Seat mechanism with carrier

Abstract

The present application relates to a seat mechanism and a carrier, the seat mechanism comprising a seat, a backrest, a sliding member and a linkage assembly, the sliding member being slidably arranged on the seat in a fore-aft direction, the linkage assembly being movably connected between the sliding member, the seat and the backrest to drive the lower part of the backrest to move forward when the sliding member moves forward along the seat, so that the upper part of the backrest and the rear part of the seat are in the same direction when the backrest and the seat are folded. The carrier provided with the seat mechanism does not have the backrest protruding upwardly above the carrier support when folded, and the backrest can be basically folded in the carrier support and coincide with the rod on the carrier support in the length direction as much as possible, so that the backrest does not need to be broken into multiple segments, and the backrest has good load bearing capacity as a whole.

Description

Technical Field

[0001] This invention relates to the field of carrying devices, and more particularly to a seating mechanism and a vehicle having the seating mechanism. Background Technology

[0002] Existing vehicles such as trolleys, trailers, and car seats typically include a seating mechanism for support, consisting of a seat and a backrest. To prevent the backrest from interfering with other components of the vehicle during folding, it is usually designed as a multi-segment structure along its length. This allows the backrest to be folded down along its length and folded together with the other components when the vehicle is folded. However, this reduces the backrest's support strength, affecting user comfort, and also increases the thickness of the folded backrest, resulting in a larger overall thickness of the folded vehicle. Summary of the Invention

[0003] The purpose of this invention is to provide a seating mechanism. The technical solution adopted by this invention is: a seating mechanism, the seating mechanism including a seat, a backrest, a sliding member, and a linkage component, the sliding member being slidably disposed on the seat in a front-back direction, and the linkage component being movably connected between the sliding member, the seat, and the backrest, so as to drive the lower part of the backrest to move forward when the sliding member moves forward along the seat.

[0004] In some embodiments, the linkage component includes a rocker arm, the lower portion of the backrest being movably connected to a first end of the rocker arm and being rotatably disposed relative to the rocker arm, wherein the first end moves forward relative to the seat as the slider moves forward along the seat.

[0005] In some embodiments, the lower part of the backrest is rotatably connected to the rocker arm, or the lower part of the backrest is connected to the rocker arm via a flexible connector.

[0006] In some embodiments, the rocker arm is rotatably connected to the seat or the slider about a rotation center line, the seat mechanism is in the open state, the first end is located behind the rotation center line, wherein the rocker arm drives the lower part of the backrest to move forward and upward as it flips back and forth about the rotation center line.

[0007] In some embodiments, the rocker arm is rotatably connected to the seat about the rotation center line, and the linkage assembly further includes a linkage rod movably connected between the slider and the rocker arm to drive the rocker arm to rotate relative to the seat about the rotation center line as the slider slides forward along the seat.

[0008] In some embodiments, one end of the linkage rod is rotatably connected to the rocker arm about a first center line, and the other end of the linkage rod is both rotatably connected to the slider about a second center line; or, one end of the linkage rod is both rotatably connected to the rocker arm about a first center line and slidably connected to the slider, and the other end of the linkage rod is rotatably connected to the slider about a second center line, wherein the seat mechanism is in the open state, and in the length extension direction of the rocker arm, the first center line is located between the rotation center line and the first end.

[0009] In some embodiments, one end of the linkage rod is rotatably connected to the swing rod around the first center line; a sliding groove is provided on the other end of the linkage rod, a connecting shaft is provided on the sliding member, the connecting shaft is slidably inserted in the sliding groove, and the axis of the connecting shaft constitutes the second center line.

[0010] In some embodiments, the rocker arm is rotatably disposed relative to the slider about the rotation center line; the linkage assembly further includes a linkage rod movably connected between the seat and the rocker arm to drive the rocker arm to flip relative to the slider about the rotation center line as the slider slides forward along the seat.

[0011] In some embodiments, the rocker arm further has a second end portion, wherein the first end portion and the second end portion are located on opposite sides of the rotation center line, and the linkage is rotatably connected between the seat and the second end portion.

[0012] In some embodiments, the backrest has a first surface and a second surface disposed on opposite sides in the thickness direction, and the seat has a seat upright surface. In the open state, the seat and the backrest are unfolded relative to each other, and a load-bearing space is formed between the first surface and the seat upright surface to provide load-bearing support. In the folded state, the backrest and the seat are folded together, and the second surface faces the seat upright surface.

