Sofa with adjustable backrest

Abstract

The utility model discloses a sofa with an adjustable backrest, which relates to the field of sofas and has the technical key points that the sofa comprises a base, a cushion is arranged at the top of the base, a backrest body is arranged at the top of the cushion, a first fixing part is arranged at the bottom of the backrest body, an adjusting cavity is formed in the cushion, and the adjusting cavity is arranged in the adjusting cavity. A first fixing part is arranged at the top of the seat cushion, an adjusting cavity is formed in the top of the seat cushion, a movable seat is slidably connected into the adjusting cavity, a second fixing part is arranged at the top of the movable seat, the first fixing part is detachably connected with the second fixing part, a seat contact surface is arranged at the top of the seat cushion, and the backrest body divides the seat contact surface into a first seat area and a second seat area. The utility model aims to solve the technical problems that most of the placement positions of the existing sofa backrests cannot be adjusted, so that the positions of the backrests cannot be adjusted in the air according to the number of users, and the space cannot be expanded according to the lying posture requirements of the users when the number of the users is small, so that the use of the sofa is limited.

Description

Technical Field

[0001] The utility model relates to the field of sofas, in particular to a sofa with an adjustable backrest. Background Art

[0002] Sofas can be basically divided into ordinary sofas and functional sofas. Ordinary sofas are mostly sofas with wooden feet and cannot be shaken, with a single function. The basic function of functional sofas is to sit, and secondly, they have advantages in storage, structure, and multi-function.

[0003] With the improvement of the quality of life, consumers pay more attention to whether the sofa is good for seat adjustment while considering cost-effectiveness and satisfying basic functions. This requires more and more adjustment functions of the sofa backrest, but the placement of the sofa backrest is mostly not adjustable at present, which makes it impossible to adjust the position of the backrest according to the number of users, and also unable to expand the space according to the user's lying position requirements when the number of users is small, thus limiting the use of the sofa. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, the utility model provides a sofa with an adjustable backrest, aiming to solve the technical problem that the placement position of the current sofa backrest is mostly non-adjustable, resulting in the backrest being unable to be adjusted according to the number of users, and the backrest being unable to be expanded according to the users' lying posture requirements when the number of users is small, thereby limiting the use of the sofa.

[0005] The technical solution of the utility model to solve the above technical problems is:

[0006] A sofa with an adjustable backrest comprises a base, a seat cushion is provided on the top of the base, a backrest body is provided on the top of the seat cushion, a first fixing part is provided on the bottom of the backrest body, an adjustment cavity is provided inside the seat cushion, a movable seat is slidably connected in the adjustment cavity, a second fixing part is provided on the top of the movable seat, the first fixing part and the second fixing part are detachably connected, a seat contact surface is provided on the top of the seat cushion, and the backrest body divides the seat contact surface into a first seat area and a second seat area.

[0007] When there are more users, the movable seat moves to the middle of the adjustment cavity of the cushion, and the first fixed part of the backrest body is fixed to the second fixed part of the movable seat, so that the backrest body is located in the middle of the seat contact surface, making the accommodation space of the first seat area and the second seat area the same, thereby facilitating multiple users to sit in the first seat area and the second seat area to rest; when there are fewer users and a larger space is needed for lying down, the movable seat moves to one side of the adjustment cavity of the cushion, so that the backrest body is located on one side of the seat contact surface, making the accommodation space of the second seat area smaller, so as to provide a larger accommodation space for the first seat area for users to lie down.

[0008] Further, in the present application, the backrest body includes a first backrest support seat and a second backrest support seat, one end of the second backrest support seat is hinged to one end of the first backrest support seat, the number of the first fixing parts is two, and the two first fixing parts are respectively arranged at the bottom of the first backrest support seat and the bottom of the second backrest support seat.

[0009] When the movable seat moves to the middle of the adjustment cavity of the seat cushion, the second backrest support seat is folded to one side of the first backrest support seat, thereby providing support for the backs of users in the first seat area and the second seat area at the same time; if the backrest body is located on one side of the seat contact surface, the second backrest support seat is unfolded upward, so that the first backrest support seat and the second backrest support seat are in a vertical state, thereby providing a larger contact area for the back when there are fewer users, so as to provide better comfort to users when there are fewer users.

