Electric rocking chair frame based on elastic traction

Abstract

The utility model relates to the technical field of furniture, in particular to an electric rocking chair frame based on elastic traction, which comprises a base, a seat frame, a rocking component, a leisure driving mechanism and an elastic traction group, the two sides of the seat frame are each movably connected with the base through a swing assembly so that the seat frame can be suspended relative to the base. The leisure driving mechanism is installed on the base, one end of the elastic traction set is connected with the base or the leisure driving mechanism, and the other end of the elastic traction set is connected with the seat frame. The leisure driving mechanism can drive the elastic traction group to generate elastic stretching so as to pull the seat frame to swing relative to the base. The electric rocking chair frame is simpler in structure and lower in manufacturing cost; besides, the elastic traction group generates traction effect on the seat frame when elastic deformation occurs, so that the seat frame can swing more smoothly, is not blocked and is low in noise, and the rebound of the elastic traction group after the elastic deformation also can pull the seat frame to swing.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture, in particular to an electric rocking chair frame based on elastic traction. Background Art

[0002] In people's daily life, single chairs have become a very common piece of furniture, especially leisure chairs used at home. As people's living standards continue to improve, more and more people choose rocking chairs that can rock back and forth, so that they can feel the comfort brought by the rocking back and forth when lying on the chair.

[0003] Early rocking chairs were typically simple wooden structures, requiring the user to exert a certain amount of force to rock them back and forth. With the advancement of technology, rocking chairs began to incorporate electric rocking mechanisms, using electrical power to achieve back-and-forth rocking. These electric rocking chairs typically use a motor, drive belt, eccentric wheel, and other components to drive the rocking chair back and forth, as shown in Chinese Utility Model Patent Publication No. CN202477025U. Alternatively, a driving member and an active member exert force on a passive member, causing the passive member to move forward and backward, ultimately achieving back-and-forth rocking, as shown in Chinese Utility Model Patent Publication No. CN215423799U. Furthermore, Chinese Invention Patent Application Publication No. CN106073257A discloses a drive motor, a friction pair, and a pressure mechanism. The pressure mechanism acts on the drive motor to ensure close contact between the output shaft of the drive motor and the friction pair, ensuring that the static friction resistance between the output shaft and the friction pair can propel the rocking chair. These electric rocking chairs are relatively complex in structure, resulting in high manufacturing costs, and may also experience jitter and noise during rocking. Utility Model Content

[0004] The purpose of the utility model is to provide an electric rocking chair frame based on elastic traction, aiming to solve the technical problems of complex structure and high manufacturing cost of electric rocking chairs in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides an electric rocking chair frame based on elastic traction, comprising:

[0006] base;

[0007] A seat frame, wherein both sides of the seat frame are movably connected to the base through a swing assembly so that the seat frame is suspended relative to the base;

[0008] A Xiaoyao driving mechanism is mounted on the base;

[0009] An elastic traction group, one end of which is connected to the base or the drivable driving mechanism and the other end of which is connected to the seat frame;

[0010] The swing driving mechanism can drive the elastic traction group to generate elastic stretching to pull the seat frame to swing relative to the base.

[0011] Preferably, the Xiaoyao drive mechanism includes a Xiaoyao drive motor, and the elastic traction group includes a first elastic member, and the two ends of the first elastic member are respectively connected to the seat frame and the output end of the Xiaoyao drive mechanism; the output end of the Xiaoyao drive motor can stretch the first elastic member during rotation to cause the first elastic member to undergo elastic deformation, thereby pulling the seat frame to swing relative to the base.

[0012] Preferably, the first elastic member includes a tension spring and a belt, two ends of the tension spring are respectively connected to the output end of the Xiaoyao drive motor and one end of the belt, and the other end of the belt is connected to the seat frame.

[0013] Preferably, the elastic traction group also includes a second elastic member, the two ends of the first elastic member are respectively connected to the front lower end of the seat frame and the output end of the Xiaoyao drive mechanism, and the two ends of the second elastic member are respectively connected to the rear of the seat frame and the output end of the Xiaoyao drive mechanism.

[0014] Preferably, the Xiaoyao driving mechanism further includes a rotating installation group, which is installed on the output end of the Xiaoyao driving motor, and one end of the first elastic member and one end of the second elastic member are both connected to the rotating installation group.

[0015] Preferably, the rotating mounting group includes a rotating plate, a shaft and a mounting sleeve, the rotating plate is mounted on the output end of the Xiaoyao drive motor, the shaft is arranged on the rotating plate, the mounting sleeve is arranged on the shaft, and one end of the first elastic member and one end of the second elastic member are both connected to the mounting sleeve.

[0016] Preferably, the Xiaoyao drive mechanism includes a Xiaoyao drive motor, a turntable and a pressure rod, the Xiaoyao drive motor is installed on the base, the turntable is installed at the output end of the Xiaoyao drive motor, and the pressure rod is arranged on the turntable and is not coaxial with the output end of the Xiaoyao drive motor; the elastic traction group includes a first elastic rope, the two ends of the first elastic rope are respectively connected to the base and the seat frame, and the pressure rod intersects with the first elastic rope on the horizontal projection plane; the Xiaoyao drive motor rotates to drive the pressure rod to rotate around the output end of the Xiaoyao drive motor, and the pressure rod can apply pressure to the first elastic rope during the rotation process to make the first elastic rope undergo elastic deformation, thereby pulling the seat frame to swing relative to the base.

[0017] Preferably, the elastic traction group also includes a second elastic rope, the two ends of the first elastic rope are respectively connected to the rear end of the base and the front end of the seat frame, the two ends of the second elastic rope are respectively connected to the front end of the base and the rear end of the seat frame, and the pressure rod and the second elastic rope intersect on the horizontal projection plane.

[0018] Preferably, the base includes a bottom frame, a front fixed rod and a rear fixed rod, and the front fixed rod and the rear fixed rod are installed on the bottom frame with a front-to-rear interval; the swing assembly includes a front swing rod, a rear swing rod and a mounting plate, the front swing rod and the rear swing rod are hinged to the front fixed rod and the rear fixed rod respectively, and the mounting plate is hinged to the front swing rod and the rear swing rod at the same time, so that the mounting plate can swing back and forth relative to the bottom frame, and the left and right ends of the seat frame are respectively installed on the mounting plates of the two groups of swing assemblies.

