Swinging mechanism of swinging sofa and swinging sofa

Abstract

The swinging mechanism comprises a bottom frame, a seat frame and a swinging driving device, a plurality of rotating points are arranged between the seat frame and the bottom frame, the seat frame rotates around the rotating points so as to swing relative to the bottom frame, and the swinging driving device comprises a power shaft, a driving mechanism and a driving mechanism, the transmission shaft and the power shaft are arranged at intervals in the axial direction, and the power shaft is in transmission connection with the transmission shaft; a transmission belt is arranged between the power shaft and the transmission shaft / between the two transmission shafts; a connecting assembly is arranged on the transmission belt, the connecting assembly comprises a flexible connecting piece, and the flexible connecting piece is matched with the transmission belt and provides a deformation degree so as to be suitable for changing the horizontal movement of the transmission belt into the rotation action of the seat frame around the rotation point; the structure that the flexible connecting piece is matched with the transmission belt is arranged, and due to the fact that the flexible connecting piece can provide the adaptive deformation degree, when the transmission belt moves horizontally, the deformation degree can enable the seat frame to rotate around the rotating point more smoothly.

Description

Technical Field

[0001] This utility model relates to the field of home furnishing product technology, and in particular to a rocking mechanism for a rocking sofa and a rocking sofa. Background Technology

[0002] In modern society, with the improvement of living standards and people's pursuit of diversified leisure and entertainment, various devices with rocking functions have gradually integrated into people's daily lives, such as baby rockers, leisure baskets, massage chairs, and amusement facilities in some theme parks or playgrounds. These devices provide users with relaxation and stress relief by simulating natural rocking movements. In some medical or rehabilitation fields, rocking movements are even used to assist in treatment or promote physical recovery. As the core component of these devices, the performance of the rocking mechanism directly affects the user experience and the safety of the equipment. Traditional rocking mechanisms are diverse in design, but generally use gear transmission, linkage mechanisms, or complex crank-slider systems to achieve rocking movements. While these designs can meet the basic requirements of rocking to a certain extent, they are often accompanied by problems such as complex structures, numerous parts, high noise, difficult maintenance, and less smooth and stable rocking movements.

[0003] Existing rocking mechanisms suffer from significant defects in their drive transmission structures when achieving rotational oscillation of the frame around a pivot point. When the motion of the power shaft needs to be transmitted to the frame to achieve oscillation, traditional solutions mostly employ rigid connection structures or simple transmission components, lacking flexible parts capable of providing sufficient deformation during transmission. This results in an ineffective conversion of linear motion to rotational motion as the power shaft drives the frame via a transmission belt. Due to the lack of flexible connectors to provide deformation, the horizontal movement of the transmission belt is difficult to smoothly translate into rotational motion of the frame around the pivot point. This can lead to unstable transmission, low motion accuracy, or even jamming, severely impacting the performance and reliability of the rocking mechanism. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a rocking mechanism for a rocking sofa and a rocking sofa.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A rocking mechanism for a rocking sofa includes a base frame, a seat frame, and a rocking drive device disposed between the two. The seat frame and the base frame have multiple rotation points. The rocking drive device is configured to drive the seat frame to rotate about the rotation points to rock relative to the base frame. The rocking drive device includes:

[0007] A drive shaft, rotatably mounted on the base frame, and

[0008] At least one drive shaft is axially spaced from the power shaft, and the power shaft is drively connected to the at least one drive shaft;

[0009] A drive belt is disposed between the power shaft and the transmission shaft, or a drive belt is disposed between two transmission shafts; a connecting assembly is disposed on the drive belt, and the drive belt is attached to the seat frame by the connecting assembly, so that the drive belt and the connecting assembly pull the seat frame.

[0010] The connecting component includes a flexible connector configured to engage with the drive belt and provide deformation to adapt to convert the horizontal movement of the drive belt into a rotational movement of the seat frame about the rotation point, thereby causing the seat frame to oscillate relative to the base frame.

[0011] Furthermore, the flexible connector is a rubber connector, and the connecting assembly includes: a fixing member fixed to the transmission belt, and a connecting shaft and the rubber connector sequentially fixed to the fixing member, with the other end of the rubber connector fixed to the seat frame.

[0012] Furthermore, the flexible connector includes a first rubber connector and a second rubber connector, and the connecting assembly includes: a fixing member fixed to the transmission belt, and the first rubber connector, the first connecting shaft and the second rubber connector sequentially fixed to the fixing member, with the other end of the second rubber connector fixed to the seat frame.

