Portable comfortable seat

Abstract

The application relates to a portable comfortable seat, which can adjust the angle between a leaning assembly and a cushion assembly when in use, so that the leaning assembly is at a proper inclination angle, and the user is in a comfortable sitting posture; meanwhile, the angle between a headrest assembly and the leaning assembly can be adjusted to meet the headrest demand. In addition, the supporting assembly can be unfolded from the cushion assembly, so that the user's legs can be supported on the supporting assembly. The design can effectively meet the support conditions of different sitting postures of the user and improve the comfortable demand of the user in rest. When carrying, the headrest assembly can be folded on the leaning assembly; the supporting assembly and the leaning assembly are respectively folded on the cushion assembly, so that all the assemblies are concentrated on the cushion assembly; finally, the folded headrest assembly, the leaning assembly, the cushion assembly and the supporting assembly can be folded along a folding line, the volume of the portable comfortable seat is further reduced, and the carrying convenience of the seat is greatly improved.

Description

Technical Field

[0001] This application relates to the field of seating technology, and in particular to portable and comfortable seating. Background Technology

[0002] Existing seating is primarily used in fixed, limited settings. However, during daily commutes, long-distance travel, and leisure trips, people often encounter situations where public seating is too small, lacks back support, or is simply unavailable, preventing them from finding comfortable rest when needed. Furthermore, traditional portable seating remains bulky and difficult to carry when folded, and offers limited support, failing to meet the need for comfortable rest. Utility Model Content

[0003] Therefore, it is necessary to provide a portable and comfortable seat that effectively balances portability and comfort.

[0004] This application provides a portable and comfortable seat with a fold line along its width. The seat includes: a seat cushion assembly; a support assembly and a backrest assembly, respectively disposed at both ends of the seat cushion assembly along its length. The support assembly can be folded or unfolded on one side of the seat cushion assembly along its thickness to support the legs. The angle between the backrest assembly and the seat cushion assembly is adjustable, and it can be rotatably folded or unfolded on the other side of the seat cushion assembly along its thickness. A headrest assembly has an adjustable angle with the end of the backrest assembly away from the seat cushion assembly, and it can be rotatably folded or unfolded on the backrest assembly. The seat cushion assembly, the support assembly, the backrest assembly, and the headrest assembly can all be folded or unfolded along the fold line.

[0005] The aforementioned portable and comfortable seating allows users to adjust the angle between the backrest and seat cushion components during use, positioning the backrest at a suitable tilt angle for a comfortable sitting posture. Simultaneously, the angle between the headrest and backrest components can be adjusted to meet different headrest needs. Furthermore, the support component can be unfolded from the seat cushion component, allowing the user's legs to rest on it. This design effectively meets the support requirements of users with different sitting postures, enhancing their rest comfort. For carrying, the headrest component can be folded onto the backrest component; then, the support and backrest components can be folded onto the seat cushion component, concentrating all components on the seat cushion component. Finally, the folded headrest, backrest, seat cushion, and support components can be folded along the fold line, further reducing the size of the portable and comfortable seating and greatly improving its portability.

[0006] In some embodiments, the portable comfort seat further includes an angle adjustment assembly, which includes an adjustment member and a mating structure. The adjustment member is disposed on the headrest assembly, and the mating structure is disposed on the backrest assembly. The adjustment member and the mating structure cooperate to adjust the angle between the headrest assembly and the backrest assembly, and to allow the headrest assembly to be stacked on the backrest assembly.

[0007] In some embodiments, an adjustment groove is provided at the end of the backrest assembly away from the seat cushion assembly. The mating structure includes a support shaft and a plurality of positioning protrusions on the groove wall of the adjustment groove. Each positioning protrusion is located below the support shaft and is distributed at intervals along the depth of the adjustment groove. The positioning protrusions are provided with positioning holes facing the back of the backrest assembly. When the adjusting member is inserted into the positioning hole, the headrest assembly part abuts against the side of the support shaft facing the front of the backrest assembly. When the adjusting member abuts against the surface of the support shaft and rotates around the axis of the support shaft, the headrest assembly overlaps the back of the backrest assembly.

[0008] In some embodiments, the mating structure further includes an abutment portion disposed on the groove wall of the adjustment groove, the abutment portion being located on the side of the support shaft away from the positioning protrusion, and a guide channel communicating with the positioning hole is formed between the support shaft and the positioning protrusion. When the adjustment member abuts against the abutment portion facing the front of the backrest assembly, the headrest assembly overlaps the back of the backrest assembly.

[0009] In some embodiments, the support shaft is rotatably mounted on the wall of the adjustment groove, and the surface of the support shaft is provided with a movable groove. The headrest assembly is partially engaged in the movable groove and can move in a direction perpendicular to the axis of the support shaft.

[0010] In some embodiments, the cushion assembly includes two first support members spaced apart side by side, two cushion members disposed between the two first support members, the two cushion members being rotatably connected and foldable or openable along the fold line, a backrest assembly disposed on the cushion member or the first support member, and a support assembly disposed on the end of the first support member away from the backrest assembly.

[0011] In some embodiments, the support assembly includes two parallel and spaced second supports and a support member disposed between the two second supports. The two support members are rotatably connected and can be folded or opened along the fold line. The second support member is disposed on the cushion assembly and can move along the length direction of the cushion assembly.

[0012] In some embodiments, the leaning assembly includes two third support members, a first flexible member, and two connecting members. The two third support members are disposed on the cushion assembly, and the two connecting members are connected between the ends of the two third support members. The two connecting members are rotatably connected to each other and can be folded or opened along the fold line. The first flexible member is disposed between each of the third support members and each of the connecting members.

