A stable assembly structure for an embedded hinge

Abstract

The present invention relates to a stable assembly structure of an embedded hinge, which includes a fixed element and a hinge cup that is hinged to open and close on a bracket through a connecting arm assembly. An assembly cavity is provided on the fixed element, and a longitudinal hole is provided on the assembly cavity. The bracket is assembled in the assembly cavity, and a positioning hole is provided on the bracket. The positioning hole corresponds to the longitudinal hole, and a positioning member is further provided between the positioning hole and the longitudinal hole. The positioning member acts on the longitudinal hole and the positioning hole during the assembly of the bracket to achieve stable assembly between the bracket and the fixed element. When the bracket and the fixed element are assembled, the limiting effect of the assembly cavity and the vertical positioning effect between the positioning member and the fastening member are utilized, and finally multiple stable assemblies are achieved. Not only can the doors and windows equipped with the hinges of this structure be opened and closed smoothly, without collision and noise, but also because the hinges can achieve stable assembly, their load-bearing effect can be improved, and thus they can be widely applied to doors and windows with large volume and weight.

Description

Technical Field

[0001] The present invention relates to a stable assembly structure for an embedded hinge. Background Art

[0002] The patent publication number of the applicant is CN209509819U, which discloses an assembly structure for an embedded hinge on October 18, 2019. It includes a furniture cabinet body, a furniture door body, a hinge device and a pre-installed component. The hinge device at least includes a hinge cup and a fixing bracket. The pre-installed component is provided with a positioning groove part, at least two hinge cup pre-installation parts and at least two furniture pre-installation parts; the hinge cup is buried and positioned on the positioning groove part. The pre-installed component is fixedly connected with the hinge cup through at least two hinge cup pre-installation parts, and the pre-installed component is fixedly connected with the furniture door body through at least two furniture pre-installation parts. An assembly groove is provided on the furniture cabinet body, and the fixing bracket is buried and fixedly arranged on the assembly groove. When the above hinge is assembled, it will first be buried in the assembly groove of the furniture cabinet body, and then rely on a fastener to be fixed to the furniture cabinet body; due to the special use of the embedded hinge, the entire furniture door body can only be installed on the furniture cabinet body through the upper and lower two hinges. Therefore, during the opening and closing process of the furniture door body, its overall weight will act entirely on the upper and lower two hinges. Also, since the hinge is only fixed by being buried in the assembly groove and a single fastener, it will cause the assembly of the furniture door body to be unstable. At the same time, the direction of the fastening action of the fastener is basically parallel to the opening and closing direction of the furniture door body. When the furniture door body is opened and closed for a long time, the hinge is likely to loosen or break away from the assembly groove, affecting the opening and closing stability of the furniture door body. In severe cases, it will even cause the furniture door body to fall. Therefore, it is necessary to further improve. Summary of the Invention

[0003] The purpose of the present invention is to provide a stable assembly structure for an embedded hinge with a simple and reasonable structure, reliable performance, low manufacturing cost, easy production implementation, wide application range, stable and firm assembly, smooth, collision-free, noiseless and safe opening and closing, so as to overcome the deficiencies in the prior art.

[0004] A stable assembly structure for an embedded hinge designed according to this purpose includes a hinge cup that is hinged and opened and closed on a bracket through a connecting arm assembly, and is characterized in that: it further includes a fixing element, which is provided with an assembly cavity, and a longitudinal hole is provided on the assembly cavity; the bracket is assembled in the assembly cavity, and a positioning hole is provided on it, and the positioning hole corresponds to the longitudinal hole; a positioning member is further provided between the positioning hole and the longitudinal hole, and the positioning member acts on the longitudinal hole and the positioning hole during the assembly of the bracket to achieve a stable assembly between the bracket and the fixing element.

[0005] At least one longitudinal hole is provided and is provided in a through manner at the upper and lower positions of the assembly cavity.

[0006] The directions in which the longitudinal holes, positioning holes, and positioning members are provided are perpendicular to the direction in which the hinge cup is hinged and opened / closed.

[0007] A positioning portion is provided on the bracket; a positioning and mating portion is provided on the fixing element and / or the assembly cavity; the bracket is embedded in the assembly cavity and is positioned on the fixing element through the cooperation of the positioning and mating portion and the positioning portion.

[0008] The fixing element is integrally formed of a metal material or a non-metal material, an assembly cavity is provided inside it, and an opening portion is provided on the side; the longitudinal hole, the opening portion, and the assembly cavity communicate with each other; the bracket is embedded in the assembly cavity through the opening portion.

