Seat and rhythm furniture

Abstract

The utility model provides a seat and rhythm furniture, the seat comprises a seat main body, a first driving mechanism and a first connecting mechanism, the seat main body comprises two parallel side supporting parts, each supporting part comprises a first end and a second end which are opposite to each other, and the first end is rotatably connected with a base; the first connecting mechanism comprises two first connecting rods, the two first connecting rods and the two side supporting parts are correspondingly arranged, each first connecting rod comprises a third end and a fourth end which are opposite, each third end is connected with the output shaft, the relative position of each third end is kept unchanged, and each first connecting rod can be driven by the output shaft to do integrated rotary motion; each fourth end is rotatably connected with the second end, and the axis of the rotating shaft between the fourth end and the second end is staggered and parallel to the axis of the output shaft. The two first connecting rods are respectively connected with the chair main body and the base, and the number of stress supporting points of the chair main body is two, so that the chair main body is more stably supported by the base.

Description

Technical Field

[0001] This application relates to the technical field of seats, and in particular to a zero-gravity seat with adjustable inclination angle. Background Art

[0002] In the related art, a zero-gravity seat can make the sitting posture of the seat user close to the neutral posture of the human body, making the user more comfortable. The zero-gravity seats in the related art generally adjust the inclination angle of the seat to make the sitting posture of the user closer to the neutral posture. However, in the related art, the adjustment device for adjusting the inclination angle of the seat has low stability, and the seat cannot adapt to the complex movement environment. Summary of the Utility Model

[0003] The embodiments of this application provide a seat and a rhythmic furniture to at least solve the technical problem of low support stability in the existing seats with adjustable inclination angle.

[0004] The first aspect embodiment of this application provides a seat, including:

[0005] A base;

[0006] A chair body, the chair body includes two parallel side support parts, each support part includes opposite first and second ends, and the first end is rotatably connected to the base;

[0007] A first driving mechanism, the first driving mechanism is connected to the base and is set to keep the relative position unchanged, and the first driving mechanism includes an output shaft capable of rotational movement;

[0008] A first connection mechanism, including two first connecting rods, the two first connecting rods are arranged corresponding to the two side support parts, each first connecting rod includes opposite third and fourth ends, each third end is connected to the output shaft and is set to keep the relative position unchanged, each first connecting rod can be driven by the output shaft to make an integral rotational movement, each fourth end is rotatably connected to the second end, and the axis of the rotating shaft between the fourth end and the second end intersects and is parallel to the axis of the output shaft.

[0009] The seat according to the embodiment of this application has at least the following beneficial effects:

[0010] In the seat of the embodiment of this application, the two first connecting rods are respectively connected to the chair body and the base, and the force support points of the chair body are two, so that the support of the base for the chair body is more stable, and it is also beneficial for the seat to adapt to the use environment of unstable movement.

[0011] In a possible implementation manner, the first connection mechanism further includes two second connecting rods. Both of the two second connecting rods include opposite fifth ends and sixth ends. The fifth end is connected to the second end of the chair frame and the relative position remains unchanged. The sixth ends of the two second connecting rods are respectively rotatably connected to the fourth ends of the two first connecting rods. By providing the second connecting rods with an unchanged relative position to the chair body, the length and direction of the second connecting rods can be adjusted as needed, so that the seat can adapt to more usage scenarios.

[0012] In a possible implementation manner, the first driving mechanism further includes a motor, and the motor is located between the two first connecting rods. First, it can reduce the space occupied by the first connection mechanism and the first driving mechanism, making the seat smaller in volume. Second, when the motor drives the output shaft to perform a rotational motion, it is more stable.

[0013] In a possible implementation manner, the connection mode between the motor and the output shaft is a worm and worm gear connection. By setting the connection mode between the motor and the output shaft as a worm and worm gear connection, the output shaft of the motor has a self-locking function, avoiding the chair body from falling back in the state of the motor being shut down, thus affecting the user experience.