[0013] In some embodiments, the portable comfort seat further includes a fixing component and a support member. The fixing component is connected to the end of the seat cushion assembly away from the support component and is movable along the length of the seat cushion assembly. The fixing component can be folded or opened along the fold line. The support member is rotatably connected between the fixing component and the backrest assembly. The support member is configured to have an adjustable connection position on the fixing component and / or the backrest assembly, or to have a telescopic function along its own length.

[0014] In some embodiments, the support member has a slot extending along its own length, and the connection position of the support member on the backrest assembly is adjustable. When the backrest assembly rotates and overlaps on the cushion assembly, the slot engages with a portion of the backrest assembly, and when the fixing assembly moves along the length of the cushion assembly, the connection position of the backrest assembly on the cushion assembly is located at the end of the slot away from the backrest assembly.

[0015] In some embodiments, the portable comfort seat further includes a folding structure, wherein the seat cushion assembly, the support assembly, and the backrest assembly are each provided with the folding structure at their respective fold lines, and the seat cushion assembly, the support assembly, and the backrest assembly are all folded or opened through the folding structure.

[0016] In some embodiments, the folding structure includes a first seat, a second seat, a first connecting rod, and a second connecting rod. The first connecting rod and the second connecting rod are rotatably connected between the first seat and the second seat at intervals, and both are of equal length. When the folding structure is in the open state, the end of the first seat abuts against the end of the second seat, and the first connecting rod and the second connecting rod are distributed in parallel and offset in the width direction of the portable comfort seat. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a fully unfolded seating unit as described in some embodiments of this application.

[0018] Figure 2 This is a schematic diagram of the structure of the seat after being stacked but before being folded in half, as described in some embodiments of this application.

[0019] Figure 3 This is a schematic diagram of the structure of the folded seat described in some embodiments of this application.

[0020] Figure 4 This is a structural diagram showing the headrest assembly, angle adjustment assembly, and leaning assembly as described in some embodiments of this application.

[0021] Figure 5 This is an enlarged view of the structure of the adjustment groove on the connector described in some embodiments of this application.

[0022] Figure 6 This is a structural schematic diagram of the fourth support member described in some embodiments of this application.

[0023] Figure 7 This is a schematic diagram of the structure of the headrest assembly stacked on the backrest assembly as described in some embodiments of this application.

[0024] Figure 8 This is a schematic diagram of the folded structure in the open state as described in some embodiments of this application.

[0025] Figure 9 This is a schematic diagram of the folded structure in the folded state as described in some embodiments of this application.

[0026] 100. Seating; 110. Fold line; 10. Seat cushion assembly; 11. First support member; 12. Seat cushion component; 13. Receiving recess; 20. Backrest assembly; 21. Third support member; 22. First flexible component; 23. Connector; 24. Front; 25. Back; 30. Support assembly; 31. Second support member; 32. Support member; 40. Headrest assembly; 41. Fourth support member; 42. Second flexible component; 43. Guide block; 50. Angle adjustment assembly; 51. Adjustment component; 52. Mating structure; 521. Support shaft 52a. Moving groove; 522. Positioning protrusion; 52b. Positioning hole; 523. Guide channel; 524. Abutment part; 53. Adjustment groove; 60. Fixing component; 61. Fifth support member; 62. Fixing member; 63. Support member; 631. Slot; 70. Folding structure; 71. First seat; 711. First mounting groove; 712. Second mounting groove; 72. Second seat; 721. Third mounting groove; 722. Fourth mounting groove; 73. First connecting rod; 74. Second connecting rod; 75. Arc part; X, width direction. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not 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.

[0029] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0033] In some embodiments, please refer to Figures 1 to 3 This application provides a portable and comfortable seat 100, which has a fold line 110 along its width direction X. It includes: a seat cushion assembly 10; a support assembly 30 and a backrest assembly 20, which are respectively disposed at both ends of the seat cushion assembly 10 along its length direction. The support assembly 30 can be folded or unfolded on one side of the seat cushion assembly 10 along its thickness direction to support the legs; the angle between the backrest assembly 20 and the seat cushion assembly 10 is adjustable, and it can be rotatably folded or unfolded on the other side of the seat cushion assembly 10 along its thickness direction; and a headrest assembly 40, the angle between the headrest assembly 40 and the end of the backrest assembly 20 away from the seat cushion assembly 10 is adjustable, and it can be rotatably folded or unfolded on the backrest assembly 20. The seat cushion assembly 10, the support assembly 30, the backrest assembly 20 and the headrest assembly 40 can all be folded or unfolded along the fold line 110.

[0034] The aforementioned portable and comfortable seat 100 allows users to adjust the angle between the backrest component 20 and the seat cushion component 10 during use, positioning the backrest component 20 at a suitable tilt angle to ensure a comfortable sitting posture. Simultaneously, the angle between the headrest component 40 and the backrest component 20 can also be adjusted to meet headrest requirements. Furthermore, the support component 30 can be extended from the seat cushion component 10, allowing the user's legs to rest on it. This design effectively meets the support requirements of users in different sitting postures, enhancing user comfort during rest. When carrying, the headrest assembly 40 can be folded onto the backrest assembly 20; then the support assembly 30 and the backrest assembly 20 can be folded onto the seat cushion assembly 10 respectively, so that all the components are concentrated on the seat cushion assembly 10; finally, the folded headrest assembly 40, backrest assembly 20, seat cushion assembly 10 and support assembly 30 can be folded along the fold line 110 to further reduce the size of the portable and comfortable seat 100 and greatly improve the convenience of carrying the seat 100.

