High-efficiency electric sofa lying driving connecting rod

Abstract

The utility model provides a high-efficiency electric sofa lying driving connecting rod, which solves the problems of structural stability and the like of the driving connecting rod, and comprises a driving bracket which is provided with a pair of parallel supporting rods and frame rods connected between the two ends of the supporting rods, wherein one supporting rod is fixedly connected with the frame rod, the other supporting rod is rotationally connected with the frame rod, the two ends of the supporting rod rotationally connected with the frame rod are rotationally connected with supporting bases respectively, elastic reset pieces are connected between the supporting bases and the supporting rods, and an electric push rod is hinged to the middle of the other supporting rod. The telescopic end of the electric push rod is movably connected with the supporting rod where the supporting base is located through a linkage assembly. The utility model has the advantages of good structural stability, high supporting strength and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric sofas, and particularly relates to a high-efficiency electric sofa reclining drive connecting rod. Background Art

[0002] Function sofas are based on ordinary sofas and have added functions of posture adjustment and shape change. They can meet various needs such as sitting and lying, rocking and rotating, lifting, etc., and can relax the body to achieve a zero-load state. Common function sofas include manual stretching and electric stretching. Electric stretching drives the alloy telescopic frame to move through an electric switch to drive the motor, and the operation is fast and accurate. Manual stretching uses a manual switch and back pressure to adjust the movement of the alloy telescopic frame, which is similar to the seats on high-speed trains. However, in the actual use process, the driving connecting rod structure adopted by the existing electric sofas has poor stability, and the strength of its support structure cannot be guaranteed during the driving process.

[0003] In order to solve the deficiencies of the existing technology, people have carried out long-term explorations and proposed various solutions. For example, a Chinese patent document discloses an electric sofa frame [201510451426.3], which includes a base bracket, a footrest pushing mechanism, a footrest mechanism, a backrest mechanism, and an electric push rod. The footrest pushing mechanism is connected to the footrest mechanism and the backrest mechanism, and the electric push rod drives the backrest mechanism; the base bracket includes a base placed at the bottom, a support assembly, side plates, and a seat plate. The footrest pushing mechanism includes a first footrest push rod, a swing rod, and a second footrest push rod. The footrest mechanism includes a connecting rod assembly and a footrest board. The backrest mechanism includes a connecting pipe, a first pin, a backrest support plate, and a second pin.

[0004] The above solution solves the problem of electric sofa control to a certain extent, but this solution still has many deficiencies, such as the unstable support structure of the driving connecting rod and other problems. Summary of the Invention

[0005] The purpose of the utility model is to solve the above problems and provide a high-efficiency electric sofa reclining drive connecting rod with reasonable design and stable support structure.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions: A high-efficiency electric sofa reclining drive connecting rod includes a drive bracket. The drive bracket has a pair of parallel support rods and a frame rod connected between the two ends of the support rods. One of the support rods is fixedly connected to the frame rod, and the other support rod is rotatably connected to the frame rod. Support seats are respectively rotatably connected to both ends of the support rod rotatably connected to the frame rod. An elastic reset member is connected between the support seat and the support rod. The middle of the other support rod is hinged with an electric push rod, and the telescopic end of the electric push rod is movably connected to the support rod where the support seat is located through a linkage assembly.

[0007] In the above-mentioned high-efficiency electric sofa reclining drive link, the linkage assembly includes a linkage shaft connected to the telescopic end of the electric push rod. The linkage shaft is connected to a hinge seat fixed on the support rod; an arc-shaped assembly groove is formed on the hinge seat, and a locking sleeve is slidably installed in the assembly groove. The linkage shaft is rotatably connected to the locking sleeve, and a locking assembly is provided between the locking sleeve and the assembly groove.

[0008] In the above-mentioned high-efficiency electric sofa reclining drive link, the locking assembly includes locking teeth arranged on the inner side of the assembly groove. A locking block meshing with the locking teeth is slidably installed on the locking sleeve, and an elastic resetting member is connected between the locking block and the locking sleeve.

[0009] In the above-mentioned high-efficiency electric sofa reclining drive link, the support rod adopts a rectangular tube structure, and adapter seats extending outward are respectively arranged at both ends of the support rod.

[0010] In the above-mentioned high-efficiency electric sofa reclining drive link, folding portions are respectively arranged at both ends of the frame rod, and a frame groove and a frame hole are formed on the frame rod.

[0011] In the above-mentioned high-efficiency electric sofa reclining drive link, the support seat includes a first support plate and a second support plate vertically arranged relative to the first support plate. The second support plate is rotatably connected to the support rod.

[0012] In the above-mentioned high-efficiency electric sofa reclining drive link, a reinforcing rod is connected between the support seats, and a reinforcing arm is rotatably connected between the reinforcing rod and the support rod.

