CN219762853U - Position detection device for rocking chair and rocking chair - Google Patents

Abstract

The utility model relates to the technical field of furniture, in particular to a position detection device for a rocking chair and the rocking chair, wherein the position detection device comprises: a fixing member; the movable piece can swing along with the rocking chair to move relative to the fixed piece, and the movable piece is provided with an initial position and a working stop position; the detection structure comprises a detector and a detection piece, one of the detector and the detection piece is connected with the fixed piece, the other of the detector and the detection piece is connected with the movable piece, and the detector is provided with a first detection point and a second detection point; when the movable piece is positioned at the initial position, the first detection point is in inductive fit with the detection piece, and the swing direction of the rocking chair is towards the working stop position; when the movable piece moves from the initial position to the working stop position, the second detection point is in inductive fit with the detection piece, the swing direction of the rocking chair is towards the initial position, the swing stability of the front-back movement of the rocking chair is improved, the action effect of the rocking chair on a user is prevented from being poor, and the user experience is good.

Description

Position detection device for rocking chair and rocking chair

Technical Field

The utility model relates to the technical field of furniture, in particular to a position detection device for a rocking chair and the rocking chair.

Background

Along with the continuous progress of society, people's quality of life is constantly promoted, and rocking chair is the necessary articles for daily use of leisure in people's life, sways through rocking chair back and forth to promote quality of life.

In the prior art, rocking chair includes the chassis, is used for bearing user's seat frame and is used for driving the drive arrangement of seat frame relative chassis motion, realizes swaing through the back-and-forth movement of seat frame relative chassis. However, during use, the rocking chair has the following problems: along with the growth of the service time, the motion stroke of the seat frame can be greatly deviated, so that the limit position of the seat frame relative to the motion of the bottom frame exceeds the original set limit position, or the seat frame does not reach the original set limit position yet to perform the return motion, thereby reducing the swing stability of the back-and-forth motion of the rocking chair, leading to poor effect of the rocking chair on users and poor user experience.

Disclosure of Invention

The utility model provides a position detection device for a rocking chair, which is used for solving the problems of poor effect of the rocking chair on a user and poor user experience caused by the reduction of the stability of back and forth swinging of the rocking chair in the prior art.

The utility model provides a position detection device for a rocking chair, which comprises: a fixing member;

the movable piece is arranged on one side of the fixed piece, can swing along with the rocking chair and moves relative to the fixed piece, and is provided with an initial position and a working stop position;

the detection structure comprises a detector and a detection piece, one of the detector and the detection piece is connected with the fixed piece, the other of the detector and the detection piece is connected with the movable piece, and the detector is provided with a first detection point and a second detection point;

when the movable piece is positioned at the initial position, the first detection point is in inductive fit with the detection piece, and the swing direction of the rocking chair faces to the working stop position; when the movable piece moves from the initial position to the working stop position, the second detection point is in inductive fit with the detection piece, and the swing direction of the rocking chair faces to the initial position.

According to the position detection device for the rocking chair, provided by the utility model, the number of the working stop positions is two, the two working stop positions are respectively positioned at two opposite sides of the initial position, the initial position is taken as a starting point, and the movable piece can reciprocate between the two working positions;

the number of the second detection points is two, and when the movable piece moves to one of the working stop positions, one of the second detection points is in inductive fit with the detection piece; when the movable piece moves to the other working stop position, the other second detection point is in inductive fit with the detection piece.

According to the position detection device for the rocking chair, the moving track of the movable piece relative to the fixed piece is arc-shaped, and the height of the first detection point on the detector is lower than that of the second detection point on the detector.

According to the position detection device for the rocking chair, the detector is a Hall PCB, and the detection piece is a magnetic piece in inductive fit with the Hall PCB;

the Hall PCB is provided with an arc detection area, and the first detection point and the second detection point are uniformly distributed in the arc detection area.

According to the position detection device for the rocking chair, the detector is connected with the fixed piece, and the detection piece is connected with the movable piece;

wherein, the mounting is provided with and is used for the threading through-hole that the detector circuit was worn to establish.