[0035] It should be noted that when carrying, the support component 30 can be folded onto one side of the seat cushion assembly 10, and the backrest component 20 can be folded onto the other side of the seat cushion assembly 10. This avoids the support component 30 and the backrest component 20 being folded onto the same side of the seat cushion assembly 10, which would result in a poor folding effect. The folding of the support component 30 onto the seat cushion assembly 10 can be achieved by rotation or by movement. When the support component 30 is fixed to one end of the seat cushion assembly 10 by rotation, such as through a hinge, pin, or shaft hole engagement, the support component 30 can be rotated to fold onto the seat cushion assembly 10. Meanwhile, there are multiple ways to adjust the angle between the backrest component 20 and the seat cushion component 10. For example, the angle of the backrest component 20 can be adjusted by hinge; or, during adjustment, the seat cushion component 10 can be moved outward a certain distance to provide more rotation space for the backrest component 20, allowing it to rotate and rest against the support structure, such as against the back of the seat. It is understood that the seat 100 of this embodiment can be placed on a seat, giving the seat more adjustment functions to meet different sitting posture needs. Furthermore, "unfolding on one side of the seat cushion component 10 along its own thickness direction" should be understood as unfolding from one side of the seat cushion component 10 along its own thickness direction.

[0036] When the headrest assembly 40 unfolds from the backrest assembly 20, the user's head can rest comfortably on it. Simultaneously, to meet the user's different angle needs, the angle of the headrest assembly 40 on the backrest assembly 20 can be adjusted to raise or lower the head height. There are several ways to adjust the headrest assembly 40 on the backrest assembly 20, such as: the headrest assembly 40 is hinged to the backrest assembly 20; or, a support structure is provided between the headrest assembly 40 and the backrest assembly 20, which supports the headrest assembly 40 at its current angle after adjustment.

[0037] It should also be noted that when the support component 30, the backrest component 20, and the headrest component 40 are stacked on the seat cushion component 10, they can all be folded along the fold line 110 to further reduce the volume of the stacked seat 100 and improve its portability. The fold line 110 refers to the line along the width direction X of the portable comfortable seat 100, where the support component 30, the backrest component 20, and the headrest component 40 are all located. For example, the fold line 110 can be the center line along the width direction X of the portable comfortable seat 100.

[0038] In order to achieve the folding of the support component 30, the backrest component 20 and the headrest component 40, a hinge structure, a rotating connecting rod, or a hinge structure can be provided at the folding line 110 of the support component 30, the backrest component 20 and the headrest component 40 respectively.

[0039] Further, please refer to Figures 4 to 7 The portable comfortable seat 100 also includes an angle adjustment component 50, which includes an adjusting member 51 and a mating structure 52. The adjusting member 51 is disposed on the headrest assembly 40, and the mating structure 52 is disposed on the backrest assembly 20. The adjusting member 51 and the mating structure 52 cooperate to adjust the angle between the headrest assembly 40 and the backrest assembly 20, and can fold the headrest assembly 40 onto the backrest assembly 20. Thus, by utilizing the cooperation of the adjusting member 51 and the mating structure 52, the angle between the headrest assembly 40 and the backrest assembly 20 is changed, allowing the user to better lean against the backrest assembly 20.

[0040] It should be noted that there are multiple ways in which the adjusting component 51 and the mating structure 52 can be mated. For example, in the case of a hinged connection, the adjusting component 51 can be a spring and tooth structure in the hinged structure, and the mating structure 52 can be an arc-shaped rack structure. When rotating, the arc-shaped rack structure drives the tooth structure to elastically expand and contract, so that the tooth structure meshes at different positions on the arc-shaped rack structure. Alternatively, the adjusting component 51 can be designed as a gear, and the mating structure 52 can be a gear ring. When the gear is fitted into the gear ring, the angle between the headrest assembly 40 and the backrest assembly 20 is maintained. During the adjustment process, the gear can be moved axially to disengage from the gear ring. At this time, the gear can be rotated to change the angle between the headrest assembly 40 and the backrest assembly 20. Finally, the gear can be refitted into the gear ring.

[0041] In some embodiments, please refer to Figure 4 and Figure 5 An adjustment groove 53 is provided at the end of the backrest assembly 20 away from the seat cushion assembly 10. The mating structure 52 includes a support shaft 521 and several positioning protrusions 522 on the groove wall of the adjustment groove 53. Each positioning protrusion 522 is located below the support shaft 521 and is distributed at intervals along the depth of the adjustment groove 53. The positioning protrusions 522 are provided with positioning holes 52b with openings facing the back 25 of the backrest assembly 20. When the adjusting member 51 is inserted into the positioning hole 52b, part of the headrest assembly 40 abuts against the side of the support shaft 521 facing the front 24 of the backrest assembly 20. When the adjusting member 51 abuts against the surface of the support shaft 521 and rotates around the axis of the support shaft 521, the headrest assembly 40 overlaps the back 25 of the backrest assembly 20. Therefore, in use, the adjusting member 51 can be inserted into the positioning hole 52b of the positioning protrusion 522, and part of the headrest assembly 40 abuts against the support shaft 521. Since the opening of the positioning hole 52b is set facing the back 25 of the support component 20, when in use, the bottom of the positioning hole 52b will apply a supporting force to the adjustment member 51 on the side facing the back 25 of the support component 20, while the support shaft 521 will apply a supporting force to the headrest assembly 40 on the side facing the front 24 of the support component 20, so that the headrest assembly 40 can support the user's head.

[0042] When angle adjustment is required, since the positioning protrusions 522 are spaced apart along the depth direction of the adjustment groove 53, the angle between the headrest assembly 40 and the backrest assembly 20 is relatively small when the adjusting member 51 is engaged in the positioning hole 52b at the lowest position; and relatively large when the adjusting member 51 is engaged in the positioning hole 52b closest to the support shaft 521. Thus, when adjusting the angle, the adjusting member 51 can be engaged in different positioning holes 52b to adjust the angle between the headrest assembly 40 and the backrest assembly 20. When overlapping is required, the adjusting member 51 can be raised to contact or approach the surface of the support shaft 521 and rotated around the axis of the support shaft 521, causing the headrest assembly 40 to overlap the backrest assembly 20.

