Labor-saving driving rhythm rack and rhythm furniture

Abstract

The utility model relates to the technical field of furniture, and provides a driving labor-saving rhythm rack and rhythm furniture, the rhythm rack comprises a fixed underframe, a rhythm support, a transmission rod and a driving mechanism, the rhythm support is in transmission connection with one end of the transmission rod, the transmission rod is rotatably connected to the fixed underframe, the transmission rod is provided with a first end and a second end, and the driving mechanism is connected with the driving mechanism. The first end is in transmission connection with the rhythm support, the driving mechanism is arranged on the fixed underframe, and the output end of the driving mechanism is in transmission connection with the second end to drive the transmission rod to rotate and drive the rhythm support to reciprocate relative to the fixed underframe; wherein a resisting arm is arranged from the first end of the transmission rod to the rotating center, a power arm is arranged from the second end of the transmission rod to the rotating center, and the length of the power arm is larger than that of the resisting arm. The extension of the power arm can reduce the power, so that the transmission rod is configured to be a labor-saving lever, the transmission rod is driven to move through the driving mechanism so as to drive the rhythm support to move relative to the fixed bottom frame, time and labor are saved, and reduction of the output power is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture, in particular to a driving labor-saving rhythm machine frame and a rhythm furniture. Background Art

[0002] At present, some furniture such as massage chairs and massage sofa beds are installed with a rhythm machine frame at the bottom. The rhythm machine frame can enable the furniture to have a function of reciprocating back and forth, so as to perform rhythm massage on the user.

[0003] In the related art, the rhythm machine frame includes a bottom frame and a rhythm support frame, and the rhythm is realized by the relative movement of the rhythm support frame with respect to the bottom frame. However, in the above-mentioned rhythm machine frame, the driving process of the driving mechanism for driving the movement of the rhythm support frame is relatively laborious and has a large output power. Summary of the Utility Model

[0004] The utility model provides a driving labor-saving rhythm machine frame to solve the problems that the driving process of the driving mechanism of the rhythm machine frame in the related art is relatively laborious and has a large output power.

[0005] The utility model provides a driving labor-saving rhythm machine frame, including:

[0006] A fixed bottom frame;

[0007] A rhythm support frame, which is movably arranged on the fixed bottom frame in the front-back direction, and the rhythm support frame is in transmission connection with one end of a transmission rod;

[0008] A transmission rod, which is rotatably connected to the fixed bottom frame, the transmission rod has a first end and a second end, and the first end of the transmission rod is in transmission connection with the rhythm support frame;

[0009] A driving mechanism, which is arranged on the fixed bottom frame, and the output end of the driving mechanism is in transmission connection with the second end of the transmission rod to drive the transmission rod to rotate and drive the rhythm support frame to reciprocate relative to the fixed bottom frame;

[0010] Wherein, the distance from the first end of the transmission rod to its rotation center is the resistance arm, the distance from the second end of the transmission rod to its rotation center is the power arm, and the length of the power arm is greater than the length of the resistance arm.

[0011] According to a driving labor-saving rhythm machine frame provided by the utility model, the rhythm support frame is rotatably connected to one end of the transmission rod, and the output end of the driving mechanism is rotatably connected to the second end of the transmission rod.

[0012] According to a driving labor-saving rhythm machine frame provided by the present utility model, the rhythm frame is rotatably connected to the first end of the transmission rod through a first connection assembly, and the first connection assembly includes:

[0013] A connecting seat, which is fixedly connected to the rhythm frame;

[0014] A first connecting member, one end of the first connecting member is provided with a first connecting portion, the other end of the first connecting member is provided with a second connecting portion, the first connecting portion is rotatably inserted into the connecting seat, and the second connecting portion is rotatably inserted into the first end of the transmission rod;

[0015] Wherein, a first bearing sleeving the first connecting portion is provided between the first connecting portion and the connecting seat, and a second bearing sleeving the second connecting portion is provided between the second connecting portion and the first end of the transmission rod.