The utility model also provides a rocking chair, comprising: a chassis; the seat frame is used for supporting a user, the seat frame is arranged above the underframe, and the seat frame can swing back and forth relative to the underframe; according to the position detection device for the rocking chair, the fixed piece is connected with the underframe, and the movable piece is connected with the seat frame; and the driving device can drive the seat frame to swing back and forth relative to the underframe, and is electrically connected with the detector.

According to the rocking chair provided by the utility model, the connecting rod assembly for connecting the underframe and the seat frame is arranged between the underframe and the seat frame, and the connecting rod assembly can limit the swinging range of the seat frame swinging back and forth relative to the underframe and enable the movement track of the seat frame to be arc-shaped.

According to the rocking chair provided by the utility model, the connecting rod assembly comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged with the underframe to form a first hinge point, the other end of the first connecting rod is hinged with the seat frame to form a second hinge point, one end of the second connecting rod is hinged with the underframe to form a third hinge point, and the other end of the second connecting rod is hinged with the seat frame to form a fourth hinge point;

and the distance between the first hinge point and the third hinge point is larger than the distance between the second hinge point and the fourth hinge point.

According to the present utility model, there is provided a rocking chair, the driving device comprising:

the first mounting piece is fixedly arranged on the underframe;

the second mounting piece is fixedly arranged on the seat frame;

the magnetic power driving structure comprises a first magnet and a second magnet, wherein the first magnet is connected with the first mounting piece, the second magnet is connected with the second mounting piece, and driving force is generated between the first magnet and the second magnet through magnetic field change so as to enable the first mounting piece and the second mounting piece to move relatively;

wherein at least one of the first magnet and the second magnet is provided as an electromagnetic coil.

According to the rocking chair provided by the utility model, the number of the magnetomotive driving structures is two, and the second mounting piece is at least provided with a first direction and a second direction opposite to the first direction relative to the movement direction of the first mounting piece;

one group of the magnetomotive driving structures is used for driving the second mounting piece to move towards the first direction, and the other group of the magnetomotive driving structures is used for driving the second mounting piece to move towards the second direction.

According to the position detection device for the rocking chair, when the first detection point is in inductive fit with the detection piece, the movable piece moves towards the working stop position; or the second detection point is in inductive fit with the detection piece, so that the movable piece moves towards the initial position, and therefore, only when the first detection point senses the detection piece or the second detection point senses the detection piece, the rocking chair immediately switches the swinging direction or can switch the swinging direction, so that the situation that the limit position of the movement of the seat frame relative to the underframe exceeds the original set limit position, or the seat frame does not reach the original set limit position yet to perform return movement and change the swinging direction is avoided, the swinging stability of the front-back movement of the rocking chair is improved, the action effect of the rocking chair on a user is prevented from being poor, and the user experience is good.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a position detecting device according to the present utility model;

FIG. 2 is an exploded view of a position detection apparatus provided by the present utility model;

FIG. 3 is a schematic view of the structure of the detector provided by the present utility model, wherein the positions of the first detection point and the second detection point are indicated by dashed boxes;

FIG. 4 is a schematic view of the overall structure of the rocking chair provided by the utility model;

FIG. 5 is a schematic view of the internal structure of the swing provided by the present utility model;

FIG. 6 is a first cross-sectional schematic view of a swing provided by the present utility model;

FIG. 7 is a second cross-sectional schematic view of a swing provided by the present utility model.

Reference numerals:

10. a fixing member; 11. a threading through hole; 20. a movable member; 30. a detection structure; 31. a detector; 32. a detecting member; 311. a first detection point; 312. a second detection point; 313. an arc-shaped detection area; 40. a chassis; 50. a mounting; 60. a driving device; 61. a first mounting member; 62. a second mounting member; 63. a first magnet; 64. a second magnet; 70. a connecting rod assembly; 71. a first link; 72. a second link; 81. a first hinge point; 82. a second hinge point; 83. a third hinge point; 84. and a fourth hinge point.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The position detecting device for a rocking chair and the rocking chair to which the position detecting device is applied according to the present utility model will be described below with reference to fig. 1 to 7.

