Damper assembly

Abstract

The invention belongs to the technical field of hinge accessories, and particularly relates to a buffer assembly. When the buffer assembly is applied to the hinge device, the buffer assembly is rotationally arranged in the first hinge seat of the hinge device, the outer side of the buffer cylinder shell of the buffer assembly is provided with a buffer top block, and the inner side of the first hinge seat is provided with a guide part matched with a spiral guide groove in the outer side of the buffer cylinder shell; in the relative closing process of the first hinge seat, the buffer cylinder shell abuts against the preset position through the buffer ejector block, and the buffer assembly conducts buffer compression through the rotary guiding effect between the guiding part and the spiral guiding groove, so that buffer closing of the first hinge seat is achieved; the rotating mode is ingeniously applied to convert and push the buffer cylinder shell outside the buffer assembly to linearly move towards one side to achieve the buffer function, mechanical transmission in the buffer process is simple and direct, the problems of uneven speed, clamping stagnation in the buffer process, unsmoothness and the like in the buffer function are solved, and the use effect is good.

Description

Technical Field

[0001] The invention belongs to the technical field of hinge accessories, and in particular relates to a buffer assembly. Background Art

[0002] In the current buffer hinge device, 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 device 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 device, and to provide a buffer component with uniform buffering function speed and flexible buffering used in the hinge device.

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

[0005] The buffer assembly includes a buffer cylinder shell, a piston member and a movable rod. The movable rod is connected to the buffer cylinder shell through a hydraulic structure. The piston member is arranged at the inner end of the movable rod. The outer side of the buffer cylinder shell is provided with a spiral guide groove arranged along the length direction. The buffer cylinder shell is provided with a buffer top block, and the top of the buffer top block is provided with a touch surface.

[0006] Compared with the prior art, the buffer assembly of the present invention, when used in a hinge device, is rotatably arranged in the first hinge seat of the hinge device. A buffer top block is provided on the outer side of the buffer cylinder shell of the buffer assembly, and a guide portion cooperating with the spiral guide groove on the outer side of the buffer cylinder shell is provided on the inner side of the first hinge seat, so that during the relative closing process of the first hinge seat, the buffer cylinder shell is abutted against the preset position through the buffer top block and rotates and guides between the guide portion and the spiral guide groove. Combined with the restricted movement of one end of the movable rod, the buffer cylinder shell can, through the linkage action of the buffer top block, linearly push the piston part in a spiral rotation manner to perform buffering compression and move linearly to the side relative to the piston part, thereby realizing the buffering closure of the first 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 relative to the movable rod to realize the buffering function. The mechanical transmission of the buffering process is simple and direct, avoiding the problems of uneven speed, jamming and inflexibility of the buffering process, and the buffering effect is comfortable and soft, which greatly improves the buffering experience of the hinge device and has a good use effect.

[0007] Furthermore, the hydraulic structure includes an oil flow channel provided on the piston member and hydraulic oil provided in the oil chamber of the buffer cylinder shell. The piston member divides the oil chamber of the buffer cylinder shell into a first chamber and a second chamber. The piston member is provided with an oil flow channel respectively connecting the first chamber and the second chamber. The oil flow channel is used for supplying hydraulic oil to flow between the first chamber and the second chamber when the piston member moves in the buffer cylinder shell, thereby achieving a buffering effect when the buffer assembly is compressed or extended. Through such an arrangement, the movable rod of the buffer assembly achieves deceleration buffering through hydraulic flow each time it is extended or compressed, and the buffer assembly has a good buffering damping effect.

[0008] Furthermore, it also includes a return spring, which 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 provide a buffering effect when the movable rod is retracted; by setting the return spring, the buffering effect of the movable rod is further improved, and the softness of the movable rod when it is reset is improved.

[0009] Furthermore, a plurality of abutment spokes arranged side by side are provided at the bottom of the buffer top block along the radial direction of the buffer cylinder shell, the height of the abutment spokes away from the outer end of the movable rod is smaller than the height of the remaining abutment spokes, and the buffer top block cooperates with the buffer guide surface through the plurality of abutment spokes.

