is fixed to the side arm, and a second ring extends and is fixed to the hinge plate. The first ring and the second ring are respectively nested on the outer ring and inner ring of the bearing. A mating ring also extends and is fixed to the hinge plate, and the locking ring is nested on the first ring and the mating ring.

4. The multi-functional reclining structure for vehicles according to claim 3, characterized in that: The first and second rings have laterally extending wide edge structures at their ends. The wide edge of the first ring is provided with a recessed proximal limiting groove, and locking platforms are provided on both sides of the proximal limiting groove. The wide edge of the second ring is nested with a support pad. The locking ring includes two semi-circular ring structures that are hinged to each other on one side. The inner side of the semi-circular ring structure is provided with a recessed ring groove. The ring groove is provided with an engagement edge on both sides. The engagement edge on one side is provided with a raised top platform for cooperating with the proximal limiting groove. The engagement edge on the other side abuts against the support pad.

5. A multi-functional reclining structure for vehicles according to claim 4, characterized in that: The other side of the semi-circular ring structure is provided with an outwardly extending operating ear, and a fixing member is fixedly installed between the two operating ears. The operating ears are used to fix the two semi-circular ring structures and drive the locking ring to rotate.

6. The multi-functional reclining structure for vehicles according to claim 4, characterized in that: The distance from the top surface of the locking platform to the side of the wide edge is greater than the distance from the bottom surface of the near-position limiting groove to the side of the wide edge. The top platform moves from the near-position limiting groove to the locking platform, causing the engagement edge on the other side to move closer to the first collar.

7. A multi-functional reclining vehicle structure according to claim 1, characterized in that: The reclining structure also includes a leg frame, which is hinged to the rear of the seat frame. One side of the leg frame is covered with a pad, and a drive motor is fixedly installed inside the seat frame in the direction of the leg frame and is axially connected to the leg frame.

8. A multi-functional reclining structure for vehicles according to claim 5, characterized in that: The fastener is a bolt, which passes through one operating lug and is locked onto the other operating lug.

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