CN220365452U - Concealed three-dimensional adjusting hinge and burglarproof door - Google Patents

Abstract

The utility model provides a hidden three-dimensional adjusting hinge and a burglary-resisting door, and relates to the technical field of hidden door hinges, comprising a door leaf component, a threshold component and a swing arm component, wherein the door leaf component is connected with the threshold component through the swing arm component; the door leaf part assembly comprises a door leaf shell, a door leaf and a door leaf adjusting piece, wherein the door leaf shell is connected with the door leaf through the door leaf adjusting piece, and the door leaf adjusting piece is used for adjusting the distance between the door leaf shell and the door leaf; the threshold portion assembly comprises a threshold shell, a threshold and a threshold adjusting piece, wherein the threshold shell is connected with the threshold through the threshold adjusting piece, and the threshold adjusting piece is used for adjusting the distance between the threshold shell and the threshold. The utility model relieves the technical problems of the prior art that the hinge has smaller adjustment direction to the door gap, and the sliding friction is adopted in the guide groove in the hinge to cause larger friction force and larger noise.

Description

Concealed three-dimensional adjusting hinge and burglarproof door

Technical Field

The utility model relates to the technical field of hidden door hinges, in particular to a hidden three-dimensional adjusting hinge and a burglarproof door.

Background

The door hinge is a device for opening and closing a door to a door frame, and is classified into a structure in which the door is opened and closed in a left and right push-pull manner with one side as a starting point and a structure in which the door is opened and closed in an up and down push-pull manner with an upper end as a starting point.

The door hinge is arranged on the door body to realize the opening and closing of the door body, and various hinges are developed in the directions of convenient use, multifunction, high strength, silence and the like.

Most of the existing hinges on the market realize two-dimensional adjustment, and the adjustment range of part of hinges with three-dimensional adjustment on door gaps is smaller; and the existing hinge inner guide groove mostly adopts sliding friction, so that the friction force caused when the door is opened and closed is larger.

Disclosure of Invention

The utility model aims to provide a hidden three-dimensional adjusting hinge so as to solve the technical problems that in the prior art, the adjusting direction of the hinge to a door gap is small, and the friction force is large due to the fact that sliding friction is adopted in a guide groove in the hinge.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

in a first aspect, the utility model provides a hidden three-dimensional adjusting hinge, which comprises a door leaf component, a threshold component and a swing arm component, wherein the door leaf component is connected with the threshold component through the swing arm component;

the door leaf part assembly comprises a door leaf shell, a door leaf and a door leaf adjusting piece, wherein the door leaf shell is connected with the door leaf through the door leaf adjusting piece, and the door leaf adjusting piece is used for adjusting the distance between the door leaf shell and the door leaf;

the threshold part assembly comprises a threshold shell, a threshold and a threshold adjusting piece, wherein the threshold shell is connected with the threshold through the threshold adjusting piece, and the threshold adjusting piece is used for adjusting the distance between the threshold shell and the threshold.

Further, the door leaf adjusting piece comprises a door leaf adjusting screw and a first nut, and the screw and the first nut are connected with the door leaf shell;

one end of the door leaf adjusting screw penetrates through the door leaf to be connected with a screw hole at the bottom of the door leaf shell, and the door leaf adjusting screw is used for adjusting the distance between the door leaf shell and the door leaf through rotation.

Further, the threshold adjusting piece comprises a threshold adjusting screw and a second nut, and the threshold shell are movably connected through the threshold adjusting screw and the second nut;

one end of the threshold adjusting screw penetrates through the threshold and the threshold shell to be connected with the second nut, and the threshold adjusting screw is used for adjusting the distance between the threshold shell and the threshold through rotation.

Further, the swing arm assembly comprises an upper swing arm and a middle swing arm, one end of the upper swing arm is connected with the door leaf assembly, and the other end of the upper swing arm is connected with the threshold assembly;

one end of the middle swing arm is connected with the door leaf part assembly, the other end of the middle swing arm is connected with the threshold part assembly, and the middle swing arm is connected with the upper swing arm in a rotating mode.

