CN221073866U

CN221073866U - Concealed hinge

Info

Publication number: CN221073866U
Application number: CN202322563656.1U
Authority: CN
Inventors: 潘约章
Original assignee: Zhaoqing Baitai Precision Hardware Products Co ltd
Current assignee: Zhaoqing Baitai Precision Hardware Products Co ltd
Priority date: 2023-09-20
Filing date: 2023-09-20
Publication date: 2024-06-04
Anticipated expiration: 2033-09-20

Abstract

The utility model relates to the technical field of hinges and discloses a hidden hinge which comprises a first fixing seat, a first mounting seat, a second fixing seat, a second mounting seat, a first hydraulic buffer shaft and a connecting assembly, wherein the first mounting seat is arranged on the first fixing seat in an up-down adjustable manner, the first mounting seat is provided with a first mounting groove, the first hydraulic buffer shaft is arranged in the first mounting groove, the first hydraulic buffer shaft comprises a first sleeve, a first shaft core mechanism and a first hydraulic mechanism, the first sleeve is rotationally connected with the first mounting seat, one end of the first shaft core mechanism extends out of the first sleeve and is fixedly connected with the first mounting seat, the second mounting seat is arranged on the second fixing seat in a front-back adjustable manner, the second mounting seat is provided with a second mounting groove, one side of the connecting assembly extends into the first mounting groove and is fixedly connected with the first sleeve, and the other side of the connecting assembly extends into the second mounting groove and is rotationally connected with the second mounting seat. The hydraulic buffer switch door can realize hydraulic buffer switch door, and has compact overall structure.

Description

Concealed hinge

Technical Field

The utility model relates to the technical field of hinges, in particular to a hidden hinge.

Background

The hinge plays an important role in the life of people, and the hinge occupies an important position in furniture hardware fittings. The quality of the hinge is directly related to the use of the furniture and the door. In order to be more attractive after the hinge is installed, hidden hinges appear on the market, however, the existing hidden hinges generally only have a hinging function, do not have a function of buffering when a door is opened or closed, and cannot control the speed of closing the door. When the door is closed, if larger external force exists, the door plate and the door frame collide violently to generate larger sound, and the violent collision easily causes overlarge interaction force between the door plate and the door frame, so that the door plate or the door frame is easily damaged, the service lives of the door frame and the door plate are influenced, and certain potential safety hazards exist.

Disclosure of utility model

The utility model aims to solve the technical problem of providing a hidden hinge which can realize hydraulic buffer door opening and closing and has a compact overall structure.

In order to achieve the above object, the utility model provides a hidden hinge, which comprises a first fixing seat, a first mounting seat, a second fixing seat, a second mounting seat, a first hydraulic buffer shaft and a connecting component, wherein the first mounting seat is arranged on the first fixing seat in a vertically adjustable manner, the first mounting seat is provided with a first mounting groove, the first hydraulic buffer shaft is arranged in the first mounting groove, the first hydraulic buffer shaft comprises a first sleeve, a first shaft core mechanism and a first hydraulic mechanism, the first sleeve can rotate relative to the first shaft core mechanism, the first hydraulic mechanism is used for controlling the relative rotation speed of the first sleeve and the first shaft core mechanism, the first sleeve is rotationally connected with the first mounting seat, one end of the first shaft core mechanism extends out of the first sleeve and is fixedly connected with the first mounting seat, the second mounting seat is arranged on the second fixing seat in a front-back adjustable manner, the second mounting seat is provided with a second mounting groove, and one side of the first sleeve is rotationally connected with the first mounting seat and the other side of the second sleeve extends into the first mounting groove and is fixedly connected with the second mounting seat.

