WO2024146122A1

WO2024146122A1 - American damping hinge capable of being quickly assembled and disassembled and cup concealed hinge

Info

Publication number: WO2024146122A1
Application number: PCT/CN2023/109626
Authority: WO
Inventors: 吴腾庆; 吴积庆
Original assignee: 吴腾庆
Priority date: 2023-01-03
Filing date: 2023-07-27
Publication date: 2024-07-11

Abstract

Embodiments of the present application provide an American damping hinge capable of being quickly assembled and disassembled. The American damping hinge capable of being quickly assembled and disassembled comprises: a hinge cup structure; a connecting structure, the connecting structure being hingedly connected to the hinge cup structure, the connecting structure comprising a bending part, the bending part comprising a hinge arm mounting area, the hinge arm mounting area being provided with a sliding groove having a downward opening, the sliding groove being provided with a slot, and the slot being located at the end of the sliding groove away from the hinge cup structure; and a hinge arm structure comprising a pressing part, the pressing part comprising a fastener. According to the technical solution of the embodiments of the present application, the American damping hinge can be quickly assembled and disassembled, so that the whole hinge does not need to be repeatedly assembled and disassembled when doors and windows are assembled and disassembled, thereby shortening the time for assembling and disassembling the American damping hinge, and improving the user experience.

Description

American damping hinges and cup-shaped concealed hinges that can be quickly disassembled

Technical Field

The present application relates to the technical field of hinges, and in particular to an American damping hinge and a cup-shaped concealed hinge that can be quickly disassembled and assembled.

Background technique

A hinge is a mechanical device that connects two solid objects and allows them to rotate relative to each other. Hinges are installed in furniture such as doors and windows. However, existing hinges are fixedly connected to doors and windows as a whole. When separating and disassembling doors and windows, the hinge may need to be repeatedly installed and removed as a whole, which is time-consuming and very inconvenient.

It should be noted that the above content is not necessarily prior art, nor is it intended to limit the scope of patent protection of this application.

Summary of the invention

The embodiments of the present application provide an American damping hinge and a cup-shaped concealed hinge that can be quickly disassembled and assembled to solve or alleviate one or more of the technical problems raised above.

As one aspect of an embodiment of the present application, the embodiment of the present application provides an American damping hinge that can be quickly disassembled and assembled, including: a hinge cup structure; a connecting structure, wherein the connecting structure and the hinge cup structure are hinged together; the connecting structure includes a bending portion; the bending portion includes a hinge arm mounting area, and the hinge arm mounting area has a downward-opening slide groove, and the slide groove is provided with a card slot, and the card slot is located at the end of the slide groove away from the hinge cup structure; the hinge arm structure includes a pressing portion, and the pressing portion includes a snap-fit piece; wherein, in the assembled state, the hinge arm structure is snapped into the slide groove, the card slot slides to the snap-fit piece, and is snap-fitted and fixed with the snap-fit piece to fix the connecting structure and the hinge arm structure, and in the disassembled state, the card slot and the snap-fit piece are disengaged to separate the connecting structure and the hinge arm structure.

As one aspect of an embodiment of the present application, the embodiment of the present application provides a cup-shaped concealed hinge that can be quickly disassembled and assembled, including: a hinge cup structure; a connecting structure, wherein the connecting structure and the hinge cup structure are hinged together; the connecting structure includes a bending portion; the bending portion includes a hinge arm mounting area, the hinge arm mounting area has a downward-opening sliding groove, and the hinge arm mounting area also includes a third axle pin, the third axle pin spans between the two sides of the sliding groove, and the third axle pin is located at the end of the hinge arm mounting area away from the hinge cup structure; the hinge arm structure includes a pressing portion, and the pressing portion includes a snap-fit piece; wherein, in the assembled state, the hinge arm structure is snapped into the sliding groove, the third axle pin slides to the snap-fit piece, and is snap-fitted and fixed with the snap-fit piece to fix the connecting structure and the hinge arm structure, and in the disassembled state, the third axle pin and the snap-fit piece are disengaged to separate the connecting structure and the hinge arm structure.

The above technical solution adopted in the embodiment of the present application may have the following advantages:

The installer can pre-install the hinge cup structure of the hinged connection structure on the door or door frame, and pre-install the hinge arm structure on the door frame or door. Then, the installer can cover the bending part on the hinge arm structure so that the hinge arm structure is accommodated in the slide groove, and then press the position of the card slot so that the card slot and the snap-on part engage, thereby realizing the rapid installation of the American damping hinge. During disassembly, the installer can press the pressing part so that the snap-on part and the card slot are disengaged, thereby realizing the rapid disassembly of the American damping hinge, and then the door can be quickly removed from the corresponding door frame. It can be seen that the technical solution of the embodiment of the present application enables the American damping hinge installed on furniture such as doors and windows to be quickly disassembled and assembled, so that when disassembling and assembling doors and windows, there is no need to repeatedly install and disassemble the hinge as a whole, which reduces the time required for installing and disassembling the American damping hinge and improves the user experience.

BRIEF DESCRIPTION OF THE DRAWINGS

In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

FIG. 1 is a schematic structural diagram of an American damping hinge that can be quickly disassembled and assembled provided in Example 1 of the present application.

FIG. 2 is an exploded view of the quickly disassembled American damping hinge provided in Example 1 of the present application.

FIG. 3 is another exploded view of the quickly disassembled American damping hinge provided in the first embodiment of the present application.

4-5 are exploded views of the hinge arm structure.

FIG. 6 is another exploded view of the quickly disassembled American damping hinge provided in the first embodiment of the present application.

FIG. 7 is another exploded view of the quickly disassembled American damping hinge provided in the first embodiment of the present application.

FIG. 8 is another exploded view of the quickly disassembled American damping hinge provided in the first embodiment of the present application.

FIG. 9 is another exploded view of the quickly disassembled American damping hinge provided in the first embodiment of the present application.

FIG. 10 is an exploded view of the connection structure.

FIG. 11 is a perspective view of a rotating portion in the connection structure.

12 and 13 are perspective views of a bent portion in the connection structure.

14A to 14D are schematic diagrams of the installation process.

15A to 15D are schematic diagrams of the splitting process.

FIG. 16 is a schematic structural diagram of the quickly disassembled cup-shaped concealed hinge provided in the second embodiment of the present application in an assembled state.

