WO2024146110A1

WO2024146110A1 - American-style cup hinge quick to disassemble and assemble and cup-shaped concealed hinge quick to disassemble and assemble

Info

Publication number: WO2024146110A1
Application number: PCT/CN2023/107372
Authority: WO
Inventors: 吴腾庆; 吴积庆
Original assignee: 吴腾庆
Priority date: 2023-01-03
Filing date: 2023-07-14
Publication date: 2024-07-11

Abstract

Provided in the embodiments of the present application are an American-style cup hinge quick to disassemble and assemble. Said American-style cup hinge comprises: a hinge cup structure, a connection structure and a hinge arm structure. The connection structure comprises: a connection portion; a hinge joint portion, fixedly connected to a first end of the connection portion and used for being hinged to the hinge cup structure; and a strip-shaped mounting portion, fixedly connected to a second end of the connection portion, wherein the strip-shaped mounting portion is provided with a slide slot having a downward opening, the slide slot is provided with snapping recesses, and the snapping recesses are located in the end in the slide slot away from the connection portion. The hinge arm structure comprises: a snap-fit member, located at the end in the hinge arm structure away from the connection structure. The technical solution of the embodiments of the present application can achieve fixed connection and disconnection of the connection structure and the hinge arm structure by means of the fixed connection and disconnection of the snap-fit member and the snapping recesses, thereby achieving rapid assembling and disassembling of American-style cup hinges.

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 used to connect two solids and allow them to rotate relative to each other. It is mostly installed on cabinet furniture. Among them, the American damping hinge is a hydraulic buffer hinge with an ideal buffering effect. Its characteristic is that it provides a buffering function when the cabinet door is closed, which minimizes the noise caused by the collision between the cabinet door and the cabinet body when it is closed. However, the existing American damping hinge has a relatively complex structure and cannot be assembled and disassembled quickly.

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, an American damping hinge that can be quickly disassembled and assembled includes: a hinge cup structure, a connecting structure, and a hinge arm structure; wherein the connecting structure includes: a connecting portion; a hinge portion, fixedly connected to the first end of the connecting portion, and used for hinged connection with the hinge cup structure; a strip mounting portion, fixedly connected to the second end of the connecting portion, and the strip mounting portion is provided with a slide groove with a notch downward; wherein the slide groove is provided with a clamping groove, and the clamping groove is located at the end of the slide groove away from the connecting portion; wherein the hinge arm structure includes a snap-fit piece, which is located at the end of the hinge arm structure away from the connecting structure; wherein, in the assembled state, the hinge arm structure is clamped into the slide groove, the clamping groove of the strip mounting portion is slid to the snap-fit piece, and is fixedly connected to the snap-fit piece, so that the connecting structure is fixedly connected to the hinge arm structure; in the disassembled state, the clamping groove and the snap-fit piece are disengaged, so that the connecting structure is disengaged from 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, and a hinge arm structure; wherein the connecting structure includes: a connecting part; a hinge part, fixedly connected to the first end of the connecting part, and used for hinged connection with the hinge cup structure; a strip-shaped mounting part, fixedly connected to the second end of the connecting part, and the strip-shaped mounting part is provided with a slide groove with a notch downward; a first axle pin, fixedly straddling the end in the slide groove away from the connecting part; wherein the hinge arm structure includes a snap-fit piece, located at the end of the hinge arm structure away from the connecting structure; wherein, in the assembled state, the hinge arm structure is snapped into the slide groove, the first axle pin is slid to the snap-fit piece, and is fixedly connected to the snap-fit piece, so that the connecting structure is fixedly connected to the hinge arm structure; in the disassembled state, the first axle pin and the snap-fit piece are disengaged, so that the connecting structure is disengaged from the hinge arm structure

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

When the installer assembles the American damping hinge, the strip-shaped installation part can be slid onto the hinge arm structure and slid toward the buckle so that the hinge arm structure is accommodated in the slide slot. When the slot of the connecting structure contacts the buckle, the position of the slot is pressed so that the slot of the connecting structure is stuck by the buckle. When disassembling the American damping hinge, the buckle can be pressed to disengage the buckle from the slot and pull out the connecting structure, so as to realize the rapid disassembly of the American damping hinge and quickly remove the door from the corresponding door frame.

The connection structure and the hinge cup structure are installed as one part on the door or door frame. The hinge arm structure is installed as one part on the door frame or door. Based on the cooperation of the card slot and the buckle, the connection structure and the hinge arm structure can be quickly installed and disassembled, thereby facilitating the installation and disassembly of the door and the door frame.

BRIEF DESCRIPTION OF THE DRAWINGS

In the drawings, unless otherwise specified, the same reference numerals refer to the same or similar components throughout the several drawings. 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 a schematic diagram of the disassembly of the quickly disassembled American damping hinge provided in Example 1 of the present application.

FIG. 3 is another disassembly schematic diagram of the quickly disassembled American damping hinge provided in the first embodiment of the present application.

FIG. 4 is a schematic diagram of the disassembly of the hinge arm structure provided in the first embodiment of the present application.

FIG. 5 is another disassembly schematic diagram of the quickly disassembled American damping hinge provided in the first embodiment of the present application.

FIG. 6 is another disassembly schematic diagram of the quickly disassembled American damping hinge provided in the first embodiment of the present application.

FIG. 7 is another disassembly schematic diagram of the quickly disassembled American damping hinge provided in the first embodiment of the present application.

FIG. 8 is another disassembly schematic diagram of the quickly disassembled American damping hinge provided in the first embodiment of the present application.

FIG. 9 is another disassembly schematic diagram of the quickly disassembled American damping hinge provided in the first embodiment of the present application.

FIG. 10 is a schematic diagram of the connection structure provided in Embodiment 1 of the present application.

FIG. 11 is a schematic diagram of the assembly of the damper and the fixing part provided in the first embodiment of the present application.

FIG. 12 is another disassembly schematic diagram of the quickly disassembled American damping hinge provided in the first embodiment of the present application.

13A to 13D are schematic diagrams of the installation process of the quickly detachable American damping hinge provided in the first embodiment of the application.