[0010] Further, in the present application, the second fixed part includes two groups of first fixed magnets, and the two groups of first fixed magnets are respectively installed on the top of the movable seat, the first fixed part includes a second fixed magnet and a third fixed magnet, the second fixed magnet is installed at the other end of the first backrest support seat, and the second fixed magnet is attracted to any group of the first fixed magnets, and the third fixed magnet is installed at the other end of the second backrest support seat, and the third fixed magnet is attracted to any group of the first fixed magnets.

[0011] When the second backrest support seat is folded to one side of the first backrest support seat, the second fixed magnet and the third fixed magnet are attracted to the two groups of first fixed magnets, thereby facilitating fixing the folded positions of the first backrest support seat and the second backrest support seat.

[0012] Furthermore, in the present application, two groups of first mounting grooves are provided on the top of the movable seat, the height of the first fixed magnet matches the depth of the first mounting groove, and the two groups of the first fixed magnets are respectively installed inside the two rows of the first mounting grooves.

[0013] Further, in the present application, a second mounting groove is provided at the other end of the first backrest support seat, the second fixed magnet is installed in the second mounting groove, the height of the second fixed magnet matches the depth of the second mounting groove, and a third mounting groove is provided at the other end of the second backrest support seat, the third fixed magnet is installed in the third mounting groove, and the height of the third fixed magnet matches the depth of the third mounting groove.

[0014] Further, in the present application, a first backrest pad is provided on one side of the first backrest support seat, and the first backrest pad is elastic; a second backrest pad is provided on one side of the second backrest support seat, and the second backrest pad is elastic.

[0015] Furthermore, the present application also includes a limit strip, wherein a plurality of first fixing holes are opened in the limit strip, a second fixing hole is opened in the outer edge of the first backrest support seat, a first fixing bolt is passed through any of the first fixing holes, and the insertion end of the first fixing bolt is threadedly engaged with the second fixing hole, and a third fixing hole is opened in the outer edge of the second backrest support seat, a second fixing bolt is passed through any of the first fixing holes, and the insertion end of the second fixing bolt is threadedly engaged with the third fixing hole.

[0016] Furthermore, in the present application, a support plate is provided in the adjustment cavity, a sliding groove is provided at the bottom of the movable seat, the top of the support plate is located inside the sliding groove, and the sliding groove is slidably matched with the top of the support plate.

[0017] Furthermore, in the present application, a plurality of first adjustment holes are opened on one side of the support plate, a second adjustment hole is opened on one side of the movable seat, the second adjustment hole is connected to the interior of the sliding groove, a fixing pin is passed through the second adjustment hole, and the fixing pin is plugged into any one of the first adjustment holes.

[0018] Furthermore, in the present application, a movable cavity is opened on one side of the base, and a storage drawer is slidably connected in the movable cavity.

[0019] The utility model has the following beneficial effects:

[0020] When there are more users, the movable seat moves to the middle of the adjustment cavity of the cushion, and the first fixed part of the backrest body is fixed to the second fixed part of the movable seat, so that the backrest body is located in the middle of the seat contact surface, making the accommodation space of the first seat area and the second seat area the same, thereby facilitating multiple users to sit in the first seat area and the second seat area to rest; when there are fewer users and a larger space is needed for lying down, the movable seat moves to one side of the adjustment cavity of the cushion, so that the backrest body is located on one side of the seat contact surface, making the accommodation space of the second seat area smaller, so as to provide a larger accommodation space for the first seat area for users to lie down. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model.

[0022] Figure 2 It is a structural schematic diagram of a backrest body of the utility model.

[0023] Figure 3 It is a structural schematic diagram of the support plate of the utility model.

[0024] Figure 4 It is a structural schematic diagram of the movable seat of the utility model.

[0025] Figure 5 It is a structural schematic diagram of a first backrest pad and a second backrest pad of the utility model.

[0026] Figure 6 It is a structural schematic diagram of the second fixed magnet of the utility model.

[0027] Figure 7 It is a structural schematic diagram of the limit strip of the utility model.

