Left-right swing driving mechanism for movable seat

Abstract

The utility model provides a left-right swing driving mechanism for a movable seat, which solves the problems that the swing range of the seat is limited and the like, and comprises a swing base, a deflection base is movably mounted at the upper end of the swing base, and a rotary connecting assembly is arranged between the swing base and the upper end of the deflection base. A deflection limiting assembly for guiding the deflection base to move along the arc-shaped track is arranged between the swinging base and the lower end of the deflection base, and the deflection limiting assembly is provided with a driving assembly for driving the deflection base to swing. The device has the advantages of large moving range, stable structure and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of movable seats, and in particular relates to a left-right swinging driving mechanism of a movable seat. Background Art

[0002] Existing movable seats are generally composed of a surface cover, internal foaming, a frame, an adjustment structure and connecting parts. Among them, the somatosensory seats usually need to add a swing structure to realize seat movement adjustment, and the interaction with the VR somatosensory device is achieved by adjusting the seat orientation angle, thereby improving the user's immersion. However, in actual application, most of the existing somatosensory seats use hydraulic methods for deflection or sliding. This driving method is limited in the amount of adjustment when used for swinging, and large-angle deflection and swinging are not possible. In addition, when performing a swinging motion, if a hydraulic method is used for driving, its insufficient response sensitivity will cause motion delay, affecting the use effect of the somatosensory seat.

[0003] In order to solve the deficiencies of the existing technology, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses a VR360 virtual reality offline experience device [201921738652.X], which includes a base, a frame is provided at one end of the base, a swing device that swings up and down is installed on the frame, a rotating device that rotates in the vertical direction is provided on the swing device, one end of the rotating device is rotatably connected to the back plate of the seat, a rotatable electric shoulder is provided on the upper end of the back plate of the seat, a motorized seat is installed on the back plate of the seat, the swing device includes an electric cylinder and a swing frame, the electric cylinder is fixed to the frame through a bearing seat, the electric cylinder shaft of the electric cylinder is connected to the rear lower end of the swing frame, bearing seats are provided on both sides of the upper end of the frame, the lower part of the swing frame is rotatably installed on the bearing seat through a rotating shaft, and the rotating device includes a servo motor, a planetary reducer and a slewing bearing.

[0004] The above solution solves the problem of insufficient seat activity sensitivity to a certain extent, but the solution still has many shortcomings, such as limited range of activity. Summary of the invention

[0005] The utility model aims to solve the above problems and provides a movable seat left-right swing driving mechanism with reasonable design and large swing deflection range.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a movable seat left and right swing drive mechanism, including a swing base, a yaw base movably installed on the upper end of the swing base, a rotating connection component is arranged between the swing base and the upper end of the yaw base, a yaw limit component guiding the yaw base to move along an arc trajectory is arranged between the swing base and the lower end of the yaw base, and the yaw limit component is equipped with a driving component for driving the yaw base to swing.

[0007] In the above-mentioned left and right swinging driving mechanism of a movable seat, a pair of support plates extending in the vertical direction are arranged at the lower end of the swing base, the support plates are symmetrically arranged and parallel to each other, and a support piece extending in the vertical direction and with an arc-shaped edge is arranged at the lower end of the yaw base. The support piece is movably installed between the support plates through a yaw limit assembly.

[0008] In the above-mentioned left and right swinging driving mechanism of a movable seat, the swing limit assembly includes an arc-shaped limit plate arranged at the lower end of the support plate, a first limit roller rollingly engaged with the upper end of the limit plate is installed between the support plates, a second limit roller rollingly engaged with the lower end of the limit plate is installed between the support plates, and a third limit roller rollingly engaged with both sides of the support plate is installed between the support plates.

[0009] In the above-mentioned left-right swing driving mechanism of a movable seat, openings opposite to the cavity between the support plates are respectively opened on both sides of the swing base, and the support plate and the limit plate at the lower end thereof pass through the openings.