[0043] It should be noted that the front 24 of the backrest component 20 refers to the surface of the backrest component 20 that the user can lean on, and the back 25 of the backrest component 20 refers to the surface of the backrest component 20 facing away from the user. To ensure that the adjusting member 51 is stably abutted in the positioning hole 52b, the orientation of the opening of the positioning hole 52b can be designed to be inclined relative to the depth direction of the adjusting groove 53, and along the direction away from the side of the seat cushion component 10. At the same time, positioning protrusions 522 can be provided on both opposite groove walls of the adjusting groove 53, so that both ends of the adjusting member 51 can simultaneously abut in the positioning holes 52b of the two positioning protrusions 522.

[0044] There are various ways to install the adjusting member 51 on the headrest assembly 40, such as by bolting, snapping, riveting, or welding. Specifically, in some examples, the headrest assembly 40 includes two parallel and spaced fourth support members 41. The adjusting member 51 is located at one end of the fourth support member 41. When the adjusting member 51 is engaged in the positioning hole 52b, the fourth support member 41 abuts against the support shaft 521. When the adjusting member 51 rotates around the axis of the support shaft 521, the fourth support member 41 can overlap on the support assembly 20.

[0045] Alternatively, the headrest assembly 40 and the support shaft 521 can be designed without connection; or they can be designed to be linearly slidingly connected. In this way, the headrest assembly 40 can be driven to move linearly relative to the support shaft 521 after rotating through the support shaft 521 to be able to be inserted into the positioning hole 52b, so that the adjustment member 51 can be inserted into different positioning holes 52b.

[0046] It should also be noted that the adjustment groove 53 refers to the recessed space structure formed at the end of the backrest component 20 away from the seat cushion component 10. This space structure can extend through to the backrest component 20's back side 25 along the thickness direction of the backrest component 20, which makes it easy for the adjustment member 51 to be inserted into different positioning holes 52b on the backrest component 20's back side 25.

[0047] Further, please refer to Figure 5 and Figure 7 The mating structure 52 also includes an abutment portion 524 provided on the groove wall of the adjustment groove 53. The abutment portion 524 is located on the side of the support shaft 521 away from the positioning protrusion 522. A guide channel 523 communicating with the positioning hole 52b is formed between the support shaft 521 and the positioning protrusion 522. When the adjusting member 51 abuts against the abutment portion 524 towards the front 24 of the backrest assembly 20, the headrest assembly 40 overlaps with the back 25 of the backrest assembly 20. Thus, during angle adjustment, the adjusting member 51 can be rotated into the guide channel 523 and moved into the positioning hole 52b under the action of the guide channel 523; during overlap, the adjusting member 51 can be moved to contact or approach the surface of the support shaft 521, at which time the adjusting member 51 can be in the guide channel 523; then the adjusting member 51 is rotated around the axis of the support shaft 521, so that the adjusting member 51 rotates to abut against the abutment portion 524. At this time, the headrest assembly 40 and the backrest assembly 20 are stacked together. Thus, the guide channel 523 allows the adjusting member 51 to be stably engaged in the positioning hole 52b, thereby achieving stable angle adjustment; in addition, the abutment part 524 controls the rotational stroke of the adjusting member 51 around the axis of the support shaft 521, and the abutment part 524 also limits its movement, ensuring that the headrest assembly 40 is stably stacked on the backrest assembly 20.

[0048] It should be noted that the abutment portion 524 refers to the protruding structure on the groove wall of the adjusting groove 53. When the adjusting member 51 rotates around the axis of the support shaft 521, it can restrict the continued rotation of the adjusting member 51. The abutment portion 524 can be provided on both opposite groove walls of the adjusting groove 53, so that both ends of the adjusting member 51 abut against the corresponding abutment portion 524.

[0049] In some embodiments, please refer to Figure 4 and Figure 6 The support shaft 521 is rotatably mounted on the wall of the adjustment groove 53, and the surface of the support shaft 521 is provided with a moving groove 52a. The headrest assembly 40 is partially inserted into the moving groove 52a and can move in a direction perpendicular to the axis of the support shaft 521. Therefore, when the moving groove 52a of the support shaft 521 rotates to face the front 24 of the support assembly 20, the headrest assembly 40 can move within the moving groove 52a, allowing the adjusting member 51 to engage with the positioning hole 52b of the positioning protrusion 522. When the moving groove 52a of the support shaft 521 moves to face the back 25 of the support assembly 20, the headrest assembly 40 can be stacked on the back 25 of the support assembly 20. Simultaneously, the introduction of the moving groove 52a also facilitates the stable movement of the adjusting member 51 into the positioning hole 52b, improving the stability of the angle adjustment.

[0050] For specific examples, please refer to Figure 4The headrest assembly 40 includes a fourth support member 41, on which a guide block 43 is provided. An adjusting member 51 is provided at one end of the fourth support member 41. The guide block 43 is engaged in the moving groove 52a and moves in the moving groove 52a in a direction perpendicular to the axis of the support shaft 521.

[0051] In some embodiments, please refer to Figure 1 The seat cushion assembly 10 includes two first support members 11 spaced apart side by side, and two seat cushion members 12 disposed between the two first support members 11. The two seat cushion members 12 are rotatably connected and can be folded or opened along the fold line 110. A backrest assembly 20 is disposed on the seat cushion member 12 or the first support member 11, and a support assembly 30 is disposed at the end of the first support member 11 away from the backrest assembly 20. Therefore, in use, the two seat cushion members 12 can be rotated open so that the user can sit on the two seat cushion members 12; when carrying, the two seat cushion members 12 can be folded along the fold line 110 so that the two seat cushion members 12 are stacked, reducing the volume of the seat 100.

