Sofa swinging mechanism

Abstract

The utility model relates to the technical field of massage sofas, in particular to a sofa swing mechanism which comprises a motor, a swing fixing seat, a swing sofa supporting iron frame and a sofa iron seat frame assembly, the swing fixing seat is fixedly connected above the swing sofa supporting iron frame, a sofa swing transmission driving device is arranged on one side of the motor, and the sofa iron seat frame assembly is arranged on the other side of the motor. A sofa swinging transmission device is arranged above the sofa iron seat frame assembly, and a sofa swinging auxiliary supporting device is arranged above the swinging sofa supporting iron frame. According to the sofa swinging mechanism, the rollers can freely roll on the arc-shaped left sliding rail and the arc-shaped right sliding rail according to the sliding rail path, and the universal shafts push the rollers of the sofa iron seat frame assembly to do reciprocating motion in the sliding rails of the swinging sofa supporting iron frame; the motor can drive the sofa swinging mechanism to swing back and forth on the swinging sofa supporting iron frame after multiple times of speed reduction, so that the comfort level of the sofa is improved, and the use effect of the sofa swinging mechanism is further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of massage sofas, in particular to a sofa swing mechanism. Background Technique

[0002] For example, the authorized announcement number "CN214631174U" is a multifunctional massage sofa. Although the telescopic connecting rod includes two sets of telescopic units that are symmetrically arranged up and down, and the two sets of telescopic units deform synchronously to drive the backrest massage plate to move back and forth, making the adjustment process of the backrest massage plate smoother and the internal structure more stable. However, in the existing multifunctional massage sofas, since the position of the sofa is relatively fixed during massage, only the position where the user's back is tapped and massaged can feel comfortable during movement. The existing multifunctional massage sofas lack a mechanism that can swing back and forth. This makes the actual use of the multifunctional massage sofa rather rigid and inflexible, and requires the user to keep their body tense for a long time to adapt to the work of the massage sofa. Therefore, it is difficult for the user to get effective and sufficient relaxation on the multifunctional massage sofa, reducing the use effect of the multifunctional massage sofa. Content of the Utility Model

[0003] The purpose of the utility model is to solve the problems of poor use effect of the multifunctional massage sofa and affecting the service life of the multifunctional massage sofa, and to propose a sofa swing mechanism.

[0004] To achieve the above purpose, the utility model provides the following technical solution:

[0005] Design a sofa swing mechanism, including a motor, a swing fixed seat, a swing sofa support iron frame and a sofa iron seat frame assembly. The swing fixed seat is fixedly connected above the swing sofa support iron frame. There is a sofa swing transmission driving device on one side of the motor. There is a sofa swing transmission device above the sofa iron seat frame assembly. There is a sofa swing auxiliary support device above the swing sofa support iron frame. The motor is fixedly installed above the swing sofa support iron frame.

[0006] Preferably, the sofa swing transmission driving device includes an aluminum small pulley and a metal worm. The end of the aluminum small pulley is fixedly installed on the output shaft of the motor. The outside of the aluminum small pulley is rotationally connected with a synchronous belt. The other end inside of the synchronous belt is rotationally connected with an aluminum large pulley. One side of the aluminum large pulley is fixedly connected with a metal worm. The lower part of the metal worm is meshed with a helical gear. Both ends of the helical gear are fixedly connected with a crankshaft.

[0007] Preferably, the sofa rocking transmission device includes a longitudinal universal spherical bearing joint and a fixing nut. The longitudinal universal spherical bearing joint is fixedly connected above the sofa iron seat frame assembly. A nut is movably connected above the longitudinal universal spherical bearing joint. The top end of the longitudinal universal spherical bearing joint is fixedly connected with an adjustable connecting rod. The other end of the fixing nut is movably connected with a transverse universal spherical bearing joint.

[0008] Preferably, a crank is rotatably connected to the fixing nut inside the transverse universal spherical bearing joint. The other end of the crank is fixedly connected to the end of a crankshaft. The other end of the crankshaft is movably installed with a reduction gearbox. The reduction gearbox is fixedly connected above the rocking fixed seat. The other side of the crank is threadedly connected to the fixing nut by a thread.