Further, the door leaf part assembly further comprises a first bracket, the first bracket is connected with the door leaf shell, and a first arc-shaped guide groove is formed in the first bracket;

one end of the upper swing arm is provided with a first swing arm shaft, two ends of the first swing arm shaft are respectively provided with a first shaft sleeve, and the first shaft sleeves are in sliding connection with the first arc-shaped guide grooves.

Further, a second swing arm shaft is arranged at one end, far away from the first swing arm shaft, of the upper swing arm, and the second swing arm shaft is rotatably connected with the threshold part assembly.

Further, the threshold part assembly further comprises a second bracket, the second bracket is connected with the threshold shell, and a second arc-shaped guide groove is formed in the second bracket;

one end of the middle swing arm is provided with a fourth swing arm shaft, two ends of the fourth swing arm shaft are respectively provided with a second shaft sleeve, and the second shafts are in sliding connection with the second arc-shaped guide grooves.

Further, a third swing arm shaft is arranged at one end of the middle swing arm, which is far away from the fourth swing arm shaft, and the third swing arm shaft is rotatably connected with the door leaf part assembly.

Further, the hidden three-dimensional adjusting hinge further comprises a rotating shaft, two ends of the rotating shaft are connected with the upper swing arm, and the upper swing arm is connected with the middle swing arm in a rotating mode through the rotating shaft.

In a second aspect, the present utility model provides a security door comprising a concealed three-dimensional adjusting hinge as described in any one of the previous embodiments.

The utility model can realize the following beneficial effects:

in a first aspect, the utility model provides a hidden three-dimensional adjusting hinge, which comprises a door leaf component, a threshold component and a swing arm component, wherein the door leaf component is connected with the threshold component through the swing arm component; the door leaf part assembly comprises a door leaf shell, a door leaf and a door leaf adjusting piece, wherein the door leaf shell is connected with the door leaf through the door leaf adjusting piece, and the door leaf adjusting piece is used for adjusting the distance between the door leaf shell and the door leaf; the threshold portion assembly comprises a threshold shell, a threshold and a threshold adjusting piece, wherein the threshold shell is connected with the threshold through the threshold adjusting piece, and the threshold adjusting piece is used for adjusting the distance between the threshold shell and the threshold.

In the utility model, the door leaf part assembly is connected with the threshold part assembly through the swing arm assembly, the distance between the door leaf shell and the door leaf can be adjusted through the door leaf adjusting piece, and the distance between the door leaf shell and the threshold can be adjusted through the threshold adjusting piece in the same way; i.e. in this way an adjustment of the door requiring a door seam of 2mm-8mm can be achieved.

Compared with the prior art, the hidden three-dimensional adjusting hinge provided by the utility model can change the distance between the door leaf shell and the door leaf by adjusting the door leaf adjusting piece, and similarly, the distance between the door leaf shell and the door leaf can be changed by adjusting the door leaf adjusting piece; thereby realizing the adjustment of the door with the door seam of 2mm-8 mm.

In conclusion, the utility model at least relieves the technical problems of the prior art that the hinge has smaller adjustment azimuth to the door gap and the sliding friction is adopted in the guide groove in the hinge to cause larger friction force.

In addition, a second aspect of the embodiment of the utility model also provides an anti-theft door, which comprises the hidden three-dimensional adjusting hinge provided by the first aspect; the anti-theft door provided by the embodiment of the utility model comprises the hidden three-dimensional adjusting hinge provided by the first aspect, so that the anti-theft door provided by the embodiment of the utility model can achieve all the beneficial effects achieved by the hidden three-dimensional adjusting hinge provided by the first aspect.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic front view of a hidden three-dimensional adjusting hinge according to an embodiment of the present utility model;

fig. 2 is a schematic perspective view of a hidden three-dimensional adjusting hinge according to an embodiment of the present utility model;

fig. 3 is a schematic perspective view of an internal structure of a hidden three-dimensional adjusting hinge according to an embodiment of the present utility model.

