Damping hinge in cup

Abstract

The invention belongs to the technical field of damping hinges, and particularly relates to an in-cup damping hinge. According to the in-cup damping hinge, the buffer assembly is rotationally arranged on the inner side of the first hinge seat, the buffer ejection block matched with the buffer guide face of the second hinge seat is arranged on the outer side of the buffer cylinder shell of the buffer assembly, and the guide part matched with the spiral guide groove in the outer side of the buffer cylinder shell is arranged on the inner side of the first hinge seat; in the relative closing process of the first hinge seat and the second hinge seat, the buffer cylinder shell abuts against the buffer guide face through the buffer ejector block, and through the rotation guide effect between the guide part and the spiral guide groove and the combination of the limited movement of one end of the movable rod, the buffer cylinder shell can be driven to rotate through the linkage effect of the buffer ejector block; the internal piston piece is linearly pushed in a spiral rotating mode to conduct buffering compression and linearly move towards the side opposite to the piston piece, buffering closing of the first hinge base and the second hinge base is achieved, and the problems that the buffering function is uneven in speed, clamping stagnation in the buffering process, unsmooth and the like are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of damping hinges, and in particular relates to an in-cup damping hinge. Background Art

[0002] In the current buffer hinges, the buffer is usually arranged in the hinge arm, and a connection relationship is established between the hinge four-bar linkage and the buffer through a series of connecting parts. When the hinge performs a closing movement under the action of external force, the motion trajectory of the four-bar linkage is transmitted to the buffer through the connecting parts, thereby stretching or compressing the internal piston mechanism of the buffer to perform linear motion, and the piston achieves a buffering effect under the action of hydraulic oil. This type of buffer structure has the problem of conversion connection through complex connecting parts, and the motion trajectory transmission of the entire closing process is distorted, resulting in the buffering function of the hinge having problems such as uneven speed, stuck buffering process, poor and non-smooth buffering experience, and impact on door panels. Summary of the invention

[0003] The purpose of the present invention is to overcome the problems of uneven buffering function speed, stuck buffering process, and inflexibility in the existing four-link buffer hinge, and to provide an in-cup damping hinge with uniform buffering function speed and flexible buffering.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions.

[0005] A cup damping hinge comprises a first hinge seat and a second hinge seat; the first hinge seat is provided with a placement cavity located on the inner side and a buffer assembly placed in the placement cavity, the placement cavity is provided with an avoidance hole connected to the outside, the buffer assembly comprises a buffer cylinder shell and a movable rod partially buffered and placed in the buffer cylinder shell, two ends of the buffer assembly abut against the two end side walls of the placement cavity, the outer side of the buffer cylinder shell is provided with a spiral guide groove arranged along the length direction, the first hinge seat is provided with a guide part cooperating with the spiral guide groove, and the buffer cylinder shell is provided with a buffer top block extending to the outside through the avoidance hole; the second hinge seat is movably connected to the first hinge seat through a connecting rod structure, the first hinge seat and the second hinge seat can be relatively closed or opened through the action of the connecting rod structure, the second hinge seat is provided with a buffer guide surface corresponding to the buffer top block, and during the relative closing process of the first hinge seat and the second hinge seat, the buffer cylinder shell abuts on the buffer guide surface through the buffer top block and rotates and guides through the guide part and the spiral guide groove, so that the buffer cylinder shell and the movable rod are buffered and compressed, so that the first hinge seat and the second hinge seat form a buffer closure.

[0006] Compared with the prior art, the cup-shaped damping hinge of the present invention is provided with a buffer assembly rotatably arranged on the inner side of the first hinge seat, and a buffer top block matched with the buffer guide surface of the second hinge seat and a guide part matched with the spiral guide groove on the outer side of the buffer cylinder shell are provided on the inner side of the first hinge seat. When the first hinge seat and the second hinge seat are relatively closed, the buffer cylinder shell abuts against the buffer guide surface through the buffer top block and rotates and guides between the guide part and the spiral guide groove. Combined with the restricted movement of one end of the movable rod, the buffer cylinder shell can push the internal piston part linearly in a spiral rotation manner to perform buffering compression and move linearly to the side relative to the piston part through the linkage action of the buffer top block, so as to realize the buffering closure of the first hinge seat and the second hinge seat. Through the combined use of geometric structures, the rotation method is cleverly used to transform and push the outer buffer cylinder shell of the buffer assembly to move linearly to one side to realize the buffering function. The mechanical transmission of the buffering process is simple and direct, which avoids the problems of uneven speed, stagnation and inflexibility of the buffering process. The buffering effect is comfortable and soft, which greatly improves the buffering experience of the hinge and has good use effect.

