Step sofa frame

Abstract

The utility model relates to a step sofa frame which can lift the lower part of the body of a user sitting on the step sofa frame by two legs. The step sofa frame comprises a bottom frame, the bottom frame is provided with a cushion frame, a cushion sub-frame, a push rod frame and a bottom frame plate, the cushion sub-frame is hinged to the bottom frame plate, a foot-pad rotating plate is hinged between the cushion frame and the cushion sub-frame, the cushion frame is hinged to a foot-pad frame, a foot-pad push rod is hinged between the foot-pad rotating plate and the foot-pad frame, and the foot-pad push rod is hinged to the bottom frame plate. And a push rod is arranged between the cushion frame and the push rod frame. The utility model aims to provide the novel step sofa frame, the cushion frame and the cushion sub-frame of the seat frame are directly controlled to move through the electric push rod, so that the cushion foot frame smoothly extends upwards to lift the two legs of a user, and the body of the user sinks until the body of the user lies on the sofa frame, so that the sofa frame is convenient to use. Therefore, the step sofa frame can obtain more comfortable use experience.

Description

Technical Field

[0001] The utility model relates to a step sofa frame which can elevate the body of a user sitting on the sofa by means of legs. 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 novel step sofa frame, which directly controls the movement of the seat cushion frame and the seat cushion sub-frame of the seat frame through an electric push rod, thereby allowing the footrest to extend upward smoothly to lift the user's legs, and sink the user's body until the user lies flat on the sofa frame, so as to obtain a more comfortable use experience of the step sofa frame.

[0004] The technical solution of the utility model is as follows: a step sofa frame includes a base frame, the base frame is provided with a seat cushion frame, a seat cushion sub-frame, and a push rod frame, and is characterized in that the base frame is fixedly mounted with a base frame plate, the seat cushion sub-frame is hingedly connected to the base frame plate, a seat cushion sub-rod and a footrest rotating plate are hingedly connected between the seat cushion frame and the seat cushion sub-frame, the seat cushion frame is hingedly connected to the footrest frame, a footrest push rod is hingedly connected between the footrest rotating plate and the footrest frame, and a push rod is installed between the seat cushion frame and the push rod frame. The seat cushion frame is hingedly connected to a back cushion frame, and a back cushion sub-rod is hingedly connected between the back cushion frame and the base frame plate.

[0005] This utility model features a step-type sofa frame that can be used in private theaters. The base frame secures the sofa frame to the ground. The seat frame is equipped with a soft seat cushion for comfortable seating, the back cushion frame is equipped with a soft back cushion for comfortable back support, and the footrest frame is equipped with a footrest. When extended, the footrest provides a stable support for the instep of the user, allowing the user to lie comfortably. The push rod installed between the seat frame and the push rod frame is an electric push rod. The motor drives the rod within the push rod to extend and retract, thereby driving the seat frame and push rod frame to move, causing the sofa frame to deform.

[0006] Preferably, a first swing link and a second swing link are hingedly connected between the push rod frame and the base frame plate, and a sub-frame secondary rod is hingedly connected between the seat cushion sub-frame and the first swing link. The first and second swing links enable the push rod frame to swing slightly upwards, forwards, and downwards on the base frame. The sub-frame secondary rod allows the first swing link to swing to control the seat cushion secondary rod to a certain degree.

[0007] Preferably, the seat cushion sub-frame is provided with sub-frame hole two, the base frame plate is provided with base frame hole one and base frame hole three, the push rod frame is provided with push rod frame hole one and push rod frame hole two, the first rocker arm is provided with rocker arm hole one, rocker arm hole two and rocker arm hole three, the second rocker arm is provided with rocker arm hole four and rocker arm hole five, the sub-frame sub-rod is provided with push rod sub-hole one and push rod sub-hole two, the rocker arm hole one cooperates with the push rod frame hole one, the rocker arm hole three cooperates with the base frame hole one, the push rod frame hole two cooperates with the rocker arm hole four, the rocker arm hole five cooperates with the base frame hole three, the sub-frame hole two cooperates with the push rod sub-hole one, and the push rod sub-hole two cooperates with the rocker arm hole two.

[0008] Preferably, the seat cushion frame is provided with seat cushion frame hole four, the seat cushion sub-frame is provided with sub-frame hole three and sub-frame hole four, the base frame plate is provided with base frame hole two, the seat cushion sub-rod is provided with sub-rod hole one and sub-rod hole two, the seat cushion frame hole four cooperates with sub-rod hole one, the sub-frame hole three cooperates with sub-rod hole two, and the base frame hole two cooperates with sub-frame hole four.