[0009] Preferably, an arc-shaped left slide rail is fixedly connected to one side of the top end of the rocking sofa support iron frame, and an arc-shaped right slide rail is fixedly connected to the other side of the top end of the rocking sofa support iron frame. A plurality of rollers are rotatably connected inside the arc-shaped left slide rail and the arc-shaped right slide rail. A sofa iron seat frame assembly is fixedly installed inside the plurality of rollers. A fixed shaft is fixedly installed on one side above the sofa iron seat frame assembly. The end of the fixed shaft is rotatably connected to the inside of the longitudinal universal spherical bearing joint.

[0010] For a sofa rocking mechanism proposed by the present utility model, the beneficial effects are as follows: The rollers can freely roll along the slide rail paths in the arc-shaped left slide rail and the arc-shaped right slide rail. When the universal shaft makes a reciprocating motion back and forth, the universal shaft pushes the rollers of the sofa iron seat frame assembly to make a reciprocating motion back and forth in the slide rails of the rocking sofa support iron frame. By using a motor, after multiple speed reductions, it can drive the sofa rocking mechanism to perform a rocking motion back and forth on the rocking sofa support iron frame, improving the comfort of the sofa and thus ensuring the use effect of the sofa rocking mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural diagram of the present utility model;

[0012] Figure 2 is Figure 1 a partial three-dimensional structural diagram of the rocking sofa support iron frame of

[0013] Figure 3 is Figure 1 a three-dimensional exploded schematic diagram of the rocking mechanism of

[0014] Figure 4 is Figure 3 a schematic structural diagram of A in

[0015] Figure 5 is Figure 3 a schematic structural diagram of B in

[0016] Figure 6 is Figure 2 front cross-sectional schematic view of

[0017] In the figure: 1. Motor, 2. Small aluminum pulley, 3. Synchronous belt, 30a, sofa swing drive device, 4. Large aluminum pulley, 40b, sofa swing device, 5. Crank, 6. Horizontal universal fish-eye bearing joint, 7. Fixed nut, 8. Adjustable connecting rod, 9. Vertical universal fish-eye bearing joint, 10. Helical gear, 11. Crankshaft, 12. Metal worm, 13. Reducer box, 14. Swing fixed seat, 15. Arc-shaped right slide rail, 16. Swing sofa support iron frame, 17. Arc-shaped left slide rail, 18. Roller, 19. Sofa iron seat frame assembly, 20. Fixed shaft. Specific implementation mode

[0018] The present utility model will be further described below with reference to the accompanying drawings:

[0019] Embodiment 1:

[0020] Please refer to Figures 1-6 : In this embodiment, a sofa swing mechanism includes a motor 1, a swing fixed seat 14, a swing sofa support iron frame 16 and a sofa iron seat frame assembly 19. The swing fixed seat 14 is fixedly connected above the swing sofa support iron frame 16. A sofa swing drive device 30a is provided on one side of the motor 1. A sofa swing device 40b is provided above the sofa iron seat frame assembly 19. A sofa swing auxiliary support device 21 is provided above the swing sofa support iron frame 16. The motor 1 is fixedly installed above the swing sofa support iron frame 16. When selecting the motor 1, a motor model that can meet the usage requirements can be selected.

[0021] The sofa swing drive device 30a includes an aluminum small pulley 2 and a metal worm 12. The end of the aluminum small pulley 2 is fixedly installed on the output shaft of the motor 1. Both the aluminum small pulley 2 and the aluminum large pulley 4 are toothed pulleys, and the synchronous belt 3 is a toothed belt. In this way, the synchronous belt 3 can engage and drive on the outer sides of the aluminum small pulley 2 and the aluminum large pulley 4. The synchronous belt 3 is rotatably connected to the outer side of the aluminum small pulley 2. When the power is connected to start the motor 1, the motor 1 can drive the aluminum small pulley 2 to rotate through the output shaft. The aluminum small pulley 2 rotates synchronously with the aluminum large pulley 4 through the synchronous belt 3 for the first deceleration. The other end inner side of the synchronous belt 3 is rotatably connected to the aluminum large pulley 4. One side of the aluminum large pulley 4 is fixedly connected to the metal worm 12. Then the aluminum large pulley 4 rotates to drive the metal worm 12 to rotate. The metal worm 12 meshes with the helical gear 10 to change the transmission direction and perform the second deceleration. The metal worm 12 is meshed and connected with the helical gear 10 below. Both ends of the helical gear 10 are fixedly connected to the crankshaft 11. The helical gear 10 is connected to the crank 5 through the crankshaft 11 and is assembled and fixed in position through the reduction gearbox 13 to form a reduction mechanism;