[0007] Furthermore, the first hinge seat includes a hinge cup and a cover plate, the bottom of the placement cavity is open and is arranged on the cover plate, the guide portion is located on the hinge cup, and the guide portion is arranged relative to the placement cavity; through such an arrangement, the buffer assembly is assembled in the placement cavity of the hinge cup and then fixed by the cover plate, and the assembly and connection method is simple.

[0008] Furthermore, a first limiting portion is provided on the inner side of the spiral guide groove, and a second limiting portion is provided on the side of the guide portion. When the first hinged seat is relatively opened to a preset position, the first limiting portion and the second limiting portion cooperate in limiting. Through such an arrangement, after the first hinged seat is opened to the maximum angle, excessive opening of the first hinged seat relative to the second hinged seat can be avoided to avoid damage to the connecting rod mechanism, thereby ensuring the reliability of product use.

[0009] Furthermore, the buffer assembly also includes a return spring and a piston member arranged at the inner end of the movable rod, the piston member divides the inner cavity of the buffer cylinder shell into a first cavity and a second cavity, the return spring is arranged in the first cavity and acts on the piston member, and is used to provide an elastic driving force for the movable rod to extend outward and to provide a buffering effect when the movable rod is retracted, and the piston member is provided with an oil flow channel respectively connecting the first cavity and the second cavity, and the oil flow channel is used to supply oil to flow between the first cavity and the second cavity when the piston member moves in the buffer cylinder shell, thereby realizing the buffering effect when the buffer assembly is compressed or extended; through such an arrangement, the movable rod of the buffer assembly realizes deceleration buffering through hydraulic flow each time it is extended or compressed, and the buffer assembly has a good buffering damping effect.

[0010] Furthermore, a plurality of abutment strips arranged side by side are provided at the bottom of the buffer top block along the radial direction of the buffer cylinder shell, and the buffer top block cooperates with the buffer guide surface through the plurality of abutment strips.

[0011] Furthermore, the connecting rod structure includes a first connecting rod and a second connecting rod, two ends of the first connecting rod are rotatably connected to the first hinge seat and the second hinge seat respectively, and two ends of the second connecting rod are rotatably connected to the first hinge seat and the second hinge seat respectively, and the first hinge seat, the first connecting rod, the second hinge seat and the second connecting rod constitute a four-bar linkage; it also includes a driving torsion spring, which is rotatably connected to the second hinge seat, and the two elastic arms of the driving torsion spring are respectively abutted against the second hinge seat and the second connecting rod, and the driving torsion spring is used to provide an elastic driving force for the first hinge seat and the second hinge seat to a relative closing direction; through such an arrangement, the setting method of the connecting rod structure is simple and the driving effect of the driving torsion spring is good.

[0012] Furthermore, a cup cavity is provided on one side of the hinge cup relative to the second hinge seat, and when the first hinge seat and the second hinge seat are relatively closed, the connecting rod structure is accommodated in the cup cavity; through such an arrangement, when the damping hinge in the cup is relatively closed, the overall structure has a smaller volume and a more compact structure.

[0013] Furthermore, it also includes a locking mechanism, which is used to lock the compression state of the buffer assembly so that the buffer closing function of the buffer assembly is turned off when the first hinge seat and the second hinge seat are relatively closed; through such an arrangement, by setting the locking mechanism, it is convenient for the user to set the damping hinge in the cup to have a buffer damping effect during the closing process according to usage requirements.