[0014] In a possible implementation manner, a first hole is provided at the fourth end of the first connecting rod, and a second hole is correspondingly provided at the sixth end of the second connecting rod. The first connection mechanism further includes a connecting piece, and the connecting piece passes through the first hole and the second hole. By adopting the connection mode of the hole and the connecting piece, the connection mode of the seat is simpler, reducing the occurrence of faults during operation.

[0015] In a possible implementation manner, the first connection mechanism further includes a first sound insulation pad, and the first sound insulation pad is arranged between the first connecting rod and the second connecting rod. The first connecting rod and the second connecting rod are rotatably connected. If the working environment of the seat has more unstable movements, such as reciprocating rhythms back and forth, it will cause friction between the first connecting rod and the second connecting rod to generate noise, thus affecting the user experience. In a general automotive environment, the seat is in a relatively stable movement environment and is not likely to generate noise. By providing the first sound insulation pad, the noise generated by the friction between the second connecting rod and the first connecting rod can be effectively reduced.

[0016] In a possible implementation manner, the first sound insulation pad is provided with a third hole, and the connecting piece passes through the third hole. By arranging the first sound insulation pad between the first connecting rod and the second connecting rod in an open-hole manner, the first sound insulation pad is located between the first connecting rod and the second connecting rod, making the fixed state between the two more stable, and at the same time making the overall structure simpler.

[0017] In a possible implementation, the first sound insulation pad includes a first protruding portion, the third hole is provided in the first protruding portion, and the first protruding portion extends into the second hole. The first protruding portion extending into the second hole enables the first connecting rod and the second connecting rod not to come into direct contact, but rather the contact between the first connecting rod and the first sound insulation pad is used instead, thereby reducing the noise generated by the friction between the first connecting rod and the second connecting rod.

[0018] In a possible implementation, the first connecting mechanism further includes a second sound insulation pad, the second sound insulation pad is provided with a fourth hole, the connecting member passes through the fourth hole, the second connecting rod is disposed between the first sound insulation pad and the second sound insulation pad, the second sound insulation pad includes a second protruding portion, the fourth hole is provided in the second protruding portion, the second protruding portion extends into the second hole, the connecting member is a bolt, the bolt includes a screw rod and a head, the head extends radially outward from the screw rod, the screw rod is screwed with the first hole, the second connecting rod is located between the head of the bolt and the first connecting rod, the bolt passes through the first hole, the second hole, the third hole and the fourth hole, and the head of the bolt abuts against the second sound insulation pad. The connection structure of the bolt is simple, and the provision of the second sound insulation pad helps to reduce the noise generated by the friction between the head of the bolt and the second connecting rod.

[0019] In a possible implementation, a gap is formed between the first protruding portion and the second protruding portion in the second hole. The reserved gap is used to accommodate lubricating oil, reduce the friction between the bolt and the first sound insulation pad and the second sound insulation pad, and make the movement between the second connecting rod and the first connecting rod smoother.

[0020] In a possible implementation, the first sound insulation pad and the second sound insulation pad are made of engineering plastic parts. By using engineering plastic parts, the noise generated during the operation of the seat can be reduced.

[0021] An embodiment of the second aspect of the present application provides a rhythm furniture, including the seat provided in any of the foregoing embodiments, further including a chassis, a second connecting mechanism and a second driving mechanism. The chassis supports the seat, the second connecting mechanism is respectively connected to the chassis and the base, and the power output end of the second driving mechanism is in transmission connection with the base. The second driving mechanism drives the base to reciprocate back and forth relative to the chassis so that the seat reciprocates back and forth relative to the chassis.

[0022] The rhythm furniture according to the embodiment of the present application has at least the following beneficial effects:

[0023] By providing the first connecting mechanism and the first driving mechanism with two force-bearing support points, the seat has better stability in an unstable environment of reciprocating back and forth. Description of the Drawings

[0024] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 It is a schematic structural diagram of a rhythmic furniture including a base provided by an embodiment of the present application;

[0026] Figure 2 It is an exploded view of a rhythmic furniture including a base provided by an embodiment of the present application;

[0027] Figure 3 It is an exploded view of a base provided by an embodiment of the present application;

[0028] Figure 4 It is an exploded view of the first connecting rod and the second connecting rod of a base provided by an embodiment of the present application;

[0029] Figure 5 It is a cross-sectional view of the first connecting rod, the second connecting rod, the first sound insulation pad, the second sound insulation pad and the connecting member of a base provided by an embodiment of the present application;

[0030] Figure 6 It is a cross-sectional schematic view of the first sound insulation pad of a seat provided by an embodiment of the present application;

[0031] Figure 7 It is a cross-sectional schematic view of the second sound insulation pad of a seat provided by an embodiment of the present application.

