Multifunctional horizontal rhythm sofa

Abstract

The invention relates to a multifunctional horizontal rhythm sofa, which is applied to the technical field of office furniture and massagers and comprises a rhythm base mechanism, a cushion support mechanism, a shank support mechanism and a backrest support mechanism. When the chair is used, a user sits on the cushion on the cushion bracket, the back leans against the backrest bracket, and the shanks are put on the shank bracket, so that better use experience is brought to the user; during use, the rhythm support can be driven by the first driving assembly to perform horizontal rhythm so that a user can perform rhythm together, the cushion support can be driven by the second driving assembly to perform horizontal sliding so that the sitting posture of the user can be adjusted, and the shank support can also be driven by the third driving assembly to rotate so that the user can feel more comfortable. The shanks of users with different sitting postures can be better supported; in this way, the device is diversified in function, and more diversified experience can be brought to a user.

Description

Technical Field

[0001] The invention relates to the technical field of office furniture and massagers, in particular to a multifunctional horizontal rhythmic sofa. Background Art

[0002] The origin of sofas can be traced back to ancient Egypt around 2000 BC, but the real soft-covered sofas appeared in the late 16th and early 17th centuries. At that time, sofas were mainly filled with natural elastic materials such as horsehair, bird feathers, and plant hair, and covered with fabrics such as velvet and embroidery to form a soft surface for human contact. For example, the Huaxinger chair, which was popular in Europe at that time and was used by the public, was one of the earliest sofa chairs.

[0003] Currently, most sofas can only provide users with the function of sitting, and the functions are relatively simple and cannot meet the users' diverse needs.

[0004] In view of this, a multifunctional horizontal rhythmic sofa is urgently needed to solve the above problems. Summary of the invention

[0005] In order to help solve the problems existing in the prior art, the present invention provides a multifunctional horizontal rhythmic sofa, which adopts the following technical solution: comprising: a rhythmic base mechanism, a cushion support mechanism, a calf support mechanism and a backrest support mechanism;

[0006] The rhythm base mechanism comprises a base, a rhythm bracket and a first driving component, wherein the rhythm bracket is arranged on the base, and the first driving component is used to drive the rhythm bracket to perform horizontal rhythm on the base;

[0007] The cushion support mechanism comprises a cushion support and a second driving assembly, wherein the cushion support is arranged on the rhythmic support, and the second driving assembly is used to drive the cushion support to perform horizontal linear motion;

[0008] The calf support mechanism comprises a calf support, and the calf support is rotatably arranged on one side of the seat cushion support through a first rotating connection member;

[0009] The backrest support mechanism comprises a backrest support, and the backrest support is arranged on a side of the seat cushion support away from the calf support.

[0010] It is further characterized in that

[0011] A plurality of limit assemblies are arranged on the base, and the limit assemblies include a limit block and a plurality of bearings. A limit channel is horizontally arranged on the limit block, and the rhythmic bracket is passed through the plurality of limit channels. The plurality of bearings are respectively arranged on the top, bottom and both sides of the limit block, and the annular sides of the plurality of bearings extend into the limit channel.

[0012] The second driving assembly includes a first push rod, which is horizontally arranged on the rhythm support, and a driving end of the first push rod is connected to the seat support.

[0013] The third driving assembly includes a second push rod, a movable sheet metal and a movable bracket, the bottom end of the movable bracket is rotatably arranged on the seat cushion bracket, one end of the movable sheet metal is rotatably arranged on the top of the movable bracket, and the other end is rotatably connected to the middle part of the calf bracket, and the angle between the movable sheet metal and the movable bracket is downward;

[0014] The second push rod is arranged on the seat cushion bracket, and the driving end of the second push rod is connected to the middle part of the movable bracket.

[0015] The calf support mechanism also includes a support plate and a linkage assembly, wherein the support plate is slidably arranged on the calf support, and when the calf support is flipped upward, the linkage assembly causes the support plate to slide to the side away from the seat cushion support, and when the calf support is flipped downward, the linkage assembly causes the support plate to slide to the side close to the seat cushion support.