[0014] Furthermore, the second articulated seat includes an articulated arm, an adjustment frame and a base, and fixed seats extending outward are respectively provided on both sides of the base, and the base is installed on the inner side of the adjustment frame, and the adjustment frame is installed on the inner side of the articulated arm. The articulated arm is transmission-connected to the connecting rod structure, and the adjustment frame is connected to the inner side of the articulated arm through the adjustment structure. The base and the adjustment frame are slidingly connected through a guide structure, and an elastic reset structure is provided between the base and the adjustment frame, and the elastic reset structure is used to provide an elastic driving force for the base to the side of the first articulated seat; through such an arrangement, when the first articulated seat and the second articulated seat are relatively closed, adaptive adjustments such as displacement can be performed between the adjustment frame and the base to avoid jamming at the connection between the second articulated seat and the cabinet, thereby ensuring the smoothness of opening and closing of the damping hinge in the cup.

[0015] Furthermore, the adjustment structure includes a first adjustment hole and a first connecting hole arranged at the top of the articulated arm, a second adjustment hole and a second connecting hole arranged at the top of the adjustment frame, and a first screw and a second screw; the first screw passes through the first adjustment hole and is connected to the second connecting hole, and the second screw passes through the second adjustment hole and is connected to the first connecting hole; through such an arrangement, the overall length of the second articulated seat can be shortened or extended according to needs by setting the adjustment structure, thereby facilitating product assembly and fixation.

[0016] Furthermore, the guide structure includes an arc-shaped hole provided at the front end of the adjusting frame and a guide shaft provided at the base, the guide shaft can be movably placed in the arc-shaped hole, and a push-out frame is provided at the rear side of the base, and the push-out frame is rotatably connected to the rear end of the adjusting frame through a first rotating shaft; through such an arrangement, the adaptive position adjustment between the adjusting frame and the base is limited within a preset trajectory of the arc-shaped hole, and the relative movement between the adjusting frame and the base is smooth.

[0017] Furthermore, the elastic reset structure includes a first reset torsion spring and a second reset torsion spring, the first reset torsion spring is rotatably connected to the adjusting frame via a second rotating shaft, one end of the first reset torsion spring is clamped in a clamping groove on the inner top wall of the adjusting frame, and the other end thereof abuts against the guide shaft, and one end of the second reset torsion spring abuts against the rear end of the adjusting frame, and the other end thereof abuts against the ejection frame; through such an arrangement, the elastic reset structure is simply arranged, and the elastic reset effect of the driving base is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a top schematic diagram of the damping hinge in the cup in the open state.

[0019] Figure 2 This is a bottom schematic diagram of the damping hinge in the cup in the open state.

[0020] Figure 3 Schematic diagram of the top of the cup with the damping hinge in the closed state.

[0021] Figure 4 Schematic diagram of the damping hinge in the cup closing to a preset position.

[0022] Figure 5 This is an exploded view of the second hinged seat.

[0023] Figure 6 This is a cross-sectional view of the damping hinge inside the cup.

[0024] Figure 7 The explosion of the first articulated seat Figure 1 .

[0025] Figure 8 The explosion of the first articulated seat Figure 2 .

[0026] Fig. 9 A cross-sectional view of the buffer assembly.

[0027] Fig.10 This is a schematic diagram of the unlocked state of the first hinge seat.

[0028] Fig.11 It is a schematic diagram of the first hinge seat in the locked state.

[0029] Description of reference numerals: first hinge seat 1, second hinge seat 2, buffer assembly 3, placement cavity 11, avoidance hole 12, buffer cylinder shell 31, movable rod 32, spiral guide groove 33, guide part 34, buffer top block 35, hinge cup 13, cover plate 14, first limit part 331, second limit part 341, piston member 36 return spring 37, first cavity 311, second cavity 312, abutment spoke 38, connecting rod structure 4, first connecting rod 41, second connecting rod 42, driving torsion spring 43, cup cavity 131, locking mechanism 5, lock groove 51, lock rod 52, slide key 53, slide key hole 54, Sliding cavity 55, positioning block 56, locking position 551, unlocking position 552, hinged arm 21, adjustment frame 22, base 23, fixing seat 24, first adjustment hole 211, first connecting hole 212, second adjustment hole 221, second connecting hole 222, first screw 25, second screw 26, arc hole 271, guide shaft 272, ejection frame 28, first rotating shaft 281, first return torsion spring 291, second return torsion spring 292, mounting seat 10, buffer guide surface 46, card slot 229, second rotating shaft 295, bayonet 139, card block 149, touch surface 351. DETAILED DESCRIPTION

