Hidden hinge and door applying same

Abstract

The utility model discloses a hidden type hinge and discloses a door with the hidden type hinge, and the hidden type hinge is characterized in that a damping assembly is installed in a first hinge seat; an elastic component is mounted in the second hinge seat; the hinge group is hinged between the first hinge seat and the second hinge seat; the first supporting rod is installed on the hinge set, and a first inclined guide face structure is arranged between the first supporting rod and the damping assembly. The second supporting rod is installed on the hinge set, and a second inclined guide face structure is arranged between the second supporting rod and the elastic assembly. The first hinge base, the second hinge base and the hinge set are ingeniously linked, the elastic potential energy of the elastic assembly is matched with the damping effect of the damping assembly, and automatic door closing and buffering closing are achieved when the door leaf is switched from the opening state to the closing state.

Description

Technical Field

[0001] The utility model relates to the technical field of hinges, in particular to a hidden hinge and a door using the same. Background Art

[0002] Some doors are installed on the door frame through hinges. When closing the door, there is no buffer. If the door is closed too hard or there is wind, the door will produce a lot of impact noise. Some doors will have a separate gas spring device installed on the outside to achieve a buffering effect. However, the installation position of the gas spring device is independent of the hinge installation, which takes up additional installation space. Moreover, when only the gas spring device is installed, the door cannot be closed automatically, causing inconvenience in use. Utility Model Content

[0003] The utility model aims to solve one of the above-mentioned technical problems in the related art at least to a certain extent. To this end, the utility model proposes a hidden hinge.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] The utility model also provides a door with the hidden hinge.

[0006] According to the first aspect of the present invention, the hidden hinge comprises:

[0007] A first hinge seat, wherein a damping assembly is installed in the first hinge seat;

[0008] A second hinge seat, wherein an elastic component is installed in the second hinge seat;

[0009] A hinge group, wherein the hinge group is hinged between the first hinge seat and the second hinge seat;

[0010] A first support rod is mounted on the hinge assembly, and a first inclined guide surface structure is provided between the first support rod and the damping assembly. When the hinge assembly rotates relative to the first hinge seat, the first support rod can slide relative to the first hinge seat and drive the damping assembly to extend and retract and be positioned at a current position through the first inclined guide surface structure;

[0011] The second support rod is installed on the hinge group, and a second inclined guide surface structure is provided between the second support rod and the elastic component. When the hinge group rotates relative to the second hinge seat, the second support rod can slide relative to the second hinge seat and drive the elastic component to retract and position at the current position through the second inclined guide surface structure.

[0012] The hidden hinge according to the embodiment of the utility model has at least the following beneficial effects: through the cooperation of the first inclined guide surface, the second inclined guide surface, the first support rod and the second support rod, the first hinge seat, the second hinge seat and the hinge group are cleverly linked, and the elastic potential energy of the elastic component and the damping effect of the damping component cooperate with each other to achieve automatic closing and buffered closing when the door leaf switches from an open state to a closed state.

[0013] According to some embodiments of the present invention, the axial direction of the first support rod is parallel to the axial direction of the second support rod, the telescopic direction of the damping assembly is consistent with the axial direction of the first support rod, and the telescopic direction of the elastic assembly is consistent with the axial direction of the second support rod;

[0014] The hinge axis of the hinge group and the first hinge seat is parallel to the first support rod, and the hinge axis of the hinge group and the second hinge seat is parallel to the second support rod.

[0015] According to some embodiments of the utility model, the damping assembly includes a first guide block and a damper, the first guide block is slidably installed in the first hinge seat, the damper is installed between the first guide block and the first hinge seat, the first inclined guide surface structure includes a first inclined surface and a first flat end surface arranged on the first guide block, and the end of the first support rod can slide along the first inclined surface and the first flat end surface.

[0016] According to some embodiments of the utility model, the elastic component includes a second guide block and an elastic member, the second guide block is slidably installed in the second hinge seat, the elastic member is installed between the second guide block and the second hinge seat, the second guide block is provided with a second inclined surface and a second flat end surface, and a linkage member is also installed on the second hinge seat, the second support rod is slidably connected to the linkage member, the second support rod can push the linkage member to rotate, and the linkage member can slide along the second inclined surface and the second flat end surface when rotating, and the second inclined surface, the second flat end surface and the linkage member at least constitute a part of the second inclined guide surface structure.

[0017] According to some embodiments of the utility model, the linkage member is provided with a third inclined surface and a third flat end surface, the third inclined surface is parallel to the second inclined surface and can abut against each other, and the third flat end surface is parallel to the second flat end surface and can abut against each other.