As a preferable scheme of the utility model, the connecting component comprises a first connecting piece, a convex rocker arm, a concave rocker arm and a second connecting piece, wherein the first connecting piece is sleeved and fixed on the first sleeve, the first connecting piece is rotationally connected with one side of the convex rocker arm, the middle part of the convex rocker arm is rotationally connected with the middle part of the concave rocker arm, the other side of the convex rocker arm is rotationally connected with the second mounting seat, one side of the concave rocker arm, which is close to the first connecting piece, is rotationally connected with the first mounting seat, one side of the concave rocker arm, which is far away from the first connecting piece, is rotationally connected with the second connecting piece, and the second connecting piece is rotationally connected with the second mounting seat.

As a preferable scheme of the utility model, the first mounting seat is arranged on the first fixing seat in an up-and-down adjustable manner, the first mounting seat is provided with a vertically arranged adjusting slot hole, and a fixing bolt connected with the first fixing seat is arranged in the adjusting slot hole.

As a preferable scheme of the utility model, the second mounting seat is connected with an adjusting stud, the adjusting stud penetrates through the second mounting seat and is inserted into the second fixing seat, the adjusting stud is in threaded connection with the second mounting seat, and the adjusting stud is in rotary connection with the second fixing seat.

As a preferable scheme of the utility model, the second mounting seat is connected with a locking bolt, and the locking bolt penetrates through the second mounting seat to be in threaded connection with the second fixing seat.

As the preferable scheme of the utility model, the first shaft core mechanism comprises a shaft rod and a spiral driving assembly used for driving the shaft rod to move up and down, the shaft rod is fixedly connected with the first installation seat, the first hydraulic mechanism comprises a fixed oil seal, a movable oil seal, a force storage spring, an oil return spring, an oil filter ring, an oil filter core and a fixed sleeve, the fixed oil seal is fixedly arranged below the spiral driving assembly, the fixed sleeve is fixedly arranged at the lower end of the first sleeve, a through hole which can be used for the shaft rod to pass is arranged in the middle of the fixed oil seal, the lower part of the shaft rod passes through the through hole and is jointed with the first sleeve, a first hydraulic oil cavity is formed between the fixed oil seal and the lower part of the shaft rod, a second hydraulic oil cavity is formed between the lower part of the shaft rod and the fixed sleeve, the force storage spring is positioned in the first hydraulic oil cavity, one end of the force storage spring is connected with the fixed oil seal, the other end of the force storage spring is connected with the lower part of the oil cavity, the hollow cavity is provided with the oil filter core, the upper end of the hollow oil filter ring is communicated with the hollow oil filter core, the hollow oil filter core is fixedly arranged in the hollow oil filter core, and the hollow oil filter core is communicated with the hollow oil filter core, and the hollow oil filter core is fixedly arranged in the hollow oil filter core, and the hollow oil is communicated with the hollow oil filter core.

As a preferable scheme of the utility model, the spiral driving component comprises a spiral pipe, a rotating shaft and a needle roller, wherein the spiral pipe is fixedly sleeved in the first sleeve, the rotating shaft is rotatably sleeved in the spiral pipe, the rotating shaft is provided with a sleeve hole matched and sleeved with the shaft rod, the rotating shaft is fixedly connected with the first mounting seat, a spiral groove is formed in the outer wall of the spiral pipe, a rolling groove is formed in the rotating shaft, and the needle roller is arranged at the upper end of the shaft rod and transversely connected in the spiral groove and the rolling groove in a penetrating manner.

As a preferable scheme of the utility model, the upper end of the rotating shaft extends out of the first sleeve, the first mounting groove is provided with a first connecting hole matched with the upper end of the rotating shaft, the outer side of the upper end of the rotating shaft is provided with an external spline, and the inner side of the first connecting hole is provided with an internal spline matched with the external spline.