[0030] The specific implementation of the present invention is described below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0031] See also Figures 1 to 11The cup damping hinge of the present invention comprises a first hinge seat 1 and a second hinge seat 2; the first hinge seat 1 is provided with a placement cavity 11 located on the inner side and a buffer assembly 3 placed in the placement cavity 11, the placement cavity 11 is provided with a avoidance hole 12 connected to the outside, the buffer assembly 3 comprises a buffer cylinder shell 31 and a movable rod 32 partially buffered and placed in the buffer cylinder shell 31, both ends of the buffer assembly 3 abut against the side walls at both ends of the placement cavity 11, the outer side of the buffer cylinder shell 31 is provided with a spiral guide groove 33 arranged along the length direction, the first hinge seat 1 is provided with a guide portion 34 matched with the spiral guide groove 33, and the guide portion 34 is preferably a spiral guide portion 34 adapted to the shape of the spiral guide groove 33, The buffer cylinder shell 31 is provided with a buffer top block 35 extending outward through the avoidance hole 12; the second articulated seat 2 is movably connected to the first articulated seat 1 through the connecting rod structure 4, and the first articulated seat 1 and the second articulated seat 2 can be relatively closed or opened through the action of the connecting rod structure 4. The second articulated seat 2 is provided with a buffer guide surface 46 corresponding to the buffer top block 35. During the relative closing process of the first articulated seat 1 and the second articulated seat 2, the buffer cylinder shell 31 abuts against the buffer guide surface 46 through the buffer top block 35 and rotates and guides between the guide part 34 and the spiral guide groove 33, so that buffer compression is performed between the buffer cylinder shell 31 and the movable rod 32, so that the first articulated seat 1 and the second articulated seat 2 form a buffer closure.

[0032] Compared with the prior art, the cup damping hinge of the present invention is provided with a buffer assembly 3 rotatably arranged inside the first hinge seat 1, and a buffer top block 35 cooperating with the buffer guide surface 46 of the second hinge seat 2 is arranged outside the buffer cylinder shell 31 of the buffer assembly 3, and a guide portion 34 cooperating with the spiral guide groove 33 outside the buffer cylinder shell 31 is arranged inside the first hinge seat 1, so that during the relative closing process of the first hinge seat 1 and the second hinge seat 2, the buffer cylinder shell 31 abuts against the buffer guide surface 46 through the buffer top block 35 and rotates and guides between the guide portion 34 and the spiral guide groove 33, and one end of the movable rod 32 is restricted from moving. The buffer cylinder shell 31 can, through the linkage effect of the buffer top block 35, linearly push the internal piston member 36 in a spiral rotation manner to perform buffer compression and move linearly toward the side relative to the piston member 36, so as to realize the buffer closure formed by the first hinge seat 1 and the second hinge seat 2. Through the combined use of geometric structures, the rotation method is cleverly used to transform and push the external buffer cylinder shell 31 of the buffer assembly 3 to move linearly to one side to realize the buffer function. The mechanical transmission of the buffer process is simple and direct, avoiding the problems of uneven speed, stagnation and inflexibility of the buffer process. The buffer effect is comfortable and soft, which greatly improves the buffer experience of the hinge and has a good use effect.

[0033] See also Figures 5 to 11In one embodiment, the first hinge seat 1 includes a hinge cup 13 and a cover plate 14, the bottom of the placement cavity 11 is open and is arranged on the cover plate 14, the guide portion 34 is located on the hinge cup 13, and the guide portion 34 is arranged relative to the placement cavity 11; through such an arrangement, the buffer assembly 3 is assembled in the placement cavity 11 of the hinge cup 13 and then fixed by the cover plate 14, and the assembly and connection method is simple.

[0034] See also Figure 7 and Figure 8 In one embodiment, the edge and inner side of the hinge cup 13 are respectively provided with a bayonet 139, and the cover plate 14 is respectively provided with a clamping block 149 corresponding to each bayonet 139, and the clamping block 149 is clamped in the bayonet 139 to realize the detachable assembly of the cover plate 14 and the hinge cup 13.