17 to 19 are multiple exploded views of the quickly disassembled cup-shaped concealed hinge provided in the second embodiment of the present application.

20-21 are schematic structural diagrams of the bending portion.

Figure 22 is a partial exploded view of the quickly disassembled cup-shaped concealed hinge provided in Example 2 of the present application.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application more clear, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

The following provides an explanation of the terms used in this application.

American damping hinges (Cup hinges), also known as American damping concealed hinges, meet and exceed the relevant definitions, requirements and inspection standards of the light industry standards of the People's Republic of China QB/T1242-1991 and QBT2189-2013. At the same time, they meet and exceed the relevant definitions, requirements and inspection standards in the EU standard 15570-2008.

To facilitate those skilled in the art to understand the technical solutions provided in the embodiments of the present application, the following related technologies are described:

American damping hinges, as a commonly used furniture hardware, are generally composed of hinge cups, connecting plates, hinge arms, bases, etc. American damping hinges are installed between light cabinet doors and door frames, allowing the door to rotate relative to the door frame. However, the existing hinges require very complicated installation and removal of the hinges, which is time-consuming and very inconvenient.

To this end, the embodiment of the present application provides a new design structure of an American damping hinge. In the American damping hinge in the embodiment of the present application, the connection structure hinged on the hinge cup structure can be quickly installed on the hinge arm structure. See below for details.

Hereinafter, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. It should be noted that these exemplary embodiments can be implemented in many different forms and should not be construed as being limited to the embodiments described herein.

Embodiment 1

As shown in Figures 1-15, the American damping hinge that can be quickly disassembled and assembled in the embodiment of the present application may include: a hinge cup structure 1, a connection structure 2, and a hinge arm structure 3. The hinge cup structure 1 and the connection structure 2 are hinged together, and the connection structure 2 can be quickly installed on the hinge arm structure 3 and quickly separated from the hinge arm structure 3, thereby achieving rapid disassembly and assembly.

The structures and matching relationships of the hinge cup structure 1, the connection structure 2, and the hinge arm structure 3 are introduced below.

The hinge cup structure 1 can be fixedly installed on a door or a door frame.

The connection structure 2 is hinged on the hinge cup structure 1. The connection structure 2 and the hinge cup structure 1 can be provided with mutually cooperating hinge components as required. For example, the hinge can be realized by a first shaft pin 171.

The connection structure 2 may include a rotating portion 21 and a bending portion 22. The bending portion 22 includes a hinge arm mounting area 222, the hinge arm mounting area 222 has a downwardly opening slide 2221, the slide 2221 is provided with a clamping groove 2222, and the clamping groove 2222 is located in the slide 2221 away from the end of the hinge cup structure 1.

The hinge arm structure 3 can be fixed on a door frame or a door, and comprises a pressing portion 31 , wherein the pressing portion 31 comprises a snap-fitting member 311 .

In the assembled state, the hinge arm structure 3 is inserted into the slide slot 2221, and the slot 2222 slides to the snap member 311 and is snapped and fixed with the snap member 311, so that the connection structure 2 and the hinge arm structure 3 are fixedly connected. In the disassembled state, the slot 2222 and the snap member 311 are disengaged, so that the connection structure 2 and the hinge arm structure 3 are separated. As shown in Figures 14A to 14D, the user can slide the bending portion 22 onto the hinge arm structure 3, so that the hinge arm structure 3 is accommodated in the slide slot 2221, and then press the position of the slot 2222, so that the slot 2222 and the snap member 311 are snapped, thereby realizing the rapid installation of the American damping hinge. As shown in FIGS. 15A to 15D , the user can press the pressing portion 31 to disengage the latch 311 from the latch slot 2222 , thereby quickly disassembling the American damping hinge and quickly removing the door from the corresponding door frame.

In the above embodiment, it is introduced that the engagement or disengagement between the latch 311 in the pressing portion 31 and the latch slot 2222 is achieved, thereby achieving the installation and disassembly between the connecting structure 2 and the hinge arm structure 3.

In an optional embodiment, the pressing portion 31 further includes: a second shaft pin 312 and a third torsion spring 313 .

The third torsion spring 313 can be a double torsion spring or more than two single torsion springs. The second axle pin 312, the second axle pin 312 passes through the clip 311 and the third torsion spring 313. Wherein, under the action of external force, the clip 311 rotates open with the second axle pin 312 as the axis, so that the slot 2222 is aligned with the clip 311, and when the external force disappears, the clip 311 rotates to the initial position with the second axle pin 312 as the axis under the torsion of the third torsion spring 313, so that the clip 311 is engaged and fixed with the slot 2222. In this optional embodiment, the structure is simple, making it more convenient to disassemble and install.

As shown in FIGS. 3 and 4 , in some embodiments, the pressing portion 31 is provided with a first surface and a second surface facing each other. The first surface is a pressing inclined surface for the installer to press. The second surface is provided with the buckle 311. The buckle may include a hook 3111 and a circular hole 3112. A buckle with an arc-shaped outer edge is provided above the hook 3111, and the circular holes 3112 are respectively located on both sides of the pressing portion. The circular hole 3112 and the main body of the third torsion spring 313 are coaxial. The second shaft pin 312 penetrates the second pin hole 345, the circular hole 3112, and the third torsion spring 313 to realize the hinge connection of the pressing portion 31. When the card slot 2222 is against the buckle and pressed down, since the buckle is arc-shaped, the buckle is subjected to the extrusion force, which causes the pressing portion 31 to rotate clockwise around the second shaft pin 312, thereby causing the card slot 2222 to reach a predetermined position. At this time, the slot 2222 leaves the outer edge of the fastener, and under the action of the torsion of the third torsion spring 313, the pressing portion 31 rotates counterclockwise around the second axle pin 312 to return to the initial position or a position close to the initial position, and the fastener of the catch hook 3111 just fits into the slot 2222. Of course, the installer can also press the pressing portion 31 to make the pressing portion 31 rotate clockwise around the second axle pin 312, so that the slot 2222 reaches the predetermined position. After the installer releases the pressing portion 31, under the action of the torsion of the third torsion spring 313, the pressing portion 31 rotates counterclockwise around the second axle pin 312 to return to the initial position or a position close to the initial position, and the fastener of the catch hook 3111 can just fit into the slot 2222. The same is true for disassembly.

