Seat capable of swinging in multiple directions

Abstract

The utility model discloses a multidirectional swing seat, which comprises a main supporting seat, a swing seat, a tipping seat, a chair back and a seat part, the main supporting seat is used for connecting a supporting base, and the swing seat is arranged on the main supporting seat in a left-right swing manner along a front-back swing rotating shaft; the tilting seat can be mounted on the swinging seat in a front-back tilting manner through a first rotating shaft in the left-right direction; the seat part is arranged on the tipping seat, the chair back is rotationally connected to the tipping seat, and the chair back and the tipping seat rotate along with the tipping seat; a user sits on the seat part and can lean forwards and backwards and swing leftwards and rightwards, the degree of freedom is high, and the comfort is greatly improved; the structure is simple, and left-right and front-back movement is achieved through the swing seat and the tipping seat; besides, the chair back can rotate independently, when the chair back and the tilting seat tilt backwards, the user can lie in a zero-gravity posture, the comfort is further improved, the chair can swing leftwards and rightwards in the zero-gravity state, the use experience is optimized again, and all-around and higher-quality chair enjoyment is provided for the user.

Description

Technical Field

[0001] This utility model relates to the field of furniture, and in particular to a multi-directional swing chair. Background Technology

[0002] In the field of seat design and manufacturing, consumers' demands for seat comfort are constantly rising along with the improvement of their quality of life. Traditional seats have relatively limited functions, mostly only providing simple fixed posture support, which is insufficient to meet people's diverse needs during long-term use.

[0003] Ordinary chairs typically require users to maintain a relatively static posture while seated, lacking dynamic adjustment capabilities. Maintaining the same sitting posture for extended periods puts significant pressure on the muscles and bones, easily leading to fatigue, soreness, and other discomfort symptoms. This problem is particularly pronounced in scenarios requiring prolonged sitting, such as office work or driving.

[0004] Even some adjustable seats are often limited to single-directional adjustment, such as only allowing for forward / backward tilting or left / right rotation. This limited adjustment method cannot fully simulate the natural range of motion of the human body and is difficult to adapt to various complex usage scenarios and personalized body posture needs. At the same time, with the popularization of health concepts, the design of zero-gravity posture seats is gradually gaining attention. Zero-gravity posture can effectively reduce pressure on the spine, joints, and other parts of the human body, promote blood circulation, and provide users with a more comfortable resting experience.

[0005] However, even those seats on the market that claim to have zero-gravity functionality can only achieve a zero-gravity effect in a fixed posture and cannot be dynamically adjusted in other directions, such as swaying left and right, in a zero-gravity state. This limits the user experience and functional expansion of the seats to some extent. Summary of the Invention

[0006] To address the aforementioned technical problems, this utility model provides a multi-directional swinging seat, comprising a main support base, a rocking seat, a tilting seat, a backrest, and a seat. The main support base connects to a support base. The rocking seat is mounted on the main support base, allowing it to swing left and right via a rocking pivot along the front-to-back direction. The tilting seat is mounted on the rocking seat, allowing it to tilt forward and backward via a first pivot along the left-to-right direction. The seat is placed on the tilting seat, and the backrest is rotatably connected to the tilting seat, both rotating with the tilting seat. When the user sits on the seat, they can tilt forward and backward as well as swing left and right, offering a high degree of freedom and greatly enhancing comfort. Its structure is simple, relying on the rocking seat and the tilting seat to achieve left-to-right and forward-to-back movements respectively. Furthermore, the backrest can rotate independently. When both the backrest and the tilting seat are tilted backward, the user can recline in a zero-gravity posture, further enhancing comfort. The ability to swing left and right in a zero-gravity state further optimizes the user experience, providing users with a comprehensive and superior seating experience.

[0007] The technical solution of this utility model is implemented as follows:

[0008] A multi-directional swinging seat includes a main support seat, a rocking seat, a tilting seat, a backrest, and a seat. The main support seat is configured as a support base connecting the seat. A rocking pivot is provided between the rocking seat and the main support seat in a front-to-back direction, and the rocking seat is swaying left and right on the main support seat via the rocking pivot. A first pivot is provided between the tilting seat and the rocking seat in a left-to-right direction, and the tilting seat is tilted back and forth on the rocking seat via the first pivot. The seat is located on the tilting seat, and the backrest is rotatably located on the tilting seat, and both the seat and the backrest can rotate relative to the rocking seat as the tilting seat rotates.