[0035] See also Figures 6 to 11 In one embodiment, a first limiting portion 331 is provided on the inner side of the spiral guide groove 33, and a second limiting portion 341 is provided on the side of the guide portion 34. When the first hinge seat 1 is relatively opened to a preset position, the first limiting portion 331 and the second limiting portion 341 are limited and cooperated. Through such a configuration, after the first hinge seat 1 is opened to the maximum angle, after the first hinge seat 1 is opened to the maximum angle, the excessive opening of the first hinge seat 1 relative to the second hinge seat 2 can be avoided to avoid damage to the connecting rod mechanism 4, thereby ensuring the reliability of product use.

[0036] See also Figures 6 to 11 In one embodiment, the buffer assembly 3 also includes a return spring 37 and a piston member 36 arranged at the inner end of the movable rod 32, the piston member 36 divides the inner cavity of the buffer cylinder shell 31 into a first cavity 311 and a second cavity 312, the return spring 37 is arranged in the first cavity 311 and acts on the piston member 36, and is used to provide an elastic driving force for the movable rod 32 to extend outward and provide a buffering effect when the movable rod 32 is retracted, the piston member 36 is provided with an oil flow channel respectively connecting the first cavity 311 and the second cavity 312, the oil flow channel is used to supply oil to flow between the first cavity 311 and the second cavity 312 when the piston member 36 moves in the buffer cylinder shell 31, so as to achieve a buffering effect when the buffer assembly 3 is compressed or extended; through such a configuration, the movable rod 32 of the buffer assembly 3 achieves deceleration buffering through hydraulic flow each time it is extended or compressed, and the buffer assembly 3 has a good buffering damping effect.

[0037] See also Figures 1 to 6In one embodiment, the connecting rod structure 4 includes a first connecting rod 41 and a second connecting rod 42, the two ends of the first connecting rod 41 are respectively rotatably connected to the first hinge seat 1 and the second hinge seat 2, the two ends of the second connecting rod 42 are respectively rotatably connected to the first hinge seat 1 and the second hinge seat 2, and the first hinge seat 1, the first connecting rod 41, the second hinge seat 2 and the second connecting rod 42 constitute a four-bar linkage; it also includes a driving torsion spring 43, the driving torsion spring 43 is rotatably connected to the second hinge seat 2, and the two elastic arms of the driving torsion spring 43 are respectively abutted against the second hinge seat 2 and the second connecting rod 42, and the driving torsion spring 43 is used to provide an elastic driving force for the first hinge seat 1 and the second hinge seat 2 in a relative closing direction; through such a setting, the setting method of the connecting rod structure 4 is simple, and the driving effect of the driving torsion spring 43 is good.

[0038] See also Figures 1 to 6 In one embodiment, a cup cavity 131 is provided on one side of the hinge cup 13 relative to the second hinge seat 2. When the first hinge seat 1 and the second hinge seat 2 are relatively closed, the connecting rod structure 4 is accommodated in the cup cavity 131. By such an arrangement, when the damping hinge in the cup is relatively closed, the overall structure is smaller and more compact.

[0039] See also Figures 6 to 11 In one embodiment, it also includes a locking mechanism 5, which is used to lock the compression state of the buffer assembly 3 so that the buffer closing function of the buffer assembly 3 is turned off when the first hinge seat 1 and the second hinge seat 2 are relatively closed; through such a setting, by setting the locking mechanism 5, it is convenient for the user to set the damping hinge in the cup to have a buffering damping effect during the closing process according to the use requirements, and it can be achieved without disassembling or replacing the buffer assembly 3, and it can be freely switched between buffering and non-buffering without affecting the normal use of the buffer, which is convenient for users to use.

[0040] See also Figures 6 to 11 In one embodiment, a locking groove 51 is provided on the outer side of the buffer cylinder shell 31, and the locking mechanism 5 includes a locking rod 52 slidably arranged on the first hinge seat 1. When the first hinge seat 1 is relatively closed, the locking groove 51 rotates with the buffer cylinder shell 31 to one end of the locking rod 52. By manipulating the locking rod 52 to insert into the locking groove 51 or to disengage from the locking groove 51, the buffer closing function of the buffer assembly 3 is closed or opened. Through such a configuration, the opening or closing operation mode of the buffer closing function of the buffer assembly 3 is convenient for users to use.