[0009] An assembly hole is provided on the bracket, a spacing is formed between the assembly hole and the positioning hole, and a fastener is provided thereon; the fastener acts on the assembly hole tightly during the assembly of the bracket and penetrates and acts on the fixing element tightly.

[0010] The directions in which the assembly hole and the fastener are provided are perpendicular to the directions in which the longitudinal hole, the positioning hole, and the positioning member are provided.

[0011] At least two hinge cup fixing holes for fixed assembly are provided on the hinge cup; a spacing is formed between the at least two hinge cup fixing holes.

[0012] The bracket is made of a metal material and there are two brackets, namely a left bracket and a right bracket. Positioning holes are respectively provided on the left and right brackets, and a fixing member is also provided between the left and right brackets.

[0013] The fixing member acts on the positioning holes of the left and right brackets to realize the fixed connection between the left and right brackets.

[0014] And / or, fixing member acting holes are respectively provided on the left and right brackets; the fixing member acts on the fixing member acting holes of the left and right brackets to realize the fixed connection between the left and right brackets.

[0015] An assembly part is further provided between the left and right brackets; the connecting arm assembly includes an outer connecting arm and an inner connecting arm; one end of the outer connecting arm is hinged to the hinge cup, a first hinge auxiliary part is provided at the other end, and the outer connecting arm is hinged to the assembly part in a rolling manner, or a rotating manner, or a sliding manner through the first hinge auxiliary part; one end of the inner connecting arm is hinged to the hinge cup, a second hinge auxiliary part is provided at the other end, and the inner connecting arm is hinged to the assembly part in a rolling manner, or a rotating manner, or a sliding manner through the second hinge auxiliary part.

[0016] An elastic member, a damper, and a linear groove are further provided on the assembly part; an elastic acting part is provided on the outer connecting arm.

[0017] When the outer connecting arm is hinged and opened or closed at a certain position relative to the bracket and / or the fitting by the hinge cup, the outer connecting arm interacts with the elastic member through the elastic acting portion, so as to realize the elastic hinged opening and closing between the hinge cup and the bracket and / or the fitting.

[0018] A connecting portion is arranged on the outer connecting arm, and a transmission member is rotatably connected through the connecting portion; the damper is an automatic reset damper or a non-automatic reset damper, one end of the damper is positioned on the fitting, the other end is rotatably connected with the transmission member, and the damper is slidably arranged on the linear groove.

[0019] When the outer connecting arm is in a certain position where the hinge cup is hinged and closed relative to the bracket, the outer connecting arm acts through the transmission member and drives the end of the damper to slide along the linear groove. The damper generates a damping force when sliding, so as to realize the damping hinged closing between the hinge cup and the bracket and / or the fitting.

[0020] Through the improvement of the above structure, the bracket is assembled in the assembly cavity of the fixing element, so that a first-level positioning and assembly effect is formed between the bracket and the fixing element. Subsequently, the positioning member acting longitudinally is positioned on the longitudinal hole and the positioning hole, so that a second-level positioning and assembly effect is formed between the bracket and the fixing element. Finally, the fastener acting transversely is fastened on the assembly hole of the bracket and the fixing element, so that a third-level positioning and assembly effect is formed between the bracket and the fixing element; that is, when the bracket and the fixing element are assembled, the limiting effect of the assembly cavity and the vertical positioning effect between the positioning member and the fastener are utilized, and finally a multiple stable assembly is realized. Not only can the doors and windows equipped with this structure hinge be opened and closed smoothly, without collision and noise, but also because the hinge can achieve stable assembly, its load-bearing effect can be improved, and thus it can be widely applied to doors and windows with large volume and weight, improving the use range of the hinge and the user experience. Description of the Drawings

[0021] Figure 1 It is a schematic exploded view of a hinge, a fixing element, a furniture door body and a furniture cabinet body according to an embodiment of the present invention.

[0022] Figure 2 It is a schematic assembled view of a hinge, a fixing element, a furniture door body and a furniture cabinet body according to an embodiment of the present invention.

[0023] Figure 3 It is a schematic cross-sectional assembled view of a hinge, a fixing element, a furniture door body and a furniture cabinet body according to an embodiment of the present invention.

[0024] Figure 4 It is another schematic cross-sectional assembled view of a hinge, a fixing element, a furniture door body and a furniture cabinet body according to an embodiment of the present invention.

