Elastic piece-type rhythmic mechanism and rhythmic furniture

Abstract

This application relates to the technical field related to furniture, and in particular to an elastic piece-type rhythmic mechanism and rhythmic furniture. The elastic piece-type rhythmic mechanism includes a first frame, a second frame movable relative to the first frame, a drive mechanism for driving the second frame to move back and forth relative to the first frame, and an elastic piece-oriented structure whose upper end is connected to the first frame and whose lower end is connected to the second frame, which moves along with the second frame and is elastically deformable, with the deformation direction being the same as the movement direction of the second frame. This is advantageous in preventing the second frame from deviating from the movement direction, i.e., preventing the second frame from deviating from the movement direction and swaying, improving the stability of the elastic piece-type rhythmic mechanism during movement and improving user comfort. It also has a simple structure, low cost, and long service life.

Description

[Technical Field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to Chinese Patent Application No. 202311554205X, filed with the China Patent Office on November 20, 2023, entitled "Elastic Piece-Type Rhythmic Frame and Rhythmic Furniture," and Chinese Patent Application No. 2024204772062, filed with the China Patent Office on March 8, 2024, entitled "Base Frame Device for Massage Furniture and Massage Furniture," the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field related to furniture, and in particular to a resilient piece-type rhythmic mechanism and rhythmic furniture. [Background technology]

[0003] As people's living environments improve, various furniture such as rhythmic chairs and rhythmic beds are rapidly developing. Rhythmic furniture provides rhythmic massage to the user by moving back and forth through its frame.

[0004] In the prior art, with regard to the frame of a pulsating furniture, reference is made to patent application publication number CN219515773U, which discloses a vibration device and furniture in which the swinging frame moves back and forth relative to the fixed frame, and the guide structure between the swinging frame and the fixed frame mainly uses a swinging member and a universal joint assembly to connect and couple with a wire rope to limit the relative position and movement direction of the fixed frame and the swinging frame. The guide structure is complicated and expensive, and the wire rope not only has poor stability but also a short service life. Summary of the Invention

[0005] This application provides an elastic piece-type rhythm mechanism to solve the problems of the prior art, such as the complicated and expensive guide structure of the frame of the rhythm furniture, the poor stability of the wire rope, and the short service life.

[0006] This application is A first frame; a second frame movable relative to the first frame; a drive mechanism having a power output end connected to the second frame so as to be capable of transmitting power, and driving the second frame to reciprocate relative to the first frame; The present invention provides an elastic piece-type rhythmic mechanism including an elastic piece-oriented structure that is installed vertically, has one end connected to a first frame and the other end connected to a second frame, moves following the second frame, is elastically deformable, and has a deformation direction that is the same as the movement direction of the second frame.

[0007] According to the elastic piece type rhythmic mechanism provided by the present application, the upper end of the elastic piece oriented structure is connected to the first frame, and the lower end of the elastic piece oriented structure is connected to the second frame.

[0008] According to the elastic piece type rhythmic mechanism provided by the present application, the lower end of the elastic piece oriented structure is connected to the first frame, and the upper end of the elastic piece oriented structure is connected to the second frame.

[0009] According to the elastic piece type rhythmic mechanism provided by the present application, the elastic piece oriented structure includes an elastic piece, an upper end of the elastic piece is connected to the first frame, and a lower end of the elastic piece is connected to the second frame; Here, when the second frame and the first frame move relative to each other, the directions of the force applied by the second frame to the elastic plate are perpendicular to the plate surfaces of the elastic plates.

[0010] The elastic piece-type rhythmic mechanism provided by the present application further includes a partition structure for spacing the upper end of the elastic piece and the first frame, and the lower end of the elastic piece and the second frame.

[0011] According to the elastic piece type rhythmic mechanism provided by the present application, the partition structure comprises: a first spacer provided between the upper end of the elastic plate and the first frame, the upper end of which is connected to the first frame and the other end of which is connected to the upper end of the elastic plate, and the first spacer having a first recess that fits the width of the elastic plate; a second spacer provided between the lower end of the elastic plate and the second frame, one end of which is connected to the second frame and the other end of which is connected to the lower end of the elastic plate, and having a second recess that fits the width of the elastic plate; The first spacer has a thickness less than the distance between the plate surface of the elastic plate facing the first frame and the first frame, and the second spacer has a thickness less than the distance between the plate surface of the elastic plate facing the second frame and the second frame.