[0041] See also Figures 6 to 11In one embodiment, the locking rod 52 is arranged along the radial direction of the buffer cylinder shell 31, the locking groove 51 is open along the radial direction of the buffer cylinder shell 31, and the locking groove 51 is located in the spiral guide groove 33 of the buffer cylinder shell 31; the first hinge seat 1 is provided with a sliding key hole 54 corresponding to the locking rod 52, and the side of the locking rod 52 is provided with a sliding key 53 extending from the sliding key hole 54, and the relative position of the locking rod 52 can be controlled by pushing the sliding key 53; through such a setting, when the locking rod 52 is operated, the buffer closing function of the buffer assembly 3 can be quickly opened or closed.

[0042] See also Figures 6 to 11 In one embodiment, a sliding cavity 55 for accommodating a locking rod 52 is provided in the first hinge seat 1, and the sliding cavity 55 is open near one side of the buffer cylinder shell 31. The locking rod 52 is slidably arranged in the sliding cavity 55, and a positioning block 56 is provided on the side of the locking rod 52. A locking position 551 and an unlocking position 552 are adjacently provided on the side of the sliding cavity 55. When the locking rod 52 slides to the positioning block 56 and cooperates with the locking position 551, the buffer function of the buffer assembly 3 is in a closed state, and when the locking rod 52 slides to the positioning block 56 and cooperates with the unlocking position 552, the buffer function of the buffer assembly 3 is in an open state; through such a setting, the relative position of the locking rod 52 is positioned by setting the locking position 551 and the unlocking position 552, which can better avoid the locking rod 52 from being displaced and affecting the locking of the buffer closing function of the buffer assembly 3.

[0043] See also Figures 6 to 11 In one embodiment, the sliding cavity 55 is opened on the upper side and is arranged on the hinge cup 13, the cover plate 14 is used to cover the partial opening of the sliding cavity 55, the slide key hole 54 is arranged on the cover plate 14 and corresponds to the sliding cavity 55, the first hinge seat 1 is located on both sides of the avoidance hole 12 and is respectively provided with mounting seats 10 for assembly and connection with the cabinet door, the mounting seats 10 are arranged on the hinge cup 13, and the slide key hole 54 is arranged on the first hinge seat 1 on one side of the avoidance hole 12; through such an arrangement, the cover plate 14 has a simple and compact structural design, and the buffer top block 35 has a good avoidance effect.

[0044] See also Figures 6 to 11In one embodiment, a touch surface 351 is provided on the top of the buffer top block 35, and a plurality of abutting spokes 38 arranged side by side are provided on the bottom of the buffer top block 35 along the radial direction of the buffer cylinder shell 31. The buffer top block 35 cooperates with the buffer guide surface 46 through the plurality of abutting spokes 38, and the bottom of the abutting spokes 38 is arc-shaped or inclined. Through such a configuration, it is convenient for the user to bend the buffer top block 35 by hand until the buffer assembly 3 is in a compressed state, that is, after the buffer assembly 3 is bent to the maximum angle, the locking rod 52 is pulled into the locking groove of the buffer assembly 3 to lock the buffer assembly 3 and prevent it from automatically resetting, so that the buffer top block 35 and the second hinge seat 2 are always out of contact during the closing process of the hinge, thereby turning off the buffer closing function of the buffer assembly 3 and realizing the non-buffering function of the hinge.

[0045] See also Figures 1 to 6 In one embodiment, the second articulated seat 2 includes an articulated arm 21, an adjustment frame 22 and a base 23, and the base 23 is respectively provided with a fixed seat 20 extending outward on both sides for assembly and connection with the cabinet body, the base 23 is installed on the inner side of the adjustment frame 22, the adjustment frame 22 is installed on the inner side of the articulated arm 21, the articulated arm 21 is transmission-connected with the connecting rod structure 4, the adjustment frame 22 is connected to the inner side of the articulated arm 21 through an adjustment structure, the base 23 and the adjustment frame 22 are slidingly connected through a guide structure, and an elastic reset structure is provided between the base 23 and the adjustment frame 22, and the elastic reset structure is used to provide an elastic driving force for the base 23 to the first articulated seat 1 side; through such a setting, when the first articulated seat 1 and the second articulated seat 2 are relatively closed, the adjustment frame 22 and the base 23 can be adaptively adjusted such as displacement to avoid jamming at the connection between the second articulated seat 2 and the cabinet body, and ensure the smoothness of opening and closing of the damping hinge in the cup.