[0028] Wherein, the reference numerals are:

[0029] 1. Base; 2. Cushion; 3. Adjustment cavity; 4. Seat contact surface; 5. First seat area; 6. Second seat area; 7. Backrest body; 8. First fixing part; 9. Second fixing part; 10. Support plate; 11. Movable seat; 12. First adjustment hole; 13. Sliding slot; 14. Second adjustment hole; 15. Fixing pin; 16. First mounting slot; 17. First fixing magnet; 18. First backrest support seat; 19. Second backrest support seat; 20. First backrest pad; 21. Second backrest pad; 22. Second mounting slot; 23. Second fixing magnet; 24. Third mounting slot; 25. Third fixing magnet; 26. Third fixing hole; 27. Second fixing hole; 28. Limiting strip; 29. ​​Movable cavity; 30. Storage drawer; 31. First fixing hole; 33. First fixing bolt; 34. Second fixing bolt. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0032] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] Reference Figure 1-Figure 3 In some specific embodiments, a sofa with an adjustable backrest includes a base 1, a seat cushion 2 is provided on the top of the base 1, a backrest body 7 is provided on the top of the seat cushion 2, a first fixing portion 8 is provided on the bottom of the backrest body 7, an adjustment cavity 3 is opened inside the seat cushion 2, a movable seat 11 is slidably connected in the adjustment cavity 3, a second fixing portion 9 is provided on the top of the movable seat 11, the first fixing portion 8 and the second fixing portion 9 are detachably connected, a seat contact surface 4 is provided on the top of the seat cushion 2, and the backrest body 7 divides the seat contact surface 4 into a first seat area 5 and a second seat area 6.

[0034] Through the above technical solution, when there are more users, the movable seat 11 moves to the middle of the adjustment cavity 3 of the cushion 2, and the first fixed part 8 of the backrest body 7 is fixed to the second fixed part 9 of the movable seat 11, so that the backrest body 7 is located in the middle of the seat contact surface 4, so that the accommodation space of the first seat area 5 and the second seat area 6 is the same, so that multiple users can sit in the first seat area 5 and the second seat area 6 to rest; when there are fewer users and a larger space is needed for lying down, the movable seat 11 moves to one side of the adjustment cavity 3 of the cushion 2, so that the backrest body 7 is located on one side of the seat contact surface 4, so that the accommodation space of the second seat area 6 becomes smaller, so as to provide a larger accommodation space in the first seat area 5 for users to lie down.

[0035] In addition, the movable seat 11 can be moved to the other side of the adjustment cavity 3 of the cushion 2, so that the backrest body 7 is located on the other side of the seat contact surface 4, making the accommodation space of the first seat area 5 smaller, thereby facilitating the provision of a larger accommodation space for the second seat area 6 for the user to lie down.

[0036] Reference Figure 1-Figure 7 In some specific embodiments, the backrest body 7 includes a first backrest support seat 18 and a second backrest support seat 19, one end of the second backrest support seat 19 is hinged to one end of the first backrest support seat 18, and the number of the first fixing portions 8 is two, and the two first fixing portions 8 are respectively arranged at the bottom of the first backrest support seat 18 and the bottom of the second backrest support seat 19.

[0037] Through the above technical solution, when the movable seat 11 moves to the middle of the adjustment cavity 3 of the cushion 2, the second backrest support seat 19 is folded to one side of the first backrest support seat 18, so as to provide support for the backs of users in the first seat area 5 and the second seat area 6 at the same time; if the backrest body 7 is located on one side of the seat contact surface 4, the second backrest support seat 19 is unfolded upward, so that the first backrest support seat 18 and the second backrest support seat 19 are in a vertical state, so as to provide a larger contact area for the back when there are fewer users, so as to provide better comfort to users when there are fewer users.

[0038] Reference Figure 3-Figure 7 In some specific embodiments, the second fixed portion 9 includes two groups of first fixed magnets 17, and the two groups of first fixed magnets 17 are respectively installed on the top of the movable seat 11. The first fixed portion 8 includes a second fixed magnet 23 and a third fixed magnet 25. The second fixed magnet 23 is installed at the other end of the first backrest support seat 18, and the second fixed magnet 23 is attracted to any group of first fixed magnets 17. The third fixed magnet 25 is installed at the other end of the second backrest support seat 19, and the third fixed magnet 25 is attracted to any group of first fixed magnets 17.