14A to 14D are schematic diagrams of the disassembly process of the quickly disassembled American damping hinge provided in the first embodiment of the application.

15 to 19 are multiple exploded views of the cup-shaped concealed hinge provided in the embodiments 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 (cup-shaped concealed 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 to 14, the American damping hinge that can be quickly disassembled and assembled may include: a hinge cup structure 1, a connecting structure 2, and a hinge arm structure 3. The hinge cup structure 1 and the connecting structure 2 are hinged together, and the connecting 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 connecting structure 2 is hinged on the hinge cup structure 1.

The hinge arm structure 3 can be fixedly installed on the door frame or the door to achieve initial installation and removal with the connecting structure 2.

The connection structure 2 includes: a connection portion 21 , a hinge portion 22 , and a strip-shaped mounting portion 23 .

The connecting portion 21 can be a straight plate, an arc-shaped plate, or a plurality of arc-shaped plates (as shown in FIG. 10 ), which can be determined according to actual needs.

The hinge part 22 is fixedly connected to the first end of the connection part 21 and is used for hinge connection with the hinge cup structure 1. Exemplarily, the end of the hinge part 22 away from the connection part 21 has a reel for hinge connection. It should be noted that the hinge part 22 can also be provided with other hinge structures to realize hinge connection with the hinge cup structure 1.

The strip-shaped mounting portion 23 is fixedly connected to the second end of the connecting portion 21, and the strip-shaped mounting portion 23 is provided with a slide groove with a notch downward. The slide groove is provided with a clamping groove 231, and the clamping groove 231 is located at the end of the slide groove away from the connecting portion 21. In some embodiments, there can be two clamping grooves 231, which are symmetrically distributed.

The hinge arm structure 3 includes a snap-fit component 34 , which is located at an end of the hinge arm structure 3 away from the connection structure 2 .

Among them, in the assembled state, the hinge arm structure 3 is inserted into the slide groove, the strip mounting portion 23, the slot 231 of the strip mounting portion 23 is slid to the fastener 34, and is fixedly connected to the fastener 34, so that the connecting structure 2 is fixedly connected to the hinge arm structure 3; in the disassembled state, the slot 231 and the fastener 34 are disengaged, so that the connecting structure 2 is disengaged from the hinge arm structure 3.

As shown in Figs. 13A to 13D, when assembling the American damping hinge, the installer can cover the strip-shaped mounting portion 23 on the hinge arm structure 3 and slide it toward the latch, so that the hinge arm structure 3 is accommodated in the slide slot. When the latch slot 231 of the connecting structure 2 contacts the latch 34, the position of the latch slot 231 is pressed, so that the latch slot 231 of the connecting structure 2 is locked by the latch 34. As shown in Figs. 14A to 14D, when disassembling the American damping hinge, the latch 34 can be pressed to disengage the latch 34 from the latch slot 231, and the connecting structure 2 can be pulled out, so that the American damping hinge can be quickly disassembled, and the door can be quickly removed from the corresponding door frame.

In this embodiment, the connecting structure 2 and the hinge cup structure 1 are hinged as one part, and the hinge arm structure 3 is taken as one part. The connecting structure 2 is provided with a slot 231, and the hinge arm structure 3 is provided with a snap member 34. The connecting structure 2 and the hinge arm structure 3 are quickly fixed and disconnected by the snap member 34 and the slot 231, thereby realizing the rapid assembly and disassembly of the American damping hinge, and thereby realizing the rapid installation and disassembly of the door.

In an optional embodiment, the two sides of the slide groove are respectively provided with: a first clamping block 232 and a first engaging recess 233. The first clamping block 232 is respectively located on the inner wall of the slide groove. The first engaging recess 233 is respectively arranged on the outer edges of the two sides of the slide groove, and opens downward. The first engaging recess 233 can be located at one end of the outer edge away from the hinge cup structure 1. Correspondingly, the two outer sides of the hinge arm structure 3 are provided with: a second clamping block 315 and a second engaging recess 316. The second clamping block 315 is respectively located on the outer walls of the two sides of the hinge arm structure 3. The second engaging recess 316 is respectively located on the two sides of the hinge arm structure 3, and the opening direction is toward the hinge cup structure 1. Among them, the first clamping block 232 is fixedly connected with the second engaging recess 316, and the second clamping block 315 is fixedly connected with the first engaging recess 233. By fastening the first clamping block 232 to the second clamping recess 316 and the second clamping block 315 to the first clamping recess 233 , the connection structure 2 and the hinge arm structure 3 can be further fixed, thereby increasing the stability and reliability of the American damping hinge.

The openings of the first engaging recess 233 and the second engaging recess 316 are oriented vertically. During the installation process, the user can slightly tilt the strip-shaped mounting portion 23 and slide it from left to right onto the hinge arm structure 3 until the first clamping block 232 is clamped with the second engaging recess 316. Then, the strip-shaped mounting portion 23 is slightly tilted and pressed downward until the second clamping block 315 is clamped with the first engaging recess 233. In addition, the clamping and fixing of the clamping slot 231 and the buckle 34 can be coordinated, so that the connection structure 2 can be quickly fixed on the hinge arm structure 3.

In some embodiments, other locking structures may be provided on the slide groove and the hinge arm structure 3 , for example, limiting grooves are provided on the inner walls on both sides of the slide groove, and limiting blocks are provided on the two outer sides of the hinge arm structure 3 .

In some embodiments, the first engaging recess 233 and the second engaging recess 316 may be in the shape of a U-shaped recess or The shapes of the first clamping block 232 and the second clamping block 315 can be cylindrical or rectangular, etc. It should be noted that the shapes of the notch and the clamping block are compatible, so that stable clamping can be achieved.

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 structure 3 further includes: a first fixing plate 31, a second fixing plate 32 and a base 33. The first fixing plate 31 is used to fix the strip-shaped mounting portion 23, and the first fixing plate 31 is provided with a first groove opening downward. The second fixing plate 32 can be slidably located in the first groove along a first direction. The base 33 can be slidably located below the second fixing plate 32 along a second direction, and the first direction is perpendicular to the second direction. Based on the slidable arrangement of the first fixing plate 31 on the second fixing plate 32, and the second fixing plate 32 on the base 33, the installer can make fine adjustments in the first direction or the second direction to improve the installation efficiency.