[0009] Preferably, the seat cushion frame is provided with seat cushion hole 1, seat cushion hole 2, and seat cushion hole 3, the footrest rotary plate is provided with rotary plate hole 1, rotary plate hole 2, and rotary plate hole 3, the seat cushion sub-frame is provided with sub-frame hole 1, the footrest push rod is provided with push rod hole 1 and push rod hole 2, the rotary plate hole 1 cooperates with the seat cushion hole 3, the rotary plate hole 2 cooperates with the sub-frame hole 1, and the rotary plate hole 3 cooperates with the push rod hole 2, the footrest frame includes a footrest frame, a first foot rod, a second foot rod, a third foot rod, and a fourth foot rod, the footrest frame is provided with footplate hole 1 and footplate hole 2, the first foot rod is provided with a first foot hole 1 , the first foot hole two, the second foot rod is provided with a second foot hole one and a second foot hole two, the third foot rod is provided with a third foot hole one and a third foot hole two, the fourth foot rod is provided with a fourth foot hole one, a fourth foot hole two and a fourth foot hole three, the first foot hole one cooperates with the foot plate hole one, the second foot hole one cooperates with the foot plate hole two, the first foot hole two cooperates with the third foot hole two, the third foot hole one cooperates with the seat cushion hole one, the second foot hole two cooperates with the fourth foot hole two, the fourth foot hole one cooperates with the seat cushion hole two, and the fourth foot hole three cooperates with the push rod hole one.

[0010] Preferably, the back cushion frame is provided with back cushion hole one and back cushion hole two, the back cushion auxiliary rod is provided with back cushion hole three and back cushion hole four, the seat cushion frame is also provided with seat cushion hole five, and the base frame plate is also provided with base frame hole four. The back cushion hole one cooperates with the seat cushion hole five, the back cushion hole two cooperates with the back cushion hole three, and the back cushion hole four cooperates with the base frame hole four.

[0011] The above-mentioned hole-matching structure refers to a connection method in which a pin is strung between the holes, so that the holes can rotate relative to each other, and the two rods corresponding to the matching relationship between the holes can rotate back and forth between the rods.

[0012] Compared with the prior art, the present invention allows the sofa base frame to swing obliquely upward, and cooperates with the movement of the footrest that extends outward at the same time, so that the legs of the user sitting on it can be lifted up and the body can be swung down, and finally it can be swung to a state 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a frame diagram of the utility model step sofa frame in a sitting state.

[0014] Figure 2 This is a frame diagram of the step sofa frame of the utility model when it is in the process of changing from a sitting state to a reclining state.

[0015] Figure 3 This is a frame diagram of the utility model step sofa frame in a reclining state.

[0016] Figure 4 It is a side view of the step sofa frame of the present invention with the push rod 63 hidden.

[0017] Figure 5 This is a diagram showing the connection relationship of the various components of the step sofa frame of the utility model when viewed from the side in another direction.

[0018] Figure 6 It is a three-dimensional diagram of the base frame 1 of the step sofa frame of the present invention.

[0019] Figure 7 It is a three-dimensional view of the cushion frame 2 of the step sofa frame of the present invention.

[0020] Figure 8 It is an exploded view of the cushion sub-frame 3 of the step sofa frame of the present invention.

[0021] Figure 9 It is an exploded view of the push rod frame 9 of the utility model step sofa frame.

[0022] Figure 10 It is an exploded view of the back cushion frame 7 of the step sofa frame of the present invention.

[0023] Figure 11 It is an exploded view of the footrest 5 of the step sofa frame of the present invention.

[0024] Figure 12 It is an exploded view of the footrest rotating plate 11 of the step sofa frame of the present invention.

[0025] Reference numerals: 1-base frame, 11-foot rotating plate, 111-rotating plate hole 1. 112-rotating plate hole 2, 113-rotating plate hole 3, 12-foot push rod, 121-push rod hole 1, 122-push rod hole 2, 13-base frame plate, 131-base frame hole 1, 132-base frame hole 2, 133-base frame hole 3, 134-base frame hole 4, 2-seat cushion frame, 211-seat cushion hole 1, 212-seat cushion hole 2, 213-seat cushion hole 3, 214-seat cushion frame hole 4, 215-seat cushion Hole five, 216-seat frame hole six, 3-seat cushion sub-frame, 31-seat cushion sub-rod, 311-sub-frame hole one, 312-sub-frame hole two, 313-sub-frame hole three, 314-sub-frame hole four, 315-sub-rod hole one, 316-sub-rod hole two, 5-foot frame, 51-first foot rod, 511-first foot hole one, 512-first foot hole two, 52-second foot rod, 521-second foot hole one, 522 -Second foot hole 2, 53-third foot rod, 531-third foot hole 1, 532-third foot hole 2, 54-fourth foot rod, 541-fourth foot hole 1, 542-fourth foot hole 2, 543-fourth foot hole 3, 55-foot plate frame, 551-foot plate hole 1, 552-foot plate hole 2, 6-push rod frame, 61-first swing rod, 611-swing rod hole 1, 612-swing rod hole 2, 613-swing rod hole 3, 621-rocker rod hole four, 622-rocker rod hole five, 614-push rod frame hole one, 615-push rod frame hole two, 616-push rod hole three, 62-second rocker rod, 63-push rod, 64-sub-frame sub-rod, 641-push rod sub-hole one, 642-push rod sub-hole two, 7-back pad frame, 71-back pad hole one, 72-back pad hole two, 73-back pad hole three, 74-back pad hole four, 75-back pad sub-rod. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings.