[0013] Furthermore, the flexible connector is a flexible belt, and the connecting assembly includes: a fixing member fixed to the transmission belt, and a flexible belt fixed to the fixing member, wherein both ends of the flexible belt are fixed to the seat frame in the length direction of the base frame.

[0014] Furthermore, the swing drive device includes: a power shaft and a transmission shaft that is drively connected to the power shaft, and the transmission belt is disposed between the power shaft and the transmission shaft.

[0015] Furthermore, the swing drive device includes: a power shaft and a first transmission shaft and a second transmission shaft that are drively connected to the power shaft, and the transmission belt is disposed between the first transmission shaft and the second transmission shaft.

[0016] Furthermore, a first pulley is disposed on the power shaft, a second pulley is disposed on the first transmission shaft, the diameter of the second pulley is larger than the diameter of the first pulley, and a drive belt is disposed between the first pulley and the second pulley.

[0017] Furthermore, a third pulley is disposed on the power shaft, a fourth pulley is disposed at the axial end of the first transmission shaft, a fifth pulley is disposed in the middle of the first transmission shaft, and a sixth pulley is disposed in the middle of the second transmission shaft, wherein the diameter of the sixth pulley is larger than the diameter of the fifth pulley.

[0018] Furthermore, a first drive belt is disposed on the third pulley and the fourth pulley, and a second drive belt is disposed between the fifth pulley and the sixth pulley.

[0019] A rocking sofa, the rocking sofa including the rocking mechanism described above.

[0020] Due to the adoption of the above technical solutions, this utility model has the following beneficial effects:

[0021] 1. This utility model incorporates a flexible connector in the swing drive device that engages with the transmission belt. Because the flexible connector provides adaptable deformation, the rotation of the seat frame around the pivot point is smoother when the transmission belt moves horizontally. Specifically, the flexible connector, through its own deformation, buffers and converts the linear motion of the transmission belt, making the swing motion of the seat frame more consistent with mechanical principles and achieving efficient conversion between the horizontal movement of the transmission belt and the rotational motion of the seat frame. Furthermore, this design improves motion accuracy. The precise deformation provided by the flexible connector allows for accurate control of the seat frame's rotation angle and speed around the pivot point, ensuring the swing motion of the seat frame better meets design expectations, satisfying the needs of applications requiring high motion accuracy, and enhancing the operational reliability of the swing mechanism.

[0022] 2. This invention achieves a change in transmission ratio by configuring different pulleys and setting the drive belt, such as using pulleys of different diameters (the second pulley has a larger diameter than the first pulley, and the sixth pulley has a larger diameter than the fifth pulley), thereby enabling more flexible adjustment of the rocking speed. This significantly increases the adjustable range of the rocking speed, allowing users to freely adjust the rocking speed of the rocking sofa according to their own preferences and actual needs, obtaining a personalized rocking experience and meeting the usage needs of different users in different scenarios.

[0023] 3. This utility model provides different transmission shaft configurations (power shaft connected to two transmission shafts, or power shaft connected to one transmission shaft), which can be flexibly selected according to actual product needs and design goals. This flexibility allows the rocking mechanism to adapt to different application scenarios and performance requirements, further improving the product's versatility and applicability. Furthermore, the different forms of connecting component designs in this utility model, such as the use of rubber connectors or flexible belts, not only effectively transmit power but also provide cushioning and shock absorption, further ensuring the smoothness and stability of the rocking process, reducing the occurrence of jamming and instability, improving user comfort, and also helping to extend the service life of the rocking sofa. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only involve some embodiments of this utility model, and are not intended to limit this utility model.

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0026] Figure 2 This is an exploded view of the structure of this utility model.

[0027] Figure 3 This is a structural diagram of the swing drive device of this utility model.

[0028] Figure 4 This is an exploded view of the structure of the swing drive device of this utility model.

[0029] Figure 5 This is a structural diagram of the first embodiment of the connecting component of this utility model.

[0030] Figure 6 This is a structural diagram of a second embodiment of the connecting component of this utility model.

[0031] Figure 7 This is a structural diagram of a third embodiment of the connecting component of this utility model.

[0032] Figure 8 This is a structural diagram of the first embodiment of the swing drive device of this utility model.

[0033] Figure 9 This is a structural diagram of a second embodiment of the swing drive device of this utility model.