[0012] According to the elastic piece type pulsating mechanism provided by the present application, the upper end of the elastic piece is detachably connected to the first spacer, and the lower end of the elastic piece is detachably connected to the second spacer.

[0013] According to the elastic piece-type rhythmic mechanism provided by the present application, there are multiple groups of elastic piece-oriented structures, and the elastic piece-oriented structures of some groups are located on one side where the first frame and the second frame are combined, and the elastic piece-oriented structures of the remaining groups are located on the other side where the first frame and the second frame are combined.

[0014] According to the elastic piece type rhythmic mechanism provided by the present application, the driving mechanism comprises: a drive motor provided on the first frame; a transmission assembly having one end operably connected to the output shaft of the drive motor; a reciprocating unit having one end eccentrically connected to the other end of the transmission assembly and the other end connected to the second frame;

[0015] According to the elastic piece type pulsating mechanism provided by the present application, the transmission assembly comprises: an eccentric shaft rotatably disposed on the first frame and rotatably connected to the reciprocating unit; a drive pulley connected to the drive motor in a transmissive manner; a driven pulley fitted onto the eccentric shaft; a transmission belt wound around the driving pulley and the driven pulley, The rotation center line of the structure of the part of the reciprocating unit that cooperates with the eccentric shaft does not overlap with the rotation center line of the structure of the part of the driven pulley that cooperates with the eccentric shaft, and a flywheel is provided at one end of the eccentric shaft that is away from the driven pulley.

[0016] According to the elastic piece type pulsating mechanism provided by the present application, the reciprocating movement unit comprises: a first reciprocating plate connected to the eccentric shaft; a second reciprocating plate connected to the second frame; a deformation plate having one end connected to the first reciprocating plate and the other end connected to the second reciprocating plate, with a gap between the opposing ends of the first reciprocating plate and the second reciprocating plate.

[0017] The present application further provides a rhythmic piece of furniture including the elastic piece-type rhythmic mechanism.

[0018] In the elastic piece-type rhythmic mechanism provided by the present application, when the drive mechanism drives the second frame to move relative to the first frame, the elastic piece-oriented structure can elastically deform in accordance with the movement direction of the second frame, and the movement direction of the second frame is restricted by the elastic piece-oriented structure itself, which is advantageous in preventing the second frame from deviating from the movement direction, i.e., preventing the second frame from deviating from the movement direction and shaking, improving the stability of the elastic piece-type rhythmic mechanism during movement and improving user comfort, and also having a simple structure, low cost, and long service life. [Brief explanation of the drawings]

[0019] In order to more clearly describe the technical solutions in the present application or the prior art, the following briefly introduces drawings used in the embodiments or the description of the prior art. It should be understood that the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without any creative efforts.

[0020] [Figure 1] FIG. 2 is a structural schematic diagram of one embodiment of a first frame, a second frame, a driving mechanism, and a resilient piece directing structure of the resilient piece-type rhythmic mechanism provided by the present application, seen from a first perspective. [Figure 2] FIG. 2 is a schematic diagram of the explosion in FIG. 1. [Figure 3] FIG. 2 is a structural schematic diagram of an embodiment of the first frame, the second frame, the driving mechanism and the elastic piece directing structure of the elastic piece-type rhythmic mechanism provided by the present application, viewed from a second perspective. [Figure 4] FIG. 10 is a perspective view showing another embodiment of a resilient piece type rhythm mechanism provided by the present application. [Figure 5] FIG. 10 is a right side view showing another embodiment of a resilient piece type rhythm mechanism provided by the present application. [Figure 6] 1 is a schematic diagram showing an assembly structure of an elastic piece directional structure and a partition structure provided by the present application; [Figure 7] FIG. 7 is a schematic diagram of the explosion in FIG. 6. [Figure 8] FIG. 2 is a structural schematic diagram of a driving mechanism provided by the present application; [Figure 9] FIG. 9 is a schematic diagram of the explosion in FIG. 8. DETAILED DESCRIPTION OF THE INVENTION

[0021] In order to more clearly explain the objectives, technical solutions and advantages of the present application, the following clearly and completely describes the technical solutions in the embodiments of the present application in conjunction with the drawings in the present application, and it is obvious that the described embodiments are only a part of the present application, and are not all of it. Based on the embodiments in the present application, all other embodiments that can be obtained by those skilled in the art without any creative efforts shall fall within the protection scope of the present application.

