A sofa capable of being used in combination

Abstract

The application relates to a sofa capable of being combined, which comprises a base, a backrest arranged on the base, armrests arranged on both sides of the upper end of the base and seat cushions arranged on the base, the mutually distanced side walls of the seat cushions are respectively in abutment with the armrests, rotating members are arranged on the armrests, the armrests are rotated along the rotating members to be flush with the backrest so as to be converted into the backrest. When a single sofa needs to be combined into multiple integrated sofas, the armrests are upwardly rotated so as to be converted from the state of the armrests into the state of the backrest, and the armrests do not affect the use of the combined sofa during the combination of the adjacent sofas.

Description

Technical Field

[0001] This application relates to the technical field of sofas, and more particularly to a sofa that can be used in combination. Background Technology

[0002] Sofas are a common type of furniture widely used in homes. Currently, sofas are mainly divided into single-seat sofas and multi-seat sofas. Single-seat sofas can be moved around as needed, while multi-seat sofas provide more seating. Since the overall area of ​​modern apartments is relatively small, a multi-seat sofa is usually placed in a home for practical use.

[0003] However, when using a multi-person sofa, its overall weight makes it difficult to move, resulting in inconvenience during use.

[0004] Therefore, a new technical solution is needed to address the above problems. Summary of the Invention

[0005] In order to enable sofas to be used by a single person or to be combined to form a sofa for multiple people, this application provides a sofa that can be used in combination.

[0006] This application provides a sofa that can be used in combination, employing the following technical solution:

[0007] A sofa that can be used in combination includes a base, a backrest disposed on the base, armrests on both sides disposed on the upper end of the base, and a seat cushion disposed on the base. The sidewalls of the seat cushion that are far apart from each other abut against the armrests. The armrests are provided with rotating parts, and the armrests rotate along the rotating parts to become flush with the backrest, thereby transforming into a backrest.

[0008] By adopting the above technical solution, when it is necessary to splice individual sofas into multiple integrated sofas, the armrests are rotated upwards to change them from armrests to backrests. During the splicing of adjacent sofas, the armrests will not affect the use of the spliced ​​sofa.

[0009] Optionally: An auxiliary pad is provided on the end face of the base that abuts against the armrest. A receiving groove is provided on the side wall of the armrest that abuts against the base. The receiving groove passes through the side wall of the armrest near the seat cushion. The upper end face of the auxiliary pad is flush with the upper end face of the seat cushion. The auxiliary pad is set in the receiving groove.

[0010] By adopting the above technical solution, after splicing multiple sofas together, auxiliary pads are used to fill the gaps between adjacent cushions, so that when sitting on the sofa, the sofa is less likely to have a dent, and the normal use of the sofa is not easily affected.

[0011] Optionally: one end of the rotating component is rotatably connected to the base near the backrest, and the other end of the rotating component is rotatably connected to the middle of the inner cavity of the receiving groove. Both ends of the armrest are provided with relief grooves that communicate with their inner cavities. The relief grooves penetrate the lower end face of the armrest, and the upper end of the horizontal rotating component abuts against the top surface of the relief groove.

[0012] By adopting the above technical solution, after the sofa has rotated, the rotation angle between the armrest and the rotating component can be limited by the contact between the clearance groove and the rotating component. At the same time, the rotating component is hidden in the base so that the rotating component is not directly exposed outside the armrest and affects the aesthetics.

[0013] Optionally, the backrest is detachably connected to a plurality of horizontally arranged abutment rods, the abutment rods being arranged along the side wall of the backrest for leaning against, and the abutment rods abutting against the side wall of the armrest for abutting the auxiliary pad.

[0014] By adopting the above technical solution, when the armrest is rotated upward to be flush with the backrest and the armrest is used as a backrest, the abutment rod can be used to apply a pushing force to the armrest, so that the armrest can be kept flush with the backrest, thus making the use of the armrest as a backrest less affected.

[0015] Optional: The base is further provided with several extension pieces, which are located on the side of the auxiliary pad away from the seat cushion, and one end of the abutment rod passes through the armrest and the extension pieces.

[0016] By adopting the above technical solution, when the armrest is not flipped, the abutment rod is inserted through the armrest and the extension plate, which limits the position of the armrest relative to the base, so that the armrest can be used stably. After the armrest is flipped, the extension plate can also contact the auxiliary pad, thereby limiting the position of the auxiliary pad. When the sofa is not spliced ​​but the armrest is flipped upward, the auxiliary pad is not easy to fall off the base.