[0013] In the above-mentioned high-efficiency electric sofa reclining drive link, angle sensors are respectively installed between the reinforcing arm and the reinforcing rod and the support rod.

[0014] In the above-mentioned high-efficiency electric sofa reclining drive link, the drive bracket is coated with a corrosion-resistant layer.

[0015] In the above-mentioned high-efficiency electric sofa reclining drive link, the electric push rod is driven by a servo motor.

[0016] Compared with the existing technology, the advantages of the present utility model are as follows: The drive bracket and the support seat form a multi-link structure. Among them, the electric push rod takes into account both the driving and supporting functions, and cooperates with the elastic resetting member to ensure the structural stability of its driving process; the linkage assembly is equipped with a locking assembly, and its moving angle can be adjusted according to actual needs, so as to adapt to the requirements of different electric sofa conditions; a sensing element is arranged between the support seat and the drive bracket, and forms a feedback adjustment with the electric push rod, so as to ensure the control accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 It is another structural schematic diagram of the utility model;

[0019] Figure 3 It is a partial enlarged view of the utility model;

[0020] In the figure, drive bracket 1, support rod 2, adapter seat 21, frame rod 3, folding part 31, frame groove 32, frame hole 33, support seat 4, first support plate 41, second support plate 42, electric push rod 5, linkage assembly 6, linkage shaft 61, hinge seat 62, assembly groove 63, locking sleeve 64, locking tooth 65, locking block 66, reinforcement rod 7, reinforcement arm 71. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] like Figures 1-3 As shown, a high-efficiency electric sofa reclining driving connecting rod comprises a driving bracket 1 made of stainless steel or aluminum alloy, the driving bracket 1 has a pair of parallel support rods 2 and a frame rod 3 connected between the two ends of the support rods 2, the driving bracket 1 is a frame structure, wherein the two frame rods 3 and the support rods 2 are in contact with the electric sofa to bear the weight. One of the support rods 2 is fixedly connected to the frame rod 3 and the other support rod 2 is rotatably connected to the frame rod 3, wherein the two ends of the support rod 2 rotatably connected to the frame rod 3 are respectively rotatably connected to the support seat 4, and the support seat 4 is fixed in contact with the horizontal plane. An elastic reset member is connected between the support seat 4 and the support rod 2, and an electric push rod 5 is hinged in the middle of the other support rod 2, and the telescopic end of the electric push rod 5 is movably connected to the support rod 2 where the support seat 4 is located through a linkage assembly 6. The elastic reset member plays a damping and buffering role in the flipping process of the driving bracket 1, and the electric push rod 5 provides a flipping driving torque, and its flipping angle is limited by the linkage assembly 6.

[0023] Specifically, unlike conventional hinge structures, the linkage assembly 6 in this embodiment includes a linkage shaft 61 connected to the telescopic end of the electric push rod 5, and the linkage shaft 61 is connected to a hinge seat 62 fixed on the support rod 2; an arc-shaped assembly groove 63 is formed on the hinge seat 62, and a locking sleeve 64 is slidably installed in the assembly groove 63. The linkage shaft 61 is rotatably connected to the locking sleeve 64, and a locking assembly is arranged between the locking sleeve 64 and the assembly groove 63. The locking sleeve 64 slides in the assembly groove 63, and the locking assembly is limited and fixed, and then the linkage shaft 61 can move normally relative to the locking sleeve 64.

[0024] Specifically, the locking assembly includes locking teeth 65 disposed inside the assembly groove 63. A locking block 66 that meshes with the locking teeth 65 is slidably mounted on the locking sleeve 64, and an elastic reset member is connected between the locking block 66 and the locking sleeve 64. When it is necessary to adjust the flipping angle range of the driving bracket 1, the locking block 66 can be manually toggled to separate the locking teeth 65 from the locking block 66 and then re-engage them.

[0025] Furthermore, similar to the existing pipe fittings structure, the support rod 2 in this embodiment adopts a rectangular pipe structure. Connecting seats 21 extending outward are respectively provided at both ends of the support rod 2 to facilitate rotational connection with the support base 4, and other limiting structures can be provided between the connecting seat 21 and the frame rod 3.

[0026] Even further, to meet the installation requirements of the internal frame of the electric sofa, folding portions 31 are respectively provided at both ends of the frame rod 3, and a frame groove 32 and a frame hole 33 are formed on the frame rod 3. The frame rod 3 is assembled to the electric sofa through other connecting members such as threaded parts.

[0027] In addition, the support base 4 includes a first support plate 41 and a second support plate 42 arranged perpendicular to the first support plate 41, and the second support plate 42 is rotationally connected to the support rod 2. A reinforcing rib is usually provided between the first support plate 41 and the second support plate 42 to ensure its vertical support stability.

