Multifunctional chair

Abstract

The invention relates to a multifunctional chair, which is applied to the technical field of office furniture and massagers, and comprises a base mechanism, a cushion, a backrest mechanism and armrest mechanisms, the base mechanism comprises a base, a rhythm assembly and a lifting assembly, the rhythm assembly and the lifting assembly are both arranged on the base, the rhythm assembly is used for driving the cushion to rhythm in the vertical direction, and the lifting assembly is used for adjusting the height of the cushion; the backrest mechanism comprises a backrest and a moving assembly; the number of the armrest mechanisms is two. A user sits on the cushion, and two arms can be placed on the two armrest mechanisms; in the using process, the backrest can be driven by the moving assembly to move towards the side close to or away from the cushion, so that the backrest is attached to the back of the human body, the rhythm assembly enables a user to rhythm in the vertical direction, the lifting assembly adjusts the height of the cushion, and therefore more functions are provided, and more using requirements of the user are met.

Description

Technical Field

[0001] The invention relates to the technical field of office furniture and massagers, in particular to a multifunctional chair. Background Art

[0002] A seat is usually a piece of furniture with a backrest, which is used for people to sit. Over time, the concept of a chair has gradually expanded and now refers to a piece of furniture with a backrest and / or armrests. Seats can be classified according to different usage occasions and materials, such as child safety seats, airport seats, car seats, bus seats, family seats, restaurant seats, etc.

[0003] As people's demand for seats increases, some seats use mechanical rolling force and mechanical squeezing force to perform massage, promote the dredging of the body's meridians and the circulation of qi and blood, and maintain the body's yin and yang balance. They are suitable for white-collar workers who sit in the office for a long time, helping people relax muscles and eliminate fatigue, but the functions are relatively simple and cannot better relieve the user's fatigue.

[0004] In view of this, a multifunctional chair is urgently needed to solve the above problems. Summary of the invention

[0005] In order to help solve the problems existing in the prior art, the present invention provides a multifunctional chair, which adopts the following technical solution: comprising: a base mechanism, a seat cushion, a backrest mechanism and an armrest mechanism;

[0006] The base mechanism includes a base, a rhythmic component and a lifting component, wherein the rhythmic component and the lifting component are both arranged on the base, the rhythmic component is used to drive the seat cushion to perform rhythmic movement in a vertical direction, and the lifting component is used to adjust the height of the seat cushion;

[0007] The backrest mechanism comprises a backrest and a moving assembly, wherein the backrest is slidably arranged on the seat cushion, and the moving assembly is used to drive the backrest to move toward or away from the seat cushion;

[0008] The armrest mechanisms are provided with two, and the two armrest mechanisms are respectively arranged on both sides of the seat cushion.

[0009] It is further characterized in that

[0010] The rhythmic assembly includes a movable frame, a rotating shaft, a cam, a swing sleeve and a driving member, wherein the movable frame is arranged above the base, the rotating shaft is arranged on the base for horizontal rotation, the cam is arranged on the rotating shaft, the swing sleeve is arranged on the cam, the swing sleeve is connected to the movable frame in the circumferential direction, and the driving member is used to drive the rotating shaft to rotate;

[0011] The lifting assembly includes a fixed sleeve, a movable sleeve, an insertion rod and a turntable, wherein the fixed sleeve is arranged on the top of the movable frame, the movable sleeve is inserted into the fixed sleeve from top to bottom, the turntable is arranged on the top of the movable sleeve, and the seat cushion is arranged on the top of the turntable;

[0012] The fixing collar side is provided with a first fixing hole, the movable sleeve is provided with a plurality of first adjustment holes along the vertical direction, and the insertion rod is inserted into the first fixing hole and one of the first adjustment holes.

[0013] A mounting box is provided at the bottom of the seat cushion, and a slide rail is horizontally provided in the mounting box;

[0014] The backrest is L-shaped, a sliding seat is arranged on the horizontal part of the backrest, the sliding seat is slidably arranged on the slide rail, and the vertical part of the backrest extends upward to one side of the seat cushion.