[0010] Furthermore, the piston member is provided with a first sealing groove arranged along the circumferential direction, a first sealing ring is provided in the first sealing groove, and the outer periphery of the piston member is sealed with the inner wall of the oil chamber through the first sealing ring; through such an arrangement, the hydraulic oil in the oil chamber is better limited to flow only between the first cavity and the second cavity through the oil flow channel, thereby ensuring that the piston member achieves a buffering effect when moving in the oil chamber.

[0011] Furthermore, the shell cavity in the buffer cylinder shell is cylindrical and has an open end, and the inner end of the shell cavity is sequentially arranged outward as the oil cavity, the guide cavity and the sealing cavity; a guide structure is provided in the guide cavity, and the movable rod is slidably connected with the guide structure; a sealing plug is provided in the sealing cavity and seals with the movable rod; through such an arrangement, the guide structure cooperates with the movable rod guide, which can better avoid shaking when the movable rod moves, thereby ensuring the axial movement effect of the movable rod.

[0012] Furthermore, the inner diameter of the sealing cavity is larger than the inner diameter of the guide cavity, a first step is formed between the sealing cavity and the guide cavity, the inner diameter of the guide cavity is larger than the inner diameter of the oil cavity, and a second step is formed between the guide cavity and the oil cavity; the sealing plug is installed in the sealing cavity and limited on the first step, and the guide structure is installed in the guide cavity and limited between the second step and the sealing plug; by setting the first step and the second step, the sealing plug and the guide structure are limited respectively, the sealing plug and the guide structure have a good fixing effect, and the product assembly has good stability.

[0013] Furthermore, a limiting convex portion arranged along the circumferential direction is provided on one side of the sealing cavity close to the opening, and the outer side of the sealing plug is interference fit with the limiting convex portion; through such an arrangement, the sealing plug and the sealing cavity have a good sealing fit effect, avoiding leakage of hydraulic oil.

[0014] Furthermore, the sealing plug includes a sealing seat and an oil seal, the sealing seat is provided with a second sealing groove with a rear end opening and a movable hole connecting the front side and the second sealing groove, the movable rod is slidably placed in the movable hole, and the oil seal is placed in the second sealing groove and seals with the outer side of the movable rod; through such an arrangement, the movable rod and the sealing seat are sealed through the oil seal, which effectively avoids hydraulic oil leakage when the movable rod moves relatively, and the product has good reliability.

[0015] Furthermore, the guide structure includes a guide frame and a guide sleeve arranged on the guide frame, and the guide sleeve is sleeve-engaged with the movable rod; through such an arrangement, the movable rod is guided and engaged in the buffer cylinder shell by the guide sleeve, thereby ensuring the stability and smoothness of the relative movement of the movable rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a top schematic diagram of the first hinged seat in an open state relative to the second hinged seat.

[0017] Figure 2 It is a bottom schematic diagram of the first hinge seat in an open state relative to the second hinge seat.

[0018] Figure 3 It is a top schematic diagram of the first hinge seat in a closed state relative to the second hinge seat.

[0019] Figure 4 It is a schematic diagram showing that the first hinge seat is closed to a preset position relative to the second hinge seat.

[0020] Figure 5 This is an exploded view of the second hinged seat.

[0021] Figure 6 It is a cross-sectional view of the first hinge seat, the connecting rod mechanism and the second hinge seat.

[0022] Figure 7The explosion of the first articulated seat Figure 1 .

[0023] Figure 8 The explosion of the first articulated seat Figure 2 .

[0024] Fig. 9 A cross-sectional view of the buffer assembly.

[0025] Fig.10 Exploded view of the buffer assembly in cross-section

[0026] Fig.11 Exploded view of the buffer assembly with the buffer cylinder housing removed.

[0027] Fig.12 This is a schematic diagram of the unlocked state of the first hinge seat.