[0039] Through the above technical solution, when the second backrest support seat 19 is folded to one side of the first backrest support seat 18, the second fixed magnet 23 and the third fixed magnet 25 are attracted to the two groups of first fixed magnets 17, thereby facilitating fixing the folded positions of the first backrest support seat 18 and the second backrest support seat 19.

[0040] Reference Figure 4-Figure 7 In some specific embodiments, two groups of first mounting grooves 16 are opened on the top of the movable seat 11, the height of the first fixed magnet 17 matches the depth of the first mounting groove 16, and the two groups of first fixed magnets 17 are respectively installed inside the two rows of first mounting grooves 16.

[0041] Reference Figure 4-Figure 7 In some specific embodiments, a second mounting groove 22 is formed at the other end of the first backrest support seat 18, and a second fixed magnet 23 is installed in the second mounting groove 22, and the height of the second fixed magnet 23 matches the depth of the second mounting groove 22; a third mounting groove 24 is formed at the other end of the second backrest support seat 19, and a third fixed magnet 25 is installed in the third mounting groove 24, and the height of the third fixed magnet 25 matches the depth of the third mounting groove 24.

[0042] Through the above technical solution, the height of the first fixed magnet 17 is matched with the depth of the first mounting groove 16, the height of the second fixed magnet 23 is matched with the depth of the second mounting groove 22, and the height of the third fixed magnet 25 is matched with the depth of the third mounting groove 24, so that the installation positions of the first fixed magnet 17, the second fixed magnet 23 and the third fixed magnet 25 can be hidden, thereby avoiding exposure of the first fixed magnet 17, the second fixed magnet 23 and the third fixed magnet 25.

[0043] Reference Figure 1-Figure 7 In some specific embodiments, a first backrest pad 20 is provided on one side of the first backrest support seat 18, and the first backrest pad 20 is elastic. A second backrest pad 21 is provided on one side of the second backrest support seat 19, and the second backrest pad 21 is elastic.

[0044] Through the above technical solution, when the second backrest support seat 19 is folded to one side of the first backrest support seat 18, the second backrest cushion 21 faces the first seat area 5, and the first backrest cushion 20 faces the second seat area 6, thereby improving the user's rest comfort through the elastic first backrest cushion 20 and the second backrest cushion 21.

[0045] Reference Figure 6-Figure 7In some specific embodiments, a limit strip 28 is further included, a plurality of first fixing holes 31 are defined in the limit strip 28, a second fixing hole 27 is defined in the outer edge of the first backrest support seat 18, a first fixing bolt 33 is passed through any of the first fixing holes 31, and the insertion end of the first fixing bolt 33 is threadedly engaged with the second fixing hole 27, a third fixing hole 26 is defined in the outer edge of the second backrest support seat 19, a second fixing bolt 34 is passed through any of the first fixing holes 31, and the insertion end of the second fixing bolt 34 is threadedly engaged with the third fixing hole 26.

[0046] Through the above technical solution, when the second backrest support seat 19 is folded to one side of the first backrest support seat 18 or the first backrest support seat 18 and the second backrest support seat 19 are in a vertical state, one end of the first fixing bolt 33 passes through any first fixing hole 31 and is threadedly engaged with the second fixing hole 27, and one end of the second fixing bolt 34 passes through any first fixing hole 31 and is threadedly engaged with the third fixing hole 26, thereby facilitating the limiting of the position of the first backrest support seat 18 and the second backrest support seat 19 after the transformation, thereby improving the firmness of the first backrest support seat 18 and the second backrest support seat 19 after the transformation.

[0047] Reference Figure 3-Figure 4 In some specific embodiments, a support plate 10 is provided in the adjustment cavity 3, a sliding groove 13 is provided at the bottom of the movable seat 11, the top of the support plate 10 is located inside the sliding groove 13, and the sliding groove 13 slides with the top of the support plate 10.

[0048] Reference Figure 3-Figure 4 In some specific embodiments, a plurality of first adjustment holes 12 are opened on one side of the support plate 10, and a second adjustment hole 14 is opened on one side of the movable seat 11. The second adjustment hole 14 is connected to the interior of the sliding groove 13. A fixing pin 15 is passed through the second adjustment hole 14, and the fixing pin 15 is plugged into any of the first adjustment holes 12.