[0032] Reference numerals:

[0033] 110 - base, 120 - chair body, 121 - side support part, 1211 - first end, 1212 - second end, 130 - first driving mechanism, 131 - output shaft, 132 - motor, 140 - first connecting mechanism, 141 - first connecting rod, 1411 - third end, 1412 - fourth end, 1413 - rotating shaft, 1414 - first hole, 142 - second connecting rod, 1421 - fifth end, 1422 - sixth end, 1423 - second hole, 1424 - gap, 143 - connecting member, 1431 - screw rod, 1432 - head, 144 - first sound insulation pad, 1441 - third hole, 1442 - first protrusion, 145 - second sound insulation pad, 1451 - fourth hole, 1452 - second protrusion;

[0034] 210 - chassis, 220 - second connecting mechanism, 230 - second driving mechanism. Detailed implementation mode

[0035] The embodiments of the present implementation mode will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present implementation mode, and should not be construed as a limitation of the present implementation mode.

[0036] In the description of the present implementation mode, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present implementation mode and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present implementation mode.

[0037] In the description of the present implementation mode, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, exceeding, etc. are understood as not including the present number, above, below, within, etc. are understood as including the present number. If the first and second are described only for the purpose of distinguishing technical features, they should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0038] In the description of the present implementation mode, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present implementation mode in combination with the specific content of the technical solution.

[0039] The following will be combined with Figures 1 to 7 Describe the seat of the embodiment of the present application in detail.

[0040] In related seat technologies, especially in zero-gravity seats, the zero-gravity seat adjusts the inclination angle of the seat to make the human body posture close to the neutral posture, so as to achieve the purpose of making the human body relaxed and comfortable. In related technologies, the inclination angle of the seat is adjusted through an adjustment mechanism. The inclination angle refers to the angle between the load-bearing surface of the seat main body 120 for receiving the human body and the horizontal direction, and it also plays a role in supporting the seat after adjustment. The usage scenarios of zero-gravity seats in related technologies are generally used in a stable motion state, and the structural stability of the support of the adjustment mechanism does not need to be concerned during design. Therefore, when the seat is in an unstable motion state, its adjustment mechanism is not sufficient to stably support the seat.

[0041] Such as Figure 1 And Figure 2As shown in the figure, the seat provided by the embodiment of the present application includes a base 110, a chair body 120, a first driving mechanism 130, and a first connecting mechanism 140. The chair body 120 includes two parallel side support portions 121. Each support portion includes a first end 1211 and a second end 1212 that are opposite to each other. The first end 1211 is rotatably connected to the base 110; the first driving mechanism 130 is connected to the base 110 and is arranged to keep the relative position unchanged. The first driving mechanism 130 includes an output shaft 131 capable of performing a rotational motion; the first connecting mechanism 140 includes two first connecting rods 141. The two first connecting rods 141 are arranged corresponding to the two side support portions 121. Each first connecting rod 141 includes a third end 1411 and a fourth end 1412 that are opposite to each other. Each third end 1411 is connected to the output shaft 131 and is arranged to keep the relative position unchanged. Each first connecting rod 141 can be driven by the output shaft 131 to perform an integral rotational motion. Each fourth end 1412 is rotatably connected to the second end 1212, and the axis of the rotating shaft 1413 between the fourth end 1412 and the second end 1212 is staggeredly parallel to the axis of the output shaft 131. In the present application, by connecting the two first connecting rods 141 to the chair body 120 and the base 110 respectively, there are two force-bearing support points for the chair body 120, so that the support of the base 110 for the chair body 120 is more stable, and it is also beneficial for the seat to adapt to the use environment of unstable motion. For example, the seat is installed on a rhythm base 110 that reciprocates back and forth.