[0025] Figure 5Schematic diagram of the exploded structure of the hinge and fixing element according to an embodiment of the present invention.

[0026] Figure 6 Schematic diagram of the exploded structure of the hinge according to an embodiment of the present invention.

[0027] Figure 7 Schematic diagram of the exploded structure of the hinge according to an embodiment of the present invention (the hinge cup and bracket are omitted).

[0028] Figure 8 Schematic diagram of the open state structure of the hinge according to an embodiment of the present invention.

[0029] Figure 9 Schematic diagram of the closed state structure of the hinge according to an embodiment of the present invention. Detailed implementation manners

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] Refer to Figures 1-9 , the stable assembly structure of the built-in hinge includes a fixing element 20 and a hinge cup 1 that is hinged to open and close on a bracket 2 through a connecting arm assembly. Among them, the hinge of this structure can be used for opening and closing doors and windows. In this embodiment, the installation between a furniture door body X and a furniture cabinet body Y is used for illustration.

[0032] Specifically, a groove is provided on the furniture door body X, and the hinge cup 1 is embedded in the groove and fixedly connected to the furniture door body X; an assembly part is provided on the furniture cabinet body Y; the fixing element 20 is fixedly arranged on the assembly part.

[0033] An assembly cavity 21 is provided on the fixing element 20, and a longitudinal hole 22 is provided on the assembly cavity 21; the bracket 2 is assembled in the assembly cavity 21 and a positioning hole 23 is provided thereon, and the positioning hole 23 corresponds to the longitudinal hole 22; a positioning member 24 is further provided between the positioning hole 23 and the longitudinal hole 22, and this positioning member 24 acts on the longitudinal hole 22 and the positioning hole 23 during the assembly of the bracket 2 to realize the stable assembly between the bracket 2 and the fixing element 20.

[0034] Furthermore, at least one longitudinal hole 22 is provided and is provided in a through manner at the upper and lower positions of the assembly cavity 21. The through longitudinal hole 22 can improve the assembly versatility between the bracket 2 and the fixing element 20, that is, the positioning member 24 can act on the longitudinal hole 22 and the positioning hole 23 from top to bottom, or the positioning member 24 can act on the longitudinal hole 22 and the positioning hole 23 from bottom to top.

[0035] To make the assembly of the bracket 2 and the fixing element 20 more reasonable, a positioning portion 25 is provided on the bracket 2; a positioning and mating portion 26 is provided on the fixing element 20 and / or the assembly cavity 21; the bracket 2 is embedded in the assembly cavity 21 and is positioned on the fixing element 20 through the cooperation of the positioning and mating portion 26 and the positioning portion 25.

[0036] The fixing element 20 is integrally formed of a metal material or a non-metal material. To improve the structural strength, the fixing element 20 in this embodiment is integrally formed of a metal material, and an assembly cavity 21 is provided inside it, and an opening portion 27 is provided on the side; the longitudinal hole 22, the opening portion 27, and the assembly cavity 21 communicate with each other; the bracket 2 is embedded in the assembly cavity 21 through the opening portion 27.

[0037] An assembly hole 28 is provided on the bracket 2, and a distance is formed between the assembly hole 28 and the positioning hole 23, and a fastener 29 is provided thereon; the fastener 29 acts on the assembly hole 28 during the assembly of the bracket 2 and penetrates and acts on the fixing element 20, and finally acts on the furniture cabinet body Y, that is, one fastener 29 can realize the assembly of the bracket 2, the fixing element 20, and the furniture cabinet body Y, with a simple structure, easy assembly, and low production cost.

[0038] The directions in which the assembly hole 28 and the fastener 29 are provided are perpendicular to the directions in which the longitudinal hole 22, the positioning hole 23, and the positioning member 24 are provided. At the same time, the directions in which the longitudinal hole 22, the positioning hole 23, and the positioning member 24 are provided are perpendicular to the direction in which the hinge cup 1 is hinged and opened and closed.

[0039] That is, the bracket 2 is assembled in the assembly cavity 21 of the fixing element 20 to form a first-level positioning and assembly effect between the bracket 2 and the fixing element 20. Subsequently, the longitudinally acting positioning member 24 is used to position and act on the longitudinal hole 22 and the positioning hole 23 to form a second-level positioning and assembly effect between the bracket 2 and the fixing element 20. Finally, the transversely acting fastener 29 is used to act on the assembly hole 28 of the bracket 2 and the fixing element 20 to form a third-level positioning and assembly effect between the bracket 2 and the fixing element 20.