As a preferable scheme of the utility model, the first mounting groove is provided with an adjusting groove, the lower end of the fixing sleeve extends out of the first sleeve, the first mounting seat is provided with a second connecting hole rotationally connected with the lower end of the fixing sleeve, the lower end of the fixing sleeve is rotationally connected with the second connecting hole through a bearing, an adjusting screw is arranged in the fixing sleeve, the upper end of the adjusting screw is in threaded connection with the lower end of the oil filter core, the lower end of the adjusting screw rotatably penetrates through the second connecting hole and extends into the adjusting groove, the lower end of the adjusting screw is provided with a flange, and a plurality of adjusting holes are arranged on the periphery of the flange.

As the preferable scheme of the utility model, the hinge further comprises a second hydraulic buffer shaft, the second hydraulic buffer shaft is arranged in the second mounting groove, the second hydraulic buffer shaft comprises a second sleeve, a second core mechanism and a second hydraulic mechanism, the second sleeve is rotationally connected with the second mounting groove, one end of the second core mechanism extends out of the second sleeve and is fixedly connected with the second mounting groove, and one side of the connecting component extending into the second mounting groove is fixedly connected with the second sleeve.

Compared with the prior art, the hidden hinge has the beneficial effects that: when the door is opened and closed, the door leaf drives the second fixing seat and the second mounting seat to rotate, and the first sleeve rotates relative to the first shaft core mechanism under the action of the connecting component, so that the first hydraulic buffer shaft can play a role in buffering in the rotation process, and the effect of hydraulically buffering the opening and closing of the door is realized; one side of the connecting component extends into the first mounting groove, the connecting component is fixedly connected with the first sleeve, the first sleeve is rotationally connected with the first mounting groove, namely, the first sleeve serves as a rotating arm, and the other side of the connecting component extends into the second mounting groove and is connected with the second mounting seat, so that the whole structure is compact, and the whole size of the hinge is reduced.

Drawings

FIG. 1 is a block diagram of the present utility model in a fully open state;

FIG. 2 is an exploded view of the connection assembly of FIG. 1 with a first mount and a second mount;

FIG. 3 is a block diagram of the connection assembly of FIG. 2;

FIG. 4 is an exploded view of the connection assembly of FIG. 2;

FIG. 5 is a block diagram of the present utility model rotated to a position where the first mount and the second mount are vertical;

FIG. 6 is an exploded view of the present utility model in a fully closed state;

FIG. 7 is a schematic view of the connection of the adjusting stud to the second mounting seat and the second fixing seat;

FIG. 8 is a schematic view of the structure of the hydraulic buffer shaft of the present utility model;

FIG. 9 is a schematic structural view of the shaft of the first hydraulic buffer shaft of the present utility model;

FIG. 10 is a schematic view of the structure of the spiral tube of the first hydraulic buffer shaft of the present utility model;

FIG. 11 is a schematic view of the structure of the shaft of the first hydraulic buffer shaft of the present utility model;

FIG. 12 is a block diagram of the present utility model provided with a second hydraulic buffer shaft;

FIG. 13 is an exploded view of the connection of the second hydraulic buffer shaft to the second mount of the present utility model;

In the figure, 1, a first fixing seat; 11. an adjusting groove; 12. an adjusting screw; 121. a flange; 122. an adjustment aperture; 2. a first mount; 21. a first mounting groove; 22. adjusting the slotted hole; 221. a fixing bolt; 23. a first connection hole; 231. an internal spline; 24. a second connection hole; 241. a bearing; 3. the second fixing seat; 4. a second mounting base; 41. a second mounting groove; 42. adjusting the stud; 43. a locking bolt; 5. a first hydraulic buffer shaft; 501. a first sleeve; 502. a shaft lever; 503. fixing an oil seal; 504. a movable oil seal; 505. a force storage spring; 506. an oil return spring; 507. oil-filtering ring;