[0022] Since both the aluminum small pulley 2 and the aluminum large pulley 4 are toothed pulleys, and the synchronous belt 3 is a toothed belt, the synchronous belt 3 can engage and drive on the outer sides of the aluminum small pulley 2 and the aluminum large pulley 4. When the power is connected to start the motor 1, the motor 1 can drive the aluminum small pulley 2 to rotate through the output shaft. The aluminum small pulley 2 rotates synchronously with the aluminum large pulley 4 through the synchronous belt 3 for the first deceleration. Then the aluminum large pulley 4 rotates to drive the metal worm 12 to rotate. The metal worm 12 meshes with the helical gear 10 to change the transmission direction and perform the second deceleration. The helical gear 10 is connected to the crank 5 through the crankshaft 11 and is assembled and fixed in position through the reduction gearbox 13 to form a reduction mechanism.

[0023] The sofa swing drive device 40b includes a longitudinal universal ball eye bearing joint 9 and a fixing nut 7. The longitudinal universal ball eye bearing joint 9 is fixedly connected above the sofa iron seat frame assembly 19. A fixing nut 7 is movably connected above the longitudinal universal ball eye bearing joint 9. The top end of the longitudinal universal ball eye bearing joint 9 is fixedly connected with an adjustable connecting rod 8. The end of the fixing nut 7 and the adjustable connecting rod 8 are connected to the longitudinal universal ball eye bearing joint 9, enabling multi-directional free swing. The adjustable connecting rod 8 and the longitudinal universal ball eye bearing joint 9 are fixed on the front cross beam of the sofa iron seat frame assembly 19 through a fixing shaft 20. The other end of the fixing nut 7 is movably connected with a transverse universal ball eye bearing joint 6. The inner side of the transverse universal ball eye bearing joint 6 is rotatably connected with a crank 5. When the motor 1 drives the crank 5 to rotate, the crank 5 will drive the other side transverse universal ball eye bearing joint 6 to swing back and forth through the fixing nut 7. The other end of the crank 5 is fixedly connected to the end of the crankshaft 11. The crank 5 is connected to the transverse universal ball eye bearing joint 6 through the fixing nut 7, enabling the transmission freedom of the transverse universal ball eye bearing joint 6. The other end of the crankshaft 11 is movably installed with a reduction box 13. The reduction box 13 is fixedly connected above the swing fixing seat 14. The reduction box 13 is fixed on the swing fixing seat 14 by screws.

[0024] One side of the top end of the swing sofa support iron frame 16 is fixedly connected with an arc-shaped left slide rail 17, and the other side of the top end of the swing sofa support iron frame 16 is fixedly connected with an arc-shaped right slide rail 15. The arc-shaped left slide rail 17 and the arc-shaped right slide rail 15 are welded on the swing sofa support iron frame 16. The inner sides of the arc-shaped left slide rail 17 and the arc-shaped right slide rail 15 are rotatably connected with a plurality of rollers 18. There are 4 rollers 18 on both sides of the sofa iron seat frame assembly 19, which are fixed on the sofa iron seat frame assembly 19 through iron shafts. The 4 rollers of the sofa iron seat frame assembly 19 are installed in the arc-shaped left slide rail 17 and the arc-shaped right slide rail 15 on the swing sofa support iron frame 16. The rollers 18 can freely roll in the arc-shaped left slide rail 17 and the arc-shaped right slide rail 15 according to the slide rail path. The inner sides of the plurality of rollers 18 are fixedly installed with the sofa iron seat frame assembly 19.