[0015] The moving assembly includes an adjusting screw, a driven pulley, a driving pulley, a multi-wedge belt and a first motor, wherein the adjusting screw is rotatably arranged on a mounting box, the first motor is arranged on the mounting box, the driven pulley is coaxially arranged on one end of the adjusting screw, the driving pulley is coaxially arranged on an output end of the first motor, and the multi-wedge belt is sleeved on the driven pulley and the driving pulley;

[0016] The axial direction of the adjusting screw is consistent with the extending direction of the slide rail. The adjusting screw is penetrated on the sliding seat and is threadedly connected with the sliding seat.

[0017] The moving assembly also includes a support, a pressure sensor and a roller. The support is arranged in the installation box, the roller is rotatably arranged on the support, the pressure sensor is arranged below the roller, and the horizontal part of the backrest passes above the roller.

[0018] The vertical portion of the backrest is provided with a cushion, and the cushion is sleeved on the vertical portion of the backrest from top to bottom;

[0019] A plurality of slots are sequentially arranged on a side of the vertical part of the backrest away from the seat cushion from top to bottom, an adjustment rod is rotatably arranged in the back cushion, the rotation direction of the adjustment rod is toward the vertical direction, and the suspension end of the adjustment rod is clamped in one of the slots;

[0020] A locking screw is passed through the suspended end of the adjusting rod, and a through hole is provided at each of the slots. A threaded hole is provided on the side of the backrest away from the locking screw. The locking screw passes through the adjusting rod and the through hole at the corresponding slot in sequence, and is threadedly connected to the cushion through the threaded hole.

[0021] The armrest mechanism includes a fixing part, a sleeve, a connecting rod and an armrest assembly. The fixing part is arranged on one side of the seat cushion, the connecting rod is L-shaped, the sleeve is arranged at the end of the horizontal part of the connecting rod, the sleeve is sleeved on the fixing part, and the armrest assembly is arranged on the top of the vertical part of the connecting rod.

[0022] The armrest assembly comprises an armrest body and an adjustment sleeve arranged at the bottom of the armrest body, the adjustment sleeve is sleeved on a connecting rod, a second adjustment hole extending in a vertical direction is arranged on the connecting rod, a plurality of first limit grooves are arranged on both sides of the second adjustment hole in sequence from top to bottom, a second fixing hole is arranged on the adjustment sleeve, an adjustment button is passed through the second fixing hole, clamping strips are arranged on both sides of the adjustment button, the adjustment button passes through the second adjustment hole, and two clamping strips are respectively clamped at two oppositely arranged first limit grooves;

[0023] The adjusting sleeve is also provided with a second elastic member, and the second elastic member is used to make the adjusting button move toward one side of the adjusting sleeve.

[0024] The armrest body comprises an armrest seat, a first slider, a second slider and an armrest upper cover, wherein the armrest seat is arranged at the top of the adjustment sleeve, the first slider is horizontally slidably arranged at the top of the armrest seat, the second slider is horizontally slidably arranged on the first slider, and the armrest upper cover is arranged on the second slider;

[0025] The first slider and the second slider both slide along a straight line, the sliding directions of the first slider and the second slider are perpendicular, and the second slider slides in a direction close to or away from the seat cushion.

[0026] The armrest body also includes a rotating block horizontally rotatably arranged on the top of the second slider, the armrest cover is arranged on the rotating block, both ends of the rotating block are provided with sliding holes, both sliding holes are slidably provided with heads, and the ends of the two heads close to each other are provided with a third elastic member;

[0027] The ends of the two plugs that are away from each other are both arc-shaped, and the second sliding block is provided with second limiting grooves at both ends of the rotating block. The second limiting grooves are composed of a plurality of grooves arranged in sequence along the horizontal direction, and the plug is clamped in one of the grooves.