[0019] Preferably, the base also includes a front limit plate and a rear limit plate, the front limit plate is installed on the front end side of the front fixed rod and extends to the front of the front swing rod; the rear limit plate is installed on the rear end side of the rear fixed rod and extends to the rear of the rear swing rod.

[0020] Preferably, the mount comprises:

[0021] a main body frame, which is detachably mounted on the two sets of the rocking assemblies;

[0022] a driving mechanism mounted on the main frame;

[0023] a linked hinge mechanism, which is movably mounted on the main frame and connected to the output end of the drive mechanism;

[0024] The end of the linkage hinge mechanism close to the front of the main frame is used to install the leg support bracket, and the end close to the rear of the main frame is used to install the backrest bracket; the driving mechanism can drive the linkage hinge mechanism to extend or contract, thereby adjusting the leg support bracket to be lifted or retracted and adjusting the angle between the backrest bracket and the main frame.

[0025] The present invention provides an electric rocking chair frame based on elastic traction, which has at least the following beneficial effects: by installing a swing drive mechanism on the base, and driving the elastic traction group through the swing drive mechanism to generate elastic stretching, the seat frame is pulled back and forth relative to the base. Compared with the traditional structure using a transmission belt plus an eccentric wheel or a friction pair plus a pressure mechanism, the electric rocking chair frame structure of this technical solution is simpler and has lower manufacturing costs. In addition, the elastic traction group is used to generate a traction effect on the seat frame when elastic deformation occurs, which can make the seat frame swing more smoothly, without jamming and with less noise. Moreover, the rebound of the elastic traction group after elastic deformation can also pull the seat frame to swing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0027] Figure 1 This is a structural diagram of the electric rocking chair frame according to the first embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the assembly structure of the base, main frame, swing assembly, dangling drive mechanism and elastic traction group in the first embodiment of the present invention;

[0029] Figure 3 This is a structural diagram of the electric rocking chair frame after the seat frame is removed from the first embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the assembly structure of the Xiaoyao driving mechanism and the elastic traction group in Example 1 of the utility model;

[0031] Figure 5 This is a structural diagram of the electric rocking chair frame according to the second embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the assembly structure of the base, main frame, swing assembly, dangling drive mechanism and elastic traction group in the second embodiment of the present utility model;

[0033] Figure 7 This is a structural diagram of the Xiaoyao driving mechanism and the mounting frame of the second embodiment of the present utility model;

[0034] Figure 8 This is a structural diagram of the base of the utility model;

[0035] Figure 9 This is a schematic diagram of the structure of the seat frame of the utility model;

[0036] Figure 10 This is a schematic structural diagram of the main frame of the utility model;

[0037] Figure 11 This is a schematic diagram of the exploded structure of the main frame of the utility model;

[0038] Figure 12 This is a schematic diagram of the assembly structure of the linkage drive mechanism and the linkage hinge mechanism of the utility model;

[0039] Figure 13 This is a structural diagram of the left hinge assembly of the present invention.

[0040] In the accompanying drawings: 1-base, 111-left bottom rod, 112-right bottom rod, 113-front connecting rod, 114-rear connecting rod, 115-mounting frame, 116-middle connecting rod, 12-front fixed rod, 13-rear fixed rod, 14-front limit plate, 15-rear limit plate, 2-seat frame, 21-main frame, 211-left frame, 212-right frame, 213-first cross bar, 214-second cross bar, 215-third cross bar, 22-linkage drive mechanism, 221-linkage drive motor, 222-screw, 223-movable housing, 23-linkage hinge mechanism, 231-connecting cross bar, 232-left hinge assembly, 2321-third A connecting rod, 2322-second connecting rod, 2323-third connecting rod, 2324-fourth connecting rod, 2325-long rod, 2326-left connecting plate, 2327-fixed plate, 233-right hinge assembly, 3-swing assembly, 31-front swing rod, 32-rear swing rod, 33-mounting plate, 4-Xiaoyao drive mechanism, 41-Xiaoyao drive motor, 42-rotating mounting group, 421-rotating plate, 422-axis rod, 423-mounting sleeve, 43-turntable, 44-pressure rod, 5-elastic traction group, 51-first elastic member, 511-tension spring, 512-belt, 52-second elastic member, 53-first elastic rope, 54-second elastic rope.

[0041] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0044] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0045] See also Figure 1 and Figure 5 , an electric rocking chair frame based on elastic traction, comprising a base 1, a seat frame 2, a rocking assembly 3, a swing drive mechanism 4 and an elastic traction group 5. The base 1 is used to be placed directly on the ground for load-bearing, and serves as the carrier part of the entire electric rocking chair. There are two groups of rocking assemblies 3, and the two groups of rocking assemblies 3 have the same structure and are symmetrically installed on the base 1. The left and right sides of the seat frame 2 are respectively installed on the two groups of rocking assemblies 3, and the seat frame 2 is suspended relative to the base 1, so that the seat frame 2 can swing back and forth relative to the base 1. The swing drive mechanism 4 is installed on the base 1, which is used to output power to drive the seat frame 2 to swing. One end of the elastic traction group 5 is connected to the base 1, and the other end is connected to the seat frame 2; or one end of the elastic traction group 5 is connected to the swing drive mechanism 4, and the other end is connected to the seat frame 2. When the jogging drive mechanism 4 is in operation, it can drive the elastic traction group 5 to produce elastic stretching. Since one end of the elastic traction group 5 is connected to the seat frame 2, the elastic traction group 5 can pull the seat frame 2 to swing relative to the base 1 when the elastic stretching is produced. When the jogging drive mechanism 4 does not apply a force to the elastic traction group 5, the elastic traction group 5 can use its own rebound force to pull the seat frame 2 to swing relative to the base 1 in the rebound direction, ultimately achieving electrically controlled rocking of the rocking chair. Of course, it is also possible to configure the jogging drive mechanism 4 to apply different forces to the elastic traction group 5, thereby causing the elastic traction group 5 to pull the seat frame 2 to swing relative to the base 1 in different directions when elastic deformation occurs, ultimately achieving rocking of the rocking chair.