As shown in fig. 1 to 6, there is provided a position detecting apparatus for a swing according to the present utility model, including: a fixing member 10; the movable piece 20 is arranged on one side of the fixed piece 10, the movable piece 20 can swing along with the rocking chair to move relative to the fixed piece 10, and the movable piece 20 is provided with an initial position and a working stop position; the detecting structure 30, the detecting structure 30 includes a detector 31 and a detecting piece 32, the detector 31 is connected with the fixed piece 10, the detecting piece 32 is connected with the movable piece 20, the detector 31 is provided with a first detecting point 311 and a second detecting point 312; when the movable piece 20 is located at the initial position, the first detection point 311 is in inductive fit with the detection piece 32, and the swing direction of the rocking chair is towards the working stop position; when the movable member 20 moves from the initial position to the working stop position, the second detection point 312 is in inductive fit with the detection member 32, and the swing direction of the rocking chair is toward the initial position.

It should be noted that, of course, in some embodiments, the detector 31 may be connected to the movable member 20, and the detecting member 32 may be connected to the fixed member 10, which is not limited herein.

According to the position detection device for the rocking chair, when the first detection point 311 is in inductive fit with the detection piece 32, the movable piece 20 moves towards the working stop position; or the second detecting point 312 is in inductive fit with the detecting member 32, so that the movable member 20 moves towards the initial position, and therefore, only when the first detecting point 311 senses the detecting member 32 or the second detecting point 312 senses the detecting member 32, the rocking chair immediately switches the swinging direction or can switch the swinging direction, thereby avoiding the situation that the limit position of the movement of the seat frame 50 relative to the chassis 40 exceeds the original set limit position, or the seat frame 50 does not reach the original set limit position yet to perform the return movement and change the swinging direction, thereby improving the swinging stability of the front-back movement of the rocking chair, preventing the action effect of the rocking chair on users from being worsened, and ensuring better user experience.

It will be appreciated that the number of the working stops is two, and the two working stops are respectively located at two opposite sides of the initial position, and the movable member 20 can reciprocate between the two working positions by taking the initial position as the starting point; the number of the second detection points 312 is two, and when the movable piece 20 moves to one of the working stop positions, one of the second detection points 312 is in inductive fit with the detection piece 32; when the movable member 20 moves to another working stop position, another second detection point 312 is in inductive engagement with the detecting member 32. By adopting the structure, the rocking chair uses the initial position as a reference, and swings forwards towards one working stop position and swings backwards towards the other working stop position, so that the rocking chair circulates, and the reliable running and experience of rocking are improved.

Specifically, as shown in fig. 3 to 6, in some embodiments of the present utility model, the moving track of the movable member 20 relative to the fixed member 10 is arc-shaped, and the height of the first detection point 311 on the detector 31 is lower than the height of the second detection point 312 on the detector 31. With the structure, the first detection point 311 and the second detection point 312 are correspondingly matched according to the arc-shaped movement track of the swing of the rocking chair, so that the reliability and accuracy of the swing position of the rocking chair are improved.

As shown in fig. 1 to 3, in some embodiments of the present utility model, the detector 31 is a hall PCB board, and the detecting member 32 is a magnetic member inductively coupled to the hall PCB board; wherein, be provided with arc detection zone 313 on the hall PCB board, first check point 311 and second check point 312 equipartition are arranged in arc detection zone 313, and is rational in infrastructure, design benefit detects reliably. Of course, in some embodiments, the detector 31 may be selected to be a three-axis magnetoresistive sensor or the like.

It is contemplated that in some embodiments of the present utility model, as shown in fig. 1-3, the detector 32 is coupled to the moveable member 20 as the detector 31 is coupled to the stationary member 10; wherein, mounting 10 is provided with the threading through-hole 11 that is used for the line of detector 31 to wear to establish, improves compactibility of structure and neatly nature, rational utilization space. The above-mentioned detector 31, i.e. the hall PCB board, is detachably connected to the fixing member 10 by a fastener such as a screw, and the detecting member 32, i.e. the magnetic member is a screw magnet, and an end portion of the screw magnet is screwed to the movable member 20.