[0042] It can be understood that the output shaft 131 of the first driving mechanism 130 outputs a rotational motion, and the relative position between the third end 1411 of the first connecting rod 141 and the output shaft 131 remains unchanged, so that the two first connecting rods 141 rotate around the output shaft 131. Since the fourth end 1412 of the first connecting rod 141 is opposite to the third end 1411, the third end 1411 of the first connecting rod 141 is connected to the output shaft 131 and is the proximal end, and the fourth end 1412 of the first connecting rod 141 is the distal end. When the output shaft 131 rotates, the fourth end 1412 also rotates. Since the position of the output shaft 131 does not change in the horizontal and vertical directions, and the fourth end 1412 rotates around the output shaft 131, the fourth end 1412 moves vertically, thereby driving the second end 1212 of the chair body 120 to move vertically. Moreover, the first end 1211 of the chair body 120 is rotatably connected to the base 110, so that the inclination angle of the chair body 120 can be changed, and the chair body 120 can be adjusted to a neutral posture suitable for the human body, that is, the zero-gravity state.

[0043] It can be understood that the chair body 120 includes opposite first end 1211 and second end 1212, which refer to two parts of the chair body 120 with different height changes when adjusting the inclination angle of the chair body 120. In this embodiment, the height change of the first end 1211 is less than that of the second end 1212. Therefore, the change in the height of the second end 1212 causes a change in the inclination angle of the chair body 120, so that the posture of the passenger sitting on the chair body 120 changes to approach the zero-gravity state.

[0044] It can be understood that the first end 1211 of the chair body 120 is rotatably connected to the base 110, including the relative position of the first end 1211 of the chair body 120 and the base 110 remaining unchanged and generating relative movement, as long as the first end 1211 of the chair body 120 is relatively rotatable with respect to the base 110.

[0045] It can be understood that staggered parallel means that the axes of the output shaft 131 and the rotating shaft 1413 are not collinear, to prevent the second end 1212 of the chair body 120 from having a vertical displacement when the output shaft 131 rotates, resulting in the inability to adjust the inclination angle of the chair body 120.

[0046] In some embodiments, such as Figure 3 and Figure 4 As shown, the first connection mechanism 140 further includes two second connecting rods 142. Both of the two second connecting rods 142 include opposite fifth ends 1421 and sixth ends 1422. The fifth end 1421 is connected to the second end 1212 of the chair frame and the relative position remains unchanged. The sixth ends 1422 of the two second connecting rods 142 are respectively rotatably connected to the fourth ends 1412 of the two first connecting rods 141. By providing the second connecting rods 142 with an unchanged relative position to the chair body 120, the length and direction of the second connecting rods 142 can be adjusted as needed, so that the seat can be adapted to more usage scenarios.

[0047] It can be understood that the second connecting rod 142 can be integrally connected to the chair body 120 or can be a detachable connection, such as a bolt connection, which greatly improves the flexibility of the seat design.

[0048] In some embodiments, the first driving mechanism 130 further includes a motor 132, and the motor 132 is located between the two first connecting rods 141. First, it can reduce the space occupied by the first connection mechanism 140 and the first driving mechanism 130, making the seat smaller in volume. Second, when the motor 132 drives the output shaft 131 to make a rotational motion, it is more stable.

[0049] In some embodiments, the connection between the motor 132 and the output shaft 131 is a worm and worm gear connection. By setting the connection between the motor 132 and the output shaft 131 as a worm and worm gear connection, the output shaft 131 has a self-locking function, which can prevent the chair body 120 from falling back when the motor 132 stops, thus affecting the user experience.

[0050] In some embodiments, as Figure 4 shown, a first hole 1414 is provided at the fourth end 1412 of the first connecting rod 141, and a second hole 1423 is correspondingly provided at the sixth end 1422 of the second connecting rod 142. The first connecting mechanism 140 further includes a connecting member 143, and the connecting member 143 passes through the first hole 1414 and the second hole 1423. By adopting the connection method of the hole and the connecting member 143, the connection method of the seat is simpler, and the occurrence of faults during operation is reduced.