[0016] According to a driving labor-saving rhythm machine frame provided by the present utility model, the output end of the driving mechanism is rotatably connected to the second end of the transmission rod through a second connection assembly, and the second connection assembly includes:

[0017] A second connecting member, one end of the second connecting member is provided with a third connecting portion, the other two ends of the second connecting member are provided with a fourth connecting portion, the third connecting portion is rotatably inserted into the output end of the driving mechanism, and the fourth connecting portion is rotatably inserted into the second end of the transmission rod;

[0018] A third bearing, which is provided between the third connecting portion and the output end of the driving mechanism and sleeving the third connecting portion;

[0019] A fourth bearing, which is provided between the fourth connecting portion and the second end of the transmission rod and sleeving the fourth connecting portion.

[0020] According to a driving labor-saving rhythm machine frame provided by the present utility model, the fixed chassis is provided with a mounting seat, the mounting seat is provided with a mounting post, the mounting post is rotatably inserted into the transmission rod and the two are relatively rotatable, and a mounting bearing sleeving the mounting post is provided between the transmission rod and the mounting post.

[0021] According to a driving labor-saving rhythm machine frame provided by the present utility model, the driving mechanism includes:

[0022] Magnetic force drive assembly, the magnetic force drive assembly includes a coil unit and a magnetic core unit, the coil unit is arranged on the fixed chassis, the magnetic core unit is movably disposed through the coil unit, and a magnetic force is generated between the coil unit and the magnetic core unit through a magnetic field change, so that the magnetic core unit reciprocates relative to the coil unit;

[0023] Drive plate, one end of the drive plate is connected to the end of the magnetic core unit, and the other end of the drive plate opposite to the one end is in transmission connection with the second end of the transmission rod.

[0024] According to a driving labor-saving rhythm machine frame provided by the present invention, there are two groups of the transmission rods, the two groups of the transmission rods are arranged oppositely and are respectively located on opposite sides of the coil unit;

[0025] There are two drive plates, the two drive plates are arranged oppositely and are respectively located on opposite sides of the coil unit, and the two drive plates are respectively connected to opposite ends of the magnetic core unit.

[0026] According to a driving labor-saving rhythm machine frame provided by the present invention, the drive plate is detachably connected to the end of the magnetic core unit.

[0027] According to a driving labor-saving rhythm machine frame provided by the present invention, a guiding mechanism for connecting the fixed chassis and the rhythm support frame and guiding their relative movement is provided between the fixed chassis and the rhythm support frame.

[0028] The present invention also provides a rhythm furniture, including the above-mentioned driving labor-saving rhythm machine frame.

[0029] The driving labor-saving rhythm machine frame provided by the present invention, through the above settings, adopts the principle of lever balance. By making the length of the power arm greater than the length of the resistance arm and extending the power arm, the power can be reduced, so that the transmission rod is configured as a labor-saving lever. Therefore, when the transmission rod is driven by the driving mechanism to drive the rhythm support frame to move relative to the fixed chassis, it is time-saving and labor-saving, which is beneficial to reducing the output power of the driving mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the present invention or related technologies, the following will briefly introduce the drawings required for use in the embodiments or related technology descriptions. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0031] Figure 1 It is an overall structural schematic diagram of the driving labor-saving rhythm machine frame provided by the present invention.

[0032] Figure 2 It is a schematic diagram of the cooperation structure of the transmission rod and the drive mechanism provided by the present utility model.

[0033] Figure 3 is Figure 2 a partial exploded schematic diagram of

[0034] Figure 4 It is a schematic diagram of the structure of the transmission rod provided by the present utility model.