[0016] The linkage assembly includes a first connecting rod, a second connecting rod and a pull rod, one end of the pull rod is rotatably arranged on the seat cushion bracket through a second rotating connecting member, the middle part of the first connecting rod is rotatably arranged on the calf bracket through a third rotating connecting member, the suspension end of the pull rod is rotatably connected to one end of the first connecting rod, one end of the second connecting rod is connected to the support plate, and the other end is connected to the end of the first connecting rod away from the pull rod;

[0017] The horizontal height of the first rotating connection member is higher than the horizontal height of the second connection member, and the position of the second connection member in the vertical direction is closer to one side of the backrest bracket than the position of the first connection member in the vertical direction.

[0018] The bottom of the backrest bracket is rotatably arranged on one side of the seat cushion bracket.

[0019] The backrest bracket mechanism also includes connecting sheet metals arranged on both sides of the bottom of the backrest bracket, and one side of the top end of the connecting sheet metal is rotatably connected to the seat cushion bracket.

[0020] The backrest support mechanism also includes a third connecting rod, a fourth connecting rod and a fifth connecting rod, and the middle portion of the third connecting rod is rotatably arranged on the seat cushion support;

[0021] One end of the fourth connecting rod is connected to the top end of the third connecting rod, and the other end is connected to the bottom end of the connecting sheet metal;

[0022] One end of the fifth connecting rod is connected to the bottom end of the third connecting rod, and the other end is connected to the rhythmic support.

[0023] The backrest bracket mechanism also includes two limiting sheet metals, which are arranged on one side of the seat cushion bracket close to the backrest bracket. The limiting sheet metal is provided with an arc-shaped limiting hole, and a limiting rod is provided in the middle of the connecting sheet metal. The two limiting rods are respectively slidably arranged in the two limiting holes.

[0024] To sum up, when in use, the user sits on the cushion on the seat support, leans his back on the backrest support, and places his calves on the calf support, which brings a better user experience; when in use, the rhythm support can be driven by the first drive component to perform horizontal rhythm, so that the user can perform the rhythm together, the seat support can be driven by the second drive component to slide horizontally, and then the user's sitting posture can be adjusted, and the calf support can also be driven by the third drive component to rotate, so as to better support the calves of users with different sitting postures; in this way, the present application has diverse functions and can bring users a more diverse experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the present invention in a lying flat state;

[0027] Figure 3 It is a structural schematic diagram of the forward support in the present invention

[0028] Figure 4 It is a structural schematic diagram of the rhythmic base mechanism of the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the limit block in the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of the seat cushion bracket, the movable bracket and the backrest bracket in the present invention;

[0031] Figure 7 It is a structural schematic diagram of the movable sheet metal and the movable bracket in the present invention;

[0032] Figure 8 It is a schematic diagram of the structure of the calf support in the present invention;

[0033] Fig. 9 It is a structural schematic diagram of the seat cushion bracket in the present invention;

[0034] Fig.10 Schematic diagram of the structure of the third connecting rod, the fourth connecting rod and the fifth connecting rod in the embodiment of the present invention.

[0035] Figure numerals: 1. rhythmic base mechanism; 11. base; 12. rhythmic bracket; 13. first drive assembly; 14. limit block; 15. bearing; 16. limit channel; 2. cushion bracket mechanism; 17. buffer assembly; 21. cushion bracket; 22. first push rod; 23. translation pulley; 3. calf bracket mechanism; 31. calf bracket; 32. second push rod; 33. movable sheet metal; 34. movable bracket; 35. support plate; 36. first connecting rod; 37. second connecting rod; 38. pull rod; 4. backrest bracket mechanism; 41. backrest bracket; 42. connecting sheet metal; 43. third connecting rod; 44. fourth connecting rod; 45. fifth connecting rod; 46. limit sheet metal. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0037] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product or equipment comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0038] The following is combined with Figure 1-10 The present invention is further described in detail.