508. An oil filter core; 509. a fixed sleeve; 510. a first hydraulic oil chamber; 511. a second hydraulic oil chamber;

512. A hollow cavity; 513. an oil passing hole; 514. filtering holes; 515. an oil drain hole; 516. a spiral tube; 517. a rotating shaft; 5171. an external spline; 518. needle roller; 519. rolling grooves; 520. a spiral groove; 6. a connection assembly; 61. a first connector; 62. a convex rocker arm; 63. a concave rocker arm; 64. a second connector; 7. and a second hydraulic buffer shaft.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center," "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the present utility model as indicated by the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 to 11, a hidden hinge according to a preferred embodiment of the present utility model includes a first fixing seat 1, a first mounting seat 2, a second fixing seat 3, a second mounting seat 4, a first hydraulic buffer shaft 5 and a connecting component 6, where the first mounting seat 2 is mounted on the first fixing seat 1 in a manner of being able to adjust up and down, the first mounting seat 2 is provided with a first mounting groove 21, the first hydraulic buffer shaft 5 is mounted in the first mounting groove 21, it should be noted that the first hydraulic buffer shaft 5 is a relatively mature prior art, for example, a hydraulic shaft in the hydraulic hinge is used, the first hydraulic buffer shaft 5 mainly includes a first sleeve 501, a first shaft core mechanism and a first hydraulic mechanism, the first sleeve 501 can rotate relative to the first shaft core mechanism, the first hydraulic mechanism is used for controlling a speed of relative rotation between the first sleeve 501 and the first shaft core mechanism, so that in a rotating process, the first hydraulic mechanism plays a role of buffering, the first sleeve 501 is rotationally connected with the first mounting seat 2, one end of the first shaft core mechanism extends out of the first sleeve 501 and is fixedly connected with the first mounting seat 2, and the second sleeve 501 is fixedly connected with the second sleeve 4 and is mounted on the other side of the second mounting seat 4 and is fixedly connected with the other side of the first mounting seat 4 and is connected with the second mounting seat 4 and is fixedly connected with the other side of the first mounting seat 4 and is mounted on the other side of the first mounting seat 4 and is connected with the second mounting seat 4 and is mounted on the other side of the first mounting seat 4.

The working principle of the embodiment is as follows: when the door is used, the first fixing seat 1 is installed on the door frame, the second fixing seat 3 is installed on the door leaf, grooves are formed in the door frame and the door respectively during installation, the first fixing seat 1 is installed in the grooves of the door frame, and the second fixing seat 3 is installed in the grooves of the door leaf so as to hide the first fixing seat 1 and the second fixing seat 3; when the door is opened and closed, the door leaf drives the second fixing seat 3 and the second mounting seat 4 to rotate, and the first sleeve 501 rotates relative to the first shaft core mechanism under the action of the connecting component 6, so that the first hydraulic buffer shaft 5 can play a role in buffering in the rotating process; one side of the connecting component 6 of the embodiment extends into the first mounting groove 21, the connecting component 6 is fixedly connected with the first sleeve 501, the first sleeve 501 is rotatably connected with the first mounting groove 21, namely, the first sleeve 501 serves as a rotating shaft 517 arm, and the other side of the connecting component 6 extends into the second mounting groove 41 and is connected with the second mounting seat 4, so that the whole structure is compact, and the whole size of the hinge is reduced.

The connecting assembly 6 includes a first connecting member 61, a convex rocker arm 62, a concave rocker arm 63, and a second connecting member 64, where the first connecting member 61 is sleeved and fixed on the first sleeve 501, the first connecting member 61 is rotationally connected with one side of the convex rocker arm 62, the middle of the convex rocker arm 62 is rotationally connected with the middle of the concave rocker arm 63, the other side of the convex rocker arm 62 is rotationally connected with the second mounting seat 4, one side of the concave rocker arm 63 near the first connecting member 61 is rotationally connected with the first mounting seat 2, one side of the concave rocker arm 63 far from the first connecting member 61 is rotationally connected with the second connecting member 64, and the second connecting member 64 is rotationally connected with the second mounting seat 4, so that the connecting assembly 6 occupies a small space and can rotate within a range of 0 ° -180 °.

