Automatic pressing and flipping opening and closing structure for furniture

Abstract

An automatic push-up flip-up opening and closing structure for furniture includes a push element, a fixed element, a connecting arm assembly, and an elastic member that are mutually connected and matched. The push element is opened and closed on the fixed element through the elastic hinge of the connecting arm assembly and the elastic member; when the push element is hinged and opened and closed to a certain position relative to the fixed element at the opening terminal position, the elastic force of the elastic member at least offsets the gravity of the push element, and the push element is suspended and opened and closed on the fixed element; when the push element is hinged and opened relative to the fixed element at the closing terminal position, it is automatically hinged and opened on the fixed element through the elastic force of the elastic member; when the push element is in a certain opening position relative to the fixed element, the push element is pushed by an external force and driven to hinge and close relative to the fixed element, and when the push element is hinged and closed to a certain position, it is automatically closed on the fixed element at least by its own weight and / or the elastic force of the elastic member. The present invention has strong practicality through the improvement of the above structure.

Description

Technical Field

[0001] The invention relates to an automatic pressing and flipping opening and closing structure for furniture. Background Art

[0002] Chinese patent document number CN202039710U disclosed a flip-up door hinge on November 16, 2011. The bent end of the first rotating arm of the structure is rotatably connected to the base plate, and the bent end of the second rotating arm is rotatably connected to the base plate. The two ends of the connecting arm that can overlap with the straight ends of the first rotating arm and the second rotating arm are respectively rotatably connected to the straight ends of the first rotating arm and the second rotating arm. The connecting arm is located between the first rotating arm and the second rotating arm. The bent end of the first rotating arm is hinged to the free end of the movable rod of the gas rod. The fixed rod of the gas rod is movably connected to the base plate. The base plate is also provided with an elastic device having a collision portion, which elastically collides with the corner when the second rotating arm rotates. It is said that this structure can reduce noise, and the closing or opening movement of the cabinet door is more flexible. During the movement of the cabinet door, it moves in an overall translational manner, which can avoid the situation where ordinary cabinet doors may hit the head; however, the upward flip door hinge only realizes buffer damping through the elastic device, and cannot achieve automatic opening and closing. At the same time, the force during opening and closing cannot achieve a uniform effect, and the elastic device has a large friction force when the upward flip door hinge is opened and closed, and the noise is high, which cannot meet the user's use needs. Therefore, it is necessary to further improve it. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic push-up opening and closing structure for furniture which has a simple and reasonable structure, is safe and reliable, easy to produce, easy to implement, easy to use, has compact connections between components, is smooth when opening and closing, has little collision and low noise, so as to overcome the shortcomings of the prior art.

[0004] An automatic push-up opening and closing structure for furniture designed for this purpose includes a pushing element, a fixing element, a connecting arm assembly, and an elastic member, and is characterized in that the connecting arm assembly includes at least a first connecting arm, a second connecting arm, and a third connecting arm, the first connecting arm is hinged on the fixing element, and is respectively hinged to the pushing element and one end of the second connecting arm, the third connecting arm is hinged on the fixing element, and is hinged to the other end of the second connecting arm, and the elastic member elastically acts on the third connecting arm; the pushing element is opened and closed on the fixing element through the elastic hinge of the connecting arm assembly and the elastic member.

[0005] When the push element is hinged to a certain position relative to the fixed element at the open terminal position, the elastic force of the elastic member at least offsets the gravity of the push element, and the push element is suspended and opened and closed on the fixed element.

[0006] When the push element is hingedly opened relative to the fixing element in the closed end position, it is automatically hingedly opened on the fixing element by the elastic force of the elastic member.

[0007] When the push element is in a certain open position relative to the fixed element, the push element is pushed by external force and driven to hinge and close relative to the fixed element. When the push element is hinged and closed to a certain position, it is automatically closed on the fixed element at least by its own weight and / or the elastic force of the elastic member.

[0008] A first shaft portion is arranged between the first connecting arm and the fixed element, and the two are hinged to each other through the first shaft portion; a second shaft portion is arranged between the first connecting arm and the second connecting arm, and the two are hinged to each other through the second shaft portion; a third shaft portion is arranged between the second connecting arm and the third connecting arm, and the two are hinged to each other through the third shaft portion; the elastic member is a tension spring or a compression spring, and one end thereof elastically acts on the third connecting arm, and the other end elastically acts on the fixed element, and the tension spring or the compression spring generates an elastic force when the pushing element is hingedly opened and closed.