[0034] Figure label:

[0035] In the diagram, 100. Base frame; 110. Drive base plate; 200. Seat frame; 210. First swing arm; 220. Second swing arm; 300. Swing drive device; 310. Power shaft; 311. First pulley; 312. Second pulley; 313. Third pulley; 314. Fourth pulley; 315. Fifth pulley; 316. Sixth pulley; 317. Drive belt; 318. First drive belt; 319. Second drive belt. 321. Drive belt; 322. First drive shaft; 330. First drive wheel; 340. Second drive wheel; 350. Motor; 400. Drive belt; 500. Connecting assembly; 510. Fixing component; 520. Connecting shaft; 530. Rubber connector; 540. First rubber connector; 550. First connecting shaft; 560. Second rubber connector; 570. Flexible belt; 600. Bearing; 700. Rotation point. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0037] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0038] Unless otherwise defined, the technical or scientific terms used in this patent document shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model patent specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an," "a," or "the" do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" indicate that the element or object preceding "comprising" encompasses the element or object listed following "comprising" or its equivalents, and do not exclude other elements or objects. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are used only to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.

[0041] I. Overall Structure

[0042] Please see Figures 1-4This utility model discloses a rocking mechanism and a rocking sofa, including a base frame 100, a seat frame 200, and a rocking drive device 300. The rocking sofa, as a typical application of this rocking mechanism, mainly consists of a seat body, a rocking mechanism, and a control system. The base frame 100 serves as the basic support component of the entire mechanism, providing an installation foundation and stable support for other components. The seat frame 200 is the key component for realizing the rocking function, capable of rocking back and forth relative to the base frame 100. The rocking drive device 300, as the core component for power transmission and motion conversion, transmits power to the seat frame 200 through a specific transmission structure, driving it to complete the rocking motion. In practical applications, the base frame 100 can be made of corrosion-resistant metal material in a circular or triangular frame structure, utilizing its stability principle to improve the mechanism's wind and earthquake resistance in complex outdoor environments. In this example, the seat frame 200 and the base frame 100 have multiple rotation points 700, and the rocking drive device 300 is configured to drive the seat frame 200 to rotate around the rotation points 700 to rock relative to the base frame 100. The seat 200 and the base frame 100 are also connected by a four-bar linkage. The four connection points of the four-bar linkage are configured as a rotation point 700. During the swinging process, the links of the four-bar linkage will rotate relative to each other, thereby driving the seat 200 to swing around the rotation point 700. The swinging drive device 300 is fixed inside the base frame 100 by a drive base plate 110. The swinging drive device 300 includes a power shaft 310 and at least one transmission shaft axially spaced from the power shaft 310. The power shaft 310 is drively connected to the at least one transmission shaft. The transmission shaft is rotatably mounted on the base frame 100. In this embodiment, a transmission belt 400 is disposed between the power shaft 310 and the transmission shaft or the two transmission shafts. A connecting assembly 500 is disposed on the transmission belt 400, and the transmission belt 400 is fixed to the seat 200 by the connecting assembly 500. The connecting assembly 500 includes a flexible connector configured to engage with the drive belt and provide a degree of deformation to adapt to converting the horizontal movement of the drive belt 400 into a rotational movement of the seat 200 about the rotation point 700, thereby causing the seat 200 to oscillate relative to the base frame.

[0043] In this embodiment, the power shaft 310 is rotatably mounted on the base frame 100, serving as the power input shaft and connected to the motor 350. In specific implementations, the power shaft 310 is configured as the output shaft of the motor 350, ensuring stable and reliable power transmission. To reduce friction and wear on the power shaft 310 during rotation, bearings are installed between the power shaft 310 and the base frame 100. These bearings can withstand radial loads, ensuring smooth rotation of the power shaft 310 and extending its service life. The drive shaft is axially spaced from the power shaft 310 and is also rotatably mounted on the base frame 100. Depending on different design requirements, the number of drive shafts can be one or more. When using a single drive shaft, it is directly connected to the power shaft 310, and the power on the power shaft 310 is directly transmitted to the drive shaft via the transmission belt 400. When using multiple drive shafts, they are connected to each other and to the power shaft 310 via multiple belts, forming a complex transmission system to achieve specific transmission ratios and motion effects. When installing the drive shaft, a bearing is also required between it and the base frame 100. To ensure the installation accuracy and stability of the drive shaft, a dedicated bearing housing 600 is provided on the base frame 100. This bearing housing 600 is fixed to the base frame 100 with bolts, and the bearing is installed inside the bearing housing 600, with the drive shaft passing through the inner ring of the bearing. This installation method can effectively fix the position of the drive shaft, reduce its radial runout during rotation, and improve the stability and reliability of the transmission system. The drive belt 400, as a key transmission component connecting the power shaft 310 and the drive shaft, mainly functions to transmit motion to the base frame 200 through the connecting assembly 500. The drive belt 400 is usually made of rubber, which has good elasticity and wear resistance, and can maintain stable performance during long-term transmission.