[0028] Fig.13 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 limiting part 331, second limiting part 341, piston member 36, return spring 37, first cavity 311, second cavity 312, abutting spoke 38, connecting rod structure 4, first connecting rod 41, second connecting rod 42, driving torsion spring 43, cup cavity 131, locking mechanism 5, locking groove 51, locking rod 52, sliding key 53, sliding key hole 54, sliding cavity 55, positioning block 56, locking position 551, unlocking position 552, hinge arm 21, adjustment frame 22, base 23, fixing seat 24, first adjustment hole 211, first Connecting hole 212, second adjusting 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, shell cavity 30, oil cavity 303, guide cavity 302, sealing cavity 301, sealing plug 39, first step 304, second step 305, limiting protrusion 306, sealing seat 391, oil seal 392, movable hole 393, guide sleeve 307, guide frame 308, oil flow channel 361, first sealing groove 362, second sealing groove 394, first sealing ring 363. 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] Embodiment 1:

[0032] See also Figures 1 to 13 The buffer assembly 3 of the present invention includes a buffer cylinder shell 31, a piston member and a movable rod 32. The movable rod 32 is connected to the buffer cylinder shell 31 through a hydraulic structure. The piston member is arranged at the inner end of the movable rod 32. The outer side of the buffer cylinder shell 31 is provided with a spiral guide groove 33 arranged along the length direction. The buffer cylinder shell 31 is provided with a buffer top block 35 extending outward, and the top of the buffer top block 35 is provided with a touch surface.

[0033] Compared with the prior art, the buffer assembly 3 of the present invention, when used in a hinge device, is rotatably arranged in the first hinge seat 1 of the hinge device. A buffer top block 35 is provided on the outer side of the buffer cylinder shell 31 of the buffer assembly 3, and a guide portion 34 is provided on the inner side of the first hinge seat 1 to cooperate with the spiral guide groove 33 on the outer side of the buffer cylinder shell 31, so that during the relative closing process of the first hinge seat 1, the buffer cylinder shell 31 is abutted against the preset position through the buffer top block 35 and rotates and guides between the guide portion 34 and the spiral guide groove 33, so that the buffer assembly 3 performs buffering compression to achieve the buffering closure of the first hinge seat 1. 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 achieve 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 device and has a good use effect.

[0034] See also Figure 7 and Figure 8In one embodiment, the hydraulic structure includes an oil flow channel 361 provided on the piston member and hydraulic oil provided in the oil chamber 303 of the buffer cylinder shell 31. The piston member separates the oil chamber 303 of the buffer cylinder shell 31 into a first chamber 311 and a second chamber 312. The piston member is provided with an oil flow channel 361 respectively connecting the first chamber 311 and the second chamber 312. The oil flow channel is used for supplying hydraulic oil to flow between the first chamber 311 and the second chamber 312 when the piston member 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.

[0035] See also Figure 7 and Figure 8 In one embodiment, a return spring 37 is further included. The return spring 37 is arranged in the first cavity 311 and acts on the piston member, and is used to provide an elastic driving force for the movable rod 32 to extend outward and to provide a buffering effect when the movable rod 32 is retracted; by setting the return spring 37, the buffering effect of the movable rod 32 is further improved, and the softness of the movable rod 32 when it is reset is improved.

[0036] See also Figure 7 and Figure 8 In one embodiment, the bottom of the buffer top block 35 is provided with a plurality of abutting spokes 38 arranged side by side along the radial direction of the buffer cylinder shell 31, the height of the abutting spokes 38 away from the outer end of the movable rod is less than the height of the remaining abutting spokes 38, and the buffer top block 35 cooperates with the buffer guide surface 46 through the plurality of abutting spokes 38. The bottom of the abutting spokes 38 is arc-shaped or inclined.

[0037] In one embodiment, a locking groove 51 is provided on one side of the spiral guide groove 33 , and a first limiting portion 331 is provided on the other side of the spiral guide groove 33 .

[0038] See also Figures 7 to 11 In one embodiment, the piston member 36 is provided with a first sealing groove 362 arranged along the circumferential direction, and a first sealing ring 363 is provided in the first sealing groove 362. The outer periphery of the piston member 36 is sealed with the inner wall of the oil chamber 303 through the first sealing ring 363. Through such an arrangement, it is better to limit the hydraulic oil in the oil chamber 303 to flow only between the first cavity 311 and the second cavity 312 through the oil flow channel 361, thereby ensuring that the piston member 36 achieves a buffering effect when it moves in the oil chamber 303.