[0025] The crank 5 pushes the rollers of the sofa iron seat frame assembly 19 to move back and forth in the slide rails of the swing sofa support iron frame 16. Since the arc-shaped left slide rail 17 and the arc-shaped right slide rail 15 are arc-shaped, when the rollers 18 roll in the slide rails, the running track makes an arc-shaped movement according to the arc path, realizing not only the back-and-forth reciprocating movement, but also the undulating movement like swinging on a swing, achieving the real free swing function. One side of the top of the sofa iron seat frame assembly 19 is fixedly installed with a fixing shaft 20. The end of the fixing shaft 20 is rotatably connected to the inner side of the longitudinal universal ball eye bearing joint 9. The fixing shaft 20 can connect the end of the sofa iron seat frame assembly 19 with the longitudinal universal ball eye bearing joint 9 and the rear adjustment connecting rod 8.

[0026] The arc-shaped left slide rail 17 and the arc-shaped right slide rail 15 are welded to the rocking sofa support iron frame 16. There are 4 rollers 18 on both sides of the sofa iron seat frame assembly 19, which are fixed to the sofa iron seat frame assembly 19 through iron shafts. The 4 rollers of the sofa iron seat frame assembly 19 are installed in the arc-shaped left slide rail 17 and the arc-shaped right slide rail 15 on the rocking sofa support iron frame 16. The rollers 18 can freely roll in the arc-shaped left slide rail 17 and the arc-shaped right slide rail 15 according to the slide rail path. When the fixed nut 7 moves back and forth, the fixed nut 7 pushes the rollers of the sofa iron seat frame assembly 19 to move back and forth in the slide rails of the rocking sofa support iron frame 16. Since the arc-shaped left slide rail 17 and the arc-shaped right slide rail 15 are arc-shaped, when the rollers 18 roll in the slide rails, the walking track makes an arc-shaped movement according to the arc path, realizing not only the back-and-forth movement, but also the undulating movement like swinging on a swing, achieving the real free rocking function.

[0027] Working principle:

[0028] The sofa rocking mechanism is installed under the multifunctional massage sofa and can drive the user sitting on the massage sofa to rock back and forth through the sofa rocking mechanism, improving the comfort of the sofa:

[0029] The multi-stage deceleration drive working process of the sofa rocking mechanism:

[0030] Both the aluminum small pulley 2 and the aluminum large pulley 4 belong to toothed belt pulleys, and the synchronous belt 3 belongs to a toothed belt. In this way, the synchronous belt 3 can be meshed and driven on the outside of the aluminum small pulley 2 and the aluminum large pulley 4. When the power is connected to start the motor 1, the motor 1 can drive the aluminum small pulley 2 to rotate through the output shaft. The aluminum small pulley 2 rotates synchronously with the aluminum large pulley 4 through the synchronous belt 3 for the first deceleration. Then, the aluminum large pulley 4 rotates to drive the metal worm 12 to rotate. The metal worm 12 meshes with the helical gear 10 to change the transmission direction and perform the second deceleration. The helical gear 10 is connected to the crank 5 through the crankshaft 11 and is assembled and fixed in position through the reduction box 13 to form a reduction mechanism;

[0031] The rocking transmission connection structure movement process of the sofa rocking mechanism:

[0032] The end of the fixed nut 7 and the adjustable connecting rod 8 are connected to the longitudinal universal fish-eye bearing joint 9, which can realize multi-directional free swing. The adjustable connecting rod 8 and the longitudinal universal fish-eye bearing joint 9 are fixed to the front cross beam of the sofa iron seat frame assembly 19 through the fixed shaft 20. When the motor 1 drives the crank 5 to rotate, the crank 5 will drive the other side of the transverse universal fish-eye bearing joint 6 to swing back and forth through the fixed nut 7. The crank 5 is connected to the transverse universal fish-eye bearing joint 6 through the fixed nut 7, which can realize the transmission freedom degree of the transverse universal fish-eye bearing joint 6. The reduction box 13 is fixed to the rocking fixed seat 14 through screws;

[0033] Movement process of the swing mechanism of the sofa swing mechanism:

[0034] The arc-shaped left slide rail 17 and the arc-shaped right slide rail 15 are welded to the swing sofa support iron frame 16. There are 4 rollers 18 on both sides of the sofa iron seat frame assembly 19, which are fixed to the sofa iron seat frame assembly 19 through iron shafts. The 4 rollers of the sofa iron seat frame assembly 19 are installed in the arc-shaped left slide rail 17 and the arc-shaped right slide rail 15 on the swing sofa support iron frame 16. The rollers 18 can freely roll in the arc-shaped left slide rail 17 and the arc-shaped right slide rail 15 according to the slide rail path. When the fixing nut 7 makes a reciprocating motion back and forth, the fixing nut 7 pushes the rollers of the sofa iron seat frame assembly 19 to make a reciprocating motion back and forth in the slide rails of the swing sofa support iron frame 16. Because the arc-shaped left slide rail 17 and the arc-shaped right slide rail 15 are arc-shaped, when the rollers 18 roll in the slide rails, the walking track makes an arc-shaped motion according to the arc path, realizing not only a reciprocating motion back and forth, but also an undulating motion like swinging on a swing, achieving a real free swing function. The motor 1 can drive the sofa swing mechanism to swing back and forth on the swing sofa support iron frame 16 after multiple speed reductions, improving the comfort of the sofa and thus ensuring the use effect of the sofa swing mechanism.

[0035] Although the present utility model has been illustrated and described by reference to the preferred embodiments, those of ordinary skill in the art should understand that various changes in form and detail may be made within the scope of the claims.

Claims

1. A sofa rocking mechanism, comprising a motor (1), a rocking fixing seat (14), a rocking sofa supporting iron frame (16) and a sofa iron seat frame assembly (19), characterized in that: The swing fixing seat (14) is fixedly connected to the top of the swing sofa support iron frame (16); a sofa swing transmission driving device (30a) is provided on one side of the motor (1); a sofa swing transmission device (40b) is provided on the top of the sofa iron seat frame assembly (19); a sofa swing auxiliary support device (21) is provided on the top of the swing sofa support iron frame (16); and the motor (1) is fixedly mounted on the top of the swing sofa support iron frame (16).

2. A sofa rocking mechanism according to claim 1, characterized in that: The sofa rocking transmission drive device (30a) comprises an aluminum small pulley (2) and a metal worm (12), the end of the aluminum small pulley (2) is fixedly mounted on the output shaft of the motor (1), the outer side of the aluminum small pulley (2) is rotatably connected to a synchronous belt (3), the other end of the synchronous belt (3) is rotatably connected to an aluminum large pulley (4), one side of the aluminum large pulley (4) is fixedly connected to a metal worm (12), the lower side of the metal worm (12) is meshingly connected to a bevel gear (10), and both ends of the bevel gear (10) are fixedly connected to a crank shaft (11).

3. The sofa rocking mechanism according to claim 1, characterized in that: The sofa swing transmission device (40b) comprises a longitudinal universal fisheye bearing joint (9) and a fixing nut (7); the longitudinal universal fisheye bearing joint (9) is fixedly connected to the top of the sofa iron base frame assembly (19); the top of the longitudinal universal fisheye bearing joint (9) is movably connected to the fixing nut (7); the top of the longitudinal universal fisheye bearing joint (9) is fixedly connected to an adjustable connecting rod (8); and the other end of the fixing nut (7) is movably connected to a transverse universal fisheye bearing joint (6).

4. A sofa rocking mechanism according to claim 3, characterized in that: The inner side of the transverse universal fisheye bearing joint (6) is rotatably connected to a crank (5) via a fixing nut (7); the other end of the crank (5) is fixedly connected to the end of a crank shaft (11); a reduction gearbox (13) is movably mounted on the other end of the crank shaft (11); the reduction gearbox (13) is fixedly connected to the top of a swing fixing seat (14); and the other side of the crank (5) is threadedly connected to the fixing nut (7) via a thread.

5. The sofa rocking mechanism according to claim 1, characterized in that: A curved left slide rail (17) is fixedly connected to one side of the top of the swing sofa support iron frame (16), and a curved right slide rail (15) is fixedly connected to the other side of the top of the swing sofa support iron frame (16). A plurality of rollers (18) are rotatably connected to the inner sides of the curved left slide rail (17) and the curved right slide rail (15). A sofa iron seat frame assembly (19) is fixedly installed to the inner sides of the plurality of rollers (18). A fixed shaft (20) is fixedly installed to one side above the sofa iron seat frame assembly (19), and an end of the fixed shaft (20) is rotatably connected to the inner side of a longitudinal universal fisheye bearing joint (9).

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