[0046] This technical solution installs a swing drive mechanism 4 on the base 1 and uses this mechanism to drive an elastic traction group 5 to produce elastic stretching, thereby causing the seat frame 2 to swing back and forth relative to the base 1. Compared to traditional structures that use a transmission belt and an eccentric wheel or a friction pair and a pressure mechanism, the electric rocking chair frame structure of this technical solution is simpler and has lower manufacturing costs. In addition, the elastic traction group 5 uses a traction effect on the seat frame 2 when elastically deformed, making the seat frame 2 swing more smoothly, without jamming, and with less noise. Moreover, the rebound of the elastic traction group 5 after elastic deformation can also cause the seat frame 2 to swing.

[0047] Example 1

[0048] See also Figures 1 to 4 The Xiaoyao drive mechanism 4 includes a Xiaoyao drive motor 41, and the elastic traction group 5 includes a first elastic member 51. The Xiaoyao drive motor 41 is installed on the base 1, and one end of the first elastic member 51 is connected to the seat frame 2, and the other end is connected to the output end of the Xiaoyao drive mechanism 4. The output end of the Xiaoyao drive motor 41 rotates, which can drive one end of the first elastic member 51 to rotate, so that the first elastic member 51 is subjected to a tensile force, and then the first elastic member 51 is elastically deformed; when the first elastic member 51 is elastically deformed, a pulling force is exerted on the seat frame 2, pulling the seat frame 2 to swing relative to the base 1. After the output end of the Xiaoyao drive motor 41 rotates a certain angle or number of circles, the seat frame 2 swings to a certain extent relative to the base 1; then the output end of the Xiaoyao drive motor 41 is controlled to rotate in the opposite direction, so that the seat frame 2 swings in the opposite direction relative to the base 1; this is repeated to achieve the reciprocating swing of the seat frame 2. Of course, after the seat frame 2 has swung a certain amount relative to the base 1, the swing drive motor 41 can be controlled to stop working. At this point, due to the action of the swing assembly 3 and the seat frame 2 (resetting to the initial state), the seat frame 2 can swing in the opposite direction toward the initial state. This process can be repeated to achieve reciprocating swing of the seat frame 2. The combination of the swing drive motor 41 and the first elastic member 51 can achieve electrically controlled swinging of the rocking chair. The structure is simple, and the elastic deformation of the first elastic member 51 is utilized to make the swinging process smoother.

[0049] Specifically, see Figure 4The first elastic member 51 includes a tension spring 511 and a belt 512. One end of the tension spring 511 is connected to the output end of the Xiaoyao drive motor 41. The other end is connected to one end of the belt 512, and the other end of the belt 512 is connected to the seat frame 2. That is, the first elastic member 51 is composed of a tension spring 511 and a belt 512 connected end to end. During the process of pulling the seat frame 2 to swing, the elastic deformation mainly occurs in the tension spring 511, and the belt 512 hardly undergoes elastic deformation. With such a setting, the large elastic deformation capacity and rebound reset capacity of the tension spring 511 itself can be effectively utilized. In addition, the belt 512 can be used to better transmit the pulling force to the seat frame 2 to ensure that the seat frame 2 can be pulled to swing. Therefore, the elastic traction group 5 can be composed of conventional parts and components, with a simple structure and low manufacturing cost.

[0050] Of course, in other embodiments, one end of the tension spring 511 may be connected to the seat frame 2 and the other end may be connected to the belt 512 , and the other end of the belt 512 may be connected to the output end of the Xiaoyao drive motor 41 .

[0051] As mentioned above, the elastic traction group 5 can also achieve the swing of the traction frame 2 when it is composed only of the first elastic member 51. In other embodiments, please refer to Figure 4, the elastic traction group 5 can also include a second elastic member 52, that is, the elastic traction group 5 is composed of a first elastic member 51 and a second elastic member 52. One end of the first elastic member 51 is connected to the front lower end of the seat frame 2, and the other end is connected to the output end of the leisurely driving motor 41. One end of the second elastic member 52 is connected to the rear end of the seat frame 2, and the other end is connected to the output end of the leisurely driving motor 41. The leisurely driving motor 41 is roughly located in the middle position of the base 1. The first elastic member 51 connects the front end of the seat frame 2 and the output end of the leisurely driving motor 41, and the second elastic member 52 connects the rear end of the seat frame 2 and the output end of the leisurely driving motor 41. In the front-to-back direction, the first elastic member 51 and the second elastic member 52 are not in the same horizontal plane. Therefore, when viewed from the side, the first elastic member 51 and the second elastic member 52 extend from front to back and from bottom to top. When the xiaoyao drive motor 41 is in operation, the output end of the xiaoyao drive motor 41 rotates, driving one end of the first elastic member 51 and the second elastic member 52 to rotate with it. This causes the first and second elastic members 51 and 52 to be stretched, which in turn causes them to deform elastically. The elastic deformation of the first and second elastic members 51 and 52 exerts a pulling force on the seat frame 2. Because these two forces are not in the same horizontal plane, they can pull the seat frame 2 to swing relative to the base 1. The output end of the xiaoyao drive motor 41 is then controlled to rotate in the opposite direction, causing the seat frame 2 to swing in the opposite direction relative to the base 1. Repeating this process achieves reciprocating swinging of the seat frame 2. It should be noted that even if the xiaoyao drive motor 41 pulls the first and second elastic members 51 and 52 to pull the seat frame 2 only slightly, when the force is transmitted to the upper end of the seat frame 2, the swinging amplitude of the seat frame 2 and the user becomes larger. By providing the first and second elastic members 51 and 52, the swinging amplitude of the seat frame 2 is more uniform and smoother, and the overall structure is relatively simple.

[0052] The first elastic member 51 and the second elastic member 52 have the same structure, that is, the second elastic member 52 is also composed of a tension spring 511 and a belt 512 .

