Buffering hinge device in cup

Abstract

The invention belongs to the technical field of hinges, and relates to an in-cup buffer hinge device which is provided with a locking mechanism, so that a user can flexibly control the state of a buffer power-assisting function of the in-cup buffer hinge device according to actual use requirements, and when the buffer power-assisting function needs to be closed, a push-stop part is shifted by controlling a locking control cover, so that the buffer power-assisting function is closed. When the hinge device is closed, the buffer is automatically locked, when the buffer assisting function needs to be opened, the lock catch can be separated from the locking seat path to relieve the buffer locking state by reversely controlling the locking control cover to stir the pushing and blocking part, the limitation that the buffer assisting effect of a traditional buffer hinge device cannot be adjusted is effectively solved, and meanwhile the buffer assisting function is achieved. The buffer is laterally arranged in the buffer placement area on the outer side of the hinge cup, the problem that the overall width of the hinge is increased due to a traditional built-in damper is solved, the structural size of the device is reduced, and the appearance is optimized.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of hinges, and particularly relates to a cup-in buffer hinge device. BACKGROUND

[0002] The cup-in buffer hinge device is widely used in the field of furniture such as cabinets and wardrobes due to its stable structure and strong load-bearing capacity. In order to improve the use experience, modern furniture generally requires the hinge to have a buffer function to achieve a quiet and stable closing effect and reduce impact loss. At present, most of the mainstream cup-in buffer hinge devices on the market adopt a structure with an internal buffer. The cup-in buffer hinge device with an internal buffer refers to the buffer being arranged in the hinge cup or the hinge seat. However, the buffer assist effect of these products is usually fixed and cannot be opened or closed according to the user's use demand, and the cup-in buffer hinge device with an internal buffer generally has a large width, resulting in a large design size and unattractive appearance of the cup-in buffer hinge device. SUMMARY

[0003] The purpose of the application is to overcome the problem that the existing cup-in buffer hinge device cannot open or close the buffer assist function according to the user's use demand, and to provide a cup-in buffer hinge device with an openable or closable buffer assist function.

[0004] In order to achieve the above purpose, the application adopts the following technical scheme:

[0005] The cup-in buffer hinge device comprises a hinge cup, a buffer, a hinge seat and a locking mechanism.

[0006] The hinge cup comprises a cup groove body and a connecting edge extending to both sides at the upper end of the cup groove body. The cup groove body is provided with a cup cavity with an upper side and a rear end opening. One side of the cup cavity is provided with a circular arc guide groove penetrating the outer side. The cup groove body is provided with a buffer arrangement area on one side of the circular arc guide groove.

[0007] The buffer is installed in the buffer arrangement area on the side of the cup groove body. The output rod of the buffer is arranged and fixed. The circular arc guide groove is located at the rear side of the buffer cylinder. The buffer cylinder is provided with a locking seat on the upper side.

[0008] The hinge seat is rotatably connected to the cup cavity of the hinge cup through a connecting rod assembly on one side. The connecting rod assembly is provided with a push rod extending out of the outer side through the circular arc guide groove. The push rod is used to cooperate with the rear side of the buffer to provide assist force when the hinge device is relatively opened and provide buffer effect when the hinge device is relatively closed.

[0009] The locking mechanism comprises a locking frame, a lock, a locking control cover and a locking avoiding hole of a connecting edge on one side of the circular arc guide groove, the locking frame is arranged in the locking avoiding hole, the lock is arranged on the side of the cup groove body through a rotating shaft, the lock comprises a push block on the upper part and a lock column on the lower part, a guide inclined surface is arranged on the bottom rear side of the lock column, the locking control cover is arranged on the upper side of the locking frame, the locking control cover is provided with a control part extending to the side of the push block through the locking avoiding hole, the push block is driven by controlling the locking control cover, the lock column is obliquely inserted into the moving path of the locking seat, so that when the hinge device is relatively closed to the position, the lock column is guided and clamped into the front side of the lock column through the guide surface, the buffer is locked, the buffer and the assist function are realized, the push block is driven by reversing the locking control cover, the lock column is separated from the moving path of the locking seat, so that the buffer is unlocked, and the buffer and the assist function are realized.