It will be appreciated that the present utility model also provides a swing, as shown in figures 1 to 7, comprising: a chassis 40; the seat frame 50 is used for supporting a user, the seat frame 50 is arranged above the underframe 40, and the seat frame 50 can swing back and forth relative to the underframe 40; in the position detecting device for rocking chair, the fixed part 10 is connected with the bottom frame 40, and the movable part 20 is connected with the seat frame 50; and a driving device 60, wherein the driving device 60 can drive the seat frame 50 to swing back and forth relative to the bottom frame 40, and the driving device 60 is electrically connected with the detector 31. By adopting the structure, the driving device 60 and the detector 31 are electrically connected and matched, so that the swinging direction of the rocking chair is controlled, and automatic swinging is realized.

It should be noted that, the movable member 20 is located at the initial position, that is, the seat frame 50 is fixed relative to the bottom frame 40 under the action of gravity when the rocking chair is in the unpowered state.

As shown in fig. 4 to 7, in some embodiments of the present utility model, a link assembly 70 connecting the chassis 40 and the mount 50 is provided between them, and the link assembly 70 can limit the swing range of the mount 50 to swing back and forth with respect to the chassis 40, and make the movement track of the mount 50 arc. Therefore, with the above position detecting device, the hall PCB board is provided with the arc-shaped detecting area 313, the first detecting point 311 and the second detecting point 312 are uniformly distributed in the arc-shaped detecting area 313, and the height of the first detecting point 311 on the detector 31 is lower than the height of the second detecting point 312 on the detector 31. The direction of relative movement of the mount 50 and the chassis 40 can be better detected.

It will be appreciated that, as shown in fig. 4 to 7, the link assembly 70 includes a first link 71 and a second link 72, one end of the first link 71 is hinged with the chassis 40 to form a first hinge point 81, the other end of the first link 71 is hinged with the mount 50 to form a second hinge point 82, one end of the second link 72 is hinged with the chassis 40 to form a third hinge point 83, and the other end of the second link 72 is hinged with the mount 50 to form a fourth hinge point 84; wherein the distance between the first hinge point 81 and the third hinge point 83 is larger than the distance between the second hinge point 82 and the fourth hinge point 84. By providing the rotatable connecting rod assembly 70, the utility model can limit the swing range of the seat frame 50 swinging back and forth relative to the underframe 40 and enable the swing track of the seat frame 50 to be in an arc-shaped route through the rotation fit of the first connecting rod 71 and the second connecting rod 72. When in use, first, the first hinge point 81, the second hinge point 82, the third hinge point 83 and the fourth hinge point 84 are connected in sequence to form a closed quadrilateral structure, so that the swing range of the front-back swing of the seat frame 50 is limited by the change of the included angle of the quadrilateral structure; secondly, because the interval between the first hinge point 81 and the third hinge point 83 is greater than the interval between the second hinge point 82 and the fourth hinge point 84, the quadrilateral structure is a trapezoid structure, so that the second hinge point 82 moves in an arc manner by taking the first hinge point 81 as a rotation center in the process of swinging from rest to front and back, the fourth hinge point 84 moves in an arc manner by taking the third hinge point 83 as a rotation center, and the included angles of extension lines of the first link 71 and the second link 72 are always intersected, so that the seat frame 50 moves in an arc manner relative to the chassis 40, the structure is further simplified, the reliability is higher, the durability is good, the service life is longer, and the experience of a user is improved.

Specifically, as shown in fig. 5 and 7, in some embodiments of the present utility model, the driving device 60 includes: a first mounting member 61, the first mounting member 61 being fixedly provided to the bottom chassis 40; a second mounting member 62, the second mounting member 62 being fixedly disposed on the mount 50; the magnetomotive driving structure comprises a first magnet 63 and a second magnet 64, wherein the first magnet 63 is connected with the first mounting piece 61, the second magnet 64 is connected with the second mounting piece 62, and a driving force is generated between the first magnet 63 and the second magnet 64 through magnetic field change so as to enable the first mounting piece 61 and the second mounting piece 62 to move relatively; wherein at least one of the first magnet 63 and the second magnet 64 is provided as an electromagnetic coil. By adopting the structure, the driving force for driving the second mounting piece 62 to move relative to the first mounting piece 61 is generated through magnetic field change, so that the driving and driven matching process without physical contact is realized, the noiseless movement effect is realized, the structure is simplified, the manufacturing cost is reduced, and the efficiency and the structural stability are improved.