[0009] The seat supports the human body, allowing users to recline forward and backward, as well as sway left and right, offering a high degree of freedom and enhancing comfort. This multi-directional swaying is achieved by placing a rocking seat on the main support base and a tilting seat on top of the rocking seat. Each of the rocking and tilting seats is responsible for either swaying left and right or tilting forward and backward, resulting in a simple structure. Furthermore, the backrest is independently rotated and mounted on the tilting seat. When both the backrest and the tilting seat are tilted backward, the user can recline in a zero-gravity posture, further enhancing comfort. The ability to sway left and right in this zero-gravity posture further improves the user experience.

[0010] Preferably, a motion device is provided between the rocker seat and the tilting seat. The two ends of the motion device are respectively rotatably mounted on the rocker seat and the tilting seat. The motion device is configured to provide stable support for the rotation of the tilting seat on the rocker seat. Setting the rocker seat on the main support first to achieve left-right rocking, and then setting the tilting seat on the rocker seat to achieve forward-backward tilting, is to meet space requirements. If the tilting seat were set on the main support first, both would be smaller, resulting in less space between them and insufficient space to install the motion device.

[0011] Preferably, the motion device includes a telescopic locking member and an elastic member. The elastic member has two ends respectively mounted on the rocker seat and the tilt seat, acting on them. The telescopic locking member has two ends respectively mounted on the rocker seat and the tilt seat, and extends and retracts when the tilt seat rotates relative to the rocker seat. The telescopic locking member is configured to selectively lock or unlock the relative rotation between the tilt seat and the rocker seat. The elastic member is configured to provide cushioning for the tilt seat's backward rotation and elastic force for its forward rotation. When the telescopic locking member is unlocked, it extends and retracts with the tilting of both seats, and locks after the corresponding extension and retraction, thus keeping the tilt seat in its rotated position. The elastic member provides cushioning and resistance when the tilt seat rotates backward, preventing discomfort from excessively rapid backward rotation, and also assists the tilt seat when it moves forward.

[0012] Preferably, the motion device is an electric actuator. The electric actuator is controlled by the user, making the switching process controllable and maintaining stability during movement.

[0013] Preferably, the rocker seat is provided with a first protrusion, the tilting seat is provided with a second protrusion, the first protrusion is provided with a second rotating shaft, the second protrusion is provided with a third rotating shaft, one end of the motion device is rotatably connected to the first protrusion through the second rotating shaft, and the other end of the motion device is rotatably connected to the second protrusion through the third rotating shaft.

[0014] Preferably, a locking assembly is provided between the rocker seat and the main support seat. This locking assembly includes a sliding control component, a transmission component, and a locking pin. The rocker shaft is horizontally mounted on the main support seat, the sliding control component is slidably mounted on the rocker shaft, and the transmission component is rotatably mounted on the main support seat. One end of the transmission component is connected to the sliding control component, and the other end is connected to the locking pin. The locking pin is slidably mounted on the main support seat in a left-right direction, and the sliding control component drives the locking pin to slide. When the locking pin slides and enters the rocker seat, the rocker seat and the main support seat are locked. The locking assembly is controlled by a pull cable, and the sliding control component is connected to the pull cable. When the locking pin leaves the rocker seat, the rocker seat can cause the tilt seat, seat, and backrest to rock left and right relative to the main support seat, improving comfort. When the locking pin enters the rocker seat and locks it, the entire structure remains stable. This provides options for different user needs.

[0015] Preferably, the sliding control component has a slot with a notch below it. The swing shaft enters the slot through the notch and engages with the sliding control component. The sliding control component has a connecting part protruding in the left-right direction, and the connecting part has a waist-shaped groove. The transmission component is a torsion spring, with one end of the transmission component inserted into the waist-shaped groove. This design cleverly utilizes a swing shaft, effectively saving space and making the structure more compact.

[0016] Preferably, the tilt seat has a first accommodating space located between the tilt seat and the base, and the rocker seat has a second accommodating space, with the main support seat disposed within the second accommodating space. A clearance groove is provided at the center of the bottom of the tilt seat, through which the rocker seat enters the first accommodating space. Both the main support seat and the rocker seat are located within the first accommodating space. The tilt seat encloses both the rocker seat and the main support seat.

[0017] Preferably, the rocker seat has a clearance hole, and the support base includes a lifting air rod and a support foot. The upper end of the lifting air rod is connected to the main support seat, and the lower end of the lifting air rod is connected to the support foot. The clearance hole is configured to allow clearance from the lifting air rod.