[0028] To summarize, the user sits on the seat cushion and both arms can be placed on the two armrest mechanisms; during use, the moving component can be used to drive the backrest to move toward or away from the seat cushion so that the backrest fits the back of the human body, while the rhythm component enables the user to perform rhythm in the vertical direction, and the lifting component adjusts the height of the seat cushion. In this way, more functions are provided to meet more user needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0030] Figure 2 It is a schematic diagram of the structure explosion of the rhythmic component and the lifting component in the embodiment of the present invention;

[0031] Figure 3 is a schematic diagram of an exploded structure of a backrest and a moving assembly in an embodiment of the present invention;

[0032] Figure 4 is a schematic structural diagram of a backrest in an embodiment of the present invention;

[0033] Figure 5 is a schematic structural diagram of a cushion in an embodiment of the present invention;

[0034] Figure 6 is a schematic diagram of an exploded structure of a cushion in an embodiment of the present invention;

[0035] Figure 7 is a schematic cross-sectional view of the structure of a cushion in an embodiment of the present invention;

[0036] Figure 8 is a schematic structural diagram of an armrest mechanism in an embodiment of the present invention;

[0037] Fig. 9 yes Figure 8 A schematic diagram of the structure enlargement at the center A;

[0038] Fig.10 : is a schematic diagram of the structure explosion of the handrail body in an embodiment of the present invention;

[0039] Fig.11 It is a schematic diagram of the internal structure of the handrail main body in an embodiment of the present invention.

[0040] Figure numerals: 1, cushion; 11, installation box; 12, slide rail; 13, human body induction switch; 2, base; 3, rhythm component; 31, movable frame; 32, rotating shaft; 33, swing sleeve; 4, lifting component; 41, fixed sleeve; 411, first fixed hole; 42, movable sleeve; 421, first adjustment hole; 43, turntable; 5, backrest; 51, sliding seat; 52, slot; 53, through hole; 6, moving component; 61, adjusting screw; 62, driven pulley; 63, driving pulley; 64, multi-wedge belt; 65, first motor; 66, support; 67, pressure sensor; 68, roller ;7. Cushion;71. Adjustment rod;72. Locking screw;73. Threaded hole;74. First elastic member;75. ​​Rear cover;8. Armrest mechanism;81. Fixing member;82. Sleeve;83. Connecting rod;831. Second adjustment hole;832. First limiting groove;84. Adjustment sleeve;841. Second fixing hole;842. Adjustment button;843. Clip;844. Second elastic member;85. Armrest seat;86. First slider;87. Second slider;871. Second limiting groove;88. Armrest upper cover;89. Rotating block;891. Header;892. Third elastic member;9. Headrest. DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0042] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product or equipment comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0043] The following is combined with Figure 1-11 The present invention is further described in detail.

[0044] Reference Figure 1-4 , a multifunctional seat, comprising: a base mechanism, a seat cushion 1, a backrest mechanism, an armrest mechanism 8 and a headrest mechanism;

[0045] The base mechanism includes a base 2, a rhythm component 3 and a lifting component 4. The rhythm component 3 and the lifting component 4 are both arranged on the base 2. The rhythm component 3 is used to drive the seat cushion 1 to perform rhythm in the vertical direction, and the lifting component 4 is used to adjust the height of the seat cushion 1.

[0046] The backrest mechanism includes a backrest 5 and a moving assembly 6. The backrest 5 is slidably arranged on the seat cushion 1. The moving assembly 6 is used to drive the backrest 5 to move toward or away from the seat cushion 1.

[0047] Two armrest mechanisms 8 are provided, and the two armrest mechanisms 8 are respectively provided on both sides of the seat cushion 1 .

[0048] Based on the above structure, the user sits on the seat cushion 1, and both arms can be placed on the two armrest mechanisms 8; during use, the moving component 6 can drive the backrest 5 to move toward or away from the side of the seat cushion 1, so that the backrest fits the back of the human body, and the rhythm component 3 enables the user to perform rhythm in the vertical direction, and the lifting component adjusts the height of the seat cushion 1. In this way, more functions are provided to meet more usage needs of users.