[0039] Reference Figure 1-4 , a multifunctional horizontal rhythmic sofa, a rhythmic base mechanism 1, a cushion support mechanism 2, a calf support mechanism 3 and a backrest support mechanism 4;

[0040] The rhythm base mechanism 1 includes a base 11, a rhythm bracket 12 and a first driving component 13. The rhythm bracket 12 is arranged on the base 11. The first driving component 13 is used to drive the rhythm bracket 12 to perform horizontal rhythm on the base 11 (the specific structure and driving method of the first driving component 13 are prior art and will not be described in detail here);

[0041] The cushion support mechanism 2 includes a cushion support 21 and a second drive assembly. The cushion support 21 is slidably disposed on a forward support (such as a seat support 21) of the rhythm support 12 through a plurality of translation pulleys 23. Figure 2 and 3(D) on the guide groove, the second driving assembly is used to drive the cushion bracket 21 to make horizontal linear motion;

[0042] The calf support mechanism 3 includes a calf support 31, and the calf support 31 is connected to the calf support 31 by a first rotating connection member (such as Figure 6 (shown in A) is rotatably disposed on one side of the seat cushion bracket 21;

[0043] The backrest support mechanism 4 includes a backrest support 41 . The backrest support 41 is arranged on a side of the seat cushion support 21 away from the calf support 31 .

[0044] Based on the above structure, when in use, the user sits on the cushion on the seat support 21, leans his back on the backrest support 41, and places his calves on the calf support 31, which brings a better use experience to the user; when in use, the rhythm support 12 can be driven by the first drive component 13 to perform horizontal rhythm, so that the user can perform the rhythm together, and the seat support 21 can be driven by the second drive component to slide horizontally, so as to adjust the user's sitting posture, and the calf support 31 can be rotated (lifted or lowered) to better support the calves of users with different sitting postures; in this way, the present application has diverse functions and can bring users more diverse experiences.

[0045] like Figure 4 and Figure 5 As shown, the base 11 is provided with a plurality of limit assemblies, the limit assemblies include a limit block 14 and a plurality of bearings 15, a limit channel 16 is horizontally provided on the limit block 14, the rhythmic bracket 12 is penetrated in the plurality of limit channels 16, and the plurality of bearings 15 are respectively arranged at the top, bottom and both sides of the limit block 14, and the ring sides of the plurality of bearings 15 extend into the limit channels 16. In this embodiment, the plurality of limit assemblies are respectively arranged on both sides of the top of the base 11, and both sides of the rhythmic bracket 12 are penetrated in the limit channels 16 on both sides. When the first driving component 13 drives the rhythmic bracket 12 to reciprocate, since the rhythmic bracket 12 has no direct contact with the limit block 14, both are in rolling contact through the bearing 15 (the bearing 15 can be a rubber-coated bearing), so that the rhythmic bracket 12 moves more smoothly and with lower noise; and the rhythmic bracket 12 is provided with a buffer component 17 (which can be a spring or a rubber column) on both sides of the movement direction of the cushion bracket 21 to buffer and decelerate the movement of the cushion bracket 21 and reduce the impact damage to the second driving component.

[0046] like Figure 1 and Figure 2 As shown, the second driving assembly includes a first push rod 22 (such as an electric push rod, etc.), the first push rod 22 is horizontally arranged on the rhythm bracket 12, and the driving end of the first push rod 22 is connected to the cushion bracket 21. In this way, when the position of the cushion bracket 21 needs to be adjusted, the first push rod 22 is extended and retracted to drive the cushion bracket 21 to translate on the rhythm bracket 12.

[0047] like Figure 1 , Figure 2 as well as Figure 7 As shown, the third driving assembly includes a second push rod 32, a movable sheet metal 33 and a movable bracket 34, the bottom end of the movable bracket 34 is rotatably set on the seat cushion bracket 21, one end of the movable sheet metal 33 is rotatably set on the top of the movable bracket 34, and the other end is rotatably connected to the middle part of the calf bracket 31, and the angle between the movable sheet metal 33 and the movable bracket 34 is downward; the second push rod 32 is rotatably set on the seat cushion bracket 21, and the driving end of the second push rod 32 is connected to the middle part of the movable bracket 34. In this way, the initial state of the present application is as follows Figure 1 As shown, the movable bracket 34 is driven by the second push rod 32 (extended) to rotate toward the side of the calf bracket 31 with the bottom end as the axis, so that the movable sheet metal 33 moves toward the side of the calf bracket 31. Since one side of the calf bracket 31 is rotatably connected to the seat cushion bracket 21, when the movable sheet metal 33 pushes the calf bracket 31 from the middle of the calf bracket 31, the hanging end of the calf bracket 31 flips upward, thereby flipping the calf bracket 31 to the position shown in FIG. Figure 2 on the contrary, the second push rod 32 retracts, causing the suspended end of the calf support 31 to swing downward and move toward the side of the seat cushion support 21.