The first mounting seat 2 is disposed on the first fixing seat 1 in an up-down adjustable manner, the first mounting seat 2 is provided with a vertically disposed adjusting slot 22, a fixing bolt 221 connected with the first fixing seat 1 is disposed in the adjusting slot 22, after the fixing bolt 221 is loosened, the position of the first mounting seat 2 can be adjusted up-down, and after the adjustment is completed, the fixing bolt 221 is fastened again.

The second mounting seat 4 is connected with an adjusting stud 42, the adjusting stud 42 penetrates through the second mounting seat 4 to be inserted into the second fixing seat 3, the adjusting stud 42 is in threaded connection with the second mounting seat 4, the adjusting stud 42 is rotationally connected with the second fixing seat 3, in order to prevent the adjusting stud 42 from displacing during rotation, in this embodiment, the adjusting stud 42 penetrates through the second fixing seat 3, a first limiting block for limiting the adjusting stud 42 to move towards the direction close to the second fixing seat 3 and a second limiting block for limiting the adjusting stud 42 to move away from the second fixing seat 3 are arranged on the adjusting stud 42, the adjusting stud 42 is rotated, and because the adjusting stud 42 is rotationally connected with the second fixing seat 3, the adjusting stud 42 is in threaded connection with the second mounting seat 4, the second mounting seat 4 moves relative to the adjusting stud 42, so that the second mounting seat 4 can be adjusted towards the front side or towards the rear side.

Because second mount pad 4 is connected with second fixing base 3 through adjusting stud 42, therefore second mount pad 4 is in the adjustable state of floating, there is the condition that takes place not hard up, therefore exemplary, second mount pad 4 is connected with locking bolt 43, locking bolt 43 passes second mount pad 4 and second fixing base 3 threaded connection, when locking bolt 43 is connected with second fixing base 3, second mount pad 4 is in the fixed state, can't adjust the front and back position of second mount pad 4 through adjusting bolt, prevent that second mount pad 4 from taking place not hard up, when needs adjusting second mount pad 4, it is enough to loosen locking bolt 43.

The first spindle unit includes a shaft 502 and a screw driving assembly for driving the shaft 502 to move up and down, the shaft 502 is fixedly connected with the first mounting seat 2, the first hydraulic unit includes a fixed oil seal 503, a movable oil seal 504, a force storage spring 505, an oil return spring 506, an oil filter ring 507, an oil filter core 508 and a fixed sleeve 509, the fixed oil seal 503 is fixedly disposed below the screw driving assembly, the fixed sleeve 509 is fixed at the lower end of the first sleeve 501, a through hole through which the shaft 502 can pass is disposed in the middle of the fixed oil seal 503, the lower part of the shaft 502 passes through the through hole and is attached to the first sleeve 501, a first hydraulic oil cavity 510 is formed between the fixed oil seal 503 and the lower part of the shaft 502, a second hydraulic oil cavity 511 is formed between the lower part of the shaft 502 and the fixed sleeve 509, the force storage spring 505 is disposed in the first hydraulic oil cavity 510, one end of the force storage spring 505 is connected with the fixed oil seal 503, the other end of the force storage spring 505 is connected with the lower part of the shaft 502, the shaft 502 is provided with a hollow cavity 512, the fixed sleeve 509 is fixedly connected with the oil seal 513 of the first hydraulic cavity 510, the movable oil seal 504 and the oil filter core 506 is disposed in the hollow cavity 512, the hollow cavity 512 is fixedly connected with the hollow cavity 512, the other end of the hollow core is disposed in the hollow cavity 512 is connected with the hollow cavity 512, and the hollow cavity is disposed in the hollow cavity 512 is connected with the hollow cavity 512, the hollow core 506 is connected with the hollow core 512, which is fixedly connected with the hollow oil core 512, and the hollow core 512 is disposed in the hollow 512, which is connected with the hollow 512, and the hollow 512 is connected with the hollow cavity 512.