[0010] Compared with the prior art, the cup-in buffer hinge device can flexibly control the buffer assist function state of the cup-in buffer hinge device according to actual use requirements, the buffer is automatically locked when the hinge device is closed by controlling the locking control cover to drive the push block when the buffer assist function needs to be closed, the lock is separated from the path of the locking seat to release the locking state of the buffer by reversing the locking control cover to drive the push block when the buffer assist function needs to be opened, the limitation that the buffer assist effect of the traditional buffer hinge device cannot be adjusted is effectively solved, the buffer is arranged on the outside of the hinge cup, the problem that the overall width of the hinge is increased due to the traditional built-in damper is avoided, the structure size of the device is reduced, the appearance is optimized, the assist and buffer during opening and closing are realized by cooperation of the push rod and the rear side of the buffer, the locking mechanism directly drives the lock through the locking avoiding hole of the locking control cover, the buffer is automatically locked when the hinge is closed to the position by cooperation of the guide inclined surface and the locking seat, the operation is intuitive and simple, the overall structure is compact and reasonable, the space utilization and the appearance are significantly improved on the basis of ensuring stable and reliable buffer performance.

[0011] Further, the locking frame is provided with an elastic abutting piece extending downward on the side close to the output rod of the buffer, the lock is arranged on the rear side of the elastic abutting piece, the lock column is separated from the moving path of the locking seat and abuts against the elastic abutting piece when the push block is driven by reversing the locking control cover, the elastic abutting piece is arranged on the locking frame to provide elastic auxiliary force for the reverse control of the lock column, the rigid collision or friction jamming with the surrounding structure during the reset of the lock column in the locking state is effectively avoided, the lock column can accurately and smoothly return to the locking state position every time, and the use reliability of the overall mechanism is improved.

[0012] Further, the elastic abutting piece is a circular arc structure extending to one side of the lock catch; by such arrangement, the elastic abutting piece has simple structure and provides good elastic reset effect.

[0013] Further, the inner side of the locking frame is provided with a limiting groove matched with the moving direction of the locking control cover, one side of the operating part is provided with a limiting block matched with the limiting groove, the limiting block moving to one side of the limiting groove corresponds to the locking state of the buffer, and the limiting block moving to the other side of the limiting groove corresponds to the unlocking state of the buffer; by such arrangement, the sliding matching design of the limiting groove and the limiting block provides clear and stable mechanical guidance and stroke limiting for the reciprocating movement of the locking control cover, so that the user can obtain clear hand feeling and in-place feedback when switching the buffer function state, effectively preventing the problem of unclear locking mechanism state caused by insufficient or excessive operation, thereby ensuring the accuracy and reliability of the locking and unlocking actions, and improving the operation experience of the user.

[0014] Further, the inner side of the locking frame is provided with a elastic catch extending to the operating part, the bottom of the locking control cover is provided with a limiting buckle matched with the elastic catch, the limiting buckle is buckled into one side of the elastic catch when the limiting block moves to one side of the limiting groove, and the limiting buckle is buckled into the other side of the elastic catch when the limiting block moves to the other side of the limiting groove; by such arrangement, the matching structure of the elastic catch and the limiting buckle is additionally provided, which provides clear tactile positioning and self-locking holding force for the locking control cover at the two terminal positions of the locking state and the unlocking state on the basis of the original mechanical guidance, effectively preventing the cover from being spontaneously displaced due to vibration or accidental touch in daily use, thereby ensuring the stability and certainty of the buffer function state, and further improving the operation accuracy and user experience.

[0015] Further, the outer periphery of the locking frame is provided with a plurality of fixed buckles, and the locking frame is arranged and fixed by being buckled on the bottom edge of the locking avoiding hole through the fixed buckles; by such arrangement, the mounting mode of the locking frame is simple and facilitates assembly.

[0016] Further, the push block and the push block are arranged at an obtuse angle; by such arrangement, the push block and the lock post of the lock catch are designed to be arranged at an obtuse angle, which optimizes the force transmission path, so that when the locking control cover drives the push block, the force can be more effectively converted into a rotary torque for driving the lock post to tilt into or exit the locking path, not only reducing the required force for operation and making the operation more labor-saving and smooth, but also enhancing the stability and response speed of the movement trajectory of the lock post, and improving the sensitivity and reliability of the whole locking mechanism.