It should be noted that the third torsion spring 313 may be a double torsion spring, the extension legs at both ends of the double torsion spring abut against the bottom of the first surface of the pressing portion 31, and the extension portion in the middle of the double torsion spring abuts against the end of the first fixing plate 34. Of course, the third torsion spring 313 may also be a single torsion spring, or other components that generate torsion.

During the installation process, the hinge arm structure 3 is inserted into the slide groove 2221. How to effectively engage them together to fix the relative position between the hinge arm structure 3 and the slide groove 2221 is specifically described in the optional embodiments below.

In an optional embodiment, the hinge arm installation area 222 and the hinge arm structure 3 may be provided with corresponding structural settings. As shown in FIG12 and FIG13 , the hinge arm installation area 222 is further provided with a first protrusion 2223 and a first concave bayonet 2224, wherein: the first protrusion 2223 is respectively located on the inner walls of both sides of the slide groove 2221; the first concave bayonet 2224 is respectively located on the inner walls of the slide groove 2221; Correspondingly, as shown in FIG4 , the hinge arm structure 3 is provided with a second protrusion 32 and a second concave bayonet 33: the second protrusion 32 is respectively provided on the outer walls of the two sides of the hinge arm structure 3; the second concave bayonet 33 is respectively located on the two sides of the hinge arm structure 3, and the opening direction is toward the hinge cup structure 1; wherein, the first protrusion 2223 and the second concave bayonet 33 are engaged and fixedly connected, and the second protrusion 32 and the first concave bayonet 2224 are engaged and fixedly connected.

The openings of the second concave bayonet 33 and the first concave bayonet 2224 are oriented vertically. During the installation process, the user can slightly tilt the hinge arm installation area 222 and slide it from left to right onto the hinge arm structure 3 until the first protrusion 2223 and the second concave bayonet 33 are locked. Then, the slightly tilted end of the hinge arm installation area 222 is pressed downward until the second protrusion 32 and the first concave bayonet 2224 are locked. In addition, the fastener 311 is locked and fixed with the slot 2222, so that the hinge arm installation area 222 can be quickly fixed on the hinge arm structure 3.

In some embodiments, other positioning structures may be provided for the hinge arm installation area 222 and the hinge arm structure 3, for example, limiting grooves are provided on the inner walls on both sides of the hinge arm installation area 222, and limiting blocks are provided on both outer sides of the hinge arm structure 3. Of course, other matching forms of positioning structures may also be used, which will not be described in detail here.

During the installation process, when the door is installed on the door frame, the installation position of the hinge arm structure 3 may deviate from the actual position. At this time, it is often necessary to remove the hinge arm structure 3 from the door or door frame, resulting in a decrease in installation efficiency.

In an optional embodiment, the hinge arm mounting area 222 is provided with a plurality of holes that interpenetrate each other, and the plurality of holes include: a first passage hole 2225, a second passage hole 2226, and a third passage hole 2227. Correspondingly, the hinge arm structure 3 further includes: a first fixing plate 34, a second fixing plate 35, and a base 36. The first fixing plate 34 is fixedly connected to the hinge arm mounting area 222; the first fixing plate 34 is provided with a first through hole 341, a second through hole 342, and a third through hole 343. The second fixing plate 35 is fixed below the first fixing plate 34; the second fixing plate 35 is provided with a fourth through hole 351, a fifth through hole 352, and a sixth through hole 353. The base 36 is fixed below the second fixing plate 35; the base is provided with a seventh through hole 361, an eighth through hole 362, and a ninth through hole 363.

The first passage hole 2225, the first through hole 341, the fourth through hole 351, and the seventh through hole 361 are in corresponding positions to allow the self-tapping screw 39 to pass through. The second passage hole 2226, the second through hole 342, and the fifth through hole 352 are in corresponding positions; the second through hole 342 is a waist-shaped hole, and the second through hole 342 is used to slidably insert the nut of the first eccentric nail 37, and the fifth through hole 352 is used to insert the screw of the first eccentric nail 37. The third passage hole 2227, the third through hole 343, the sixth through hole 353, and the ninth through hole 363 are in corresponding positions; the sixth through hole 353 is a waist-shaped hole, and the sixth through hole 353 is used to slidably insert the nut of the second eccentric nail 38, and the ninth through hole 363 is used to insert the screw of the second eccentric nail 38.

By rotating the first eccentric nail 37, the first fixing plate 34 and the second fixing plate 35 can be moved relative to each other in a first direction. By rotating the second eccentric nail 38, the second fixing plate 35 and the base 36 can be moved relative to each other in a second direction. The first direction is perpendicular to the second direction. The second passage hole 2226 and the third passage hole 2227 are used for a screwdriver to pass through and act on the eccentric nail. It can be seen that by operating the first eccentric nail 37 and the second eccentric nail 38, the hinge arm structure 3 can be easily fine-tuned.

In an exemplary application, the base 36 is fixed on a door frame. A clamping portion 364 is provided at both ends of the base 36. Both ends of the second fixing plate 35 are clamped into the clamping portion 364, so that the second fixing plate 35 can be slidably located on the base 36. The second fixing plate 35 includes a bottom plate and side plates located on both sides of the bottom plate, and a U-shaped bayonet 354 is formed at the junction of the side plate and the bottom plate, and at least two convex peaks 355 are provided above the side plate. The first fixing plate 34 is provided with an upper plate and two side surfaces, and the upper plate and the two side surfaces form a U-shaped cavity opening downward; wherein, one end of the two side surfaces is provided with the second concave bayonet 33, and the other end is provided with a second pin hole 345 hinged to the pressing portion; the outer wall of the two side surfaces is provided with the second protrusion 32, and the inner wall is provided with a third protrusion 344. The second fixing plate 35 is inserted into the U-shaped cavity of the first fixing plate 34, and the third protrusion 344 can be slidably inserted into the U-shaped bayonet 354, and the protrusion 355 abuts against the upper plate of the first fixing plate 34 to be restricted to be tightly inserted. The first eccentric nail 37 is placed in the second through hole 342 of the first fixing plate 34, and the column body of the first eccentric nail 37 is connected by reverse riveting through the fifth through hole 352 of the second fixing plate 35. The second eccentric nail 38 is placed in the sixth through hole 353 (waist-shaped hole) in the second fixing plate 35, and the column body of the second eccentric nail 38 is connected by reverse riveting through the ninth through hole 363 of the base 36. The first fixing plate 34 and the second fixing plate 35 in the hinge arm structure 3 are introduced above. The exemplary structure and matching relationship of the base 36. It should be noted that the above structure can be replaced as needed.