[0049] like Figure 2 As shown, the rhythm component 3 includes a movable frame 31, a rotating shaft 32, a cam, a swing sleeve 33 and a driving member. The movable frame 31 is arranged above the base 2 through a connecting member, the rotating shaft 32 is horizontally rotatably arranged on the base 2, the cam is sleeved on the rotating shaft 32, and the swing sleeve 33 is sleeved on the cam. The swing sleeve 33 is circumferentially connected to the movable frame 31, and the driving member is used to drive the rotating shaft 32 to rotate. In this way, the rotating shaft 32 is driven by the driving member to rotate, so that the cam rotates, and then the swing sleeve 33 is displaced in the vertical direction, and then the movable frame 31 is driven to perform vertical rhythmic motion, so that the user on the cushion 1 performs rhythmic motion. The driving member can be composed of a motor, a driving wheel coaxially connected to the output end of the motor, a driven wheel sleeved on the rotating shaft 32, and a synchronous belt sleeved on the driving wheel and the driven wheel.

[0050] like Figure 2As shown, the lifting assembly 4 includes a fixed sleeve 41, a movable sleeve 42, an insertion rod and a turntable 43. The fixed sleeve 41 is arranged on the top of the movable frame 31, the movable sleeve 42 is inserted into the fixed sleeve 41 from top to bottom, the turntable 43 is arranged at the top of the movable sleeve 42, and the seat cushion 1 is arranged on the top of the turntable 43; a first fixing hole 411 is arranged on the ring side of the fixed sleeve 41, and a plurality of first adjustment holes 421 are arranged on the movable sleeve 42 in the vertical direction. The insertion rod is inserted into the first fixing hole 411 and one of the first adjustment holes 421. In this way, by inserting the insertion rod into the first adjustment holes 421 at different heights, the movable sleeve 42 is at different heights, and then the turntable 43 is at different heights, so as to achieve the purpose of adjusting the height of the seat cushion 1, and the setting of the turntable 43 allows the seat cushion 1 to rotate horizontally, so that the user can sit on the seat cushion 1, turn around, and adjust the angle.

[0051] like Figure 2-Figure 4As shown, a mounting box 11 is provided at the bottom of the seat cushion 1, and a slide rail 12 is horizontally provided in the mounting box 11; the backrest 5 is L-shaped, and a sliding seat 51 is provided at the horizontal part of the backrest 5, and the sliding seat 51 is slidably provided on the slide rail 12, and the vertical part of the backrest 5 extends upward to one side of the seat cushion 1; the moving assembly 6 includes an adjusting screw 61, a driven pulley 62, a driving pulley 63, a multi-wedge belt 64, a first motor 65, a support 66, a pressure sensor 67 and a roller 68, the adjusting screw 61 is rotatably provided on the mounting box 11, and the first motor 65 is provided on the mounting box 1 1, the driven pulley 62 is coaxially arranged at one end of the adjusting screw 61, the driving pulley 63 is coaxially arranged at the output end of the first motor 65, and the multi-wedge belt 64 is sleeved on the driven pulley 62 and the driving pulley 63; the axial direction of the adjusting screw 61 is consistent with the extension direction of the slide rail 12, the adjusting screw 61 is penetrated on the sliding seat 51, and is threadedly connected with the sliding seat 51; the support 66 is arranged in the installation box 11, and the roller 68 is rotatably arranged on the support 66 (the roller 68 can be fixed on the support 66 by a flexible ring, or by opening a vertically extending groove on the support 66 The waist groove extending in the vertical direction allows the roller 68 to move slightly in the vertical direction), the pressure sensor 67 is arranged below the roller 68 (roller 68), the horizontal part of the backrest 5 passes above the roller 68, and a human body sensing switch 12 can also be arranged on the seat cushion 1. In this way, when the user sits on the seat cushion 1, the human body sensing switch 22 detects that someone is sitting on the seat cushion 1, so that the first motor 65 drives the adjusting screw 61 to rotate, so that the backrest 5 moves to one side of the seat cushion 1 (the user's back). When the backrest 5 is attached to the human body, resistance will be generated, and the backrest 5 The backrest 5 will be slightly deformed, and the horizontal part of the backrest 5 will be pressed on the roller 68 at the bottom, causing the roller 68 to apply greater pressure to the pressure sensor 67 at the bottom. The running direction and stop position of the backrest 5 are determined based on the pressure change detected by the pressure sensor 67 (for example, a reference value is set (the pressure value of the pressure sensor 67 when the force applied by the backrest 5 to the user is most comfortable). If the value of the pressure sensor 67 is smaller than the reference value, the backrest 5 moves toward the side of the seat cushion 1; if the value of the pressure sensor 67 is larger than the reference value, the backrest 5 moves away from the seat cushion 1).