When the door is closed, the screw driving assembly drives the shaft rod 502 to move downwards, the volume of the second hydraulic oil cavity 511 caused by the downward movement of the shaft rod 502 is reduced, hydraulic oil is extruded into the hollow cavity 512 from the second hydraulic oil cavity 511, the hydraulic oil pushes the movable oil seal 504 upwards, the compression and storage force of the oil return spring 506 enable the movable oil seal 504 to move upwards, hydraulic oil flows into the first hydraulic oil cavity 510 from the hollow cavity 512 through the oil passing hole 513, when the oil filter core 508 is spliced with the oil filter ring 507, hydraulic oil is extruded into the hollow cavity 512 from the second hydraulic oil cavity 511 through the oil discharging hole 515, when the splicing depth of the oil filter core 508 and the oil filter ring 507 is increased, the oil passing speed of the second hydraulic oil cavity 511 flowing into the first hydraulic oil cavity 510 is correspondingly reduced, the running resistance of the shaft rod 502 is increased, and the door is buffered;

When the door is opened, the screw driving assembly drives the shaft rod 502 to move upwards, the force storage spring 505 compresses the stored force, the shaft rod 502 moves upwards, the volume of the first hydraulic oil cavity 510 is reduced, hydraulic oil is extruded into the hollow cavity 512 from the first hydraulic oil cavity 510, hydraulic oil flows into the second hydraulic oil cavity 511 from the hollow cavity 512 through the oil passing hole 513, the elastic force of the oil return spring 506 is released, the movable oil seal 504 returns to the original position downwards, and therefore the running resistance of the shaft rod 502 is reduced, and the door can be opened quickly and easily.

The screw driving assembly includes a spiral tube 516, a rotating shaft 517 and a needle 518, the spiral tube 516 is fixedly sleeved 509 in the first sleeve 501, the rotating shaft 517 is rotatably sleeved in the spiral tube 516, the rotating shaft 517 is provided with a sleeve hole matched and sleeved with the shaft 502, the rotating shaft 517 is fixedly connected with the first mounting seat 2, a spiral groove 520 is formed on the outer wall of the spiral tube 516, a rolling groove 519 is formed on the rotating shaft 517, the needle 518 is arranged at the upper end of the rotating shaft 517 and transversely penetrates through the spiral groove 520 and the rolling groove 519, when the screw driving assembly is used, an operator rotates a door leaf to drive the rotating shaft 517 to rotate and enable the shaft 502 to rotate through the needle 518, and the rotating shaft 517 rotates to enable the needle 518 to move in the spiral groove 520, so that the shaft 502 moves up and down, and the door is opened and closed.

The upper end of the rotating shaft 517 extends out of the first sleeve 501, the first mounting groove 21 is provided with a first connecting hole 23 matched with the upper end of the rotating shaft 517, an external spline 5171 is arranged on the outer side of the upper end of the rotating shaft 517, an internal spline matched with the external spline 5171 is arranged on the inner side of the first connecting hole 23, the fixed high connection between the rotating shaft 517 and the first mounting seat 2 is achieved, and when the first mounting seat 2 rotates relative to the first sleeve 501, the rotating shaft 517 can be driven to rotate, so that the first hydraulic buffer shaft 5 plays a role in buffering.