[0009] The pushing element drives the first, second and third connecting arms to be hinged to each other when the opening terminal position is hingedly opened and closed to a certain position relative to the fixed element; wherein, when the pushing element is hingedly opened and closed, the first shaft portion forms a shaft portion vertical line between the horizontal line and the shaft portion, and when the second shaft portion is located on the shaft portion vertical line or offset from the shaft portion vertical line by a certain vertical offset angle, the elastic force of the elastic member at least offsets the gravity of the pushing element, and the pushing element is suspended and opened and closed on the fixed element; the vertical offset angle is 0 degrees to 60 degrees when the pushing element moves in the opening direction and / or 0 degrees to 20 degrees when the pushing element moves in the closing direction.

[0010] When the pushing element is in a certain open position relative to the fixed element, the pushing element is pushed by a tool or manually, and the pushing element is hinged closed relative to the fixed element, and when hinged closed, the first, second and third connecting arms are driven to hinge with each other; wherein, when the pushing element is hinged closed to a certain position, the axes of the first shaft portion, the second shaft portion and the third shaft portion form an axial straight line, and when the second shaft portion is located on the axial straight line or deviates from the axial straight line by a certain offset axial angle, the pushing element is automatically closed on the fixed element at least by its own weight and / or the elastic force of the elastic member; the offset axial angle is 0 degrees to 20 degrees and / or -20 degrees to 0 degrees.

[0011] The structure also includes a furniture flip-up door and a furniture cabinet, wherein a push element is cooperatively connected to the furniture flip-up door, and a fixing element is cooperatively connected to the furniture cabinet; the furniture flip-up door is opened and closed on the furniture cabinet by elastic flipping through cooperation of the push element, the fixing element, the connecting arm assembly, and the elastic member; a pressing and rebounding device is also provided on the furniture cabinet or the fixing element, and when the furniture flip-up door is hingedly opened relative to the furniture cabinet at the closed terminal position, it is automatically flipped and opened on the furniture cabinet by the pressing of the pressing and rebounding device and the elastic force of the elastic member.

[0012] The push-rebound device comprises a fixed component, a push-rebound member and a movable component. The fixed component is arranged on a furniture cabinet or a fixed element and is provided with a heart-shaped groove. One end of the push-rebound member elastically acts on the fixed component, and the other end of the push-rebound member elastically acts on the movable component. The movable component slides out of the fixed component and / or is positioned in the fixed component along the track of the heart-shaped groove through the push-rebound member. When the movable component slides out, the elastic member generates an elastic force in the direction of flipping and opening the furniture upper flip door, and drives the furniture upper flip door to automatically open a certain angle relative to the furniture cabinet.

[0013] When the furniture flip-up door is in the closed terminal position, the furniture flip-up door is pressed by a tool or manually, and the furniture flip-up door is pressed and the movable part is driven to elastically slide along the trajectory of the heart-shaped groove and extend out of the fixed part by pressing the rebound part. When the movable part slides out, it drives the furniture flip-up door to automatically flip open on the furniture cabinet through the elastic force of the elastic part and / or its own opening inertia.

[0014] Among them, when the furniture flip-up door automatically flips open elastically and the second axis is located on the vertical line of the axis or offset from the vertical line of the axis by a certain vertical offset angle, the elastic force of the elastic member and the gravity of the pushing element and the furniture flip-up door offset each other, and the furniture flip-up door forms a certain automatic opening angle relative to the furniture cabinet.

[0015] When the furniture flip door is hingedly opened and closed relative to the furniture cabinet within the range from the closing terminal position to the automatic opening angle, the elastic force of the elastic member and the gravity of the push element and the furniture flip door offset each other, and the furniture flip door is suspended and opened and closed on the furniture cabinet.