[0053] See also Figure 4 The Xiaoyao drive mechanism 4 further includes a rotating mounting assembly 42, which is mounted on the output end of the Xiaoyao drive motor 41 and rotates synchronously with the output end of the Xiaoyao drive motor 41. One end of the first elastic member 51 and one end of the second elastic member 52 are both connected to the rotating mounting assembly 42. By providing the rotating mounting assembly 42, the first elastic member 51 and the second elastic member 52 can be easily connected, thereby ensuring the stability of the structure.

[0054] Specifically, see Figure 4The rotating mounting group 42 includes a rotating plate 421, a shaft 422 and a mounting sleeve 423. The rotating plate 421 is a circular plate-shaped structure, which is installed on the output end of the Xiaoyao drive motor 41. The shaft 422 is arranged on the rotating plate 421, protruding outward relative to the rotating plate 421 and perpendicular to the rotating plate 421; more preferably, the rotating plate 421 and the shaft 422 are an integrally formed structure. The mounting sleeve 423 is mounted on the shaft 422, and one end of the first elastic member 51 and one end of the second elastic member 52 are both connected to the mounting sleeve 423. The mounting sleeve 423 mainly consists of three parts. The middle cylinder is used to be mounted on the shaft 422; positions for the tension spring 511 to hook are provided on both sides of the cylinder. The structure of the rotating mounting group 42 is arranged in this way, which can conveniently connect the first elastic member 51 and the second elastic member 52 to the output end of the Xiaoyao drive motor 41.

[0055] Example 2

[0056] See also Figures 5 to 7 The difference between this embodiment and the first embodiment lies in the structure of the swing drive mechanism 4. In this embodiment, the swing drive mechanism 4 includes a swing drive motor 41, a turntable 43, and a pressure rod 44. The swing drive motor 41 is mounted on the base 1, and the turntable 43 is mounted on the output end of the swing drive motor 41. The turntable 43 is a circular disk with a hole at its center. It is mounted on the output end of the swing drive motor 41. When the output end of the swing drive motor 41 rotates, it drives the turntable 43 to rotate about its center. The pressure rod 44 is arranged on the turntable 43 and is not coaxial with the output end of the swing drive motor 41. The pressure rod 44 and the turntable 43 are integrally formed. The pressure rod 44 protrudes outward from the turntable 43 and is perpendicular to the turntable 43. The pressure rod 44 is located near the edge of the turntable 43 and is not coaxial with the output end of the swing drive motor 41. When the turntable 43 rotates, it drives the pressure rod 44 to rotate about the output end of the swing drive motor 41.

[0057] See also Figure 6The elastic traction group 5 includes a first elastic cord 53, one end of which is connected to the base 1 and the other end to the seat frame 2, and the first elastic cord 53 is in a stretched state. The pressure rod 44 and the first elastic cord 53 intersect in a horizontal projection plane. More preferably, the pressure rod 44 and the first elastic cord 53 are perpendicular to each other in the horizontal projection plane. The turntable 43 is located on one side of the first elastic cord 53, but the pressure rod 44 extends above or below the first elastic cord 53. When the pressure rod 44 rotates around the output end of the swing drive motor 41, it will come into contact with the first elastic cord 53. The output end of the Xiaoyao drive motor 41 rotates, which can drive the turntable 43 to rotate synchronously, and the pressure rod 44 on the turntable 43 also rotates around the output end of the Xiaoyao drive motor 41; when the pressure rod 44 rotates to a certain angle, it will contact the first elastic rope 53, and the pressure rod 44 continues to rotate, which will apply pressure to the first elastic rope 53; the first elastic rope 53 will undergo elastic deformation after receiving the pressure of the pressure rod 44. Since one end of the first elastic rope 53 is connected to the base 1, and the base 1 is relatively fixed, the first elastic rope 53 has a pulling force on the seat frame 2 when it is elastically deformed, and can pull the seat frame 2 to swing. When the pressure rod 44 continues to rotate to a certain position, the pressure rod 44 will separate from the first elastic rope 53 and will not contact it. At this time, the pressure rod 44 will not exert any pressure on the first elastic rope 53. The first elastic rope 53 will tend to return to its original position (rebound to a straight state) due to its own elastic force and the fact that its two ends are fixed to the seat frame 2 and the base 1 respectively. At this time, the seat frame 2 is not subjected to the tension generated by the first elastic rope 53 when it is elastically deformed, so the seat frame 2 also tends to return to its initial position. This process is repeated to achieve reciprocating swing of the seat frame 2.

[0058] The combination of the rocking drive motor 41 and the first elastic rope 53 can realize the electric controlled rocking of the rocking chair. The structure is simple, and the elastic deformation of the first elastic rope 53 is utilized to make the rocking process smoother and quieter.

[0059] As mentioned above, the elastic traction group 5 can also achieve the swing of the traction seat frame 2 when it is composed only of the first elastic rope 53. In other embodiments, please refer to Figure 6The elastic traction group 5 may also include a second elastic cord, that is, the elastic traction group 5 consists of a first elastic cord 53 and a second elastic cord 54. The second elastic cord 54 and the first elastic cord 53 are made of the same material and structure. The two ends of the first elastic cord 53 are respectively connected to the rear end of the base 1 and the front end of the seat frame 2. Specifically, one end of the first elastic cord 53 is connected to the rear lower end of the base 1, and the other end is connected to the front upper end of the seat frame 2. The two ends of the second elastic cord 54 are respectively connected to the front end of the base 1 and the rear end of the seat frame 2 of the connecting crossbar 231. Specifically, one end of the second elastic cord 54 is connected to the front lower end of the base 1, and the other end is connected to the rear upper end of the seat frame 2. The first elastic cord 53 and the second elastic cord 54 form an X-shaped cross when viewed from the side. The pressure rod 44 intersects the first and second elastic cords 53, 54 horizontally. Initially, the pressure rod 44 is located behind the intersection of the first and second elastic cords 53, 54, above the first and below the second elastic cords 54. As the pressure rod 44 rotates from top to bottom, it first contacts the first elastic cord 53, applying pressure to it. Then, after further rotating a certain angle, the pressure rod 44 contacts the second elastic cord 54, applying pressure to it. By sequentially applying pressure to the first and second elastic cords 53, the pressure rod 44 achieves swaying of the seat frame 2. In this embodiment, the provision of the first and second elastic cords 53, 54 allows the seat frame 2 to swing forward and backward with a more uniform amplitude and smoother swaying. Furthermore, the overall structure is relatively simple.