As shown in FIG4 , the base 33 is fixed on the door frame. Three upward claws 331 are provided at both ends of the base 33, two of which are distributed at the same end and the other at the other end, and the two claws 331 distributed at the same end are arranged at intervals. The base 33 is also provided with a plurality of downward convex blocks of equal height for supporting the base 33. The two ends of the second fixing plate 32 are clamped into the claws 331, so that the second fixing plate 32 can be slidably located on the base 33. The second fixing plate 32 includes a bottom plate and side plates located on both sides of the bottom plate; a U-shaped hole 321 is provided at one end of the bottom plate; and the side plates are vertically arranged above the bottom plate. Further, extensions are provided on both sides of the end of the bottom plate, and the extensions are in the same plane as the bottom plate and extend outward, so that the width of the end of the bottom plate is greater than the width of the middle part. Such a setting can ensure that when the second fixing plate 32 and the base 33 slide relative to each other, the end of the second fixing plate 32 is always restricted by the three claws 331 and will not be disengaged. The first fixing plate 31 is provided with an upper plate and two side surfaces, and the upper plate and the two side surfaces form a first groove opening downward. The second fixing plate 32 is inserted into the first groove of the first fixing plate 31, and the two side plates of the second fixing plate 32 abut against the bottom of the second groove and can slide slightly under the action of external force. The above introduces the exemplary structure and matching relationship of the first fixing plate 31, the second fixing plate 32 and the base 33 in the hinge arm structure 3. It should be noted that the above structure can be changed as needed.

The relative position relationship between the first fixing plate 31, the second fixing plate 32 and the base 33 can be fine-tuned by an eccentric screw. In an optional embodiment, the first fixing plate 31 is provided with a first first through hole 312, a first second through hole 313, and a first third through hole 314; the second fixing plate 32 is provided with a second first through hole 322, a second second through hole 323, and a second third through hole 324; the base 33 is provided with a third first through hole 332, a third second through hole 333, and a third third through hole 334; wherein the first first through hole 312, the second first through hole 322, and the third first through hole 332 are located in corresponding positions for the self-tapping screw 5 to pass through; the first second through hole 313, the second second through hole 323, The third-second through hole 333 corresponds in position to allow the first eccentric screw 35 to pass through; the first-second through hole 313 is a waist-shaped hole to accommodate the nut of the first eccentric screw 35; the second-second through hole 323 is used to accommodate the screw rod of the first eccentric screw 35; the first-third through hole 314, the second-third through hole 324, and the third-third through hole 334 correspond in position to allow the second eccentric screw 36 to pass through; the second-third through hole 324 is another waist-shaped hole to accommodate the nut of the second eccentric screw 36; the third-third through hole 334 is used to accommodate the screw rod of the first eccentric screw 35.

The self-tapping screw 5 is passed through the first first through hole 312, the second first through hole 322, and the third first through hole 332 and nailed into the cabinet door or door frame, so that the entire combination of the hinge arm structure 3 and the connecting structure 2 can be quickly installed on the cabinet door. By rotating and adjusting the first eccentric screw 35, the relative position adjustment of the first fixing plate 31 and the second fixing plate 32 in the first direction can be achieved. By rotating and adjusting the second eccentric screw 36, the relative position adjustment of the second fixing plate 32 and the base 33 in the second direction can be achieved. By rotating and adjusting the first eccentric screw 35 and the second eccentric screw 36, the hinge arm structure 3 can be quickly adjusted during installation, thereby slightly adjusting the relative position of the door and the door frame. It should be noted that the first and third through holes 314 are used for tools to pass through to adjust the first eccentric screw 35 after the hinge arm structure 3 is successfully configured. The third and second through holes 333 can allow the screw of the first eccentric screw 35 to be longer, providing the first eccentric screw 35 with a screw activity space when deflection occurs.

It can be seen that by operating the first eccentric screw 35 and the second eccentric screw 36 , the hinge arm structure 3 can be easily fine-tuned.

In an optional embodiment, the first fixing plate 31 is provided with a circular hole 311; the second fixing plate 32 is provided with a U-shaped The strip-shaped mounting portion 23 is provided with a through hole 234; wherein the circular hole 311, the U-shaped hole 321, and the through hole 234 are in corresponding positions, for the adjustment screw 37 to pass through, and the inner edge of the U-shaped hole 321 is slidably engaged with the groove around the adjustment screw 37. By rotating and adjusting the adjustment screw 37, the relative position of the first fixing plate 31 and the second fixing plate 32 in the third direction can be adjusted, thereby quickly adjusting the relative position during installation.

In some embodiments, the strip-shaped mounting portion 23 further includes a plurality of passage holes, and the plurality of passage holes may be through, such as a first passage hole, a second passage hole, and a third passage hole. The first passage hole is aligned with the first first through hole 312 for the self-tapping screw 5 to pass through. The second passage hole is aligned with the first second through hole 313. The second passage hole is aligned with the first third through hole 314. The second passage hole and the second passage hole are for tools (such as a screwdriver) to pass through, so that when the installation is completed, the installer can directly adjust the eccentric screw, etc. from the outside.

In some embodiments, a self-tapping screw fixing seat 4 is disposed in the first passage hole, and a self-tapping screw 34 is inserted into the open circular hole of the self-tapping screw fixing seat 4, so that the self-tapping screw 5 can be directly locked, and the installation is convenient, fast and accurate.