[0052] It should be noted that before folding, the support component 30 and the backing component 20 can be stacked on both sides of the seat cushion component 10 along its own thickness direction. To reduce the thickness of the stack, a receiving recess 13 can be provided between the seat cushion component 12 and the first support component 11. For example, when the backing component 20 is stacked on the seat cushion component 10, the structures on both sides of the backing component 20 along the width direction X of the seat 100 can be respectively inserted into the receiving recess 13.

[0053] Meanwhile, there are multiple ways to rotate the two seat cushion parts 12, such as connecting them through a hinge structure or by using a shaft hole and a pin.

[0054] In addition, the seat cushion 12 can be designed as a rigid material; or it can be a rigid material covered with a flexible material, such as cotton, rubber, or leather. The rigid material can be of various types, such as plastic or metal.

[0055] In some embodiments, please refer to Figure 1The support component 30 includes two parallel and spaced second support members 31 and a support member 32 disposed between the two second support members 31. The two support members 32 are rotatably connected and can be folded or opened along the fold line 110. The second support member 31 is disposed on the seat cushion component 10 and can move along the length direction of the seat cushion component 10. Therefore, in use, the second support member 31 can be moved along the length direction of the seat cushion component 10 to extend outward; then, the two support members 32 can be rotated open to ensure that the user's legs are stably supported on the two support members 32. When carrying, the second support member 31 can be retracted along the length direction of the seat cushion component 10 to overlap the seat cushion component 10; after all components are overlapped on the seat cushion component 10, they can be folded together along the fold line 110.

[0056] It should be noted that there are various designs for the movement of the second support member 31 on the seat cushion assembly 10. For example, a guide protrusion and a guide groove can be provided between the second support member 31 and the seat cushion assembly 10; or, the second support member 31 can pass through the interior of the seat cushion assembly 10, allowing the second support member 31 to move within the seat cushion assembly 10. In some specific examples, the seat cushion assembly 10 includes two parallel and spaced first support members 11, with the second support member 31 slidably disposed on the first support members 11.

[0057] Meanwhile, there are multiple ways to rotate between the two support components 32, such as: they can be connected by a hinge structure; or they can be connected by a shaft hole and a pin.

[0058] In addition, the support component 32 can be designed as a rigid material; or it can be a rigid material covered with a flexible material, such as cotton, rubber, or leather. The rigid material can be of various types, such as plastic or metal.

[0059] In some embodiments, please refer to Figure 1 The support component 20 includes two third support members 21, a first flexible member 22, and two connecting members 23. The two third support members 21 are disposed on the seat cushion component 10, and the two connecting members 23 are connected between the ends of the two third support members 21. The two connecting members 23 are rotatably connected to each other and can be folded or opened along the fold line 110. The first flexible member 22 is disposed between each of the third support members 21 and each of the connecting members 23. Thus, in use, the two connecting members 23 are opened to each other, so that the first flexible member 22 is supported between the two connecting members 23 and the two third support members 21, thereby making the user more comfortable to lean against the first flexible member 22. When carrying, the third support members 21 can be rotated and folded onto the support component 20. Since the first flexible member 22 has a flexible function, after all components are folded onto the seat cushion component 10, they can be folded together along the fold line 110.

[0060] It should be noted that the first flexible component 22 refers to a structure with a certain degree of flexibility, which can be a woven mesh structure, a fabric structure, or a rubber structure. For ease of carrying, the third support component 21 can be designed as a structure with telescopic function. For example, the third support component 21 is a structure of multiple interlocking support rods. When carrying, the multiple support rods can be retracted to reduce the length of the third support component 21.

[0061] Meanwhile, the third support member 21 can be connected to the seat cushion assembly 10 in various ways, such as by hinge, pin and shaft hole, etc.

[0062] Furthermore, there are various ways to rotate the connection between the two connectors 23, such as connecting them through a hinge structure or by using a shaft hole and a pin. When the headrest assembly 40 includes two fourth support members 41 and a second flexible member 42 connected between the two fourth support members 41, the fourth support members 41 are connected to the connectors 23 through an angle adjustment assembly 50.

[0063] In some embodiments, please refer to Figure 1 The portable and comfortable seating 100 also includes a fixing component 60 and a support member 63. The fixing component 60 is connected to the end of the seat cushion assembly 10 away from the support component 30 and can move along the length of the seat cushion assembly 10. The fixing component 60 can be folded or opened along the fold line 110. The support member 63 is rotatably connected between the fixing component 60 and the backrest assembly 20. The support member 63 is configured to have an adjustable connection position on the fixing component 60 and / or the backrest assembly 20, or to have a telescopic function along its own length. Thus, when adjusting the backrest assembly 20, the fixing component 60 can be moved along the length of the seat cushion assembly 10, causing the fixing component 60 to extend. In this way, when the seating 100 is placed on the seat, the seat cushion assembly 10 is equivalent to moving outward, giving the backrest assembly 20 more room to rotate. At this time, after rotating the backrest assembly 20 to a suitable angle, the support member 63 can be placed between the backrest assembly 20 and the fixing component 63, so that the backrest assembly 20 is held at the desired angle position. Furthermore, since the connection position of the support member 63 on the fixing component 60 and / or the leaning component 20 is adjustable, or the support member 63 is a telescopic structure, when carrying and folding, the connection position or length of the support member 63 can be adjusted so that the leaning component 20 and the fixing component 60 can be stacked on the seat cushion component 10.