[0044] Pulleys (such as the first pulley 311, the second pulley 312, etc.) are fixedly mounted on the power shaft 310 and the transmission shaft, and cooperate with the transmission belt 400 to achieve the transmission function. In this embodiment, their diameters can be determined according to the requirements of the transmission ratio. For example, when it is necessary to increase the speed of the transmission shaft, the diameter of the pulley on the power shaft 310 can be made smaller than the diameter of the pulley on the transmission shaft. By adjusting the diameter ratio of the pulleys, different transmission effects can be achieved to meet the needs of the swing mechanism in different working scenarios.

[0045] II. Examples of Different Transmission Structures

[0046] Example 1:

[0047] In this embodiment, the rocking drive device 300 includes only one drive shaft. The power of the power shaft 310 is directly transmitted to this drive shaft. Both the power shaft 310 and the drive shaft are equipped with drive pulleys, and a drive belt 400 is fitted between the power shaft 310 and the drive pulleys of the drive shaft. When the motor 350 drives the power shaft 310 to rotate, the power shaft 310 drives the drive shaft to rotate via the drive belt 400. The drive belt 400 is fixed to the seat frame 200 by a connecting assembly 500. This transmission structure is simple and low-cost, suitable for scenarios where the requirements for rocking speed and force are not high. However, due to its short transmission path, the power requirement for the motor 350 is relatively high in order to achieve sufficient rocking force. In practical applications, if subsequent motor technology is upgraded to provide greater torque and power, this single drive shaft transmission structure will have higher practicality and cost-effectiveness.

[0048] Example 2:

[0049] Please see Figure 8 In this embodiment, the rocking drive device 300 includes a power shaft 310, a first transmission shaft 321, and a second transmission shaft 322. A first transmission wheel 330 and a second transmission wheel 340 are respectively mounted on the first transmission shaft 321 and the second transmission shaft 322, and a transmission belt 400 is disposed between the first transmission wheel 330 and the second transmission wheel 340. The power shaft 310 drives the first transmission shaft 321 to rotate via a drive belt 317, and the first transmission shaft 321 then drives the second transmission shaft 322 to rotate via the transmission belt 400. This dual-transmission shaft transmission structure can achieve more complex motion transmission and speed changes through multi-stage transmission, and compared with a single transmission shaft structure, it can reduce the power requirements of the motor 350 to a certain extent. At the same time, by rationally designing the diameter and transmission ratio of each pulley, the rocking speed and angle of the seat frame 200 can be precisely controlled to meet the personalized comfort needs of different users for the rocking sofa. Example 3:

[0050] Please see Figure 9In this embodiment, a third pulley 313 is disposed on the power shaft 310, a fourth pulley 314 is disposed at the axial end of the first transmission shaft 321, a fifth pulley 315 is disposed in the middle of the first transmission shaft 321, and a sixth pulley 316 is disposed in the middle of the second transmission shaft 322. The diameter of the fourth pulley 314 is larger than the diameter of the third pulley 313, and the diameter of the sixth pulley 316 is larger than the diameter of the fifth pulley 315. A first drive belt 318 is disposed between the third pulley 313 and the fourth pulley 314, and a second drive belt 319 is disposed between the fifth pulley 315 and the sixth pulley 316. This multi-stage pulley transmission structure further increases the complexity and flexibility of the transmission system. Motor 350 drives power shaft 310 to rotate. The third pulley 313 on power shaft 310 drives the fourth pulley 314 on first transmission shaft 321 to rotate via first drive belt 318. First transmission shaft 321 then drives the sixth pulley 316 on second transmission shaft 322 to rotate via fifth pulley 315 and second drive belt 319. The sixth pulley 316 drives the second transmission wheel 340 to rotate, thereby driving the first transmission wheel 330 and the transmission belt to rotate. By setting pulleys of different diameters and using multi-stage transmission, more precise speed adjustment and torque amplification can be achieved, making the rocking motion of the seat 200 smoother and gentler, while reducing the power requirement of motor 350. However, this structure also has disadvantages such as higher cost and greater difficulty in installation and debugging, requiring precise calculations and assembly during design and manufacturing. III. Specific Implementation Methods of Connecting Components

[0051] The connecting component 500 serves as a bridge between the drive belt 400 and the seat 200, and its main function is to convert the linear motion of the drive belt 400 into the back-and-forth rocking motion of the seat 200. Depending on different design requirements, the connecting component 500 can be implemented in various ways; the following will describe in detail several main embodiments involved in the claims.