[0016] When the furniture flip-up door is hingedly closed relative to the furniture cabinet within the range from the closing terminal position to the automatic opening angle, the furniture flip-up door is driven by a tool or manually to overcome the elastic force of the elastic member and is hingedly closed relative to the furniture cabinet, wherein when the second shaft portion is located on the axial straight line or offset from the axial straight line by a certain offset axial angle, the furniture flip-up door automatically closes on the furniture cabinet and / or rests against the press-rebound device by its own weight, and / or the gravity of the pushing element, and / or the elastic force of the elastic member.

[0017] When the movable part extends out of the fixed part and the second shaft portion is located on the axial straight line or offset from the axial straight line by a certain axial angle, the elastic force of the pressing and rebounding part is greater than the gravity of the pushing element, the furniture flip door and / or the elastic force of the elastic part. The furniture flip door is pressed against the pressing and rebounding device by its own weight, and / or the gravity of the pushing element, and / or the elastic force of the elastic part, and the movable part is driven to be positioned on the fixed part by a tool or manually driving the furniture flip door. The furniture flip door is always pressed against the movable part and automatically closed on the furniture cabinet.

[0018] The connecting arm assembly also includes a fourth connecting arm, a fifth connecting arm, and a sixth connecting arm; wherein, one end of the first connecting arm is hinged to the fixed element, the middle part is hinged to one end of the second connecting arm, the other end of the second connecting arm is hinged to one end of the third connecting arm, the middle part of the third connecting arm is cooperatively connected with the elastic member and hinged to the fixed element, the other end of the first connecting arm is hinged to one end of the fourth connecting arm, the middle part of the fourth connecting arm is hinged to the middle part of the fifth connecting arm, the other end of the fourth connecting arm is hinged to one end of the pushing element, one end of the fifth connecting arm is hinged to the fixed element, the other end of the fifth connecting arm is hinged to one end of the sixth connecting arm, and the other end of the sixth connecting arm is hinged to the middle part of the pushing element.

[0019] The pushing element is opened and closed on the fixing element through the coordinated elastic hinge connection of the first connecting arm, the second connecting arm, the third connecting arm, the fourth connecting arm, the fifth connecting arm, the sixth connecting arm and the elastic member.

[0020] The present invention has the following advantages compared with the prior art through the improvement of the above structure:

[0021] 1. The sliding element is connected with the furniture upper flip door, and the fixing element is connected with the furniture cabinet. At the same time, a connecting arm assembly and an elastic member are hinged between the sliding element and the fixing element. The furniture upper flip door is opened and closed on the furniture cabinet through the elastic flipping of the sliding element, the fixing element, the connecting arm assembly and the elastic member, which effectively simplifies the flipping and opening and closing structure between the furniture upper flip door and the furniture cabinet.

[0022] 2. During the flipping and opening and closing process, the furniture flip door drives the first axis, the second axis and the third axis to form different angles. Combined with the use of the press-rebound device, the furniture flip door can automatically flip and open relative to the furniture cabinet, automatically flip and close, and open and close and hover with each other, thereby improving the user experience, avoiding the high production cost disadvantage of adding handles to the furniture flip door, solving the problem that the furniture flip door cannot be automatically closed, and making the flipping and opening and closing process of the furniture flip door smooth, with less collision and low noise.

[0023] 3. When the furniture flip door automatically opens to a certain angle, due to the elastic force of the elastic member and the force arm relationship among the first axis, the second axis and the third axis, the elastic force of the elastic member and the gravity of the push element and the furniture flip door offset each other, and the furniture flip door can hover and open and close on the furniture cabinet at any time, thereby effectively solving the problem that the furniture flip door automatically closes due to excessive weight after being flipped open, affecting the user's use or even accidentally injuring the user, so that the furniture flip door can hover at will regardless of its size and weight, greatly meeting the use of furniture flip doors of different sizes, weights, and installation heights as well as users of different heights.

[0024] In general, it has the characteristics of simple and reasonable structure, safety and reliability, easy production, easy implementation, convenient use, compact connection between components, smooth opening and closing, small collision, low noise, etc., and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 FIG. 1 is a schematic diagram of the exploded structure of the first embodiment of the present invention.

[0026] Figure 2 It is a schematic diagram of the exploded structure of the pushing element, the fixing element, the connecting arm assembly and the elastic member of the first embodiment of the present invention.

[0027] Figure 3 It is a schematic diagram of the assembly structure of the pushing element, the fixing element, the connecting arm assembly and the elastic member according to the first embodiment of the present invention.