In an optional embodiment, the fastener 34 includes: a double torsion spring 341, a glue 342 and a hook 343. The double torsion spring 341 is provided with two torsion spring end legs 3412 and a torsion spring connecting portion 3411, and the torsion spring connecting portion 3412 is located in the middle of the double torsion spring 341 and abuts against the bottom surface of the first fixing plate 31. A grab hook 3431 is provided above the hook 343, and the grab hook 3431 is used to hook the card slot 231. The hook 342 is provided with a pressing part and a torsion spring abutting part; wherein the pressing part is fixed on one side of the torsion spring abutting part; the pressing part is provided with a pressing surface 3421 on the side away from the double torsion spring 341, and the pressing part is provided with a snap-fitting protrusion on the side facing the double torsion spring 341, and the snap-fitting protrusion is used to fix the hook 343, and the snap-fitting protrusion has an arc surface adapted to the coil of the double torsion spring 341; the torsion spring abutting part is provided with a first U-shaped bayonet, wherein the first U-shaped bayonet is provided corresponding to the two torsion spring end feet, and is used for the two torsion spring end feet to abut against. The double torsion spring is a spring that relies on its torsion elasticity to generate friction to transmit power or motion. The double torsion spring is composed of a right-hand rotating spring coil and a left-hand rotating spring coil, and the use of a double torsion spring has a better effect. In this optional embodiment, by providing a grab hook 3431 on the fastener 34, when it is necessary to assemble the American damping hinge, the grab hook 3431 is clamped in the slot 231, so that the hinge arm structure 3 and the connecting structure 2 can be quickly assembled and fixed. When it is necessary to disassemble the American damping hinge, the pressing surface 3421 is pressed to quickly separate the hinge arm structure 3 and the connecting structure 2.

In some embodiments, the hinge arm structure 3 further includes: a second shaft pin 38, the second shaft pin 38 is sleeved in the double torsion spring 341; correspondingly, the hook 343 is provided with first lugs on both sides, the first lug is provided with a first pin hole 3432; the glue 342 is provided with second lugs on both sides, the second lug is provided with a second pin hole 3422; correspondingly, the first fixing plate is provided with a third pin hole 317; wherein the first pin hole 3432, the second pin hole 3422, and the third pin hole 317 are located in corresponding positions for the second shaft pin 38 to pass through. By passing the second shaft pin 38 through the first pin hole 3432, the second pin hole 3422, and the third pin hole 317, the buckle 34 can be quickly fixedly connected to the first fixing plate 31.

As shown in FIGS. 3 and 4 , the pressing surface 3421 is for installation personnel to press. The grab hook 3431 is used to hook the card slot 231. The upper outer edge of the grab hook 3431 is in an arc shape. The double torsion spring 341 is sleeved on the second shaft pin 38. The second shaft pin 38, the first pin hole 3432, the second pin hole 3422, the third pin hole 317 and the main body of the double torsion spring 341 are coaxial. When the card slot 231 is against the grab hook 3431 and pressed down, since the grab hook 3431 is in an arc shape, the squeeze force on the grab hook 3431 will cause the buckle 34 to rotate clockwise around the second shaft pin 38, and the card slot 231 continues to move downward and reaches a predetermined position. At this time, the slot 231 leaves the outer edge of the hook 3431, and under the reaction force of the double torsion spring 341, the buckle 34 rotates counterclockwise around the second shaft pin 38 to return to the initial position or a position close to the initial position, and the hook 3431 just fits into the slot 231. Of course, the installer can also press the buckle 34 to make the buckle 34 rotate clockwise around the second shaft pin 38 so that the slot 231 reaches the predetermined position. After the installer releases the buckle 34, under the reaction force of the double torsion spring 341, the buckle 34 rotates counterclockwise around the second shaft pin 38 to return to the initial position or a position close to the initial position, and the hook 3431 can just fit into the slot 231. The same is true for disassembly.

It should be noted that the double torsion spring 341 may also be replaced by other components that generate torsion, such as a plurality of single torsion springs.

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 1 includes a hinge cup body 11 and a torsion spring 12 .

The hinge cup body 11 is provided with a groove, and the side walls of the groove are respectively provided with a fourth through hole 112, a boss 113, and a fifth through hole 114; the outer side of the groove is recessed to form a receiving space corresponding to the boss 113. The torsion spring 12 includes a torsion spring body and a first end and a second end extended from the torsion spring body; the torsion spring body is located in the receiving space; the first end and the second end of the torsion spring 12 both extend out of the receiving space; the first end of the torsion spring 12 is provided with a bent extension portion, and the bent extension portion passes through the fourth through hole 112 and extends into the groove; the second end of the torsion spring 12 passes through the fifth through hole 114 and abuts against both sides of the hinge 22.

When the angle between the hinge cup structure 1 and the connection structure 2 is within a first range, the second end of the torsion spring 12 abuts against one end of the connection structure 2 and generates a force on the connection structure 2 .

In some embodiments, the number of the torsion springs 12 can be two, one of which is located on one side of the hinge cup structure 1, and the other is located on the other side of the hinge cup structure. In order to improve the service life, the torsion spring 12 can also be provided with a torsion spring protective cover, and the torsion spring protective cover includes two separate parts, wherein the first part is sleeved on the first end, and the second part is sleeved on the torsion spring body and the second end. 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.

In some embodiments, the hinge cup body 11 may be provided with two wings on both sides of the groove, and the two wings are respectively provided with more than two holes 111. The hinge cup structure 1 can be fixed to the door or door frame through the holes 111.

In some embodiments, the groove may be provided with a fourth pin hole 115 on the side wall near the hinge arm structure 3. The hinge portion 22 is provided with an arc ear and a reel. The arc ears are on both sides of the hinge portion 22 and are used to abut against the second end of the torsion spring 12. The first shaft pin 16 passes through the fourth pin hole 115 and the reel to realize the hinge connection between the connection structure 2 and the hinge cup structure 1. Of course, in some embodiments, other structures can also be used to realize the hinge connection.

In the above embodiment, the first end and the second end of the torsion spring 12 rotate around the torsion spring body. When the torsion spring 12 is acted upon by an external force, the angle between the first end and the second end of the torsion spring gradually decreases, generating a torsion force. The torsion force generates a compressive force on the connection structure 2. Specifically, when the door is pushed to close to about 40-35 degrees, the torsion spring 12 compresses the connection structure 2 by abutting against both sides of the hinge 22, and the generated compressive force drives the door to rotate and close with the first shaft pin 16 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.