[0060] See also Figure 8 The base 1 comprises a bottom frame, a front fixing rod 12, and a rear fixing rod 13. The bottom frame serves as the foundation for the entire rocking chair and rests on the ground. The front fixing rod 12 and the rear fixing rod 13 are identical in structure, parallel to each other, and spaced apart from each other on the bottom frame. A front fixing rod 12 and a rear fixing rod 13 are located on the left side of the bottom frame for mounting the left rocking assembly 3. Similarly, a front fixing rod 12 and a rear fixing rod 13 are located on the right side of the bottom frame for mounting the right rocking assembly 3.

[0061] See also Figure 3 The swing assembly 3 includes a front swing arm 31, a rear swing arm 32, and a mounting plate 33. The front swing arm 31 and the rear swing arm 32 have the same structure. The upper end of the front swing arm 31 is hinged to the upper half of the front fixed rod 12 via a rotating shaft, and the upper end of the rear swing arm 32 is hinged to the upper half of the rear fixed rod 13 via a rotating shaft. The front end of the mounting plate 33 is hinged to the lower end of the front swing arm 31 via a rotating shaft, and the rear end of the mounting plate 33 is connected to the lower end of the rear swing arm 32 via a rotating shaft. The mounting plate 33 is used to mount the seat frame 2. The mounting plate 33 can swing back and forth relative to the base 1 when the front swing arm 31 and the rear swing arm 32 swing back and forth synchronously, thereby achieving the back and forth swing of the seat frame 2.

[0062] By providing the front fixed rod 12, the rear fixed rod 13, the front swing rod 31, the rear swing rod 32 and the mounting plate 33, the structure of each component is simplified, thereby making the structure of the swing assembly 3 simpler, thereby facilitating assembly and saving manufacturing costs; and the mounting plate 33 can also facilitate the installation of the base 1.

[0063] See also Figure 8 The base 1 also includes a front limit plate 14 and a rear limit plate 15, which are respectively used to limit the front swing rod 31 from continuing to swing upward and limit the rear swing rod 32 from continuing to swing backward. The front limit plate 14 and the rear limit plate 15 have the same structure and are both sheet-like structures. The front limit plate 14 is installed on the front side of the front fixed rod 12 and extends to the front of the front swing rod 31; when the front swing rod 31 swings forward to a certain extent, the front limit plate 14 will press against the front swing rod 31 to limit the front swing rod 31 from continuing to swing forward. The rear limit plate 15 is installed on the rear side of the rear fixed rod 13 and extends to the rear of the rear swing rod 32; when the rear swing rod 32 swings backward to a certain extent, the rear limit plate 15 will press against the rear swing rod 32 to limit the rear swing rod 32 from continuing to swing backward. The front limiting plate 14 and the rear limiting plate 15 are provided to limit the amplitude of the front and rear swing of the seat frame 2, thereby ensuring the safety of the swing. In addition, the front limiting plate 14 and the rear limiting plate 15 are both independent sheet structures relative to the front fixed rod 12, the front swing rod 31, the rear fixed rod 13, and the rear swing rod 32. Therefore, the structure of all components of the entire swing assembly 3 is relatively simple, and the manufacturing cost is low.

[0064] See also Figure 3 The upper and lower ends of the front swing link 31 extend rearward to form bent parts, and the upper and lower ends of the front swing link 31 are respectively hinged to the front fixed rod 12 and the mounting plate 33; when the front swing link 31 swings forward, the front limit plate 14 can abut against the bend of the front swing link 31 to limit the front swing link 31 from swinging forward. Similarly, the upper and lower ends of the rear swing link 32 extend forward to form bent parts, and the upper and lower ends of the rear swing link 32 are respectively hinged to the rear fixed rod 13 and the mounting plate 33; when the front swing link 31 and the rear swing link 32 swing forward and backward, the rear limit plate 15 can abut against the bend of the rear swing link 32 to limit the rear swing link 32 from swinging forward and backward. The front swing rod 31 and the rear swing rod 32 are both set as bent parts, which can increase the swing amplitude of the rocking chair while limiting the swing amplitude; and the front limiting plate 14 and the rear limiting plate 15 are against the bending part of the bent plate, so that the force exerted on the front swing rod 31 and the rear swing rod 32 is easier to disperse, thereby ensuring the stability of the structure.

[0065] See also Figure 3The front swing arm 31, the rear swing arm 32, and the mounting plate 33 are all located on the outside of the bottom frame. The mounting plates 33 of both sets of swing assemblies 3 are used to mount the seat frame 2. The front swing arm 31, the rear swing arm 32, and the mounting plate 33 of one set of swing assemblies 3 are located on the left side of the bottom frame, while the front swing arm 31, the rear swing arm 32, and the mounting plate 33 of the other set of swing assemblies 3 are located on the right side of the bottom frame. Therefore, after the seat frame 2 is mounted on the mounting plate 33, the entire base frame is located inside the seat frame 2. Therefore, when the volume of the seat frame 2 is the same, the base frame of this embodiment is smaller in volume, occupies less space, and has lower manufacturing costs. In addition, the swing assembly 3 is hidden inside the seat frame 2, which can improve safety in use, prevent the external environment from interfering with the swing assembly 3, and ensure the normal use of the front and rear swing functions.