[0022] The elastic piece-type rhythmic mechanism and rhythmic furniture of the present application will be described below with reference to Figures 1 to 9. The rhythmic furniture includes the elastic piece-type rhythmic mechanism. Regarding the types of the rhythmic furniture, the rhythmic furniture may be a rhythmic chair, a rhythmic bed, etc., and in the embodiments of the present application, a rhythmic chair will be described as an example of the rhythmic furniture.

[0023] Referring to FIGS. 1 to 7, the elastic piece type rhythmic mechanism provided by the present application includes a first frame 10, a second frame 20, a driving mechanism 30 and an elastic piece directing structure 40.

[0024] Specifically, the second frame 20 and the first frame 10 can move relatively back and forth, the power output end of the drive mechanism 30 is connected to the second frame 20 in a transmissible manner, the drive mechanism 30 drives the second frame 20 to move back and forth relative to the first frame 10, the elastic one-piece directional structure 40 is arranged vertically, one end of the elastic one-piece directional structure 40 is connected to the first frame 10, and the other end of the elastic one-piece directional structure 40 is connected to the second frame 20, the elastic one-piece directional structure 40 moves in accordance with the movement of the second frame 20 and is elastically deformable, and the deformation direction is the same as the movement direction of the second frame 20.

[0025] In the elastic piece-type rhythmic mechanism provided by the present application, when the drive mechanism 30 drives the second frame 20 to move relative to the first frame 10, the elastic piece-oriented structure 40 can elastically deform in accordance with the moving direction of the second frame 20, and the moving direction of the second frame 20 is restricted by the elastic piece-oriented structure 40 itself. This is advantageous in preventing the second frame 20 from deviating from the moving direction, i.e., preventing the second frame 20 from deviating from the moving direction and swaying, improving the stability of the elastic piece-type rhythmic mechanism during movement and improving user comfort. It also has a simple structure, low cost, and long service life.

[0026] It should be noted that the main body that supports the user is attached to the second frame 20 and may be a sofa or a bed, in which case it is fixed to the second frame 20 via screws.

[0027] The first frame 10, the second frame 20, and the elastic piece-shaped directional structure 40 are assembled together in two ways. In the first way, the upper end of the elastic piece-shaped directional structure 40 is connected to the first frame 10, and the lower end of the elastic piece-shaped directional structure 40 is connected to the second frame 20. In this way, the second frame 20 is suspended from the first frame 10 by the elastic piece-shaped directional structure 40. This is advantageous in preventing the second frame from deviating from the direction of movement, i.e., preventing the second frame from swaying due to deviation from the direction of movement, improving the stability of the elastic piece-shaped rhythmic mechanism during movement and improving user comfort. It also has a simple structure, low cost, and long service life. In the second way, the lower end of the elastic piece-shaped directional structure 40 is connected to the first frame 10, and the upper end of the elastic piece-shaped directional structure 40 is connected to the second frame 20. In this way, the second frame 20 is elevated above the first frame 10 by the elastic piece-shaped directional structure 40. It serves to lift the second frame, improves the bearing and support effects, plays a buffering role during the movement of the second frame, realizes a regular rhythmic massage effect, helps to lift the second frame and maintain its stability, protects related components from damage, and improves the comfort of the user.