[0052] like Figure 5-Figure 7 As shown, the vertical portion of the backrest 5 is provided with a cushion 7, and the cushion 7 is sleeved on the vertical portion of the backrest 5 from top to bottom. Specifically, a detachable rear cover plate 75 can be provided on the back of the cushion 7, and is sleeved on the vertical portion of the backrest 5 through the installation space between the cushion 7 and the rear cover plate 75;

[0053] A plurality of slots 52 are sequentially arranged from top to bottom on one side of the vertical portion of the backrest 5 away from the seat cushion 1. An adjusting rod 71 is rotatably arranged in the back cushion 7. The rotation direction of the adjusting rod 71 faces the vertical direction. The suspended end of the adjusting rod 71 is clamped in one of the slots 52. In this way, one end of the adjusting rod 71 is rotatably arranged on the rear cover plate 75 of the back cushion 7, and a clamping head adapted to the slot 52 is arranged at the other end. When the clamping head is clamped in the slot 52, the height of the back cushion 7 is limited. That is to say, when the clamping head is clamped in different slots 52, the back cushion 7 is at different heights, and the height of the back cushion 7 is adjusted to adapt to the use of people of different heights.

[0054] The locking screw 72 is passed through the suspended end of the adjustment rod 71, and the through holes 53 are provided at the slots 52. The cushion 7 is provided with a threaded hole 73 on the side of the backrest 5 away from the locking screw 72. The locking screw 72 passes through the adjustment rod 71 and the through holes 53 at the corresponding slots 52 in sequence, and is threadedly connected to the cushion 7 through the threaded hole 73; a first elastic member 74 is provided on the side of the suspended end of the adjustment rod 71 away from the backrest 5. In this way, the locking screw 72 passes through the adjustment rod 71 and the backrest 5 and is threadedly connected to the cushion 7 to lock the clamping head of the adjustment rod 71 in the slot 51, thereby locking the position of the cushion 7. The setting of the first elastic member 74 enables, after the locking screw 72 is removed, the pulling force of the first elastic member 74 causes the clamping head of the adjustment rod 71 to move to the side away from the backrest 5, thereby allowing the position of the cushion 7 to be adjusted.

[0055] like Figure 8-Figure 11 As shown, the armrest mechanism 8 includes a fixing member 81, a sleeve 82, a connecting rod 83 and an armrest assembly. The fixing member 81 is arranged on one side of the seat cushion 1, the connecting rod 83 is L-shaped, the sleeve 82 is arranged at the end of the horizontal part of the connecting rod 83, the sleeve 82 is sleeved on the fixing member 81, and the armrest assembly is arranged on the top of the vertical part of the connecting rod 83, and the armrest assembly is fixed to one side of the seat cushion 1 by the fixing member 81.