[0017] Further, the buffer mounting rack is arranged in the buffer installation area, and the buffer mounting rack is provided with an accommodation cavity with an inner opening, and a clamping rod is arranged on the front side of the accommodation cavity, and the clamping rod is provided with a clamping hole with an inner opening, and the output rod of the buffer is clamped into the clamping hole. In this way, the buffer mounting rack with the accommodation cavity and the clamping rod is additionally arranged, so that a special mounting base which is independent, stable and easy to assemble is provided for the buffer. The clamping hole is designed to enable the output rod of the buffer to be quickly and accurately clamped and fixed. This not only significantly simplifies the assembly process and improves the production efficiency, but also ensures the stability and consistency of the installation position of the buffer in long-term use, thereby ensuring the reliable play of the buffer and assistance functions.

[0018] Further, the cup groove body side is provided with a clamping groove on the front side and a plug-in hole on the rear side, the buffer mounting rack is provided with a clamping hook corresponding to the clamping groove and a plug-in part corresponding to the plug-in hole, and the rear part of the buffer mounting rack is inserted into the plug-in groove through the plug-in part, and the front side of the buffer mounting rack is buckled in the clamping groove through the clamping hook to realize the installation and fixation of the buffer mounting rack. In this way, the clamping groove, the plug-in hole and the corresponding clamping hook and plug-in part are cooperatively designed to realize the quick, accurate positioning and firm fixation of the buffer mounting rack on the cup groove body side. The “rear insertion and front buckling” installation mode is easy to operate and reliable in connection, effectively prevents the mounting rack from loosening or shifting under stress, ensures the stability of the overall installation structure of the buffer, and provides a solid foundation for the long-term smooth operation of the hinge.

[0019] Further, the connecting hole is arranged on the outer side of the buffer. In this way, the connecting hole is arranged on the outer side of the buffer, effectively utilizes the space on the outer side of the hinge cup connecting side, avoids the interference between the connecting hole and the inner buffer and the installation structure of the buffer in space, makes the insertion and tightening operation of the connecting screw more convenient when the hinge is installed on the cabinet, optimizes the assembly process, and ensures that the strength of the connecting structure and the realization of the buffer function do not affect each other.

[0020] Further, the connecting rod assembly includes a first connecting rod and a second connecting rod which are rotatably connected to the hinge cup and the hinge seat at two ends respectively, a four-connecting-rod mechanism is formed between the hinge cup, the first connecting rod, the hinge seat and the second connecting rod, and the push rod is arranged on the first connecting rod. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 Schematic diagram of the opening state of the cup-in-buffer hinge device Figure 1 .

[0022] Figure 2 Schematic diagram of the opening state of the cup-in-buffer hinge device Figure 2 .

[0023] Figure 3Schematic diagram of the cup-in-buffer hinge device in closed state and the buffer in unlocked state.

[0024] Figure 4 Schematic diagram of the cup-in-buffer hinge device in closed state and the buffer in unlocked state. Figure 3 Schematic diagram of the cup-in-buffer hinge device in closed state and the buffer in unlocked state.

[0025] Figure 5 Schematic diagram of the cup-in-buffer hinge device in closed state and the buffer in unlocked state.

[0026] Figure 6 Schematic diagram of the cup-in-buffer hinge device in closed state and the buffer in unlocked state. Figure 1 .

[0027] Figure 7 Schematic diagram of the cup-in-buffer hinge device in closed state and the buffer in unlocked state. Figure 2 .