[0039] See also Figures 7 to 11In one embodiment, the shell cavity 30 in the buffer cylinder shell 31 is cylindrical and has an open end, and the inner end of the shell cavity 30 is sequentially arranged outward as the oil cavity 303, the guide cavity 302 and the sealing cavity 301; a guide structure is arranged in the guide cavity 302, and the movable rod 32 is slidably connected with the guide structure; a sealing plug 39 is arranged in the sealing cavity 301 for sealingly cooperating with the movable rod 32; through such an arrangement, the guide structure cooperates with the movable rod 32 to better avoid shaking when the movable rod 32 moves, thereby ensuring the axial movement effect of the movable rod 32.

[0040] See also Figures 7 to 11 In one embodiment, the inner diameter of the sealing cavity 301 is larger than the inner diameter of the guide cavity 302, a first step 304 is formed between the sealing cavity 301 and the guide cavity 302, the inner diameter of the guide cavity 302 is larger than the inner diameter of the oil cavity 303, and a second step 305 is formed between the guide cavity 302 and the oil cavity 303; the sealing plug 39 is installed in the sealing cavity 301 and limited on the first step 304, and the guide structure is installed in the guide cavity 302 and limited between the second step 305 and the sealing plug 39; by setting the first step 304 and the second step 305, the sealing plug 39 and the guide structure are limited respectively, the sealing plug 39 and the guide structure have a good fixing effect, and the product assembly stability is good.

[0041] See also Figures 7 to 11 In one embodiment, a circumferentially arranged limiting protrusion 306 is provided on one side of the sealing cavity 301 close to the opening, and the outer side of the sealing plug 39 is interference fit with the limiting protrusion 306; through such a setting, the sealing plug 39 and the sealing cavity 301 have a good sealing fit effect, avoiding leakage of hydraulic oil.

[0042] See also Figures 7 to 11 In one embodiment, the sealing plug 39 includes a sealing seat 391 and an oil seal 392. The sealing seat 391 is provided with a second sealing groove 394 with a rear end opening and a movable hole 393 connecting the front side and the second sealing groove 394. The movable rod 32 is slidably placed in the movable hole 393, and the oil seal 392 is placed in the second sealing groove 394 and sealed with the outer side of the movable rod 32. Through such an arrangement, the movable rod 32 and the sealing seat 391 are sealed through the oil seal 392, which effectively avoids hydraulic oil leakage when the movable rod 32 moves relatively, and the product has good reliability.

[0043] See also Figures 7 to 11In one embodiment, the guide structure includes a guide frame 308 and a guide sleeve 307 arranged on the guide frame 308, and the guide sleeve 307 is sleeved and matched with the movable rod 32; through such a setting, the movable rod 32 is guided and matched in the buffer cylinder shell 31 by the guide sleeve 307, thereby ensuring the stability and smoothness of the relative movement of the movable rod 32.

[0044] Embodiment 2:

[0045] See also Figures 1 to 13 The main purpose of this embodiment is to provide a hinge buffer mechanism of the buffer assembly 3 of the first embodiment, including a first hinge seat 1, a buffer assembly 3 and a connecting rod mechanism; the first hinge seat 1 is provided with a cylindrical placement cavity 11 located on the inner side, the buffer assembly 3 is placed in the placement cavity 11, the placement cavity 11 is provided with an avoidance hole 12 connected to the outside, the buffer top block 35 extends to the outside through the avoidance hole 12, the two ends of the buffer assembly 3 abut on the two end side walls of the placement cavity 11, the first hinge seat 1 is provided with a guide portion 34 matched with the spiral guide groove 33; the connecting rod structure 4 is transmission-connected to one end of the first hinge seat 1, and is used to support the relative opening or closing of the first hinge seat 1; during the relative closing process of the first hinge seat 1, the buffer cylinder shell 31 abuts on the preset position through the buffer top block 35 and is axially translated through the rotational guide between the guide portion 34 and the spiral guide groove 33, so that the buffer cylinder shell 31 and the buffer assembly 3 are buffered and compressed, so that the first hinge seat 1 forms a buffer closure.