[0028] Figure 4-Figure 7 Schematic diagram of the opening and closing process of the furniture flip door according to the first embodiment of the present invention.

[0029] Figure 8 It is a schematic diagram of the assembly structure of the second embodiment of the present invention.

[0030] Fig. 9 It is a schematic diagram of the assembly structure of the third embodiment of the present invention. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] First embodiment:

[0033] See also Figure 1-Figure 7 The furniture has an automatic press-to-flip opening and closing structure, including a pushing element 1, a fixing element 2, a connecting arm assembly, and an elastic member 3. The connecting arm assembly at least includes a first connecting arm 4, a second connecting arm 5, and a third connecting arm 6. The first connecting arm 4 is hinged on the fixing element 2, and is hinged to one end of the pushing element 1 and the second connecting arm 5 respectively. The third connecting arm 6 is hinged on the fixing element 2 and is hinged to the other end of the second connecting arm 5. The elastic member 3 elastically acts on the third connecting arm 6. The pushing element 1 is opened and closed on the fixing element 2 through the elastic hinge of the connecting arm assembly and the elastic member 3.

[0034] When the push element 1 is hinged to a certain position relative to the fixed element 2 at the open terminal position, the elastic force of the elastic member 3 at least offsets the gravity of the push element 1 , and the push element 1 is suspended and opened on the fixed element 2 .

[0035] When the push element 1 is hingedly opened relative to the fixing element 2 in the closed end position, it is automatically hingedly opened on the fixing element 2 by the elastic force of the elastic element 3 .

[0036] When the pushing element 1 is in a certain open position relative to the fixed element 2, the pushing element 1 is pushed by an external force and driven to be hinged and closed relative to the fixed element 2. When the pushing element 1 is hinged and closed to a certain position, it is automatically closed on the fixed element 2 at least by its own weight and / or the elastic force of the elastic member 3.

[0037] A first shaft portion 7 is arranged between the first connecting arm 4 and the fixed element 2, and the two are hinged to each other through the first shaft portion 7; a second shaft portion 8 is arranged between the first connecting arm 4 and the second connecting arm 5, and the two are hinged to each other through the second shaft portion 8; a third shaft portion 9 is arranged between the second connecting arm 5 and the third connecting arm 6, and the two are hinged to each other through the third shaft portion 9; the elastic member 3 is a tension spring or a compression spring, and one end thereof elastically acts on the third connecting arm 6, and the other end elastically acts on the fixed element 2, and the tension spring or the compression spring generates an elastic force when the pushing element 1 is hinged to open and close.

[0038] When the push element 1 is hingedly opened and closed at a certain position relative to the fixed element 2 at the open terminal position, it drives the first, second and third connecting arms to be hinged to each other; wherein, when the push element 1 is hingedly opened and closed, the first shaft portion 7 forms a shaft portion vertical line 10 with the horizontal line, and when the second shaft portion 8 is located on the shaft portion vertical line 10 or offset from the shaft portion vertical line 10 by a certain vertical offset angle A, the elastic force of the elastic member 3 at least offsets the gravity of the push element 1, and the push element 1 is suspended and opened and closed on the fixed element 2; the vertical offset angle A is 0 degrees to 60 degrees when the push element 1 moves in the opening direction and / or 0 degrees to 20 degrees when the push element 1 moves in the closing direction.

[0039] When the push element 1 is in a certain open position relative to the fixed element 2, the push element 1 is pushed by a tool or manual action, and the push element 1 is hinged closed relative to the fixed element 2, and the first, second and third connecting arms are driven to hinge with each other when hinged closed; wherein, the axes of the first shaft portion 7, the second shaft portion 8 and the third shaft portion 9 form an axial straight line 11 when the push element 1 is hinged closed to a certain position, and when the second shaft portion 8 is located on the axial straight line 11 or deviates from the axial straight line 11 by a certain offset axial angle B, the push element 1 is automatically closed on the fixed element 2 at least by its own weight and / or the elastic force of the elastic member 3; the offset axial angle B is 0 degrees to 20 degrees and / or -20 degrees to 0 degrees.