In some embodiments, a self-tapping screw fixing seat 40 is disposed in the first passage hole 2225 , and a self-tapping screw 39 is inserted into the open circular hole of the self-tapping screw fixing seat 40 , so that the self-tapping screw 39 can be directly locked, and the installation is convenient, fast and accurate.

In an optional embodiment, the connecting structure 2 includes a rotating portion 21 and a bending portion 22, wherein the rotating portion 21 and the bending portion 22 are separable, and relative movement in a preset direction can be generated between the rotating portion 21 and the bending portion 22, so that the positional relationship between the hinge cup structure 1 and the hinge arm structure 3 can be fine-tuned, that is, the relative positional relationship between the door and the door frame can be fine-tuned, thereby allowing a certain error in the assembly position of the hinge cup structure 1 and the hinge arm structure 3.

The rotating portion 21 includes a hinge area 211 and a first hinge arm fixing area 212 .

The first hinge arm fixing area 212 is provided with a slide rail 2121; correspondingly, the bending portion 22 also includes a second hinge arm fixing area 221, and the second hinge arm fixing area 221 is provided with a guide groove 2211 and a buckle 2213. The guide groove 2211 can be slidably inserted into the slide rail 2121. The buckle 2213 is located on the surface of the second hinge arm fixing area 221 close to the hinge cup structure 1, and the buckle 2213 is used to limit the slide rail 2121 from being separated from the guide groove 2211. The second hinge arm fixing area 221 can be vertically fixed to one end of the hinge arm mounting area 222.

As shown in Figure 11, the first hinge arm fixing area 212 is provided with two opposite slide rails 2121, and the two slide rails 2121 are correspondingly located on both sides thereof. As shown in Figure 10, the second hinge arm fixing area 221 is provided with two opposite guide grooves 2211 and two opposite buckles 2213, and the two guide grooves 2211 are correspondingly located on both sides of the second hinge arm fixing area 221, and the buckles 2213 are located on the outside of the two guide grooves 2211. The slide rail 2121 can slide into the guide groove 2211 and be restricted from disengaging by the buckles 2213. Under the action of external force, the slide rail 2121 can be slightly slid and adjusted in the guide groove 2211. This sliding and snapping method facilitates the fitting and fixing of the rotating part 21 and the bending part 22, and improves the strength.

The first hinge arm fixing area 212 is also provided with a tenth through hole 2122; the second hinge arm fixing area 221 is also provided with an eleventh through hole 2212; wherein the tenth through hole 2122 corresponds to the eleventh through hole 2212 in position so that the third eccentric nail 23 can pass through; wherein the tenth through hole 2122 is a waist-shaped hole, the tenth through hole 2122 is used to slidably insert the nut of the third eccentric nail 23, and the eleventh through hole 2212 is used to insert the screw of the third eccentric nail 23; the third eccentric nail 23 is used to adjust the relative position relationship between the first hinge arm fixing area 212 and the second hinge arm fixing area 221 along a predetermined direction. Since the slide rail 2121 can slide slightly in the guide groove 2211. Therefore, the installer can adjust the relative position relationship between the first hinge arm fixing area 212 and the second hinge arm fixing area 221 by rotating the third eccentric nail 23.

Of course, in some embodiments, the rotating portion 21 and the bending portion 22 may also be fixed in other ways, or even integrally formed.

The hinge area 211 is used for hinge connection with the hinge cup structure 1. In some embodiments, the hinge area 211 may include a reel 2111 and an arc ear 2112, wherein the arc ear 2112 is an extension of the hinge area on both sides. As shown in FIGS. 8 to 9, the hinge cup structure 1 is provided with a hinge portion 17, and first pin holes 172 are provided on both sides of the hinge portion 17. The first axial pin 171 passes through the first pin hole 172 and the reel 2111 to realize the hinge connection between the hinge area 211 and the hinge cup structure 1. Of course, in some embodiments, other structures can also be used to realize the hinge connection.

The structure of the hinge cup structure 1 is introduced below.

In an optional embodiment, the hinge cup structure 1 provides a pressing force for closing the door.

The hinge cup structure includes: a hinge cup body 11 and a torsion spring.

The hinge cup body 11 is provided with a groove 111, and the side walls of the groove 111 are respectively provided with a square hole 112 and a special-shaped hole 113. The torsion spring includes a torsion spring body, a claw and an extension portion extended from the torsion spring body; the claw is fixed to the square hole 112, and the extension portion passes through the special-shaped hole 113 and can be abutted against one end of the connecting structure 2. Wherein, when the angle between the hinge cup structure 1 and the connecting structure 2 is in the first range, the extension portion abuts against one end of the connecting structure 2 and generates a force on the connecting structure 2. There can be multiple torsion springs, such as a first torsion spring 12 and a second torsion spring 13, and the first torsion spring 12 and the second torsion spring 13 are respectively located on both sides of the hinge cup body 11. Wherein, the first torsion spring 12 is provided with a first claw 121 and a first extension portion 122. The second torsion spring 13 is provided with a second claw 131 and a second extension portion 132.

Based on the above structure, when the door is pushed closed to an angle of about 40-35, the first torsion spring 12 and the second torsion spring 13 press the connection structure 2 by supporting the arc ear 2112, and the generated pressure force drives the door to rotate and close around the roller 2111 as the axis.

In an optional embodiment, the hinge cup structure 1 provides a damping force to buffer the penetration force of the rotating door closing.

The hinge cup structure includes: a hinge cup body 11 and a damping device 16. The hinge cup body 11 is provided with a groove 111. The damping device 16 includes a damper 162; the damper 162 is located in the groove 111, with one end facing the inner wall of the groove 111 and the other end facing one end of the connecting structure 2; wherein, when the angle between the hinge cup structure 1 and the connecting structure 2 is in the second range, the ends of the damper 162 respectively abut between the inner wall of the groove 111 and the end of the connecting structure and generate a damping force. During the door closing process, when the hinge area 211 of the connecting structure 2 contacts one end of the damping device 16, the damping force of the damping device 16 can buffer the rotary door closing penetration force, so that the door closes slowly and softly, eliminating the noise generated by the door hitting the door frame.

