Movable furniture assembly and furniture unit

Abstract

The utility model relates to a movable furniture assembly which comprises a supporting frame used for being supported on the ground, and the supporting frame comprises a pair of supporting frame longitudinal beams extending in parallel in the front-back direction of the furniture assembly, a supporting frame front cross beam and a supporting frame rear cross beam, and the supporting frame front cross beam and the supporting frame rear cross beam extend between the supporting frame longitudinal beams. The back-hip assembly at least comprises a back plate and a back-hip connecting rod mechanism, and the back plate can be obliquely lifted and dropped through the back-hip connecting rod mechanism; and a leg assembly. According to the utility model, the back-hip assembly and the leg assembly are connected to a common sliding frame, the sliding frame is supported on the supporting frame in a sliding manner, the back-hip connecting rod mechanism is pivotally connected to the supporting frame and the sliding frame, and the back-hip connecting rod mechanism is pivotally connected to the supporting frame and the sliding frame. Therefore, the sliding frame slides relative to the supporting frame in the inclined lifting and falling process of the back plate. In addition, the utility model further relates to a furniture unit.

Description

Technical Field

[0001] The utility model relates to a movable furniture component and a furniture unit. Background Art

[0002] With the improvement of people's living standards, various furniture used in life has become more intelligent and comfortable. Electric furniture, especially electric sofas and electric folding beds, has also been widely used. For example, a "chaise longue" is configured in an electric sofa to meet people's dual sitting and lying needs. By arranging a motor under the seat part of the furniture to drive and control the rotation and lifting of the seat part, the shape of the seat part is adjusted according to people's needs to adapt to people's sitting and lying postures.

[0003] However, in the existing furniture designs, there are often deficiencies in terms of comfort and convenience. For example, either the posture transformation of the movable parts is not rich enough to meet the needs of various sitting and lying postures, or the mechanical structure is too complex. Summary of the Utility Model

[0004] In view of this, the technical problem actually to be solved by the utility model is to provide a furniture that is both ergonomically comfortable and structurally optimized.

[0005] To solve the above technical problem, the utility model provides a movable furniture component, including: a support frame for supporting on the ground, which includes a pair of support frame longitudinal beams extending parallel to each other in the front-back direction of the furniture component, a support frame front cross beam and a support frame rear cross beam extending between the support frame longitudinal beams; a back and hip component, which at least includes a back panel and a back and hip link mechanism, wherein the back panel can be tilted up and down by using the back and hip link mechanism; and a leg component. According to the utility model, the back and hip component and the leg component are connected to a common sliding frame, and the sliding frame is slidably supported on the support frame, wherein the back and hip link mechanism is pivotally connected to the support frame and the sliding frame, so that the sliding frame slides relative to the support frame during the process of the back panel tilting up and down.

[0006] On the one hand, the sliding frame is slidably supported on the support frame, and on the other hand, it is connected to the back and hip assembly and the leg assembly. Thus, the back and hip assembly and the leg assembly can slide together with the sliding frame on the support frame; at the same time, the back and hip link mechanism acts between the sliding frame and the support frame, so as to realize the attitude change of the back panel while the sliding frame slides along the support frame. The sliding of the sliding frame along the support frame prompts the back and hip link mechanism to adjust the back panel, without affecting the attitude change of the leg assembly itself. The attitude adjustment of the leg assembly and the adjustment of the back and hip assembly are thus independent of each other and do not affect each other. This design method reduces the interference between movable parts and realizes more furniture postures with a simple mechanical connection structure.

[0007] Preferably, the sliding frame includes a pair of sliding frame longitudinal beams extending parallel to each other in the front-rear direction of the furniture assembly, a sliding frame front cross beam and a sliding frame rear cross beam extending between the sliding frame longitudinal beams.

[0008] Preferably, the back and hip link mechanism at least includes a first back and hip link and a second back and hip link. Among them, the front end of the first back and hip link is pivotally connected to the back panel, and the rear end is pivotally connected to the sliding frame. The front end of the second back and hip link is pivotally connected to the support frame, and the rear end is pivotally connected to the middle part of the first back and hip link.

[0009] Preferably, the front end of the second back and hip link is pivotally connected to the front cross beam of the support frame.