[0035] Reference numerals:

[0036] 100, fixed chassis; 110, mounting seat; 111, mounting post; 112, mounting bearing; 200, rhythm bracket; 300, transmission rod; O, rotation center; L1, resistance arm; L2, power arm; 310, first end; 320, second end; 400, drive mechanism; 410, magnetic power drive assembly; 411, coil unit; 412, magnetic core unit; 420, drive plate; 421, first plate body; 422, second plate body; 430, protective cover; 510, connecting seat; 520, first connecting member; 521, first connecting portion; 522, second connecting portion; 530, first bearing; 540, second bearing; 610, second connecting member; 611, third connecting portion; 612, fourth connecting portion; 620, third bearing; 630, fourth bearing; 700, guiding mechanism. Specific embodiments

[0037] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the present utility model will be clearly and completely described below with reference to the accompanying drawings in the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0038] The following combines Figures 1 - 4 to describe the drive-saving rhythm machine frame and rhythm furniture of the present utility model. The rhythm furniture includes the above drive-saving rhythm machine frame and a bearing body. By reciprocating the drive-saving rhythm machine frame back and forth, the bearing body can be driven to move relatively rhythmically. It can be understood that in the embodiments of the present utility model, the above rhythm furniture can be a rhythm chair, a rhythm bed, etc.

[0039] It can be understood that with reference to Figures 1 to 4, the present utility model provides a driving labor-saving rhythm machine frame, which includes a fixed base frame 100, a rhythm support frame 200, a transmission rod 300 and a driving mechanism 400. The rhythm support frame 200 is movably arranged on the fixed base frame 100 in the front-back direction. The rhythm support frame 200 is in transmission connection with one end of the transmission rod 300. The transmission rod 300 is rotatably connected to the fixed base frame 100. The transmission rod 300 has a first end 310 and a second end 320. The first end 310 of the transmission rod 300 is in transmission connection with the rhythm support frame 200. The driving mechanism 400 is arranged on the fixed base frame 100. The output end of the driving mechanism 400 is in transmission connection with the second end 320 of the transmission rod 300 to drive the transmission rod 300 to rotate and drive the rhythm support frame 200 to reciprocate relative to the fixed base frame 100. Wherein, the distance from the first end 310 of the transmission rod 300 to its rotation center O is the resistance arm L1, and the distance from the second end 320 of the transmission rod 300 to its rotation center O is the power arm L2, and the length of the power arm L2 is greater than the length of the resistance arm L1.

[0040] The driving labor-saving rhythm machine frame provided by the present utility model, through the above settings, adopts the principle of lever balance. By making the length of the power arm L2 greater than the length of the resistance arm L1 and extending the power arm L2, the power can be reduced, so that the transmission rod 300 is configured as a labor-saving lever. Therefore, when the driving mechanism 400 drives the transmission rod 300 to move to drive the rhythm support frame 200 to move relative to the fixed base frame 100, it is time-saving and labor-saving, which is beneficial to reducing the output power of the driving mechanism 400.

[0041] It can be understood that, with reference to Figures 1 to 3 , in the embodiment of the present utility model, the rhythm support frame 200 is rotatably connected to one end of the transmission rod 300, and the output end of the driving mechanism 400 is rotatably connected to the second end 320 of the transmission rod 300. Through the above settings, through the rotational connection between the rhythm support frame 200 and the first end 310 of the transmission rod 300, and the rotational connection between the driving mechanism 400 and the second end 320 of the transmission rod 300, the power and motion can be effectively transmitted, the transmission efficiency can be improved, and the transmission stability and reliability can be ensured. In addition, the output ends of the above-mentioned rhythm support frame 200, transmission rod 300 and driving mechanism 400 can rotate relative to each other to establish a transmission relationship, which can effectively reduce the transmission stress between components, reduce the friction and wear between components, and extend the service life.

[0042] Of course, in some embodiments, the above-mentioned rhythm support frame 200 can also be fixedly connected to the first end 310 of the transmission rod 300, and the output end of the driving mechanism 400 is fixedly connected to the second end 320 of the transmission rod 300, which is not limited herein.