[0013] Another object of the present invention is to provide a vehicle having the above-described seating mechanism.

[0014] The technical solution adopted by the present invention is: a vehicle having an unfolded state and a folded state, the vehicle including a vehicle support and a seating mechanism as described above disposed on the vehicle support.

[0015] In some embodiments, the vehicle support is provided with a support crossbar. When the vehicle is in the unfolded state, the backrest is supported on the front side of the support crossbar. When the vehicle is in the folded state, the backrest is flipped over and folded to the rear side of the support crossbar.

[0016] In some embodiments, the slider is rotatably connected to the vehicle support about a first pivot, and the rear of the seat is rotatably connected to the vehicle support about a second pivot. During the transition of the vehicle from an unfolded state to a folded state, the rear of the seat moves downward and the distance between the first pivot and the second pivot increases, causing the seat and the backrest to extend vertically and fold together in the front-back direction.

[0017] In some embodiments, the vehicle support includes: Foldable base support assembly; Side frame, the lower part of which is rotatably connected to the base support assembly; The upper support is rotatably connected to the upper part of the side frame; A support frame, rotatably connected between the bottom support assembly and the lower part of the upper support. The sliding member is rotatably connected to the side frame around the first pivot, and the rear of the seat is rotatably connected to the support frame around the second pivot. When the vehicle is converted from an unfolded state to a folded state, the side frame and the support frame flip backward and downward, causing the seat mechanism to fold between the vehicle brackets.

[0018] In some embodiments, the base support assembly includes a first support and a second support, wherein two of the upper part of the first support, the upper part of the second support, and the lower part of the side frame are rotatably connected and the third part is rotatably connected to one of the aforementioned two; or the upper part of the first support, the upper part of the second support, and the lower part of the side frame are rotatably connected about the same axis; the support frame and the second support intersect each other and are rotatably connected at the intersection; the base support assembly also includes a connecting frame, which is movably connected between the lower part of the first support and the support frame.

[0019] Due to the application of the above technical solution, the present invention has the following advantages: the seat mechanism provided in the embodiments of the present invention can move the lower part of the backrest to the front part of the seat when it is folded up, so that when the backrest and the seat are folded together, the upper part of the backrest and the rear part of the seat face the same direction.

[0020] When a vehicle equipped with this seating mechanism is folded, as the vehicle frame folds and the seat folds, the seat is switched to a position where the front is on top and the back is on the bottom, and it retracts with the rods on the vehicle frame. At this time, the lower part of the backrest is close to the front of the seat and is located on top, while the upper part of the backrest is switched to the bottom. This prevents the backrest from protruding upwards above the vehicle frame, and the backrest can be almost completely retracted into the vehicle frame, aligning as much as possible with the rods on the vehicle frame in the length direction. This eliminates the need to break the backrest into multiple segments, giving the backrest a good overall load-bearing capacity. Attached Figure Description

[0021] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional structural diagram of the vehicle in the deployed state according to Embodiment 1 of the present invention; Figure 2 for Figure 1 An exploded view of the vehicle's structure; Figure 3 for Figure 1 A side view of the vehicle's structure; Figure 4 for Figure 3 A longitudinal sectional view of the vehicle; Figure 5 for Figure 4 Enlarged diagram of section A in the middle; Figure 6 for Figure 1 A three-dimensional structural diagram of the vehicle during the folding process; Figure 7 for Figure 6 A side view of the vehicle's structure; Figure 8 for Figure 7 A longitudinal sectional view of the vehicle; Figure 9 for Figure 8 Enlarged schematic diagram of section B in the middle; Figure 10 for Figure 6 A three-dimensional structural diagram of the vehicle during the further folding process; Figure 11 for Figure 10 A side view of the vehicle's structure; Figure 12 for Figure 11 A longitudinal sectional view of the vehicle; Figure 13 for Figure 12 Enlarged diagram of section C; Figure 14 for Figure 1 A three-dimensional structural diagram of the vehicle in its folded state; Figure 15 for Figure 14 A side view of the vehicle's structure; Figure 16 for Figure 15 A longitudinal sectional view of the vehicle; Figure 17 for Figure 16 Enlarged schematic diagram of section D in the middle; Figure 18 This is a three-dimensional structural diagram of the vehicle in the deployed state according to Embodiment 2 of the present invention; Figure 19 for Figure 18 A three-dimensional structural diagram of the vehicle during the folding process; Figure 20 for Figure 18 A three-dimensional structural diagram of the vehicle in its folded state; In the attached diagrams above: 1. First support; 11. First strut; 12. First crossbar; 2. Second support; 21. Second strut; 22. Second crossbar; 3. Side frame; 31. Side support rod; 4. Upper bracket; 41. Push rod; 42. Canopy rod; 5. Support frame; 51. Support rod; 52. Support crossbar; 6. Connecting frame; 61. Connecting rod; 7. Handrails; 8. Seating mechanism; 81. Seat; 81a. Seating face; 811. Seat post; 812. Seat plate; 82. Backrest; 821. First side; 822. Second side; 83. Sliding component; 84. Swing arm; 841. First end; 842. Second end; 85. Linkage rod; 851. Slide groove; 9. Basketball hoop pole; 10. First wheel assembly; 20. Second wheel assembly; 101. First rotating shaft; 102. Second rotating shaft; X0. Rotation center line; X1. First center line; X2. Second center line. Detailed Implementation