[0064] It should be noted that when the connection position of the support member 63 on the fixed component 60 and / or the supporting component 20 is adjustable, the connection position of the support member 63 on the fixed component 60 or the supporting component 20 can be changed, so that the support member 63 can be stably supported between the fixed component 60 and the supporting component 20. The adjustable connection position of the support member 63 on the fixed component 60 or the supporting component 20 can be achieved in several ways. For example, a sleeve can be slidably fitted onto the fixed component 60 or the supporting component 20 and locked with bolts, allowing the support member 63 to be rotatably connected to the sleeve; or, a groove that mates with a slider can be provided on the fixed component 60 or the supporting component 20, allowing the slider to be locked with bolts, and allowing the support member 63 to be rotatably connected to the slider.

[0065] When the support member 63 is designed as a telescopic structure, if the angle between the abutment component 20 and the fixed component 60 increases, the support member 63 can be extended to support the abutment component 20; if the angle between the abutment component 20 and the fixed component 60 decreases, the support member 63 can be shortened to support the abutment component 20. In this case, when carrying and folding, the length of the support member 63 can be adaptively extended or retracted according to the folding requirements of each component.

[0066] Meanwhile, the design for the moving component 60 along the length of the seat cushion assembly 10 can be varied. For example, a guide protrusion and a guide groove can be provided between the fixing component 60 and the seat cushion assembly 10; or, the fixing component 60 can be inserted inside the seat cushion assembly 10, allowing it to move within the seat cushion assembly 10. The length of the seat cushion assembly 10 can be understood as the direction from the end of the seat cushion assembly 10 near the abutment component 20 to the end of the seat cushion assembly 10 near the support component 30. For easier understanding, please refer to [reference needed]. Figure 1 The length direction of the seat cushion assembly 10 is Figure 1 The direction indicated by L in the middle.

[0067] It should also be noted that the fixing component 60 can also be folded along the fold line 110. Therefore, after the backrest component 20, support component 30, headrest component 40, and fixing component 60 are all stacked on the seat cushion component 10, the fixing component 60 can be folded along the fold line 110. Specifically, in some examples, the fixing component 60 includes two parallel and spaced fifth support members 61 and two fixing members 62 disposed on the two fifth support members 61. The two fixing members 62 can be folded along the fold line 110. Each fifth support member 61 is slidably disposed on the seat cushion component 10, and the support member 63 is rotatably connected between the backrest component 20 and the fifth support member 61 or the fixing member 62.

[0068] Further, please refer to Figure 1The support member 63 has a slot 631 extending along its length. The connection position of the support member 63 on the backrest assembly 20 is adjustable. When the backrest assembly 20 is rotated and folded onto the seat cushion assembly 10, the slot 631 engages with a portion of the backrest assembly 20. Furthermore, when the fixing assembly 60 moves along the length of the seat cushion assembly 10, the connection position of the backrest assembly 20 on the seat cushion assembly 10 is located at the end of the slot 631 furthest from the backrest assembly 20. Therefore, when carrying or folding the cushion, the connection position of the support member 63 on the backrest assembly 20 can be released, allowing one end of the support member 63 to move on the backrest assembly 20. In this way, the backrest assembly 20 can be rotated and folded onto the seat cushion assembly 10, and the support member 63 can be engaged with the backrest assembly 20 through the slot 631. Next, the fixing component 60 is moved so that it overlaps with the seat cushion component 10, and the support component 63 overlaps completely or almost completely with the backrest component 20. At this time, the connection between the backrest component 20 and the seat cushion component 10 is also covered in the slot 631, making the folded structure more compact and smaller in size.

[0069] For specific examples, please refer to Figure 1 The support component 20 includes two third support members 21, a first flexible member 22, and two connecting members 23. The two third support members 21 are rotatably connected to the seat cushion assembly 10, and the connection position of the support member 63 on the third support member 21 is adjustable. When the third support member 21 is stacked on the seat cushion assembly 10, the support member 63 is engaged with the third support member 21 through the slot 631, and the connection structure between the third support member 21 and the seat cushion assembly 10 is located at one end of the slot 631 by moving the fixing component 60, that is, the connection structure between the third support member 21 and the seat cushion assembly 10 overlaps with the connection structure between the support member 63 and the fixing component 60.

[0070] The connection between the third support member 21 and the seat cushion assembly 10 can be achieved in various ways, such as hinge, pin and shaft hole connection, etc. Meanwhile, the connection between the support member 63 and the fixing assembly 60 allows the two groove walls of the slot 631 to be rotatably connected to the fixing assembly 60. This ensures that when folded or carried, the connection structure between the third support member 21 and the seat cushion assembly 10 can overlap with the connection structure between the support member 63 and the fixing assembly 60.

[0071] In some embodiments, please refer to Figure 1 The portable and comfortable seating 100 also includes a folding structure 70. The seat cushion assembly 10, support assembly 30, and backrest assembly 20 each have a folding structure 70 at their respective fold lines 110. The seat cushion assembly 10, support assembly 30, and backrest assembly 20 can all be folded or unfolded using the folding structure 70. Therefore, the introduction of the folding structure 70 facilitates the folding of the seat cushion assembly 10, support assembly 30, backrest assembly 20, and headrest assembly 40 along the fold lines 110, improving the ease of folding.

[0072] It should be noted that when the leaning component 20 is angled with the supporting component 63 via the fixing component 60, the fixing component 60 can also be provided with a folding structure 70 at the fold line 110, using the folding structure 70 to fold along the fold line 110. The folding structure 70 can have various designs, such as a hinge structure or a connection via a linkage.