In some embodiments, the hinge cup structure 1 further includes: a hinge cup body 11 and a damper 13. The hinge cup body 11 is provided with a groove. The damper 13 is located in the groove; one end faces the inner wall of the groove, and the other end faces one end of the connecting structure. When the angle between the hinge cup structure 1 and the connecting structure 2 is in the second range, the ends of the damper 13 respectively abut against the inner wall of the groove and the end of the connecting structure and generate a damping force.

During the door closing process, when the hinged portion 22 of the connecting structure 2 contacts one end of the damper 13, the damping force of the damper 13 can buffer the penetration force of the rotating door closing, so that the door closes slowly and softly, eliminating the noise generated by the door hitting the door frame.

In some embodiments, the damper 13 includes a cylinder 131 and a damping rod 132. One end of the damping rod 132 abuts against the inner wall of the groove, and the other end of the damping rod 132 is located in the cylinder 131. The outer wall of the bottom surface of the cylinder 131 is a beveled surface. When the hinge 22 of the connecting structure 2 contacts the beveled surface of the cylinder 131, a thrust is generated on the cylinder 131, thereby causing the cylinder 131 to generate a directional damping force, slowing down the rotation speed of the connecting structure 2. Therefore, the damper 13 can reduce the rotation speed of the damping hinge when closing the door, and reduce the impact sound caused by the door panel hitting the door frame due to the excessively fast rotation speed. 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. The damper 13 is also called a damping device, which is a device for increasing damping in order to quickly attenuate the vibration generated by the impact. In some embodiments, the damper 13 can be an oil damper. Commonly used oils include silicone oil, castor oil, machine oil, diesel, engine oil, and transformer oil. The oil damper can be made into a plate type, a piston type, a square cone, a cone, etc. The damper 13 can also be a solid viscous damper, an air damper, a friction damper, etc.

It should be noted that a torsion spring or a damper 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 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 may be provided, that is, the door may be fixed in a specific state. The hinge cup structure 1 further includes: a fixing portion 14 and a switch portion 15. The fixing portion 14 is arranged above the groove, and the shape of the fixing portion 14 is adapted to the shape of the groove, so as to limit the damper 13 from being disengaged from the groove. A bayonet 141 is provided on one side of the switch 14. The switch part 15 is slidably mounted on the bayonet 141 and is provided with a downward convex column 151. Correspondingly, a limit column 1311 is also provided on one side of the damper 13. When the switch part 15 slides to the first position, the convex column 151 contacts the limit column 1311, and when the switch part 15 slides to the second position, the convex column 151 is separated from the limit column 1311.

In some embodiments, the fixing portion 14 is provided with a top plate and two hoops 142. The two hoops 142 are located on both sides below the top plate, and the opposite surfaces of the two hoops 142 are substantially in contact with the outer wall of the damper 13. The space formed by the groove, the top plate and the two hoops 142 is used to restrict and hold the damper 13 to maintain the damper 13 moving along a predetermined path.

The contact and separation of the boss 151 and the limit post 1311 are achieved by sliding the switch part 15, thereby controlling the movement of the oil cylinder 131. When the boss 151 is in contact with the limit post 1311, the oil cylinder 131 cannot move relative to the damping rod 132. When the boss 151 is separated from the limit post 1311, the oil cylinder 131 can move relative to the damping rod 132, and the damper 13 is in an operable state. The operating state of the damper 13 can be quickly controlled by sliding the switch part 15.

In some embodiments, the bottom of the limiting column 1311 is an inclined surface. When the limiting column 1311 moves close to the oil cylinder 131, if the oil cylinder 131 approaches the damping rod 132, it will break through the back of the inclined surface based on the inclined surface and abut against the limiting column 1311. At this time, the angle opening and closing within a certain range will not generate damping force.

Embodiment 2

The difference from the first embodiment lies in the structure and matching relationship between the strip-shaped mounting portion 23, the first fixing plate 31 and the buckle 34. Therefore, the hinge cup structure 1, the connecting portion 21 in the connecting structure 2, the hinge portion 22, the second fixing plate 32 in the hinge arm structure 3, the base 33 and other components can all refer to the first embodiment, and will not be described in detail in this embodiment.

As shown in FIGS. 15-19 , the cup-shaped concealed hinge that can be quickly disassembled and assembled in this embodiment includes: a hinge cup structure 1 , a connection structure 2 , and a hinge arm structure 3 .

The connection structure 2 may include: a connection part 21, a hinge part 22, a strip-shaped mounting part 23 and a first axle pin 24. The hinge part 22 is fixedly connected to the first end of the connection part and is used to be hinged with the hinge cup structure 1. The strip-shaped mounting part 23 is fixedly connected to the second end of the connection part 21, and the strip-shaped mounting part 23 is provided with a slide groove with a notch downward. The first axle pin 24 is fixedly connected across the end of the slide groove away from the connection part 21. The hinge arm structure includes a snap-fitting part 34, which is located at the end of the hinge arm structure 3 away from the connection structure. In the assembled state, the hinge arm structure 3 is snapped into the slide groove, the first axle pin 24 is slid to the snap-fitting part 34, and is fixedly connected with the snap-fitting part 34, so that the connection structure 2 is fixedly connected to the hinge arm structure 3; in the disassembled state, the first axle pin 24 and the snap-fitting part 34 are disengaged, so that the connection structure 2 is disengaged from the hinge arm structure 3.

When assembling the cup-shaped concealed hinge, the installer can cover the strip-shaped mounting portion 23 on the top of the hinge arm structure 3 and slide it toward the buckle, so that the hinge arm structure 3 is accommodated in the slide groove. When the first axle pin 24 of the connecting structure 2 contacts the buckle 34, the position where the first axle pin 24 is located is pressed, so that the first axle pin 24 of the connecting structure 2 is clamped by the buckle 34. When disassembling the cup-shaped concealed hinge, the buckle 34 can be pressed to disengage the buckle 34 from the first axle pin 24, and the connecting structure 2 can be pulled out, so as to realize the rapid disassembly of the cup-shaped concealed hinge, and then the door can be quickly removed from the corresponding door frame. In this embodiment, the connecting structure 2 and the hinge cup structure 1 are hinged as one part, and the hinge arm structure 3 is taken as one part. The connecting structure 2 is provided with a first axle pin 24, and the hinge arm structure 3 is provided with a snap member 34. The connecting structure 2 and the hinge arm structure 3 are quickly fixed and disconnected by the snap member 34 and the first axle pin 24, thereby realizing the rapid assembly and disassembly of the cup-shaped concealed hinge, and thereby realizing the rapid installation and disassembly of the door.

