A zero-gravity forwardly moving and angularly adjustable seating system

Abstract

The application discloses a zero-gravity forward-moving and angle-adjustable seat system, and relates to the technical field of seats.The zero-gravity forward-moving and angle-adjustable seat system comprises a seat body, a mounting mechanism arranged at the bottom of the seat body, an adjusting mechanism for connecting the seat body and the mounting mechanism, and an adjusting assembly arranged on the seat body and used for adapting to different people.The seat body is connected and fixed with the mounting mechanism through the adjusting mechanism, and the adjusting mechanism is arranged for adjusting the angle of the seat body.When the zero-gravity forward-moving seat is used, the seat angle is adjusted by the adjusting mechanism, the center of gravity of the human body is moved forward, the pressure of the back, neck and waist is relieved, the body is in a relaxed state, and the comfort of the seat is greatly improved.The angle of the backrest and the position of the seat plate can be simultaneously adjusted by a driving motor, and the seat plate is moved forward to the backrest.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of seats, more particularly, to a zero-gravity forward-moving seat system with angle adjustment. BACKGROUND

[0002] Zero-gravity forward-moving chairs are special chairs designed to tilt the human body to a near-horizontal position in a short time, making people feel as if they are in a zero-gravity state, which can reduce the burden on the body and help relax the body and mind.

[0003] The main structure of a zero-gravity forward-moving seat includes a seat frame, a seat cushion, a backrest, armrests, a rear waist support, and a front leg support. Among them, the seat frame and the seat cushion are the main load-bearing structures of the seat, the backrest and the armrests can provide support for the human body, and the rear waist support and the front leg support are the key components for realizing the forward-moving function of the seat. When using a zero-gravity forward-moving seat, the center of gravity of the human body will move forward, relieving the pressure on the back, neck, and waist, and the body will be in a relaxed state, which can help improve sleep, relieve muscle fatigue, and improve blood circulation. Therefore, zero-gravity forward-moving seats are widely used in offices, homes, nursing homes, gyms, and other places, and are popular with people.

[0004] However, there are some problems when using zero-gravity forward-moving chairs. One of the main problems is that existing zero-gravity chairs mainly use the following methods to adjust the angle:

[0005] 1. Manual adjustment: Most zero-gravity adjustable chairs have manual adjustment buttons or levers that can be used to adjust the angle and position of the chair with your hands. These buttons are usually located on the side or below the chair.

[0006] 2. Electric adjustment: Some zero-gravity adjustable chairs are equipped with electric adjustment functions that can control the angle and position of the chair by pressing a button or using a remote control. This method is more convenient and more accurate.

[0007] It should be noted that when using a zero-gravity adjustable chair, you should choose a chair that suits your height and weight to achieve the best adjustment effect. When the body is in a tilted state, the weight of the head and waist will increase, increasing the pressure on the cervical and lumbar spine, which may cause discomfort or even damage to the cervical and lumbar spine over a long period of time. Therefore, how to choose a suitable seat is also very important. SUMMARY

[0008] The present application provides a zero-gravity forward-moving seat system with angle adjustment, which aims to solve the problems in the prior art.

[0009] To solve the above problems, the present application adopts the following technical solutions:

[0010] The seat system is characterized in that the seat body comprises a seat plate and a backrest connected to one side of the seat plate, the bottom of the seat plate is provided with a support frame for improving the structural strength of the seat plate, the support frame comprises a rectangular support and a plurality of X-shaped connecting rods connecting four corners of the rectangular support, the connecting rods are connected to a fixing seat through a connecting piece below the staggered position of the connecting rods, the fixing seat is provided with a threaded hole, a screw rod is arranged in the threaded hole in a threaded manner, and guide blocks are symmetrically arranged on both sides of the fixing seat below the rectangular support.

[0011] As a preferred scheme of the present application, the connecting piece comprises a connecting block fixedly connected below the connecting rod, the connecting block is provided with a long hole, and a limiting rod is arranged in the long hole in a sliding manner.

[0012] As a preferred scheme of the present application, the connecting block is provided with a limiting sliding groove in communication with the long hole on both sides of the long hole, the limiting rod is provided with a limiting protrusion slidingly connected in the limiting sliding groove on both sides of the limiting rod, the limiting rod is connected to a traction rod, and the other end of the traction rod is fixedly connected to the fixing seat.