[0018] Preferably, the first rotating shaft is located at the lower front part of the rocker seat, and in the front-back direction, the first rotating shaft is closer to the middle of the rocker seat than the front end of the rocker seat; the first rotating shaft is located below the top of the lifting air rod, and in the front-back direction, the position of the first rotating shaft coincides with the lifting air rod. This design makes it less likely for the tilting seat to tip over during tilting rotation.

[0019] The design starting point, concept, and beneficial effects of this utility model, which adopts the above technical solution, are as follows:

[0020] The seat supports the human body, allowing users to recline forward and backward, as well as sway left and right, offering a high degree of freedom and enhancing comfort. This multi-directional swaying is achieved by placing a rocking seat on the main support base and a tilting seat on top of the rocking seat. Each of the rocking and tilting seats is responsible for either swaying left and right or tilting forward and backward, resulting in a simple structure. Furthermore, the backrest is independently rotated and mounted on the tilting seat. When both the backrest and the tilting seat are tilted backward, the user can recline in a zero-gravity posture, further enhancing comfort. The ability to sway left and right in this zero-gravity posture further improves the user experience. Attached Figure Description

[0021] Figure 1 This is a schematic diagram showing the user sitting on the chair in its normal position in an embodiment of the present invention;

[0022] Figure 2 This is a side view of the seat with the backrest reclined in an embodiment of the present invention.

[0023] Figure 3 This is a side view of the seat in a resting state in an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of a user lying on the chair in a zero-gravity posture during a resting state, as described in an embodiment of the present invention.

[0025] Figure 5 This is a schematic diagram showing the tilting seat rotating on the base in an embodiment of the present invention;

[0026] Figure 6 This is a three-dimensional structural diagram of the motion device in the embodiment of the present invention, which is installed in the tilting seat;

[0027] Figure 7 This is a three-dimensional structural diagram of the tilting seat and the base in an embodiment of the present invention;

[0028] Figure 8 This is a three-dimensional structural diagram of the motion device in the resting state of the present invention, which is installed in the tilting seat.

[0029] Figure 9 This is a schematic diagram showing the state transition triangle changes when the tilting seat rotates in an embodiment of the present invention;

[0030] Figure 10 This is a three-dimensional structural diagram of the tilting seat in an embodiment of the present invention;

[0031] Figure 11 This is a three-dimensional structural diagram of the base and lifting air column in an embodiment of the present invention. Figure 1 ;

[0032] Figure 12 This is a three-dimensional structural diagram of the base and lifting air column in an embodiment of the present invention. Figure 2 ;

[0033] Figure 13 This is a three-dimensional structural diagram of the connection between the motion device and the base in an embodiment of the present invention;

[0034] Figure 14 This is a three-dimensional structural diagram of the telescopic component in the embodiments of this utility model;

[0035] Figure 15 This is a three-dimensional structural diagram of the locking component being installed on the main support and the rocker seat in an embodiment of the present invention;

[0036] Figure 16 This is a cross-sectional view of the locking component being disposed on the main support and the rocker seat in an embodiment of the present invention;

[0037] Figure 17 This is a three-dimensional structural diagram of the present invention, showing the lifting gas spring and the restoring spring installed on the main support seat in an embodiment.

[0038] Figure 18 This is a three-dimensional structural diagram of the rocker seat with a rocker shaft and a restoring spring in an embodiment of the present invention.

[0039] Figure 19 This is a three-dimensional structural diagram of the sliding control component and the transmission component in an embodiment of the present invention.

[0040] The attached figures are labeled as follows: base 1; main support 101; rocker seat 102; second accommodating space 1021; clearance hole 1022; lifting gas spring 2; first rotating shaft 3; main module 4; seat 41; backrest 42; tilting seat 5; first accommodating space 51; clearance groove 52; mounting base 53; surrounding plate 54; footrest 6; seat 7; second rotating shaft 8; third rotating shaft 9; first protrusion 11; first mounting gap 111; third mounting gap 112; second protrusion Seat 12; Second mounting gap 121; Fourth mounting gap 122; Elastic element 13; Telescopic locking element 14; Mounting part 141; Telescopic element 15; Sleeve part 151; Transverse sleeve part 1511; Longitudinal sleeve part 1512; Telescopic rod 152; Abutting part 153; Arc-shaped groove 154; Swing pivot 16; Sliding control element 17; Slot 171; Bay opening 172; Connecting part 173; Waist-shaped groove 174; Transmission element 18; Returning spring 19. Detailed Implementation