[0010] Preferably, the back and hip link mechanism further includes a back and hip synchronous link, which extends perpendicular to the front-rear direction of the furniture assembly and is pivotally connected to the sliding frame longitudinal beams at both ends. Among them, the rear end of the first back and hip link is connected to the middle part of the back and hip synchronous link.

[0011] Preferably, the support frame longitudinal beam includes a guiding groove, and the sliding frame longitudinal beam is provided with a sliding member adapted to the guiding groove. Among them, the sliding member is slidably supported in the guiding groove, so as to realize the sliding of the sliding frame relative to the support frame.

[0012] In one embodiment, the sliding member is configured as a roller. Alternatively, the sliding member is configured as a slider.

[0013] Preferably, the guiding groove opens inward along the side of the furniture assembly.

[0014] In one embodiment, the back panel is integrally constructed.

[0015] In an alternative embodiment, the backrest is constructed in multiple pieces, wherein the backrest includes an upper backrest and a lower backrest that are connected to each other. Preferably, the upper backrest and the lower backrest are pivotally connected to each other, wherein the first back hip link includes a middle protrusion, wherein the front end portion of the first back hip link is pivotally connected to the back side of the upper backrest, and the middle protrusion abuts against the back side of the lower backrest. Preferably, the middle protrusion is configured as a roller.

[0016] The two-piece backrest can be made longer, where the upper backrest can be used to support the user's head and the lower backrest can be used to support the user's back. The upper backrest and the lower backrest are pivotally connected to each other. To prevent accidental bending, a middle protrusion preferably configured as a roller is provided in the middle of the first back hip link to abut against the back side of the lower backrest, preventing the lower backrest and the upper backrest from accidentally bending and keeping them in the same plane even in the tilted and lifted state.

[0017] Preferably, the back hip assembly further includes a hip plate, wherein the hip plate is fixedly connected to the sliding frame.

[0018] Preferably, the furniture assembly includes a lumbar and hip drive device that causes the backrest to change between a flat position and an inclined position relative to the hip plate and causes the sliding frame to slide relative to the support frame.

[0019] Preferably, the lumbar and hip drive device acts between the support frame and the sliding frame.

[0020] Preferably, the lumbar and hip drive device is configured as a linear actuator, one end of which is connected to the rear cross beam of the support frame and the other end of which is connected to the front cross beam of the sliding frame. Alternatively, the lumbar and hip drive device can also connect one end to the rear cross beam of the support frame and the other end to the rear cross beam of the sliding frame.

[0021] Preferably, when the backrest changes between a flat position and an inclined position, the angle formed between the backrest and the hip plate changes by at least 60°, and preferably, the angle formed between the backrests changes by at least 90°.

[0022] Preferably, the leg assembly includes a first leg plate, a second leg plate, and a leg linkage mechanism that enables the first leg plate and the second leg plate to be lifted and lowered relative to the sliding frame.

[0023] Preferably, the leg linkage assembly includes a first leg link and a second leg link, wherein the first leg link is pivotally connected to the sliding frame at its front end and connected to the first leg plate at its rear end, and the second leg link is pivotally connected to the sliding frame at its front end and connected to the second leg plate at its rear end.

[0024] Preferably, the leg link assembly further includes a leg synchronization link which extends perpendicular to the front-back direction of the furniture assembly and is pivotally connected to the longitudinal beam of the sliding frame at both of its ends, wherein the first leg link is connected to the middle part of the leg synchronization link at its front end.

[0025] Preferably, the rear end of the first leg link is slidably connected to the first leg plate.

[0026] Preferably, the first leg plate includes a guiding portion, and the front end of the first leg link includes a guiding member which is slidably supported on the guiding portion, thereby realizing the sliding connection between the first leg link and the first leg plate.

[0027] Preferably, the guiding portion is configured as a slide rail, and the guiding member is configured as a roller. Alternatively, the guiding member can also be configured as a slider.

[0028] Preferably, the front end of the second leg link is pivotally connected to the rear cross beam of the sliding frame.

[0029] Preferably, the furniture assembly further includes a leg driving device which causes the leg assembly to transform between an extended position and a folded position. When the leg assembly transforms from the extended position to the folded position, in the folded position, the first leg plate and the second leg plate form a smaller angle than in the extended position, and the angle formed by the first leg plate and the sliding frame is larger than the angle formed by the second leg plate and the sliding frame.