[0018] According to some embodiments of the utility model, the linkage member is rotatably mounted on the second hinge seat via a first rotating shaft, a slide groove is provided on the linkage member, the second support rod is passed through the slide groove, and the first rotating shaft is parallel to the second support rod.

[0019] According to some embodiments of the utility model, the hinge group includes a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, one end of the first connecting rod is hinged to the first hinge seat through a second rotating shaft, the first support rod is installed on the first connecting rod, the other end of the first connecting rod is hinged to one end of the second connecting rod through a third rotating shaft, the other end of the second connecting rod is hinged to the second hinge seat through a fourth rotating shaft, one end of the third connecting rod is hinged to the second hinge seat through a fifth rotating shaft, the second support rod is installed on the third connecting rod, the other end of the third connecting rod is hinged to one end of the fourth connecting rod through a sixth rotating shaft, the other end of the fourth connecting rod is hinged to the first hinge seat through a seventh rotating shaft, the middle part of the second connecting rod and the middle part of the fourth connecting rod are hinged through an eighth rotating shaft, and the second rotating shaft, the third rotating shaft, the fourth rotating shaft, the fifth rotating shaft, the sixth rotating shaft, the seventh rotating shaft, the eighth rotating shaft, the first support rod and the second support rod are parallel to each other.

[0020] According to some embodiments of the utility model, grooves are provided on the first hinge seat and the second hinge seat, and the two sides of the hinge group are respectively hinged in the two grooves, and an arc groove is opened on a group of relative groove walls of each groove, and the first support rod and the second support rod are inserted into the corresponding arc grooves and can slide along the arc direction of the arc groove.

[0021] According to some embodiments of the present invention, the first hinge seat and the second hinge seat both define an installation cavity, and the damping assembly and the elastic assembly are installed in the corresponding installation cavity.

[0022] The door according to the second embodiment of the utility model is provided with a hidden hinge.

[0023] The door according to the embodiment of the utility model has at least the following beneficial effects: the door is automatically closed with buffering and silence by utilizing the hidden hinge.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] FIG1 is a schematic diagram of the structure of a hidden hinge in an open state;

[0027] FIG2 is a schematic diagram of the structure of the hidden hinge in a closed state;

[0028] FIG3 is a schematic diagram of FIG1 from another perspective;

[0029] FIG4 is a schematic diagram of FIG1 from another viewing angle;

[0030] FIG5 is a schematic diagram of the internal structure of FIG1;

[0031] FIG6 is a schematic diagram of FIG5 from another viewing angle;

[0032] FIG. 7 is a schematic structural diagram of a hinge assembly.

[0033] Figure markings: first hinge seat 100; groove 110; arc groove 111; installation cavity 120; damping assembly 200; first guide block 210; first inclined surface 211; first flat end surface 212; damper 220; second hinge seat 300; elastic assembly 400; second guide block 410; second inclined surface 411; second flat end surface 412; elastic member 420; hinge group 500; first connecting rod 510; second rotating shaft 511; third rotating shaft 512; second connecting rod 520; fourth rotating shaft 521; third connecting rod 530; fifth rotating shaft 531; sixth rotating shaft 532; fourth connecting rod 540; seventh rotating shaft 541; eighth rotating shaft 550; first support rod 600; second support rod 700; linkage member 800; third inclined surface 810; third flat end surface 820; first rotating shaft 830; slide groove 840. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0035] The utility model relates to a hidden hinge, comprising a first hinge seat 100, a second hinge seat 300, a hinge group 500, a first support rod 600 and a second support rod 700.