[0048] like Figure 6 and Figure 8 As shown, the calf support mechanism 3 also includes a support plate 35 and a linkage assembly. The support plate 35 is slidably arranged on the calf support 31 through the slide rails arranged on both sides of the calf support 31. When the calf support 31 is flipped upward, the linkage assembly causes the support plate 35 to slide to the side away from the seat support 21 (so that the calf support 31 is extended). When the calf support 31 is flipped downward, the linkage assembly causes the support plate 35 to slide to the side close to the seat support 21 (so that the calf support 31 is shortened); wherein the linkage assembly specifically includes a first connecting rod 36, a second connecting rod 37 and a pull rod 38, one end of the pull rod 38 is connected by a second rotating connecting member (such as Figure 6 B) is rotatably arranged on the cushion bracket 21, and the middle part of the first connecting rod 36 is connected by a third rotating connecting member (as shown in FIG. Figure 6 The first connecting rod 36 is rotatably connected to the first connecting rod 36 at its suspended end, and the second connecting rod 37 is connected to the support plate 35 at its one end, and connected to the end of the first connecting rod 36 away from the connecting rod 38 at its other end (the rotation axis of the first connecting rod 36 relative to the second connecting rod 37 and the rotation axis of the second connecting rod 37 relative to the calf support 21 are both in the vertical direction, and an L-shaped sheet metal (such as Figure 2E in the figure), so that the rotation axis of the first connecting rod 36 relative to the pull rod 38 is facing the horizontal direction); the horizontal height of the first rotating connection member is higher than the horizontal height of the second connecting member, and the position of the second connecting member in the vertical direction is closer to one side of the backrest bracket 41 than the position of the first connecting member in the vertical direction (that is, when the calf bracket 31 is in the state after being lifted, the distance between the second rotating connection member and the third rotating connection member is H1, and when the calf bracket 31 is in the state before being lifted, the distance between the second rotating connection member and the third rotating connection member is H2, wherein H2 is smaller than H1). In this way, since the user is in a lying position, the calf bracket 31 is required to become longer to support the entire leg. Therefore, the length of the pull rod 38 remains unchanged. When the calf bracket 31 is in a lying position, the distance between the second rotating connection member and the third rotating connection member is H2, wherein H2 is smaller than H1. When the bracket 31 is flipped upward (lifted), due to the length of the distance between the second rotating connection member and the third rotating connection member, the pull rod 38 drags the first connecting rod 36 to rotate, so that the second connecting rod 37 moves to the side away from the seat cushion bracket 21, and then the support plate 35 moves to the side away from the first connecting rod 36, and the length of the calf bracket 31 is extended; conversely, the support plate 35 moves to the side close to the first connecting rod 36, and the support plate 35 is retracted onto the calf bracket 31; wherein, in the initial state (the calf bracket 31 is not extended), the angle between the first connecting rod 36 and the second connecting rod 37 (the smaller angle, the same below) is small, and as the angle between the first connecting rod 36 and the second connecting rod 37 gradually increases, the support plate 35 moves on the calf bracket 31 away from the first connecting rod 36.

