Zero-gravity seat frame

Abstract

The utility model relates to a zero-gravity seat frame capable of lifting two legs of a user lying on the zero-gravity seat frame. According to the technical scheme, the zero-gravity seat frame comprises a bottom frame and a seat frame and is characterized in that the bottom frame is provided with a bottom frame swing rod, a front push rod and a rear push rod are installed between the bottom frame and the seat frame, a telescopic rod is installed between the bottom frame swing rod and the bottom frame, and a rear auxiliary rod is installed between the bottom frame swing rod and the rear push rod. The utility model aims to provide a novel seat frame, which directly controls the foot plate frame of the seat frame to extend and retract through a single telescopic rod device, and also can control the seat frame of the seat frame to deform in a manner that the front part of the seat frame is lifted upwards and the rear end of the seat frame is swung downwards, so that both legs of a user can be lifted to a posture that the gravity center is higher than that of the body; and the zero-gravity seat frame can achieve more comfortable use experience.

Description

Technical Field

[0001] The utility model relates to a zero-gravity chair frame which can lift the legs of a user lying on the chair frame. Background Art

[0002] There are many types of chairs available on the market. To further enhance the user experience, chairs with deformable seats have emerged. These seats deform when a user sits, for example, extending the footrests to allow the user's legs to lie flat and naturally for a comfortable experience. However, simply pushing the user's legs flat only serves to relax the legs, but falls far short of providing a fully comfortable experience. Utility Model Content

[0003] The purpose of the utility model is to provide a new type of seat frame, which can directly control the extension and retraction of the foot frame of the seat frame through a single telescopic rod device, and can also control the deformation movement of the seat frame with its front lifting up and rear end swinging down, so as to lift the user's legs to a posture where the center of gravity is higher than the center of gravity of the body, thereby obtaining a zero-gravity seat frame with a greater comfortable use experience.

[0004] The technical solution of the utility model is a zero-gravity chair frame, comprising a base frame and a seat frame, characterized in that the base frame is provided with a base frame rocker, a front push rod and a rear push rod are installed between the base frame and the seat frame, a telescopic rod is installed between the base frame rocker and the base frame, a rear auxiliary rod is installed between the base frame rocker and the rear push rod, the base frame is provided with base frame hole one, base frame hole two, base frame hole three, base frame hole four, the base frame rocker is provided with base frame rocker hole one, base frame rocker hole two, base frame rocker hole three, the seat frame is provided with seat hole one and seat hole two, the front push rod is provided with front push hole one and front push hole two, and the rear push rod is provided with There are rear push hole one, rear push hole two, and rear push hole three. The rear auxiliary rod is provided with rear auxiliary rod hole one and rear auxiliary rod hole two. The base frame hole one cooperates with the front push hole one, the base frame hole two cooperates with the rear push hole one, the rear push rod hole three cooperates with the rear auxiliary rod hole two, the rear auxiliary rod hole one cooperates with the base frame rocker rod hole three, the base frame rocker rod hole one cooperates with the base frame hole three, the seat hole one cooperates with the front push hole two, the seat hole two cooperates with the rear push hole two, the telescopic rod is provided with rod hole one and rod hole two, the rod hole one cooperates with the base frame rocker rod hole two, and the rod hole two cooperates with the base frame hole four.

[0005] The second leg is connected to the third leg by a lever, and the lever is connected to the support frame by a lever, and the lever is connected to the support frame by a lever. There are tripod holes 1 and 2, the first leg seat rod is provided with the first leg seat rod hole 1 and the first leg seat rod hole 2, the second leg seat rod is provided with the second leg seat rod hole 1, the second leg seat rod hole 2 and the second leg seat rod hole 3, the third leg seat rod is provided with the third leg seat rod hole 1, the third leg seat rod hole 2 and the third leg seat rod hole 3, the fourth leg seat rod is provided with the fourth leg seat rod hole 1, the fourth leg seat rod hole 2 and the fourth leg seat rod hole 3, the tripod hole 1 matches the first leg seat rod hole 1 The second leg seat hole cooperates with the first leg seat rod hole, the second leg seat rod hole cooperates with the first leg seat rod hole, the third leg seat rod hole cooperates with the third seat hole, the second leg seat rod hole cooperates with the fourth leg seat rod hole, the fourth leg seat rod hole three cooperates with the fourth seat hole, the third leg seat rod hole two cooperates with the second leg seat rod hole two, the fourth leg seat rod hole two cooperates with the foot plate hole two, and the foot plate hole one cooperates with the rotating plate hole three.