[0056] The armrest assembly specifically includes an armrest body and an adjustment sleeve 84 arranged at the bottom of the armrest body, the adjustment sleeve 84 is sleeved on the connecting rod 83, the connecting rod 83 is provided with a second adjustment hole 831 extending in the vertical direction, and a plurality of first limit grooves 832 are sequentially arranged on both sides of the second adjustment hole 831 from top to bottom, a second fixing hole 841 is provided on the adjustment sleeve 84, an adjustment button 842 is passed through the second fixing hole 841, and clamping strips 843 are arranged on both sides of the adjustment button 842, the adjustment button 842 passes through the second adjustment hole 831, and the two clamping strips 843 are respectively clamped at two oppositely arranged first limit grooves 832; the adjustment sleeve 84 is also provided with a second elastic member 844 (preferably a spring or a spring sheet), and the second elastic member 844 It is used to move the adjustment button 842 toward one side of the adjustment sleeve 84. In this way, by plugging and unplugging the adjustment button 842 to different first limit grooves 832, the adjustment sleeve 84 can be at different heights, thereby achieving the height adjustment of the armrest body. Specifically, by plugging and unplugging the adjustment button 842, the clamping strip 843 is staggered from the first limit groove 832, so that the adjustment button 842 can slide in the second adjustment hole 831, thereby adjusting the height of the adjustment sleeve 84. When the clamping strip 843 is inserted into the first limit groove 832, the height of the adjustment sleeve 84 is fixed. When no external force is applied to the adjustment button 842, the elastic force of the second elastic member 844 causes the adjustment button 842 to move toward one side of the adjustment sleeve 84, so that the clamping strip 843 is clamped in the first limit groove 832.

[0057] In order to improve the flexibility of the armrest body, the armrest body specifically includes an armrest seat 85, a first slider 86, a second slider 87 and an armrest upper cover 88. The armrest seat 85 is arranged at the top of the adjustment sleeve 84, the first slider 86 is horizontally slidably arranged on the top of the armrest seat 85, the second slider 87 is horizontally slidably arranged on the first slider 86, and the armrest upper cover 88 is arranged on the second slider 87; and the first slider 86 and the second slider 87 both slide along a straight line, the sliding directions of the first slider 86 and the second slider 87 are perpendicular, and the second slider 87 moves towards or away from The seat cushion 1 slides in the direction of the armrest cover 88, so that the armrest upper cover 88 can move in four directions: front and back (the first slider 86 moves relative to the armrest seat 85) and left and right (the second slider 87 moves relative to the first slider 86), to meet more diverse needs of users, and damping components are provided between the second slider 87 and the first slider 86, and between the first slider 86 and the armrest seat 85, so that the sliding of the first slider 86 and the second slider 87 provides friction, so that when no external force is applied to the armrest upper cover 88 or a small thrust is applied, the first slider 86 and the second slider 87 will not slide.

[0058] In order to further improve the flexibility of the armrest body, the armrest body also includes a rotating block 89 horizontally rotatably arranged on the top of the second slider 87, the armrest cover 88 is arranged on the rotating block 89, both ends of the rotating block 89 are provided with sliding holes, both sliding holes are slidably provided with top heads 891, and the ends of the two top heads 891 close to each other are provided with a third elastic member 892; the ends of the two top heads 891 away from each other are both arc-shaped, and the second slider 87 is provided with second limiting grooves 871 at both ends of the rotating block 89, and the second limiting grooves 871 are composed of a plurality of The armrest cover 88 is composed of grooves arranged in sequence in the horizontal direction, and the top head 891 is clamped in one of the grooves. In this way, the armrest upper cover 88 can be rotated by rotating the rotating block 89 relative to the second sliding block 87, so as to meet the user's more diverse usage needs. When a rotational force is applied to the armrest upper cover 88, the two top heads 891 are squeezed by the groove wall of the second limiting groove 871, overcome the elastic force of the third elastic member 892, and retract into the rotating block 89. When entering another groove, the elastic force of the third elastic member 892 causes the top head 891 to pop out, thereby completing the limitation of the rotating block 89.

[0059] Further optimization is that Figure 1 As shown, the headrest mechanism includes a headrest 9, which is inserted into the backrest 5 or the cushion 7 through a sliding rod. The height of the headrest 9 can be adjusted to meet the needs of users of different heights.