Icon: 1-a door leaf assembly; 11-door leaf shell; 12-door leaf; 13-door leaf adjusting screws; 14-a first nut; 15-a first scaffold; 151-a first arcuate guide slot; 2-a threshold portion assembly; 21-a threshold shell; 22-threshold; 23-a second scaffold; 231-a second arcuate guide slot; 24-threshold adjusting screws; 31-upper swing arms; 311-a first swing arm shaft; 312-first sleeve; 313-a second swing arm shaft; 32-a middle swing arm; 321-a third swing arm shaft; 322-fourth swing arm shaft; 323-second sleeve.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in place when the inventive product is used, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Some embodiments of the present utility model are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.

Example 1

The embodiment provides a hidden three-dimensional adjusting hinge, referring to fig. 1, the hidden three-dimensional adjusting hinge comprises a door leaf component 1, a threshold component 2 and a swing arm component, wherein the door leaf component 1 is connected with the threshold component 2 through the swing arm component; the door leaf part assembly 1 comprises a door leaf shell 11, a door leaf 12 and a door leaf adjusting piece, wherein the door leaf shell 11 is connected with the door leaf 12 through the door leaf adjusting piece, and the door leaf adjusting piece is used for adjusting the distance between the door leaf shell 11 and the door leaf 12; the threshold part assembly 2 includes a threshold shell 21, a threshold 22, and a threshold adjusting member, the threshold shell 21 being connected to the threshold 22 through the threshold adjusting member, the threshold adjusting member being for adjusting the distance between the threshold shell 21 and the threshold 22.

The embodiment of the utility model at least relieves the technical problems that the adjusting direction of the hinge to the door gap is smaller and the friction force is larger due to the sliding friction of the guide groove in the hinge in the prior art.

In the embodiment of the utility model, the door leaf assembly 1 is connected with the threshold assembly 2 through a swing arm assembly, the distance between the door leaf and the door leaf 12 can be adjusted by the door leaf adjusting piece through the door leaf shell 11, and similarly, the distance between the door leaf and the threshold 22 can be adjusted by the door threshold shell 21 through the door threshold adjusting piece; i.e. in this way an adjustment of the door requiring a door seam of 2mm-8mm can be achieved.

Compared with the prior art, the hidden three-dimensional adjusting hinge provided by the embodiment of the utility model can change the distance between the door leaf shell 11 and the door leaf 12 by adjusting the door leaf adjusting piece, and similarly, change the distance between the door leaf shell 21 and the door leaf 22 by adjusting the door leaf adjusting piece; and then the door with the door seam of 2mm-8mm is adjusted, so that the door with the door seam of 2mm-8mm is adjusted with greater applicability.

In an alternative implementation manner of the present embodiment, referring to fig. 1 or 3, the door leaf adjusting member includes a door leaf adjusting screw 13 and a first nut 14, and the door leaf adjusting screw 13 and the first nut 14 are movably connected with the door leaf housing 11; one end of a door leaf adjusting screw 13 penetrates through the door leaf 12 to be connected with a screw hole at the bottom of the door leaf shell 11, and the door leaf adjusting screw 13 is used for adjusting the distance between the door leaf shell 11 and the door leaf 12 by rotating.

Specific: the first nut 14 is connected with the door shell 11; one end of a door adjusting screw 13 passes through the door 12 and is connected with a first nut 14, and the door adjusting screw 13 is used for adjusting the distance between the door shell 11 and the door 12 by rotating. Preferably, the first nut 14 is connected with the door shell 11, and the door adjusting screw 13 penetrates through the door 12 and then is connected with a screw hole at the bottom of the door shell 11, and the distance between the door shell 11 and the door 12 is changed by rotating the door adjusting screw 13 so as to change the distance between the door adjusting screw 13 and the first nut 14.

