CN113107293A

CN113107293A - Firm assembly structure of formula hinge of buryying

Info

Publication number: CN113107293A
Application number: CN202110412207.XA
Authority: CN
Inventors: 伍志勇
Original assignee: Guangdong DTC Hardware Precision Manufacturing Co Ltd
Current assignee: Guangdong DTC Hardware Precision Manufacturing Co Ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-07-13

Abstract

The invention relates to a stable assembly structure of an embedded hinge, which comprises a fixed element and a hinge cup hinged and opened on a bracket through a connecting arm component, wherein an assembly cavity is arranged on the fixed element, a longitudinal hole is arranged on the assembly cavity, the bracket is assembled in the assembly cavity and provided with a positioning hole, the positioning hole corresponds to the longitudinal hole, a positioning part is also arranged between the positioning hole and the longitudinal hole, and the positioning part is positioned and acted on the longitudinal hole and the positioning hole when the bracket is assembled so as to realize the stable assembly between the bracket and the fixed element. The support and the fixing element are assembled by utilizing the limiting function of the assembling cavity and the vertical positioning function between the positioning piece and the fastening piece, so that multiple stable assembly is finally realized, the door and the window provided with the hinge with the structure can be opened and closed stably, smoothly, collision-free and noiselessly, and the hinge can be stably assembled, so that the bearing effect of the hinge can be improved, and the hinge can be widely applied to doors and windows with large volume and weight.

Description

Firm assembly structure of formula hinge of buryying

Technical Field

The invention relates to a stable assembling structure of an embedded hinge.

Background

The patent publication No. CN209509819U of the applicant discloses an assembly structure of an embedded hinge in 2019, 10.18.A hinge device comprises a furniture cabinet body, a furniture door body, a hinge device and a pre-assembly element, wherein the hinge device at least comprises a hinge cup and a fixed support, and the pre-assembly element is provided with a positioning groove part, at least two hinge cup pre-assembly parts and at least two furniture pre-assembly parts; the hinge cup is embedded in the positioning groove, the pre-assembly element is fixedly connected with the hinge cup through at least two hinge cup pre-assembly parts, the pre-assembly element is fixedly connected with the furniture door body through at least two furniture pre-assembly parts, the furniture cabinet body is provided with an assembly groove, and the fixing support is embedded in the assembly groove and fixedly arranged on the assembly groove. When the hinge is assembled, the hinge is firstly embedded in an assembling groove of the furniture cabinet body, and then is fixed with the furniture cabinet body by a fastener; because of the special usability of the embedded hinge, the whole furniture door body can only be installed with the furniture door body through the upper hinge and the lower hinge, the whole weight of the furniture door body can be completely acted on the upper hinge and the lower hinge in the opening and closing process, and the hinge is only fixed by the embedded assembling groove and the single fastener, so that the unstable assembly of the furniture door body can be caused, meanwhile, the direction of the fastening action of the fastener is basically parallel to the opening and closing direction of the furniture door body, the furniture door body can easily cause the hinge to be loosened or separated from the assembling groove when being opened and closed for a long time, the opening and closing stability of the furniture door body is influenced, and the furniture door body can also fall off. Therefore, further improvements are necessary.

Disclosure of Invention

The invention aims to provide a stable assembly structure of an embedded hinge, which has the advantages of simple and reasonable structure, reliable performance, low manufacturing cost, easy production and implementation, wide application range, stable and firm assembly, stable and smooth opening and closing, no collision, no noise, safety and reliability, and overcomes the defects in the prior art.

The firm assembly structure of formula of buryying hinge that designs according to this purpose includes the hinge cup who opens and shuts on the support through the articulated arm subassembly, its characterized in that: the fixing element is provided with an assembly cavity, and the assembly cavity is provided with a longitudinal hole; the bracket is assembled in the assembly cavity and is provided with a positioning hole, and the positioning hole corresponds to the longitudinal hole; and a positioning part is also arranged between the positioning hole and the longitudinal hole, and the positioning part is positioned and acts on the longitudinal hole and the positioning hole when the bracket is assembled so as to realize stable assembly between the bracket and the fixing element.

The longitudinal hole is provided with at least one and is arranged at the upper position and the lower position of the assembly cavity in a penetrating way.

The direction of the longitudinal hole, the positioning hole and the positioning piece is perpendicular to the direction of the hinged opening and closing of the hinged cup.