[0017] Optionally: Several limiting rods are provided on one vertical side wall of the base near the armrest, and the limiting rods are slidably disposed on the base. Several limiting grooves are provided on another side wall of the base near the armrest, and the limiting rods are inserted into the limiting grooves of adjacent sofas.

[0018] By adopting the above technical solution, during the splicing process of adjacent sofas, a limiting rod is inserted into the limiting groove of the adjacent sofas, making it difficult for the two adjacent sofas to move relative to each other, thus making it less likely for the sofas to misalign during use.

[0019] Optionally, the base is further provided with a drive mechanism that drives the limit rod to extend and retract automatically. The drive mechanism includes a first pulley fixed on the rotating part, a second pulley connected to the rotating part in the base, a gear coaxially fixed on the second pulley, a rack slidably disposed in the base, and a connecting rod rotatably connected to the rack. The first pulley and the second pulley are jointly fitted with a synchronous belt that drives them to rotate synchronously. The gear meshes with the rack, and the end of the connecting rod away from the rack is rotatably connected to the end of the limit rod located in the base.

[0020] By adopting the above technical solution, during the process of rotating the armrest upward, the drive mechanism can automatically drive the limiting rod to extend from the base and insert into the limiting groove of the adjacent sofa, thus eliminating the need for manual removal of the limiting rod from the base and making the connection between adjacent sofas more convenient.

[0021] Optionally: A rotating shaft is fixed on the rotating component and rotatably connected to the base. The first pulley is rotatably connected to the rotating shaft. A linkage mechanism that drives the first pulley to rotate is provided on the rotating shaft. The linkage mechanism includes a turntable coaxially fixed on the rotating shaft, a linkage block slidably disposed on the turntable, a linkage elastic element that pushes the linkage block to move toward the axis of the turntable, and a linkage wheel coaxially fixed on the first pulley. A plurality of linkage grooves are provided circumferentially on the outer wall of the linkage wheel. The linkage block is embedded in the linkage groove. A pushing block is provided on the side wall of the linkage block near the turntable. The pushing block passes through the turntable and is slidably connected to the turntable.

[0022] By adopting the above technical solution, the armrest is rotated upwards without connecting adjacent sofas. A force away from the pivot is applied to the push block, thereby disengaging the linkage block from the linkage groove. Then, a force is applied to the limit rod toward the base, causing the limit rod to retract into the base. Thus, the limit rod will not extend out of the base without the sofas being assembled.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. In the process of assembling a single sofa into a multi-person sofa, simply rotate the armrests upwards to transform them into backrests, thus allowing the single sofa to be directly assembled into a multi-person sofa;

[0025] 2. During the rotation of the armrest, the limit rod can be automatically extended from the base through the drive mechanism, making the splicing process of adjacent sofas more convenient. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of an embodiment of this application;

[0027] Figure 2 This is a schematic diagram illustrating the handrail structure in an embodiment of this application;

[0028] Figure 3 This is a schematic diagram illustrating the abutment rod structure in an embodiment of this application;

[0029] Figure 4 This is a schematic diagram illustrating the structure of the drive mechanism according to an embodiment of this application;

[0030] Figure 5 for Figure 4 Enlarged view of part A.

[0031] In the diagram, 1. Base; 11. Backrest; 12. Armrest; 121. Receiving groove; 122. Leaving groove; 123. Abutment hole; 13. Seat cushion; 14. Rotating component; 141. Rotating shaft; 15. Auxiliary pad; 16. Extension piece; 17. Limiting rod; 18. Limiting groove; 2. Abutment rod; 21. Rotating block; 22. Repair ring; 221. Adjustment groove; 23. Adjustment pin; 24. Compression spring; 3. Drive mechanism; 31. First pulley; 32. Second pulley; 33. Gear; 34. Rack; 35. Connecting rod; 36. Synchronous belt; 4. Linkage mechanism; 41. Turntable; 411. Sliding groove; 42. Linkage block; 43. Linkage elastic component; 44. Linkage wheel; 441. Linkage groove; 45. Push block. Detailed Implementation

[0032] The present application will be further described in detail below with reference to the accompanying drawings.