[0023] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art. It should be noted that the description of these embodiments is for the purpose of aiding understanding the present invention, but does not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] In this article, the terms "up," "down," "left," and "right," etc., indicate directions or positional relationships based on the orientation observed by the user when the vehicle is in its deployed state. Specifically, for example... Figure 1 The symbols used are illustrative and are intended only to facilitate the description of this application and to simplify the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0025] See Figures 1 to 20 The vehicle shown has an unfolded state and a folded state. The vehicle includes a vehicle support and a seating mechanism 8 disposed on the vehicle support.

[0026] Referring to the accompanying drawings, the seating mechanism 8 of the vehicle includes a seat 81 and a backrest 82. The seating mechanism 8 has an open state and a folded state. When the vehicle is in the unfolded state, the seating mechanism 8 is in the open state accordingly. The seat 81 and the backrest 82 cooperate with each other to form a support space that provides support. The person being carried can sit on the seat 81 and lean against the backrest 82. When the vehicle is in the folded state, the seating mechanism 8 is switched to the folded state accordingly. The seat 81 and the backrest 82 are folded together and folded together with the rods in the vehicle frame.

[0027] In this vehicle, the seating mechanism 8 also includes a slider 83 and a linkage component. The slider 83 is slidably disposed on the seat 81 in the front-back direction. The linkage component is movably connected between the slider 83, the seat 81 and the backrest 82. When the slider 83 moves forward along the seat 81, it drives the lower part of the backrest 82 to move forward, so that the lower part of the backrest 82 moves closer to the front of the seat 81. Thus, after the backrest 82 is further flipped backward, it can fold together with the seat 81 to realize the folding of the seating mechanism 8. In the folded state, the lower part of the backrest 82 moves closer to the front of the seat 81, while the upper part of the backrest 82 faces the same direction as the seat 81.

[0028] In this way, during the folding process of the vehicle, as the vehicle frame folds and the seat 81 folds, the seat 81 is converted to a state where the front is on top and the rear is on the bottom, and it retracts with the rods on the vehicle frame. At the same time, the lower part of the backrest 82 is close to the front of the seat 81 and is located on top, while the upper part of the backrest 82 is converted to the bottom. This prevents the backrest 82 from protruding upwards above the vehicle frame, and the backrest 82 can be basically retracted into the vehicle frame, aligning with the rods on the vehicle frame as much as possible in the length direction. This eliminates the need to break the backrest 82 into multiple segments, giving the backrest 82 good overall load-bearing capacity.

[0029] Specifically, the backrest 82 has a first surface 821 and a second surface 822 located on opposite sides in its thickness direction, and the seat 81 has a sitting surface 81a. When the seat mechanism 8 is in the open state, the seat 81 and the backrest 82 are unfolded relative to each other, and a support space is formed between the first surface 821 and the sitting surface 81a. When the seat mechanism 8 is in the folded state, the backrest 82 and the seat 81 are folded together, and the second surface 822 faces the sitting surface 81a. That is to say, when the seat mechanism 8 is folded, the lower part of the backrest 82 moves to the front of the seat 81, and the backrest 82 flips relative to the seat 81, which allows the backrest 82 and the seat 81 to fold together.