[0030] Preferably, the leg driving device acts between the sliding frame and the leg link assembly.

[0031] Preferably, the leg driving device is configured as a linear driver, one end of which is connected to the rear cross beam of the sliding frame and the other end of which is connected to the leg synchronization link.

[0032] Preferably, when transforming from the extended position to the folded position, the rear end of the second leg plate is raised by at least 450 mm, preferably at least 500 mm.

[0033] The present utility model also relates to a furniture unit which includes the above-mentioned furniture assembly.

[0034] Preferably, the furniture unit is a movable sofa or a movable bed. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The embodiments of the present utility model will be elaborated in detail with the aid of the attached drawings below.

[0036] Figure 1Schematically shows a side view of a movable furniture assembly according to the present utility model, in a reclined position;

[0037] Figure 2 Shows Figure 1 Another side view of the shown furniture assembly, with its back and hip assembly in a flat position and its leg assembly in a folded position;

[0038] Figure 3 Shows Figure 1 Another side view of the shown furniture assembly, in a TV position;

[0039] Figure 4 Shows Figure 1 Another side view of the shown furniture assembly, in a sitting position;

[0040] Figure 5 Schematically shows a perspective view of a movable furniture assembly according to the present utility model, in a reclined position;

[0041] Figure 6 Shows Figure 1 Another perspective view of the shown furniture assembly, with its back and hip assembly in a flat position and its leg assembly in a folded position;

[0042] Figure 7 Shows Figure 1 Another perspective view of the shown furniture assembly, in a TV position;

[0043] Figure 8 Shows Figure 1 Another perspective view of the shown furniture assembly, in a sitting position;

[0044] Figure 9 Schematically shows a top view of a furniture assembly according to the present utility model, in a reclined position;

[0045] Figure 10 Schematically shows Figure 9 Another top view of the shown furniture assembly, in a TV position; and

[0046] Figure 11 Schematically shows Figure 9 Another top view of the shown furniture assembly, in a sitting position. Detailed implementation

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0048] As used herein, "one embodiment" or "an embodiment" refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present utility model. In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is 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 should not be construed as a limitation of 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 quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. Moreover, the terms "first", "second", etc. are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present utility model described herein can be implemented in an order other than those illustrated or described herein.

[0049] In the context of the present utility model, "upper end portion" and "upper portion" refer to the part of the furniture that is close to or faces the user; "lower end portion" and "lower portion" refer to the part of the furniture that is close to or faces the ground; "upper surface" and "top side" refer to the surface of the bed that faces the user in the normal use state; "lower surface" and "back side" refer to the surface of the bed that faces the ground in the normal use state; "front" and "front portion" refer to the direction close to or facing the user's head in the use state of the furniture; "rear" and "rear portion" refer to the direction close to or facing the user's legs in the use state of the furniture.

[0050] Figures 1 to 11 The movable furniture component shown can be used for a movable sofa, such as a "chaise longue" configured as a sofa. Alternatively, it can also be used for a bed, such as a foldable bed.

[0051] The movable furniture includes a support frame 1, a waist and hip assembly 2 movable relative to the support frame 1, a leg assembly 3, and a sliding frame 4. The support frame 1 is fixedly supported on the ground. The waist and hip assembly 2 and the leg assembly 3 are connected to the sliding frame 4, and the sliding frame 4 is slidably supported on the support frame 1. The waist and hip assembly 2 can be transformed between a flattened position and an inclined position, and the leg assembly 3 can be transformed between an extended position and a folded position. Thus, the bed is configured to be able to change between a lying position and a sitting position in multiple postures. As Figure 1 , Figure 5 and Figure 9 shown, the furniture is in the lying position, in which the waist and hip assembly 2 is in the flattened position and the leg assembly 3 is in the extended position. As Figure 3 , Figure 7 and Figure 10 shown, the waist and hip assembly 2 is in the inclined position, and the leg assembly 3 is still in the extended position. As Figure 4 , Figure 8 and Figure 11 shown, the furniture is in the sitting position, the waist and hip assembly 2 is in the inclined position, and the leg assembly 3 is in the folded position. As Figure 2 and Figure 6 shown, only the leg assembly 3 is in the folded position, while the waist and hip assembly 2 remains in the flattened position.