[0033] This application discloses a sofa that can be used in combination, such as Figure 1 and Figure 2As shown, the system includes a base 1, a backrest 11 mounted on the base 1, armrests 12 located on both sides of the upper end of the base 1, and a seat cushion 13 mounted on the base 1. The armrests 12 are respectively located on both sides of the backrest 11, with the adjacent sidewalls of the two armrests 12 abutting against the opposing sidewalls of the backrest 11, and the opposing sidewalls of the two armrests 12 being flush with the vertical sidewalls of the base 1. The seat cushion 13 is located between the two armrests 12, with both armrests 12 abutting against the seat cushion 13, and the upper surface of the seat cushion 13 being lower than the upper surface of the armrests 12. A receiving groove 121 is formed on the sidewall of the armrest 12 abutting against the base 1, and the receiving groove 121 passes through the sidewall of the armrest 12 near the seat cushion 13. Two clearance grooves 122, parallel to the length of the handrail 12, are also provided on the top surface of the receiving groove 121. These clearance grooves 122 penetrate both end faces of the handrail 12 along its length and pass through the side wall of the handrail 12 that abuts against the base 1. Each of the two clearance grooves 122 contains a rotating member 14. One end of the rotating member 14 is rotatably connected to the middle of the clearance groove 122, and the other end extends out of the clearance groove 122 and connects to the base 1. The rotating member 14 abuts against the top of the clearance groove 122, thus keeping the rotating member 14 parallel to the handrail 12. A common rotating shaft 141 is fixed to the ends of the two rotating members 14 that extend out of the handrail 12. The rotating shaft 141 is connected to the base 1. When multiple single sofas need to be combined into a multi-seater sofa, the armrests 12 on the mating surface are rotated upward along the pivot 141. Then, the armrests 12 are rotated 180 degrees along the axis of rotation of the rotating component 14 and the armrests 12. Then, the armrests 12 and the rotating component 14 are rotated along the pivot 141 until the armrests 12 are flush with the backrest 11, thus completing the transformation of the armrests 12. After the transformation is completed, the function of the armrests 12 becomes the function of the backrest 11, and adjacent sofas can be joined together to form a multi-seater sofa.

[0034] like Figure 2 As shown, two auxiliary pads 15 are also provided on the base 1. The thickness of the two auxiliary pads 15 is equal to the thickness of the seat cushion 13, so that after the auxiliary pads 15 are placed on the base 1, the upper surface of the auxiliary pads 15 is flush with the upper surface of the seat cushion 13. The two auxiliary pads 15 are respectively placed on the side of the seat cushion 13 near the armrest 12, and the auxiliary pads 15 can be embedded in the receiving groove 121, and the auxiliary pads 15 abut against the seat cushion 13. After the armrest 12 is rotated upward, the auxiliary pads 15 can fill the area on the base 1 that is not covered by the seat cushion 13, so that the seat is less likely to sag after adjacent sofas are spliced.

[0035] To ensure stability during use after the armrest 12 is converted into a backrest 11, several horizontally arranged abutment rods 2 are detachably connected to the side wall of the backrest 11 near the armrest 12. Each abutment rod 2 is threaded to one end of the backrest 11, allowing it to be removed when not in use. The abutment rods 2 are arranged along the inclined direction of the side wall of the backrest 11 used for support. Several abutment holes 123 are formed through the side wall of the armrest 12 away from the seat cushion 13, arranged along the length of the armrest 12. The abutment rods 2 pass through these holes, thus limiting the position of the armrest 12 and ensuring its stability when leaned against, preventing movement.

[0036] Before rotating the armrest 12 upwards, a stable connection between the armrest 12 and the base 1 must be ensured. Therefore, the base 1 is provided with several upwardly extending extension pieces 16. The extension pieces 16 are located on the side of the auxiliary pad 15 away from the seat cushion 13, and can abut against the auxiliary pad 15. The extension pieces 16 are located in the receiving groove 121, and the abutting rod 2 passes through the extension piece 16 to limit the position of the armrest 12. The auxiliary pad 15 has a placement groove on its side wall near the extension piece 16 for accommodating the limiting rod 17. The placement groove passes through the lower end face of the auxiliary pad 15. After the abutting rod 2 passes through the armrest 12 and the extension piece 16, the abutting rod 2 is placed in the placement groove.