[0043] It can be understood that, with reference to Figures 1 to 3, in the embodiment of the present utility model, the rhythm bracket 200 is rotatably connected to the first end 310 of the transmission rod 300 through the first connection assembly. The first connection assembly includes: a connection seat 510, which is fixedly connected to the rhythm bracket 200; a first connection member 520, one end of the first connection member 520 is provided with a first connection portion 521, and the other end of the first connection member 520 is provided with a second connection portion 522. The first connection portion 521 is rotatably inserted into the connection seat 510, and the second connection portion 522 is rotatably inserted into the first end 310 of the transmission rod 300; wherein, a first bearing 530 sleeved on the first connection portion 521 is provided between the first connection portion 521 and the connection seat 510, and a second bearing 540 sleeved on the second connection portion 522 is provided between the second connection portion 522 and the first end 310 of the transmission rod 300.

[0044] With the above arrangement, through the design of the first connection assembly, the connection between the rhythm bracket 200 and the transmission rod 300 is more stable and reliable, which can effectively transmit power and motion to ensure the transmission stability; the design of the rotational insertion of the first connection portion 521 and the second connection portion 522 makes the connection between the rhythm bracket 200 and the transmission rod 300 more flexible, which is helpful for motion control and adjustment. The settings of the first bearing and the second bearing 540 can reduce the friction between the connection components, reduce energy loss, and improve the transmission efficiency; due to the insertion setting of the first connection member 520, it will also be more convenient for maintenance and replacement, reducing the maintenance cost and time.

[0045] It can be understood that, referring to Figures 1 to 3 , in the embodiment of the present utility model, the output end of the driving mechanism 400 is rotatably connected to the second end 320 of the transmission rod 300 through the second connection assembly. The second connection assembly includes: a second connection member 610, one end of the second connection member 610 is provided with a third connection portion 611, and the other two ends of the second connection member 610 are provided with a fourth connection portion 612. The third connection portion 611 is rotatably inserted into the output end of the driving mechanism 400, and the fourth connection portion 612 is rotatably inserted into the second end 320 of the transmission rod 300; a third bearing 620, which is provided between the third connection portion 611 and the output end of the driving mechanism 400 and is sleeved on the third connection portion 611; a fourth bearing 630, which is provided between the fourth connection portion 612 and the second end 320 of the transmission rod 300 and is sleeved on the fourth connection portion 612.

[0046] With the above settings, through the design of the first connection component, the connection between the output end of the driving mechanism 400 and the transmission rod 300 is more stable and reliable, which can effectively transmit power and motion, ensuring transmission stability; the rotational insertion design of the third connection part 611 and the fourth connection part 612 makes the connection between the output end of the driving mechanism 400 and the transmission rod 300 more flexible, contributing to motion control and adjustment. The settings of the third bearing 620 and the fourth bearing 630 can reduce the friction between connection components, reduce energy loss, and improve transmission efficiency; due to the insertion setting of the second connecting piece 610, it will also be more convenient for maintenance and replacement, reducing maintenance costs and time.

[0047] Specifically, referring to Figures 1 to 3 , in the embodiment of the present utility model, the fixed chassis 100 is provided with a mounting seat 110, the mounting seat 110 is provided with a mounting post 111, the mounting post 111 is rotatably inserted into the transmission rod 300 and the two are relatively rotatable, and a mounting bearing 112 sleeving the mounting post 111 is provided between the transmission rod 300 and the mounting post 111. With the above structure, through the design of the mounting seat 110 and the mounting post 111, the transmission rod 300 is stably supported, which helps to maintain the stability of the rotational movement of the transmission rod 300; the setting of the mounting bearing 112 can reduce the friction between the mounting post 111 and the transmission rod 300, reduce energy loss, and improve transmission efficiency, making the installation of the transmission rod 300 relatively simple, and at the same time facilitating maintenance and replacement.