[0052] The support frame 1 includes at least two support frame longitudinal beams 11 that are opposed to each other and extend in parallel, a support frame front cross beam 12 that transversely connects the two support frame longitudinal beams 11, and a support frame rear cross beam 13. In addition, the support frame 1 further includes at least four support legs 14. Thus, a stable support frame is formed to fixedly support on the ground.

[0053] The sliding frame 4 includes two sliding frame longitudinal beams 41 that are opposed to each other and extend in parallel, a sliding frame front cross beam 42 and a sliding frame rear cross beam 43 that transversely connect the two sliding frame longitudinal beams 41. At least two sliding members (412) are provided on the sliding frame longitudinal beams 41. Correspondingly, the support frame longitudinal beams 11 of the support frame include guiding grooves 112 that open inward laterally. The sliding members 412 are slidably supported in the guiding grooves 112, thereby allowing the sliding frame 4 to slide relative to the support frame 1. In this embodiment, the sliding members 412 are configured as rollers, thereby reducing the friction between the sliding frame 4 and the support frame 1.

[0054] The waist-hip assembly 2 includes a backrest plate 21 and a hip plate 22 arranged in sequence along the front-back direction of the furniture assembly. In this embodiment, the backrest plate 21 is constructed in a two-piece manner, which includes an upper backrest plate 21a and a lower backrest plate 21b that are pivotally connected. Among them, in the use state, the upper backrest plate 21a is used to support the user's head, and the lower backrest plate 21b is used to support the user's back. The waist-hip assembly 2 further includes a waist-hip link mechanism 23 having a plurality of links. Among them, the backrest plate 21 is movably supported between the sliding frame 4 and the support frame 1 through the waist-hip link mechanism 23, while the hip plate 22 is fixedly installed relative to the sliding frame 4.

[0055] The waist-hip link structure 23 includes two opposed first waist-hip links 231, opposed second waist-hip links 232, and a waist-hip synchronous link 233 that is horizontally fixedly connected between the two first waist-hip links 231. The upper end of the first waist-hip link 231 is pivotally connected to the back side of the upper backrest plate 21a by means of an intermediate link 234, and its lower end is fixedly connected to the middle part of the waist-hip synchronous link 233. Among them, the two ends of the waist-hip synchronous link 233 are fixedly connected to the sliding frame longitudinal beam 41 of the sliding frame 4. In the case where the backrest plate 21 is constructed in a two-piece manner, in order to prevent the upper backrest plate 21a and the lower backrest plate 21b from accidentally rotating relative to each other, the first waist-hip link 231 includes a middle convex part 231a, and the middle convex part 231a is constructed as a roller. The middle convex part 231a abuts against the back side of the lower backrest plate 21b, so that the upper backrest plate 21a and the lower backrest plate 21b are kept in the same plane and will not be bent by accidental pivoting. For the integrally constructed backrest plate 21, this middle convex part plays a strengthening role to prevent the backrest plate 21 from bending. The front end of the second waist-hip link 232 is pivotally connected to the front cross beam 12 of the support frame, and its rear end is pivotally connected to the middle part of the first waist-hip link 231.

[0056] The furniture assembly is configured with a waist-hip driving device 51 for promoting the movement of the backrest plate 21. Through the waist-hip driving device 51, the sliding frame 4 can be pushed to slide relative to the support frame 1 along the front-back direction of the furniture assembly, and the waist-hip link mechanism 23 is driven, so as to cause the backrest plate 21 to tilt up or down while sliding relative to the support frame 1 along with the sliding frame 4.

[0057] The waist-hip driving device 51 is constructed as a linear actuator, which includes a motor head and a motor actuating rod that can move telescopically relative to the motor head. The motor head is connected to the front cross beam 42 of the sliding frame, and the motor actuating rod is connected to the rear cross beam 13 of the support frame. Of course, the motor head and the motor actuating rod can also be installed reversely, that is, the motor head is connected to the rear cross beam 13 of the support frame, and the motor actuating rod is connected to the front cross beam 42 of the sliding frame.