[0013] As a preferred scheme of the present application, the connecting block is provided with a limiting sliding groove in communication with the long hole on both sides of the long hole, the limiting rod is provided with a limiting protrusion slidingly connected in the limiting sliding groove on both sides of the limiting rod, the limiting rod is connected to a traction rod, and the other end of the traction rod is fixedly connected to the fixing seat.

[0014] As a preferred scheme of the present application, the connecting block is provided with a limiting sliding groove in communication with the long hole on both sides of the long hole, the limiting rod is provided with a limiting protrusion slidingly connected in the limiting sliding groove on both sides of the limiting rod, the limiting rod is connected to a traction rod, and the other end of the traction rod is fixedly connected to the fixing seat.

[0015] As a preferred scheme of the present application, the connecting block is provided with a limiting sliding groove in communication with the long hole on both sides of the long hole, the limiting rod is provided with a limiting protrusion slidingly connected in the limiting sliding groove on both sides of the limiting rod, the limiting rod is connected to a traction rod, and the other end of the traction rod is fixedly connected to the fixing seat.

[0016] As a preferred scheme of the present application, the adjusting assembly comprises clamping assemblies arranged on both sides of the seat plate, the clamping assembly comprises a half-circular supporting plate, a hinged seat arranged on one side of the supporting plate, the side surface of the seat plate is connected with the hinged seat, the hinged seat is arranged on the lower side of the seat plate, the hinged seat comprises an axle seat fixed on the seat plate, a connecting shaft is rotatably connected on the axle seat, gears are arranged on both ends of the two connecting shafts, and the two gears are connected through a rack.

[0017] As a preferred scheme of the present application, bearings are arranged on both ends of the screw rod, which are used for fixing the screw rod, and the bearings are fixed on the supporting plate.

[0018] As a preferred scheme of the present application, a locking mechanism is arranged on the mounting shaft.

[0019] As a preferred scheme of the present application, the locking mechanism comprises a ratchet wheel arranged on the mounting shaft, a control box arranged on one side of the ratchet wheel for controlling the ratchet wheel, an opening arranged on the control box, a pawl rotatably arranged in the control box, the pawl penetrating through the opening and matched with the ratchet wheel to prevent the ratchet wheel from rotating, a spring arranged in the control box, a spring column arranged on the side surface of the pawl, one end of the spring fixed on the spring column and the other end abutting against the control box, and a prying block arranged on the pawl.

[0020] Compared with the prior art, the present application has the following advantages:

[0021] (1) The guide block moves along the guide rail, the T-shaped block arranged on the guide rail is used for limiting, the guide rail comprises a horizontal section and an inclined section, the guide block can move along the horizontal section and the inclined section, when the guide block moves along the horizontal section, the seat plate is in a horizontal state, when the guide block moves along the inclined section, the seat plate is in an inclined state, it should be noted that in order to prevent the connecting piece from affecting the upward movement of the guide block when the screw rod drives the fixed seat to move, the connecting piece can be controlled, the long hole is arranged on the connecting block, the limiting rod is arranged in the long hole, the limiting rod is slidably arranged in the long hole, the limiting grooves are arranged on both sides of the long hole and communicated with the long hole, the limiting protrusions are slidably arranged in the limiting grooves, the traction rod is connected with the limiting rod, and the other end of the traction rod is fixedly connected with the fixed seat, when the guide block moves along the inclined section, the seat plate moves upward, the limiting rod can be slidably arranged in the long hole and can be controlled.

[0022] (2) the driving motor is arranged, the rotation of the mounting shaft can be driven, the backrest is connected with the mounting shaft, so the rotation of the backrest can be driven, the mounting shaft drives the rotation of the first bevel gear, the first bevel gear drives the rotation of the second bevel gear, the screw rod can rotate, the screw rod drives the movement of the fixed seat, the connecting plate is arranged, the support plate is connected with the backrest, the angle of the backrest is adjusted, so the angle of the backrest and the position of the seat plate can be adjusted by the driving motor, the seat plate moves forward.