[0041] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0042] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0043] In the description of this utility model, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] The specific implementation of this utility model is as follows:

[0045] like Figure 1-5 As shown, this utility model provides a multi-directional swinging seat, including a main support seat 101, a rocking seat 102, a tilting seat 5, a backrest 42, and a seat 7. The main support seat 101 is configured as a support base connecting the seat. A rocking pivot 16 arranged in the front-to-back direction is provided between the rocking seat 102 and the main support seat 101, and the rocking seat 102 is swaying left and right on the main support seat 101 through the rocking pivot 16. A first pivot 3 arranged in the left-to-right direction is provided between the tilting seat 5 and the rocking seat 102, and the tilting seat 5 is tilted back and forth on the rocking seat 102 through the first pivot 3. The seat 7 is disposed on the tilting seat 5, and the backrest 42 is rotatably disposed on the tilting seat 5, and both the seat 7 and the backrest 42 can rotate relative to the rocking seat 102 as the tilting seat 5 rotates.

[0046] The seat 7 supports the human body, allowing the user to not only tilt back and forth but also sway left and right, offering a high degree of freedom and thus enhancing comfort. This multi-directional swaying is achieved by setting a rocking seat 102 on the main support 101 and a tilting seat 5 on the rocking seat 102. The rocking seat 102 and the tilting seat 5 each handle the left-right swaying and forward-backward tilting, resulting in a simple structure. Furthermore, the backrest 42 is independently rotated and mounted on the tilting seat 5. When the backrest 42, seat 7, and tilting seat 5 are all tilted backward, the chair is in a resting state, with the user's knees and heart at the same level. The user can recline in a zero-gravity posture, further enhancing comfort. Moreover, the ability to sway left and right in this zero-gravity posture further improves the user experience.

[0047] Specifically, the seat 7 and the tilting seat 5 form the chair seat 41, the backrest 42 and the chair seat 41 form the main module 4, and the rocking seat 102 and the main support seat 101 form the base 1. In the resting state, the backrest 4 on the base 1 tilts backward at an angle of 18-20°, and the backrest 42 rotates relative to the chair seat 41 at an angle of 30-40°. After the main module 4 rotates further, the backrest 42 will only tilt upward at about 30°, causing the upper body of the human body to fall more, while the chair seat 41 will tilt upward at about 20° to lift the lower body of the human body, thus achieving a zero-gravity posture. Even if the chair backrest 42 of the chair with poor rotation ability tilts backward at more than 20°, at this time, combined with the backward tilting angle of the main module 4, the effect of zero gravity can be roughly achieved.

[0048] To achieve a zero-gravity posture while resting, setting the footrest to 6 will be more effective; for example Figure 4 As shown, the seat 41 is also equipped with a footrest 6, which is retractably located at the front of the seat 41. When the seat is in a resting state, the footrest 6 can extend forward from the seat 41 to support the legs and feet, improving comfort during rest. The footrest 6 can also be folded into the seat 41 when the user is sitting normally. Furthermore, in the resting state, the footrest 6 tilts downward from back to front, forming an angle between the seat 41 and the footrest 6. The front end of the seat 41 is adjacent to the rear end of the footrest 6, and the junction of the seat 41 and the footrest 6 forms an upwardly protruding knee support. The angle between the seat 41 and the footrest 6 makes it more comfortable for the user's legs to bend during rest, and the upwardly protruding knee support can support the bent knee and maintain the knee height, allowing the posture to be in a zero-gravity state.

[0049] Unlike traditional chairs, the backrest 42 is connected to the seat 41, specifically, as Figure 2 , 3As shown in Figures 6-10, the tilt seat 5 includes an upwardly protruding mounting base 53, and the backrest 42 is rotatably mounted on the mounting base 53. Since this chair has no chassis, the rotation method of the backrest 42 differs from that of a traditional office chair. The backrest 42 is directly rotatably mounted on the tilt seat 5, achieving the same tilting effect. The seat 7 is slidably mounted on the tilt seat 5, extending upwards and rotatably connected to and linked with the lower end of the backrest 42. When the backrest 42 rotates backward, it drives the seat 7 to slide forward. The seat 7 supports the buttocks. The rotatable connection point between the seat 7 and the backrest 42 is located below the rotatable connection point between the backrest 42 and the mounting base 53, allowing the seat 7 to be pushed forward when the backrest 42 is tilted backward, thus making the backrest 42 more comfortable when switched to the tilted position.

