Linkage adjusting frame and sofa with same

Abstract

When the linkage adjusting frame and the sofa with the linkage adjusting frame are installed, a connecting rod is connected with the bottom of a sofa cushion to achieve movable assembly of the sofa cushion and a base frame, so that the adjustable function of the sofa cushion is achieved, and a linkage frame is connected with a sofa backrest to achieve the adjustable function of the sofa backrest. And the swing frame is connected with the sofa foot support, so that the adjustable function of the sofa foot support is realized. A user can adjust the sofa cushion by himself / herself according to the sitting posture requirement, and the sofa backrest and the sofa foot support are correspondingly and automatically adjusted accordingly. When in use, the sofa is matched with a control system, such as sound control, remote control or switch control, especially the sound control system, so that the sofa is more intelligent, meets the requirements of the society for smart home, is practical, contributed and valuable to the society and consumers, and effectively meets the intelligent requirements of hundreds of millions of consumers for furniture.

Description

Technical Field

[0001] This utility model relates to the field of furniture, and in particular to a linkage adjustment frame and a sofa having the same. Background Technology

[0002] Sofas are a common piece of furniture in people's daily lives, whether at home or in the office. As living standards improve, people have more and more functional needs for sofas. For example, people need sofas with adjustable seating posture.

[0003] Most existing sofas are fixed installations, and the fixed posture can easily cause back pain for users after a long time. At the same time, when adjusting the posture, users often have nowhere to put their feet, or if they put them on ordinary footrests, the footrests will move, affecting the user's experience. In addition, footrests are not easy to store and take up a lot of space in narrow spaces.

[0004] Therefore, the applicant believes there is an urgent need to develop a linkage adjustment frame that allows users to easily adjust their sitting posture, and a sofa with this feature. Utility Model Content

[0005] The main purpose of this utility model is to propose a linkage adjustment frame and a sofa with the same, which is designed to facilitate users in adjusting their sitting posture.

[0006] To achieve the above objectives, this utility model proposes a linkage adjustment frame, comprising:

[0007] Base frame;

[0008] A movable frame for connecting to a sofa cushion, the movable frame being movably mounted on the base frame and capable of reciprocating back and forth relative to the base frame, thereby realizing the reciprocating back and forth movement of the sofa cushion;

[0009] A linkage frame for connecting to a sofa backrest, the linkage frame includes a first connecting arm and a second connecting arm that are hinged together. The free end of the first connecting arm is pivotally connected to the base frame, and the free end of the second connecting arm is pivotally connected to the movable frame. The included angle formed between the first connecting arm and the second connecting arm can expand or shrink as the movable frame reciprocates back and forth.

[0010] A drive mechanism is provided on the base frame, and the drive end of the drive mechanism can move relative to the base frame between a first position, a second position, and a third position;

[0011] A swing frame for connecting to the sofa footrest, the swing frame being movably mounted on the movable frame, and the swing frame being linked to the drive end of the drive mechanism;

[0012] As the drive end of the drive mechanism moves from the first position to the second position, it can drive the swing frame to swing, thus adjusting the sofa footrest. When the drive end of the drive mechanism moves from the second position to the third position, the adjusted swing frame drives the moving frame to move and widens the included angle, thus adjusting the sofa cushion and sofa backrest.

[0013] Preferably, the base frame is provided with a first support plate for pivoting the free end of the first connecting arm, the first support plate is provided with a first limiting member, and the first connecting arm can swing relative to the base frame between positions that abut against and move away from the first limiting member.

[0014] The movable frame is provided with a second support plate for pivoting the free end of the second connecting arm. The second support plate is provided with a second limiting member. The second connecting arm can swing relative to the movable frame between positions that abut against and move away from the second limiting member.

[0015] The first connecting arm is also provided with a third limiting member, which can move between a position away from the second connecting arm and a position that abuts the second connecting arm as the included angle expands and contracts.

[0016] Preferably, the base frame is provided with a roller structure, the movable frame includes a pair of spaced-apart connecting rods, the connecting rods are movably sleeved on the roller structure, the roller structure has multiple sets, distributed at intervals along the movement direction of the connecting rods, the roller structure includes a pivotable upper wheel and a lower wheel, the connecting rod has a hollow structure with a C-shaped cross section, the upper wheel is located inside the connecting rod and rolls with the inner wall of the connecting rod, and the lower wheel rolls with the outer bottom wall of the connecting rod.