[0048] It can be understood that, in the embodiment of the present utility model, the driving mechanism 400 includes: a magnetic power driving component 410, the magnetic power driving component 410 includes a coil unit 411 and a magnetic core unit 412, the coil unit 411 is arranged on the fixed chassis 100, the magnetic core unit 412 is movably inserted through the coil unit 411, and magnetic power is generated between the coil unit 411 and the magnetic core unit 412 through magnetic field changes, so that the magnetic core unit 412 reciprocates relative to the coil unit 411; a driving plate 420, one end of the driving plate 420 is connected to the end of the magnetic core unit 412, and the opposite end of the driving plate 420 is drivingly connected to the second end 320 of the transmission rod 300.

[0049] With the above structure, the magnetic power generated by magnetic field changes drives the magnetic core unit 412 to reciprocate back and forth, providing power for the transmission rod 300 to achieve effective transmission; the magnetic power driving method can achieve precise control of the movement of the magnetic core unit 412, contributing to the motion accuracy and stability of the system; magnetic power driving is generally more energy-efficient than traditional mechanical transmission methods, and at the same time reduces friction and wear, being more environmentally friendly; by using the design of the magnetic power driving component 410 and the driving plate 420, a compact layout of the driving mechanism 400 can be achieved, saving space; by controlling the magnetic field changes, the magnitude of the magnetic power can be adjusted to achieve the adjustment and control of the movement of the transmission rod 300.

[0050] Of course, in some embodiments, the above-mentioned driving mechanism 400 may also be an electric push rod mechanism. The telescopic push rod of the electric push rod drives the driving plate 420 to move back and forth, so as to drive the transmission rod 300 to rotate through the back-and-forth movement of the driving plate 420. This can also help reduce the output power of the electric push rod mechanism, and is not limited herein.

[0051] Specifically, referring to Figures 1 to 3 , in the embodiment of the present utility model, there are two sets of transmission rods 300. The two sets of transmission rods 300 are arranged oppositely and are respectively located on opposite sides of the coil unit 411; there are two driving plates 420. The two driving plates 420 are arranged oppositely and are respectively located on opposite sides of the coil unit 411. The two driving plates 420 are respectively connected to opposite ends of the magnetic core unit 412. With the above structure, through the opposite arrangement of the two sets of transmission rods 300 and the two driving plates 420, the force of the driving mechanism 400 can be balanced, which helps to maintain the stability of the transmission; by arranging the two sets of transmission rods 300 and the two driving plates 420 on opposite sides of the coil unit 411 respectively, the force can be evenly distributed, reducing the risk of vibration and swing; by connecting the two driving plates 420 to the two ends of the magnetic core unit 412 respectively, the power can be transmitted more effectively, thereby improving the operation efficiency; a more flexible control method can be provided, which helps to achieve precise adjustment and control of the movement.

[0052] Of course, in some embodiments, the above-mentioned transmission rod 300 may also be one, and the driving plate 420 may also be one. Or in some other embodiments, each set of driving mechanisms 400 is correspondingly arranged with one transmission rod 300, or other embodiments, which are not limited herein.

[0053] It should be noted that, referring to Figures 1 to 3 , in the embodiment of the present utility model, the above-mentioned driving plate 420 is detachably connected to the end of the magnetic attraction unit. The detachable connection allows for quick maintenance and replacement of the connecting components between the driving plate 420 and the magnetic core unit 412, reducing the maintenance time and cost, bringing the effects of high possibility of adjustment and optimization, easy transportation, high flexibility and reliability.

[0054] Specifically, in this embodiment, the above-mentioned magnetic core unit 412 includes a moving rod and two magnetic core components sleeved on the outer wall of the moving rod at intervals. The driving plate 420 is sleeved on the moving rod and is screwed to the moving rod through two nuts. Part of the structure of the driving plate 420 is located between the two nuts and abuts against them, realizing the fixation of the relative position in the front and back directions between the driving plate 420 and the moving rod. The structure is simple and convenient for disassembly.