[0023] (3) the pawl can rotate, then the ratchet on the mounting shaft is locked and fixed, the reverse rotation of the mounting shaft is prevented, the spring is arranged, the pawl is reset, the pawl is arranged with the lever, the pawl is separated from the ratchet by swinging the lever, the locked state is released, the backrest and the seat plate are adjusted by the driving motor. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 it is the three-dimensional structure schematic diagram of the present application;

[0025] Figure 2 it is the local three-dimensional structure schematic diagram of the present application Figure One ;

[0026] Figure 3 it is the local three-dimensional structure schematic diagram of the present application Figure Two ;

[0027] Figure 4 it is the connecting plate structure schematic diagram of the present application;

[0028] Figure 5 it is the local three-dimensional structure schematic diagram of the present application Figure Three ;

[0029] Figure 6 it is the limiting sliding groove structure schematic diagram in the embodiment of the present application;

[0030] Figure 7 it is the clamping assembly structure schematic diagram in the embodiment of the present application;

[0031] Figure 8 it is the bevel gear set structure schematic diagram of the present application;

[0032] Figure 9 it is the support frame structure schematic diagram of the present application;

[0033] Figure 10 it is the guide rail structure schematic diagram of the present application;

[0034] Figure 11 it is the locking mechanism structure schematic diagram of the present application.

[0035] Mark explanation in the drawing:

[0036] 1, seat body; 101, seat plate; 102, backrest; 2, mounting mechanism; 201, guide rail; 202, T-shaped block; 203, boss; 204, bearing groove; 205, bearing; 206, rotating rod; 207, horizontal section; 208, inclined section; 209, arc section; 3, adjusting mechanism; 301, fixed lug; 302, shaft hole; 303, mounting shaft; 304, first bevel gear; 305, drive motor; 306, second bevel gear; 307, adapter plate; 308, strip hole; 4, adjusting assembly; 5, support frame; 501, rectangular support; 502, insertion rod; 6, connecting piece; 601, connecting block; 602, long hole; 603, limiting rod; 604, limiting sliding groove; 605, limiting lug; 606, traction rod; 7, fixed seat; 8, threaded hole; 9, screw; 901, bearing seat; 10, guide block; 11, support plate; 12, clamping assembly; 1201, support plate; 1202, hinged seat; 1203, shaft seat; 1204, connecting shaft; 1205, gear; 1206, rack; 13, locking mechanism; 1301, ratchet; 1302, control box; 1303, opening; 1304, pawl; 1305, spring; 1306, spring post; 1307, prying block. Embodiment

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Embodiment

[0038] Please refer to Figures 1-7 A zero-gravity forward-moving and angle-adjustable seat system, comprising a seat body 1, a mounting mechanism 2 arranged at the bottom of the seat body 1, and an adjusting mechanism 3 connecting the seat body 1 and the mounting mechanism 2, and further comprising an adjusting assembly 4 on the seat body 1 for adapting to different people.

[0039] The seat body 1 is connected and fixed with the mounting mechanism 2 through the adjusting mechanism 3, and the adjusting mechanism 3 is arranged to adjust the angle of the seat body 1. When using the zero-gravity forward-moving seat, the adjusting mechanism 3 controls the seat angle, so that the center of gravity of the human body is moved forward, the pressure on the back, neck and waist is relieved, the body is in a relaxed state, and the comfort of the seat is greatly improved.

[0040] In the prior art, when the angle of the seat body 1 is adjusted, the seat plate 101 is generally horizontally moved forward or backward, and the backrest 102 is adjusted by adjusting the rotating angle. However, after the angle of the backrest 102 is adjusted, if the seat plate 101 is still in the horizontal state, the comfort of the waist is affected. Therefore, in order to improve the comfort of the seat system, the angle of the seat plate 101 and the backrest 102 is adjusted by the following technical scheme.

[0041] Specifically, the seat body 1 comprises a seat plate 101 and a backrest 102 rotationally connected to one side of the seat plate 101. The bottom of the seat plate 101 is provided with a support frame 5 for improving the structural strength of the seat plate 101. The support frame 5 comprises a rectangular support 501 and a plug rod 502 connected to four corners of the rectangular support 501 in an X shape. The staggered position of the plug rod 502 is connected to a fixing seat 7 through a connecting piece 6 below. Threaded holes 8 are formed in the fixing seat 7. A threaded rod 9 is screwed into the threaded holes 8. Guide blocks 10 are symmetrically arranged on both sides of the fixing seat 7 below the rectangular support 501.