In an alternative implementation of the present embodiment, referring to fig. 2 or 3, the threshold adjusting member includes a threshold adjusting screw 24 and a second nut, and the threshold 22 and the threshold shell 21 are movably connected through the threshold adjusting screw 24 and the second nut; one end of the threshold adjusting screw 24 is connected to the second nut through the threshold 22 and the threshold shell 21, and the threshold adjusting screw 24 is used for adjusting the distance between the threshold shell 21 and the threshold 22 by rotating.

Specific: the threshold 22 and the threshold shell 21 are movably connected with a second nut through a threshold adjusting screw 24; the threshold housing 21 is moved closer to or farther from the threshold 22 by turning the threshold adjusting screw 24, thereby adjusting the spacing between the threshold housing 21 and the threshold 22.

In an alternative implementation of the present embodiment, referring to fig. 1 or 2, the swing arm assembly includes an upper swing arm 31 and a middle swing arm 32, one end of the upper swing arm 31 is connected to the door leaf assembly 1, and the other end is connected to the threshold assembly 2; one end of the middle swing arm 32 is connected with the door leaf part assembly 1, the other end is connected with the threshold part assembly 2, and the middle swing arm 32 is rotatably connected with the upper swing arm 31.

Specific: one end of the upper swing arm 31 is connected with the door leaf part assembly 1, and the other end is connected with the threshold part assembly 2; one end of the middle swing arm 32 is connected with the door leaf part assembly 1, the other end is connected with the threshold part assembly 2, and the middle swing arm 32 is rotatably connected with the upper swing arm 31. Preferably, the upper swing arm 31 is provided with two monomers, the two monomers are connected through a connecting piece, the two monomers are respectively located at two sides of the middle swing arm 32, the door leaf part assembly 1 is in rotary connection with the threshold part assembly 2 through the upper swing arm 31 and the middle swing arm 32, and further, the middle swing arm 32 is in rotary connection with the upper swing arm 31 through a rotary shaft.

Further, referring to fig. 3, the door leaf assembly 1 further includes a first bracket 15, the first bracket 15 is connected with the door leaf shell 11, and the first bracket 15 is provided with a first arc-shaped guide groove 151; one end of the upper swing arm 31 is provided with a first swing arm shaft 311, both ends of the first swing arm shaft 311 are provided with a first shaft sleeve 312, and the first shaft sleeve 312 is slidably connected with the first arc-shaped guide groove 151.

Specific: the first bracket 15 is connected with the door leaf shell 11, the first bracket 15 is accommodated in an accommodating space surrounded by the door leaf shell 11, and two first arc-shaped guide grooves 151 are oppositely arranged; and the two ends of the first swing arm shaft 311 connected with the upper swing arm 31 are respectively provided with a first shaft sleeve 312, and the first shaft sleeves 312 on two sides are respectively and slidably arranged in the first arc-shaped guide groove 151, so that the first swing arm shaft 311 moves along the arc-shaped guide groove of the first arc-shaped guide groove 151, and further the tail end of the upper swing arm 31 moves along the first arc-shaped guide groove 151 of the door leaf shell 11 through the first swing arm shaft 311 and the first shaft sleeve 312, and the use effect of controlling the opening and closing degree is realized.

Further, a second swing arm shaft 313 is provided at an end of the upper swing arm 31 remote from the first swing arm shaft 311, and the second swing arm shaft 313 is rotatably connected to the threshold assembly 2.

Specific: the end of the upper swing arm 31 far away from the first swing arm shaft 311 is provided with a second swing arm shaft 313, and the second swing arm shaft 313 is rotationally connected with the threshold part assembly 2; preferably, the upper swing arm 31 is rotatably connected with the door sill assembly 2 through the second swing arm shaft 313, so that two ends of the upper swing arm 31 are rotatably connected with the door leaf assembly 1 and the door sill assembly 2 respectively, and the opening and closing of the door body are completed.