[0006] Preferably, the seat frame is equipped with a backrest frame, a triangular rotating plate, and a backrest swing plate, a backrest auxiliary push rod is installed between the backrest frame and the backrest swing plate, a backrest push rod is installed between the triangular rotating plate and the backrest swing plate, a rotating plate auxiliary rod is installed between the triangular rotating plate and the front push rod, the seat frame is also provided with a seat rotating hole, seat hole five, and seat hole six, the triangular rotating plate is provided with rotating plate hole one, rotating plate hole two, and rotating plate hole four, the seat rotating hole cooperates with rotating plate hole one, the rotating plate auxiliary rod is provided with auxiliary rod hole one and auxiliary rod hole two, the front push rod is also provided with front push hole three, the auxiliary rod hole one cooperates with rotating plate hole two, The auxiliary rod hole two cooperates with the front push hole three, the backrest frame is provided with backrest hole one and backrest hole two, the backrest hole one cooperates with the seat hole five, the backrest auxiliary push rod is provided with backrest auxiliary hole one and backrest auxiliary hole two, the backrest auxiliary hole one cooperates with the backrest hole two, the backrest swing plate is provided with swing plate hole one, swing plate hole two, swing plate hole three, the swing plate hole one cooperates with the seat hole six, the backrest auxiliary hole two cooperates with the swing plate hole three, the backrest push rod is provided with backrest push rod hole one and backrest push rod hole two, the backrest push rod hole one cooperates with the rotating plate hole four, and the backrest push rod hole two cooperates with the swing plate hole two.

[0007] Preferably, the seat frame is also equipped with a cushion rod, a cushion mounting plate is installed on the cushion rod, the seat frame is also provided with seat hole seven, the cushion rod is provided with cushion rod hole one and cushion rod hole two, the cushion mounting plate is provided with mounting plate hole one, the cushion rod hole one cooperates with mounting plate hole one, and the cushion rod hole two cooperates with seat hole seven.

[0008] The seat frame is equipped with a seat cushion, the backrest frame is equipped with a backrest cushion, and the footrest frame is equipped with a footrest board for supporting the user's legs. The connection between the various rod components is hinged, and can swing back and forth along the hinge. The chair frame also has a control device installed in a position that is convenient for the user sitting on the chair frame to touch and use. The control device is electrically connected to the telescopic rod and controls the rod components of the telescopic rod to extend and retract forward and backward. The telescopic rod is an electric push rod. When the telescopic rod receives an electrical signal, it drives the rod components on the telescopic rod to extend and retract forward and backward, driving the telescopic rod push rod to swing back and forth, thereby driving the other components to move.

[0009] Compared with the prior art, the present invention allows the seat frame to swing obliquely upward, and in conjunction with the movement of the footrest that extends outward at the same time, the user sitting on it can lift his legs and swing his body downward, and finally swing to a posture where the center of gravity of the legs is higher than the center of gravity of the body. This can allow blood to flow back to the user's legs, squeeze the veins, and make the blood quickly return to the heart, thereby avoiding venous thrombosis in the user and promoting heart function.

[0010] This chair can switch back and forth between a sitting position and a reclining position by the movement of the telescopic rod. When the seat is in the sitting position, the telescopic rod is in a retracted state, the base frame swing arm swings backward, the front push rod and the rear push rod are both erected between the seat frame and the base frame, the seat frame is placed flat, and the footrest is retracted to be directly below the seat frame.

[0011] When the seat is in a reclining position, the telescopic rod is in an extended state, the bottom frame swing rod swings forward, the front push rod and the rear push rod are both in a forward tilted swinging position, the seat frame is in an inclined swinging state with its front end raised, and the footrest extends forward from the seat frame.