[0051] In some embodiments, as Figure 4 and Figure 5 shown, the first connecting mechanism 140 further includes a first sound insulation pad 144, and the first sound insulation pad 144 is arranged between the first connecting rod 141 and the second connecting rod 142. The first connecting rod 141 and the second connecting rod 142 are rotatably connected. If the working environment of the seat has a lot of unstable movements, such as reciprocating rhythms back and forth, it will cause friction between the first connecting rod 141 and the second connecting rod 142 to generate noise, thus affecting the user experience. In a general automotive environment, the seat is in a relatively stable movement environment and is not likely to generate noise. By setting the first sound insulation pad 144, the noise generated by the friction between the second connecting rod 142 and the first connecting rod 141 can be effectively reduced.

[0052] In some embodiments, as Figure 5 and Figure 6 shown, the first sound insulation pad 144 is provided with a third hole 1441, and the connecting member 143 passes through the third hole 1441. By arranging the first sound insulation pad 144 between the first connecting rod 141 and the second connecting rod 142 in an open-hole manner, the first sound insulation pad 144 is between the first connecting rod 141 and the second connecting rod 142, making the fixed state between the two more stable and the overall structure simpler.

[0053] In some embodiments, as Figure 6As shown, the first sound insulation pad 144 includes a first protrusion 1442. A third hole 1441 is provided in the first protrusion 1442, and the first protrusion 1442 extends into the second hole 1423. The first protrusion 1442 extending into the second hole 1423 enables the first connecting rod 141 and the second connecting rod 142 not to come into direct contact, but to be replaced by the contact between the first connecting rod 141 and the first sound insulation pad 144, thereby reducing the noise generated by the friction between the first connecting rod 141 and the second connecting rod 142.

[0054] In some embodiments, please refer to Figure 5 、 Figure 6 and Figure 7 ,the first connecting mechanism 140 further includes a second sound insulation pad 145. The second sound insulation pad 145 is provided with a fourth hole 1451. A connecting member 143 passes through the fourth hole 1451. The second connecting rod 142 is disposed between the first sound insulation pad 144 and the second sound insulation pad 145. The second sound insulation pad 145 includes a second protrusion 1452. The fourth hole 1451 is provided in the second protrusion 1452. The second protrusion 1452 extends into the second hole 1423. The connecting member 143 is a bolt, and the bolt includes a screw rod 1431 and a head 1432. The head 1432 extends radially outward from the screw rod 1431. The screw rod 1431 is screwed to the first hole 1414. The second connecting rod 142 is located between the head 1432 of the bolt and the first connecting rod 141. The bolt passes through the first hole 1414, the second hole 1423, the third hole 1441 and the fourth hole 1451, and the head 1432 of the bolt abuts against the second sound insulation pad 145. The connection structure of the bolt is simple, and the provision of the second sound insulation pad 145 helps to reduce the noise generated by the friction between the head 1432 of the bolt and the second connecting rod 142.

[0055] In some embodiments, as Figure 5 shown, in the second hole 1423, a gap 1424 is formed between the first protrusion 1442 and the second protrusion 1452. The reserved gap 1424 is used to accommodate lubricating oil, reduce the friction between the bolt and the first sound insulation pad 144 and the second sound insulation pad 145, and make the movement between the second connecting rod 142 and the first connecting rod 141 smoother.

[0056] In some embodiments, the first sound insulation pad 144 and the second sound insulation pad 145 are made of engineering plastic parts. The engineering plastic can be made of polyamide, polycarbonate, polyoxymethylene, modified polyphenylene ether, thermoplastic polyester, polyimide, polyphenylene sulfide, polysulfone, aromatic polyamide, polyarylate, polyphenylene ester, polyaryletherketone, liquid crystal polymer, fluororesin, etc. By using engineering plastic parts, the noise generated during the operation of the seat can be reduced.