[0040] The vertical offset angle A mentioned above occurs when the push element 1 is hinged to a certain position relative to the fixed element 2 from the open terminal position, and the second shaft portion 8 is located on the shaft portion vertical line 10 or the offset shaft portion vertical line 10, while the offset axis angle B occurs when the push element 1 is in a certain open position relative to the fixed element 2 and the push element 1 is driven to close by an external force, and the second shaft portion 8 is located on the axis center line 11 formed by the first shaft portion 7 and the third shaft portion 9 or the offset axis center line 11; therefore, the axis center vertical line 10 and the offset axis center line 11 will appear when the push element 1 is opened or closed, and their positions will change at any time, but the second shaft portion 8 is located on the axis center vertical line 10 and the offset axis center line 11, or the offset axis center vertical line 10 and the offset axis center line 11 appear specifically, so the appearance of the axis center vertical line 10 and the offset axis center line 11 do not interfere with each other.

[0041] The present structure also includes a furniture flip-up door 12 and a furniture cabinet 13, wherein the push element 1 is connected with the furniture flip-up door 12, and the fixing element 2 is connected with the furniture cabinet 13; the furniture flip-up door 12 is opened and closed on the furniture cabinet 13 by the elastic flipping of the push element 1, the fixing element 2, the connecting arm assembly, and the elastic member 3; the furniture cabinet 13 or the fixing element 2 is also provided with a pressing and rebounding device, and when the furniture flip-up door 12 is hingedly opened relative to the furniture cabinet 13 at the closed terminal position, it is automatically flipped and opened on the furniture cabinet 13 by the pressing of the pressing and rebounding device and the elastic force of the elastic member 3.

[0042] The push-rebound device includes a fixed component 14, a push-rebound component 15 and a movable component 16. A fixing hole is provided in the furniture cabinet 13. The fixed component 14 is fixedly arranged in the fixing hole of the furniture cabinet 13, and a heart-shaped groove 17 is provided thereon. One end of the push-rebound component 15 elastically acts on the fixed component 14, and the other end elastically acts on the movable component 16. The movable component 16 slides out of the fixed component 14 and / or is positioned in the fixed component 14 through the push-rebound component 15 along the trajectory of the heart-shaped groove 17; wherein, when the movable component 16 slides out, the elastic component 3 generates an elastic force in the direction of flipping and opening the furniture upper flip door 12, and drives the furniture upper flip door 12 to automatically open a certain angle relative to the furniture cabinet 13.

[0043] When the furniture flip door 12 is in the closed terminal position, the furniture flip door 12 is pressed by a tool or manually, and the furniture flip door 12 is driven to press and drive the movable part 16 to elastically slide out of the fixed part 14 along the trajectory of the heart-shaped groove 17 by pressing the rebound part 15. When the movable part 16 slides out, it drives the furniture flip door 12 to automatically and elastically flip and open on the furniture cabinet 13 through the elastic force of the elastic part 3 and / or its own opening inertia.

[0044] When the furniture flip-up door 12 automatically flips open elastically and the second shaft portion 8 is located on the shaft vertical line 10 or offset from the shaft vertical line 10 by a certain vertical offset angle A, the elastic force of the elastic member 3 and the gravity of the push element 1 and the furniture flip-up door 12 offset each other, and the furniture flip-up door 12 forms a certain automatic opening angle C relative to the furniture cabinet 13.

[0045] When the furniture flip door 12 is hingedly opened and closed relative to the furniture cabinet 13 within the range from the closed terminal position to the automatic opening angle C, the elastic force of the elastic member 3 and the gravity of the push element 1 and the furniture flip door 12 offset each other, and the furniture flip door 12 is suspended and opened and closed on the furniture cabinet 13.

[0046] When the furniture flip door 12 is hingedly closed relative to the furniture cabinet 13 in the range from the closing terminal position to the automatic opening angle C, the furniture flip door 12 is driven by a tool or manually to overcome the elastic force of the elastic member 3 and is hingedly closed relative to the furniture cabinet 13, wherein the second shaft portion 8 is located on the axial straight line 11 or offset from the axial straight line 11 by a certain offset axial angle B, the furniture flip door 12 automatically closes on the furniture cabinet 13 and / or rests on the press-rebound device by its own weight, and / or the gravity of the push element 1, and / or the elastic force of the elastic member 3.