[0066] See also Figure 8 The bottom frame includes a left bottom bar 111, a right bottom bar 112, a front connecting bar 113 and a rear connecting bar 114. The left bottom bar 111 and the right bottom bar 112 have the same structure, and their length direction is the front-to-back extension direction. The two are parallel to each other and spaced apart from each other on the left and right sides. The front connecting bar 113 and the rear connecting bar 114 have the same structure, and their length direction is the left-to-right extension direction. The two are parallel to each other and spaced apart from each other on the front and back sides. The two ends of the front connecting bar 113 are respectively connected and fixed to the left bottom bar 111 and the right bottom bar 112, and the front connecting bar 113 is perpendicular to the left bottom bar 111 and the right bottom bar 112. The two ends of the rear connecting bar 114 are respectively connected and fixed to the left bottom bar 111 and the right bottom bar 112, and the rear connecting bar 114 is perpendicular to the left bottom bar 111 and the right bottom bar 112. In other embodiments, please refer to Figure 3 The ends of the front connecting rod 113 can be connected to the left and right front fixed rods 12, respectively. The ends of the rear connecting rod 114 can be connected to the left and right rear fixed rods 13, respectively. The lower ends of the front fixed rod 12 and the right fixed rod in the left swing assembly 3 are both connected and fixed to the left bottom rod 111. The lower ends of the front fixed rod 12 and the right fixed rod in the right swing assembly 3 are both connected and fixed to the right bottom rod 112, for example, by direct welding or detachable connection. The bottom frame structure is also relatively simple and highly stable.

[0067] See also Figure 8 The base 1 also includes a mounting bracket 115, which is mounted on the bottom frame and is used to mount the swing-out drive mechanism 4. Specifically, the bottom frame also includes a middle connecting rod 116, whose ends are respectively connected and fixed to the left bottom rod 111 and the right bottom rod 112. The middle connecting rod 116 is perpendicular to the left and right bottom rods 111 and 112, and is located between the front connecting rod 113 and the rear connecting rod 114. The mounting bracket 115 is specifically mounted on the middle connecting rod 116. This arrangement not only improves the structural strength of the bottom frame but also facilitates the installation of the swing-out drive mechanism 4.

[0068] The seat frame 2 includes a main frame 21, a linkage drive mechanism 22 and a linkage hinge mechanism 23. The main frame 21 is the main part of the seat frame 2, and its shape is a frame structure. In the finished electric rocking chair, the main frame 21 also serves as a seat frame for the user to sit on. The main frame 21 is made of metal to ensure the stability of the seat frame 2 structure. The main frame 21 is detachably mounted on the mounting plate 33 of the rocking assembly 3. The linkage drive mechanism 22 is mounted on the main frame 21, and the linkage drive mechanism 22 is used to drive the linkage hinge mechanism 23 to extend or retract. The linkage hinge mechanism 23 is movably mounted on the main frame 21 and is connected to the output end of the linkage drive mechanism 22. The end of the linkage hinge mechanism 23 near the front of the main frame 21 is used to install a leg support bracket (not shown in the figure), and the end near the rear of the main frame 21 is used to install a backrest bracket (not shown in the figure); the leg support bracket serves as the main support of the leg rest, supporting the user's legs when in use, and the backrest bracket serves as the main support of the backrest, providing support for the user's back and the user's upper body when in use. The linkage drive mechanism 22 can drive the linkage hinge mechanism 23 to extend or retract. When the linkage drive mechanism 22 drives the linkage hinge mechanism 23 to extend, the linkage hinge mechanism 23 can drive the leg support bracket to rise and simultaneously increase the angle between the backrest bracket and the main frame 21, so that the leg support bracket can support the user's legs, while the backrest bracket can support the user lying down. By setting the linkage drive mechanism 22 or the setting of the linkage hinge mechanism 23, the effect of a "zero gravity" sofa can be achieved.

[0069] Existing functional sofas and chairs have complex structures, cumbersome production processes, large packaging volumes, small container loads, and high production and transportation costs. This technical solution, by providing a frame-type main frame 21, directly uses the main frame 21 as the seat frame, eliminating the traditional wooden frame structure. This simplifies the overall structure, simplifies the production process, reduces manufacturing costs, improves product stability, and reduces the weight of the entire product.

[0070] See also Figure 10The main frame 21 includes a left side frame 211, a right side frame 212, a first crossbar 213, a second crossbar 214, and a third crossbar 215. The left and right sides of the frame 211 and 212 have identical structures and are symmetrically arranged. Each is a quadrilateral frame structure consisting of four members. The left and right sides of the frame 211 and 212 are opposite each other and spaced apart. Specifically, the lower end of the left side frame 211 is detachably connected to the mounting plate 33 of the left swing assembly 3, while the lower end of the right side frame 212 is detachably connected to the mounting plate 33 of the right swing assembly 3. One end of the first crossbar 213 is connected to the upper front corner of the left side frame 211, and the other end of the first crossbar 213 is connected to the upper front corner of the right side frame 212. One end of the second crossbar 214 is connected to the upper rear corner of the left side frame 211, and the other end of the second crossbar 214 is connected to the upper rear corner of the right side frame 212. The first crossbar 213 and the second crossbar 214 are spaced apart and parallel to each other. The leg support bracket is located near the front of the left and right frames 211 and 212, while the backrest bracket is located near the rear of the left and right frames 211 and 212. The third crossbar 215 is connected to the left and right frames 211 and 212 at both ends and is located below the second crossbar 214. The linkage drive mechanism 22 is mounted on the third crossbar 215, and the linkage hinge mechanism 23 is located between the left and right frames 211 and 212.

[0071] The structure of the main frame 21 is thus configured to simplify the overall structure of the chair frame and improve structural stability. The space inside the main frame 21 is highly utilized, which reduces the packaging volume of the product, increases the container load, and thus reduces transportation costs.