[0040] Furthermore, when the bracket 2 and the fixing element 20 are assembled, the limiting effect of the assembly cavity 21 and the vertical positioning effect between the positioning member 24 and the fastening member 29 are utilized, and multiple stable assemblies can be finally achieved. Not only can the furniture door body equipped with this structural hinge be opened and closed smoothly, without collision and noise on the furniture cabinet body Y, but also the problem that the hinge assembly in the prior art has poor stability, affecting the opening and closing effect of the furniture door body X and the furniture door body X is likely to fall off the furniture cabinet body Y is effectively avoided. Moreover, since the hinge can achieve a stable assembly, its load-bearing effect can be improved, and thus it can be widely applied to the furniture door body X with a large volume and weight, improving the application range of the hinge and the user experience.

[0041] In order to make the assembly between the hinge cup 1 and the furniture door body X more stable, at least two hinge cup fixing holes 30 for fixed assembly are provided on the hinge cup 1; a spacing is formed between the at least two hinge cup fixing holes 30. The at least two hinge cup fixing holes 30 forming a spacing can evenly bear the force exerted by the furniture door body X on the hinge cup 1, thereby ensuring a stable assembly between the hinge cup 1 and the furniture door body X.

[0042] The bracket 2 is made of a metal material and there are two brackets 2 on the left and right. Positioning holes 23 are respectively provided on the two brackets 2 on the left and right, and a fixing member 31 is also provided between the two brackets 2 on the left and right.

[0043] The fixing member 31 acts on the positioning holes 23 of the two brackets 2 on the left and right to realize the fixed connection between the two brackets 2 on the left and right. That is, both the fixing member 31 and the positioning member 24 act on the common positioning hole 23, and the installation between the two brackets 2 on the left and right and the fixing element 20 is realized without changing the original structure of the hinge. The structure is simple and reasonable, and the production cost is low.

[0044] In addition, fixing member acting holes can be respectively provided on the two brackets 2 on the right; the fixing member 31 acts on the fixing member acting holes of the two brackets 2 on the left and right to realize the fixed connection between the two brackets 2 on the left and right.

[0045] An assembly member 32 is also provided between the two brackets 2 on the left and right; the connecting arm assembly includes an outer connecting arm 4 and an inner connecting arm 12; one end of the outer connecting arm 4 is hinged to the hinge cup 1, the other end is provided with a first hinge auxiliary member 16, and is hinged to the assembly member 32 in a rolling manner, or a rotating manner, or a sliding manner through the first hinge auxiliary member 16; one end of the inner connecting arm 12 is hinged to the hinge cup 1, the other end is provided with a second hinge auxiliary member 17, and is hinged to the assembly member 32 in a rolling manner, or a rotating manner, or a sliding manner through the second hinge auxiliary member 17.

[0046] That is, when the hinge cup 1 is hinged and opened or closed relative to the bracket 2, the outer connecting arm 4 and the inner connecting arm 12 and the fitting 32 will be hinged and cooperated with each other through the first hinge auxiliary 16 and the second hinge auxiliary 17 respectively to achieve the hinge assistance between each other. This shows that the first and second hinge auxiliaries can partially bear the acting forces on the outer connecting arm 4 and the inner connecting arm 12 during operation, thus effectively avoiding the problems of bending deformation and fracture of the outer connecting arm 4 and the inner connecting arm 12 due to large acting forces during use, improving the service life of the product. At the same time, since the first and second hinge auxiliaries can bear the acting forces, the overall bearing capacity of the hinge can also be improved, and further enabling it to be widely applicable to the relatively large-sized and heavy furniture door body X; through experiments, it is known that only two hinges of this structure need to be installed to install and use the furniture door body X with a weight of up to 30 KG.

[0047] The first hinge auxiliary 16 and the second hinge auxiliary 17 of this embodiment are balls. After being assembled, they are located between the fitting 32 and the outer connecting arm 4 and the inner connecting arm 12, which can reduce the assembly gap between the above components, improve the assembly compactness between each component, not only can reduce the overall assembly volume of the hinge, but also can improve its assembly texture and structural stability.

[0048] An elastic member 3, a damper 10 and a linear groove 8 are further provided on the fitting 32; an elastic acting portion 5 is provided on the outer connecting arm 4.