[0073] Further, please refer to Figure 8 and Figure 9 The folding structure 70 includes a first seat 71, a second seat 72, a first connecting rod 73, and a second connecting rod 74. The first connecting rod 73 and the second connecting rod 74 are rotatably connected between the first seat 71 and the second seat 72 at intervals, and both are of equal length. When the folding structure 70 is in the open state, the end of the first seat 71 abuts against the end of the second seat 72, and the first connecting rod 73 and the second connecting rod 74 are parallel to each other and offset in the width direction X of the portable comfort seat 100. Therefore, connecting the first connecting rod 73 and the second connecting rod 74 of equal length between the first seat 71 and the second seat 72 can form a parallelogram-like structure. Thus, when folded, the first seat 71 can be stacked on top of the second seat 72 through the first connecting rod 73 and the second connecting rod 74. When the folding structure 70 is in the open state, the first link 73 and the second link 74 are parallel and misaligned in the width direction X of the portable comfort seat 100. Therefore, after the first seat 71 is stacked on the second seat 72, the first link 73 and the second link 74 are arranged in a cross configuration, ensuring that the first seat 71 and the second seat 72 are stably stacked, preventing them from becoming loose, and improving the stability of the structure. At the same time, after folding, the first link 73 and the second link 74 are crossed, which facilitates the alignment of the ends of the first seat 71 and the ends of the second seat 72.

[0074] It should be noted that, to ensure smooth folding, when the folding structure 70 is in the open state, both the first seat 71 and the second seat 72 have arc-shaped portions 75 at their respective facing ends. In this way, when rotating and folding, the arc-shaped portions 75 between the first seat 71 and the second seat 72 cooperate with each other, making the folding smoother.

[0075] Meanwhile, to ensure a stable connection between the first connecting rod 73 and the second connecting rod 74, one end of the first base 71 is provided with a first mounting groove 711 and a second mounting groove 712, and one end of the second base 72 is provided with a third mounting groove 721 and a fourth mounting groove 722. The first mounting groove 711 corresponds to the third mounting groove 721, and the depth of the first mounting groove 711 is greater than the depth of the third mounting groove 721; the second mounting groove 712 corresponds to the fourth mounting groove 722, and the depth of the second mounting groove 712 is less than the depth of the fourth mounting groove 722. The first connecting rod 73 is rotatably connected within the first mounting groove 711 and the third mounting groove 721, and the second connecting rod 74 is rotatably connected within the second mounting groove 712 and the fourth mounting groove 722. It is easy to understand that the lengths of the first link 73 and the second link 74 are equal. The emphasis is that the distance between the connection position of the first link 73 to the connection position of the first link 73 to the connection position of the second link 74 to the connection position of the second link 74 to the connection position of the second link 74 to the connection position of the second link 74 to the connection position of the second link 74 to the second link 72.

[0076] It should also be noted that the parallel misalignment of the first link 73 and the second link 74 in the width direction X of the portable comfort seat 100 should be understood as follows: the connection positions of the first link 73 and the second link 74 on the first seat 71 are inconsistent along the width direction X, and the connection positions of the first link 73 and the second link 74 on the second seat 72 are also inconsistent along the width direction X. For example, in the width direction X of the seat 100, the distance between the connection position of the first link 73 on the first seat 71 and the end of the first seat 71 is greater than the distance between the connection position of the second link 74 on the first seat 71 and the end of the first seat 71; the distance between the connection position of the first link 73 on the second seat 72 and the end of the second seat 72 is less than the distance between the connection position of the second link 74 on the second seat 72 and the end of the second seat 72. Since the first link 73 and the second link 74 are of equal length, the distance difference between the two ends of the first link 73 and the two ends of the second link 74 is also equal.

[0077] Because the first link 73 and the second link 74 are parallel and misaligned in the width direction X of the portable comfort seat 100, when the first seat 71 and the second seat 72 are stacked, the first link 73 is relatively inward at its connection position in the first seat 71, and the second link 74 is relatively outward at its connection position in the first seat 71; the first link 73 is relatively outward at its connection position in the second seat 72, and the second link 74 is relatively inward at its connection position in the second seat 72, thus making the first link 73 and the second link 74 appear to be in a crossed state. Of course, in some other embodiments, when the first seat 71 and the second seat 72 are stacked, the first link 73 is relatively outward at its connection position in the first seat 71, and the second link 74 is relatively inward at its connection position in the first seat 71; the first link 73 is relatively inward at its connection position in the second seat 72, and the second link 74 is relatively outward at its connection position in the second seat 72.

[0078] In addition, the two ends of the first seat 71 and the second seat 72 that are far apart from each other can be respectively located in the seat cushion assembly 10, the support assembly 30, the backrest assembly 20, the headrest assembly 40, and the fixing assembly 60. For example: the two ends of the first seat 71 and the second seat 72 that are far apart from each other are respectively connected to the two seat cushion pieces 12 of the seat cushion assembly 10; the two ends of the first seat 71 and the second seat 72 that are far apart from each other are respectively connected to the two connecting pieces 23 of the backrest assembly 20; the two ends of the first seat 71 and the second seat 72 that are far apart from each other are respectively connected to the two support pieces 32 of the support assembly 30; and the two ends of the first seat 71 and the second seat 72 that are far apart from each other are respectively connected to the two fixing pieces 62 of the fixing assembly 60.

[0079] 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.

[0080] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A portable and comfortable seating device, characterized in that, The portable and comfortable seating has a fold line (110) along its width direction (X), and includes: Seat cushion assembly (10); The support component (30) and the backrest component (20) are respectively disposed at both ends of the seat cushion component (10) along its own length direction. The support component (30) can be folded or unfolded on one side of the seat cushion component (10) along its own thickness direction to support the legs. The angle between the backrest component (20) and the seat cushion component (10) is adjustable, and it can be rotatably folded or unfolded on the other side of the seat cushion component (10) along its own thickness direction. The headrest assembly (40) is adjustable at an angle to the end of the backrest assembly (20) away from the seat cushion assembly (10), and can be rotated to fold or unfold on the backrest assembly (20). The seat cushion assembly (10), the support assembly (30), the backrest assembly (20) and the headrest assembly (40) can all be folded or unfolded along the fold line (110).