[0046] Compared with the prior art, the hinge buffer mechanism of the present invention is applied in a hinge device, in which a buffer assembly 3 is rotatably arranged on the inner side of the first hinge seat 1, a buffer top block 35 is arranged on the outer side of the buffer cylinder shell 31 of the buffer assembly 3, and a guide portion 34 is arranged on the inner side of the first hinge seat 1 to cooperate with the spiral guide groove 33 on the outer side of the buffer cylinder shell 31, so that during the relative closing process of the first hinge seat 1, the buffer cylinder shell 31 is abutted against the preset position through the buffer top block 35 and rotates and guides between the guide portion 34 and the spiral guide groove 33, so that the buffer assembly 3 performs buffering compression to achieve the buffering closure of the first hinge seat 1, and through the combined use of geometric structures, the rotation mode is cleverly used to transform and push the outer buffer cylinder shell 31 of the buffer assembly 3 to move linearly to one side to achieve the buffering function, the mechanical transmission of the buffering process is simple and direct, and the problems of uneven speed, stagnation and inflexibility of the buffering process are avoided, the buffering effect is comfortable and soft, which greatly improves the buffering experience of the hinge device and has a good use effect.

[0047] See also Figures 6 to 13In 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 setting, 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, thereby ensuring the reliability of product use.

[0048] See also Figures 6 to 13 In 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, the hinge cup 13 is used to cover the opening of the placement cavity 11, 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 and fixed by the hinge cup 13, and the assembly connection method is simple.

[0049] 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.

[0050] See also Figures 6 to 13 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 is 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 usage requirements.

[0051] See also Figures 7 to 13 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.

[0052] See also Figures 6 to 9 , Fig.12 and Fig.13In 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 manipulated by pushing the sliding key 53; through such an arrangement, when the locking rod 52 is operated, the buffer closing function of the buffer assembly 3 can be quickly opened or closed.

[0053] See also Figures 6 to 9 , Fig.12 and Fig.13 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 opened 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 the locking rod 52 slides to the locking position 551. When the positioning block 56 moves to cooperate with the unlocking position 552, the buffer function of the buffer assembly 3 is in the on 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. When the locking rod 52 slides to the locking position 551, the positioning effect of the locking position 551 can prevent the locking rod 52 from automatically sliding out, thereby avoiding the failure of the closing buffer function.

[0054] See also Figures 6 to 9 , Fig.12 and Fig.13 In one embodiment, a touch surface 351 is provided on the top of the buffer top block 35, and a plurality of abutment strips 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 abutment strips 38, and the bottom of the abutment strips 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 push rod 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 51 of the buffer push rod 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 push rod and realizing the non-buffering function of the hinge.

[0055] See also Figures 6 to 9 , Fig.12 and Fig.13In 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, and the sliding key hole 54 is arranged on the cover plate 14 corresponding to the sliding cavity 55; through such an arrangement, the first hinge seat 1 is simply arranged, and after the buffer assembly 3 and the locking rod 52 are placed on the base 23, they are covered and fixed by the cover plate 14.

[0056] See also Figures 6 to 9 , Fig.12 and Fig.13 In one embodiment, a cup cavity 131 is provided on one side of the hinge cup 13, and when the first hinge seat 1 is relatively closed, the connecting rod structure 4 is accommodated in the cup cavity 131; through such an arrangement, when the damping hinge in the cup is relatively closed, the overall structure is smaller and more compact.

[0057] See also Figures 6 to 9 , Fig.12 and Fig.13 In one embodiment, the avoidance hole 12 is located on the side of the cover plate 14 corresponding to the cup cavity 131, and the first hinge seat 1 is provided with mounting seats 10 on both sides of the avoidance hole 12, and the mounting seats 10 are arranged on the hinge cup 13, and the sliding key hole 54 is arranged on the mounting seat 10 on one side; 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.

[0058] See also Figures 1 to 9 , Fig.12 and Fig.13 In one embodiment, when the first articulated seat 1 and the connecting rod structure 4 are used in the articulated device, it also includes a configured second articulated seat 2. The first articulated seat 1 is movably connected to the second articulated seat 2 through the connecting rod structure 4. 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 preset position is a buffer guide surface 46 provided on the second articulated seat 2. 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 through the rotational guiding action of the spiral guide structure, the buffer cylinder shell 31 rotates and translates relative to the buffer assembly 3 for buffering compression, so that the first articulated seat 1 and the second articulated seat 2 form a buffer closure.