[0049] Through the above technical solution, when the position of the movable seat 11 needs to be adjusted, the sliding groove 13 of the movable seat 11 slides with the top of the support plate 10, so as to facilitate guiding the moving position of the movable seat 11. At this time, the fixed pin 15 passing through the second adjustment hole 14 is plugged into any one of the first adjustment holes 12, so that the position of the movable seat 11 after movement is fixed.

[0050] Reference Figure 1-Figure 3 In some specific implementations, a movable cavity 29 is opened on one side of the base 1, and a storage drawer 30 is slidably connected in the movable cavity 29.

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A sofa with an adjustable backrest, comprising a base, a cushion is provided on the top of the base, and a backrest body is provided on the top of the cushion, characterized in that: A first fixing portion is provided at the bottom of the backrest body, an adjustment cavity is opened inside the seat cushion, a movable seat is slidably connected in the adjustment cavity, a second fixing portion is provided on the top of the movable seat, the first fixing portion and the second fixing portion are detachably connected, a seat contact surface is provided on the top of the seat cushion, and the backrest body divides the seat contact surface into a first seat area and a second seat area.

2. A sofa with an adjustable backrest according to claim 1, characterized in that: The backrest body includes a first backrest support seat and a second backrest support seat, one end of the second backrest support seat is hinged to one end of the first backrest support seat, the number of the first fixing parts is two, and the two first fixing parts are respectively arranged at the bottom of the first backrest support seat and the bottom of the second backrest support seat.

3. A sofa with an adjustable backrest according to claim 2, characterized in that: The second fixed part includes two groups of first fixed magnets, which are respectively installed on the top of the movable seat, the first fixed part includes a second fixed magnet and a third fixed magnet, the second fixed magnet is installed at the other end of the first backrest support seat, the second fixed magnet is attracted to any group of the first fixed magnets, and the third fixed magnet is installed at the other end of the second backrest support seat, and the third fixed magnet is attracted to another group of the first fixed magnets.

4. A sofa with an adjustable backrest according to claim 3, characterized in that: Two groups of first installation grooves are formed on the top of the movable seat, the height of the first fixed magnets matches the depth of the first installation grooves, and the two groups of the first fixed magnets are respectively installed inside the two rows of the first installation grooves.

5. The sofa with an adjustable backrest according to claim 4, characterized in that: A second mounting groove is provided at the other end of the first backrest support seat, and the second fixed magnet is installed in the second mounting groove, and the height of the second fixed magnet matches the depth of the second mounting groove; a third mounting groove is provided at the other end of the second backrest support seat, and the third fixed magnet is installed in the third mounting groove, and the height of the third fixed magnet matches the depth of the third mounting groove.

6. The sofa with an adjustable backrest according to claim 2, characterized in that: A first backrest pad is provided on one side of the first backrest support seat, and the first backrest pad is elastic. A second backrest pad is provided on one side of the second backrest support seat, and the second backrest pad is elastic.

7. The sofa with an adjustable backrest according to claim 2, characterized in that: It also includes a limit strip, wherein a plurality of first fixing holes are formed in the limit strip, a second fixing hole is formed on the outer edge of the first backrest support seat, a first fixing bolt is passed through any of the first fixing holes, and the insertion end of the first fixing bolt is threadedly engaged with the second fixing hole, and a third fixing hole is formed on the outer edge of the second backrest support seat, a second fixing bolt is passed through any of the first fixing holes, and the insertion end of the second fixing bolt is threadedly engaged with the third fixing hole.

8. The sofa with an adjustable backrest according to claim 1, characterized in that: A support plate is arranged in the adjusting cavity, a sliding groove is arranged at the bottom of the movable seat, the top of the support plate is located inside the sliding groove, and the sliding groove is slidably matched with the top of the support plate.

9. The sofa with an adjustable backrest according to claim 8, characterized in that: A plurality of first adjustment holes are provided on one side of the support plate, a second adjustment hole is provided on one side of the movable seat, the second adjustment hole is connected to the interior of the sliding groove, a fixing pin is passed through the second adjustment hole, and the fixing pin is plugged into any one of the first adjustment holes.

10. The sofa with an adjustable backrest according to claim 1, characterized in that: A movable cavity is provided on one side of the base, and a storage drawer is slidably connected in the movable cavity.

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