[0058] In the flattened position of the waist-hip assembly 2, the lumbar plate 21 and the hip plate 22 are flatly attached to the sliding frame 4, and the lumbar plate 21 and the hip plate 22 are in the same plane, that is, the angle α between them is 180°. When the waist-hip assembly 2 is changed from the flattened position to the inclined position, the motor actuating rod of the waist-hip driving device 51 extends relative to the motor, thereby pushing the front cross beam 42 of the sliding frame forward relative to the rear cross beam 13 of the support frame, so that the angle between the first waist-hip link 231 and the second waist-hip link 232 is reduced, and the back plate 21 is urged to tilt upward at its front end, so as to reach the inclined position of the waist-hip assembly 2. In the inclined position of the waist-hip assembly 2, the angle α between the lumbar plate 21 and the hip plate 22 can be reduced by at least 60°, preferably 90°. For example, in the inclined position of the waist-hip assembly 2, the angle α between the lumbar plate 21 and the hip plate 22 can be 120°.

[0059] The leg assembly 3 includes a first leg plate 31 and a second leg plate 32 arranged in sequence along the front-rear direction of the furniture assembly, and includes a leg link mechanism 33 having a plurality of links. Among them, the first leg plate 31 is adjacent to the hip plate 22 and roughly corresponds to the position of the user's thigh, and the second leg plate 32 corresponds to the position of the user's calf. The leg link mechanism 33 is configured to drive the first leg plate 31 and the second leg plate 32 to move relative to the sliding frame 4, and further urge the first leg plate 31 and the second leg plate 32 to lift and lower, so that the leg assembly 3 is changed between the extended position and the folded position.

[0060] The leg link mechanism 33 includes two oppositely arranged first leg links 331, second leg links 322 and a leg synchronizing link 333 transversely connected between the two first leg links 331. The upper end of the first leg link 331 includes a guide member 331a. Preferably, the guide member 331a is configured as a roller. Correspondingly, a guide portion 311 for its adaptation is provided on the back side of the first leg plate 31. The guide member 331a is slidably supported on the guide portion 331. The lower end of the first leg link 331 is fixedly connected to the middle of the leg synchronizing link 333, and both ends of the leg synchronizing link 333 are pivotally connected to the longitudinal beam 41 of the sliding frame by pivot members. The front end of the second leg link 332 is connected to the rear cross beam 43 of the sliding frame, and the rear end thereof is pivotally connected to the back side of the second leg plate 32.

[0061] The furniture assembly is provided with a leg driving device 52 for the leg assembly 3. The leg driving device 52 works independently of the waist-hip driving device 51, so that the leg assembly 3 and the waist-hip assembly 2 are adjusted independently of each other. The leg driving device 52 can urge the leg assembly 3 to be changed between the extended position and the folded position.

[0062] The leg drive device 52 is configured as a linear drive, which includes a motor head and a motor actuating rod that can telescopically move relative to the motor head. The motor head is connected to the rear cross beam 43 of the sliding frame, and the motor actuating rod is connected to the leg synchronization link 333. For this purpose, the leg synchronization link 333 further includes an upwardly pointing protrusion 333a, and the motor head is pivotally connected to the free end of the protrusion 333a, so as to be able to drive the leg synchronization link 333 itself to rotate, thereby driving the first leg link 331 to swing. Of course, the motor head and the motor actuating rod can also be installed reversely, that is, the motor head is connected to the leg synchronization link 333, and the motor actuating rod is connected to the rear cross beam 43 of the sliding frame.

[0063] In the extended position of the leg assembly 3, the first leg plate 31 and the second leg plate 33 are flatly attached to the sliding frame 4, and the first leg plate 31 and the second leg plate 33. When the leg assembly 3 changes from the extended position to the folded position, the motor actuating rod of the leg drive device 52 extends relative to the motor head, thereby applying a thrust on the protrusion 333a, causing the leg synchronization link 333 to rotate, and driving the first leg link 331 to swing upward, so that the first leg plate 31 tilts upward. At the same time, the second leg plate 32 rises with the first leg plate 31, thereby achieving the folded position. In the folded position, the first leg plate 31 and the second leg plate 32 form a smaller angle than in the extended position, and the angle formed by the first leg plate 31 and the sliding frame 4 is larger than the angle formed by the second leg plate 32 and the sliding frame 4. In particular, as Figure 2 and Figure 4 shown, the second leg plate 32 is parallel to the sliding frame 4. And when changing from the extended position to the folded position, the rear end of the second leg plate is raised by at least 450 mm, preferably at least 500 mm. For example, in the extended position, both the first leg plate 31 and the second leg plate 32 are closely attached to the sliding frame 4, so that the height H between the rear end of the second leg plate 32 and the sliding frame 4 is 0 mm; while in the folded position, the rear end of the first leg plate 31 tilts upward, so as to be inclined and raised. The angle formed by the second leg plate 32 and the sliding frame 4 is significantly smaller than the angle formed by the first leg plate 31 and the sliding frame 4, and even the second leg plate 32 extends parallel to the sliding frame 4. Among them, the height H between the rear end of the second leg plate 32 and the sliding frame 4 is 450 mm, preferably 500 mm.