In an alternative implementation manner of the present embodiment, the threshold part assembly 2 further includes a second bracket 23, where the second bracket 23 is connected to the threshold shell 21, and the second bracket 23 is provided with a second arc-shaped guide groove 231; a fourth swing arm shaft 322 is arranged at one end of the middle swing arm 32, a second shaft sleeve 323 is arranged at two ends of the fourth swing arm shaft 322, and the second shaft sleeve 323 is in sliding connection with the second arc-shaped guide groove 231.

Specific: the second bracket 23 is connected with the threshold shell 21, and the second bracket 23 is accommodated in an accommodating space surrounded by the threshold shell 21, and two second arc-shaped guide grooves 231 are oppositely arranged; and the second sleeves 323 are respectively arranged at the two ends of the fourth swing arm shaft 322 connected with the middle swing arm 32, and the second sleeves 323 at the two sides are respectively and slidably arranged in the second arc-shaped guide groove 231, so that the fourth swing arm shaft 322 moves along the arc-shaped guide groove of the second arc-shaped guide groove 231, and further the tail end of the middle swing arm 32 moves along the second arc-shaped guide groove 231 of the threshold shell 21 through the fourth swing arm shaft 322 and the second sleeves 323, and the use effect of controlling the opening and closing degree is achieved.

Further, referring to fig. 3, a third swing arm shaft 321 is provided at an end of the middle swing arm 32 remote from the fourth swing arm shaft 322, and the third swing arm shaft 321 is rotatably connected to the door section assembly 1.

Specific: a third swing arm shaft 321 is arranged at one end of the middle swing arm 32 far away from the fourth swing arm shaft 322, and the third swing arm shaft 321 is rotationally connected with the door leaf assembly 1; preferably, the middle swing arm 32 is rotatably connected with the door leaf assembly 1 through the third swing arm shaft 321, so that two ends of the middle swing arm 32 are respectively rotatably connected with the door leaf assembly 1 and the threshold assembly 2, and the opening and closing of the door body are completed.

In an alternative implementation manner of this embodiment, referring to fig. 1 or fig. 3, the hidden three-dimensional adjusting hinge further includes a rotation shaft, two ends of the rotation shaft are connected with the upper swing arm 31, and the upper swing arm 31 is rotatably connected with the middle swing arm 32 through the rotation shaft.

Specific: both ends of the rotating shaft are connected with the upper swing arm 31, and the upper swing arm 31 is rotationally connected with the middle swing arm 32 through the rotating shaft; preferably, the middle swing arm 32 is disposed between the two units of the upper swing arm 31, and the rotation shaft penetrates through the upper swing arm 31 and the middle swing arm 32, so that the upper swing arm 31 is rotatably connected with the middle swing arm 32.

Example two

The present embodiment provides an anti-theft door comprising a hidden three-dimensional adjustment hinge provided in any one of the alternative embodiments of the first embodiment.

Because the burglary-resisting door provided by the embodiment includes the hidden three-dimensional adjusting hinge described in the first embodiment, the burglary-resisting door provided by the embodiment can achieve all the beneficial effects achieved by the hidden three-dimensional adjusting hinge in the first embodiment, and the specific structure and the effects can be achieved by referring to each optional or preferred implementation mode in the first embodiment.

Finally, it should be noted that: in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are only required to be seen with each other; the above embodiments in the present specification are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (10)

1. The hidden three-dimensional adjusting hinge is characterized by comprising a door leaf component (1), a threshold component (2) and a swing arm component, wherein the door leaf component (1) is connected with the threshold component (2) through the swing arm component;

the door leaf part assembly (1) comprises a door leaf shell (11), a door leaf (12) and a door leaf adjusting piece, wherein the door leaf shell (11) is connected with the door leaf (12) through the door leaf adjusting piece, and the door leaf adjusting piece is used for adjusting the distance between the door leaf shell (11) and the door leaf (12);

the threshold part assembly (2) comprises a threshold shell (21), a threshold (22) and a threshold adjusting piece, wherein the threshold shell (21) is connected with the threshold (22) through the threshold adjusting piece, and the threshold adjusting piece is used for adjusting the distance between the threshold shell (21) and the threshold (22).