As shown in fig. 4 to 7, in some embodiments of the present utility model, the number of magnetomotive force driving structures is arranged in two groups, and the second mounting member 62 has a first direction and a second direction opposite to the first direction with respect to the moving direction of the first mounting member 61; one set of magnetomotive force driving structures is used to drive the second mount 62 to move in a first direction and the other set of magnetomotive force driving structures is used to drive the second mount 62 to move in a second direction. Specifically, in the present utility model, the movement is forward in the first direction, and the movement is backward in the second direction; when the first detection point 311 is inductively coupled with the detection member 32, the electromagnetic coils of one set of magnetomotive driving structures are energized, so that the second mounting member 62, the seat frame 50 and the movable member 20 all move forward, and when the movable member 20 moves to one of the working stop positions, one of the second detection points 312 is inductively coupled with the detection member 32, the electromagnetic coils of the set of magnetomotive driving structures are deenergized, the second mounting member 62, the seat frame 50 and the movable member 20 are inductively coupled with each other under the action of gravity along with the inertial movement to the initial position, so that the electromagnetic coils of the other set of magnetomotive driving structures are energized, and then, the second mounting member 62, the seat frame 50 and the movable member 20 all move backward, and when the movable member 20 moves to the other working stop position, the other second detection point 312 is inductively coupled with the detection member 32, and the electromagnetic coils of the set of magnetomotive driving structures are deenergized, so that the rocking chair can swing back and forth between the two working stop positions in the front-back direction, the structure is reasonable, and the movement is reliable.

It should be noted that, in some embodiments of the present utility model, the two sets of magnetomotive force driving structures magnetically repel to drive the rocking chair to swing back and forth, and the first magnet 63 and the second magnet 64 belonging to the same set have a first state and a second state therebetween, and in the first state, the first magnet 63 and the second magnet 64 are relatively stationary; in the second state, after the electromagnetic coil is energized, the first magnet 63 and the second magnet 64 are magnetically repelled, so that the second magnet 64 moves relative to the first magnet 63; wherein in the first state, both the front projection of the first magnet 63 and the front projection of the second magnet 64 are arranged to overlap at least in part, and the center lines of the two are not coincident. In the first state, that is, the movable member 20 is located at the initial position relative to the fixed member 10, the seat frame 50 is stationary relative to the bottom frame 40, the front projection of the first magnet 63 and the front projection of the second magnet 64 are overlapped at least partially, and the central lines of the first magnet 63 and the second magnet 64 are not overlapped, so that the second magnet 64 which can move relative to the first magnet 63 is stressed unevenly, the repulsive force between the positions corresponding to the front projection overlapped regions of the first magnet 63 and the second magnet 64 is greater than the repulsive force between the positions corresponding to the front projection non-overlapped regions of the first magnet 63 and the second magnet 64, and therefore, when the electromagnetic coil is electrified, the direction of the repulsive force faces the front projection overlapped regions of the first magnet 63 and the second magnet 64, so that the second magnet 64 can move rapidly relative to the first magnet 63, and then is switched from the first state to the second state, the energy consumption can be further reduced, the working efficiency is improved, the structure is simplified, and the production cost is reduced.

It should be noted that, in some embodiments of the present utility model, the second magnet 64 is spaced above the first magnet 63; the number of the first magnet 63 and the second magnet 64 which are divided into the same group of the magnetomotive force driving structure is not limited herein, and the first magnet 63 and the second magnet 64 may be provided as one or as other numbers, for example, two or the like.

It will be appreciated that in some embodiments of the present utility model, the first magnet 63 is an electromagnetic coil, the second magnet 64 is a permanent magnet, and the structural design is reasonable and the production cost is low. Of course, in some embodiments, both the first magnet 63 and the second magnet 64 may be provided as electromagnetic coils.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. A position detection apparatus for a swing, comprising:

a fixing member (10);

the movable piece (20) is arranged on one side of the fixed piece (10), the movable piece (20) can swing along with the rocking chair to move relative to the fixed piece (10), and the movable piece (20) is provided with an initial position and a working stop position;

-a detection structure (30), the detection structure (30) comprising a detector (31) and a detection member (32), one of the detector (31) and the detection member (32) being connected to the fixed member (10), the other of the detector (31) and the detection member (32) being connected to the movable member (20), the detector (31) being provided with a first detection point (311) and a second detection point (312);

when the movable piece (20) is positioned at the initial position, the first detection point (311) is in inductive fit with the detection piece (32), and the swing direction of the rocking chair is towards the working stop position; when the movable piece (20) moves from the initial position to the working stop position, the second detection point (312) is in inductive fit with the detection piece (32), and the swing direction of the rocking chair faces to the initial position.