[0028] Label explanation: hinge cup 1, buffer 2, hinge seat 3, locking mechanism 4, cup groove body 11, connecting edge 12, cup cavity 13, circular arc guide groove 14, buffer placement area 15, output rod 21, locking seat 22, push rod 31, first connecting rod 32, second connecting rod 33, locking frame 41, lock 42, locking control cover 43, locking avoidance hole 44, push block 421, lock column 422, guide slope 423, actuating part 431, elastic abutting part 411, limiting groove 412, limiting block 432, elastic buckle 413, limiting buckle 439, fixed clasp 434, buffer mounting frame 151, accommodating cavity 152, clamping rod 153, clamping hole 154, limiting block 155, clamping groove 113, insertion hole 114, clamping buckle 156, insertion part 157, connecting hole 121, rotating shaft 420. DETAILED DESCRIPTION

[0029] The specific embodiments of the present application are described below with reference to the accompanying drawings. In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0030] Referring to Figures 1 to 7 , the cup-in-buffer hinge device of the present application comprises a hinge cup 1, a buffer 2, a hinge seat 3 and a locking mechanism 4.

[0031] The hinge cup 1 comprises a cup groove body 11 and a connecting edge 12 extending to both sides at the upper end of the cup groove body 11. The cup groove body 11 is provided with a cup cavity 13 with an upper side and a rear end opening. One side of the cup cavity 13 is provided with a circular arc guide groove 14 that penetrates the outer side. The cup groove body 11 is provided with a buffer placement area 15 on one side of the circular arc guide groove 14.

[0032] Buffer 2, installed in the buffer setting area 15 of the cup groove body 11 side, the output rod 21 of the buffer 2 is set fixed, the circular arc guide groove 14 is located in the rear side of the buffer 2 cylinder body, the buffer 2 cylinder body upper side is provided with the locking seat 22.

[0033] Hinge seat 3, one side is connected with the cup cavity 13 of the cup hinge 1 through the connecting rod assembly, the connecting rod assembly is provided with the push rod 31 extending out of the outer side through the circular arc guide groove 14, the push rod 31 is used for providing the power assistance when the hinge device is relatively opened and providing the buffering effect when the hinge device is relatively closed.

[0034] Locking mechanism 4, including locking frame 41, lock 42, locking control cover 43 and locking avoidance hole 44 located in the connecting edge 12 of the circular arc guide groove 14, the locking frame 41 is arranged in the locking avoidance hole 44, the lock 42 is arranged in the side of the cup groove body 11 through the rotating shaft 420, the lock 42 includes the push block 421 located in the upper part and the lock column 422 located in the lower part, the bottom rear side of the lock column 422 is provided with the guide inclined surface 423, the locking control cover 43 is installed on the upper side of the locking frame 41, the locking control cover 43 is provided with the operation part 431 extending to the side of the push block 421 through the locking avoidance hole 44, by operating the push block 421 of the locking control cover 43, the lock column 422 can be obliquely inserted into the movement path of the locking seat 22, so that when the hinge device is relatively closed, the push rod 31 pushes the locking seat 22 of the buffer 2 to guide the lock column 422 to be locked, the buffering and power assisting functions of the buffer 2 are realized, by operating the push block 421 of the locking control cover 43 in the opposite direction, the lock column 422 can be separated from the movement path of the locking seat 22, so as to unlock the buffer 2, the buffering and power assisting functions of the buffer 2 are realized.

[0035] Compared with the prior art, the cup-in buffer hinge device of the application, by setting the locking mechanism 4, the user can flexibly control the buffer assist function state of the cup-in buffer hinge device according to the actual use demand, when it is needed to close the buffer assist function, the buffer 2 is automatically locked when the hinge device is closed by operating the locking control cover 43 to drive the push block 421, and when it is needed to open the buffer assist function, the locking catch 42 is separated from the locking seat 22 path to release the locking state of the buffer 2 by reversing the locking control cover 43 to drive the push block 421, effectively solving the limitation of the unadjustable state of the buffer assist effect of the traditional buffer hinge device, at the same time, the buffer 2 is placed on the buffer placement area 15 outside the hinge cup 1, avoiding the problem of the increase of the overall width of the hinge caused by the traditional built-in damper, not only reducing the structure size of the device and optimizing the appearance, but also realizing the assist and buffer when opening and closing by the cooperation of the push rod 31 and the rear side of the buffer 2, the locking mechanism 4 directly drives the locking catch 42 through the locking avoidance hole 44 by the locking control cover 43, and the automatic locking of the buffer 2 is realized by the cooperation of the guide inclined surface 423 and the locking seat 22 when closing in place, the operation is intuitive and simple, the overall structure is compact and reasonable, and the space utilization and the appearance are significantly improved on the basis of ensuring the stable and reliable buffer performance.