The bracket is provided with a positioning part; the fixing element and/or the assembly cavity are/is provided with a positioning matching part; the support is embedded in the assembly cavity and is positioned on the fixing element through the matching of the positioning matching part and the positioning part.

The fixing element is integrally formed by a metal material or a non-metal material, an assembly cavity is arranged in the fixing element, and an opening part is arranged on the side part of the fixing element; the longitudinal hole, the opening part and the assembling cavity are communicated with each other; the bracket is embedded in the assembly cavity through the opening part.

The bracket is provided with an assembling hole, a space is formed between the assembling hole and the positioning hole, and a fastener is arranged on the assembling hole and the positioning hole; the fastening element fastens on the mounting opening and the through-fastening element during mounting of the support.

The direction of the assembling hole and the fastener is perpendicular to the direction of the longitudinal hole, the positioning hole and the positioning piece.

The hinged cup is provided with at least two hinged cup fixing holes for fixing and assembling; and a space is formed between the at least two hinged cup fixing holes.

The support is made of metal materials and is provided with a left support and a right support, the left support and the right support are respectively provided with a positioning hole, and a fixing piece is arranged between the left support and the right support.

The fixing piece is fixedly arranged on the positioning holes of the left bracket and the right bracket so as to realize the fixed connection between the left bracket and the right bracket.

And/or the left bracket and the right bracket are respectively provided with a fixing part acting hole; the fixing piece is fixedly acted on the fixing piece acting holes of the left bracket and the right bracket so as to realize the fixed connection between the left bracket and the right bracket.

An assembly part is also arranged between the left bracket and the right bracket; the connecting arm assembly comprises an outer connecting arm and an inner connecting arm; one end of the outer connecting arm is hinged with the hinged cup, and the other end of the outer connecting arm is provided with a first hinge auxiliary part and is hinged with the assembly part in a rolling type, a rotating type or a sliding type mode through the first hinge auxiliary part; one end of the inner connecting arm is hinged with the hinged cup, the other end of the inner connecting arm is provided with a second hinge auxiliary part, and the inner connecting arm is hinged with the assembly part in a rolling mode, a rotating mode or a sliding mode through the second hinge auxiliary part.

The assembly part is also provided with an elastic part, a damper and a linear groove; the outer connecting arm is provided with an elastic action part.

The outer connecting arm interacts with the elastic element through the elastic action part when the hinged cup is hinged to the bracket and/or the assembly part to open and close at a certain position, so that the hinged cup is elastically hinged to the bracket and/or the assembly part to open and close.

The outer connecting arm is provided with a connecting part and is rotationally connected with a transmission part through the connecting part; the damper is an automatic reset damper or a non-automatic reset damper, one end of the damper is positioned on the assembly part, and the other end of the damper is rotationally connected with the transmission part and is arranged on the linear groove in a sliding mode.

The outer connecting arm acts through a transmission piece when the hinged cup is hinged and closed at a certain position relative to the support and drives the end part of the damper to guide and slide on the linear groove, and the damper generates damping force when sliding so as to realize damping hinged and closed between the hinged cup and the support and/or the assembly part.

Through the improvement of the structure, the bracket is assembled in the assembly cavity of the fixed element, so that a first heavy positioning assembly effect is formed between the bracket and the fixed element, then the positioning piece with longitudinal action is used for positioning and acting on the longitudinal hole and the positioning hole, so that a second heavy positioning assembly effect is formed between the bracket and the fixed element, and finally the fastening piece with transverse action is used for fastening and acting on the assembly hole of the bracket and the fixed element, so that a third heavy positioning assembly effect is formed between the bracket and the fixed element; the support and the fixed element utilize the limiting function of an assembly cavity and the vertical positioning function between the positioning piece and the fastening piece during assembly, finally, multiple stable assembly is realized, the door and the window provided with the hinge with the structure can be stably, smoothly, collision-free and noiselessly opened and closed, and the hinge can realize stable assembly, so that the bearing effect of the hinge can be improved, the hinge can be widely applied to doors and windows with large sizes and weights, and the use range and the user experience of the hinge are improved.

Drawings

Fig. 1 is an exploded structural schematic view of a hinge, a fixing element, a furniture door body and a furniture cabinet body according to an embodiment of the invention.

Fig. 2 is a schematic view of an assembly structure of a hinge, a fixing element, a furniture door body and a furniture cabinet body according to an embodiment of the invention.