[0047] When the movable part 16 extends out of the fixed part 14 and the second shaft portion 8 is located on the axial straight line 11 or offset from the axial straight line 11 by a certain offset axial angle B, the elastic force of the pressing and rebounding member 15 is greater than the weight of the pushing element 1, the gravity of the furniture flip door 12 and / or the elastic force of the elastic member 3. The furniture flip door 12 is pressed against the pressing and rebounding device by its own weight, and / or the gravity of the pushing element 1, and / or the elastic force of the elastic member 3, and the movable part 16 is driven by a tool or manually to be positioned on the fixed part 14. The furniture flip door 12 is always pressed against the movable part 16 and automatically closed on the furniture cabinet 13.

[0048] The connecting arm assembly also includes a fourth connecting arm 18, a fifth connecting arm 19, and a sixth connecting arm 20; wherein, one end of the first connecting arm 4 is hinged to the fixed element 2, and the middle part is hinged to one end of the second connecting arm 5, the other end of the second connecting arm 5 is hinged to one end of the third connecting arm 6, the middle part of the third connecting arm 6 is cooperatively connected with the elastic member 3 and hinged to the fixed element 2, the other end of the first connecting arm 4 is hinged to one end of the fourth connecting arm 18, the middle part of the fourth connecting arm 18 is hinged to the middle part of the fifth connecting arm 19, the other end of the fourth connecting arm 18 is hinged to one end of the pushing element 1, one end of the fifth connecting arm 19 is hinged to the fixed element 2, the other end of the fifth connecting arm 19 is hinged to one end of the sixth connecting arm 20, and the other end of the sixth connecting arm 20 is hinged to the middle part of the pushing element 1.

[0049] The push element 1 is opened and closed on the fixed element 2 through the coordinated elastic hinge connection of the first connecting arm 4 , the second connecting arm 5 , the third connecting arm 6 , the fourth connecting arm 18 , the fifth connecting arm 19 , the sixth connecting arm 20 and the elastic member 3 .

[0050] Second embodiment:

[0051] See also Figure 8 The furniture has an automatic push-up flip-up opening and closing structure, which is different from the first embodiment in that a fixing part is provided on the fixing component 14 and is fixed on the furniture cabinet 13 through the fixing part.

[0052] Other parts not described are the same as those in the first embodiment.

[0053] Third embodiment:

[0054] See also Fig. 9 The furniture has an automatic push-up flip-up opening and closing structure, which is different from the first embodiment in that a fixing portion is provided between the fixing component 14 and the fixing element 2, and the two are fixed to each other through the fixing portion.

[0055] Other parts not described are the same as those in the first embodiment.

[0056] The accompanying drawings are only for illustrative purposes and are schematic diagrams rather than actual drawings, and should not be construed as limitations on this patent. In order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. It is understandable to those skilled in the art that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0057] Moreover, the same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "lateral", "longitudinal", "top", "bottom", "inside", "outside" and the like indicating orientations or positional relationships, they are all based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent.