[0017] Preferably, the number of the linkage frames is a pair, arranged at left and right intervals, the free ends of the two second connecting arms are pivotally connected to the movable frame, and a first connecting rod is also provided, the two ends of the first connecting rod being fixedly connected to the two first connecting arms respectively.

[0018] Preferably, the swing frame includes a third connecting arm, a fourth connecting arm, a fifth connecting arm, a sixth connecting arm, and a connecting seat for connecting with the sofa footrest;

[0019] The upper end of the third connecting arm is hinged to the movable frame and can swing relative to the movable frame between a position close to the connecting frame and a position far away from the movable frame at its lower end;

[0020] The upper end of the fourth connecting arm is hinged to the movable frame and can swing relative to the movable frame between a position close to the connecting frame and a position far away from the movable frame at its lower end;

[0021] One end of the fifth connecting arm is hinged to the lower end of the third connecting arm, and the other end is hinged to the connecting seat;

[0022] One end of the sixth connecting arm is hinged to the lower end of the fourth connecting arm, and the other end is hinged to the connecting seat;

[0023] The local position between the two ends of the sixth connecting arm is hinged to the local position between the two ends of the third connecting arm.

[0024] Preferably, the movable frame is fixedly provided with connecting parts for pivotally connecting the third connecting arm and the fourth connecting arm respectively.

[0025] Preferably, the upper end of the fourth connecting arm is further provided with a fourth limiting member, which can move between abutting and moving away from the connecting part as the swing frame moves. When the swing frame is retracted, the fourth limiting member abuts against the connecting part. The sixth connecting arm is further provided with a fifth limiting member, which can move between abutting and moving away from the third connecting arm as the swing frame moves. When the swing frame is extended, the fifth limiting member abuts against the third connecting arm.

[0026] Preferably, the number of swing frames is a pair, with the two swing frames movably mounted on the movable frame, and a second connecting rod is also provided. The two ends of the second connecting rod are respectively fixedly connected to the two third connecting arms, and the driving end of the driving mechanism is connected to the second connecting rod.

[0027] Preferably, a tension spring is also provided, the lower end of which is connected to the base frame and the upper end of which is connected to the upper end of the fourth connecting arm. The tension spring is used to apply a spring force to the swing frame to swing in the direction of retracting the sofa footrest.

[0028] This utility model also proposes a sofa, including a linkage adjustment frame, wherein the linkage adjustment frame is the aforementioned linkage adjustment frame.

[0029] This utility model discloses a linkage adjustment frame and a sofa incorporating it. During installation, the connecting rod is connected to the bottom of the sofa cushion, enabling the sofa cushion to be movably assembled with the base frame, thus achieving the adjustable function of the sofa cushion. The linkage frame is connected to the sofa backrest, achieving the adjustable function of the sofa backrest. The swing frame is connected to the sofa footrest, achieving the adjustable function of the sofa footrest. Users can adjust the sofa cushion according to their sitting posture, and the sofa backrest and sofa footrest will automatically adjust accordingly. When in use, it can be paired with a control system, such as voice control, remote control, or switch control. The voice control system, in particular, makes the sofa more intelligent, meeting the social demand for smart homes. It is practical, contributes, and has value to society and consumers, effectively satisfying the intelligent furniture needs of millions of consumers. The overall structure is simple, the roller structure combined with the connecting rod provides high stability, and the sofa backrest and sofa footrest are adjusted in tandem without the need for separate adjustments. The entire unit is composed of multiple detachable and assembleable parts, facilitating transportation and maintenance. Attached Figure Description

[0030] Figure 1 This is a 3D view of the linkage adjustment frame when it is not adjusted.

[0031] Figure 2 This is a schematic diagram of the linkage adjustment frame after adjustment;

[0032] Figure 3 Exploded view of the linkage adjustment frame;

[0033] Figure 4 This is a diagram illustrating the adjustment effects of the sofa. Detailed Implementation

[0034] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0035] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0036] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0037] This utility model proposes a linkage adjustment frame.

[0038] In this embodiment of the utility model, such as Figures 1 to 3 As shown, the linkage adjustment frame includes a base frame 1, a movable frame for connecting with the sofa cushion, a linkage frame for connecting with the sofa backrest, a drive mechanism provided on the base frame 1, and a swing frame for connecting with the sofa footrest.