Fig. 3 is an assembly sectional structural schematic view of a hinge, a fixing element, a furniture door body and a furniture cabinet body according to an embodiment of the invention.

Fig. 4 is another assembly sectional structural schematic view of the hinge, the fixing element, the furniture door body and the furniture cabinet according to the embodiment of the invention.

Fig. 5 is an exploded view of a hinge and a fixing element according to an embodiment of the invention.

Fig. 6 is an exploded view of a hinge according to an embodiment of the present invention.

Fig. 7 is an exploded view of the hinge according to an embodiment of the present invention (omitting the hinge cup and the bracket).

Fig. 8 is a structural diagram illustrating an opened state of the hinge according to an embodiment of the present invention.

Fig. 9 is a structural diagram illustrating a closed state of a hinge according to an embodiment of the invention.

Detailed Description

The invention is further described with reference to the following figures and examples.

Referring to fig. 1 to 9, the stable assembly structure of the buried hinge includes a fixing member 20, and a hinge cup 1 hinged to open and close a bracket 2 by a link arm assembly. The hinge of the present invention can be applied to opening and closing doors and windows, and the present embodiment will be described with reference to the installation between the furniture door body X and the furniture cabinet body Y.

Specifically, a groove is arranged on the furniture door body X, and the hinged cup 1 is embedded in the groove and fixedly connected with the furniture door body X; the furniture cabinet body Y is provided with an assembling part; the fixing element 20 is fixedly arranged on the mounting portion.

The fixing element 20 is provided with an assembly cavity 21, and the assembly cavity 21 is provided with a longitudinal hole 22; the bracket 2 is assembled in the assembly cavity 21 and provided with a positioning hole 23, and the positioning hole 23 corresponds to the longitudinal hole 22; a positioning element 24 is further arranged between the positioning hole 23 and the longitudinal hole 22, and the positioning element 24 is positioned and acts on the longitudinal hole 22 and the positioning hole 23 when the bracket 2 is assembled, so that the bracket 2 and the fixing element 20 are stably assembled.

Further, at least one longitudinal hole 22 is provided and is penetratingly provided at an upper and lower position of the assembly chamber 21. The through-arranged longitudinal bore 22 may improve the assembly versatility between the holder 2 and the fixing element 20, i.e. the positioning element 24 may act on the longitudinal bore 22, the positioning bore 23 from top to bottom, or the positioning element 24 may act on the longitudinal bore 22, the positioning bore 23 from bottom to top.

In order to make the assembly of the bracket 2 and the fixing element 20 more reasonable, the bracket 2 is provided with a positioning part 25; the fixing element 20 and/or the assembly cavity 21 are/is provided with a positioning matching part 26; the bracket 2 is embedded in the assembly cavity 21 and is positioned on the fixing element 20 through the matching of the positioning matching part 26 and the positioning part 25.

The fixing element 20 is integrally formed by a metal material or a non-metal material, and in order to improve the structural strength, the fixing element 20 of the embodiment is integrally formed by a metal material, and is internally provided with an assembly cavity 21 and the side part is provided with an opening part 27; the longitudinal hole 22, the opening part 27 and the assembly cavity 21 are communicated with each other; the holder 2 is fitted into the fitting cavity 21 through the opening 27.

The bracket 2 is provided with an assembling hole 28, a space is formed between the assembling hole 28 and the positioning hole 23, and a fastening piece 29 is arranged on the assembling hole 28; when the bracket 2 is assembled, the fastening piece 29 is fastened on the assembling hole 28, penetrates through the fixing element 20 and is finally fastened with the furniture cabinet body Y, namely, the bracket 2, the fixing element 20 and the furniture cabinet body Y can be assembled by one fastening piece 29, and the bracket 2, the fixing element 20 and the furniture cabinet body Y are simple in structure, easy to assemble and low in production cost.

The direction in which the fitting hole 28 and the fastening member 29 are disposed is perpendicular to the direction in which the longitudinal hole 22, the positioning hole 23, and the positioning member 24 are disposed. Meanwhile, the directions of the longitudinal hole 22, the positioning hole 23 and the positioning piece 24 are perpendicular to the direction of the hinged opening and closing of the hinge cup 1.