In an optional embodiment, first clamping blocks 232 are respectively provided on both sides of the slide groove. The first clamping blocks 232 are respectively located on the inner wall of the slide groove. Correspondingly, first engaging recesses 316 are provided on both sides of the hinge arm structure 3. The first engaging recesses 316 are respectively located on both sides of the hinge arm structure 3, and the opening direction faces the hinge cup structure 1; wherein, the first clamping block 232 is fixedly connected with the first engaging recess 316. In this optional embodiment, by fixing the first clamping block 232 with the first engaging recess 316, the connection structure 2 and the hinge arm structure 3 can be further fixed, thereby increasing the stability and reliability of the cup-shaped concealed hinge.

During the installation process, the user can slightly tilt the strip-shaped installation portion 23 and slide it from left to right onto the hinge arm structure 3 until the first clamping block 232 is clamped with the first clamping notch 316. 24 and the snap member 34 are snapped together and fixed, so the connecting structure 2 can be quickly fixed on the hinge arm structure 3. In some embodiments, the first snapping notch 316 can be in a U-shaped or circular shape, etc.; the first clamping block 232 can be in a cylindrical or rectangular shape, etc. It should be noted that the shapes of the notch and the clamping block are compatible, so that stable snapping can be achieved.

In an optional embodiment, the buckle 34 is hinged to the first fixing plate 31, and includes a buckle body 342 and a double torsion spring 341; wherein: the torsion spring 341 is provided with two torsion spring end feet 3412 and a torsion spring connecting portion 3411, the torsion spring connecting portion 3411 is located in the middle of the double torsion spring 341, and the two torsion spring end feet 3412 are against the bottom surface of the first fixing plate 31; the buckle body 342 is provided with a second groove opening upward, and the bottom of the second groove is provided with a rectangular bayonet 3421 at one end close to the hinge cup structure 1, and the rectangular bayonet 3421 is connected to the torsion spring connecting portion 3411 The connecting portion 3411 is correspondingly arranged for the torsion spring connecting portion 3411 to abut against; a pressing surface 3422 is provided at the bottom of the second groove at the end away from the hinge cup structure 1; second engaging recesses 3423 are respectively provided on both sides of the second groove; correspondingly, first extension portions 315 are respectively provided on both sides of the first groove at the end away from the hinge cup structure 1, and the upper edge of the first extension portion 315 forms an arc-shaped recess 3151 with an opening facing upward; wherein, in the assembled state, the second engaging recess 3423 and the arc-shaped recess 3151 form a fixing hole, and the fixing hole is used to fix the first axle pin 24. By providing the second engaging recess 3423 on the fastener 34, and correspondingly providing the arc-shaped recess 3151 on the first fixing plate 31, a fixing hole is formed by the cooperation between the second engaging recess 3423 and the arc-shaped recess 3151. When the cup-shaped concealed hinge needs to be assembled, the fixing hole is clamped with the first axle pin 24, so that the hinge arm structure 3 and the connecting structure 2 can be quickly assembled and fixed. When the cup-shaped concealed hinge needs to be disassembled, the pressing surface 3422 is pressed, so that the hinge arm structure 3 and the connecting structure 2 can be quickly separated. As shown in FIG. 15, the second engaging recess 3423 is a semicircular opening, and the semicircular opening and the bottom of the arc-shaped recess 3151 can jointly form a hole with a smaller opening (similar to a 3/3 circular hole), and the hole with a smaller opening can limit the separation of the first axle pin 24.

In an optional embodiment, the hinge arm structure 3 further includes: a second shaft pin 38, the second shaft pin 38 is sleeved in the double torsion spring 341; correspondingly, the two sides of the second groove are respectively provided with a first pin hole 3424 at one end close to the hinge cup structure 1; correspondingly, the first fixing plate is provided with a second pin hole 317; wherein the first pin hole 3424 and the second pin hole 317 are located in corresponding positions for the second shaft pin 38 to pass through. By passing the second shaft pin 38 through the first pin hole 3424 and the second pin hole 317, the buckle 34 can be quickly fixedly connected to the first fixing plate 31.

As shown in FIG. 16 and FIG. 19 , the pressing surface 3422 is provided for the installer to press. The double torsion spring 341 is sleeved on the second shaft pin 38. The second shaft pin 38, the first pin hole 3424, the second pin hole 317 and the main body of the double torsion spring 341 are coaxial. When the first shaft pin 24 contacts the buckle 34 and is pressed down, the buckle 34 is subjected to the extrusion force, which causes the buckle 34 to rotate clockwise around the second shaft pin 38, and the first shaft pin 24 continues to move downward and reaches a predetermined position, that is, falls into the bottom of the arc-shaped bayonet 3151 of the first fixing plate. At this time, under the reaction force of the double torsion spring 341, the buckle 34 rotates counterclockwise around the second shaft pin 38 to return to the initial position or a position close to the initial position, and the first shaft pin 24 is just clamped into the fixing hole formed by the second clamping recess 3423 and the arc-shaped bayonet 3151. Of course, the installer can also press the buckle 34 to make the buckle 34 rotate clockwise around the second shaft pin 38, so that the first shaft pin 24 reaches the arc-shaped bayonet 3151. After the installer releases the buckle 34, under the reaction force of the double torsion spring 341, the buckle 34 rotates counterclockwise around the second shaft pin 38 to return to the initial position or a position close to the initial position, and the first shaft pin 24 can be just stuck in the fixing hole. The same is true for disassembly.