Claims

1. An automatic push-up opening and closing structure for furniture, comprising a pushing element (1), a fixing element (2), a connecting arm assembly, and an elastic member (3), characterized in that: The connecting arm assembly at least comprises a first connecting arm (4), a second connecting arm (5) and a third connecting arm (6); the first connecting arm (4) is hinged on the fixed element (2) and is respectively hinged to the push element (1) and one end of the second connecting arm (5); the third connecting arm (6) is hinged on the fixed element (2) and is hinged to the other end of the second connecting arm (5); the elastic member (3) elastically acts on the third connecting arm (6); the push element (1) is elastically hinged to open and close on the fixed element (2) through the coordinated elastic hinge of the connecting arm assembly and the elastic member (3); when the push element (1) is hinged to open and close a certain position relative to the fixed element (2) at the open terminal position, the elastic member (3) is elastically hinged to open and close the push element (1) to the fixed element (2) at the open terminal position. The elastic force of the elastic member (3) at least offsets the gravity of the push element (1), and the push element (1) is suspended and opened on the fixed element (2); when the push element (1) is hinged and opened relative to the fixed element (2) at the closed terminal position, it is automatically hinged and opened on the fixed element (2) by the elastic force of the elastic member (3); when the push element (1) is in a certain open position relative to the fixed element (2), the push element (1) is pushed by an external force and driven to be hinged and closed relative to the fixed element (2); when the push element (1) is hinged and closed to a certain position, it is automatically closed on the fixed element (2) at least by its own weight and / or the elastic force of the elastic member (3); A first shaft portion (7) is provided between the first connecting arm (4) and the fixed element (2), and the two are hinged to each other via the first shaft portion (7); a second shaft portion (8) is provided between the first connecting arm (4) and the second connecting arm (5), and the two are hinged to each other via the second shaft portion (8); a third shaft portion (9) is provided between the second connecting arm (5) and the third connecting arm (6), and the two are hinged to each other via the third shaft portion (9); the elastic member (3) is a tension spring or a compression spring, and one end of the elastic member acts on the third connecting arm (6) and the other end acts on the fixed element (2), and the tension spring or the compression spring generates an elastic force when the push element (1) is hingedly opened or closed; The push element (1) drives the first, second and third connecting arms to be hinged to each other when the push element (1) is hinged to a certain position relative to the fixed element (2) at the open terminal position; wherein, when the push element (1) is hinged to open and close, the first shaft portion (7) forms a shaft portion vertical line (10) between the first shaft portion (7) and the horizontal line; when the second shaft portion (8) is located on the shaft portion vertical line (10) or deviates from the shaft portion vertical line (10) by a certain vertical offset angle (A), the elastic force of the elastic member (3) at least offsets the gravity of the push element (1), and the push element (1) is suspended and opened and closed on the fixed element (2); the vertical offset angle (A) is 0 to 60 degrees when the push element (1) moves in the opening direction and / or 0 to 20 degrees when the push element (1) moves in the closing direction.

2. The automatic push-up opening and closing structure for furniture according to claim 1, characterized in that: When the push element (1) is in a certain open position relative to the fixed element (2), the push element (1) is pushed by a tool or manually, and the push element (1) is hinged closed relative to the fixed element (2), and when hinged closed, the first, second and third connecting arms are driven to hinge with each other; wherein, when the push element (1) is hinged closed to a certain position, the axes of the first shaft portion (7), the second shaft portion (8) and the third shaft portion (9) form an axial straight line (11), and when the second shaft portion (8) is located on the axial straight line (11) or deviates from the axial straight line (11) by a certain offset axial angle (B), the push element (1) is automatically closed on the fixed element (2) at least by its own weight and / or the elastic force of the elastic member (3); the offset axial angle (B) is 0 to 20 degrees and / or -20 to 0 degrees.

3. The automatic push-up opening and closing structure for furniture according to claim 1, characterized in that: The invention also comprises a furniture flip-up door (12) and a furniture cabinet (13), wherein a push element (1) is cooperatively connected to the furniture flip-up door (12), and a fixing element (2) is cooperatively connected to the furniture cabinet (13); the furniture flip-up door (12) is opened and closed on the furniture cabinet (13) by the cooperation and elasticity of the push element (1), the fixing element (2), the connecting arm assembly, and the elastic element (3); a pressing and rebounding device is also provided on the furniture cabinet (13) or the fixing element (2); when the furniture flip-up door (12) is hingedly opened relative to the furniture cabinet (13) at the closed terminal position, it is automatically flipped and opened on the furniture cabinet (13) by the pressing of the pressing and rebounding device and the elastic force of the elastic element (3).

4. The automatic push-up opening and closing structure for furniture according to claim 3, characterized in that: The push-rebound device comprises a fixed component (14), a push-rebound member (15) and a movable component (16); the fixed component (14) is arranged on a furniture cabinet (13) or a fixed element (2) and is provided with a heart-shaped groove (17); one end of the push-rebound member (15) elastically acts on the fixed component (14) and the other end elastically acts on the movable component (16); the movable component (16) slides out of the fixed component (14) and / or is positioned in the fixed component (14) along the track of the heart-shaped groove (17) through the push-rebound member (15); wherein the elastic member (3) generates an elastic force in the direction of flipping and opening the furniture upper flip door (12) when the movable component (16) slides out, and drives the furniture upper flip door (12) to automatically open a certain angle relative to the furniture cabinet (13).