[0042] Firstly, the support frame 5 arranged below the seat plate 101 improves the structural strength of the seat plate 101. The threaded rod 9 is screwed into the threaded holes 8 of the fixing seat 7, which drives the movement of the fixing seat 7 and the seat plate 101. It should be noted that the guide blocks 10 can limit the movement.

[0043] The connecting piece 6 comprises a connecting block 601 fixedly connected to the plug rod 502 below. A long hole 602 is formed in the connecting block 601. A limiting rod 603 is arranged in the long hole 602.

[0044] Limiting sliding grooves 604 are formed in both sides of the connecting block 601 and communicate with the long hole 602. Limiting protrusions 605 are slidingly connected to the limiting sliding grooves 604 on both sides of the limiting rod 603. A traction rod 606 is connected to the limiting rod 603. The other end of the traction rod 606 is fixedly connected to the fixing seat 7.

[0045] The mounting mechanism 2 comprises a guide rail 201 connected to the guide block 10. A T-shaped block 202 is formed in the guide rail 201 for limiting the movement of the guide block 10. The guide block 10 is arranged in the T-shaped block 202. Two groups of bosses 203 are arranged on one side of the guide rail 201. Bearing grooves 204 are formed in the two groups of bosses 203. Bearings 205 are arranged in the bearing grooves 204. A rotating rod 206 is connected to the bearings 205 between the two groups of bosses 203. The rotating rod 206 is fixedly connected to the threaded rod 9. The guide rail 201 comprises a horizontal section 207 and an inclined section 208. The horizontal section 207 and the inclined section 208 are connected through an arc section 209. A support plate 11 is fixedly connected to the lower side of the guide rail 201.

[0046] In the application, the guide block 10 moves along the guide rail 201, and the T-shaped block 202 is arranged on the guide rail 201 and used for limiting, the guide rail 201 includes the horizontal section 207 and the inclined section 208, the guide block 10 can move along the horizontal section 207 and the inclined section 208, when the guide block 10 moves along the horizontal section 207, the seat plate 101 is in a horizontal state, when the guide block 10 moves along the inclined section 208, the seat plate 101 is in an inclined state, it is to be explained that, in order to make the screw rod 9 drive the fixed seat 7 to move without affecting the guide block 10 to move upward along the inclined section 208, the connecting piece 6 is arranged and can be regulated and controlled, the connecting block 601 is provided with the long hole 602, the limiting rod 603 is arranged in the long hole 602, the limiting rod 603 is slidably arranged in the long hole 602, the limiting slide grooves 604 are arranged on the two sides of the long hole 602 and are in communication with the long hole 602, the limiting protrusions 605 are slidably arranged in the limiting slide grooves 604, the traction rod 606 is connected to the limiting rod 603, the other end of the traction rod 606 is fixedly connected to the fixed seat 7, when the guide block 10 moves along the inclined section 208, the seat plate 101 moves upward, the limiting rod 603 can be slidably arranged in the long hole 602 and can be regulated and controlled.

[0047] The adjusting mechanism 3 includes the fixed lug 301 fixedly connected to the support plate 11, the shaft hole 302 is arranged on the fixed lug 301, the mounting shaft 303 is rotatably arranged in the shaft hole 302, the lower end of the backrest 102 is fixedly connected to the mounting shaft 303, the first bevel gear 304 is coaxially arranged on the mounting shaft 303, the drive motor 305 is connected to one end of the mounting shaft 303 through the shaft coupling, the second bevel gear 306 is coaxially fixedly connected to one end of the screw rod 9, the first bevel gear 304 and the second bevel gear 306 are meshingly connected, the bearing seat 901 is connected to the two ends of the screw rod 9 and used for fixing the screw rod 9, the bearing seat 901 is fixedly arranged on the support plate 11, the support plate 11 is connected to the backrest 102 through the connecting plate 307, the strip-shaped hole 308 is arranged on the connecting plate 307, one end of the connecting plate 307 is connected to the support plate 11, and the strip-shaped hole 308 at the other end of the connecting plate 307 is connected to the side surface of the backrest 102.