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 directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are 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 devices or elements referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as construing the present application. Limitation of the scope of protection of the 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 figure is inverted, the device described as "above other devices or structures" or "on top of 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..." 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, numerical expressions and numerical values of the parts and steps set forth 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 accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

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 assembly and disassembly, characterized in that it comprises: a hinge cup structure (1), a connecting structure, and a hinge arm structure;

Wherein, the connection structure comprises:

Connecting part;

A hinge portion, fixedly connected to the first end of the connection portion, and used for hinge connection with the hinge cup structure;

A strip-shaped mounting portion, fixedly connected to the second end of the connecting portion, wherein the strip-shaped mounting portion is provided with a slide groove with a notch facing downward; wherein 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 connecting portion;

Wherein, the hinge arm structure includes a snap-fit member, which is located at an end of the hinge arm structure away from the connecting structure;

Among them, in the assembled state, the hinge arm structure is inserted into the slide groove, the slot of the strip mounting portion is slid to the snap member, and is fixedly connected to the snap member, so that the connection structure is fixedly connected to the hinge arm structure; in the disassembled state, the slot and the snap member are disengaged, so that the connection structure is disengaged from the hinge arm structure.
The American damping hinge capable of rapid disassembly and assembly according to claim 1 is characterized in that:

The two sides of the chute are respectively provided with:

First clamping blocks are respectively located on the inner walls of the slide grooves;

First engaging recesses are respectively arranged at outer edges of both sides of the slide slot and open downward;

Correspondingly, the two sides of the hinge arm structure are provided with:

The second clamping blocks are respectively located on the outer walls of both sides of the hinge arm structure;

The second engaging recesses are respectively located on two sides of the hinge arm structure, and the opening direction faces the hinge cup structure;

Wherein, the first clamping block is fixedly connected to the second clamping recess, and the second clamping block is fixedly connected to the first clamping recess.
The American damping hinge capable of rapid disassembly and assembly according to claim 1, characterized in that the hinge arm structure further comprises:

A first fixing plate, used to fix the strip-shaped mounting portion, the first fixing plate being provided with a first groove opening downward;

A second fixing plate is slidably located in the first groove along a first direction;

The base is slidably located below the second fixing plate along the second direction, and the first direction is perpendicular to the second direction.
The American damping hinge capable of rapid disassembly and assembly according to claim 3 is characterized in that:

The first fixing plate is provided with a first first through hole and a first second through hole;

The second fixing plate is provided with a second first through hole, a second second through hole, and a second third through hole;

The base is provided with a third first through hole and a third third through hole;

Wherein, the first through hole, the second through hole, and the third through hole are located in corresponding positions for self-tapping screws to pass through;

The first second through hole and the second second through hole are located in corresponding positions for the first eccentric screw to pass through; the first second through hole is a waist-shaped hole for accommodating the nut of the first eccentric screw; the second second through hole is for accommodating the screw rod of the first eccentric screw;

The second through hole and the third through hole are in corresponding positions for allowing the second eccentric screw to pass through; the second through hole is another waist-shaped hole for accommodating the nut of the second eccentric screw; the third through hole is for accommodating the screw rod of the first eccentric screw.
The American damping hinge capable of rapid disassembly and assembly according to claim 3 is characterized in that:

The first fixing plate is provided with a circular hole;

The second fixing plate is provided with a U-shaped hole;

The strip-shaped mounting portion is provided with a through hole;

The circular hole, the U-shaped hole and the through hole are positioned correspondingly for the passage of the adjusting screw, and the inner edge of the U-shaped hole is slidably engaged with the groove around the adjusting screw.
The American damping hinge capable of rapid disassembly and assembly according to claim 3, characterized in that the buckle comprises:

A double torsion spring, provided with two torsion spring end legs and a torsion spring connecting portion, wherein the torsion spring connecting portion is located in the middle of the double torsion spring and abuts against the bottom surface of the first fixing plate;

A hook, wherein a grab hook is provided above the hook, and the grab hook is used to hook the card slot;

The hook is provided with a pressing portion and a torsion spring abutting portion; wherein the pressing portion is fixed on one side of the torsion spring abutting portion; a pressing surface is provided on a side of the pressing portion facing away from the double torsion spring, and a locking protrusion is provided on a side of the pressing portion facing the double torsion spring, wherein the locking protrusion is used to fix the hook, and the locking protrusion has an arc-shaped surface adapted to the coils of the double torsion spring; the torsion spring abutting portion is provided with a first U-shaped bayonet, wherein the first U-shaped bayonet is arranged corresponding to the two torsion spring end feet for the two torsion spring end feet to abut against.
The American damping hinge capable of rapid disassembly and assembly according to claim 6 is characterized in that:

The hinge arm structure further comprises: a second shaft pin, wherein the second shaft pin is sleeved in the double torsion spring;

Correspondingly, the hook is provided with first lugs on both sides, and the first lugs are provided with first pin holes; the glue is provided with second lugs on both sides, and the second lugs are provided with second pin holes;

Correspondingly, the first fixing plate is provided with a third pin hole;

The first pin hole, the second pin hole and the third pin hole are located in corresponding positions so as to allow the second shaft pin to pass through.
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 fourth through hole, a boss, and a fifth through hole in sequence; the outer side of the groove is concave to form a receiving space corresponding to the boss;

The torsion spring comprises a torsion spring body and a first end and a second end extending from the torsion spring body; the torsion spring body is located in the receiving space; the first end and the second end of the torsion spring both extend out of the receiving space; the first end of the torsion spring is provided with a bent extension portion, and the bent extension portion passes through the fourth through hole and extends into the groove; the second end of the torsion spring passes through the fifth through hole and abuts against two sides of the hinge portion;

Wherein, when the angle between the hinge cup structure and the connection structure is within a first range, the second end of the torsion spring 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, characterized in that the hinge cup structure further comprises:

A hinge cup body, wherein the hinge cup body is provided with a groove;

A damper is located in the groove; one end of the damper faces the inner wall of the groove, and the other end faces 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 9, characterized in that the hinge cup structure further comprises:

A fixing part, which is arranged above the groove, and the shape of the fixing part is adapted to the shape of the groove, and is used to limit the damper from being separated from the groove; a bayonet is provided on one side of the fixing part;

A switch part is slidably mounted on the bayonet and is provided with a downward convex column;

Correspondingly, a limiting column is also provided on one side of the damper;