[0030] Referring to the accompanying drawings, in the seat mechanism 8, the linkage component includes a rocker arm 84. The lower part of the backrest 82 is movably connected to the first end 841 of the rocker arm 84 and is configured to flip relative to the rocker arm 84. When the slider 83 moves forward along the seat 81, the first end 841 moves forward relative to the seat 81, thereby driving the lower part of the backrest 82 to move forward. During the process of the lower part of the backrest 82 moving to the front of the seat 81 or after moving to the front of the seat 81, the backrest 82 flips relative to the rocker arm 84, thus realizing the folding of the seat mechanism 8.

[0031] In some embodiments, the lower part of the backrest 82 is connected to the rocker arm 84 via a flexible connector, such as... Figures 1 to 17 In the illustrated embodiment, the flexible connector can be a fabric cover; in other embodiments, the lower part of the backrest 82 is pivotally connected to the rocker arm 84, such as... Figures 18 to 20 As shown.

[0032] In a specific configuration, the rocker arm 84 is rotatably connected to the seat 81 or to the slider 83 around the rotation center line X0. When the seat mechanism 8 is in the open state, the first end 841 of the rocker arm 84 is located behind the rotation center line X0. During the back-and-forth rotation of the rocker arm 84 around the rotation center line X0, the first end 841 moves forward and upward, which causes the angle between the backrest 82 and the horizontal plane to gradually increase. When the angle reaches a certain value, under the action of the weight of the backrest 82, the backrest 82 automatically flips backward relative to the rocker arm 84, so that the upper part of the backrest 82 faces the same direction as the rear part of the seat 81. As the slider 83 continues to move forward along the seat 81, it correspondingly drives the lower part of the backrest 82 to gradually move closer to the front part of the seat 81, completing the folding of the seat mechanism 8.

[0033] The specific structure of the seating mechanism 8 and its arrangement on the vehicle are described in detail below with reference to specific embodiments: Example 1 See Figures 1 to 17 As shown, in the vehicle of this embodiment 1, the swing arm 84 is rotatably connected to the seat 81 via the rotation center line X0; the linkage assembly also includes a linkage rod 85, which is movably connected between the slider 83 and the swing arm 84, so as to drive the swing arm 84 to rotate relative to the seat 81 around the rotation center line X0 when the slider 83 slides forward along the seat 81.

[0034] Specifically, one end of the linkage rod 85 is rotatably connected to the swing arm 84 around the first center line X1, and the other end of the linkage rod 85 is both rotatably connected to the slider 83 around the second center line X2 and slidably connected to it. When the seat mechanism 8 is in the open state, the first center line X1 is located between the rotation center line X0 and the first end 841 along the length extension direction of the swing arm 84; the second center line X2 is located behind the rotation center line X0 along the length extension direction of the seat 81. Thus, when the slider 83 slides forward along the seat 81, it drives the linkage rod 85 to rotate and correspondingly pushes the swing arm 84 forward, causing the swing arm 84 to swing relative to the seat 81 around the rotation center line X0, thereby causing the lower part of the backrest 82 to move forward and further converge with the seat 81.

[0035] Here, a groove 851 is provided at the end of the linkage rod 85 that connects to the slider 83. A connecting shaft is provided on the slider 83, and the connecting shaft is slidably fitted in the groove 851. The axis of the connecting shaft constitutes the second center line X2 mentioned above. Here, through the sliding and rotational cooperation between the groove 851 and the connecting shaft, it is possible to avoid the structure between the rocker arm 84, the linkage rod 85 and the slider 83 causing the slider 83 to slide without being able to drive the linkage rod 85 to rotate when the seat mechanism 8 is in the open state.

[0036] Of course, in other embodiments, the second center line X2 can be positioned in front of the rotation center line X0, so that when the slider 83 slides forward along the seat 81, it can strike the swing arm 84 forward, thereby causing the swing arm 84 to swing relative to the seat 81 around the rotation center line X0. In other embodiments, one end of the linkage rod 85 can be connected to the swing arm 84 in a way that allows it to both rotate relative to the first center line X1 and slide relative to it, and the other end of the linkage rod 85 can be rotatably connected to the slider 83 around the second center line X2. When the slider 83 slides forward along the seat 81, it can also drive the linkage rod 85 to rotate and correspondingly drive the swing arm 84 to swing relative to the seat 81 around the rotation center line X0.