[0049] When the hinge cup 1 is hinged and opened or closed relative to the bracket 2 and / or the fitting 32 to a certain position, the outer connecting arm 4 interacts with the elastic member 3 through the elastic acting portion 5 to achieve the elastic hinged opening and closing between the hinge cup 1 and the bracket 2 and / or the fitting 32.

[0050] A connecting portion 7 is provided on the outer connecting arm 4, and a transmission member 6 is rotatably connected through the connecting portion 7; the damper 10 is an automatic reset damper or a non-automatic reset damper, and one end of it is positioned on the fitting 32, and the other end is rotatably connected to the transmission member 6 and slidably arranged on the linear groove 8.

[0051] When the hinge cup 1 is hinged and closed relative to the bracket 2 to a certain position, the outer connecting arm 4 acts through the transmission member 6 and drives the end portion of the damper 10 to slide guidingly on the linear groove 8. The damper 10 generates a damping force during sliding to achieve the damping hinged closing between the hinge cup 1 and the bracket 2 and / or the fitting 32.

[0052] When the hinge is assembled and used, the outer connecting arm 4 interacts with the elastic member 3 and the damper 10 through the elastic acting portion 5 and the transmission member 6 respectively. That is, the elastic acting force generated by the elastic member 3 and the damping force generated by the damper 10 can be applied on the same outer connecting arm 4. Therefore, the generation of the elastic acting force and the damping force is more direct, so that the hinge cup 1 can be hinged open and closed and damped closed on the bracket 2 smoothly, without collision and noise, improving the user experience.

[0053] Moreover, due to the direct action of the force, the hinge can further bear a greater load-bearing capacity and also generate a better damping buffer force when closing, so that the hinge can be assembled and used with a furniture door body X with a larger size and weight.

[0054] During operation, when the hinge cup 1 is hinged open and closed relative to the bracket 2 by a certain position, the outer connecting arm 4 will interact with the elastic member 3 through the elastic acting portion 5, and the elastic hinged opening and closing of the hinge cup 1 relative to the bracket 2 can be realized, enabling the user to conveniently and quickly open and / or close the hinge cup 1. When the hinge cup 1 is hinged closed relative to the bracket 2 by a certain position, the outer connecting arm 4 will interact with the damper 10 through the transmission member 6, and the damped hinged closing of the hinge cup 1 relative to the bracket 2 can be realized, avoiding the mutual collision between the hinge cup 1 and the bracket 2 when closing, thereby prolonging the service life of the hinge, improving the user experience, and also enabling the hinge to achieve a smooth, collision-free and noise-free effect when opening and closing.

[0055] The linear groove 8 enables the transmission member 6 and the damper 10 to perform guided linear sliding at a specified position, which not only further improves the connection compactness between components, but also improves the assembly stability between them, making the damping force generated by the damper 10 more stable and reasonable.

[0056] And, since the outer connecting arm 4 directly interacts with the elastic member 3 and the damper 10, the overall structure of the hinge can be simplified, which not only improves the connection compactness between components, reduces the assembly size, but also can reduce the production cost and simplify the assembly process.

[0057] The above is the preferred solution of the present invention, showing and describing the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A stable assembly structure of an embedded hinge, comprising a hinge cup (1) hinged to open and close on a bracket (2) through a connecting arm assembly, characterized in that: It further includes a fixing element (20) on which an assembly cavity (21) is provided, and a longitudinal hole (22) is provided on the assembly cavity (21); the bracket (2) is assembled in the assembly cavity (21), and a positioning hole (23) is provided thereon, and the positioning hole (23) corresponds to the longitudinal hole (22); a positioning member (24) is further provided between the positioning hole (23) and the longitudinal hole (22), and the positioning member (24) acts on the longitudinal hole (22) and the positioning hole (23) for positioning when the bracket (2) is assembled, so as to realize the stable assembly between the bracket (2) and the fixing element (20); An assembly hole (28) is provided on the bracket (2), and a spacing is formed between the assembly hole (28) and the positioning hole (23), and a fastener (29) is provided thereon; The directions in which the assembly hole (28) and the fastener (29) are provided are perpendicular to the directions in which the longitudinal hole (22), the positioning hole (23), and the positioning member (24) are provided; The cabinet body (Y) includes a top plate and a bottom plate, and hollow positions for installing the fixing element (20) are provided on the top plate and the bottom plate. The fixing element (20) is correspondingly installed in the hollow positions of the top plate and the bottom plate, so that the fixing element (20) forms a part of the top plate and the bottom plate. The fastener (29) acts on the assembly hole (28) for fastening when the bracket (2) is assembled, and penetrates and fastens the fixing element (20); and finally fastens to the furniture cabinet body (Y). One fastener (29) can realize the assembly of the bracket (2), the fixing element (20), and the furniture cabinet body (Y).