[0050] Furthermore, the tilt seat 5 has a first accommodating space 51 located between the tilt seat 5 and the seat portion 7. The rocker seat 102 has a second accommodating space 1021, and the main support seat 101 is disposed in the second accommodating space 1021. A clearance groove 52 is provided at the middle of the bottom of the tilt seat 5, through which the rocker seat 102 enters the first accommodating space 51. Both the main support seat 101 and the rocker seat 102 are located in the first accommodating space 51. A motion device is provided between the rocker seat 102 and the tilt seat 5. The two ends of the motion device are rotatably mounted on the rocker seat 102 and the tilt seat 5, respectively. The motion device is configured to provide stable support for the rotation of the tilt seat 5 on the rocker seat 102. The rocker seat 102 is first installed on the main support 101 to achieve left and right rocking, and then the tilting seat 5 is installed on the rocker seat 102 to achieve forward and backward tilting. This is due to space requirements. If the tilting seat 5 is installed on the main support 101 first, it means that both are relatively small, and therefore the space between them is also small, with insufficient space to install the motion device. Figure 15-19 As shown, a locking assembly is provided between the rocker seat 102 and the main support seat 101. The locking assembly includes a sliding control member 17, a transmission member 18, and a locking pin (not shown). The rocker shaft 16 is horizontally arranged on the main support seat 101. The sliding control member 17 is slidably arranged on the rocker shaft 16. The transmission member 18 is rotatably arranged on the main support seat 101. One end of the transmission member 18 is connected to the sliding control member 17, and the other end of the transmission member 18 is connected to the locking pin. The locking pin is slidably arranged on the main support seat 101 in the left-right direction, and the sliding control member 17 drives the locking pin to slide. When the locking pin slides and enters the rocker seat 102, the rocker seat 102 is locked to the main support seat 101. The locking mechanism is controlled by a pull cable, and the sliding control 17 is connected to the pull cable. When the locking pin leaves the rocker seat 102, the rocker seat 102 can cause the tilt seat 5, seat 7, and backrest 42 to rock back and forth relative to the main support seat 101, improving comfort. When the locking pin enters the rocker seat 102 and locks it, the whole structure remains stable. This provides options for different user needs.

[0051] The tilting seat 5 encloses the rocker seat 102, the main support seat 101, the motion device, and the locking assembly. The tilting seat 5 covers the base 1. There is a gap between the rocker seat 102 and the tilting seat 5. Specifically, the gap in the front-to-back direction is only 2mm, and the gap in the left-to-right direction is only 3mm. Therefore, the overall integrity is better and it prevents fingers from being pinched. The bottom of the tilting seat 5 has a surrounding plate 54 protruding upward around the relief groove 52. The base 1 is located between the surrounding plates 54. The first rotating shaft 3 is located between the surrounding plate 54 and the rocker seat 102. The first rotating shaft 3 is arranged in the left-to-right direction, and there are two first rotating shafts 3. The two first rotating shafts 3 are located on the left and right end faces of the rocker seat 102 and are rotatably connected to the left and right plates of the surrounding plate 54.

[0052] The rocker base 102 has a clearance hole 1022. The support base includes a lifting air rod 2 and a support foot (not shown). The upper end of the lifting air rod 2 is connected to the main support base 101, and the lower end of the lifting air rod 2 is connected to the support foot. The clearance hole 1022 is configured to allow passage for the lifting air rod 2. The position of the first rotating shaft 3 will also affect the stability when switching to the resting state, such as... Figure 9-12 As shown, in this embodiment, the first rotating shaft 3 is located at the lower front part of the rocker seat 102; and in the front-back direction, the first rotating shaft 3 is closer to the middle of the rocker seat 102 than the front end of the rocker seat 102; in the height direction, the first rotating shaft 3 is located below the top of the lifting gas spring 2, and in the front-back direction, the position of the first rotating shaft 3 coincides with the lifting gas spring 2. First, if the position of the first rotating shaft 3 is too far back, there is a risk of tipping over when the main module 4 rotates backward. Second, if the position of the first rotating shaft 3 is too far forward, it is difficult for the user to drive the main module 4 to rotate backward using only the force of falling backward. Moreover, the tilting seat 5 located in front of the base 1 will approach the base 1 when rotating, and the base 1 is located inside the tilting seat 5, so interference is likely to occur. Therefore, this solution solves the above problems. The position of the first rotating shaft 3 in the height direction lowers the height of the rotation point of the main module 4, thereby lowering the overall center of gravity and reducing the risk of tipping over when the main module 4 rotates backward. The lifting air spring 2 supports the base 1 and the main module 4. By adjusting the position of the first rotating shaft 3 in the front-rear direction, it aims to align the rotation point of the main module 4 with the support point in the same front-rear position, thus solving the problems of tipping over and difficulty in driving the main module 4 to rotate while lying down. Simultaneously, as... Figure 7 , 9 As shown, the length of the base 1 protruding forward from the lifting rod 2 is less than the length of its protruding backward from the lifting rod 2.