[0037] When the seat mechanism 8 is mounted on the vehicle support, the sliding member 83 is rotatably connected to the vehicle support around the first pivot 101, and the rear part of the seat 81 is rotatably connected to the vehicle support around the second pivot 102. During the process of the vehicle changing from an unfolded state to a folded state, the rear part of the seat 81 moves downward and the distance between the first pivot 101 and the second pivot 102 increases, causing the seat 81 and the backrest 82 to change to extend in the vertical direction and fold together in the front-back direction.

[0038] In a specific configuration, the vehicle support includes a foldable base support assembly, a side frame 3, an upper support 4, and a support frame 5. The lower part of the side frame 3 is rotatably connected to the base support assembly, and the upper part of the side frame 3 is rotatably connected to the upper support 4. The support frame 5 is rotatably connected between the lower part of the base support assembly and the upper support 4. The sliding member 83 is rotatably connected to the side frame 3 around the first pivot 101, and the rear part of the seat 81 is rotatably connected to the support frame 5 around the second pivot 102. When the vehicle is converted from an unfolded state to a folded state, the side frame 3 and the support frame 5 flip backward and downward, causing the seat mechanism 8 to fold between the vehicle support.

[0039] In this embodiment, the bottom support assembly specifically includes a first support 1 and a second support 2. Two of the three components—the upper part of the first support 1, the upper part of the second support 2, and the lower part of the side frame 3—are rotatably connected, and the third component is rotatably connected to one of the aforementioned two components. Alternatively, the three components—the first support 1 and the second support 2, the upper part of the first support 1, the upper part of the second support 2, and the lower part of the side frame 3—are rotatably connected around the same axis. Specifically, the upper part of the first support 1 and the lower part of the side frame 3 are rotatably connected to the upper part of the second support 2, respectively. The support frame 5 and the second bracket 2 are intersected and rotatably connected at the intersection; the bottom support assembly also includes a connecting frame 6, which is movably connected between the lower part of the first bracket 1 and the support frame 5. Here, the front part of the connecting frame 6 is rotatably connected to the first bracket 1, and the rear part of the connecting frame 6 is rotatably connected to the lower part of the support frame 5. A four-bar linkage is formed between the first bracket 1, the second bracket 2, the connecting frame 6 and the support frame 5, so that when the support frame 5 is flipped backward, it can drive the first bracket 1 and the second bracket 2 to retract in the front-back direction.

[0040] Referring to the accompanying drawings, in this embodiment, the carrier frame is provided with a support crossbar 52, which is specifically mounted on the support frame 5. When the carrier is in the unfolded state, the backrest 82 is supported on the front side of the support crossbar 52, and the support crossbar 52 forms a rigid support behind the backrest 82. When the carrier is in the folded state, the backrest 82 can be flipped over and folded behind the support crossbar 52, and the support crossbar 52 does not obstruct the folding process of the backrest 82.

[0041] The carrier in this embodiment is specifically a trolley, and the various components of the trolley are arranged as follows: See Figure 1 , Figure 2 As shown, the first support 1 includes two first support rods 11 located on the left and right sides and extending vertically, and a first crossbar 12 fixed between the lower parts of the two first support rods 11. The first crossbar 12 can serve as a footrest for the feet of the person sitting on the seat mechanism 8. Each first support rod 11 has a first wheel assembly 10 at its bottom. The second support 2 includes two second support rods 21 located on the left and right sides and extending vertically, and a second crossbar 22 fixed between the lower parts of the two second support rods 21. Two sets of second wheel assemblies 20 are correspondingly installed at the bottom of the two second support rods 21.

[0042] The side frame 3 includes two side support rods 31 located on the left and right sides respectively. An armrest frame 7 is also provided on the side frame 3, which is higher than the seat 81 to provide protective support in front of the body of the person carrying the occupant on the seating mechanism 8. The upper support 4 is a U-shaped frame with its opening facing downwards. This upper support 4 serves as a push rod frame, having two push rods 41 located on the left and right sides respectively. A canopy rod 42 is also rotatably connected to the upper support 4. The support frame 5 has two support rods 51 located on the left and right sides respectively, and a support crossbar 52 fixed between the two support rods 51. A basket rod 9 extending rearward is also provided on the support frame 5. The connecting frame 6 has two connecting rods 61 located on the left and right sides respectively. Corresponding connections are formed between the first support rod 11, the second support rod 21, the side support rod 31, the push rod 41, the support rod 51, and the connecting rod 61 on the left and right sides of the trolley.