2. The stable assembly structure of the embedded hinge according to claim 1, wherein: At least one longitudinal hole (22) is provided, and it is provided in a through manner at the upper and lower positions of the assembly cavity (21).

3. The stable assembly structure of the embedded hinge according to claim 1, characterized in that: The directions in which the longitudinal hole (22), the positioning hole (23), and the positioning member (24) are provided are perpendicular to the direction in which the hinge cup (1) is hinged and opened and closed.

4. The stable assembly structure of the embedded hinge according to claim 1, characterized in that: A positioning portion (25) is provided on the bracket (2); a positioning and mating portion (26) is provided on the fixing element (20) and / or the assembly cavity (21); the bracket (2) is embedded in the assembly cavity (21), and is positioned on the fixing element (20) through the cooperation of the positioning and mating portion (26) and the positioning portion (25).

5. The stable assembly structure of the embedded hinge according to claim 1, characterized in that: The fixing element (20) is integrally formed of a metal material or a non-metal material, an assembly cavity (21) is provided inside it, and an opening portion (27) is provided on the side; the longitudinal hole (22), the opening portion (27), and the assembly cavity (21) communicate with each other; the bracket (2) is embedded in the assembly cavity (21) through the opening portion (27).

6. The stable assembly structure of the embedded hinge according to claim 1, characterized in that: At least two hinge cup fixing holes (30) for fixed assembly are provided on the hinge cup (1); a spacing is formed between the at least two hinge cup fixing holes (30); The bracket (2) is made of a metal material and there are two brackets (2) on the left and right. Positioning holes (23) are respectively provided on the two brackets (2) on the left and right, and a fixing member (31) is further provided between the two brackets (2) on the left and right; The fixing member (31) acts on the positioning holes (23) of the two brackets (2) on the left and right to realize the fixed connection between the two brackets (2) on the left and right; And / or, fixing part action holes are respectively arranged on the left and right brackets (2); the fixing part (31) acts and fixes on the fixing part action holes of the left and right brackets (2) to realize the fixed connection between the left and right brackets (2).

7. The stable assembly structure of the embedded hinge according to claim 6, wherein: An assembly part (32) is further arranged between the left and right brackets (2); the connecting arm assembly includes an outer connecting arm (4) and an inner connecting arm (12); one end of the outer connecting arm (4) is hinged to the hinge cup (1), the other end is provided with a first hinge auxiliary part (16), and is hinged to the assembly part (32) in a rolling manner, or a rotating manner, or a sliding manner through the first hinge auxiliary part (16); one end of the inner connecting arm (12) is hinged to the hinge cup (1), the other end is provided with a second hinge auxiliary part (17), and is hinged to the assembly part (32) in a rolling manner, or a rotating manner, or a sliding manner through the second hinge auxiliary part (17).

8. The stable assembly structure of the embedded hinge according to claim 7, wherein: An elastic part (3), a damper (10) and a linear groove (8) are further arranged on the assembly part (32); an elastic acting part (5) is arranged on the outer connecting arm (4). When the hinge cup (1) is hinged and opened or closed at a certain position relative to the bracket (2) and / or the assembly part (32), the outer connecting arm (4) interacts with the elastic part (3) through the elastic acting part (5) to realize the elastic hinged opening and closing between the hinge cup (1) and the bracket (2) and / or the assembly part (32). A connecting part (7) is arranged on the outer connecting arm (4), and a transmission part (6) is rotatably connected through the connecting part (7); the damper (10) is an automatic reset damper or a non-automatic reset damper, one end of which is positioned and arranged on the assembly part (32), the other end is rotatably connected to the transmission part (6) and is slidably arranged on the linear groove (8). When the hinge cup (1) is hinged and closed at a certain position relative to the bracket (2), the outer connecting arm (4) acts through the transmission part (6) and drives the end part of the damper (10) to slide guidingly on the linear groove (8), and the damper (10) generates a damping force during sliding to realize the damping hinged closing between the hinge cup (1) and the bracket (2) and / or the assembly part (32).

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