[0012] When the chair switches from a reclining position to a sitting position, the telescopic rod shortens, the bottom frame swing rod swings backward, and the rear push rod is pushed backward by the rear auxiliary rod, so that the rear push rod changes from a forward tilting swinging position to a backward swinging standing position, and the triangular rotating plate is rotated to pull the foot push rod back, so that the foot frame, the first leg seat rod, the second leg seat rod, the third leg seat rod and the fourth leg seat rod are folded inward toward the seat frame, and finally folded to a degree that they cannot fold further inward, so that this posture switching is deformed to a dead point position and cannot be deformed further, that is, it is in a complete deformation state.

[0013] The seat frame can be mounted on a fixed frame, which is fixed to the ground. A fixed frame lifting rod and a fixed frame auxiliary lifting rod that can swing back and forth are installed between the fixed frame and the base frame of the seat frame. The seat frame can be lifted up or lowered to a suitable position for use by swinging the fixed frame lifting rod and the fixed frame auxiliary lifting rod. In this structure, the second rod hole of the telescopic rod is actually connected to the fixed frame lifting rod. When the seat frame switches from a reclining position to a sitting position, the deformation switches to a dead point and cannot be further deformed. The telescopic rod continues to contract, directly causing the fixed frame lifting rod to swing back. The top end of the rod rises, lifting the seat frame until a larger gap is created between the seat frame and the ground, making it convenient for staff to directly sweep out garbage hidden under the seat frame. This is especially useful when the seat is used in a movie theater to extend its application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a frame diagram of the zero-gravity chair frame of the utility model in a reclining state.

[0015] Figure 2 It is a cross-sectional view of the zero-gravity chair frame of the utility model in a sitting or standing state.

[0016] Figure 3 It is a three-dimensional diagram of the base frame 1 of the zero-gravity chair frame of the present invention.

[0017] Figure 4 It is a three-dimensional view of the base frame rocker 16 of the zero-gravity chair frame of the present invention.

[0018] Figure 5It is a three-dimensional view of the rear auxiliary rod 15 of the zero-gravity seat frame of the present invention.

[0019] Figure 6 It is a three-dimensional view of the seat frame 2 of the zero-gravity chair frame of the present invention.

[0020] Figure 7 It is a three-dimensional diagram of the front push rod 3 of the zero-gravity seat frame of the present invention.

[0021] Figure 8 It is a three-dimensional diagram of the rear push rod 4 of the zero-gravity chair frame of the present invention.

[0022] Figure 9 It is a three-dimensional diagram of the telescopic rod 5 of the zero-gravity chair frame of the present invention.

[0023] Figure 10 It is a three-dimensional view of the triangular rotating plate 7 of the zero-gravity chair frame of the present invention.

[0024] Figure 11 It is a three-dimensional view of the rotary plate auxiliary rod 75 of the zero-gravity chair frame of the present invention.

[0025] Figure 12 It is a three-dimensional view of the backrest frame 8 of the zero-gravity chair frame of the present invention.

[0026] Figure 13 It is a three-dimensional view of the backrest push rod 83 of the zero-gravity chair frame of the present invention.

[0027] Figure 14 It is a three-dimensional view of the backrest auxiliary push rod 86 of the zero-gravity chair frame of the present invention.

[0028] Figure 15 It is a three-dimensional view of the footrest frame 6 of the zero-gravity chair frame of the present invention.

[0029] Figure 16 It is a three-dimensional view of the first leg seat post 61 of the zero-gravity chair frame of the present invention.

[0030] Figure 17 It is a three-dimensional view of the second leg seat post 62 of the zero-gravity chair frame of the present invention.

[0031] Figure 18 It is a three-dimensional view of the third leg seat post 63 of the zero-gravity chair frame of the present invention.

[0032] Figure 19 It is a three-dimensional view of the fourth leg seat post 64 of the zero-gravity chair frame of the present invention.