[0059] 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.

[0060] 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 24 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.

[0061] 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.

[0062] 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.

[0063] 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 adjusting frame 22 via a second rotating shaft 295. One end of the first reset torsion spring 291 is clamped in the clamping groove 229 of the inner top wall of the adjusting frame 22, and the other end thereof abuts against the guide shaft 272. One end of the second reset torsion spring 292 abuts against the rear end of the adjusting frame 22, and the other end thereof abuts against the ejection frame 28. Through such an arrangement, the elastic reset structure is simply arranged, and the elastic reset effect of the driving base 23 is good.

[0064] 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. A buffer assembly, characterized in that It includes a buffer cylinder shell, a piston member and a movable rod. The movable rod is connected to the buffer cylinder shell through a hydraulic structure. The piston member is arranged at the inner end of the movable rod. The outer side of the buffer cylinder shell is provided with a spiral guide groove arranged along the length direction. The buffer cylinder shell is provided with a buffer top block, and a touch surface is provided on the top of the buffer top block.

2. The buffer assembly according to claim 1, characterized in that The hydraulic structure includes an oil flow channel arranged on the piston member and hydraulic oil arranged in the oil chamber of the buffer cylinder shell. The piston member divides the oil chamber in the buffer cylinder shell into a first chamber and a second chamber. The piston member is provided with an oil flow channel respectively connecting the first chamber and the second chamber. The oil flow channel is used for supplying hydraulic oil to flow between the first chamber and the second chamber when the piston member moves in the buffer cylinder shell, thereby achieving a buffering effect when the buffer assembly is compressed or stretched.

3. The buffer assembly according to claim 2, characterized in that It also includes a return spring, which is arranged in the first cavity and acts on the piston member to provide an elastic driving force for the movable rod to extend outward and provide a buffering effect when the movable rod is retracted.

4. The buffer assembly according to claim 1, characterized in that The bottom of the buffer top block is provided with a plurality of abutment spokes arranged side by side along the radial direction of the buffer cylinder shell, the height of the abutment spokes away from the outer end of the movable rod is smaller than the height of the remaining abutment spokes, and the buffer top block cooperates with the buffer guide surface through the plurality of abutment spokes.

5. The buffer assembly according to claim 2, characterized in that: The piston member is provided with a first sealing groove arranged along the circumferential direction, a first sealing ring is provided in the first sealing groove, and the outer periphery of the piston member is sealed with the inner wall of the oil chamber through the first sealing ring.

6. The buffer assembly according to claim 2, characterized in that The shell cavity in the buffer cylinder shell is cylindrical and has an open end, and the inner end of the shell cavity is sequentially arranged outwardly as the oil chamber, the guide chamber and the sealing chamber; A guide structure is provided in the guide cavity, and the movable rod is slidably connected to the guide structure; A sealing plug which is in sealing cooperation with the movable rod is arranged in the sealing cavity.

7. The buffer assembly according to claim 6, characterized in that The inner diameter of the sealing cavity is larger than the inner diameter of the guide cavity, a first step is formed between the sealing cavity and the guide cavity, the inner diameter of the guide cavity is larger than the inner diameter of the oil cavity, a second step is formed between the guide cavity and the oil cavity; The sealing plug is installed in the sealing cavity and limited on the first step, and the guide structure is installed in the guide cavity and limited between the second step and the sealing plug.

8. The buffer assembly according to claim 6 or 7, characterized in that: A limiting convex portion arranged along the circumferential direction is provided on one side of the sealing cavity close to the opening, and the outer side of the sealing plug is interference-fitted with the limiting convex portion.

9. The buffer assembly according to claim 6, characterized in that: The sealing plug includes a sealing seat and an oil seal. The sealing seat is provided with a second sealing groove with a rear end opening and a movable hole connecting the front side and the second sealing groove. The movable rod is slidably placed in the movable hole. The oil seal is placed in the second sealing groove and seals with the outer side of the movable rod.

10. The buffer assembly according to claim 6, characterized in that The guide structure comprises a guide frame and a guide sleeve arranged on the guide frame, and the guide sleeve is sleeve-engaged with the movable rod.

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