[0057] An embodiment of the present application further provides a rhythm furniture, which includes the seat in the above embodiment, and further includes a chassis 210, a second connection mechanism 220 and a second driving mechanism 230. The chassis 210 supports the seat. The second connection mechanism 220 is respectively connected to the chassis 210 and the base 110. The power output end of the second driving mechanism 230 is in transmission connection with the base 110. The second driving mechanism 230 drives the base 110 to reciprocate back and forth relative to the chassis 210 so that the seat reciprocates back and forth relative to the chassis 210.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this implementation. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0059] Although the embodiments of this implementation have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of this implementation. The scope of this implementation is defined by the claims and their equivalents.

Claims

1. A seat, characterized in that, Comprising: A base; A chair body, the chair body including two parallel side support portions, each support portion including opposite first and second ends, the first end being rotatably connected to the base; A first driving mechanism, the first driving mechanism being connected to the base and arranged to maintain a constant relative position, the first driving mechanism including an output shaft capable of rotational movement; A first connecting mechanism, including two first connecting rods, the two first connecting rods being correspondingly arranged with the two side support portions, each first connecting rod including opposite third and fourth ends, each third end being connected to the output shaft and arranged to maintain a constant relative position, each first connecting rod being capable of being driven by the output shaft to perform an integral rotational movement, each fourth end being rotatably connected to the second end, and the axis of the rotation shaft between the fourth end and the second end being staggeredly parallel to the axis of the output shaft.

2. The seat according to claim 1, characterized in that, The first connecting mechanism further includes two second connecting rods, the two second connecting rods each including opposite fifth and sixth ends, the fifth end being connected to the second end of the chair frame and maintaining a constant relative position, and the sixth ends of the two second connecting rods being respectively rotatably connected to the fourth ends of the two first connecting rods.

3. The seat according to claim 1 or 2, characterized in that, The first driving mechanism further includes a motor, the motor being located between the two first connecting rods.

4. The seat according to claim 3, characterized in that, The connection mode between the motor and the output shaft is a worm and worm gear connection.

5. The seat according to claim 2, characterized in that, The fourth end of the first connecting rod is provided with a first hole, the sixth end of the second connecting rod is correspondingly provided with a second hole, the first connecting mechanism further includes a connecting piece, the connecting piece passing through the first hole and the second hole.

6. The seat according to claim 5, characterized in that, The first connecting mechanism further includes a first sound insulation pad, the first sound insulation pad being arranged between the first connecting rod and the second connecting rod.

7. The seat according to claim 6, characterized in that, The first sound insulation pad is provided with a third hole, the connecting piece passing through the third hole.

8. The seat according to claim 7, characterized in that, The first sound insulation pad includes a first protruding portion, the third hole being arranged in the first protruding portion, the first protruding portion extending into the second hole.

9. The seat according to claim 8, characterized in that, The first connecting mechanism further includes a second sound insulation pad, the second sound insulation pad being provided with a fourth hole, the connecting piece passing through the fourth hole, the second connecting rod being arranged between the first sound insulation pad and the second sound insulation pad, the second sound insulation pad including a second protruding portion, the fourth hole being arranged in the second protruding portion, the second protruding portion extending into the second hole, the connecting piece being a bolt, the bolt including a screw rod and a head, the head extending radially outward from the screw rod, the screw rod being screwed to the first hole, the second connecting rod being located between the head of the bolt and the first connecting rod, the bolt passing through the first hole, the second hole, the third hole and the fourth hole, and the head of the bolt abutting against the second sound insulation pad.

10. The seat according to claim 9, characterized in that, In the second hole, a gap is formed between the first protruding portion and the second protruding portion.

11. The seat according to claim 9 or 10, characterized in that, The first sound insulation pad and the second sound insulation pad are made of engineering plastic parts.

12. A rhythm furniture, characterized in that, Comprising a chassis and a seat as described in any one of claims 1-11, the chassis supports the seat, and the rhythmic furniture further includes a second connecting mechanism and a second driving mechanism. The second connecting mechanism is respectively connected to the chassis and the base, the power output end of the second driving mechanism is in transmission connection with the base, and the second driving mechanism drives the base to reciprocate back and forth relative to the chassis so that the seat reciprocates back and forth relative to the chassis.

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