[0010] In the above-mentioned left-right swinging driving mechanism of a movable seat, a limiting block is arranged at the junction of the supporting piece and the limiting piece.

[0011] In the above-mentioned left and right swing drive mechanism of a movable seat, the drive component includes a drive rack installed at the lower end of the yaw base, the drive rack is fixed to the support plate, a drive motor and a speed change gear group engaged with the drive motor are installed on the side of the support plate, the speed change gear group is connected to the drive gear located between the support plates, and the drive gear is engaged with the drive rack for transmission.

[0012] In the above-mentioned left-right swing driving mechanism of a movable seat, the support sheet is fitted with the deflection base through the support seat body, and a reinforcing rib is fixed at the junction of the support seat body and the support sheet.

[0013] In the above-mentioned left and right swing drive mechanism of a movable seat, the rotating connection assembly includes a rotating seat fixed to the upper end of the yaw base, and a rotating table is provided on the upper end of the swing base for the rotating seat to be plugged in and rotatably connected. The central axis of the rotating seat and the rotating table coincides with the arc center of the moving trajectory of the yaw base.

[0014] In the above-mentioned left-right swing driving mechanism of a movable seat, a gap is left between the swing base and the deflection base.

[0015] In the above-mentioned left-right swing driving mechanism of a movable seat, the back of the deflection base and the swing base are respectively arc-shaped.

[0016] Compared with the existing technology, the advantages of the utility model are: the yaw limit assembly and the rotating connection assembly cooperate to realize the active connection between the swing base and the yaw base, the driving assembly is arranged on the yaw limit assembly and provides a driving torque, so that the yaw base can swing within a larger range relative to the swing base; the yaw limit assembly plays a supporting role while limiting the movement range of the yaw seat body, thereby improving the structural stability of the yaw seat body and preventing it from being dislocated during movement; the motor and gear rack method are used to drive the yaw base to move, and its response sensitivity is high and can output a large transmission torque, so that the movable seat can withstand a large weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the deflection base of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the swing base of the utility model;

[0020] In the figure, there are a swing base 1, a support plate 11, a support sheet 12, a support base body 13, a reinforcing rib 14, a yaw base 2, a rotating connection assembly 3, a rotating seat 31, a rotating table 32, a yaw limit assembly 4, a limit sheet 41, a first limit roller 42, a second limit roller 43, a third limit roller 44, an opening 45, a limit block 46, a drive assembly 5, a drive rack 51, a drive motor 52, a speed change gear set 53, and a drive gear 54. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] like Figure 1-3 As shown, a movable seat left-right swing driving mechanism includes a relatively fixed swing base 1, and a swing base 2 is movably installed on the upper end of the swing base 1, which can swing left-right relative to the swing base 1. A rotating connection component 3 is provided between the swing base 1 and the upper end of the swing base 2 as a movable node, and a swing limit component 4 is provided between the swing base 1 and the lower end of the swing base 2 to guide the swing base 2 to move along an arc trajectory. The swing limit component 4 serves as another movable node to limit the range of movement of the swing base 2, and at the same time provides support for the swing base 2 and leaves enough space for movement. The swing limit component 4 is equipped with a driving component 5 that drives the swing base 2 to swing. When the driving component 5 is started, the driving component 5 rotates relative to the fixed central axis, and its rotation angle is limited by the swing limit component 4 and swings within a fan-shaped area.

[0023] Specifically, in order to provide sufficient installation space for the yaw limit assembly 4 and the drive assembly 5, a pair of support plates 11 extending in the vertical direction are provided at the lower end of the swing base 1, and the support plates 11 are connected and fixed to the internal support structure of the swing base 1. The support plates 11 are symmetrically arranged and parallel to each other, and a support sheet 12 extending in the vertical direction and having an arc-shaped edge is provided at the lower end of the yaw base 2. The support sheet 12 is movably installed between the support plates 11 through the yaw limit assembly 4, and a slot body for the yaw base 2 to move is reserved between the swing bases 1.