[0064] As described above, the waist and hip drive device 51 and the leg drive device 52 work independently of each other, so that the waist and hip assembly 2 and the leg assembly 3 change postures independently of each other.

[0065] For example, when neither the waist and hip drive device 51 nor the leg drive device 52 is working, the waist and hip assembly 2 is in the flat position, and the leg assembly 3 is in the extended position. The furniture assembly as a whole is in a state as Figure 1The lying position shown. At this time, the lumbar plate 21, the hip plate 22, the first leg plate 31 and the second leg plate 32 are substantially in the same plane.

[0066] When only the leg driving device 52 operates, the lumbar and hip assembly 2 remains in the flat position, while the leg assembly 3 transforms to the folded position, as Figure 2 shown.

[0067] When only the lumbar and hip driving device 51 operates, the leg assembly 3 remains in the extended position, while the lumbar and hip assembly 2 transforms to the inclined position, and the furniture assembly as a whole is in Figure 3 the TV position shown.

[0068] When both the lumbar and hip driving device 51 and the leg driving device 52 operate, the lumbar and hip assembly 2 transforms to the inclined position, and the leg assembly 3 also transforms to the folded position, and the furniture assembly as a whole is in Figure 4 the sitting position shown.

Claims

1. A movable furniture component, comprising: - A support frame for supporting on the ground, which includes a pair of support frame longitudinal beams extending parallel to each other in the front - rear direction of the furniture component, a support frame front cross - beam and a support frame rear cross - beam extending between the support frame longitudinal beams; - A back - hip component, which at least includes a back plate and a back - hip link mechanism, wherein, by using the back - hip link mechanism, the back plate can be tilted up and down; and - A leg component, Characterized in that the back - hip component and the leg component are connected to a common sliding frame, the sliding frame is slidably supported on the support frame, wherein the back - hip link mechanism is pivotally connected to the support frame and the sliding frame, so that the sliding frame slides relative to the support frame during the process of the back plate tilting up and down.

2. The furniture component according to claim 1, characterized in that, The sliding frame includes a pair of sliding frame longitudinal beams extending parallel to each other in the front - rear direction of the furniture component, a sliding frame front cross - beam and a sliding frame rear cross - beam extending between the sliding frame longitudinal beams.

3. The furniture component according to claim 2, wherein, The back - hip link mechanism at least includes a first back - hip link and a second back - hip link, wherein the first back - hip link is pivotally connected to the back plate at its front end and pivotally connected to the sliding frame at its rear end, and the second back - hip link is pivotally connected to the support frame at its front end and pivotally connected to the middle part of the first back - hip link at its rear end.

4. The furniture component according to claim 3, wherein, The second back - hip link is pivotally connected to the support frame front cross - beam at its front end.

5. The furniture component according to claim 3, characterized in that, The back - hip link mechanism further includes a back - hip synchronous link, the back - hip synchronous link extends perpendicular to the front - rear direction of the furniture component, and is pivotally connected to the sliding frame longitudinal beams at its two ends, wherein the rear end of the first back - hip link is connected to the middle part of the back - hip synchronous link.

6. The furniture component according to claim 2, characterized in that, The support frame longitudinal beam includes a guiding groove, and a sliding member on the sliding frame longitudinal beam adapted to the guiding groove, wherein the sliding member is movably supported in the guiding groove, so as to realize the sliding of the sliding frame relative to the support frame.

7. The furniture component according to claim 6, characterized in that, The sliding member is configured as a roller.

8. The furniture component according to claim 6, characterized in that, The sliding member is configured as a slider.

9. The furniture component according to claim 6, wherein The guiding groove opens inward along the lateral direction of the furniture component.