[0060] As a further optimization, a magnetic attraction component can be provided on the armrest seat 2, so that the seat remote control (a magnetic attraction block or a magnetically attractable metal is provided in the remote control) can be magnetically attracted to the bottom of the armrest seat 85, thereby further improving the convenience of use.

[0061] In summary: the user sits on the seat cushion 1, and both arms can be placed on the two armrest mechanisms 8; during use, the moving component 6 can drive the backrest 5 to move toward or away from the side of the seat cushion 1, so that the backrest fits the back of the human body, and the rhythm component 3 enables the user to perform rhythm in the vertical direction, and the lifting component adjusts the height of the seat cushion 1. In this way, more functions are provided to meet more user needs.

[0062] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A multifunctional seat, characterized in that: include: A base mechanism, a seat cushion (1), a backrest mechanism and an armrest mechanism (8); The base mechanism comprises a base (2), a rhythmic component (3) and a lifting component (4); the rhythmic component (3) and the lifting component (4) are both arranged on the base (2); the rhythmic component (3) is used to drive the seat cushion (1) to perform rhythmic movement in a vertical direction; and the lifting component (4) is used to adjust the height of the seat cushion (1); The backrest mechanism comprises a backrest (5) and a moving assembly (6), wherein the backrest (5) is slidably arranged on the seat cushion (1), and the moving assembly (6) is used to drive the backrest (5) to move toward or away from the seat cushion (1); Two armrest mechanisms (8) are provided, and the two armrest mechanisms (8) are respectively provided on both sides of the seat cushion (1).

2. A multifunctional seat according to claim 1, characterized in that: The rhythm assembly (3) comprises a movable frame (31), a rotating shaft (32), a cam, a swing sleeve (33) and a driving member, wherein the movable frame (31) is arranged above the base (2), the rotating shaft (32) is arranged on the base (2) for horizontal rotation, the cam is sleeved on the rotating shaft (32), the swing sleeve (33) is sleeved on the cam, the swing sleeve (33) is connected to the movable frame (31) in an annular direction, and the driving member is used for driving the rotating shaft (32) to rotate; The lifting assembly (4) comprises a fixed sleeve (41), a movable sleeve (42), an insertion rod and a rotating disk (43); the fixed sleeve (41) is arranged on the top of the movable frame (31); the movable sleeve (42) is inserted into the fixed sleeve (41) from top to bottom; the rotating disk (43) is arranged on the top of the movable sleeve (42); and the seat cushion (1) is arranged on the top of the rotating disk (43); The fixing sleeve (41) is provided with a first fixing hole (411) on the ring side, the movable sleeve (42) is provided with a plurality of first adjustment holes (421) in the vertical direction, and the insertion rod is inserted into the first fixing hole (411) and one of the first adjustment holes (421).

3. A multifunctional seat according to claim 1, characterized in that: A mounting box (11) is provided at the bottom of the seat cushion (1), and a slide rail (12) is horizontally provided in the mounting box (11); The backrest (5) is L-shaped, and a sliding seat (51) is provided on the horizontal part of the backrest (5). The sliding seat (51) is slidably arranged on a slide rail (12), and the vertical part of the backrest (5) extends upward to one side of the seat cushion (1).

4. A multifunctional seat according to claim 3, characterized in that: The moving assembly (6) comprises an adjusting screw (61), a driven pulley (62), a driving pulley (63), a multi-wedge belt (64) and a first motor (65); the adjusting screw (61) is rotatably arranged on the mounting box (11); the first motor (65) is arranged on the mounting box (11); the driven pulley (62) is coaxially arranged on one end of the adjusting screw (61); the driving pulley (63) is coaxially arranged on the output end of the first motor (65); and the multi-wedge belt (64) is sleeved on the driven pulley (62) and the driving pulley (63); The axial direction of the adjusting screw (61) is consistent with the extension direction of the slide rail (12). The adjusting screw (61) is inserted into the slide seat (51) and is threadedly connected to the slide seat (51).