[0046] See also Figures 1 to 6 In one embodiment, the adjustment structure includes a first adjustment hole 211 and a first connecting hole 212 provided at the top of the articulated arm 21, a second adjustment hole 221 and a second connecting hole 222 provided at the top of the adjustment frame 22, and a first screw 25 and a second screw 26; the first screw 25 passes through the first adjustment hole 211 and is connected to the second connecting hole 222, and the second screw 26 passes through the second adjustment hole 221 and is connected to the first connecting hole 212; by setting it in this way, by setting the adjustment structure, the overall length of the second articulated seat 2 can be shortened or extended according to needs, which is convenient for product assembly and fixation.

[0047] See also Figure 5 and Figure 6In one embodiment, the guide structure includes an arc-shaped hole 271 provided at the front end of the adjustment frame 22 and a guide shaft 272 provided at the base 23, the guide shaft 272 can be movably placed in the arc-shaped hole 271, and a push-out frame 28 is provided at the rear side of the base 23, and the push-out frame 28 is rotatably connected to the rear end of the adjustment frame 22 through a first rotating shaft 281; through such an arrangement, the adaptive position adjustment between the adjustment frame 22 and the base 23 is limited within a preset track of the arc-shaped hole 271, and the relative movement between the adjustment frame 22 and the base 23 is smooth.

[0048] See also Figure 5 and Figure 6 In one embodiment, the elastic reset structure includes a first reset torsion spring 291 and a second reset torsion spring 292, the first reset torsion spring 291 is rotatably connected to the adjustment frame 22 through a second rotating shaft 295, one end of the first reset torsion spring 291 is clamped in the clamping groove of the inner top wall of the adjustment frame 22, and the other end thereof abuts on the guide shaft 272, one end of the second reset torsion spring 292 abuts on the rear end of the adjustment frame 22, and the other end thereof abuts on the ejection frame 28; through such a setting, the setting method of the elastic reset structure is simple, and the elastic reset effect of the driving base 23 is good.

[0049] According to the disclosure and teaching of the above description, those skilled in the art to which the present invention belongs may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the present invention.

Claims

1. An in-cup damping hinge, characterized in that: include: The first hinge seat is provided with a cylindrical placement cavity located inside and a buffer assembly placed in the placement cavity, the placement cavity is provided with an avoidance hole communicating with the outside, the buffer assembly includes a buffer cylinder shell and a movable rod partially buffered and placed in the buffer cylinder shell, two ends of the buffer assembly abut against the two end side walls of the placement cavity, the outside of the buffer cylinder shell is provided with a spiral guide groove arranged along the length direction, the first hinge seat is provided with a guide portion matched with the spiral guide groove, and the buffer cylinder shell is provided with a buffer top block extending out of the outside through the avoidance hole; The second articulated seat is movably connected to the first articulated seat through a connecting rod structure, and the first articulated seat and the second articulated seat can be relatively closed or opened through the action of the connecting rod structure. The second articulated seat is provided with a buffer guide surface corresponding to the buffer top block. During the relative closing process of the first articulated seat and the second articulated seat, the buffer cylinder shell abuts against the buffer guide surface through the buffer top block and rotates and guides between the guide part and the spiral guide groove, so that buffer compression is performed between the buffer cylinder shell and the movable rod, so that the first articulated seat and the second articulated seat form a buffer closure.

2. The in-cup damping hinge according to claim 1, characterized in that: The first hinge seat comprises a hinge cup and a cover plate. The bottom of the placement cavity is open and is arranged on the cover plate. The guide portion is located on the hinge cup.