[0027] The front end of the step sofa frame herein refers to the direction from the center point of the sofa frame toward the footrest frame 5 , and the rear end refers to the direction from the center point of the sofa frame toward the push rod frame 6 .

[0028] Reference Figure 1-12The present invention provides a step sofa frame with two operating modes: a sitting position and a reclining position. The sofa frame can be switched between the two positions by the movement of a push rod 63. In the sitting position, the push rod 63 is extended and tilted with its front end at the upper end. The rear end of the push rod frame 6 is closest to the rear end of the base frame 1. The seat cushion frame 2 lies flat, the backrest frame 7 stands upright, and the footrest frame 5 is retracted below the seat cushion frame 2. In the reclining position, the push rod 63 is shortened and lies flat. The push rod frame 6 is pushed forward and raised a certain distance. The seat cushion frame 2 tilts upward with its front end, and the seat cushion sub-frame 3 tilts upward with its front end, causing the seat cushion frame 2 to tilt further. The backrest frame 7 swings downward, and the footrest frame 5 extends from below the seat cushion frame 2 to a position above the seat cushion frame 2. The push rod 63 is installed between the seat cushion frame hole 6 216 and the push rod hole 3 616.

[0029] Reference Figure 1-2 When the sofa frame is in the sitting position and the user sits on it, the control push rod 63 is shortened to half its stroke. The seat cushion sub-frame 3 does not move, the rear end of the seat cushion frame 2 swings downward, and the front end of the seat cushion frame 2 lifts upward, causing the footrest frame 5 to lift upward and rotate the footrest rotating plate about the second rotating plate hole 112 as the axis, thereby extending the footrest push rod 12 forward, and then fully deploying the footrest frame 5 forward; the backward swing of the seat cushion frame 2 causes the back cushion frame 7 to move backward together, and under the action of the back cushion sub-rod 75, the back cushion frame 7 makes its rear end swing downward by a certain angle, but the back cushion frame 7 has not yet swung backward to the direction that allows the user to lie flat. At this time, the seat cushion frame 2 swings down to the dead point position.

[0030] Reference Figure 3 When the push rod 63 continues to shorten to its maximum stroke, the seat cushion frame 2 is at its dead center. To allow the push rod 63 to continue operating, the push rod frame 6 is first pushed forward. Under the action of the first and second swing rods 61 and 62, the push rod frame 6's forward swing direction changes to a forward upward movement. The first swing rod 61 is pushed forward and upright, applying an upward and forward force to the push rod secondary hole 2 642, thereby lifting the secondary frame secondary rod 64, and thus the seat cushion secondary frame 3. This causes the seat cushion frame 2, which is mounted on the seat cushion secondary frame 3, to swing further backward. This further shortens the position of the seat cushion frame hole 6 216 and the push rod hole 3 616, which are hingedly connected to the push rod 63, to their limits. The backward swinging of the seat cushion frame 2 causes the front end of the seat cushion frame 2 to be further lifted, and the footrest 5 mounted on the seat cushion frame 2 is lifted to a position where the center of gravity of the user's legs is higher than the center of gravity of the body, providing a comfortable experience. The further backward swing of the seat cushion frame 2 will allow the back cushion frame 7 to further backward swing, and finally the back cushion frame 7 will be swung back to the point where the user's back can lie flat on the sofa frame.

[0031] 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 step sofa frame, comprising a base frame (1), wherein the base frame (1) comprises a cushion frame (2) and a push rod frame (6), characterized in that: The base frame (1) further comprises a seat cushion sub-frame (3), the base frame (1) is fixedly mounted with a base frame plate (13), the seat cushion sub-frame (3) is hingedly connected to the base frame plate (13), a seat cushion sub-rod (31) and a footrest rotary plate (11) are hingedly connected between the seat cushion frame (2) and the seat cushion sub-frame (3), the seat cushion frame (2) is hingedly connected to a footrest frame (5), a footrest push rod (12) is hingedly connected between the footrest rotary plate (11) and the footrest frame (5), and a push rod (63) is mounted between the seat cushion frame (2) and the push rod frame (6).