[0043] In the seating mechanism 8, the seat 81 includes two seat rods 811 located on the left and right sides and extending in the front-back direction, and a seat plate 812 fixed between the two seat rods 811; each seat rod 811 is provided with a sliding member 83, which is specifically a sliding sleeve slidably fitted on the seat rod 811; each side is provided with a rocker arm 84 and a linkage rod 85; the backrest 82 is plate-shaped and is connected between the first ends 841 of the rocker arms 84 on both sides by a flexible connector.

[0044] The cart is in the unfolded state, such as Figures 1 to 5 As shown, the various rods in the vehicle support are unfolded relative to each other. The trolley is supported on the ground by the first wheel assembly 10 and the second wheel assembly 20. The seat mechanism 8 is in the open state, and the lower part of the backrest 82 is located at the rear of the seat 81. When it is necessary to fold the cart, such as Figures 6 to 9 As shown, the operator flips the upper support 4 forward, causing the side frame 3 and support frame 5 to flip backward and downward relative to the second support 2. This causes the rear of the seat 81 to move downward, while the distance between the first pivot 101 and the second pivot 102 gradually increases, causing the slider 83 to move towards the front of the seat 81. This drives the rocker arm 84 to flip, further causing the lower part of the backrest 82 to move forward. After the backrest 82 moves forward to a certain position, under the action of its own weight, the backrest 82 flips backward relative to the rocker arm 84, as shown. Figures 10 to 13 As shown, the backrest 82 is switched to a position with the bottom facing up and the bottom facing down, and together with the rods on the vehicle support, it retracts in the front-to-back direction.

[0045] The stroller in its folded state, such as Figures 14 to 17 As shown, when the vehicle frame is folded, the seat mechanism 8 is also folded between the rods of the vehicle frame, and the backrest 82 is folded into the vehicle frame along its entire length and does not protrude from the vehicle frame. The trolley structure is compact and occupies less space when folded.

[0046] Example 2 See Figures 18 to 20 The vehicle shown is the vehicle of Embodiment 2. The main difference between Embodiment 2 and Embodiment 1 is that the swing arm 84 is rotatably arranged relative to the sliding member 83 about the rotation center line X0; the linkage rod 85 in the linkage assembly is movably connected between the seat 81 and the swing arm 84 so as to drive the swing arm 84 to rotate relative to the sliding member 83 about the rotation center line X0 when the sliding member 83 slides forward along the seat 81.

[0047] Specifically, the rocker arm 84 also has a second end 842. The first end 841 and the second end 842 are located on opposite sides of the rotation center line X0. The linkage rod 85 is rotatably connected between the seat 81 and the second end 842. The linkage rod 85, the seat 81, the slider 83, and the rocker arm 84 constitute a crank-slider mechanism. Figure 17 As shown, the seat mechanism 8 is in the open state, with the second end 842 located in front of the rotation center line X0, and the linkage 85 is also located in front of the rotation center line X0. When the slider 83 slides forward along the seat 81, it drives the rocker arm 84 to rotate relative to the slider 83 around the rotation center line X0, causing the first end 841 of the rocker arm 84 to drive the lower part of the backrest 82 to move forward, thereby further causing the backrest 82 and the seat 81 to close together.

[0048] In other embodiments, the vehicle may also be a dining chair or other seating.

[0049] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art. In the event of any contradiction or inconsistency between the definitions used herein and those contained in other published documents, the definitions used herein shall prevail.

[0051] It should also be noted that "rotational connection" in the above embodiments refers to pivot connection, unless the context clearly indicates other rotational connection methods.

[0052] As indicated in this specification and claims, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0053] It can be further understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0054] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0055] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A seating mechanism, characterized in that: The seating mechanism includes a seat, a backrest, a slider, and a linkage component. The slider is slidably disposed on the seat in a front-back direction. The linkage component is movably connected between the slider, the seat, and the backrest so as to drive the lower part of the backrest to move forward when the slider moves forward along the seat.

2. The seating mechanism according to claim 1, characterized in that: The linkage component includes a rocker arm, the lower part of the backrest is movably connected to the first end of the rocker arm and is rotatably disposed relative to the rocker arm, wherein, as the slider moves forward along the seat, the first end moves forward relative to the seat.

3. The seating mechanism according to claim 2, characterized in that: The lower part of the backrest is rotatably connected to the rocker arm, or the lower part of the backrest is connected to the rocker arm via a flexible connector.