2. The portable and comfortable seating according to claim 1, characterized in that, The portable and comfortable seat also includes an angle adjustment component (50), which includes an adjustment member (51) and a mating structure (52). The adjustment member (51) is disposed on the headrest assembly (40), and the mating structure (52) is disposed on the backrest assembly (20). The adjustment member (51) and the mating structure (52) cooperate to adjust the angle between the headrest assembly (40) and the backrest assembly (20), and can stack the headrest assembly (40) on the backrest assembly (20).

3. The portable and comfortable seating according to claim 2, characterized in that, The backrest assembly (20) has an adjustment groove (53) at one end away from the seat cushion assembly (10). The mating structure (52) includes a support shaft (521) and a plurality of positioning protrusions (522) on the groove wall of the adjustment groove (53). Each positioning protrusion (522) is located below the support shaft (521) and is distributed at intervals along the depth of the adjustment groove (53). The positioning protrusion (522) has a positioning hole (52b) with the opening facing the back (25) of the backrest assembly (20). When the adjusting member (51) is engaged in the positioning hole (52b), the headrest assembly (40) partially abuts against the side of the support shaft (521) facing the front (24) of the backrest assembly (20). When the adjusting member (51) abuts against the surface of the support shaft (521) and rotates about the axis of the support shaft (521), the headrest assembly (40) overlaps the back (25) of the backrest assembly (20).

4. The portable and comfortable seating according to claim 3, characterized in that, The mating structure (52) further includes an abutment portion (524) disposed on the groove wall of the adjusting groove (53). The abutment portion (524) is located on the side of the support shaft (521) away from the positioning protrusion (522). A guide channel (523) communicating with the positioning hole (52b) is formed between the support shaft (521) and the positioning protrusion (522). When the adjusting member (51) abuts against the abutment portion (524) facing the front (24) of the backrest assembly (20), the headrest assembly (40) overlaps the back (25) of the backrest assembly (20); and / or, The support shaft (521) is rotatably mounted on the wall of the adjustment groove (53), and the surface of the support shaft (521) is provided with a moving groove (52a). The headrest assembly (40) is partially inserted into the moving groove (52a) and can move in a direction perpendicular to the axis of the support shaft (521).

5. The portable and comfortable seating according to claim 1, characterized in that, The seat cushion assembly (10) includes two first support members (11) spaced apart side by side, and two seat cushion members (12) disposed between the two first support members (11). The two seat cushion members (12) are rotatably connected and can be folded or opened along the fold line (110). The backrest assembly (20) is disposed on the seat cushion member (12) or the first support member (11). The support assembly (30) is disposed at the end of the first support member (11) away from the backrest assembly (20); and / or, The support assembly (30) includes two second support members (31) spaced apart side by side and a support member (32) disposed between the two second support members (31). The two support members (32) are rotatably connected and can be folded or opened along the fold line (110). The second support member (31) is disposed on the cushion assembly (10) and can move along the length direction of the cushion assembly (10).

6. The portable and comfortable seating according to claim 1, characterized in that, The leaning component (20) includes two third support members (21), a first flexible member (22), and two connectors (23). The two third support members (21) are disposed on the cushion component (10), and the two connectors (23) are connected between the ends of the two third support members (21). The two connectors (23) are rotatably connected to each other and can be folded or opened along the fold line (110). The first flexible member (22) is disposed between each of the third support members (21) and each of the connectors (23).

7. The portable and comfortable seating according to any one of claims 1-6, characterized in that, The portable and comfortable seat also includes a fixing component (60) and a support component (63). The fixing component (60) is connected to the end of the seat cushion assembly (10) away from the support component (30) and can move along the length of the seat cushion assembly (10). The fixing component (60) can be folded or opened along the fold line (110). The support component (63) is rotatably connected between the fixing component (60) and the backrest assembly (20). The support component (63) is configured to have an adjustable connection position on the fixing component (60) and / or the backrest assembly (20), or to have a telescopic function along its own length.

8. The portable and comfortable seating according to claim 7, characterized in that, The support member (63) has a slot (631) extending through its length. The connection position of the support member (63) on the backrest assembly (20) is adjustable. When the backrest assembly (20) rotates and overlaps on the cushion assembly (10), the slot (631) engages with a portion of the backrest assembly (20). When the fixing assembly (60) moves along the length of the cushion assembly (10), the connection position of the backrest assembly (20) on the cushion assembly (10) is located at the end of the slot (631) away from the backrest assembly (20).

9. The portable comfortable seating according to any one of claims 1-6, characterized in that, The portable and comfortable seat also includes a folding structure (70). The seat cushion assembly (10), the support assembly (30), and the backrest assembly (20) are all provided with the folding structure (70) at their respective fold lines (110). The seat cushion assembly (10), the support assembly (30), and the backrest assembly (20) are all folded or opened through the folding structure (70).

10. The portable and comfortable seating according to claim 9, characterized in that, The folding structure (70) includes a first base (71), a second base (72), a first connecting rod (73) and a second connecting rod (74). The first connecting rod (73) and the second connecting rod (74) are rotatably connected between the first base (71) and the second base (72) at intervals, and the two are of equal length. When the folding structure (70) is in the open state, the end of the first seat (71) abuts against the end of the second seat (72), the first connecting rod (73) and the second connecting rod (74) are distributed in parallel and are misaligned in the width direction (X) of the portable comfort seat.

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