[0037] like Figure 3 As shown, when the abutment rod 2 is inserted into the handrail 12, its end needs to be flush with the side wall of the handrail 12 to prevent it from protruding. Since the abutment rod 2 needs to rotate, a regular polygonal rotating block 21 is required at its end away from the thread. When the abutment rod 2 is fully recessed into the handrail 12, a gap will form between the rotating block 21 and the handrail 12, failing to provide stable support. Therefore, a repair ring 22 is slidably provided outside the rotating block 21. The diameter of the repair ring 22 is equal to the diameter of the abutment ring, and the inner wall of the repair ring remains in contact with the side wall of the rotating block 21. An adjustment groove 221 runs through the outer wall of the repair ring 22 along its length. An adjustment pin 23 is fixed on the outer wall of the rotating block 21. The adjustment pin 23 is located in the adjustment groove 221 to guide the movement of the repair ring 22. When the adjustment pin 23 abuts against the side wall of the adjustment groove 221 near the threaded side of the abutment rod 2, the repair ring 22 is flush with the end face of the rotating block 21 away from the abutment rod 2. A compression spring 24 is also fitted on the rotating block 21. One end of the compression spring 24 abuts against the end face of the support rod, and the other end of the compression spring 24 abuts against the repair ring 22, thereby keeping the repair ring 22 flush with the end face of the rotating block 21 away from the abutment rod 2.

[0038] like Figure 1 and Figure 2 As shown, since the relative positions of adjacent sofas need to be maintained after they are joined together, several horizontally arranged limiting rods 17 are provided on one side wall of the base 1 near the armrest 12. The limiting rods 17 are connected to the base 1, allowing them to retract completely into the base 1 or extend out of it. Several limiting grooves 18 are provided on another side wall of the base 1 away from the limiting rods 17. The limiting rods 17 can be inserted into the limiting grooves 18 of adjacent sofas, thereby limiting the relative positions of the adjacent sofas and making the sofas more convenient to use after being joined together.

[0039] like Figure 4 and Figure 5 As shown, since the armrests 12 need to be rotated upwards when assembling adjacent sofas, the base 1 is also equipped with a drive mechanism 3 that automatically extends and retracts the limiting rod 17 by rotating the armrests 12. The drive mechanism 3 includes a first pulley 31 coaxially mounted on a rotating shaft 141, a second pulley 32 rotatably connected to the base 1, a gear 33 coaxially fixed to the second pulley 32, a rack 34 slidably mounted in the base 1, and several connecting rods 35 rotatably connected to the rack 34. The second pulley 32 is located below the first pulley 31, and the first pulley 31 and the second pulley 32 are connected by a synchronous belt 36, so that they rotate synchronously. The rack 34 is arranged parallel to the length direction of the armrests 12, and the rack 34 meshes with the gear 33. The connecting rods 35 are arranged perpendicular to the rack 34 and are arranged along the length direction of the rack 34. The end of the connecting rod 35 away from the rack 34 is hinged to the limiting rod 17, so that the movement of the rack 34 drives the limiting rod 17 to extend and retract automatically.

[0040] Since there are cases where the handle can be rotated upwards but not connected to the adjacent sofa, the limiting rod 17 needs to retract into the base 1 after the handle is rotated upwards. Therefore, a linkage mechanism 4 is also provided to rotate the rotating shaft 141 relative to the first pulley 31. The linkage mechanism 4 includes a turntable 41 coaxially fixed to the rotating shaft 141, a linkage block 42 slidably disposed on the turntable 41, a linkage elastic element 43 that pushes the linkage block 42 toward the axis of the turntable 41, and a linkage wheel 44 coaxially fixed to the first pulley 31. The linkage block 42 is disposed on the end face of the turntable 41 near the first pulley 31, and the sliding direction of the linkage block 42 is parallel to the radial direction of the turntable 41. The linkage wheel 44 rotates synchronously with the first pulley 31. Several linkage grooves 441 are circumferentially opened on the side wall of the linkage wheel 44, and the linkage block 42 can be embedded in the linkage grooves 441 so that the turntable 41 and the linkage wheel 44 rotate synchronously. In this embodiment, the linkage elastic element 43 is a spring. One end of the linkage elastic element 43 is fixed to the turntable 41, and the other end of the linkage elastic element 43 abuts against the end face of the linkage block 42 away from the linkage wheel 44. The turntable 41 is also provided with a sliding groove 411 parallel to the sliding direction of the linkage block 42. A pushing block 45 is also provided on the side wall of the linkage block 42 near the turntable 41. The pushing block 45 passes through the sliding groove 411 and moves along the sliding groove 411.