10. The furniture component according to claim 1, characterized in that, The back plate is integrally constructed.

11. The furniture component according to claim 3, characterized in that, The back plate is constructed in multiple parts, wherein the back plate includes an upper back plate and a lower back plate connected to each other.

12. The furniture component according to claim 11, characterized in that, The upper back plate and the lower back plate are pivotally connected to each other, wherein the first back - hip link includes a middle protrusion, wherein the front end of the first back - hip link is pivotally connected to the back side of the upper back plate, and the middle protrusion abuts against the back side of the lower back plate.

13. The furniture component according to claim 12, wherein, The middle protrusion is configured as a roller.

14. The furniture component according to claim 2, wherein, The back - hip component further includes a hip plate, wherein the hip plate is fixedly connected to the sliding frame.

15. The furniture component according to claim 14, wherein The furniture component includes a lumbar - hip driving device, by which the back plate is urged to change between a flat position and an inclined position relative to the hip plate, and the sliding frame is urged to slide relative to the support frame.

16. The furniture component according to claim 15, characterized in that, The lumbar - hip driving device acts between the support frame and the sliding frame.

17. The furniture component according to claim 16, wherein, The lumbar - hip driving device is configured as a linear actuator, one end of which is connected to the support frame rear cross - beam, and the other end is connected to the sliding frame front cross - beam.

18. The furniture component according to claim 15, characterized in that, When the back panel transforms between a flat position and an inclined position, the angle formed between the back panel and the hip panel changes by at least 60°.

19. The furniture component according to claim 2, wherein The leg assembly includes a first leg plate, a second leg plate, and a leg linkage mechanism. Through the leg linkage mechanism, the first leg plate and the second leg plate can be lifted and lowered relative to the sliding frame.

20. The furniture component according to claim 19, characterized in that, The leg linkage assembly includes a first leg linkage and a second leg linkage. Among them, the front end of the first leg linkage is pivotally connected to the sliding frame, and the rear end thereof is connected to the first leg plate. The front end of the second leg linkage is pivotally connected to the sliding frame, and the rear end thereof is connected to the second leg plate.

21. The furniture assembly according to claim 20, wherein, The leg linkage assembly further includes a leg synchronization linkage. The leg synchronization linkage extends perpendicular to the front-back direction of the furniture assembly and is pivotally connected to the longitudinal beam of the sliding frame at both ends. Among them, the front end of the first leg linkage is connected to the middle of the leg synchronization linkage.

22. The furniture assembly according to claim 20, wherein, The rear end of the first leg linkage is slidably connected to the first leg plate.

23. The furniture assembly according to claim 22, wherein, The first leg plate includes a guiding portion, and the front end of the first leg linkage includes a guiding member. The guiding member is slidably supported on the guiding portion, thereby realizing the sliding connection between the first leg linkage and the first leg plate.

24. The furniture component according to claim 23, wherein The guiding portion is configured as a slide rail, and the guiding member is configured as a roller.

25. The furniture component according to claim 19, characterized in that, The front end of the second leg linkage is pivotally connected to the rear cross beam of the sliding frame.

26. The furniture component according to claim 21, wherein, The furniture assembly further includes a leg driving device. Through the leg driving device, the leg assembly is urged to transform between an extended position and a folded position. When the leg assembly transforms from the extended position to the folded position, in the folded position, the first leg plate and the second leg plate form a smaller angle than in the extended position, and the angle formed between the first leg plate and the sliding frame is larger than the angle formed between the second leg plate and the sliding frame.

27. The furniture component according to claim 26, characterized in that, The leg driving device acts between the sliding frame and the leg linkage assembly.

28. The furniture assembly according to claim 27, characterized in that, The leg driving device is configured as a linear actuator, one end of which is connected to the rear cross beam of the sliding frame, and the other end is connected to the leg synchronization linkage.

29. The furniture assembly according to claim 26, wherein, When transforming from the extended position to the folded position, the rear end of the second leg plate is raised by at least 450 mm.

30. A furniture unit, characterized in that, The furniture unit includes the furniture assembly according to any one of the above claims.

31. The furniture unit according to claim 30, characterized in that, The furniture unit is a movable sofa or a movable bed.

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