[0024] In depth, unlike conventional limiting structures, the deflection limiting assembly 4 in the present application includes a limiting plate 41 arranged at the lower end of the support plate 12 and in an arc shape, and the curvature of the lower end of the limiting plate 41 is consistent with the curvature of the motion trajectory of the deflection base 2. A first limiting roller 42 that rolls with the upper end of the limiting plate 41 is installed between the support plates 11, a second limiting roller 43 that rolls with the lower end of the limiting plate 41 is installed between the support plates 11, and a third limiting roller 44 that rolls with both sides of the support plate 12 is installed between the support plates 11. The limiting rollers are arranged in pairs to achieve the vertical and horizontal limiting of the deflection base 2, and at the same time do not interfere with the movement trajectory of the limiting plate 41 and the support plate 12.

[0025] Furthermore, openings 45 are respectively formed on both sides of the swing base 1 and are opposite to the cavity between the support plates 11. The support sheet 12 and the limit sheet 41 at its lower end pass through the openings 45. A protruding structure for assembling the yaw limit assembly 4 is provided at the bottom of the swing base 1. The opening 45 is provided on the protruding structure and extends from the top to both sides, ensuring that the support sheet 12 and the limit sheet 41 are movably installed in the opening 45.

[0026] Furthermore, in order to limit the maximum swing angle of the yaw base 2, a limit block 46 is arranged at the junction of the support plate 12 and the limit plate 41. The limit block 46 is opposite to the limit roller in the yaw limit assembly 4. When the yaw base 2 swings excessively, the limit block 46 blocks it. The limit block 46 is usually also equipped with corresponding sensor elements and the drive assembly 5 for feedback control.

[0027] In addition, the driving assembly 5 includes a driving rack 51 installed at the lower end of the yaw base 2, the driving rack 51 is fixed to the support plate 12, and a driving motor 52 and a speed change gear set 53 meshing with the driving motor 52 are installed on the side of the support plate 11. The speed change gear set 53 is transmission-connected to a driving gear 54 located between the support plates 11, and the driving gear 54 meshes with the driving rack 51 for transmission.

[0028] At the same time, in order to improve the structural strength of the support plate 12 and ensure that it is arranged vertically relative to the horizontal plane, the support plate 12 is fixed to the yaw base 2 through the support seat body 13, a reinforcing rib 14 is fixed at the junction of the support seat body 13 and the support plate 12, and a threaded part is fixed between the support seat body 13 and the yaw base 2.

[0029] It can be seen that the rotating connection assembly 3 includes a rotating seat 31 fixed to the upper end of the yaw base 2, and a rotating table 32 is provided on the upper end of the swing base 1 for the rotating seat 31 to be plugged and rotatably connected. The central axis of the rotating seat 31 and the rotating table 32 coincides with the arc center of the moving track of the yaw base 2. When the yaw base 2 swings left and right relative to the swing base 1, the central axis of its rotating connection extends in the horizontal direction, and its rotation central axis is perpendicular to the plane where the swing track of the yaw base 2 is located.

[0030] Obviously, there is a gap between the swing base 1 and the deflection base 2, and there is a movable space between the lower end and the back to ensure that the deflection base 2 will not collide with the swing base 1 during the swinging process.

[0031] Preferably, since the deflection base 2 is usually matched with a seat cushion to contact the human body, the backs of the deflection base 2 and the swing base 1 are respectively arc-shaped to adapt to the physiological curve of the human body.

[0032] To sum up, the principle of this embodiment is that the yaw base 2 is movably installed above the swing base 1, and its swing trajectory is limited by the rotating connection component 3 and the yaw limit component 4. The driving component 5 provides a driving torque for the yaw base 2 to make it yaw left and right relative to the swing base 1. Since the yaw base 2 has two upper and lower movable supporting structures, the yaw base 2 remains stable when swinging over a large range.