Namely, the bracket 2 is assembled in the assembly cavity 21 of the fixing element 20, so that a first positioning assembly effect is formed between the bracket 2 and the fixing element 20, then a second positioning assembly effect is formed between the bracket 2 and the fixing element 20 by positioning the positioning piece 24 acting in the longitudinal direction on the longitudinal hole 22 and the positioning hole 23, and finally a third positioning assembly effect is formed between the bracket 2 and the fixing element 20 by fastening the positioning piece 28 acting in the transverse direction on the bracket 2 and the fixing element 20 by the fastening piece 29 acting in the transverse direction.

Furthermore, the bracket 2 and the fixing element 20 utilize the limiting function of the assembling cavity 21 and the vertical positioning function between the positioning part 24 and the fastening part 29 during assembling, so that multiple stable assembling can be finally realized, not only the furniture door body provided with the hinge of the structure can be stably, smoothly, without collision and noiselessly opened and closed on the furniture cabinet body Y, and further the problems that the hinge in the prior art is poor in assembling stability, the opening and closing effect of the furniture door body X is influenced, and the furniture door body X is easy to fall off from the furniture cabinet body Y are effectively avoided, and the hinge can realize stable assembling, so that the bearing effect of the hinge can be improved, the hinge can be widely applied to the furniture door body X with larger size and weight, and the application range of the hinge and the user experience are improved.

In order to ensure that the assembly between the hinged cup 1 and the furniture door body X is more stable, at least two hinged cup fixing holes 30 for fixed assembly are arranged on the hinged cup 1; the at least two hinge cup fixing holes 30 form a space therebetween. The at least two hinge cup fixing holes 30 forming the space can bear the force of the furniture door body X acting on the hinge cup 1 very flatly, and therefore stable assembly between the hinge cup 1 and the furniture door body X can be guaranteed.

The support 2 is made of metal material and is provided with a left support and a right support, the left support 2 and the right support 2 are respectively provided with a positioning hole 23, and a fixing piece 31 is arranged between the left support 2 and the right support 2.

The fixing member 31 is fixedly applied to the positioning holes 23 of the left and right brackets 2 to realize the fixed connection between the left and right brackets 2. Namely, the fixing piece 31 and the positioning piece 24 both act on the common positioning hole 23, so that the installation between the left bracket 2, the right bracket 2 and the fixing element 20 is realized on the basis of not changing the original structure of the hinge, the structure is simple and reasonable, and the production cost is low.

In addition, fixing part acting holes can be respectively formed in the right two brackets 2; the fixing member 31 is fixedly applied to the fixing member application holes of the left and right brackets 2 to realize the fixed connection between the left and right brackets 2.

An assembly part 32 is also arranged between the left bracket 2 and the right bracket 2; the connecting arm assembly comprises an outer connecting arm 4 and an inner connecting arm 12; one end of the external connecting arm 4 is hinged with the hinge cup 1, the other end is provided with a first hinge auxiliary piece 16, and the external connecting arm is hinged with the assembly part 32 in a rolling type, a rotating type or a sliding type through the first hinge auxiliary piece 16; the inner connecting arm 12 is hinged to the hinge cup 1 at one end and provided with a second hinge aid 17 at the other end, and is rotatably or slidably hinged to the fitting 32 via the second hinge aid 17.

When the hinge cup 1 is hinged and opened relative to the bracket 2, the outer connecting arm 4, the inner connecting arm 12 and the assembly part 32 are hinged and matched with each other through the first hinge auxiliary part 16 and the second hinge auxiliary part 17 respectively to realize mutual hinge assistance, so that the first hinge auxiliary part and the second hinge auxiliary part can partially bear acting force acting on the outer connecting arm 4 and the inner connecting arm 12 during working, the problems of bending deformation and fracture of the outer connecting arm 4 and the inner connecting arm 12 due to large stress are effectively solved, the service life of a product is prolonged, and meanwhile, the first hinge auxiliary part and the second hinge auxiliary part can bear acting force, so that the integral bearing capacity of the hinge can be improved, and the hinge can be further widely applied to furniture door bodies X with large volume and weight; experiments show that the furniture door body X with the weight of 30KG can be installed and used only by installing two hinges with the structure.

The first and second

auxiliary hinge members

16 and 17 of the present embodiment are balls, which are located between the assembly member 32 and the outer and inner connecting

arms

4 and 12 after assembly, so as to reduce the assembly gap between the above components, improve the assembly compactness between the components, reduce the overall assembly volume of the hinge, and improve the assembly quality and structural stability.