[0036] Referring to Figures 1 to 7 In an embodiment, the locking frame 41 is provided with an elastic abutting piece 411 extending downward near the output rod 21 of the buffer 2, and the locking catch 42 is located at the rear side of the elastic abutting piece 411. When the push block 421 of the locking control cover 43 is reversed, the locking column 422 is separated from the movement path of the locking seat 22 and abuts against the elastic abutting piece 411, and the elastic abutting piece 411 is used to provide elastic auxiliary force for the next time the locking column 422 enters the movement path of the locking seat 22. By setting the elastic abutting piece 411 on the locking frame 41, elastic auxiliary force is provided for the reverse control of the locking column 422 to reset, which can effectively avoid rigid collision or friction jamming with the surrounding structure when the locking column 422 resets to the locking state, ensures that it can accurately and smoothly return to the locking state position each time, and improves the use reliability of the overall mechanism.

[0037] Referring to Figures 1 to 7 In an embodiment, the elastic abutting piece 411 is a circular arc structure extending to the side of the locking catch 42. By setting the elastic abutting piece 411 in this way, the structure is simple and has good elastic reset effect.

[0038] Referring to Figures 1 to 7In an embodiment, the inside of the locking frame 41 is provided with a limiting groove 412 matched with the active direction of the locking control cover 43, one side of the operating part 431 is provided with a limiting block 432 matched with the limiting groove 412, the width of the limiting groove 412 is greater than the width of the limiting buckle, and the limiting block 432 moves to one side of the limiting groove 412 corresponding to the locking state of the buffer 2, and the limiting block 432 moves to the other side of the limiting groove 412 corresponding to the unlocking state of the buffer 2. Through such a design, the sliding cooperation of the limiting groove 412 and the limiting block 432 provides clear and stable mechanical guidance and stroke limiting for the reciprocating movement of the locking control cover 43, so that the user can obtain clear hand feeling and in-place feedback when switching the buffer function state, effectively preventing the problem of unclear state of the locking mechanism 4 caused by incomplete or excessive operation, thereby ensuring the accuracy and reliability of the locking and unlocking operation, and improving the operation experience of the user.

[0039] Referring to Figures 1 to 7 In an embodiment, the inside of the locking frame 41 is provided with a limiting groove 412 matched with the active direction of the locking control cover 43, one side of the operating part 431 is provided with a limiting block 432 matched with the limiting groove 412, the width of the limiting groove 412 is greater than the width of the limiting buckle, and the limiting block 432 moves to one side of the limiting groove 412 corresponding to the locking state of the buffer 2, and the limiting block 432 moves to the other side of the limiting groove 412 corresponding to the unlocking state of the buffer 2. Through such a design, the sliding cooperation of the limiting groove 412 and the limiting block 432 provides clear and stable mechanical guidance and stroke limiting for the reciprocating movement of the locking control cover 43, so that the user can obtain clear hand feeling and in-place feedback when switching the buffer function state, effectively preventing the problem of unclear state of the locking mechanism 4 caused by incomplete or excessive operation, thereby ensuring the accuracy and reliability of the locking and unlocking operation, and improving the operation experience of the user.

[0040] Referring to Figures 1 to 7 In an embodiment, the bottom outer periphery of the locking frame 41 is provided with a plurality of fixed buckles 434, and the locking frame 41 is fixed and arranged by being buckled from the upper side to the bottom edge of the locking avoiding hole 44 through the fixed buckles 434. Through such a design, the locking frame 41 is simple in mounting method and convenient to assemble.

[0041] Referring to Figures 1 to 7In an embodiment, the push portion 421 is arranged at an obtuse angle with the push portion 421; by arranging the push portion 421 of the lock catch 42 and the lock column 422 at an obtuse angle, the force transmission path is optimized, so that when the locking operation cover 43 pushes the push portion 421, the force can be effectively converted into a rotary torque to drive the lock column 422 to tilt into or out of the locking path, not only reducing the force required for operation and making the operation more labor-saving and smooth, but also enhancing the stability and response speed of the movement trajectory of the lock column 422, and improving the sensitivity and reliability of the locking mechanism 4 as a whole.