[0033] Figure 20 It is a three-dimensional view of the foot push rod 65 of the zero-gravity chair frame of the present invention.

[0034] Figure 21It is a three-dimensional view of the backrest swing plate 9 of the zero-gravity chair frame of the present invention.

[0035] Figure 1: chassis 1, chassis hole 11, chassis hole 2 12, chassis hole 3 13, chassis hole 4 14, chassis swing rod 16, chassis swing rod hole 1 161, chassis swing rod hole 2 162, chassis swing rod hole 3 163, rear auxiliary rod 15, rear auxiliary rod hole 1 151, rear auxiliary rod hole 2 152, seat frame 2, seat hole 1 21, seat hole 2 22, seat hole 3 23, seat rotation hole 231, seat hole 4 24, seat Chair hole 5 25, seat hole 6 26, telescopic rod 5, rod hole 1 51, rod hole 2 52, front push rod 3, front push hole 1 31, front push hole 2 32, front push hole 3 33, rear push rod 4, rear push hole 1 41, rear push hole 2 42, rear push hole 3 43, triangular rotary plate 7, rotary plate hole 1 71, rotary plate hole 2 72, rotary plate hole 3 73, rotary plate hole 4 74, backrest swing plate 9, swing plate hole 1 91, swing plate hole 2 92, swing plate hole Three 93, backrest frame 8, backrest hole 1 81, backrest hole 2 82, backrest push rod 83, backrest push rod hole 1 84, backrest push rod hole 2 85, backrest auxiliary push rod 86, backrest auxiliary hole 1 87, backrest auxiliary hole 2 88, rotary plate auxiliary rod 75, auxiliary rod hole 1 76, auxiliary rod hole 2 77, foot push rod 65, foot plate hole 1 651, foot plate hole 2 652, footrest 6, footrest hole 1 613, footrest hole 2 614, first The foot seat rod 61, the first foot seat rod hole 1 611, the first foot seat rod hole 2 612, the second foot seat rod 62, the second foot seat rod hole 1 621, the second foot seat rod hole 2 622, the third foot seat rod 63, the third foot seat rod hole 1 631, the third foot seat rod hole 2 632, the third foot seat rod hole 3 633, the fourth foot seat rod 64, the fourth foot seat rod hole 1 641, the fourth foot seat rod hole 2 642, the fourth foot seat rod hole 3 643. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below with reference to the accompanying drawings.

[0037] Reference Figure 1-21 The zero-gravity chair frame of the present invention has two operating states: a sitting state and a reclining state. The chair can be switched back and forth between the sitting state and the reclining state by the movement of the telescopic rod 5. When the chair is in the sitting state, the telescopic rod 5 is in a retracted state, the base frame swing arm 16 swings backward, the front push rod 3 and the rear push rod 4 both stand between the seat frame 2 and the base frame 1, the seat frame 2 is flat, and the footrest 6 is retracted directly below the seat frame 2, with the first footrest hole 611 located below the second footrest hole 621. When the chair is in the reclining state, the telescopic rod 5 is in an extended state, the base frame swing arm 16 swings forward, the front push rod 3 and the rear push rod 4 both tilt forward, the seat frame 2 is tilted with its front end raised, and the footrest 6 extends forward from the seat frame 2, with the first footrest hole 611 located in front of the second footrest hole 621.

[0038] When the seat frame is in the sitting state, the user sits on it and then controls the telescopic rod 5 to extend through the control device of the seat. Because the rod hole 1 51 cooperates with the bottom frame rocker rod hole 2 162, the telescopic rod 5 extends to drive the bottom frame rocker rod 16 to swing forward, thereby pushing the rear auxiliary rod 15 forward to cause the originally upright rear rocker rod 4 to swing forward, pushing the seat frame 2 and the front rocker rod 3 forward, and finally pushing the seat frame 2 forward to a tilted swing state with its front end raised.