[0048] The driving motor 305 is arranged to drive the rotation of the mounting shaft 303, the backrest 102 is connected with the mounting shaft 303, so the rotation of the backrest 102 can be driven, the mounting shaft 303 drives the rotation of the first bevel gear 304, the first bevel gear 304 drives the rotation of the second bevel gear 306, so the screw rod 9 can rotate, the screw rod 9 drives the movement of the fixed seat 7, the connecting plate 307 is arranged to connect the support plate 11 with the backrest 102, so the angle of the backrest 102 can be adjusted, and the seat plate 101 can be moved forward with the backrest 102.

[0049] The adjusting assembly 4 comprises clamping assemblies 12 arranged on both sides of the seat plate 101, the clamping assembly 12 comprises a half-circular support plate 1201 and a hinged seat 1202 arranged on one side of the support plate 1201, the side surface of the seat plate 101 is connected with the hinged seat 1202, the hinged seat 1202 is located on the lower side of the seat plate 101, the hinged seat 1202 comprises an axle seat 1203 fixed on the seat plate 101, the axle seat 1203 is rotatably connected with a connecting shaft 1204, two groups of connecting shafts 1204 are both provided with gear wheels 1205, and the two groups of gear wheels 1205 are meshed and connected through a rack 1206.

[0050] The rack 1206 is arranged to drive the rotation of the two groups of gear wheels 1205, the two groups of gear wheels 1205 drive the rotation of the connecting shaft 120, the connecting shaft 120 drives the rotation of the support plate 1201, the support plate 1201 is located on both sides of the seat plate 101, so the covering property of the seat plate 101 can be adjusted, the seat can be suitable for different people, and the adaptability is greatly improved.

[0051] When the backrest 102 is adjusted to a certain angle, if it is not locked, it is easy to slide down.

[0052] The locking mechanism 13 is arranged on the mounting shaft 303, the locking mechanism 13 comprises a ratchet wheel 1301 arranged on the mounting shaft 303, one side of the ratchet wheel 1301 is provided with a control box 1302 for controlling the ratchet wheel 1301, the control box 1302 is provided with an opening 1303, a pawl 1304 is rotatably arranged in the control box 1302, the pawl 1304 passes through the opening 1303, and the pawl 1304 is matched with the ratchet wheel 1301 to prevent the ratchet wheel 1301 from rotating, a spring 1305 is arranged in the control box 1302, a spring column 1306 is arranged on the side surface of the pawl 1304, one end of the spring 1305 is fixed on the spring column 1306, and the other end is abutted against the control box 1302, and a prying block 1307 is arranged on the pawl 1304.

[0053] In the present application, the pawl 1304 can rotate, then lock and fix the ratchet 1301 on the mounting shaft 303, prevent the mounting shaft 303 from appearing the rotation phenomenon, and the spring 1305 arranged can reset the pawl 1304, the pawl 1304 is arranged with the block 1307, the hand swings the block 1307, makes the pawl 1304 fall off from the ratchet 1301, releases the locking state, thereby through the driving motor 305, can make the backrest 102 and the seat plate 101 adjust the position.