[0052] Implementation Method 1:

[0053] Please see Figure 5In this embodiment, the flexible connector is a rubber connector 530. The connecting assembly 500 includes a fixing member 510 fixed to the transmission belt 400, and a connecting shaft 520 and the rubber connector 530 sequentially fixed to the fixing member 510. In this embodiment, the fixing member 510 is fixed to the transmission belt 400 by bolts. The connecting shaft 520 is generally a cylindrical metal shaft, one end of which is fixed to the fixing member 510 by a threaded connection, and the other end is fixedly connected to the rubber connector 530. The rubber connector 530 has good elasticity and flexibility. One end of it is firmly connected to the connecting shaft 520, and the other end is fixed to the seat 200 (first swing arm 210 or second swing arm 220) by bolts. During operation, when the transmission belt 400 moves left and right, the fixing member 510 moves synchronously with the transmission belt 400, and the connecting shaft 520 drives the rubber connector 530 to move. Because the rubber connector 530 is elastic, it deforms during movement, thus converting the linear movement of the fixed member 510 into a pulling force on the seat 200. This causes the seat 200 to swing back and forth around the rotation point of the four-bar linkage connected to the base frame 100. The elastic properties of the rubber connector 530 can also buffer the impact force during transmission to a certain extent, reducing vibration and noise, and improving the smoothness and comfort of the swing mechanism.

[0054] Implementation Method Two:

[0055] Please see Figure 6 In this embodiment, the flexible connector includes a first rubber connector 540 and a second rubber connector 560. The connecting assembly 500 includes a fixing member 510 fixed to the transmission belt 400, and a first rubber connector 540, a first connecting shaft 550, and a second rubber connector 560 sequentially fixed to the fixing member 510. Compared with embodiment one, this embodiment adds a layer of rubber connectors, further enhancing the elasticity and cushioning performance of the connecting assembly 500.

[0056] Both the first rubber connector 540 and the second rubber connector 560 are made of rubber, and their structure and function are the same as those of the rubber connector 530 in Embodiment 1. One end of the first rubber connector 540 is firmly connected to the fixing member 510, and the other end is fixedly connected to the first connecting shaft 550; the other end of the first connecting shaft 550 is then connected to the second rubber connector 560, and the other end of the second rubber connector 560 is fixed to the seat frame 200. During the swaying process, the linear motion of the transmission belt 400 is transmitted to the first rubber connector 540 through the fixing member 510. After being subjected to force, the first rubber connector 540 undergoes elastic deformation, transmitting the force to the first connecting shaft 550, which then transmits the force to the seat frame 200 through the second rubber connector 560. The two layers of rubber connectors can better absorb the impact and vibration during the transmission process, making the swaying motion of the seat frame 200 more stable and gentle.

[0057] Implementation Method 3:

[0058] Please see Figure 7 In this embodiment, the flexible connector is a flexible belt 570. The connecting assembly 500 includes a fixing member 510 fixed to one end of the transmission belt 400 and a flexible belt 570 fixed to the other end of the transmission belt. The two ends of the flexible belt 570 in the length direction of the base frame 100 are respectively fixed to the first swing arm 210 and the second swing arm 220 of the seat frame 200. The fixing member 510 is fixed to the transmission belt 400, and its structure and connection method are the same as those of the fixing member 510 in the previous two embodiments. When the transmission belt 400 moves left and right, the fixing member 510 drives the flexible belt 570 to move, and the two ends of the flexible belt 570 pull the first swing arm 210 and the second swing arm 220 of the seat frame 200 respectively, so that the seat frame 200 rotates around the rotation point to realize the swing motion. This connection method has a simple structure, low cost, and can flexibly adjust the swing amplitude and angle of the seat frame 200 by adjusting the length and installation position of the flexible belt 570.