2. A hidden three-dimensional adjusting hinge according to claim 1, characterized in that the door leaf adjusting member comprises a door leaf adjusting screw (13) and a first nut (14), both the door leaf adjusting screw (13) and the first nut (14) being connected with the door leaf housing (11);

one end of the door leaf adjusting screw (13) penetrates through the door leaf (12) to be connected with a screw hole at the bottom of the door leaf shell (11), and the door leaf adjusting screw (13) is used for adjusting the distance between the door leaf shell (11) and the door leaf (12) through rotation.

3. A hidden three-dimensional adjusting hinge according to claim 1, characterized in that the threshold adjusting member comprises a threshold adjusting screw (24) and a second nut, the threshold (22) and the threshold housing (21) being movably connected by the threshold adjusting screw (24) and the second nut;

one end of the threshold adjusting screw (24) penetrates through the threshold (22) and the threshold shell (21) to be connected with the second nut, and the threshold adjusting screw (24) is used for adjusting the distance between the threshold shell (21) and the threshold (22) through rotation.

4. A hidden three-dimensional adjusting hinge according to claim 1, characterized in that the swing arm assembly comprises an upper swing arm (31) and a middle swing arm (32), one end of the upper swing arm (31) is connected with the door leaf assembly (1), and the other end is connected with the threshold part assembly (2);

one end of the middle swing arm (32) is connected with the door leaf part assembly (1), the other end of the middle swing arm is connected with the threshold part assembly (2), and the middle swing arm (32) is rotatably connected with the upper swing arm (31).

5. A hidden three-dimensional adjusting hinge according to claim 4, wherein the door leaf assembly (1) further comprises a first bracket (15), the first bracket (15) is connected with the door leaf shell (11), and the first bracket (15) is provided with a first arc-shaped guide groove (151);

one end of the upper swing arm (31) is provided with a first swing arm shaft (311), two ends of the first swing arm shaft (311) are respectively provided with a first shaft sleeve (312), and the first shaft sleeves (312) are in sliding connection with the first arc-shaped guide grooves (151).

6. The concealed three-dimensional adjusting hinge according to claim 5, wherein the end of the upper swing arm (31) remote from the first swing arm shaft (311) is provided with a second swing arm shaft (313), and the second swing arm shaft (313) is rotatably connected with the threshold part assembly (2).

7. The hidden three-dimensional adjusting hinge according to claim 4, wherein the threshold part assembly (2) further comprises a second bracket (23), the second bracket (23) is connected with the threshold shell (21), and the second bracket (23) is provided with a second arc-shaped guide groove (231);

one end of the middle swing arm (32) is provided with a fourth swing arm shaft (322), two ends of the fourth swing arm shaft (322) are respectively provided with a second shaft sleeve (323), and the second shafts (323) are in sliding connection with the second arc-shaped guide grooves (231).

8. The hidden three-dimensional adjusting hinge according to claim 7, wherein a third swing arm shaft (321) is provided at an end of the middle swing arm (32) away from the fourth swing arm shaft (322), and the third swing arm shaft (321) is rotatably connected to the door leaf assembly (1).

9. The hidden three-dimensional adjusting hinge according to claim 4, further comprising a rotation shaft, wherein both ends of the rotation shaft are connected with the upper swing arm (31), and the upper swing arm (31) is rotatably connected with the middle swing arm (32) through the rotation shaft.

10. An anti-theft door comprising a concealed three-dimensional adjusting hinge according to any one of claims 1 to 9.