[0055] Specifically, in this embodiment, the above-mentioned drive board 420 includes a first board body 421 and a second board body 422 connected to the first board body 421. The first board body 421 and the second board body 422 can be integrally formed, or can be fixed together by screwing or clamping. There is an included angle between the first board body 421 and the second board body 422. The first board body 421 is connected to the moving rod, and one end of the second board body 422 far from the first board body 421 is connected to the second end 320 of the transmission rod 300. In this embodiment, the included angle is 90 degrees. Of course, it is not limited to 90 degrees, and can also be 30 degrees, 60 degrees, etc., or more than 90 degrees, etc. When the drive-saving law motion frame is in the initial position, that is, static, the first board body 421 is parallel to the connecting line of the rotation center O, the first end 310 and the second end 320 of the transmission rod 300. The second board body 422 is perpendicular to the first board body 421, and similarly, the second board body 422 is perpendicular to the above-mentioned connecting line of the transmission rod 300. With the above structure, the space can be further reasonably utilized to facilitate reducing the overall volume of the drive-saving law motion frame and facilitating the drive mechanism 400 to drive the transmission rod 300 to move.

[0056] It should also be noted that, in the embodiment of the present utility model, the drive mechanism 400 further includes a protective cover 430, and the protective cover 430 covers the magnetic force drive assembly 410, playing a role of protection and dust prevention.

[0057] It can be understood that, referring to Figure 1 , in the embodiment of the present utility model, a guiding mechanism 700 for connecting the fixed chassis 100 and the rhythm bracket 200 and guiding their relative movement is provided between the fixed chassis 100 and the rhythm bracket 200 to improve the stability during reciprocating movement.

[0058] Specifically, referring to Figure 1 , in the embodiment of the present utility model, the guiding mechanism 700 includes a first guiding seat, a second guiding seat and a plurality of spheres. The first guiding seat is connected to the fixed chassis 100, the second guiding seat is connected to the rhythm bracket 200, the first guiding seat and the second guiding seat are slidably connected, and a receiving groove is formed between the two. The plurality of spheres are installed in the receiving groove. With the above structure, when the rhythm bracket 200 reciprocates back and forth relative to the fixed chassis 100, the guiding is realized by the relative sliding of the first guiding seat and the second guiding seat, and the spheres are provided, which is beneficial to the sliding resistance of the rhythm bracket 200 relative to the fixed chassis 100, stable and reliable, and the movement is smooth.

[0059] It should be noted that, referring to Figure 1 , in this embodiment, the above-mentioned guiding mechanism 700 is provided with four groups, and the four groups of guiding mechanisms 700 are spaced apart and distributed at the bottoms of the fixed chassis 100 and the rhythm bracket 200 to provide the stability of reciprocating back and forth movement. Of course, in some embodiments, the above-mentioned guiding mechanism 700 can also be one group, two groups, etc., which are not limited herein.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A driving force-saving law exercise machine frame, characterized in that, Comprising: A fixed chassis (100); A rhythm bracket (200), which is movably arranged on the fixed chassis (100) in the front - rear direction; A transmission rod (300), which is rotatably connected to the fixed chassis (100). The transmission rod (300) has a first end (310) and a second end (320), and the first end (310) of the transmission rod (300) is in transmission connection with the rhythm bracket (200); A driving mechanism (400), which is arranged on the fixed chassis (100). The output end of the driving mechanism (400) is in transmission connection with the second end (320) of the transmission rod (300) to drive the transmission rod (300) to rotate and drive the rhythm bracket (200) to reciprocate relative to the fixed chassis (100); Wherein, the distance from the first end (310) of the transmission rod (300) to its rotation center (O) is the resistance arm (L1), and the distance from the second end (320) of the transmission rod (300) to its rotation center (O) is the power arm (L2), and the length of the power arm (L2) is greater than the length of the resistance arm (L1).

2. The drive-saving law motive frame according to claim 1, characterized in that, The rhythm bracket (200) is rotatably connected to one end of the transmission rod (300), and the output end of the driving mechanism (400) is rotatably connected to the second end (320) of the transmission rod (300).