[0033] The specific embodiments described herein are merely examples of the spirit of the present invention. A person skilled in the art of the present invention may make various modifications or additions to the specific embodiments described or replace them in a similar manner, but this will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0034] Although this article uses more terms such as swing base 1, support plate 11, support sheet 12, support base body 13, reinforcing rib 14, deflection base 2, rotating connection assembly 3, rotating seat 31, rotating platform 32, deflection limit assembly 4, limit sheet 41, first limit roller 42, second limit roller 43, third limit roller 44, opening 45, limit block 46, drive assembly 5, drive rack 51, drive motor 52, speed gear set 53, drive gear 54, etc., it does not exclude the possibility of using other terms. The use of these terms is only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A movable chair left-right swing driving mechanism, comprising a swing base (1), wherein a deflection base (2) is movably mounted on the upper end of the swing base (1), characterized in that: A rotating connection component (3) is provided between the upper ends of the swing base (1) and the yaw base (2); a yaw limit component (4) for guiding the yaw base (2) to move along an arc track is provided between the lower ends of the swing base (1) and the yaw base (2); and the yaw limit component (4) is equipped with a driving component (5) for driving the yaw base (2) to swing.

2. The movable seat left-right swing driving mechanism according to claim 1, characterized in that: A pair of support plates (11) are provided at the lower end of the swing base (1), each extending in a vertical direction. The support plates (11) are symmetrically arranged and parallel to each other. A support sheet (12) is provided at the lower end of the deflection base (2), extending in the vertical direction and having an arc-shaped edge. The support sheet (12) is movably mounted between the support plates (11) via a deflection limit assembly (4).

3. The movable chair left-right swing driving mechanism according to claim 2, characterized in that: The deflection limiting assembly (4) comprises an arc-shaped limiting plate (41) arranged at the lower end of the support plate (12); a first limiting roller (42) is installed between the support plates (11) and is in rolling contact with the upper end of the limiting plate (41); a second limiting roller (43) is installed between the support plates (11) and is in rolling contact with the lower end of the limiting plate (41); and a third limiting roller (44) is installed between the support plates (11) and is in rolling contact with both sides of the support plate (12).

4. The movable chair left-right swing driving mechanism according to claim 3, characterized in that: Openings (45) facing the cavity between the support plates (11) are respectively formed on both sides of the swing base (1), and the support plate (12) and the limiting plate (41) at its lower end pass through the openings (45).

5. The movable chair left-right swing driving mechanism according to claim 3, characterized in that: A limiting block (46) is provided at the junction of the supporting piece (12) and the limiting piece (41).

6. The movable chair left-right swing driving mechanism according to claim 2, characterized in that: The driving assembly (5) comprises a driving rack (51) mounted at the lower end of the deflection base (2); the driving rack (51) is fitted and fixed to the support plate (12); a driving motor (52) and a speed change gear set (53) meshing with the driving motor (52) are mounted on the side of the support plate (11); the speed change gear set (53) is transmission-connected to a driving gear (54) located between the support plates (11); and the driving gear (54) meshes with the driving rack (51) for transmission.

7. The movable chair left-right swing driving mechanism according to claim 2, characterized in that: The support sheet (12) is fitted to the deflection base (2) via a support seat body (13), and a reinforcing rib (14) is fixed at the junction of the support seat body (13) and the support sheet (12).

8. The movable chair left-right swing driving mechanism according to claim 1, characterized in that: The rotating connection assembly (3) comprises a rotating seat (31) fixed to the upper end of the yaw base (2); the upper end of the swing base (1) is provided with a rotating table (32) for the rotating seat (31) to be plugged in and rotatably connected; the central axes of the rotating seat (31) and the rotating table (32) coincide with the arc center of the moving trajectory of the yaw base (2).

9. The movable chair left-right swing driving mechanism according to claim 1, characterized in that: A gap is left between the swing base (1) and the deflection base (2).

10. The left-right swing driving mechanism of a movable seat according to claim 1, characterized in that: The backs of the deflection base (2) and the swing base (1) are respectively arc-shaped.

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