[0028] 1, 2, 6, and 7, it can be seen that in this embodiment, the elastic piece-oriented structure 40 includes an elastic plate 41, the upper end of which is connected to the first frame 10, and the lower end of which is connected to the second frame 20. When the second frame 20 and the first frame 10 move relative to each other, the direction of the force exerted by the second frame 20 on the elastic plate 41 is perpendicular to the surface of the elastic plate 41. By adopting this structure, when the second frame 20 moves, the force is dispersed and absorbed by the bending elasticity of the elastic plate 41 itself, thereby restricting the movement direction of the second frame 20. Compared with the wire rope of the prior art, the elastic plate 41 has a planar shape and excellent structural stability, which can prevent the second frame 20 from deviating from the movement direction, thereby improving the stability of the elastic piece-type rhythmic mechanism during movement and improving user comfort.

[0029] In this embodiment, the second frame 20 and the first frame 10 move relatively back and forth in the spatial direction, and the second frame 20 is arranged over the first frame 10, so the elastic plate 41 is arranged in the vertical direction.

[0030] 1, 2, 6, and 7, some embodiments of the present application further include a partition structure 50 for spacing the upper end of the elastic plate 41 from the first frame 10 and the lower end of the elastic plate 41 from the second frame 20. According to the above structure, when the second frame 20 moves relative to the first frame 10, the installation of the partition structure 50 is advantageous in preventing the elastic plate 41 from contacting or colliding with the first frame 10 or the second frame 20 during elastic deformation of the elastic plate 41, thereby reducing noise and improving comfort during use.

[0031] Specifically, referring to Figures 1, 2, 6 and 7, in some embodiments of the present application, the partition structure 50 includes a first spacer 51 arranged between the upper end of the elastic plate 41 and the first frame 10, with its upper end connected to the first frame 10 and its other end connected to the upper end of the elastic plate 41, and having a first recess 511 that fits the width of the elastic plate 41; and a second spacer 52 arranged between the lower end of the elastic plate 41 and the second frame 20, with one end connected to the second frame 20 and the other end connected to the lower end of the elastic plate 41, and having a second recess 521 that fits the width of the elastic plate 41, wherein the first spacer 51 has a thickness that is less than the distance between the plate surface of the elastic plate 41 facing the first frame 10 and the first frame 10, and the second spacer 52 has a thickness that is less than the distance between the plate surface of the elastic plate 41 facing the second frame 20 and the second frame 20.

[0032] According to the above structure, the upper end of the elastic plate 41 is connected to the first frame 10 via the first spacer 51, and the lower end is connected to the second frame 20 via the second spacer 52, thereby further avoiding direct contact between the elastic plate 41 and the first frame 10 and the second frame 20. In addition, the first spacer 51 is provided with a first recess 511, and the second spacer 52 is provided with a second recess 521. When the elastic plate 41 elastically deforms, the first recess 511 and the second recess 521 not only serve to provide a retraction area, but also provide the elastic plate 41 with a deformation space that guides and protects the deformation of the elastic plate 41. This structure is advantageous in reducing noise and improving comfort during use, making it more rational.

[0033] The thickness of both the first spacer 51 and the second spacer 52 should be such that the elastic plate 41 can be prevented from contacting and colliding with the first frame 10 and the second frame 20 during deformation.

[0034] Specifically, referring to Figures 2, 6 and 7, in the embodiment of the present application, the upper end of the elastic plate 41 is detachably connected to the first spacer 51, and the lower end of the elastic plate 41 is detachably connected to the second spacer 52, thereby facilitating attachment, detachment and maintenance.

[0035] Although the first spacer 51 and the second spacer 52 are both n-shaped, they may of course be V-shaped, etc. A first welding plate is welded to the first frame 10, and one side wall of the first spacer 51 is welded to the first welding plate, but of course it may be detachably connected to the first welding plate by snap-fitting, bolt-fitting, etc. A second welding plate is welded to the second frame 20, and one side wall of the second spacer 52 is welded to the second welding plate, but of course it may be detachably connected to the second welding plate by snap-fitting, bolt-fitting, etc., and this is not limited here.