[0039] The movable frame is movably mounted on the base frame and can reciprocate back and forth relative to the base frame 1, realizing the reciprocating back and forth movement of the sofa cushion; the linkage frame includes a first connecting arm 31 and a second connecting arm 32 hinged together, the free end of the first connecting arm 31 is pivotally connected to the base frame 1, and the free end of the second connecting arm 32 is pivotally connected to the movable frame, the included angle formed between the first connecting arm 31 and the second connecting arm 32 can expand or shrink with the reciprocating back and forth movement of the movable frame; the driving end of the drive mechanism can move relative to the base frame 1 between a first position, a second position, and a third position; the swing frame is movably mounted on the movable frame, and the swing frame is linked to the driving end of the drive mechanism;

[0040] As the drive end of the drive mechanism moves from the first position to the second position, it can drive the swing frame to swing, thus adjusting the sofa footrest. When the drive end of the drive mechanism moves from the second position to the third position, the adjusted swing frame drives the moving frame to move and widens the included angle, thus adjusting the sofa cushion and sofa backrest.

[0041] Specifically, the base frame 1 is provided with a first support plate 33 for pivoting the free end of the first connecting arm 31. The first support plate 33 is provided with a first limiting member 34. The first connecting arm 31 can swing relative to the base frame 1 between positions that abut against and move away from the first limiting member 34.

[0042] The movable frame is provided with a second support plate 35 for pivoting the free end of the second connecting arm 32. The second support plate 35 is provided with a second limiting member 36. The second connecting arm 32 can swing relative to the movable frame between positions that abut against and move away from the second limiting member 36.

[0043] The first connecting arm 31 is also provided with a third limiting member 37, which can move between a position away from the second connecting arm 32 and a position that abuts against the second connecting arm 32 as the included angle expands and contracts.

[0044] Specifically, the base frame is provided with a roller structure, and the movable frame includes a pair of spaced-apart connecting rods 2. The connecting rods 2 are movably sleeved on the roller structure. There are multiple sets of roller structures, which are spaced apart along the movement direction of the connecting rods 2. The roller structure includes a pivotable upper wheel 41 and a lower wheel 42. The connecting rod 2 has a hollow structure with a C-shaped cross-section. The upper wheel 41 is located inside the connecting rod 2 and rolls with the inner wall of the connecting rod 2. The lower wheel 42 rolls with the outer bottom wall of the connecting rod 2.

[0045] Specifically, the two connecting rods 2 can be set with a mirror-image interval or a non-mirror-image interval.

[0046] Specifically, the side opening of the connecting rod 2 is bent to form a limiting part to prevent the upper wheel 41 from disengaging from the inside of the connecting rod 2 through the side opening of the connecting rod 2.

[0047] Specifically, the connecting rod 2 is open at both ends, and the upper wheel 41 enters the interior of the connecting rod 2 through the end opening of the connecting rod 2.

[0048] Specifically, the connecting rod 2 is directly fixedly connected to the sofa cushion, or the two connecting rods 2 are connected together to a connector for fixed connection to the sofa cushion.

[0049] Specifically, the base frame 1 is a frame structure formed by connecting multiple strip components and detachably fixing them with screws or buckles, and the driving mechanism is located inside the frame structure.

[0050] Specifically, there is a pair of linkage frames, spaced apart on the left and right. The free ends of the two second connecting arms 32 are pivotally connected to the two connecting rods 2 respectively. A first connecting rod 38 is also provided, and the two ends of the first connecting rod 38 are fixedly connected to the two first connecting arms 31 respectively.

[0051] Specifically, the two linkage frames can be set with a mirror-image interval or a non-mirror-image interval.

[0052] Specifically, the drive mechanism includes a motor 51 and a lead screw structure. The rotating end of the motor 51 is connected to the lead screw structure and can drive the moving block 52 of the lead screw structure to perform linear reciprocating motion through the rotation of the rotating end.

[0053] Specifically, the swing frame includes a third connecting arm 61, a fourth connecting arm 62, a fifth connecting arm 63, a sixth connecting arm 64, and a connecting seat 65 for connecting with the sofa footrest;

[0054] The upper end of the third connecting arm 61 is hinged to the movable frame and can swing relative to the movable frame between the lower end close to the connecting frame and away from it.

[0055] The upper end of the fourth connecting arm 62 is hinged to the movable frame and can swing relative to the movable frame between the lower end close to the connecting frame and away from it.

[0056] One end of the fifth connecting arm 63 is hinged to the lower end of the third connecting arm 61, and the other end is hinged to the connecting seat 65.

[0057] One end of the sixth connecting arm 64 is hinged to the lower end of the fourth connecting arm 62, and the other end is hinged to the connecting seat 65;

[0058] The local position between the two ends of the sixth connecting arm 64 is hinged to the local position between the two ends of the third connecting arm 61.