2. The step sofa frame according to claim 1, characterized in that: A first swing rod (61) and a second swing rod (62) are hingedly connected between the push rod frame (6) and the bottom frame plate (13), and a sub-frame sub-rod (64) is hingedly connected between the seat cushion sub-frame (3) and the first swing rod (61).

3. The step sofa frame according to claim 2, characterized in that: The cushion sub-frame (3) is provided with a sub-frame hole 2 (312), the bottom frame plate (13) is provided with a bottom frame hole 1 (131) and a bottom frame hole 3 (133), the push rod frame (6) is provided with a push rod frame hole 1 (614) and a push rod frame hole 2 (615), the first rocker (61) is provided with a rocker hole 1 (611), a rocker hole 2 (612) and a rocker hole 3 (613), the second rocker (62) is provided with a rocker hole 4 (621) and a rocker hole 5 (622), the sub-frame sub-rod (64) is provided with a push rod sub-rod Hole one (641), push rod auxiliary hole two (642), the rocker hole one (611) cooperates with the push rod frame hole one (614), the rocker hole three (613) cooperates with the bottom frame hole one (131), the push rod frame hole two (615) cooperates with the rocker hole four (621), the rocker hole five (622) cooperates with the bottom frame hole three (133), the auxiliary frame hole two (312) cooperates with the push rod auxiliary hole one (641), and the push rod auxiliary hole two (642) cooperates with the rocker hole two (612).

4. The step sofa frame according to claim 1, characterized in that: The seat cushion frame (2) is provided with a seat cushion frame hole four (214), the seat cushion sub-frame (3) is provided with a sub-frame hole three (313) and a sub-frame hole four (314), the bottom frame plate (13) is provided with a bottom frame hole two (132), the seat cushion sub-rod (31) is provided with a sub-rod hole one (315) and a sub-rod hole two (316), the seat cushion frame hole four (214) cooperates with the sub-rod hole one (315), the sub-frame hole three (313) cooperates with the sub-rod hole two (316), and the bottom frame hole two (132) cooperates with the sub-frame hole four (314).

5. The step sofa frame according to claim 1, characterized in that: The cushion frame (2) is provided with a cushion hole 1 (211), a cushion hole 2 (212), and a cushion hole 3 (213); the footrest rotating plate (11) is provided with a rotating plate hole 1 (111), a rotating plate hole 2 (112), and a rotating plate hole 3 (113); the cushion sub-frame (3) is provided with a sub-frame hole 1 (311); the footrest push rod (12) is provided with a push rod hole 1 (121), and a push rod hole 2 (122); the rotating plate hole 1 (111) and the cushion hole 3 (213) are connected. The second rotating plate hole (112) is matched with the first auxiliary frame hole (311), the third rotating plate hole (113) is matched with the second push rod hole (122), the pad foot frame (5) includes a foot frame (55), a first foot rod (51), a second foot rod (52), a third foot rod (53), and a fourth foot rod (54), the foot frame (55) is provided with a foot hole (551) and a foot hole (552), the first foot rod (51) is provided with a first foot hole ( 511), first foot hole two (512), the second foot rod (52) is provided with a second foot hole one (521), a second foot hole two (522), the third foot rod (53) is provided with a third foot hole one (531), a third foot hole two (532), the fourth foot rod (54) is provided with a fourth foot hole one (541), a fourth foot hole two (542), a fourth foot hole three (543), the first foot hole one (511) is matched with the foot plate hole one (551), The second foot hole 1 (521) cooperates with the foot plate hole 2 (552), the first foot hole 2 (512) cooperates with the third foot hole 2 (532), the third foot hole 1 (531) cooperates with the seat hole 1 (211), the second foot hole 2 (522) cooperates with the fourth foot hole 2 (542), the fourth foot hole 1 (541) cooperates with the seat hole 2 (212), and the fourth foot hole 3 (543) cooperates with the push rod hole 1 (121).

6. The step sofa frame according to claim 1, characterized in that: The seat cushion frame (2) is hingedly connected to a back cushion frame (7), and a back cushion auxiliary rod (75) is hingedly connected between the back cushion frame (7) and the bottom frame plate (13).

7. The step sofa frame according to claim 6, characterized in that: The back cushion frame (7) is provided with a back cushion hole 1 (71) and a back cushion hole 2 (72); the back cushion auxiliary rod (75) is provided with a back cushion hole 3 (73) and a back cushion hole 4 (74); the seat cushion frame (2) is further provided with a seat cushion hole 5 (215); the bottom frame plate (13) is further provided with a bottom frame hole 4 (134); the back cushion hole 1 (71) cooperates with the seat cushion hole 5 (215); the back cushion hole 2 (72) cooperates with the back cushion hole 3 (73); and the back cushion hole 4 (74) cooperates with the bottom frame hole 4 (134).

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