3. The in-cup damping hinge according to claim 2, characterized in that: A first limiting portion is provided on the inner side of the spiral guide groove, and a second limiting portion is provided on the side of the guide portion. When the first hinge seat is relatively opened to a preset position, the first limiting portion and the second limiting portion are limitedly matched.

4. The in-cup damping hinge according to claim 2, characterized in that: The buffer assembly also includes a return spring and a piston member arranged at the inner end of the movable rod. The piston member divides the inner cavity of the buffer cylinder shell into a first cavity and a second cavity. The return spring is arranged in the first cavity and acts on the piston member, and is used to provide an elastic driving force for the movable rod to extend outward and to provide a buffering effect when the movable rod is retracted. The piston member is provided with an oil flow channel respectively connecting the first cavity and the second cavity. The oil flow channel is used to supply oil to flow between the first cavity and the second cavity when the piston member moves in the buffer cylinder shell, thereby achieving a buffering effect when the buffer assembly is compressed or extended.

5. The in-cup damping hinge according to claim 1, characterized in that: A plurality of abutting spokes arranged side by side are provided at the bottom of the buffer top block along the radial direction of the buffer cylinder shell, and the buffer top block cooperates with the buffer guide surface through the plurality of abutting spokes.

6. The in-cup damping hinge according to any one of claims 1 to 5, characterized in that: The connecting rod structure comprises a first connecting rod and a second connecting rod, the two ends of the first connecting rod are respectively rotatably connected to the first hinge seat and the second hinge seat, the two ends of the second connecting rod are respectively rotatably connected to the first hinge seat and the second hinge seat, and the first hinge seat, the first connecting rod, the second hinge seat and the second connecting rod constitute a four-bar linkage; It also includes a driving torsion spring, which is rotatably connected to the second hinge seat, and the two elastic arms of the driving torsion spring are respectively abutted against the second hinge seat and the second connecting rod, and the driving torsion spring is used to provide an elastic driving force for the first hinge seat and the second hinge seat in a relative closing direction.

7. The in-cup damping hinge according to claim 2, characterized in that: The hinge cup is provided with a cup cavity on one side opposite to the second hinge seat. When the first hinge seat and the second hinge seat are relatively closed in place, the connecting rod structure is accommodated in the cup cavity.

8. The in-cup damping hinge according to claim 1, characterized in that: It also includes a locking mechanism, which is used to lock the compression state of the buffer assembly so that the buffer closing function of the buffer assembly is turned off when the first hinge seat and the second hinge seat are relatively closed.

9. The in-cup damping hinge according to claim 1, characterized in that: The second articulated seat includes an articulated arm, an adjustment frame and a base, and fixed seats extending outward are respectively provided on both sides of the base, and the base is installed on the inner side of the adjustment frame, and the adjustment frame is installed on the inner side of the articulated arm. The articulated arm is transmission-connected to the connecting rod structure, and the adjustment frame is connected to the inner side of the articulated arm through the adjustment structure. The base and the adjustment frame are slidingly connected through a guide structure, and an elastic reset structure is provided between the base and the adjustment frame, and the elastic reset structure is used to provide an elastic driving force for the base to the side of the first articulated seat.

10. The in-cup damping hinge according to claim 9, characterized in that: The adjustment structure comprises a first adjustment hole and a first connecting hole provided at the top of the articulated arm, a second adjustment hole and a second connecting hole provided at the top of the adjustment frame, and a first screw and a second screw; the first screw passes through the first adjustment hole and is connected to the second connecting hole, and the second screw passes through the second adjustment hole and is connected to the first connecting hole; The guide structure includes an arc-shaped hole provided at the front end of the adjustment frame and a guide shaft provided at the base, the guide shaft can be movably placed in the arc-shaped hole, a push-out frame is provided at the rear side of the base, and the push-out frame is rotatably connected to the rear end of the adjustment frame through a first rotating shaft; The elastic reset structure includes a first reset torsion spring and a second reset torsion spring. The first reset torsion spring is rotatably connected to the adjustment frame via a second rotating shaft. One end of the first reset torsion spring is clamped in a clamping groove on the inner top wall of the adjustment frame, and the other end thereof abuts against the guide shaft. One end of the second reset torsion spring abuts against the rear end of the adjustment frame, and the other end thereof abuts against the ejection frame.

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