The assembly member 32 is further provided with an elastic member 3, a damper 10 and a linear groove 8; the external connecting arm 4 is provided with an elastic action part 5.

The outer connecting arm 4 interacts with the elastic member 3 through the elastic acting part 5 when the hinge cup 1 is hinged to the bracket 2 and/or the fitting member 32 to open and close at a certain position, so as to realize the elastic hinged opening and closing between the hinge cup 1 and the bracket 2 and/or the fitting member 32.

The outer connecting arm 4 is provided with a connecting part 7 and is rotatably connected with a transmission piece 6 through the connecting part 7; the damper 10 is a self-return damper or a non-self-return damper, and one end of the damper is positioned on the assembly member 32, and the other end of the damper is rotatably connected with the transmission member 6 and slidably disposed on the linear groove 8.

The outer link arm 4 acts through the transmission 6 and drives the end of the damper 10 to slide guided on the linear groove 8 when the hinge cup 1 is hinged closed in a certain position relative to the bracket 2, the damper 10 generating a damping force during sliding to achieve a damped hinged closure between the hinge cup 1 and the bracket 2 and/or the fitting 32.

When the hinge is in the assembly use, the outer connecting arm 4 is respectively through elastic action portion 5, driving medium 6 and elastic component 3, attenuator 10 interact, the elastic action that elastic component 3 produced promptly, the damping force that attenuator 10 produced can be applyed on same outer connecting arm 4, consequently the production of elastic action and damping force is more direct, thereby make hinge cup 1 can be steady, smooth and easy, no collision, noiselessness ground articulated switching and damping closure on support 2, improve user experience.

Moreover, due to the direct action of force, the hinge can further bear larger bearing capacity, and can generate better damping buffer force when being closed, so that the hinge can be assembled with a furniture door body X with larger size and weight for use.

When the hinge cup is hinged and opened at a certain position relative to the support 2 during working, the outer connecting arm 4 can interact with the elastic piece 3 through the elastic action part 5, so that the elastic hinged opening and closing of the hinge cup 1 relative to the support 2 can be realized, and a user can conveniently and quickly open and/or close the hinge cup 1. When the hinge cup 1 is hinged and closed a certain position relative to the support 2, the outer connecting arm 4 can be interacted with the damper 10 through the transmission part 6, so that the damping hinge closure of the hinge cup 1 relative to the support 2 can be realized, the mutual collision of the hinge cup 1 and the support 2 when the hinge cup is closed can be avoided, the service life of the hinge can be prolonged, the use experience of a user can be improved, and the effects of stability, smoothness, no collision and no noise can be realized by the hinge when the hinge is opened and closed.

The linear groove 8 can lead the transmission piece 6 and the damper 10 to perform guiding type linear sliding at a designated position, so that the connection compactness among all components is further improved, the assembly stability among the components can be improved, and the damping force generated by the damper 10 is more stable and reasonable.

In addition, because the external connecting arm 4 is directly interacted with the elastic part 3 and the damper 10, the whole structure of the hinge can be simplified, the connection compactness among all components is improved, the assembly size is reduced, the production cost is reduced, and the assembly process is simplified.

The foregoing is a preferred embodiment of the present invention, and the basic principles, principal features and advantages of the invention are shown and described. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims

1. A firm assembly structure of formula hinge of buryying, includes hinge cup (1) through the articulated switching of linking arm subassembly on support (2), its characterized in that: the fixing device also comprises a fixing element (20), wherein an assembly cavity (21) is arranged on the fixing element (20), and a longitudinal hole (22) is arranged on the assembly cavity (21); the bracket (2) is assembled in the assembly cavity (21) and is provided with a positioning hole (23), and the positioning hole (23) corresponds to the longitudinal hole (22); a positioning piece (24) is further arranged between the positioning hole (23) and the longitudinal hole (22), and the positioning piece (24) is positioned on the longitudinal hole (22) and the positioning hole (23) when the support (2) is assembled, so that stable assembly between the support (2) and the fixing element (20) is achieved.

2. The secure mounting structure of the buried hinge of claim 1, wherein: at least one longitudinal hole (22) is arranged and is arranged at the upper position and the lower position of the assembly cavity (21) in a penetrating way.

3. The secure mounting structure of the buried hinge of claim 1, wherein: the direction of the longitudinal hole (22), the positioning hole (23) and the positioning piece (24) is vertical to the direction of the hinged opening and closing of the hinged cup (1).