[0039] The following is for reference Figure 2 The swing direction of the cross-sectional view is the reference direction. Considering only the movement of the triangular rotating plate 7 and the front push rod 3, when the seat frame 2 is pushed forward, the triangular rotating plate 7 mounted on the seat frame 2 is pushed forward together. Since the third front push hole 33 is located between the first front push hole 31 and the second front push hole 32, the distance between the auxiliary rod hole 2 77 and the third front push hole 33 tends to decrease. Then, the rotating plate auxiliary rod 75 mounted on the triangular rotating plate 7 and the front push rod 3 rotates the triangular rotating plate 7 in a clockwise direction with the rotating plate hole 1 71 as the rotation center, thereby pushing the foot push rod 65 and the backrest push rod 83 forward together. The footrest push rod 65 pushes the fourth footrest rod 64 forward, pushing the first footrest rod 61, the second footrest rod 62, the third footrest rod 63, and the fourth footrest rod 64 forward together until the first footrest rod hole 1 611 is located in front of the second footrest rod hole 1 621, allowing the footrest frame 6 to extend in a nearly flat position. The backrest push rod 83 pushes forward, causing the backrest swing plate 9 to swing counterclockwise about the swing plate hole 1 91 as the rotation center. This pulls the backrest frame 8 downward via the backrest auxiliary push rod 86, causing the backrest frame 8 to swing counterclockwise about the backrest hole 1 81 as the rotation center, causing the backrest cushion mounted on the backrest frame 8 to swing downward to a tilted position. Finally, the seat cushion of this chair frame, with its front end raised and tilted, forms a large obtuse angle with the backrest cushion, and the footrest plate is raised to a position above the seat cushion.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. A zero-gravity chair frame, comprising a base frame (1) and a seat frame (2), characterized in that: The base frame (1) is provided with a base frame swing rod (16), a front push rod (3) and a rear push rod (4) are installed between the base frame (1) and the seat frame (2), a telescopic rod (5) is installed between the base frame swing rod (16) and the base frame (1), and a rear auxiliary rod (15) is installed between the base frame swing rod (16) and the rear push rod (4). The base frame (1) is provided with a base frame hole 1 (11), a base frame hole 2 (12), a base frame hole 3 (13), and a base frame hole 4 (14); the base frame rocker (16) is provided with a base frame rocker hole 1 (161), a base frame rocker hole 2 (162), and a base frame rocker hole 3 (163); the seat frame (2) is provided with a seat hole 1 (21), and a seat hole 2 (22); the front push rod (3) is provided with a front push hole 1 (31), and a front push hole 2 (32); the rear push rod (4) is provided with a rear push hole 1 (41), and a rear push hole 2 ( 42), rear push hole three (43), the rear auxiliary rod (15) is provided with rear auxiliary rod hole one (151), rear auxiliary rod hole two (152), the base frame hole one (11) cooperates with the front push hole one (31), the base frame hole two (12) cooperates with the rear push hole one (41), the rear push rod hole three (43) cooperates with the rear auxiliary rod hole two (152), the rear auxiliary rod hole one (151) cooperates with the base frame rocker rod hole three (163), the base frame rocker rod hole one (161) cooperates with the base frame hole three (13), The seat hole 1 (21) cooperates with the front push hole 2 (32), the seat hole 2 (22) cooperates with the rear push hole 2 (42), the telescopic rod (5) is provided with a rod hole 1 (51) and a rod hole 2 (52), the rod hole 1 (51) cooperates with the bottom frame rocker hole 2 (162), and the rod hole 2 (52) cooperates with the bottom frame hole 4 (14).