[0036] 2, 6 and 7, in this embodiment, a connecting through-hole 411 is provided at each of the upper and lower ends of the elastic plate 41, a first mounting through-hole 512 is provided in the first spacer 51, and a second mounting through-hole 522 is provided in the second spacer 52, with the connecting through-hole 411 at the upper end of the elastic plate 41 corresponding to and mating with the first mounting through-hole 512, and the connecting through-hole 411 at the lower end of the elastic plate 41 corresponding to and mating with the second mounting through-hole 522. As can be seen, the first bolt passes through the connecting through-hole 411 and the first mounting through-hole 512 and is screwed into the first nut, and the second bolt passes through the connecting through-hole 411 and the second mounting through-hole 522 and is screwed into the second nut, thereby allowing the elastic plate 41 to be detachably arranged, resulting in a simple structure and facilitating manufacture and maintenance. Of course, in some embodiments, the connection may be detachably made by a fastening structure or the like, or may be fixedly made by welding, and is not limited thereto.

[0037] 2, 6 and 7, in some embodiments of the present application, the elastic piece-oriented structure 40 further includes a plurality of washers 42, and each washer 42 is fitted one-to-one with each connecting through-hole 411 on the elastic plate 41. As can be seen, the bolt passes through the washer 42 in the connecting through-hole 411 and is screwed into the nut, which simplifies the structure, reduces friction on the elastic plate 41, and improves the stability of the connection.

[0038] The number of washers 42 of each of the elastic piece-directional structures 40 in each group is four in total, and is set according to the number of connection through-holes 411 .

[0039] 2, 6 and 7, in some embodiments of the present application, the elastic piece-oriented structure 40 further includes two pressure plates 43, which are located at the upper and lower ends of the elastic plate 41, respectively, and which are fitted over one side of the washer 42, and which are provided with a coupling through-hole 431 that communicates with the hollow portion of the washer 42. The provision of the pressure plate 43 fitted over the washer 42 can improve the stability of the elastic plate 41 during installation and deformation of the elastic plate 41.

[0040] The elastic plate 41 is made of steel. Of course, in some embodiments, the elastic piece-oriented structure 40 may be a tension spring, a torsion spring, an elastic column, etc., depending on the specific structure, and is not limited here.

[0041] As can be understood, referring to Figures 1, 2 and 3, in some embodiments of the present application, there are multiple groups of elastic piece-directional structures 40, and some groups of elastic piece-directional structures 40 are located on the front side of the combination of the first frame 10 and the second frame 20, and the remaining groups of elastic piece-directional structures 40 are located on the rear side of the combination of the first frame 10 and the second frame 20, thereby improving the stability of the relative movement between the second frame 20 and the first frame 10.

[0042] Specifically, referring to FIG. 1, in this embodiment, there are four groups of the elastic one-sided directional structures 40, and the corresponding partition structures 50 are set to four groups, the same as the number of the elastic one-sided directional structures 40, so that it can be understood that two groups of elastic one-sided directional structures 40 are provided on each of the opposing front and rear sides of the first frame 10 and the second frame 20, thereby further improving the stability of movement.

[0043] Of course, the number of the elastic one-sided directional structures 40 is not limited to four, and in some embodiments, the number of the elastic one-sided directional structures 40 can be one, two, three or more. For example, one group of the elastic one-sided directional structures 40 is provided on each of the opposing front and rear sides of the first frame 10 and the second frame 20, or one group of the elastic one-sided directional structures 40 is provided on each of the opposing front and rear sides of the first frame 10 and the second frame 20, and two groups of the elastic one-sided directional structures 40 are provided on each of the opposing front and rear sides of the first frame 10 and the second frame 20, or three groups of the elastic one-sided directional structures 40 are provided on each of the opposing front and rear sides of the first frame 10 and the second frame 20, or in some cases, when the number of the elastic one-sided directional structures 40 is one, one group of the elastic one-sided directional structures 40 is provided on each of the opposing front or rear sides of the first frame 10 and the second frame 20, and is not limited thereto.

[0044] 1 to 3 and 8 to 9, it can be seen that in some embodiments of the present application, the drive mechanism 30 includes a drive motor 31 provided on the first frame 10, a transmission assembly 32 having one end operably connected to the output shaft of the drive motor 31, and a reciprocating unit 33 having one end eccentrically connected to the other end of the transmission assembly 32 and the other end connected to the second frame 20. By adopting the above structure, when the drive motor 31 is operated, the second frame 20 reciprocates back and forth relative to the first frame 10 through eccentric transmission between the transmission assembly 32 and the reciprocating unit 33, and the eccentric arrangement is useful for realizing pressure regulation, vibration control, and mechanical transmission.