[0059] The seat frame 200 has a first swing arm 210 and a second swing arm 220 spaced apart in the front-rear direction of the base frame 100. The first swing arm 210 and the second swing arm 220 are key components of the connecting assembly 500 and the main structure of the seat frame 200, and their main function is to transmit the tension of the connecting assembly 500, driving the seat frame 200 to swing. The first swing arm 210 and the second swing arm 220 have sufficient strength and rigidity to withstand the tension transmitted by the connecting assembly 500 and the inertial force generated by the seat frame 200 during the swinging process. The lengths of the first swing arm 210 and the second swing arm 220 should be rationally designed according to the overall dimensions of the seat frame 200 and the swing amplitude requirements. In this embodiment, their lengths are equal and they are distributed at the front and rear ends of the seat frame 200. The first swing arm 210 and the second swing arm 220 can be fixed to the main structure of the seat frame 200 by welding, bolting, or riveting. The connecting assembly 500 is connected to the first swing arm 210 and / or the second swing arm 220 in various ways. In the embodiment of the connecting component 500 described above, one end of the rubber connector 530, the second rubber connector 560, or the flexible band 570 is directly fixed to the first swing arm 210 or the second swing arm 220; alternatively, they can be fixed to both the first swing arm 210 and the second swing arm 220 simultaneously to improve the stability and reliability of the connection. During the connection process, it is necessary to ensure the firmness of the connection parts to avoid loosening or detachment during the swinging process, which would affect the normal operation of the swing mechanism.

[0060] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A rocking mechanism for a rocking sofa, comprising a base frame, a seat frame, and a rocking drive device disposed between the two, wherein the seat frame and the base frame have a plurality of rotation points, and the rocking drive device is configured to drive the seat frame to rotate about the rotation points to rock relative to the base frame, characterized in that, The swing drive device includes: A drive shaft, rotatably mounted on the base frame, and At least one drive shaft is axially spaced from the power shaft, and the power shaft is drively connected to the at least one drive shaft; A drive belt is disposed between the power shaft and the transmission shaft, or a drive belt is disposed between two transmission shafts; a connecting assembly is disposed on the drive belt, and the drive belt is attached to the seat frame by the connecting assembly, so that the drive belt and the connecting assembly pull the seat frame. The connecting component includes a flexible connector configured to engage with the drive belt and provide deformation to adapt to convert the horizontal movement of the drive belt into a rotational movement of the seat frame about the rotation point, thereby causing the seat frame to oscillate relative to the base frame.

2. The swing mechanism according to claim 1, characterized in that, The flexible connector is a rubber connector. The connecting assembly includes: a fixing member fixed to the transmission belt, and a connecting shaft sequentially fixed to the fixing member and the rubber connector, with the other end of the rubber connector fixed to the seat frame.

3. The swing mechanism according to claim 1, characterized in that, The flexible connector includes a first rubber connector and a second rubber connector. The connecting assembly includes a fixing member fixed to the transmission belt, and the first rubber connector, the first connecting shaft and the second rubber connector are sequentially fixed to the fixing member. The other end of the second rubber connector is fixed to the seat frame.

4. The swing mechanism according to claim 1, characterized in that, The flexible connector is a flexible belt, and the connecting assembly includes: a fixing member fixed to the transmission belt, and a flexible belt fixed to the fixing member, wherein both ends of the flexible belt are fixed to the seat frame in the length direction of the base frame.

5. The swing mechanism according to claim 1, characterized in that, The swing drive device includes: a power shaft and a drive shaft that is drively connected to the power shaft, and the drive belt is disposed between the power shaft and the drive shaft.

6. The swing mechanism according to claim 1, characterized in that, The swing drive device includes: a power shaft and a first drive shaft and a second drive shaft that are drively connected to the power shaft, and the drive belt is disposed between the first drive shaft and the second drive shaft.

7. The swing mechanism according to claim 6, characterized in that, A first pulley is disposed on the power shaft, and a second pulley is disposed on the first transmission shaft. The diameter of the second pulley is larger than that of the first pulley, and a drive belt is disposed between the first pulley and the second pulley.

8. The swing mechanism according to claim 6, characterized in that, A third pulley is provided on the power shaft, a fourth pulley is provided at the axial end of the first transmission shaft, a fifth pulley is provided in the middle of the first transmission shaft, and a sixth pulley is provided in the middle of the second transmission shaft. The diameter of the sixth pulley is larger than the diameter of the fifth pulley.

9. The swing mechanism according to claim 8, characterized in that, The third pulley and the fourth pulley are provided with a first drive belt, and the fifth pulley and the sixth pulley are provided with a second drive belt.

10. A rocking sofa, characterized in that, The rocking sofa includes the rocking mechanism described in any one of claims 1-9.

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