[0049] like Figure 1 , Figure 2 , Fig. 9 and Fig.10As shown, the bottom of the backrest bracket 41 is rotatably arranged on one side of the seat cushion bracket 21; the backrest bracket mechanism 4 also includes two connecting sheet metals 42, a third connecting rod 43, a fourth connecting rod 44 and a fifth connecting rod 45 which are respectively arranged on both sides of the bottom of the backrest bracket 41. The middle part of the third connecting rod 43 is rotatably arranged on the seat cushion bracket 21, and one side of the top end of the connecting sheet metal 42 is rotatably connected to the seat cushion bracket 21; one end of the fourth connecting rod 44 is connected to the top of the third connecting rod 43, and the other end is connected to the bottom end of the connecting sheet metal 42, and the angle between the fourth connecting rod 44 and the third connecting rod 43 is facing downward; one end of the fifth connecting rod 45 is connected to the bottom end of the third connecting rod 43, and the other end is connected to the rhythm bracket 12, and the angle between the fifth connecting rod 45 and the third connecting rod 43 is facing one side of the backrest bracket 41, wherein the rotation axes of the third connecting rod 43, the fourth connecting rod 44 and the fifth connecting rod 45 are parallel and all face the horizontal direction. In this way, through the third connecting rod 43, the fourth connecting rod 44 and the fifth connecting rod 45 The seat cushion bracket 21 and the backrest bracket 41 are linked to each other. Specifically, when the seat cushion bracket 21 moves toward the side away from the backrest bracket 41, the third connecting rod 43 rotates (the angle with the horizontal plane gradually increases), causing the fourth connecting rod 44 to move toward the side away from the backrest bracket 41, thereby causing the connecting sheet metal 42 to rotate (the bottom of the connecting sheet metal 42 moves toward the side of the calf bracket 31), causing the backrest bracket 41 to be gradually laid flat (the angle between the backrest bracket 41 and the horizontal plane becomes smaller). Therefore, when the seat cushion bracket 21 moves toward the side away from the backrest bracket 41, the backrest bracket 41 is simultaneously laid flat, and the calf bracket 31 is lifted up, so that the seat cushion bracket 21, the calf bracket 31 and the backrest bracket 41 tend to be in the same horizontal plane, so that the user can lie flat on the sofa; the linkage among the seat cushion bracket 21, the calf bracket 31 and the backrest bracket 41 further increases the convenience and functional diversity of the present application, and brings the user a richer usage experience.

[0050] A further optimization is that when the present application switches to a lying position, the seat cushion bracket 21 slides forward horizontally to provide space for the backrest bracket 41 to lean back, thereby preventing the backrest bracket 41 from contacting the wall.

[0051] Further optimization is that Figure 1 , Figure 2 and Fig.10 As shown, in order to limit the movement of the backrest bracket 41, the backrest bracket mechanism 4 also includes two limiting sheet metals 46. The two limiting sheet metals 46 are arranged on the side of the seat cushion bracket 21 close to the backrest bracket 41. An arc-shaped limiting hole is arranged on the limiting sheet metal 46. A limiting rod is arranged in the middle of the connecting sheet metal 42. The two limiting rods are respectively slidably arranged in the two limiting holes. In this way, the limiting sheet metal 46 can only move under the restriction of the limiting hole, thereby ensuring that the backrest bracket 41 runs more stably.

[0052] In summary: when in use, the user sits on the cushion on the seat support 21, leans on the backrest support 41, and places the calf on the calf support 31, which brings a better use experience to the user; when in use, the first drive component 13 can be used to drive the rhythm support 12 to perform horizontal rhythm, so that the user can perform rhythm together, the seat support 21 can be driven by the second drive component to slide horizontally, and then the user's sitting posture can be adjusted, and the calf support 31 can be driven by the third drive component to rotate (lift or swing), so as to better support the calf of users with different sitting postures; in this way, the present application has various functions and can bring users a more diverse experience;

[0053] In the present application, the seat cushion support 21, the calf support 31 and the backrest support 41 are linked together. When the seat cushion support 21 moves to the side away from the backrest support 41, the backrest support 41 is simultaneously laid flat and the calf support 31 is simultaneously lifted up, so that the seat cushion support 21, the calf support 31 and the backrest support 41 tend to be in the same horizontal plane, so that the user can lie flat on the sofa; this further increases the diversity of the functions of the present application and brings users a richer usage experience.

[0054] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A multifunctional horizontal rhythmic sofa, characterized in that: include: A rhythmic base mechanism (1), a seat cushion support mechanism (2), a calf support mechanism (3) and a backrest support mechanism (4); The rhythmic base mechanism (1) comprises a base (11), a rhythmic support (12) and a first driving component (13); the rhythmic support (12) is arranged on the base (11); and the first driving component (13) is used to drive the rhythmic support (12) to perform horizontal rhythmic motion on the base (11); The seat cushion support mechanism (2) comprises a seat cushion support (21) and a second driving component, wherein the seat cushion support (21) is arranged on the rhythm support (12), and the second driving component is used to drive the seat cushion support (21) to perform horizontal linear motion; The calf support mechanism (3) comprises a calf support (31), and the calf support (31) is rotatably arranged on one side of the seat cushion support (21) via a first rotating connection member; The backrest support mechanism (4) comprises a backrest support (41), and the backrest support (41) is arranged on a side of the seat cushion support 21 away from the calf support (31).