5. The automatic push-up opening and closing structure for furniture according to claim 4, characterized in that: When the furniture flip door (12) is in a closed terminal position, the furniture flip door (12) is pressed by a tool or manually, and the furniture flip door (12) is driven to press and drive the movable part (16) to slide elastically out of the fixed part (14) along the track of the heart-shaped groove (17) by pressing the rebound part (15), and the movable part (16) drives the furniture flip door (12) to automatically flip open on the furniture cabinet (13) through the elastic force of the elastic part (3) and / or its own opening inertia when sliding out; wherein, when the furniture flip door (12) automatically flips open elastically and the second shaft part (8) is located on the shaft part vertical line (10) or offset from the shaft part vertical line (10) by a certain vertical offset angle (A), the elastic force of the elastic part (3) and the gravity of the push element (1) and the furniture flip door (12) offset each other, and the furniture flip door (12) forms an automatic opening angle (C) relative to the furniture cabinet (13).

6. The automatic push-up opening and closing structure for furniture according to claim 4, characterized in that: When the furniture flip door (12) is hingedly opened and closed relative to the furniture cabinet (13) within the range from the closing terminal position to the automatic opening angle (C), the elastic force of the elastic member (3) and the gravity of the push element (1) and the furniture flip door (12) offset each other, and the furniture flip door (12) is suspended and opened and closed on the furniture cabinet (13); when the furniture flip door (12) is hingedly closed relative to the furniture cabinet (13) within the range from the closing terminal position to the automatic opening angle (C), the elastic force of the elastic member (3) and the gravity of the push element (1) and the furniture flip door (12) are offset each other, and the furniture flip door (12) is suspended and opened and closed on the furniture cabinet (13); The furniture flip door (12) is driven by a tool or manually to overcome the elastic force of the elastic member (3) and is hingedly closed relative to the furniture cabinet (13), wherein when the second shaft portion (8) is located on the axial straight line (11) or offset from the axial straight line (11) by a certain offset axial angle (B), the furniture flip door (12) is automatically closed on the furniture cabinet (13) and / or abuts against the pressing rebound device by its own weight and / or the gravity of the push element (1) and / or the elastic force of the elastic member (3).

7. The automatic push-up opening and closing structure for furniture according to claim 5, characterized in that: When the movable part (16) extends out of the fixed part (14) and the second shaft part (8) is located on the axial straight line (11) or offset from the axial straight line (11) by a certain offset axial angle (B), the elastic force of the pressing and rebounding part (15) is greater than the weight of the pushing element (1), the weight of the furniture flip door (12) and / or the elastic force of the elastic part (3), the furniture flip door (12) abuts against the pressing and rebounding device by its own weight and / or the weight of the pushing element (1) and / or the elastic force of the elastic part (3), and the movable part (16) is driven by a tool or manually to be positioned on the fixed part (14), and the furniture flip door (12) always abuts against the movable part (16) and is automatically closed on the furniture cabinet (13).

8. The automatic push-up opening and closing structure for furniture according to claim 1, characterized in that: The connecting arm assembly also includes a fourth connecting arm (18), a fifth connecting arm (19), and a sixth connecting arm (20); wherein, one end of the first connecting arm (4) is hinged to the fixing element (2), and the middle part is hinged to one end of the second connecting arm (5); the other end of the second connecting arm (5) is hinged to one end of the third connecting arm (6); the middle part of the third connecting arm (6) is cooperatively connected to the elastic member (3) and hinged to the fixing element (2); the other end of the first connecting arm (4) is hinged to one end of the fourth connecting arm (18); the middle part of the fourth connecting arm (18) is hinged to the middle part of the fifth connecting arm (19); The other end of the fourth connecting arm (18) is hinged to one end of the pushing element (1), one end of the fifth connecting arm (19) is hinged to the fixed element (2), the other end of the fifth connecting arm (19) is hinged to one end of the sixth connecting arm (20), and the other end of the sixth connecting arm (20) is hinged to the middle part of the pushing element (1); the pushing element (1) is opened and closed on the fixed element (2) through the coordinated elastic hinge of the first connecting arm (4), the second connecting arm (5), the third connecting arm (6), the fourth connecting arm (18), the fifth connecting arm (19), the sixth connecting arm (20), and the elastic member (3).

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