As shown in fig. 1, the first mounting groove 21 is provided with an adjusting groove 11, the lower end of the fixing sleeve 509 extends out of the first sleeve 501, the first mounting seat 2 is provided with a second connecting hole 24 rotatably connected with the lower end of the fixing sleeve 509, specifically, the lower end of the fixing sleeve 509 is rotatably connected with the second connecting hole 24 through a bearing, an adjusting screw 12 is arranged in the fixing sleeve 509, the upper end of the adjusting screw 12 is in threaded connection with the lower end of the oil filter core 508, the lower end of the adjusting screw 12 rotatably penetrates through the second connecting hole 24 and extends into the adjusting groove 11, the adjusting screw 12 can enable the oil filter core 508 to move up and down to perform speed regulation, a flange 121 is arranged at the lower end of the adjusting screw 12, a plurality of adjusting holes 122 are arranged at the periphery of the flange, and the flange can rotate by using a pin shaft driving flange 121 matched with the adjusting holes 122, so as to drive the adjusting screw 12 to rotate, when the first sleeve 501 rotates relative to the first shaft core mechanism, the fixing sleeve 509 and the adjusting screw 12 rotate along with the first sleeve 501, and the bearing is arranged to reduce friction force caused by the fact that the sleeve 509 rotates relative to rotate relative to the adjusting screw 12.

12-13, The hinge further comprises a second hydraulic buffer shaft 7, the second hydraulic buffer shaft 7 is installed in the second installation groove 41, the second hydraulic buffer shaft 7 comprises a second sleeve, a second shaft core mechanism and a second hydraulic mechanism, the second sleeve is rotationally connected with the second installation groove 41, one end of the second shaft core mechanism extends out of the second sleeve and is fixedly connected with the second installation groove 41, one side of the connecting component 6 extending into the second installation groove 41 is fixedly connected with the second sleeve, namely, the hinge is provided with two hydraulic buffer shafts, so that the buffer effect is improved, and the connecting component 6 is fixedly connected with the second sleeve due to the fact that the second sleeve is rotationally connected with the second installation groove 41, the second sleeve serves as a rotating arm, and the whole size of the hinge is reduced.

Illustratively, both ends of the first fixing base 1 and both ends of the second fixing base 3 are respectively provided with fixing holes so as to fix the first fixing base 1 and the second fixing base 3.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.

Claims

1. A hidden hinge, its characterized in that: including first fixing base, first mount pad, second fixing base, second mount pad, first hydraulic buffer shaft and coupling assembling, first mount pad can install with adjusting from top to bottom on the first fixing base, first mount pad is equipped with first mounting groove, first hydraulic buffer shaft installs in the first mounting groove, first hydraulic buffer shaft includes first sleeve pipe, first axle core mechanism and first hydraulic mechanism, first sleeve pipe can for first axle core mechanism rotates, first hydraulic mechanism is used for control first sleeve pipe with first axle core mechanism relative pivoted speed, first sleeve pipe with first mount pad rotates to be connected, first axle core mechanism's one end stretches out first sleeve pipe is outer and with first mount pad fixed connection, second mount pad can install with adjusting from front to back on the second fixing base, second mount pad is equipped with the second mounting groove, coupling assembling's one side stretches into in the first mounting groove and with first axle core mechanism relative pivoted speed, first sleeve pipe with second mount pad fixed connection stretches into in the opposite side.

2. The concealed hinge of claim 1, wherein: the connecting assembly comprises a first connecting piece, a convex rocker arm, a concave rocker arm and a second connecting piece, wherein the first connecting piece is sleeved and fixed on the first sleeve, the first connecting piece is rotationally connected with one side of the convex rocker arm, the middle part of the convex rocker arm is rotationally connected with the middle part of the concave rocker arm, the other side of the convex rocker arm is rotationally connected with the second mounting seat, one side of the concave rocker arm, which is close to the first connecting piece, is rotationally connected with the first mounting seat, one side of the concave rocker arm, which is far away from the first connecting piece, is rotationally connected with the second connecting piece, and the second connecting piece is rotationally connected with the second mounting seat.

3. The concealed hinge of claim 1, wherein: the first mounting seat is arranged on the first fixing seat in an up-and-down adjustable manner, the first mounting seat is provided with an adjusting slot hole which is vertically arranged, and a fixing bolt which is connected with the first fixing seat is arranged in the adjusting slot hole.