[0072] See also Figures 10 and 11The main frame 21 is a detachable structure. Specifically, the left side frame 211 and the right side frame 212 are an integrated frame structure. One end of the first cross bar 213 is detachably connected to the upper front corner of the left side frame 211, and the other end of the first cross bar 213 is detachably connected to the upper front corner of the right side frame 212. One end of the second cross bar 214 is detachably connected to the upper rear corner of the left side frame 211, and the other end of the second cross bar 214 is detachably connected to the upper rear corner of the right side frame 212. The two ends of the third cross bar 215 are detachably connected to the left side frame 211 and the right side frame 212, respectively. In other words, the rods connecting the left side frame 211 and the right side frame 212 are both detachably connected to the left side frame 211 and the right side frame 212. Specifically, connecting pieces can be welded to both ends of the first crossbar 213, the second crossbar 214, and the third crossbar 215, holes can be opened on the connecting pieces, and holes can be opened at corresponding positions of the left frame 211 and the right frame 212. Then, connecting pieces (such as screws 222 and bolts) can be used to connect the first crossbar 213, the second crossbar 214, and the third crossbar 215 to the left frame 211 and the right frame 212. By setting the main frame 21 in a detachable manner, unified production and manufacturing can be facilitated. Moreover, before assembly, the main frame 21 is smaller in size, more convenient to transport, with a larger container capacity and lower transportation costs.

[0073] Of course, in other embodiments, the structures of the connections between the first crossbar 213, the second crossbar 214, and the third crossbar 215 and the left side frame 211 and the right side frame 212 can be other methods. For example, by using a clamping method, the ends of the first crossbar 213, the second crossbar 214, and the third crossbar 215 are directly clamped on the left side frame 211 and the right side frame 212; or by using a threaded connection method, the ends of the first crossbar 213, the second crossbar 214, and the third crossbar 215 are provided with threads and can be directly screwed into the threaded holes on the left side frame 211 and the right side frame 212. This technical solution does not limit the method of detachable connection of the main frame 21, as long as the first crossbar 213, the second crossbar 214, and the third crossbar 215 can be detachably connected to the left side frame 211 and the right side frame 212.

[0074] See also Figure 12Furthermore, the linkage hinge mechanism 23 includes a connecting cross bar 231, a left hinge assembly 232 and a right hinge assembly 233. The left hinge assembly 232 and the right hinge assembly 233 have the same structure and are symmetrically arranged, wherein the left hinge assembly 232 is movably mounted on the left side frame 211, and the right hinge assembly 233 is movably mounted on the right side frame 212. The connecting cross bar 231 is connected to the output end of the linkage drive mechanism 22, and the two ends are respectively connected to the left hinge assembly 232 and the right hinge assembly 233. The linkage drive mechanism 22 can push the connecting cross bar 231 forward or pull it backward. When the linkage drive mechanism 22 pushes the connecting cross bar 231 forward, the left hinge assembly 232 and the right hinge assembly 233 extend synchronously, thereby lifting the leg support bracket and increasing the angle between the backrest bracket and the main frame 21. When the linkage drive mechanism 22 pulls the connecting crossbar 231 backward, the left hinge assembly 232 and the right hinge assembly 233 contract synchronously, thereby retracting the leg support bracket and reducing the angle between the backrest bracket and the main frame 21. The linkage hinge mechanism 23 makes the adjustment of the leg support bracket and the backrest bracket more stable and smooth by setting the left hinge assembly 232 and the right hinge assembly 233. The synchronous adjustment of the left hinge assembly 232 and the right hinge assembly 233 can be achieved by connecting the crossbar 231. Only one linkage drive mechanism 22 needs to be set, which not only reduces costs but also improves synchronization. The connecting crossbar 231 can also improve the structural stability of the left hinge assembly 232 and the right hinge assembly 233, ensuring the stability of the rocking chair adjustment.

[0075] As described above, the left hinge assembly 232 and the right hinge assembly 233 have the same structure; therefore, only the specific structure of the left hinge assembly 232 is described in detail here to avoid repeated description.

[0076] See also Figure 13Specifically, the left hinge assembly 232 includes a first connecting rod 2321, a second connecting rod 2322, a third connecting rod 2323, a fourth connecting rod 2324, a long rod 2325, and a left connecting plate 2326. One end of the first connecting rod 2321 and one end of the second connecting rod 2322 are both rotatably connected to the left side frame 211. The other end of the first connecting rod 2321 is rotatably connected to one end of the third connecting rod 2323. One end of the second connecting rod 2322 is rotatably connected to one end of the fourth connecting rod 2324. The third connecting rod 2323 and the fourth connecting rod 2324 are rotatably connected. The other ends of the third connecting rod 2323 and the fourth connecting rod 2324 are connected to the leg support bracket. One end of the long rod 2325 is rotatably connected to the second connecting rod 2322, and the other end of the long rod 2325 is rotatably connected to the left connecting plate 2326. The left connecting plate 2326 is rotatably connected to the left side frame 211 and is also connected to the backrest bracket. One end of the connecting crossbar 231 is connected to the second connecting rod 2322, and the other end of the connecting crossbar 231 is connected to the second connecting rod 2322 in the right hinge assembly 233. The structure of the left hinge assembly 232 provided in this embodiment allows for simultaneous raising and lowering of the leg support bracket and angle adjustment of the backrest bracket through a simple structure.

[0077] See also Figure 13 The left hinge assembly 232 also includes a fixing plate 2327. One end of the first link 2321 and one end of the second link 2322 are both rotatably connected to the fixing plate 2327, and the fixing plate 2327 is fixedly connected to the fixing plate 211. That is, one end of the first link 2321 and the second link 2322 are rotatably connected to the fixing plate 2327, thereby connecting the first link 2321 and the second link 2322 to the fixing plate 211. The provision of the fixing plate 2327 facilitates assembly of the left hinge assembly 232 and makes the structure of the left hinge assembly 232 more complete. It also makes it easier to install the left hinge assembly 232 on the fixing plate 211. Furthermore, the fixing plate 2327 connecting the first link 2321 and the second link 2322 allows for smoother extension and retraction of the left hinge assembly 232.

[0078] See also Figure 12The linkage drive mechanism 22 includes a linkage drive motor 221, a screw 222 and a movable housing 223. The output end of the linkage drive motor 221 is connected to one end of the screw 222 and is used to drive the screw 222 to rotate. The movable housing 223 is sleeved on the screw 222 and is threadedly connected to the screw 222. The linkage drive motor 221 is installed on the third cross bar 215. The end of the movable housing 223 away from the linkage drive motor 221 is connected to the linkage hinge mechanism 23, specifically to the middle position of the connecting cross bar 231. The rotation of the linkage drive motor 221 can drive the screw 222 to rotate around the central axis. When the screw 222 rotates, it can drive the movable housing 223 to move relative to the screw 222 along the vertical direction of the screw 222. The linkage drive motor 221 can be controlled to rotate forward and reverse, so the screw 222 can also rotate forward or reverse. The movable housing 223 can move in two directions under the action of the screw 222, thereby driving the linkage hinge mechanism 23 to extend or retract.