When the switch part slides to the first position, the convex column contacts the limiting column, and when the switch part slides to the second position, the convex column separates from the limiting column.
A cup-shaped concealed hinge that can be quickly disassembled and assembled, characterized in that it includes a hinge cup structure, a connecting structure, and a hinge arm structure;

Wherein, the connection structure comprises:

Connecting part;

A hinge portion, fixedly connected to the first end of the connection portion, and used for hinge connection with the hinge cup structure;

A strip-shaped mounting portion, fixedly connected to the second end of the connecting portion, the strip-shaped mounting portion being provided with a sliding groove with a notch downward;

A first axle pin fixedly straddles an end of the slide slot away from the connecting portion;

Wherein, the hinge arm structure includes a snap-fit member, which is located at an end of the hinge arm structure away from the connecting structure;

In which, in the assembled state, the hinge arm structure is inserted into the slide groove, the first axle pin is slid to the latch and fixedly connected to the latch, so that the connecting structure is fixedly connected to the hinge arm structure; in the disassembled state, the first axle pin and the latch are disengaged, so that the connecting structure is disengaged from the hinge arm structure.
The quickly detachable cup-shaped concealed hinge according to claim 11 is characterized in that:

The two sides of the chute are respectively provided with:

First clamping blocks are respectively located on the inner walls of the slide grooves;

Correspondingly, the two sides of the hinge arm structure are provided with:

First engaging recesses are respectively located on two sides of the hinge arm structure, and the opening direction faces the hinge cup structure;

Wherein, the first clamping block is fixedly connected with the first clamping notch.
The quickly detachable cup-shaped concealed hinge according to claim 11, characterized in that the hinge arm structure further comprises:

A first fixing plate, used to fix the strip-shaped mounting portion, the first fixing plate being provided with a first groove opening downward;

A second fixing plate is slidably located in the first groove along a first direction;

The base is slidably located below the second fixing plate along the second direction, and the first direction is perpendicular to the second direction.
The quickly detachable cup-shaped concealed hinge according to claim 13 is characterized in that:

The first fixing plate is provided with a first first through hole and a first second through hole;

The second fixing plate is provided with a second first through hole, a second second through hole, and a second third through hole;

The base is provided with a third first through hole and a third third through hole;

Wherein, the first through hole, the second through hole, and the third through hole are located in corresponding positions for self-tapping screws to pass through;

The first second through hole and the second second through hole are located in corresponding positions for the first eccentric screw to pass through; the first second through hole is a waist-shaped hole for accommodating the nut of the first eccentric screw; the second second through hole is for accommodating the screw rod of the first eccentric screw;

The second through hole and the third through hole are in corresponding positions for allowing the second eccentric screw to pass through; the second through hole is another waist-shaped hole for accommodating the nut of the second eccentric screw; the third through hole is for accommodating the screw rod of the first eccentric screw.
The quickly detachable cup-shaped concealed hinge according to claim 13 is characterized in that:

The first fixing plate is provided with a circular hole;

The second fixing plate is provided with a U-shaped hole;

The strip-shaped mounting portion is provided with a through hole;

The circular hole, the U-shaped hole and the through hole are positioned correspondingly for the passage of the adjusting screw, and the inner edge of the U-shaped hole is slidably engaged with the groove around the adjusting screw.
The quickly detachable cup-shaped concealed hinge according to claim 13 is characterized in that:

The buckle is hinged to the first fixing plate and comprises a buckle body and a double torsion spring; wherein:

The torsion spring is provided with two torsion spring end legs and a torsion spring connecting portion, the torsion spring connecting portion is located in the middle of the double torsion spring, and the two torsion spring end legs are against the bottom surface of the first fixing plate;

The main body of the clip is provided with a second groove opening upward, the bottom of the second groove is provided with a rectangular bayonet at one end close to the hinge cup structure, the rectangular bayonet is arranged corresponding to the torsion spring connecting part, and is used for the torsion spring connecting part to abut against; the bottom of the second groove is provided with a pressing surface at one end away from the hinge cup structure; and second engaging recesses are respectively provided on both sides of the second groove;

Correspondingly, first extension parts are respectively provided on both sides of the first groove at one end away from the hinge cup structure, and the upper edge of the first extension part forms an arc-shaped bayonet with an opening facing upward;

Wherein, in the assembled state, the second engaging recess and the arc-shaped bayonet form a fixing hole, and the fixing hole is used to fix the first shaft pin.
The quickly detachable cup-shaped concealed hinge according to claim 16 is characterized in that:

The hinge arm structure further comprises: a second shaft pin, wherein the second shaft pin is sleeved in the double torsion spring;

First pin holes are respectively provided on both sides of the second groove at one end close to the hinge cup structure;

Correspondingly, the first fixing plate is provided with a second pin hole;

The first pin hole and the second pin hole are located in corresponding positions so as to allow the second shaft pin to pass through.
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 fourth through hole, a boss, and a fifth through hole in sequence; the outer side of the groove is concave to form a receiving space corresponding to the boss;

The torsion spring comprises a torsion spring body and a first end and a second end extending from the torsion spring body; the torsion spring body is located in the receiving space; the first end and the second end of the torsion spring both extend out of the receiving space; the first end of the torsion spring is provided with a bent extension portion, and the bent extension portion passes through the fourth through hole and extends into the groove; the second end of the torsion spring passes through the fifth through hole and abuts against two sides of the hinge portion;

Wherein, when the angle between the hinge cup structure and the connection structure is within a first range, the second end of the torsion spring 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 further comprises:

A hinge cup body, wherein the hinge cup body is provided with a groove;

A damper is located in the groove; one end of the damper faces the inner wall of the groove, and the other end faces 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 hinge cup structure also includes:

A fixing part, which is arranged above the groove, and the shape of the fixing part is adapted to the shape of the groove, and is used to limit the damper from being separated from the groove; a bayonet is provided on one side of the fixing part;

A switch part is slidably mounted on the bayonet and is provided with a downward convex column;

Correspondingly, a limiting column is also provided on one side of the damper;

When the switch part slides to the first position, the convex column contacts the limiting column, and when the switch part slides to the second position, the convex column separates from the limiting column.