[0041] The implementation principle of this embodiment is as follows: When the sofa needs to be assembled, push the repair ring 22 toward the abutment rod 2 and then pinch the rotating block 21 to remove the abutment rod 2 from the armrest 12. Then, rotate the armrest 12 and the rotating component 14 upwards simultaneously, and rotate the auxiliary component 14 180 degrees along its rotation axis with the rotating component 14. Then, rotate the rotating component 14 and the armrest 12 until they are flush with the backrest 11, insert the abutment rod 2 onto the armrest 12, and thread the abutment rod 2 to the backrest 11. During the rotation of the rotating component 14, the first pulley 31 and the second pulley 32 rotate synchronously, and the rack 34 moves horizontally to push the limiting rod 17 out of the base 1, so that the limiting rod 17 is inserted into the limiting groove 18 of the adjacent sofa. If it is not necessary to insert the limiting rod 17 into the adjacent base 1, force is applied to the pushing block 45 to disengage the linkage block 42 from the linkage groove 441, and force is applied to the limiting rod 17 toward the base 1, so that the limiting rod 17 sinks into the base 1.

[0042] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sofa that can be used in combination, characterized in that: The device includes a base (1), a backrest (11) mounted on the base (1), armrests (12) on both sides of the upper end of the base (1), and a seat cushion (13) mounted on the base (1). The sidewalls of the seat cushion (13) that are far apart from each other abut against the armrests (12). The armrests (12) are provided with rotating parts (14). The armrests (12) rotate along the rotating parts (14) until they are flush with the backrest (11), thus transforming into the backrest (11). Several limiting rods (17) are provided on a vertical sidewall of the base (1) near the armrests (12). The limiting rods (17) are slidably mounted on the base (1). The base (1) has several limiting grooves (18) on one side wall near the armrest (12), and the limiting rod (17) is inserted into the limiting groove (18) of the adjacent sofa; the base (1) is also provided with a drive mechanism (3) that drives the limiting rod (17) to extend and retract automatically. The drive mechanism (3) includes a first pulley (31) fixed on the rotating part, a second pulley (32) rotatably connected in the base (1), a gear (33) coaxially fixed on the second pulley (32), a rack (34) slidably arranged in the base (1), and a connecting rod (35) rotatably connected to the rack (34). A synchronous belt (36) is fitted on both the first pulley (31) and the second pulley (32) to drive them to rotate synchronously. The gear (33) meshes with the rack (34). The end of the connecting rod (35) away from the rack (34) is rotatably connected to the end of the limiting rod (17) located in the base (1). A rotating shaft (141) is fixed on the rotating component (14) and rotatably connected to the base (1). The first pulley (31) is rotatably connected to the rotating shaft (141). A linkage mechanism (4) is provided on the rotating shaft (141) to drive the first pulley (31) to rotate. The linkage mechanism (4) includes a coaxial fixed The rotating shaft (141) has a turntable (41), a linkage block (42) slidably disposed on the turntable (41), a linkage elastic element (43) that pushes the linkage block (42) to move toward the axis of the turntable (41), and a linkage wheel (44) coaxially fixed on the first pulley (31). The outer wall of the linkage wheel (44) is provided with a plurality of linkage grooves (441) circumferentially. The linkage block (42) is embedded in the linkage groove (441). The side wall of the linkage block (42) near the turntable (41) is provided with a push block (45). The push block (45) passes through the turntable (41) and is slidably connected to the turntable (41).

2. A sofa that can be used in combination according to claim 1, characterized in that: An auxiliary pad (15) is provided on the end face of the base (1) that abuts against the armrest (12). The armrest (12) has a receiving groove (121) on the side wall of the base (1). The receiving groove (121) passes through the side wall of the armrest (12) near the seat cushion (13). The upper end face of the auxiliary pad (15) is flush with the upper end face of the seat cushion (13). The auxiliary pad (15) is located in the receiving groove (121).

3. A sofa that can be used in combination according to claim 2, characterized in that: One end of the rotating component (14) is rotatably connected to the base (1) near the backrest (11), and the other end of the rotating component (14) is rotatably connected to the middle of the cavity of the receiving groove (121). Both ends of the armrest (12) are provided with relief grooves (122) that communicate with their cavities. The relief grooves (122) penetrate the lower end face of the armrest (12), and the upper end of the horizontal rotating component (14) abuts against the top surface of the relief grooves (122).

4. A sofa that can be used in combination according to claim 3, characterized in that: The backrest (11) is detachably connected to a plurality of horizontally arranged abutment rods (2), which are arranged along the side wall of the backrest (11) for support, and abut against the side wall of the armrest (12) for abutting against the auxiliary pad (15).

5. A sofa that can be used in combination according to claim 4, characterized in that: The base (1) is also provided with a number of extension pieces (16), which are located on the side of the auxiliary pad (15) away from the seat cushion (13). One end of the abutment rod (2) passes through the armrest (12) and the extension piece (16).

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