[0053] Furthermore, the motion device is rotatably mounted on the rocker seat 102 via the second rotating shaft 8, and rotatably mounted on the tilting seat 5 via the third rotating shaft 9. When the main body module 4 rotates backward on the base 1, the positions of the first rotating shaft 3 and the second rotating shaft 8 are relatively fixed, while the position of the third rotating shaft 9 relative to the first rotating shaft 3 and the second rotating shaft 8 changes. The first rotating shaft 3, the second rotating shaft 8, and the third rotating shaft 9 together form a state transition triangle. When switching to the resting state, the shape of the state transition triangle changes. The third rotating shaft 9 can be located in front of the second rotating shaft 8 or behind the second rotating shaft 8. When the third rotating shaft 9 is located in front of the second rotating shaft 8, the state transition triangle becomes smaller when the main body module 4 rotates backward. When the third rotating shaft 9 is located behind the second rotating shaft 8, the state transition triangle becomes larger when the main body module 4 rotates backward. The motion device acts on this state transition triangle to maintain stability when the shape of the state transition triangle changes.

[0054] The installation of the second rotating shaft 8 and the third rotating shaft 9 is as follows:

[0055] like Figure 6 , 8 As shown in Figure -12, the rocker seat 102 is provided with a first protrusion 11, and the tilting seat 5 is provided with a second protrusion 12. Both the first protrusion 11 and the second protrusion 12 protrude into the first accommodating space 51. The first protrusion 11 is provided with a second rotating shaft 8, and the second protrusion 12 is provided with a third rotating shaft 9. The two ends of the motion device are rotatably connected to the first protrusion 11 and the second protrusion 12 through the second rotating shaft 8 and the third rotating shaft 9, respectively. The first protrusion 11 and the second protrusion 12 are arranged at intervals and are parallel to each other. The second protrusion 12 can be in front of the first protrusion 11 or behind the first protrusion 11, corresponding to the position of the second and third rotating shafts 9. Different relative positions will cause different changes in the shape of the state transition triangle, but the effect is the same. In this embodiment, the second protrusion 12 is located in front of the first protrusion 11, that is, the third rotating shaft 9 is located in front of the second rotating shaft 8. When switching to the resting state, the third rotating shaft 9 moves upward and backward and approaches the second rotating shaft 8, thereby changing the shape of the state transition triangle and making the area of ​​the state transition triangle smaller. From front to back, the thickness of the rocker seat 102 increases, and the upper part of the rocker seat 102 has an upwardly inclined slope to avoid the second protrusion 12 located in front of the rocker seat 102.

[0056] The motion device is as follows:

[0057] like Figure 6 , 8As shown in Figure -14, the motion device includes an elastic element 13 arranged in the front-to-back direction and a telescopic locking element 14. The elastic element 13 has two ends respectively mounted on the tilt seat 5 and the rocker seat 102 and acts on them. The telescopic locking element 14 has two ends respectively mounted on the tilt seat 5 and the rocker seat 102 and extends / retracts when the main module 4 rotates relative to the base 1. The telescopic locking element 14 is configured to selectively lock or unlock the relative rotation between the main module 4 and the base 1. The elastic element 13 is configured to allow the main module 4 to move forward from its resting state. The elastic force of rotation; when unlocking, the telescopic locking member 14 can extend and retract with the rotation of the tilting seat 5 and the base 1. The telescopic locking member 14 locks after the corresponding extension and retraction, so that the main body module 4 can stay in the rotated position; the elastic member 13 can provide elastic buffer when the main body module 4 rotates backward, and can also provide resistance to avoid discomfort caused by rotating backward too quickly; in zero gravity state, it is inconvenient for the user to use external force to reset, and can only sit forward and reset by switching the center of gravity. Therefore, the elastic member 13 can also provide elastic force when the user wants to reset.