[0045] Specifically, referring to Figures 1 to 3, 8 and 9, in some embodiments of the present application, the transmission assembly 32 is rotatably arranged on the first frame 10, and includes an eccentric shaft 321 operably connected to the reciprocating unit 33, a driving pulley 322 operably connected to the drive motor 31, a driven pulley 323 fitted to the eccentric shaft 321, and a transmission belt 324 wound around the driving pulley 322 and the driven pulley 323, wherein the rotation center line of the structure of the part of the reciprocating unit 33 that cooperates with the eccentric shaft 321 does not overlap with the rotation center line of the structure of the part of the driven pulley 323 that cooperates with the eccentric shaft 321, and a flywheel 325 is provided at one end of the eccentric shaft 321 away from the driven pulley 323. By adopting the above structure, the pulley transmission has a certain inertia, which can reduce the shock and vibration in mechanical transmission, and provides a simple, flexible and economical power transmission method, thereby improving the stability of the elastic piece-type rhythmic mechanism during reciprocating movement. In addition, the provision of the flywheel 325 can smooth the output torque of the drive motor 31, modulate the speed response, provide additional energy output, and improve the stability of the transmission.

[0046] Of course, in some embodiments, the transmission assembly 32 may be a sprocket transmission or the like, and is not limited herein.

[0047] Specifically, referring to Figures 3, 8 and 9, in an embodiment of the present application, the reciprocating movement unit 33 includes a first reciprocating plate 331 connected to the eccentric shaft 321, a second reciprocating plate 332 connected to the second frame 20, and a deformation plate 333 having one end connected to the first reciprocating plate 331 and the other end connected to the second reciprocating plate 332, and having a gap between the opposing ends of the first reciprocating plate 331 and the second reciprocating plate 332. By adopting the above structure, when the eccentric shaft 321 performs eccentric transmission, the first reciprocating plate 331 moves back and forth and simultaneously oscillates up and down. Therefore, in the process of the first reciprocating plate 331 transmitting power to the second reciprocating plate 332, the deformation plate 333 provided between the first reciprocating plate 331 and the second reciprocating plate 332 adapts to the up and down oscillation of the first reciprocating plate 331 through its deformation, which is advantageous in avoiding the up and down oscillation caused by the transmission of power to the second reciprocating plate 332. The second reciprocating plate 332 can more smoothly drive the movement of the second frame 20 relative to the first frame 10. The smooth transmission is advantageous in reducing noise, and also has a simple structure and low manufacturing costs.

[0048] Specifically, referring to Figures 3, 8 and 9, in the embodiment of the present application, the reciprocating unit 33 further includes a first pad 334 and a second pad 335, there is a gap between the first pad 334 and the second pad 335, the first pad 334 corresponds to the first reciprocating plate 331, the second pad 335 corresponds to the second reciprocating plate 332, one end of the deformation plate 333 is sandwiched between the first reciprocating plate 331 and the first pad 334, and the other end is sandwiched between the second reciprocating plate 332 and the second pad 335, which can further improve the installation stability and transmission performance of the deformation plate 333.

[0049] The gap between the first pad 334 and the second pad 335 is the same as the gap between the opposing ends of the first reciprocating plate 331 and the second reciprocating plate 332, which helps to match the deformation amplitude during back-and-forth movement of the deformable plate 333 and maintain stability. The deformable plate 333 is a rubber plate, and both the first reciprocating plate 331 and the second reciprocating plate 332 are detachably connected to the rubber plate by bolt fitting or the like. Of course, the deformable plate 333 may also be a thin steel plate, which helps to ensure that the second reciprocating plate 332 moves only back and forth without vibrating up and down during movement, and is not limited thereto. The first reciprocating plate 331 and the second reciprocating plate 332 may be formed by detachably connecting a plurality of connecting plates. In some embodiments, the first reciprocating plate 331 and the second reciprocating plate 332 may also be plate-shaped or column-shaped, and is not limited thereto.