3. The drive-saving law driving machine frame according to claim 2, characterized in that, The rhythm bracket (200) is rotatably connected to the first end (310) of the transmission rod (300) through a first connection assembly. The first connection assembly includes: A connection seat (510), which is fixedly connected to the rhythm bracket (200); A first connecting piece (520). One end of the first connecting piece (520) is provided with a first connecting portion (521), and the other end of the first connecting piece (520) is provided with a second connecting portion (522). The first connecting portion (521) is rotatably inserted into the connection seat (510), and the second connecting portion (522) is rotatably inserted into the first end (310) of the transmission rod (300); Wherein, a first bearing (530) sleeving the first connecting portion (521) is arranged between the first connecting portion (521) and the connection seat (510), and a second bearing (540) sleeving the second connecting portion (522) is arranged between the second connecting portion (522) and the first end (310) of the transmission rod (300).

4. The drive force-saving law engine frame according to claim 2, characterized in that, The output end of the driving mechanism (400) is rotatably connected to the second end (320) of the transmission rod (300) through a second connection assembly. The second connection assembly includes: A second connecting member (610), one end of the second connecting member (610) is provided with a third connecting portion (611), the other two ends of the second connecting member (610) are provided with fourth connecting portions (612), the third connecting portion (611) is rotatably inserted into the output end of the driving mechanism (400), and the fourth connecting portion (612) is rotatably inserted into the second end (320) of the transmission rod (300); A third bearing (620), the third bearing (620) is arranged between the third connecting portion (611) and the output end of the driving mechanism (400), and is sleeved outside the third connecting portion (611); A fourth bearing (630), the fourth bearing (630) is arranged between the fourth connecting portion (612) and the second end (320) of the transmission rod (300), and is sleeved outside the fourth connecting portion (612).

5. The drive-saving law dynamo frame according to any one of claims 1 to 4, characterized in that, The fixed chassis (100) is provided with a mounting seat (110), the mounting seat (110) is provided with a mounting column (111), the mounting column (111) is rotatably inserted into the transmission rod (300) and the two can rotate relative to each other, and a mounting bearing (112) sleeved outside the mounting column (111) is arranged between the transmission rod (300) and the mounting column (111).

6. The drive-saving law dynamometer frame according to claim 5, characterized in that, The driving mechanism (400) includes: A magnetic power driving component (410), the magnetic power driving component (410) includes a coil unit (411) and a magnetic core unit (412), the coil unit (411) is arranged on the fixed chassis (100), the magnetic core unit (412) is movably inserted through the coil unit (411), and a magnetic power is generated between the coil unit (411) and the magnetic core unit (412) through magnetic field change, so that the magnetic core unit (412) reciprocates relative to the coil unit (411); A driving plate (420), one end of the driving plate (420) is connected to the end of the magnetic core unit (412), and the opposite end of the driving plate (420) is drivingly connected to the second end (320) of the transmission rod (300).

7. The driving force-saving law engine frame according to claim 6, characterized in that, There are two groups of the transmission rods (300), the two groups of the transmission rods (300) are arranged facing each other and are respectively located on opposite sides of the coil unit (411); There are two driving plates (420), the two driving plates (420) are arranged facing each other and are respectively located on opposite sides of the coil unit (411), and the two driving plates (420) are respectively connected to opposite ends of the magnetic core unit (412).

8. The drive-saving law engine frame according to claim 7, characterized in that, The driving plate (420) is detachably connected to the end of the magnetic core unit (412).

9. The drive force-saving law engine frame according to claim 1, characterized in that, A guiding mechanism (700) for connecting the fixed chassis (100) and the rhythm bracket (200) and guiding their relative movement is arranged between the fixed chassis (100) and the rhythm bracket (200).

10. A rhythm furniture, characterized in that, Including the driving and labor-saving rhythm machine frame according to any one of claims 1 to 9.

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