[0054] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0055] The above description is only the preferred embodiment of the present application, it should be pointed out that for the ordinary skilled in the art, without departing from the technical principles of the present application, can make a number of improvements and refinements, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A zero-gravity forward-tilt and angle-adjustable seating system, characterized by: The seat body (1), the mounting mechanism (2) arranged at the bottom of the seat body (1), and the adjusting mechanism (3) connecting the seat body (1) and the mounting mechanism (2), and the adjusting assembly (4) on the seat body (1) for adapting to different people are further included; The seat body (1) comprises a seat plate (101) and a backrest (102) rotatably connected to one side of the seat plate (101), and the bottom of the seat plate (101) is provided with a support frame (5) for improving the structural strength of the seat plate (101), the support frame (5) comprises a rectangular support (501) and a cross-shaped insertion rod (502) connecting four corners of the rectangular support (501), the insertion rod (502) is connected with a fixing seat (7) below the staggered position through a connecting piece (6), the fixing seat (7) is provided with a threaded hole (8), the threaded hole (8) is penetrated by a threaded screw rod (9), and the lower side of the rectangular support (501) is provided with a guide block (10) symmetrically arranged on both sides of the fixing seat (7); The mounting mechanism (2) comprises a guide rail (201) connected with the guide block (10), the guide rail (201) is provided with a T-shaped block (202) for limiting the movement of the guide block (10), the guide block (10) is arranged in the T-shaped block (202), the guide rail (201) comprises a horizontal section (207) and an inclined section (208), the horizontal section (207) and the inclined section (208) are connected through an arc section (209), and the lower side of the guide rail (201) is fixedly connected with a support plate (11); The adjusting mechanism (3) comprises a fixed lug seat (301) fixedly connected with the support plate (11), the fixed lug seat (301) is provided with an axle hole (302), the axle hole (302) is rotatably provided with a mounting shaft (303), the lower end of the backrest (102) is fixedly connected with the mounting shaft (303), the mounting shaft (303) is coaxially provided with a first bevel gear (304), one end of the mounting shaft (303) is connected with a driving motor (305) through a shaft coupling, one end of the screw rod (9) is coaxially fixedly connected with a second bevel gear (306), the first bevel gear (304) and the second bevel gear (306) are meshingly connected, and the support plate (11) and the backrest (102) are connected with an adapter plate (307); The mounting shaft (303) is provided with a locking mechanism (13); The locking mechanism (13) comprises a ratchet wheel (1301) arranged on the mounting shaft (303), one side of the ratchet wheel (1301) is provided with a control box (1302) for controlling the ratchet wheel (1301), the control box (1302) is provided with an opening (1303), a pawl (1304) is rotatably arranged in the control box (1302), the pawl (1304) passes through the opening (1303), and the pawl (1304) is matched with the ratchet wheel (1301) to prevent the ratchet wheel (1301) from rotating, the control box (1302) is provided with a spring (1305), the side of the pawl (1304) is provided with a spring column (1306), one end of the spring (1305) is fixed on the spring column (1306), the other end abuts against the control box (1302), and the pawl (1304) is provided with a prying block (1307).

2. A zero-gravity forward-tilting and angle-adjustable seating system according to claim 1, characterized in that: The connecting piece (6) comprises a connecting block (601) fixedly connected below the inserting rod (502), the connecting block (601) is provided with a long hole (602), and the long hole (602) is provided with a limiting rod (603) penetrating through. The connecting block (601) is provided with a limiting sliding groove (604) in communication with the long hole (602) on the two sides of the long hole (602), the limiting rod (603) is provided with a limiting protrusion (605) slidingly connected in the limiting sliding groove (604) on the two sides of the limiting rod (603), and the limiting rod (603) is connected with a traction rod (606).

3. A zero-gravity forward-tilting and angularly adjustable seating system according to claim 1, wherein: The guide rail (201) is provided with two groups of bosses (203) on one side, the bosses (203) are provided with bearing grooves (204), the bearing grooves (204) are provided with bearings (205), and the bearings (205) between the two groups of bosses (203) are connected with a rotating rod (206).

4. A zero-gravity forward-tilting and angularly adjustable seating system according to claim 1, wherein: The connecting plate (307) is provided with a strip-shaped hole (308), one end of the connecting plate (307) is connected with the supporting plate (11), and the strip-shaped hole (308) at the other end of the connecting plate (307) is connected with the side surface of the backrest (102).

5. A zero-gravity forward-tilting and angularly adjustable seating system in accordance with claim 1, wherein: The adjusting assembly (4) comprises clamping assemblies (12) arranged on the two sides of the seat plate (101), the clamping assembly (12) comprises a semicircular supporting plate (1201) and a hinged seat (1202) arranged on one side of the supporting plate (1201), the side surface of the seat plate (101) is connected with the hinged seat (1202), the hinged seat (1202) is located on the lower side of the seat plate (101), the hinged seat (1202) comprises an axle seat (1203) fixed on the seat plate (101), the axle seat (1203) is rotatably connected with a connecting shaft (1204), the two ends of the two connecting shafts (1204) are provided with gear wheels (1205), and the two gear wheels (1205) are meshedly connected through a rack (1206).

6. A zero-gravity forward-tilting and angularly adjustable seating system in accordance with claim 1, wherein: The screw rod (9) is connected with a bearing seat (901) at the two ends, the bearing seat (901) is used for fixing the screw rod (9), and the bearing seat (901) is fixed on the supporting plate (11).

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