2. The multifunctional horizontal rhythmic sofa according to claim 1, characterized in that: The base (11) is provided with a plurality of limit assemblies, the limit assemblies comprising a limit block (14) and a plurality of bearings (15), a limit channel (16) is horizontally provided on the limit block (14), the rhythmic support (12) is passed through the plurality of limit channels (16), the plurality of bearings (15) are respectively provided at the top, bottom and both sides of the limit block (14), and the annular sides of the plurality of bearings (15) extend into the limit channel (16).

3. The multifunctional horizontal rhythmic sofa according to claim 1, characterized in that: The second driving assembly comprises a first push rod (22), the first push rod (22) is horizontally arranged on the rhythm support (12), and the driving end of the first push rod (22) is connected to the seat cushion support (21).

4. The multifunctional horizontal rhythmic sofa according to claim 1, characterized in that: The third driving assembly comprises a second push rod (32), a movable sheet metal (33) and a movable bracket (34), wherein the bottom end of the movable bracket (34) is rotatably disposed on the seat cushion bracket (21), one end of the movable sheet metal (33) is rotatably disposed on the top end of the movable bracket (34), and the other end is rotatably connected to the middle part of the calf bracket (31), and the angle between the movable sheet metal (33) and the movable bracket (34) is downward; The second push rod (32) is arranged on the seat cushion bracket (21), and the driving end of the second push rod (32) is connected to the middle part of the movable bracket (34).

5. The multifunctional horizontal rhythmic sofa according to claim 1, characterized in that: The calf support mechanism (3) also includes a support plate (35) and a linkage assembly, wherein the support plate (35) is slidably arranged on the calf support (31), and when the calf support (31) is flipped upward, the linkage assembly causes the support plate (35) to slide toward a side away from the seat cushion support (21), and when the calf support (31) is flipped downward, the linkage assembly causes the support plate (35) to slide toward a side close to the seat cushion support (21).

6. The multifunctional horizontal rhythmic sofa according to claim 5, characterized in that: The linkage assembly comprises a first connecting rod (36), a second connecting rod (37) and a pull rod (38), one end of the pull rod (38) is rotatably disposed on the seat cushion bracket (21) via a second rotating connecting member, the middle portion of the first connecting rod (36) is rotatably disposed on the calf bracket (31) via a third rotating connecting member, the suspension end of the pull rod (38) is rotatably connected to one end of the first connecting rod (36), one end of the second connecting rod (37) is connected to the support plate (35), and the other end is connected to one end of the first connecting rod (36) away from the pull rod (38); The horizontal height of the first rotating connection member is higher than the horizontal height of the second connection member, and the position of the second connection member in the vertical direction is closer to one side of the backrest bracket (41) than the position of the first connection member in the vertical direction.

7. The multifunctional horizontal rhythmic sofa according to claim 1, characterized in that: The bottom of the backrest bracket (41) is rotatably arranged on one side of the seat cushion bracket (21).

8. The multifunctional horizontal rhythmic sofa according to claim 7, characterized in that: The backrest bracket mechanism (4) further comprises two connecting sheet metals (42) respectively arranged on both sides of the bottom of the backrest bracket (41), and one side of the top end of the connecting sheet metal (42) is rotatably connected to the seat cushion bracket (21).

9. The multifunctional horizontal rhythmic sofa according to claim 8, characterized in that: The backrest support mechanism (4) further comprises a third connecting rod (43), a fourth connecting rod (44) and a fifth connecting rod (45); the middle portion of the third connecting rod (43) is rotatably disposed on the seat cushion support (21); One end of the fourth connecting rod (44) is connected to the top end of the third connecting rod (43), and the other end is connected to the bottom end of the connecting sheet metal (42); One end of the fifth connecting rod (45) is connected to the bottom end of the third connecting rod (43), and the other end is connected to the rhythmic support (12).

10. The multifunctional horizontal rhythmic sofa according to claim 9, characterized in that: The backrest bracket mechanism (4) also includes two limiting sheet metals (46), the two limiting sheet metals (46) are arranged on one side of the seat cushion bracket (21) close to the backrest bracket (41), the limiting sheet metal (46) is provided with an arc-shaped limiting hole, and a limiting rod is provided in the middle of the connecting sheet metal (42), and the two limiting rods are respectively slidably arranged in the two limiting holes.

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