[0059] Specifically, the movable frame is fixedly provided with a connecting part 66 for pivotally connecting the third connecting arm 61 and the fourth connecting arm 62 respectively.

[0060] Specifically, the upper end of the fourth connecting arm 62 is also provided with a fourth limiting member 67. The fourth limiting member 67 can move between abutting and moving away from the connecting part 66 as the swing frame moves. When the swing frame is retracted, the fourth limiting member 67 abuts against the connecting part 66. The sixth connecting arm 64 is also provided with a fifth limiting member 68. The fifth limiting member 68 can move between abutting and moving away from the third connecting arm 61 as the swing frame moves. When the swing frame is extended, the fifth limiting member 68 abuts against the third connecting arm 61.

[0061] Specifically, there is a pair of swing frames, with each swing frame movably mounted on one of the two connecting rods 2. A second connecting rod 69 is also provided, with both ends of the second connecting rod 69 fixedly connected to the two third connecting arms 61. The driving end of the driving mechanism is connected to the second connecting rod 69.

[0062] Specifically, a seventh connecting arm 100 is also provided, the two ends of which are respectively hinged to the driving end of the driving mechanism and the connecting bar.

[0063] Specifically, there is a pair of seventh connecting arms 100.

[0064] A tension spring 200 is also provided. The lower end of the tension spring 200 is connected to the base frame 1, and the upper end of the tension spring 200 is connected to the upper end of the fourth connecting arm 62. The tension spring 200 is used to apply a spring force to the swing frame to swing in the direction of retracting the sofa footrest.

[0065] Specifically, the upper end of the fourth connecting arm 62 is pivotally provided with a connecting piece 201, and the free end of the connecting piece 201 is connected to the upper end of the tension spring 200.

[0066] This utility model also proposes a sofa, including a linkage adjustment frame. For the specific structure of the linkage adjustment frame, please refer to the above embodiments. Since this sofa adopts all the technical solutions of all the above-mentioned linkage adjustment frame embodiments, it has at least all the beneficial effects brought about by the above-mentioned linkage adjustment frame technical solutions, which will not be described in detail here.

[0067] For specific details on the sofa's adjustment options, please refer to... Figure 4 As shown.

[0068] It should be noted that the appearance and upholstery of the sofa need to be determined according to specific production requirements, therefore Figure 4 The sofa appearance shown is for reference only.

[0069] The linkage adjustment frame and sofa proposed in this utility model, during installation, connect the connecting rod to the bottom of the sofa cushion, realizing the movable assembly of the sofa cushion and the base frame, thereby enabling the adjustment function of the sofa cushion. Connecting the linkage frame to the sofa backrest enables the adjustment function of the sofa backrest, and connecting the swing frame to the sofa footrest enables the adjustment function of the sofa footrest. Users can adjust the sofa cushion according to their sitting posture needs, and the sofa backrest and sofa footrest will automatically adjust accordingly. When in use, it can be equipped with a control system, such as voice control, remote control, or switch control. The voice control system, in particular, makes the sofa more intelligent, meeting the social demand for smart homes. It is practical, contributes, and has value to society and consumers, effectively satisfying the intelligent furniture needs of millions of consumers. The overall structure is simple, the roller structure combined with the connecting rod provides high stability, and the sofa backrest and sofa footrest are adjusted in tandem without the need for separate adjustments. The whole unit is composed of multiple detachable and assembleable parts, facilitating transportation and maintenance.

[0070] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A linkage adjustment frame, characterized in that, include: Base frame (1); A movable frame for connecting to a sofa cushion, the movable frame is movably mounted on the base frame and can reciprocate back and forth relative to the base frame (1) to realize the reciprocating back and forth movement of the sofa cushion; The linkage frame for connecting to the back of a sofa includes a first connecting arm (31) and a second connecting arm (32) that are hinged together. The free end of the first connecting arm (31) is pivotally connected to the base frame (1), and the free end of the second connecting arm (32) is pivotally connected to the movable frame. The included angle formed between the first connecting arm (31) and the second connecting arm (32) can be expanded or reduced as the movable frame moves back and forth. A drive mechanism is provided on the base frame (1), and the drive end of the drive mechanism can move relative to the base frame (1) between a first position, a second position and a third position; A swing frame for connecting to the sofa footrest, the swing frame being movably mounted on the movable frame, and the swing frame being linked to the drive end of the drive mechanism; As the drive end of the drive mechanism moves from the first position to the second position, it can drive the swing frame to swing, thus adjusting the sofa footrest. When the drive end of the drive mechanism moves from the second position to the third position, the adjusted swing frame drives the moving frame to move and widens the included angle, thus adjusting the sofa cushion and sofa backrest.