[0028] Meanwhile, a reinforcing rod 7 is connected between the support bases 4 to further improve the connection stability between the support bases 4 and the horizontal plane. A reinforcing arm 71 is rotatably connected between the reinforcing rod 7 and the support rod 2, and multiple reinforcing arms 71 are kept parallel to improve the torsional resistance of the driving bracket 1 during the flipping process.

[0029] Apparently, in order to further improve its control accuracy, angle sensors are respectively installed between the reinforcing arm 71 and the reinforcing rod 7 and the support rod 2. The use of dual sensors can achieve dynamic adjustment of the electric sofa.

[0030] Obviously, the driving bracket 1 is coated with a corrosion-resistant layer to improve the corrosion resistance of its surface structure, thereby extending the overall service life of the driving link. In addition, the driving bracket 1 is preferably made of aluminum alloy material to ensure its structural strength while achieving overall lightweight.

[0031] Preferably, the electric push rod 5 is driven by a servo motor, and the telescopic direction and adjustment rate of the electric push rod 5 are adjusted according to actual needs.

[0032] In summary, the principle of this embodiment is as follows: One support rod 2 in the driving bracket 1 flips under the drive of the electric push rod 5 and the linkage assembly 6, and at the same time, the support rod 2 rotates relative to the support base 4, thereby driving the activities of the electric sofa components installed on the driving bracket 1 to achieve the switching of the supine mode.

[0033] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains may make various modifications or supplements to the described specific embodiments or use similar ways of substitution, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

[0034] Although terms such as driving bracket 1, support rod 2, adapter seat 21, frame rod 3, folding part 31, frame groove 32, frame hole 33, support seat 4, first support plate 41, second support plate 42, electric push rod 5, linkage assembly 6, linkage shaft 61, hinge seat 62, assembly groove 63, locking sleeve 64, locking teeth 65, locking block 66, reinforcing rod 7, reinforcing arm 71 are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is only to more conveniently describe and explain the essence of the present utility model; interpreting them as any additional limitation is contrary to the spirit of the present utility model.

Claims

1. An efficient electric sofa reclining drive link, comprising a drive bracket (1), characterized in that, The described driving bracket (1) has a pair of parallel support rods (2) and a frame rod (3) connected between the two ends of the support rods (2). One of the support rods (2) is fixedly connected to the frame rod (3), and the other support rod (2) is rotatably connected to the frame rod (3). At both ends of the support rod (2) rotatably connected to the frame rod (3), support seats (4) are respectively rotatably connected. An elastic reset member is connected between the support seat (4) and the support rod (2). In the middle of the other support rod (2), an electric push rod (5) is hinged. The telescopic end of the electric push rod (5) is movably connected to the support rod (2) where the support seat (4) is located through a linkage assembly (6).

2. The high-efficiency electric sofa reclining drive link according to claim 1, characterized in that, The described linkage assembly (6) includes a linkage shaft (61) connected to the telescopic end of the electric push rod (5), and the linkage shaft (61) is connected to a hinge seat (62) fixed on the support rod (2); an arc-shaped assembly groove (63) is formed on the hinge seat (62), and a locking sleeve (64) is slidably installed in the assembly groove (63). The linkage shaft (61) is rotatably connected to the locking sleeve (64), and a locking assembly is provided between the locking sleeve (64) and the assembly groove (63).

3. An efficient electric sofa reclining drive link according to claim 2, characterized in that, The described locking assembly includes locking teeth (65) arranged on the inner side of the assembly groove (63), and a locking block (66) meshing with the locking teeth (65) is slidably installed on the locking sleeve (64). An elastic reset member is connected between the locking block (66) and the locking sleeve (64).

4. An efficient electric sofa reclining drive link according to claim 1, characterized in that, The support rod (2) adopts a rectangular tube structure, and transfer seats (21) extending outward are respectively arranged at both ends of the support rod (2).

5. An efficient electric sofa reclining drive link according to claim 1, characterized in that, Folding parts (31) are respectively arranged at both ends of the frame rod (3), and a frame groove (32) and a frame hole (33) are formed on the frame rod (3).

6. An efficient electric sofa reclining drive link according to claim 1, characterized in that, The support seat (4) includes a first support plate (41) and a second support plate (42) vertically arranged relative to the first support plate (41), and the second support plate (42) is rotatably connected to the support rod (2).

7. An efficient electric sofa reclining drive link according to claim 1, characterized in that A strengthening rod (7) is connected between the support seats (4), and a strengthening arm (71) is rotatably connected between the strengthening rod (7) and the support rod (2).

8. An efficient electric sofa reclining drive link according to claim 7, characterized in that, Angle sensors are respectively installed between the strengthening arm (71) and the strengthening rod (7) and the support rod (2).

9. An efficient electric sofa reclining drive link according to claim 1, characterized in that, The driving bracket (1) is coated with a corrosion-resistant layer.

10. The high-efficiency electric sofa reclining drive link according to claim 1, characterized in that, The electric push rod (5) is driven by a servo motor.

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