[0042] Referring to Figures 1 to 7 In an embodiment, a buffer mounting bracket 151 is further arranged in the buffer installation area 15, the buffer mounting bracket 151 is provided with an internally open accommodating cavity 152, the front side of the accommodating cavity 152 is provided with a clamping rod 153, the clamping rod 153 is provided with an internally open clamping hole 154, the output rod 21 of the buffer 2 is clamped into the clamping hole 154, and the bottom of the accommodating cavity 152 is provided with a limiting stop 155, and the bottom of the buffer 2 abuts against the inside of the limiting stop 155; by such arrangement, the buffer mounting bracket 151 with the accommodating cavity 152 and the clamping rod 153 is additionally provided, thereby providing a separate, stable and easy-to-assemble special mounting base for the buffer 2, and the clamping hole 154 is designed to enable the output rod 21 of the buffer 2 to be quickly and accurately clamped and fixed, which not only significantly simplifies the assembly process and improves the production efficiency, but also ensures the stability and consistency of the installation position of the buffer 2 in long-term use, thereby ensuring the reliable play of the buffering and assisting functions.

[0043] Referring to Figures 1 to 7 In an embodiment, the side of the cup groove body 11 is provided with a clamping groove (not shown) at the front side and a plug hole 114 at the rear side, the buffer mounting bracket 151 is provided with a clamping hook 156 corresponding to the clamping groove and a plug portion 157 corresponding to the plug hole 114, and the rear part of the buffer mounting bracket 151 is inserted into the plug groove through the plug portion 157, and the front part is buckled in the clamping groove through the clamping hook 156 to realize the installation and fixation of the buffer mounting bracket 151; by such arrangement, the clamping groove, the plug hole 114, and the corresponding clamping hook 156 and plug portion 157 are cooperatively designed, thereby realizing the quick and accurate positioning and firm fixation of the buffer mounting bracket 151 on the side of the cup groove body 11, the installation mode of “rear insertion and front buckling” is easy to operate and reliable in connection, which effectively prevents the mounting bracket from loosening or shifting under stress, ensures the stability of the overall installation structure of the buffer 2, and provides a solid foundation for the long-term stable operation of the hinge.

[0044] Referring to Figures 1 to 7In an embodiment, the connecting edge 12 is provided with a connecting hole 121 located outside the buffer 2. By arranging the connecting hole 121 outside the buffer 2, the space outside the connecting edge 12 of the hinge cup 1 is effectively utilized, the connecting hole 121 is prevented from interfering with the buffer 2 and the mounting structure thereof in space, the insertion and tightening operation of the connecting screw is more convenient when the hinge is mounted to the cabinet, the assembly process is optimized, and meanwhile, the strength of the connecting structure and the realization of the buffering function are not affected.

[0045] Referring to Figures 1 to 7 In an embodiment, the connecting rod assembly includes a first connecting rod 32 and a second connecting rod 33, both ends of which are rotatably connected to the hinge cup 1 and the hinge seat 3, respectively, and the hinge cup 1, the first connecting rod 32, the hinge seat 3 and the second connecting rod constitute a four-connecting-rod mechanism, and the push rod 31 is arranged on the first connecting rod 32.

[0046] According to the disclosure and teaching of the above description, those skilled in the art of the present application can also make changes and modifications to the above embodiments. Therefore, the present application is not limited to the specific embodiments disclosed and described above, and some modifications and changes of the present application should fall within the protection scope of the claims of the present application. In addition, although some specific terms are used in the present specification, these terms are only for convenience of description and do not constitute any limitation on the present application.