[0079] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An electric rocking chair frame based on elastic traction, characterized in that: include: Base (1); A seat frame (2), wherein both sides of the seat frame (2) are movably connected to the base (1) via a swing assembly (3), so that the seat frame (2) is suspended relative to the base (1); A drivable driving mechanism (4) mounted on the base (1); An elastic traction group (5), one end of which is connected to the base (1) or the dangling drive mechanism (4) and the other end of which is connected to the seat frame (2); The swing driving mechanism (4) can drive the elastic traction group (5) to generate elastic stretching, so as to pull the seat frame (2) to swing relative to the base (1).

2. The electric rocking chair frame based on elastic traction according to claim 1, characterized in that: The jogging drive mechanism (4) includes a jogging drive motor (41), and the elastic traction group (5) includes a first elastic member (51), the two ends of the first elastic member (51) being respectively connected to the seat frame (2) and the output end of the jogging drive mechanism (4); the output end of the jogging drive motor (41) can stretch the first elastic member (51) during rotation to cause the first elastic member (51) to undergo elastic deformation, thereby pulling the seat frame (2) to swing relative to the base (1).

3. The electric rocking chair frame based on elastic traction according to claim 2, characterized in that: The first elastic member (51) comprises a tension spring (511) and a belt (512), the two ends of the tension spring (511) being respectively connected to the output end of the xiaoyao drive motor (41) and one end of the belt (512), and the other end of the belt (512) being connected to the seat frame (2).

4. The electric rocking chair frame based on elastic traction according to claim 2, characterized in that: The elastic traction group (5) further includes a second elastic member (52), the two ends of the first elastic member (51) are respectively connected to the front lower end of the seat frame (2) and the output end of the ramble drive mechanism (4), and the two ends of the second elastic member (52) are respectively connected to the rear end of the seat frame (2) and the output end of the ramble drive mechanism (4).

5. The electric rocking chair frame based on elastic traction according to claim 4, characterized in that: The xiaoyao driving mechanism (4) further comprises a rotating mounting group (42), wherein the rotating mounting group (42) is mounted on the output end of the xiaoyao driving motor (41), and one end of the first elastic member (51) and one end of the second elastic member (52) are both connected to the rotating mounting group (42).

6. The electric rocking chair frame based on elastic traction according to claim 5, characterized in that: The rotating mounting group (42) comprises a rotating plate (421), a shaft (422) and a mounting sleeve (423); the rotating plate (421) is mounted on the output end of the Xiaoyao driving motor (41); the shaft (422) is arranged on the rotating plate (421); the mounting sleeve (423) is sleeved on the shaft (422); one end of the first elastic member (51) and one end of the second elastic member (52) are both connected to the mounting sleeve (423).

7. The electric rocking chair frame based on elastic traction according to claim 1, characterized in that: The xiaoyao driving mechanism (4) comprises a xiaoyao driving motor (41), a rotating disk (43) and a pressure rod (44), wherein the xiaoyao driving motor (41) is mounted on the base (1), the rotating disk (43) is mounted on the output end of the xiaoyao driving motor (41), and the pressure rod (44) is arranged on the rotating disk (43) and is not coaxial with the output end of the xiaoyao driving motor (41); The elastic traction group (5) includes a first elastic rope (53), the two ends of which are respectively connected to the base (1) and the seat frame (2), and the pressure rod (44) intersects with the first elastic rope (53) on a horizontal projection plane; the swing drive motor (41) rotates to drive the pressure rod (44) to rotate around the output end of the swing drive motor (41), and the pressure rod (44) can apply pressure to the first elastic rope (53) during the rotation process to cause the first elastic rope (53) to undergo elastic deformation, thereby pulling the seat frame (2) to swing relative to the base (1).

8. The electric rocking chair frame based on elastic traction according to claim 7, characterized in that: The elastic traction group (5) further includes a second elastic rope (54), the two ends of the first elastic rope (53) are respectively connected to the rear end of the base (1) and the front end of the seat frame (2), the two ends of the second elastic rope (54) are respectively connected to the front end of the base (1) and the rear end of the seat frame (2), and the pressure rod (44) and the second elastic rope (54) intersect on a horizontal projection plane.

9. The electric rocking chair frame based on elastic traction according to claim 1, characterized in that: The base (1) comprises a bottom frame, a front fixing rod (12) and a rear fixing rod (13), wherein the front fixing rod (12) and the rear fixing rod (13) are arranged and installed on the bottom frame at a front-to-back interval; The swing assembly (3) comprises a front swing rod (31), a rear swing rod (32) and a mounting plate (33); the front swing rod (31) and the rear swing rod (32) are hinged to the front fixed rod (12) and the rear fixed rod (13) respectively; the mounting plate (33) is hinged to the front swing rod (31) and the rear swing rod (32) at the same time, so that the mounting plate (33) can swing forward and backward relative to the bottom frame; the left and right ends of the seat frame (2) are respectively mounted on the mounting plates (33) of the two sets of the swing assemblies (3).

10. The electric rocking chair frame based on elastic traction according to claim 1, characterized in that: The seat frame (2) comprises: a main frame (21) detachably mounted on the two sets of the swing assemblies (3); A linkage drive mechanism (22) mounted on the main frame (21); A linked hinge mechanism (23) is movably mounted on the main frame (21) and connected to the output end of the driving mechanism; The end of the linkage hinge mechanism (23) close to the front of the main frame (21) is used to install the leg support bracket, and the end close to the rear of the main frame (21) is used to install the backrest bracket; the driving mechanism can drive the linkage hinge mechanism (23) to extend or contract, thereby adjusting the leg support bracket to be raised or retracted and adjusting the angle between the backrest bracket and the main frame (21).

Images