In some embodiments, the damper 162 may include an oil cylinder and a damping rod, one end of the damping rod abuts against the inner wall of the groove 111, and the other end of the damping rod is located in the oil cylinder. The bottom outer wall of the oil cylinder is an inclined surface. When the hinge area 211 of the connection structure 2 contacts the inclined surface of the oil cylinder, a thrust is generated on the oil cylinder, which in turn causes the oil cylinder to generate a directional damping force, slowing down the rotation speed of the door connection structure 2. It should be noted that the inclined surface is provided to help evenly distribute the force, increase the service life of the damper, and thus increase the service life of the device.

It should be noted that a torsion spring or a damping device can be provided in the hinge cup structure 1, or both can be provided. When both are provided, the door can be driven to rotate around the roller 2111 to close the door, and the noise generated by the door hitting the door frame can be eliminated.

In an optional embodiment, a switch function can also be provided, that is, the door is fixed in a specific state. The damping device 16 also includes: a clamp 161 and a switch 163; wherein the clamp 161 is fixed above the groove 111 and forms a receiving space with the groove 111, and the receiving space is used to limit the range of motion of the damper 162; a snap-fit groove 1611 is provided on one side of the clamp 161; the switch 163 is slidably located on the snap-fit groove 1611 and is provided with a downward convex column. Accordingly, a protrusion 1621 is provided on the outer wall of the damper 162; wherein, when the switch 163 slides to the first position range, the convex column contacts the protrusion 1621, and when the switch part slides to the second position range, the convex column is separated from the protrusion 1621.

When the switch 163 slides to the first position range, the convex column of the switch 163 prevents the damper 162 (oil cylinder) from being compressed by contacting the protrusion 1621, thereby preventing the rotation of the connection structure 2 and further preventing the rotation of the door. When the switch 163 slides to the second position range, the convex column under the switch 163 leaves the protrusion 1621, and at this time, the damper 162 (oil cylinder) generates a damping force to slow down the rotation of the connection structure 2 under the thrust of the hinge area 211 of the connection structure 2, but does not prevent the connection structure 2 from further rotating.

In some embodiments, the bottom of the boss is an inclined surface. When the boss moves close to the damper 162, if the oil cylinder of the oil damper 162 approaches the damping rod, the protrusion 1621 will break through the inclined surface to the back of the inclined surface and abut against the back. At this time, the damper 162 will not generate damping force within a certain range of angle opening and closing.

In an optional embodiment, the hinge cup structure 1 further includes a torsion spring protective sleeve, which is sleeved on the torsion spring. There may be multiple torsion spring protective sleeves, such as a first torsion spring protective sleeve 14 and a second torsion spring protective sleeve 15. The first torsion spring protective sleeve 14 is sleeved on the first torsion spring 12, and the second torsion spring protective sleeve 15 is sleeved on the second torsion spring 13. The torsion spring protective sleeve includes two separate parts, wherein the first part is sleeved on the claw, and the second part is sleeved on the torsion spring body and the extension. The second part includes a sleeve adapted to one end of the torsion spring body, and a shaft column is provided in the middle of the sleeve, and the shaft column is inserted into the coil of the torsion spring body.

Embodiment 2

The difference from the first embodiment lies in the structure and matching relationship between the hinge arm mounting area 222, the first fixing plate 34 and the pressing portion 31. Therefore, the hinge cup structure 1, the rotating portion 21 in the connection structure 2, the second fixing plate 35 in the hinge arm structure 3, the base 36 and other components can all refer to the first embodiment, and will not be described in detail in this embodiment.

As shown in Figures 16-22, the cup-shaped concealed hinge that can be quickly disassembled and assembled in this embodiment may include: a hinge cup structure 1, a connecting structure 2, and a hinge arm structure 3. The connecting structure 2 and the hinge cup structure 1 are hinged together. The connecting structure 2 includes a bending portion 22. The bending portion 22 includes a hinge arm mounting area 222, and the hinge arm mounting area 222 has a downward-opening slide groove 2221. The hinge arm mounting area 222 also includes a third axle pin 2222, and the third axle pin 2222 spans between the two sides of the slide groove 2221, and the third axle pin 2222 is located in the hinge arm mounting area 222 away from the end of the hinge cup structure 1. The hinge arm structure 3 includes a pressing portion 31, and the pressing portion 31 includes a snap-fitting part 311. In the assembled state, the hinge arm structure 3 is snapped into the slide groove 2221, and the third axle pin 2222 slides to the snap-fitting part 311, and The third axle pin 2222 is engaged and fixed with the fastener 311 to fix the connection structure 2 and the hinge arm structure 3. In the disassembled state, the third axle pin 2222 and the fastener 311 are disengaged to separate the connection structure 2 and the hinge arm structure 3.

In the assembled state, the hinge arm structure 3 is inserted into the slide groove 2221, and the third axle pin 2222 slides to the snap member 311 and is snapped and fixed with the snap member 311, so that the connection structure 2 and the hinge arm structure 3 are fixedly connected. In the disassembled state, the third axle pin 2222 and the snap member 311 are disengaged, so that the connection structure 2 and the hinge arm structure 3 are separated. The installer can slide the bending portion 22 onto the hinge arm structure 3, so that the hinge arm structure 3 is accommodated in the slide groove 2221, and then press the position where the third axle pin 2222 is located, so that the third axle pin 2222 and the snap member 311 are snapped, thereby realizing the rapid installation of the cup-shaped concealed hinge. In addition, the installer can also press the pressing portion 31, so that the snap member 311 and the third axle pin 2222 are disengaged, thereby realizing the rapid disassembly of the cup-shaped concealed hinge, and then the door can be quickly removed from the corresponding door frame.

In the above embodiment, it is introduced that the engaging or disengaging between the locking member 311 in the pressing portion 31 and the third shaft pin 2222 is realized, thereby realizing the installation and disassembly between the connecting structure 2 and the hinge arm structure 3 .

In an optional embodiment, the pressing portion 31 further includes: a third torsion spring 313 and a second shaft pin 312 .