Claims

1. A cup-in-buffer hinge device, characterized by, The utility model relates to a hinge cup, a buffer, a hinge seat and a locking mechanism, and relates to a hinge device. The hinge cup comprises a cup groove body and a connecting edge extending to both sides at the upper end of the cup groove body, and the cup groove body is provided with a cup cavity with an upper side and a rear end opening, and one side of the cup cavity is provided with a circular arc guide groove penetrating the outer side, and one side of the circular arc guide groove of the cup groove body is provided with a buffer placement area. The buffer is installed in the buffer placement area of the side of the cup groove body, the output rod of the buffer is fixedly arranged, the circular arc guide groove is located at the rear side of the buffer cylinder, and the upper side of the buffer cylinder is provided with a locking seat. The hinge seat is rotatably connected with the cup cavity of the hinge cup through a connecting rod assembly on one side, the connecting rod assembly is provided with a push rod extending out of the outer side through the circular arc guide groove, and the push rod is used for providing assistance when the hinge device is relatively opened and providing buffering action when the hinge device is relatively closed. The locking mechanism comprises a locking frame, a lock, a locking control cover and a locking avoiding hole of the connecting edge on one side of the circular arc guide groove, the locking frame is arranged in the locking avoiding hole, the lock is arranged on the side of the cup groove body through a rotating shaft, the lock comprises a push block on the upper part and a lock column on the lower part, the bottom rear side of the lock column is provided with a guide inclined surface, the locking control cover is arranged on the upper side of the locking frame, the locking control cover is provided with a control part extending to one side of the push block through the locking avoiding hole, the push block is driven by controlling the locking control cover, the lock column is obliquely inserted into the moving path of the locking seat, the hinge device is relatively closed in place, the push rod pushes the locking seat of the buffer to guide the lock column to be clamped into the front side of the lock column through the guide surface, so that the buffer is locked, the buffering and assistance functions of the buffer are realized, the push block is driven by reversing the locking control cover, the lock column is separated from the moving path of the locking seat, the buffer is unlocked, and the buffering and assistance functions of the buffer are realized.

2. The cup-in-cup cushioned hinge device of claim 1, wherein, The locking frame is provided with an elastic abutting piece extending downward on the side close to the output rod of the buffer, the lock is located on the rear side of the elastic abutting piece, the lock column is separated from the moving path of the locking seat and abuts against the elastic abutting piece when the push block of the locking control cover is reversely controlled.

3. The cup-in-cup cushioned hinge device of claim 2, wherein, The elastic abutting piece is a circular arc structure extending to the side of the lock.

4. The cup-in-cup cushioned hinge device of claim 1, wherein, The inner side of the locking frame is provided with a limiting groove matched with the moving direction of the locking control cover, one side of the control part is provided with a limiting block matched with the limiting groove, the limiting block moves to one side of the limiting groove, and the buffer is locked, and the limiting block moves to the other side of the limiting groove, and the buffer is unlocked.

5. The cup-in-cup cushioned hinge device of claim 4, wherein, The inner side of the locking frame is provided with a spring buckle extending to the control part, the bottom of the locking control cover is provided with a limiting buckle matched with the spring buckle, the limiting buckle is clamped into one side of the spring buckle when the limiting block moves to one side of the limiting groove, and the limiting buckle is clamped into the other side of the spring buckle when the limiting block moves to the other side of the limiting groove.

6. The cup-in-cup cushioned hinge device of claim 1, wherein, The outer periphery of the locking frame is provided with a plurality of fixed buckles, and the locking frame is arranged and fixed by being buckled on the bottom edge of the locking avoiding hole through the fixed buckles.

7. The cup-in-cup cushion hinged link device of claim 1, wherein, The push block and the push block are arranged at an obtuse angle.

8. The cup-in-cup cushion hinged linkage apparatus of claim 1, wherein, Further comprising a buffer mounting frame arranged in the buffer setting area, the buffer mounting frame is provided with an accommodation cavity with an inner opening, the front side of the accommodation cavity is provided with a clamping rod, the clamping rod is provided with a clamping hole with an inner opening, and the output rod of the buffer is clamped into the clamping hole.

9. The cup-in-cup cushion hinging device of claim 1, wherein, The connection is provided with a connecting hole, and the connecting hole is located on the outer side of the buffer.

10. The cup-in-cup cushion hinged linkage apparatus of claim 1, wherein, The connecting rod assembly comprises a first connecting rod and a second connecting rod which are respectively rotationally connected with a hinge cup and a hinge seat at two ends, a four-connecting-rod mechanism is formed between the hinge cup, the first connecting rod, the hinge seat and the second connecting rod, and the push rod is arranged on the first connecting rod.

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