[0058] Specifically, the elastic element 13 is a spring, and the telescopic locking element 14 is a gas spring strut with a buffering effect. The gas spring strut has buffering, locking, and telescopic effects. The telescopic locking element 14 can also provide buffering, slowing down the speed of the main module 4 when it falls backward, thus improving the user experience. Since the gas spring strut is somewhat similar to a hydraulic effect, its telescopic speed is very slow. Although it can improve the user experience when falling backward, it will also be more difficult to reset. Therefore, the reset force provided by the elastic element 13 is more necessary. The elastic element 13 and the telescopic locking element 14 are parallel to each other. There are at least two elastic elements 13, which are symmetrically arranged on both sides of the telescopic locking element 14. The symmetrical arrangement of the elastic elements 13 makes the application of elastic force more balanced, and the buffering and reset are more balanced, resulting in a better user experience.

[0059] The motion device also includes a telescopic member 15, whose two ends are rotatably connected to the tilting seat 5 and the rocking seat 102, respectively. An elastic member 13 is sleeved on the telescopic member 15. The telescopic member 15 is configured to limit and guide the elastic member 13. It is used to install the elastic member 13 and to guide and limit the elastic member 13. Specifically, the telescopic member 15 includes a sleeve 151 and a telescopic rod 152. The sleeve 151 includes a transverse sleeve portion 1511 and a longitudinal sleeve portion 1512. The telescopic rod 152 is inserted into the longitudinal sleeve portion 1512. The end of the telescopic rod 152 protruding from the sleeve 151 is provided with an abutment portion 153. The abutment portion 153 has an arc-shaped groove 154. The transverse sleeve portion 1511 is sleeved on the second rotating shaft 8. The abutment portion 153 abuts against the third rotating shaft 9, and the third rotating shaft 9 is located in the arc-shaped groove 154. The elastic member 13 abuts between the transverse sleeve portion 1511 and the abutment portion 153.

[0060] The first boss 11 has a first mounting gap 111 in the middle, and the second boss 12 has a second mounting gap 121 in the middle; there are two second rotating shafts 8 and two third rotating shafts 9. The two second rotating shafts 8 are inserted into the upper end of the first boss 11 and both protrude at the first mounting gap 111. Similarly, the two third rotating shafts 9 protrude at the second mounting gap 121; the two ends of the telescopic locking member 14 are respectively set in the first mounting gap 111 and the second mounting gap 121. Both ends of the telescopic locking member 14 are provided with mounting portions 141. The mounting portions 141 protrude in the left and right direction and are sleeve-shaped. The protruding ends of the second rotating shafts 8 and the third rotating shafts 9 are inserted into the mounting portions 141. The first boss 11 also has a third mounting gap 112, and the second boss 12 also has a fourth mounting gap 122. There are two of each of the third mounting gap 112 and the fourth mounting gap 122. The two ends of the telescopic member 15 are located in the third mounting gap 112 and the fourth mounting gap 122, respectively, and are connected to the second rotating shaft 8 exposed at the third mounting gap 112 and the third rotating shaft 9 exposed at the fourth mounting gap 122, respectively. The transverse sleeve portion 1511 of the telescopic member 15 is located at the third mounting gap 112, and the abutting portion 153 of the telescopic member 15 is located at the fourth mounting gap 122. The first boss 11 and the second boss 12 each include four protruding portions with shaft holes under the division of the mounting gaps.

[0061] 2. Alternatively, an electric actuator can be used as the motion device. The two ends of the electric actuator can be connected to the tilting seat 5 and the swing seat 102 respectively. This will not be elaborated here.

[0062] Furthermore, such as Figure 15-19 As shown, regarding the locking assembly, the sliding control member 17 has a slot 171, and below the slot 171 is a notch 172. The swing shaft 16 enters the slot 171 from the notch 172 and engages with the sliding control member 17. The sliding control member 17 has two connecting parts 173 protruding in the left-right direction, which are symmetrically arranged. Each of the two connecting parts 173 has a waist-shaped groove 174. The transmission member 18 and the locking pin also have two corresponding parts, which are also symmetrically arranged. The transmission member 18 is a torsion spring, and one end of the transmission member 18 is inserted into the waist-shaped groove 174. When the sliding control member 17 is driven by the pull wire to slide back and forth, the transmission member 18 rotates under the action of the waist-shaped groove 174, and the transmission member 18 is L-shaped, thereby driving the locking pin to slide in the left-right direction. There are also four restoring springs 19 between the swing base 102 and the main support base 101, which are arranged symmetrically in pairs on both sides of the swing shaft 16.