2. The zero-gravity chair frame according to claim 1, characterized in that The zero-gravity chair frame also includes a foot frame (6), the foot frame (6) is installed with a first foot seat rod (61) and a third foot seat rod (63), the seat frame (2) is also installed with a second foot seat rod (62) and a fourth foot seat rod (64), the first foot seat rod (61) is connected to the second foot seat rod (62), the third foot seat rod (63) is connected to the fourth foot seat rod (64), the seat frame (2) is installed with a triangular rotary plate (7), a rotary plate auxiliary rod (75) is installed between the triangular rotary plate (7) and the front push rod (3), a foot push rod (65) is installed between the triangular rotary plate (7) and the fourth foot seat rod (64), the second foot seat rod (62) is connected to the third foot seat rod (63), The seat frame (2) is further provided with a seat hole three (23), a seat hole four (24), and a seat rotation hole (231); the front push rod (3) is further provided with a front push hole three (33); the triangular rotary plate (7) is provided with a rotary plate hole one (71), a rotary plate hole two (72), and a rotary plate hole three (73); the seat rotation hole (231) is matched with the rotary plate hole one (71); the rotary plate auxiliary rod (75) is provided with an auxiliary rod hole one (76) and an auxiliary rod hole two (77); the auxiliary rod hole one (76) is matched with the rotary plate hole two (72); the auxiliary rod hole two (77) is matched with the front push hole three (33); The foot push rod (65) is provided with foot hole one (651) and foot hole two (652); the foot frame (6) is provided with foot frame hole one (613) and foot frame hole two (614); the first foot seat rod (61) is provided with first foot seat rod hole one (611) and first foot seat rod hole two (612); the second foot seat rod (62) is provided with second foot seat rod hole one (621), second foot seat rod hole two (622), and second foot seat rod hole three (623); the third foot seat rod (63) is provided with third foot seat rod hole one (631), third foot seat rod hole two (632), and third foot seat rod hole three (633); the fourth foot seat rod (64) is provided with fourth foot seat rod hole one (641), fourth foot seat rod hole two (642), and fourth foot seat rod hole three (643); The tripod hole one (613) cooperates with the first foot seat rod hole one (611), the tripod hole two (614) cooperates with the second foot seat rod hole one (621), the first foot seat rod hole two (612) cooperates with the third foot seat rod hole one (631), the third foot seat rod hole three (633) cooperates with the seat hole three (23), the second foot seat rod hole three (623) cooperates with the fourth foot seat rod hole one (641), the fourth foot seat rod hole three (643) cooperates with the seat hole four (24), the third foot seat rod hole two (632) cooperates with the second foot seat rod hole two (622), the fourth foot seat rod hole two (642) cooperates with the foot plate hole two (652), and the foot plate hole one (651) cooperates with the rotary plate hole three (73).

3. The zero-gravity chair frame according to claim 1, wherein: The seat frame is provided with a backrest frame (8), a triangular rotary plate (7), and a backrest swing plate (9); a backrest auxiliary push rod (86) is provided between the backrest frame (8) and the backrest swing plate (9); a backrest push rod (83) is provided between the triangular rotary plate (7) and the backrest swing plate (9); a rotary plate auxiliary rod (75) is provided between the triangular rotary plate (7) and the front push rod (3); The seat frame (2) is also provided with a seat rotation hole (231), a seat hole five (25), and a seat hole six (26); the triangular rotary plate (7) is provided with a rotary plate hole one (71), a rotary plate hole two (72), and a rotary plate hole four (74); the seat rotation hole (231) is matched with the rotary plate hole one (71); the rotary plate auxiliary rod (75) is provided with an auxiliary rod hole one (76) and an auxiliary rod hole two (77); the front push rod (3) is also provided with a front push hole three (33); the auxiliary rod hole one (76) is matched with the rotary plate hole two (72); the auxiliary rod hole two (77) is matched with the front push hole three (33); the backrest frame (8) is provided with a backrest hole one (81) and a backrest hole two (82); the backrest hole one (81) is matched with the seat The backrest auxiliary push rod (86) is provided with a backrest auxiliary hole one (87) and a backrest auxiliary hole two (88), and the backrest auxiliary hole one (87) is matched with the backrest hole two (82). The backrest swing plate (9) is provided with a swing plate hole one (91), a swing plate hole two (92), and a swing plate hole three (93). The swing plate hole one (91) is matched with the seat hole six (26). The backrest auxiliary hole two (88) is matched with the swing plate hole three (93). The backrest push rod (83) is provided with a backrest push rod hole one (84) and a backrest push rod hole two (85). The backrest push rod hole one (84) is matched with the rotary plate hole four (74), and the backrest push rod hole two (85) is matched with the swing plate hole two (92).

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