4. The secure mounting structure of the buried hinge of claim 1, wherein: a positioning part (25) is arranged on the bracket (2); the fixing element (20) and/or the assembly cavity (21) is/are provided with a positioning matching part (26); the bracket (2) is embedded in the assembly cavity (21) and is positioned on the fixing element (20) through the matching of the positioning matching part (26) and the positioning part (25).

5. The secure mounting structure of the buried hinge of claim 1, wherein: the fixing element (20) is integrally formed by a metal material or a non-metal material, an assembly cavity (21) is arranged in the fixing element, and an opening part (27) is arranged on the side part of the fixing element; the longitudinal hole (22), the opening part (27) and the assembly cavity (21) are communicated with each other; the bracket (2) is embedded in the assembly cavity (21) through the opening part (27).

6. The secure mounting structure of the buried hinge according to any one of claims 1 to 5, wherein: the bracket (2) is provided with an assembling hole (28), a space is formed between the assembling hole (28) and the positioning hole (23), and a fastener (29) is arranged on the assembling hole; the fastening element (29) fastens on the mounting opening (28) and the fastening element (20) during mounting of the support (2).

7. The secure mounting structure of the buried hinge of claim 6, wherein: the directions of the assembly holes (28) and the fasteners (29) are perpendicular to the directions of the longitudinal holes (22), the positioning holes (23) and the positioning pieces (24).

8. The secure mounting structure of the buried hinge of claim 1, wherein: the hinged cup (1) is provided with at least two hinged cup fixing holes (30) for fixed assembly; a space is formed between the at least two hinged cup fixing holes (30);

the support (2) is made of metal materials and is provided with a left support and a right support, the left support and the right support (2) are respectively provided with a positioning hole (23), and a fixing piece (31) is arranged between the left support and the right support (2);

the fixing piece (31) is fixedly acted on the positioning holes (23) of the left bracket (2) and the right bracket (2) to realize the fixed connection between the left bracket and the right bracket (2);

and/or the left bracket (2) and the right bracket (2) are respectively provided with a fixing part acting hole; the fixing pieces (31) are fixedly acted on the fixing piece acting holes of the left bracket (2) and the right bracket (2) so as to realize the fixed connection between the left bracket and the right bracket (2).

9. The secure mounting structure of the buried hinge of claim 8, wherein: an assembly part (32) is also arranged between the left bracket (2) and the right bracket (2); the connecting arm assembly comprises an outer connecting arm (4) and an inner connecting arm (12); one end of the outer connecting arm (4) is hinged with the hinged cup (1), the other end of the outer connecting arm is provided with a first hinge auxiliary part (16), and the outer connecting arm is hinged with the assembly part (32) in a rolling mode, a rotating mode or a sliding mode through the first hinge auxiliary part (16); one end of the inner connecting arm (12) is hinged with the hinge cup (1), the other end is provided with a second hinge auxiliary part (17), and the inner connecting arm is hinged with the assembly part (32) in a rolling mode, a rotating mode or a sliding mode through the second hinge auxiliary part (17).

10. The secure mounting structure of the buried hinge of claim 9, wherein: the assembly part (32) is also provided with an elastic part (3), a damper (10) and a linear groove (8); the outer connecting arm (4) is provided with an elastic action part (5);

the outer connecting arm (4) is interacted with the elastic element (3) through the elastic action part (5) when the hinged cup (1) is hinged to the bracket (2) and/or the assembly part (32) to be opened and closed at a certain position, so that the hinged cup (1) is elastically hinged to the bracket (2) and/or the assembly part (32) to be opened and closed;

the outer connecting arm (4) is provided with a connecting part (7) and is rotatably connected with a transmission part (6) through the connecting part (7); the damper (10) is an automatic reset damper or a non-automatic reset damper, one end of the damper is positioned on the assembly part (32), and the other end of the damper is rotationally connected with the transmission part (6) and is arranged on the linear groove (8) in a sliding manner;

the outer connecting arm (4) acts through the transmission piece (6) when the hinged cup (1) is hinged and closed at a certain position relative to the support (2) and drives the end of the damper (10) to guide and slide on the linear groove (8), and the damper (10) generates damping force when sliding so as to realize damping hinged closing between the hinged cup (1) and the support (2) and/or the assembly part (32).