The third torsion spring 313 can be a double torsion spring or more than two single torsion springs. The second axle pin 312, the second axle pin 312 passes through the clip 311 and the third torsion spring 313. Wherein, under the action of external force, the clip 311 rotates open with the second axle pin 312 as the axis, so that the third axle pin 2222 is aligned with the clip 311, and when the external force disappears, the clip 311 rotates back with the second axle pin 312 as the axis under the torsion of the third torsion spring 313, so that the clip 311 is engaged and fixed with the third axle pin 2222. In this optional embodiment, the structure is simple, making it more convenient to disassemble and install.

In an optional embodiment, the hinge arm structure 3 may further include a hook 41 and a special-shaped cavity 42 .

The hook 41 extends from the end of the hinge arm structure 3 and is located on both sides of the hinge arm structure 3; the upper edge of the hook 41 forms a special-shaped cavity 42 with an opening facing upward. Correspondingly, the upper edges of both sides of the buckle 311 are provided with semicircular holes 3111. In the assembled state, the special-shaped cavity 42 and the semicircular hole 3111 form a fixing hole, which is used to fix the third shaft pin 2222.

The installer can slide the bending portion 22 onto the top of the hinge arm structure 3, so that the hinge arm structure 3 is accommodated in the sliding groove 2221, and then press the position of the third axis pin 2222. Since the third axis pin 2222 rests on the latch 311, the latch 311 is subjected to the extrusion force, which will cause the pressing portion 31 to rotate clockwise around the second axis pin 312 to open, and then the third axis pin 2222 falls into the bottom of the special-shaped cavity 42. At this time, stop pressing the position of the third axis pin 2222, the extrusion force on the latch 311 disappears, and under the action of the torsion of the third torsion spring 313, the pressing portion 31 rotates counterclockwise around the second axis pin 312 to return to the initial position or a position close to the initial position, and the semicircular hole 3111 is just stuck in the third axis pin 2222, and the semicircular hole 3111 and the special-shaped cavity 42 form a fixing hole. The opening size of the fixing hole is smaller than the diameter of the third axle pin 2222, so the fixing hole can clamp and fix the third axle pin 2222, thereby realizing the rapid installation of the cup-shaped concealed hinge. As shown in Figures 15A to 15D, the user can press the pressing portion 31, and the buckle 311 is subjected to pressure, which causes the pressing portion 31 to rotate clockwise around the second axle pin 312 to open, so that the semicircular hole 3111 is separated from the third axle pin 2222, and the fixing hole structure is destroyed, so that the third axle pin 2222 can be separated from the special-shaped cavity 42, thereby realizing the rapid disassembly of the cup-shaped concealed hinge.

Of course, the installer can also press the pressing portion 31 to make the pressing portion 31 rotate clockwise around the second shaft pin 312, so that the third shaft pin 2222 falls into the bottom of the special-shaped cavity 42. After the installer releases the pressing portion 31, under the action of the torsion of the third torsion spring 313, the pressing portion 31 rotates counterclockwise around the second shaft pin 312 to return to the initial position or a position close to the initial position, and the semicircular hole 3111 is just inserted into the third shaft pin 2222. The semicircular hole 3111 and the special-shaped cavity 42 form a fixing hole, and the fixing hole is fixedly engaged with the third shaft pin 2222. The same is true for disassembly.

In some embodiments, the pressing portion 31 is provided with a groove. The bottom surface of the groove extends outward to form a pressing surface for the installer to press. As described above, the pressing portion 31 includes a buckle 311, a second shaft pin 312 and a third torsion spring 313. The fastener 311 is further provided with a circular hole 3112. The circular holes 3112 are respectively located on both sides of the fastener 311. The circular hole 3112 and the main body of the third torsion spring 313 are coaxial. The second shaft pin 312 penetrates the second pin hole 345, the circular hole 3112, and the third torsion spring 313 to achieve the hinge of the pressing part 31.

It should be noted that the third torsion spring 313 may be a double torsion spring, the extension legs at both ends of the double torsion spring abut against the bottom of the first fixing plate 34, and the extension portion in the middle of the double torsion spring abuts against the bottom edge of the groove of the pressing portion 31. Of course, the third torsion spring 313 may also be a single torsion spring, or other components that generate torsion.

In an optional embodiment, the hinge arm mounting area 222 is further provided with a first protrusion 2223: the first protrusion 2223 is respectively located on the inner walls of both sides of the slide groove 2221. Correspondingly, the hinge arm structure 3 is provided with a second concave bayonet 33: the second concave bayonet 33 is respectively located on both sides of the hinge arm structure 3, and the opening direction faces the hinge cup structure 1. The first protrusion 2223 and the second concave bayonet 33 are engaged and fixedly connected.

The opening of the second concave bayonet 33 is oriented vertically. During the installation process, the user can slightly tilt the hinge arm installation area 222 and slide it from left to right onto the hinge arm structure 3 until the first protrusion 2223 and the second concave bayonet 33 are locked. Then, the slightly tilted end of the hinge arm installation area 222 is pressed downward until the buckle 311 is locked and fixed with the third shaft pin 2222, so that the hinge arm installation area 222 can be quickly fixed on the hinge arm structure 3.

It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and/or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and/or combinations thereof.

For the convenience of description, the orientation or position relationship indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, vertical, horizontal" and "top, bottom" is usually based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Therefore, the exemplary term "above..." can include both "above..." and "below..." orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here are interpreted accordingly.

Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

Unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is lower in level than the second feature.

Unless otherwise specifically stated, the relative arrangement of the components and steps, numerical expressions, and numerical values described in these embodiments do not limit the scope of the present application. At the same time, it should be understood that for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods, and devices known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods, and devices should be considered as part of the authorized specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

It should also be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when a specific feature, structure or characteristic is described in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of this application.