Claims

1. A multi-directional swivel chair, characterized by: The seat comprises a main support base, a swing base, a tilt base, a backrest and a seat part, the main support base is configured to connect a support base of the seat; the swing base is provided with a swing rotation shaft arranged in the front-rear direction between the main support base and the swing base, the swing base is swingably arranged on the main support base through the swing rotation shaft; the tilt base is provided with a first rotation shaft arranged in the left-right direction between the swing base and the tilt base, the tilt base is tiltably arranged on the swing base through the first rotation shaft; the seat part is arranged on the tilt base, the backrest is rotatably arranged on the tilt base, and the seat part and the backrest can rotate relative to the swing base with the rotation of the tilt base.

2. A multi-directional reclining seat as claimed in claim 1, characterised in that: The swing base and the tilt base are provided with a movement device, two ends of the movement device are rotatably arranged on the swing base and the tilt base respectively, and the movement device is configured to provide stable support for the rotation of the tilt base on the swing base.

3. A multi-directional reclining seat as claimed in claim 2, characterised in that: The movement device comprises an elastic member and a telescopic locking piece, two ends of the elastic member are arranged on the swing base and the tilt base respectively and act on the swing base and the tilt base, and two ends of the telescopic locking piece are arranged on the swing base and the tilt base respectively and are telescopic when the tilt base rotates relative to the swing base; the telescopic locking piece is configured to selectively lock or unlock the relative rotation of the tilt base and the swing base; and the elastic member is configured to provide a buffer for the backward rotation of the tilt base and an elastic force for the forward rotation of the tilt base.

4. The multi-directional reclining seat of claim 2, wherein: The movement device is an electric push rod.

5. The multi-directional reclining seat of claim 2, wherein: The swing base is provided with a first convex base, the tilt base is provided with a second convex base, the first convex base is provided with a second rotation shaft, the second convex base is provided with a third rotation shaft, one end of the movement device is rotatably connected with the first convex base through the second rotation shaft, and the other end of the movement device is rotatably connected with the second convex base through the third rotation shaft.

6. The multi-directional reclining seat of claim 1, wherein: The swing base and the main support base are provided with a locking assembly, the locking assembly comprises a sliding control piece, a transmission piece and a locking pin; the swing rotation shaft is transversely arranged on the main support base, the sliding control piece is slidably arranged on the swing rotation shaft, the transmission piece is rotatably arranged on the main support base, one end of the transmission piece is connected with the sliding control piece, and the other end of the transmission piece is connected with the locking pin; the locking pin is slidably arranged on the main support base in the left-right direction and is driven to slide when the sliding control piece slides; when the locking pin slides and enters the swing base, the swing base and the main support base are locked.

7. A multi-directional reclining seat as claimed in claim 6, characterised in that: The sliding control piece is provided with a clamping groove, the clamping groove is provided with a clamping opening below, the swing rotation shaft enters the clamping groove from the clamping opening and is clamped with the sliding control piece; the sliding control piece is provided with a connecting part protruding in the left-right direction, and the connecting part is provided with a waist-shaped groove; the transmission piece is a torsion spring, and one end of the transmission piece is inserted into the waist-shaped groove.

8. The multi-directional reclining seat of claim 1, wherein: The tilt base has a first accommodation space, the first accommodation space is located between the tilt base and the seat part, the swing base is provided with a second accommodation space, and the main support base is arranged in the second accommodation space; the tilt base is provided with an avoiding groove at the middle position of the bottom, the swing base enters the first accommodation space through the avoiding groove, and the main support base and the swing base are both located in the first accommodation space.

9. The multi-directional reclining seat of claim 1, wherein: The swing base is provided with an avoiding hole, the support base comprises a lifting air rod and a support leg, the upper end of the lifting air rod is connected with the main support base, and the lower end of the lifting air rod is connected with the support leg; the avoiding hole is configured to avoid the lifting air rod.

10. The multi-directional reclining seat of claim 9, wherein: The first rotating shaft is arranged at the lower front part of the main support base, and is closer to the middle part of the main support base than to the front end of the main support base in the front-rear direction; the first rotating shaft is located below the top of the lifting air rod, and the position of the first rotating shaft coincides with the lifting air rod in the front-rear direction.

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