5. A multifunctional seat according to claim 4, characterized in that: The moving assembly (6) further comprises a support (66), a pressure sensor (67) and a roller (68); the support (66) is arranged in the installation box (11); the roller (68) is rotatably arranged on the support (66); the pressure sensor (67) is arranged below the roller (68); and the horizontal part of the backrest (5) passes above the roller (68).

6. A multifunctional seat according to claim 1, characterized in that: The vertical portion of the backrest (5) is provided with a cushion (7), and the cushion (7) is sleeved on the vertical portion of the backrest (5) from top to bottom; A plurality of slots (52) are sequentially arranged from top to bottom on a side of the vertical portion of the backrest (5) away from the seat cushion (1); an adjustment rod (71) is rotatably arranged in the back cushion (7); the rotation direction of the adjustment rod (71) is toward the vertical direction; and a suspension end of the adjustment rod (71) is clamped in one of the slots (52); A locking screw (72) is passed through the suspended end of the adjusting rod (71), and a through hole (53) is provided at each of the slots (52). A threaded hole (73) is provided on the side of the backrest (5) away from the locking screw (72). The locking screw (72) passes through the adjusting rod (71) and the through hole (53) at the corresponding slot (52) in sequence, and is threadedly connected to the cushion (7) through the threaded hole (73).

7. The multifunctional seat according to claim 1, characterized in that: The armrest mechanism (8) comprises a fixing member (81), a sleeve (82), a connecting rod (83) and an armrest assembly, wherein the fixing member (81) is arranged on one side of the seat cushion (1), the connecting rod (83) is L-shaped, the sleeve (82) is arranged at the end of the horizontal part of the connecting rod (83), the sleeve (82) is sleeved on the fixing member (81), and the armrest assembly is arranged at the top of the vertical part of the connecting rod (83).

8. A multifunctional seat according to claim 7, characterized in that: The armrest assembly comprises an armrest body and an adjustment sleeve (84) arranged at the bottom of the armrest body, the adjustment sleeve (84) is sleeved on the connecting rod (83), the connecting rod (83) is provided with a second adjustment hole (831) extending in the vertical direction, and a plurality of first limiting grooves (832) are sequentially arranged on both sides of the second adjustment hole (831) from top to bottom, the adjustment sleeve (84) is provided with a second fixing hole (841), an adjustment button (842) is passed through the second fixing hole (841), and clamping strips (843) are arranged on both sides of the adjustment button (842), the adjustment button (842) passes through the second adjustment hole (831), and the two clamping strips (843) are respectively clamped at two oppositely arranged first limiting grooves (832); The adjustment sleeve (84) is also provided with a second elastic member (844), and the second elastic member (844) is used to move the adjustment button (842) toward one side of the adjustment sleeve (84).

9. A multifunctional seat according to claim 8, characterized in that: The armrest body comprises an armrest seat (85), a first slider (86), a second slider (87) and an armrest upper cover (88); the armrest seat (85) is arranged at the top of the adjustment sleeve (84); the first slider (86) is horizontally slidably arranged at the top of the armrest seat (85); the second slider (87) is horizontally slidably arranged on the first slider (86); and the armrest upper cover (88) is arranged on the second slider (87); The first slider (86) and the second slider (87) both slide along a straight line, the sliding directions of the first slider (86) and the second slider (87) are perpendicular, and the second slider (87) slides in a direction approaching or moving away from the seat cushion (1).

10. A multifunctional seat according to claim 9, characterized in that: The armrest body also includes a rotating block (89) which is horizontally rotatably arranged on the top of the second sliding block (87); the armrest upper cover (88) is arranged on the rotating block (89); sliding holes are provided at both ends of the rotating block (89); a top head (891) is slidably arranged at the two sliding holes; and a third elastic member (892) is provided at one end of the two top heads (891) which are close to each other; The ends of the two top heads (891) that are away from each other are both arc-shaped. The second sliding block (87) is provided with second limiting grooves (871) at both ends of the rotating block (89). The second limiting groove (871) is composed of a plurality of grooves arranged in sequence along the horizontal direction. The top head (891) is clamped in one of the grooves.

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