[0050] Finally, it should be explained that the above-mentioned embodiments are only for illustrating the technical solutions of the present application, and are not intended to limit the same. Although the present application has been described in detail with reference to the above embodiments, it is understandable to those skilled in the art that the technical solutions described in the above embodiments may be modified or some of their technical features may be equivalently replaced, and such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application. [Explanation of symbols]

[0051] 10 First Frame 20 2nd frame, 30 Drive mechanism 31 Drive motor 32 Transmission Assembly 321 Eccentric shaft 322 Driving pulley 323 Driven pulley 324 Transmission Belt 325 flywheel 33 Reciprocating unit 331 1st reciprocating board 332 2nd reciprocating plate 333 Deformed Plate 334 First Pad 335 2nd pad, 40 Elastic unidirectional structure 41 Elastic Plate 411 Connection through hole 42 Washer 51 First spacer 511 First recess 512 First mounting hole 52 Second spacer 521 Second recess 522 Second mounting hole

Claims

1. a first frame (10); a second frame (20) movable relative to the first frame (10); a drive mechanism (30) whose power output end is connected to the second frame (20) so as to be capable of transmitting power, and which drives the second frame (20) to reciprocate relative to the first frame (10); and an elastic piece-type rhythmic mechanism comprising: an elastic piece-oriented structure (40) that is installed vertically, one end of which is connected to a first frame (10) and the other end of which is connected to the second frame (20), the elastic piece-oriented structure (40) moving in accordance with the second frame (20) and being elastically deformable, with the deformation direction being the same as the movement direction of the second frame (20).

2. 2. The elastic piece-type rhythmic mechanism according to claim 1, wherein the upper end of the elastic piece-oriented structure (40) is connected to the first frame (10), and the lower end of the elastic piece-oriented structure (40) is connected to the second frame (20).

3. 2. The elastic piece-type rhythmic mechanism according to claim 1, wherein the lower end of the elastic piece-oriented structure (40) is connected to the first frame (10), and the upper end of the elastic piece-oriented structure (40) is connected to the second frame (20).

4. The elastic piece-type rhythmic mechanism according to any one of claims 1 to 3, characterized in that there are multiple groups of elastic piece-directional structures (40), and the elastic piece-directional structures (40) of some groups are located on one side where the first frame (10) and the second frame (20) are combined, and the elastic piece-directional structures (40) of the remaining groups are located on the other side where the first frame (10) and the second frame (20) are combined.

5. The drive mechanism (30) a drive motor (31) provided on the first frame (10); a transmission assembly (32) having one end operably connected to the output shaft of the drive motor (31); a reciprocating unit (33) having one end eccentrically connected to the other end of the transmission assembly (32) and the other end connected to the second frame (20).

6. The transmission assembly (32) an eccentric shaft (321) rotatably disposed on the first frame (10) and rotatably connected to the reciprocating unit (33); a drive pulley (322) rotatably connected to the drive motor (31); a driven pulley (323) fitted onto the eccentric shaft (321); a transmission belt (324) wound around the driving pulley (322) and the driven pulley (323); 6. The elastic piece-type rhythmic mechanism according to claim 5, wherein the rotation center line of the structure of the part of the reciprocating unit (33) that cooperates with the eccentric shaft (321) does not overlap with the rotation center line of the structure of the part of the driven pulley (323) that cooperates with the eccentric shaft (321), and a flywheel (325) is provided at one end of the eccentric shaft (321) away from the driven pulley (323).

7. The reciprocating unit (33) a first reciprocating plate (331) connected to the eccentric shaft (321); a second reciprocating plate (332) connected to the second frame (20); 6. The elastic piece-type rhythmic mechanism according to claim 5, further comprising: a deformable plate (333) having one end connected to the first reciprocating plate (331) and the other end connected to the second reciprocating plate (332), with a gap between the opposing ends of the first reciprocating plate (331) and the second reciprocating plate (332).

8. A rhythmic piece of furniture comprising the elastic piece-type rhythmic mechanism according to any one of claims 1 to 7.

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