In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

It should also be noted that the above are only preferred embodiments of the present application, and the patent protection scope of the present application is not limited thereto. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

An American damping hinge capable of rapid disassembly and assembly, characterized by comprising:

Hinge cup structure;

A connecting structure, wherein the connecting structure and the hinge cup structure are hinged together; the connecting structure comprises a bending portion; the bending portion comprises a hinge arm mounting area, the hinge arm mounting area has a downwardly opening slide groove, the slide groove is provided with a clamping groove, and the clamping groove is located at an end of the slide groove away from the hinge cup structure;

The hinge arm structure comprises a pressing portion, wherein the pressing portion comprises a snap fastener;

Among them, in the assembled state, the hinge arm structure is inserted into the sliding groove, the slot slides to the latch and is engaged and fixed with the latch to fix the connecting structure and the hinge arm structure. In the disassembled state, the slot and the latch are disengaged to separate the connecting structure and the hinge arm structure.
The American damping hinge capable of rapid disassembly and assembly according to claim 1, characterized in that the pressing portion further comprises:

third torsion spring;

a second shaft pin, the second shaft pin passing through the buckle and the third torsion spring;

Among them, under the action of external force, the fastener rotates open with the second axle pin as the axis so that the slot is aligned with the fastener, and when the external force disappears, the fastener rotates to the initial position with the second axle pin as the axis under the action of the torsion of the third torsion spring, so that the fastener is engaged and fixed with the slot.
The American damping hinge capable of rapid disassembly and assembly according to claim 1 is characterized in that:

The hinge arm mounting area is also provided with a first protrusion and a first concave bayonet, wherein:

The first protrusions are respectively located on the inner walls of both sides of the slide groove;

The first concave bayonet is respectively located on both sides of the slide slot, and the opening direction faces the hinge arm structure;

Correspondingly, the hinge arm structure is provided with a second protrusion and a second concave bayonet:

The second protrusions are respectively arranged on the outer walls of both sides of the hinge arm structure;

The second recessed bayonet is located at two sides of the hinge arm structure respectively, and the opening direction faces the hinge cup structure;

Wherein, the first protrusion and the second concave bayonet are fixedly connected by snapping, and the second protrusion and the first concave bayonet are fixedly connected by snapping.
The American damping hinge capable of rapid disassembly and assembly according to claim 1 is characterized in that:

The hinge arm installation area is provided with a plurality of holes that penetrate each other, and the plurality of holes include: a first passage hole, a second passage hole, and a third passage hole;

Correspondingly, the hinge arm structure further includes:

A first fixing plate, the first fixing plate is fixedly connected to the hinge arm mounting area; the first fixing plate is provided with a first through hole, a second through hole, and a third through hole;

A second fixing plate, fixed below the first fixing plate; the second fixing plate is provided with a fourth through hole, a fifth through hole, and a sixth through hole;

A base, fixed below the second fixing plate; the base is provided with a seventh through hole and a ninth through hole;

Wherein, the first passage hole, the first through hole, the fourth through hole, and the seventh through hole are located in corresponding positions so as to allow the self-tapping screws to pass through;

The second passage hole, the second through hole, and the fifth through hole are located in corresponding positions; the second through hole is a waist-shaped hole, the second through hole is used to slidably insert the nut of the first eccentric nail, and the fifth through hole is used to insert the screw of the first eccentric nail;

The third passage hole, the third through hole, the sixth through hole, and the ninth through hole are located in corresponding positions; the sixth through hole is a waist-shaped hole, the sixth through hole is used to slidably insert the nut of the second eccentric nail, and the ninth through hole is used to insert the screw of the second eccentric nail.
The American damping hinge capable of rapid disassembly and assembly according to claim 1 is characterized in that the connection structure further comprises a rotating portion, the rotating portion comprising a hinge area and a first hinge arm fixing area;

Wherein, the first hinge arm fixing area is provided with: a slide rail;

Correspondingly, the bending portion further includes a second hinge arm fixing area, and the second hinge arm fixing area is provided with:

A guide groove, slidably inserted into the slide rail;

A buckle is located in the second hinge arm fixing area on a surface close to the hinge cup structure, and the buckle is used to limit the slide rail from being separated from the guide groove.
The American damping hinge capable of rapid disassembly and assembly according to claim 5 is characterized in that:

The first hinge arm fixing area is also provided with a tenth through hole;

The second hinge arm fixing area is also provided with an eleventh through hole;

Wherein, the tenth through hole corresponds to the eleventh through hole in position so as to allow the third eccentric nail to pass through;

Among them, the tenth through hole is a waist-shaped hole, the tenth through hole is used to slidably insert the nut of the third eccentric nail, and the eleventh through hole is used to insert the screw of the third eccentric nail; the third eccentric nail is used to adjust the relative position relationship between the first hinge arm fixing area and the second hinge arm fixing area along a predetermined direction.
The American damping hinge capable of rapid disassembly and assembly according to claim 1 is characterized in that the hinge cup structure comprises:

The hinge cup body is provided with a groove, and the side walls of the groove are respectively provided with a square hole and a special-shaped hole in sequence;

The torsion spring comprises a torsion spring body, a claw and an extension portion extending from the torsion spring body; the claw is fixed to the square hole, and the extension portion passes through the special-shaped hole and can be abutted against one end of the connecting structure;

Wherein, when the angle between the hinge cup structure and the connection structure is within a first range, the extension portion abuts against one end of the connection structure and generates a force on the connection structure.
The American damping hinge capable of rapid disassembly and assembly according to claim 1 is characterized in that the hinge cup structure comprises:

The hinge cup body is provided with a groove;

A damping device, the damping device comprising a damper; the damper is located in the groove, with one end facing the inner wall of the groove and the other end facing one end of the connecting structure;

Wherein, when the angle between the hinge cup structure and the connection structure is in the second range, the ends of the damper respectively abut against the inner wall of the groove and the ends of the connection structure to generate a damping force.
The American damping hinge capable of rapid disassembly and assembly according to claim 8 is characterized in that:

The damping device further comprises: a clamp and a switch; wherein the clamp is fixed above the groove and forms a receiving space with the groove, and the receiving space is used to limit the range of motion of the damper; a clamping groove is provided on one side of the clamp; the switch is slidably located on the clamping groove and is provided with a downward convex column;

Correspondingly, a protrusion is provided on the outer wall of the damper;

When the switch slides to a first position range, the convex column contacts the protrusion, and when the switch slides to a second position range, the convex column separates from the protrusion.
The American damping hinge capable of rapid disassembly and assembly according to claim 8, characterized in that the hinge cup structure further comprises:

A torsion spring protection sleeve is sleeved on the torsion spring.
A cup-shaped concealed hinge capable of rapid assembly and disassembly, characterized in that it comprises:

Hinge cup structure;

A connecting structure, wherein the connecting structure and the hinge cup structure are hinged together; the connecting structure comprises a bending portion; the bending portion comprises a hinge arm mounting area, the hinge arm mounting area has a sliding groove opening downward, the hinge arm mounting area further comprises a third axle pin, the third axle pin is connected across two sides of the sliding groove, and the third axle pin is located at an end of the hinge arm mounting area away from the hinge cup structure;