4. The concealed hinge of claim 1, wherein: the second mounting seat is connected with an adjusting stud, the adjusting stud penetrates through the second mounting seat and is inserted into the second fixing seat, the adjusting stud is in threaded connection with the second mounting seat, and the adjusting stud is in rotary connection with the second fixing seat.

5. The concealed hinge of claim 4, wherein: the second mounting seat is connected with a locking bolt, and the locking bolt penetrates through the second mounting seat to be in threaded connection with the second fixing seat.

6. The concealed hinge of claim 1, wherein: the first axle core mechanism includes the axostylus axostyle and is used for the drive the spiral drive subassembly of axostylus axostyle reciprocates, the axostylus axostyle with first mount pad fixed connection, first hydraulic mechanism includes fixed oil blanket, activity oil blanket, power storage spring, oil return spring, oil filter ring, oil filter core and fixed cover, fixed oil blanket is fixed to be set up spiral drive subassembly's below, fixed cover is fixed first sheathed tube lower extreme, the middle part of fixed oil blanket is equipped with the confession the through-hole that can pass, the lower part of axostylus axostyle pass the through-hole and with first sleeve pipe laminating, fixed oil blanket with form first hydraulic oil chamber between the lower part of axostylus axostyle, the lower part of axostylus axostyle with form the second hydraulic oil chamber between the fixed cover, the power storage spring is located in the first hydraulic oil chamber, the one end of power storage spring with fixed oil blanket is connected, the other end of power storage spring with the lower part of axostylus axostyle is connected, the fixed cover has the cavity, be equipped with on the cavity is used for the intercommunication the cavity with the hollow oil filter core the oil return spring the oil filter core the hollow oil filter core the oil return hole sets up the hollow oil filter core.

7. The concealed hinge of claim 6, wherein: the spiral driving assembly comprises a spiral pipe, a rotating shaft and a needle roller, the spiral pipe is fixedly sleeved in the first sleeve, the rotating shaft is rotatably sleeved in the spiral pipe, the rotating shaft is provided with a trepanning sleeved with the shaft rod in a matched mode, the rotating shaft is fixedly connected with the first mounting seat, a spiral groove is formed in the outer wall of the spiral pipe, a rolling groove is formed in the rotating shaft, and the needle roller is arranged at the upper end of the shaft rod and transversely penetrates through the spiral groove and the rolling groove.

8. The concealed hinge of claim 7, wherein: the upper end of the rotating shaft extends out of the first sleeve, a first connecting hole matched with the upper end of the rotating shaft is formed in the first mounting groove, an external spline is arranged on the outer side of the upper end of the rotating shaft, and an internal spline matched with the external spline is arranged on the inner side of the first connecting hole.

9. The concealed hinge of claim 6, wherein: the first mounting groove is provided with an adjusting groove, the lower end of the fixed sleeve extends out of the first sleeve, the first mounting seat is provided with a second connecting hole rotationally connected with the lower end of the fixed sleeve, the lower end of the fixed sleeve is rotationally connected with the second connecting hole through a bearing, an adjusting screw is arranged in the fixed sleeve, the upper end of the adjusting screw is in threaded connection with the lower end of the oil filter core, the lower end of the adjusting screw rotationally penetrates through the second connecting hole and extends into the adjusting groove, a flange is arranged at the lower end of the adjusting screw, and a plurality of adjusting holes are arranged on the periphery of the flange.

10. The concealed hinge of claim 1, wherein: the hydraulic buffer device comprises a first hydraulic buffer shaft, and is characterized by further comprising a first hydraulic buffer shaft, wherein the first hydraulic buffer shaft is installed in a first installation groove, the first hydraulic buffer shaft comprises a first sleeve, a first shaft core mechanism and a first hydraulic mechanism, the first sleeve is rotationally connected with the first installation groove, one end of the first shaft core mechanism extends out of the first sleeve and is fixedly connected with the first installation groove, and one side of the connecting component extending into the first installation groove is fixedly connected with the first sleeve.