4. The seating mechanism according to claim 2, characterized in that: The swing arm is rotatably connected to the seat or the sliding member around the rotation center line. When the seat mechanism is in the open state, the first end is located behind the rotation center line. During the back-and-forth rotation of the swing arm around the rotation center line, the lower part of the backrest moves forward and upward.

5. The seating mechanism according to claim 4, characterized in that: The swing arm is rotatably connected to the seat about the rotation center line. The linkage assembly also includes a linkage rod that is movably connected between the slider and the swing arm to drive the swing arm to flip relative to the seat about the rotation center line when the slider slides forward along the seat.

6. The seating mechanism according to claim 5, characterized in that: One end of the linkage rod is rotatably connected to the swing rod about a first center line, and the other end of the linkage rod is both rotatable and slidable relative to the sliding member about a second center line; or, one end of the linkage rod is both rotatable and slidable relative to the swing rod about a first center line, and the other end of the linkage rod is rotatably connected to the sliding member about a second center line. When the seat mechanism is in the open state, the first center line is located between the rotation center line and the first end point in the length extension direction of the swing arm.

7. The seating mechanism according to claim 6, characterized in that: One end of the linkage rod is rotatably connected to the swing rod around the first center line; a sliding groove is provided on the other end of the linkage rod, and a connecting shaft is provided on the sliding member. The connecting shaft is slidably inserted in the sliding groove, and the axis of the connecting shaft constitutes the second center line.

8. The seating mechanism according to claim 2, characterized in that: The rocker arm is rotatable relative to the slider about the rotation center line. The linkage assembly also includes a linkage rod movably connected between the seat and the rocker arm to drive the rocker arm to rotate relative to the slide member about the rotation center line when the slider slides forward along the seat.

9. The seating mechanism according to claim 8, characterized in that: The swing arm also has a second end, with the first end and the second end located on opposite sides of the rotation center line, and the linkage rod rotatably connected between the seat and the second end.

10. The seating mechanism according to claims 1 to 9, characterized in that: The backrest has a first surface and a second surface located on opposite sides in the thickness direction, and the seat has a sitting surface. When the seat mechanism is in the open state, the seat and the backrest are unfolded opposite each other, and a support space is formed between the first surface and the seat upright to provide support; when the seat mechanism is in the folded state, the backrest and the seat are folded together, and the second surface faces the seat upright.

11. A vehicle having an unfolded state and a folded state, characterized in that: The vehicle includes a vehicle support frame and a seating mechanism disposed on the vehicle support frame as described in any one of claims 1 to 10.

12. The vehicle according to claim 11, characterized in that: The vehicle support is provided with a support crossbar. When the vehicle is in the unfolded state, the backrest is supported on the front side of the support crossbar. When the vehicle is in the folded state, the backrest flips over and folds to the rear side of the support crossbar.

13. The vehicle according to claim 11, characterized in that: The sliding member is rotatably connected to the vehicle frame about a first pivot, and the rear of the seat is rotatably connected to the vehicle frame about a second pivot. During the transition of the vehicle from an unfolded state to a folded state, the rear of the seat moves downward and the distance between the first pivot and the second pivot increases, causing the seat and the backrest to extend vertically and fold together in the front-back direction.

14. The vehicle according to claim 13, characterized in that: The vehicle support includes: Foldable base support assembly; Side frame, the lower part of which is rotatably connected to the base support assembly; The upper support is rotatably connected to the upper part of the side frame; A support frame, rotatably connected between the bottom support assembly and the lower part of the upper support. The sliding member is rotatably connected to the side frame around the first pivot, and the rear of the seat is rotatably connected to the support frame around the second pivot. When the vehicle is converted from an unfolded state to a folded state, the side frame and the support frame flip backward and downward, causing the seat mechanism to fold between the vehicle brackets.

15. The vehicle according to claim 14, characterized in that: The base support assembly includes a first support and a second support. Two of the upper parts of the first support, the upper parts of the second support, and the lower parts of the side frame are rotatably connected, and the third part is rotatably connected to one of the aforementioned two. Alternatively, the upper parts of the first support, the upper parts of the second support, and the lower parts of the side frame are rotatably connected about the same axis. The support frame and the second support intersect each other and are rotatably connected at the intersection. The base support assembly also includes a connecting frame, which is movably connected between the lower parts of the first support and the support frame.

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