2. The position detecting device for rocking chairs according to claim 1, wherein the number of the work stops is two, the two work stops being located on opposite sides of the initial position, respectively, with the initial position being the starting point, the movable member (20) being capable of reciprocating between the two work stops;

the number of the second detection points (312) is two, and when the movable piece (20) moves to one of the working stop positions, one of the second detection points (312) is in inductive fit with the detection piece (32); when the movable member (20) moves to the other working stop position, the other second detection point (312) is in inductive fit with the detection member (32).

3. The position detecting device for rocking chairs according to claim 2, wherein the movement trajectory of the movable member (20) with respect to the fixed member (10) is arc-shaped, the height of the first detecting point (311) on the detector (31) being lower than the height of the second detecting point (312) on the detector (31).

4. A position detection device for rocking chairs according to claim 1 or 3, wherein the detector (31) is a hall PCB, the detection member (32) being a magnetic member inductively fitted with the hall PCB;

the Hall PCB is provided with an arc detection area (313), and the first detection points (311) and the second detection points (312) are uniformly distributed in the arc detection area (313).

5. The position detecting device for rocking chairs according to claim 4, wherein the detector (31) is connected to the fixed part (10), the detecting part (32) being connected to the mobile part (20);

wherein the fixing piece (10) is provided with a threading through hole (11) for the line penetration of the detector (31).

6. A rocking chair, comprising:

a chassis (40);

the seat frame (50) is used for supporting a user, the seat frame (50) is arranged above the underframe (40), and the seat frame (50) can swing back and forth relative to the underframe (40);

the position detecting device for a rocking chair of any one of claims 1 to 5, wherein the fixed member (10) is connected to the bottom frame (40), and the movable member (20) is connected to the seat frame (50);

and a driving device (60), wherein the driving device (60) can drive the seat frame (50) to swing back and forth relative to the underframe (40), and the driving device (60) is electrically connected with the detector (31).

7. The rocking chair according to claim 6, wherein a link assembly (70) is provided between the chassis (40) and the seat frame (50) to connect the two, and the link assembly (70) is capable of limiting the swing range of the seat frame (50) to swing back and forth relative to the chassis (40) and making the movement track of the seat frame (50) arc.

8. The swing of claim 7, wherein the link assembly (70) includes a first link (71) and a second link (72), one end of the first link (71) being hinged to the chassis (40) to form a first hinge point (81), the other end of the first link (71) being hinged to the seat frame (50) to form a second hinge point (82), one end of the second link (72) being hinged to the chassis (40) to form a third hinge point (83), the other end of the second link (72) being hinged to the seat frame (50) to form a fourth hinge point (84);

wherein the distance between the first hinge point (81) and the third hinge point (83) is larger than the distance between the second hinge point (82) and the fourth hinge point (84).

9. The swing according to claim 6, wherein the drive means (60) comprises:

a first mounting member (61), wherein the first mounting member (61) is fixedly arranged on the underframe (40);

a second mounting (62), the second mounting (62) being fixedly arranged on the mount (50);

a magnetomotive driving structure comprising a first magnet (63) and a second magnet (64), said first magnet (63) being connected to said first mount (61), said second magnet (64) being connected to said second mount (62), said first magnet (63) and said second magnet (64) generating a driving force therebetween by a magnetic field variation to move both said first mount (61) and said second mount (62) relative to each other;

wherein at least one of the first magnet (63) and the second magnet (64) is provided as an electromagnetic coil.

10. A rocking chair according to claim 9, wherein the number of magnetomotive driving structures is arranged in two groups, the second mounting member (62) having a first direction and a second direction opposite to the first direction with respect to the direction of movement of the first mounting member (61);

one set of the magnetomotive force driving structures is used for driving the second mounting piece (62) to move towards the first direction, and the other set of the magnetomotive force driving structures is used for driving the second mounting piece (62) to move towards the second direction.