The hinge arm structure comprises a pressing portion, wherein the pressing portion comprises a snap fastener;

Among them, in the assembled state, the hinge arm structure is inserted into the slide groove, the third axle pin slides to the latch and is engaged and fixed with the latch to fix the connecting structure and the hinge arm structure. In the disassembled state, the third axle pin and the latch are disengaged to separate the connecting structure and the hinge arm structure.
The quickly detachable cup-shaped concealed hinge according to claim 11, characterized in that the pressing portion further comprises:

third torsion spring;

a second shaft pin, the second shaft pin passing through the buckle and the third torsion spring;

Among them, under the action of external force, the fastener rotates open with the second axle pin as the axis so that the third axle pin is aligned with the fastener, and when the external force disappears, the fastener rotates back with the second axle pin as the axis under the action of the torsion of the third torsion spring, so that the fastener is engaged and fixed with the third axle pin.
The quickly detachable cup-shaped concealed hinge according to claim 12, characterized in that the hinge arm structure further comprises:

A hook extending from the end of the hinge arm structure and located at two sides of the hinge arm structure; wherein the upper edge of the hook forms a special-shaped cavity with an opening facing upward;

Correspondingly, the upper edges of both sides of the buckle are provided with semicircular holes;

Wherein, in the assembled state, the special-shaped cavity and the semicircular hole form a fixing hole, and the fixing hole is used to fix the third shaft pin.
The quickly detachable cup-shaped concealed hinge according to claim 11 is characterized in that:

The hinge arm mounting area is also provided with a first protrusion:

The first protrusions are respectively located on the inner walls of both sides of the slide groove;

Correspondingly, the hinge arm structure is provided with a second concave bayonet:

The second recessed bayonet is located at two sides of the hinge arm structure respectively, and the opening direction faces the hinge cup structure;

Wherein, the first protrusion and the second concave bayonet are fixedly connected by snapping.
The quickly detachable cup-shaped concealed hinge according to claim 11 is characterized in that:

The hinge arm installation area is provided with a plurality of holes that penetrate each other, and the plurality of holes include: a first passage hole, a second passage hole, and a third passage hole;

Correspondingly, the hinge arm structure further includes:

A first fixing plate, the first fixing plate is fixedly connected to the hinge arm mounting area; the first fixing plate is provided with a first through hole, a second through hole, and a third through hole;

A second fixing plate, fixed below the first fixing plate; the second fixing plate is provided with a fourth through hole, a fifth through hole, and a sixth through hole;

A base, fixed below the second fixing plate; the base is provided with a seventh through hole and a ninth through hole;

Wherein, the first passage hole, the first through hole, the fourth through hole, and the seventh through hole are located in corresponding positions so as to allow the self-tapping screws to pass through;

The second passage hole, the second through hole, and the fifth through hole are located in corresponding positions; the second through hole is a waist-shaped hole, the second through hole is used to slidably insert the nut of the first eccentric nail, and the fifth through hole is used to insert the screw of the first eccentric nail;

The third passage hole, the third through hole, the sixth through hole and the ninth through hole are positioned correspondingly; the sixth through hole is a waist-shaped hole, and the sixth through hole is used to slidably fit the nut of the second eccentric nail, and the ninth through hole is used to fit the screw of the second eccentric nail.
The quickly detachable cup-shaped concealed hinge according to claim 11 is characterized in that:

The connection structure further comprises a rotating portion, wherein the rotating portion comprises a hinge area and a first hinge arm fixing area;

Wherein, the first hinge arm fixing area is provided with: a slide rail;

Correspondingly, the bending portion further includes a second hinge arm fixing area, and the second hinge arm fixing area is provided with:

A guide groove, slidably inserted into the slide rail;

A buckle is located in the second hinge arm fixing area on a surface close to the hinge cup structure, and the buckle is used to limit the slide rail from being separated from the guide groove.
The quickly detachable cup-shaped concealed hinge according to claim 16 is characterized in that:

The first hinge arm fixing area is also provided with a tenth through hole;

The second hinge arm fixing area is also provided with an eleventh through hole;

Wherein, the tenth through hole corresponds to the eleventh through hole in position so as to allow the third eccentric nail to pass through;

Among them, the tenth through hole is a waist-shaped hole, the tenth through hole is used to slidably insert the nut of the third eccentric nail, and the eleventh through hole is used to insert the screw of the third eccentric nail; the third eccentric nail is used to adjust the relative position relationship between the first hinge arm fixing area and the second hinge arm fixing area along a predetermined direction.
The cup-shaped concealed hinge capable of rapid disassembly and assembly according to claim 11, characterized in that the hinge cup structure comprises:

The hinge cup body is provided with a groove, and the side walls of the groove are respectively provided with a square hole and a special-shaped hole in sequence;

The torsion spring comprises a torsion spring body, a claw and an extension portion extending from the torsion spring body; the claw is fixed to the square hole, and the extension portion passes through the special-shaped hole and can be abutted against one end of the connecting structure;

Wherein, when the angle between the hinge cup structure and the connection structure is within a first range, the extension portion abuts against one end of the connection structure and generates a force on the connection structure.
The cup-shaped concealed hinge capable of rapid disassembly and assembly according to claim 11, characterized in that the hinge cup structure comprises:

The hinge cup body is provided with a groove;

A damping device, the damping device comprising a damper; the damper is located in the groove, with one end facing the inner wall of the groove and the other end facing one end of the connecting structure;

Wherein, when the angle between the hinge cup structure and the connection structure is in the second range, the ends of the damper respectively abut against the inner wall of the groove and the ends of the connection structure to generate a damping force.
The quickly detachable cup-shaped concealed hinge according to claim 19 is characterized in that:

The damping device further comprises: a clamp and a switch; wherein the clamp is fixed above the groove and forms a receiving space with the groove, and the receiving space is used to limit the range of motion of the damper; a clamping groove is provided on one side of the clamp; the switch is slidably located on the clamping groove and is provided with a downward convex column;

Correspondingly, a protrusion is provided on the outer wall of the damper;

When the switch slides to a first position range, the convex column contacts the protrusion, and when the switch slides to a second position range, the convex column separates from the protrusion.