2. The linkage adjustment frame as described in claim 1, characterized in that: The base frame (1) is provided with a first support plate (33) for pivoting the free end of the first connecting arm (31). The first support plate (33) is provided with a first limiting member (34). The first connecting arm (31) can swing relative to the base frame (1) between positions that abut against and move away from the first limiting member (34). The movable frame is provided with a second support plate (35) for pivoting the free end of the second connecting arm (32). The second support plate (35) is provided with a second limiting member (36). The second connecting arm (32) can swing relative to the movable frame between positions that are against and away from the second limiting member (36). The first connecting arm (31) is also provided with a third limiting member (37), which can move between a position away from the second connecting arm (32) and a position that abuts against the second connecting arm (32) as the included angle expands and shrinks.

3. The linkage adjustment frame as described in claim 1, characterized in that: The base frame is provided with a roller structure. The movable frame includes a pair of spaced-apart connecting rods (2). The connecting rods (2) are movably sleeved on the roller structure. There are multiple sets of roller structures, which are spaced apart along the movement direction of the connecting rods (2). The roller structure includes a pivotable upper wheel (41) and a lower wheel (42). The connecting rod (2) has a hollow structure with a C-shaped cross section. The upper wheel (41) is located inside the connecting rod (2) and rolls with the inner wall of the connecting rod (2). The lower wheel (42) rolls with the outer bottom wall of the connecting rod (2).

4. The linkage adjustment frame as described in claim 1, characterized in that: The number of the linkage frames is a pair, which are spaced apart on the left and right. The free ends of the two second connecting arms (32) are pivotally connected to the movable frame. A first connecting rod (38) is also provided, and the two ends of the first connecting rod (38) are fixedly connected to the two first connecting arms (31).

5. The linkage adjustment frame as described in claim 1, characterized in that: The swing frame includes a third connecting arm (61), a fourth connecting arm (62), a fifth connecting arm (63), a sixth connecting arm (64), and a connecting seat (65) for connecting with the sofa footrest. The upper end of the third connecting arm (61) is hinged to the movable frame and can swing relative to the movable frame between the lower end close to the connecting frame and away from it. The upper end of the fourth connecting arm (62) is hinged to the movable frame and can swing relative to the movable frame between the lower end close to the connecting frame and away from it. One end of the fifth connecting arm (63) is hinged to the lower end of the third connecting arm (61), and the other end is hinged to the connecting seat (65); One end of the sixth connecting arm (64) is hinged to the lower end of the fourth connecting arm (62), and the other end is hinged to the connecting seat (65); The local position between the two ends of the sixth connecting arm (64) is hinged to the local position between the two ends of the third connecting arm (61).

6. The linkage adjustment frame as described in claim 5, characterized in that: The movable frame is fixedly provided with a connecting part (66) for pivotally connecting the third connecting arm (61) and the fourth connecting arm (62).

7. The linkage adjustment frame as described in claim 6, characterized in that: The upper end of the fourth connecting arm (62) is also provided with a fourth limiting member (67). The fourth limiting member (67) can move between abutting and moving away from the connecting part (66) as the swing frame moves. When the swing frame is retracted, the fourth limiting member (67) abuts against the connecting part (66). The sixth connecting arm (64) is also provided with a fifth limiting member (68). The fifth limiting member (68) can move between abutting and moving away from the third connecting arm (61) as the swing frame moves. When the swing frame is unfolded, the fifth limiting member (68) abuts against the third connecting arm (61).

8. The linkage adjustment frame as described in claim 5, characterized in that: The number of swing frames is a pair, and the two swing frames are movably assembled on the movable frame. A second connecting rod (69) is also provided. The two ends of the second connecting rod (69) are fixedly connected to the two third connecting arms (61) respectively. The driving end of the driving mechanism is connected to the second connecting rod (69).

9. The linkage adjustment frame as described in claim 5, characterized in that: A tension spring (200) is also provided, the lower end of which is connected to the base frame (1), and the upper end of which is connected to the upper end of the fourth connecting arm (62). The tension spring (200) is used to apply a spring force to the swing frame to swing in the direction of retracting the sofa footrest.

10. A sofa, characterized in that: Includes the linkage adjustment frame as described in any one of claims 1 to 9.

Images