[0036] As shown in Fig. 1, Fig. 3, Fig. 5 and Fig. 6, the first hinge seat 100 and the second hinge seat 300 can be set as a frame structure. A damping assembly 200 is installed inside the first hinge seat 100, and the damping assembly 200 can include structural parts such as gas springs to produce damping buffer. An elastic assembly 400 is installed inside the second hinge seat 300, and the elastic assembly 400 can include components that can be elastically deformed, such as spiral springs, torsion springs, and springs. The two ends of the hinge group 500 are respectively hinged on the first hinge seat 100 and the second hinge seat 300, and the hinge group 500 can rotate relative to the first hinge seat 100 and the second hinge seat 300, that is, the first hinge seat 100 and the second hinge seat 300 swing relative to each other through the hinge group 500. The structure of the hinge group 500 can adopt a combination of multiple connecting rod components, or use a chain plate or other structures. The first support rod 600 and the second support rod 700 are long rod-shaped, and the first support rod 600 is installed on the hinge group 500. The first support rod 600 extends into the first hinge seat 100, and a first inclined guide surface structure is provided between the first support rod 600 and the damping assembly 200. When the first hinge seat 100 and the hinge assembly 500 rotate relative to each other, the first support rod 600 slides relative to the first hinge seat 100 around the hinge joint between the first hinge seat 100 and the hinge assembly 500, and at this time, the first support rod 600 is axially immobile relative to the hinge assembly 500. In this embodiment, the sliding direction of the first support rod 600 relative to the first hinge seat 100 is perpendicular to the axial direction of the first support rod 600. At this time, the end of the first support rod 600 can slide along the first inclined guide surface structure, and the first inclined guide surface structure has at least an inclined surface, and the inclined direction of the inclined surface intersects with the axial direction of the first support rod 600. When the end of the first support rod 600 slides along the first inclined guide surface structure, it drives the damping assembly 200 to expand and contract to produce a damping effect on the sliding process of the first support rod 600 relative to the first hinge seat 100. The first inclined guide surface structure can also be provided with a platform. When the end of the first support rod 600 abuts against the platform, the damping assembly 200 does not expand and contract, thereby positioning the damping assembly 200 at the current position. The second support rod 700 is installed on the hinge assembly 500, and the second support rod 700 extends into the second hinge seat 300. A second inclined guide surface structure is provided between the second support rod 700 and the elastic assembly 400. The second inclined guide surface structure can be set to be similar to the structure of the first inclined guide surface structure, and the second inclined guide surface structure also has at least an inclined surface. When the second hinge seat 300 and the hinge assembly 500 rotate relative to each other, the second support rod 700 slides relative to the second hinge seat 300 around the junction of the hinge assembly 500 and the second hinge seat 300 in a direction perpendicular to the axial direction of the second support rod 700, and the second support rod 700 is immovable in the axial direction. Through the second inclined guide surface structure, the second support rod 700 drives the elastic component 400 to expand and contract during the sliding process relative to the second hinge seat 300.The second inclined guide surface structure may be provided with a platform, and the second support rod 700 abuts against the platform directly or through other components, so that the elastic component 400 is positioned at the current compression position.

[0037] In actual use, the hidden hinge is applied to the door. The door includes a door frame and a door leaf installed on the door opening. The first hinge seat 100 can be installed on the door frame, and the second hinge seat 300 is installed on the door leaf. The door leaf and the door frame are opened and closed by the hinge group 500. The hidden hinge has an open (door opening) state and a closed (door closing) state. As shown in Figure 1, the hidden hinge is in the open state, at which time the damping component 200 is in an extended state, and the elastic component 400 is positioned in a compressed position with the cooperation of the second support rod 700 and the second inclined guide surface structure. When the hidden hinge switches from the open state to the closed state, the door leaf is swung, and the elastic component 400 is elastically reset and gradually extended. During the extension process of the elastic component 400, the second support rod 700 is pushed to slide relative to the second hinge seat 300 through the second inclined guide surface structure, thereby driving the hinge group 500 and the first support rod 600 to move relative to the first hinge seat 100. The elastic potential energy of the elastic component 400 is transmitted to the damping component 200, and the first support rod 600 pushes the damping component 200 to gradually shrink through the first inclined guide surface structure. As shown in FIG2 , under the damping action of the damping component 200, the hidden hinge slowly switches to the closed state, thereby achieving the effect of buffering the door closing. When the hidden hinge switches from the closed state to the open state, the external force applied by the user on the door leaf pushes the second hinge seat 300 and the hinge group 500 to rotate relative to each other, the elastic component 400 elastically compresses and stores energy, and the damping component 200 switches to the extended state. Through the cooperation of the first inclined guide surface, the second inclined guide surface, the first support rod 600 and the second support rod 700, the first hinge seat 100, the second hinge seat 300 and the hinge group 500 are cleverly linked, and the elastic potential energy of the elastic component 400 and the damping action of the damping component 200 cooperate with each other to achieve automatic closing and buffering closure when the door leaf switches from the open state to the closed state.

[0038] In some embodiments of the utility model, as shown in FIG. 5 and FIG. 6 , the axial direction of the first support rod 600 is parallel to the axial direction of the second support rod 700. In the direction shown in the figure, the first support rod 600 and the second support rod 700 are vertically installed on the hinge group 500. The telescopic direction of the damping assembly 200 is consistent with the axial direction of the first support rod 600, that is, the damping assembly 200 is telescopic up and down. The telescopic direction of the damping assembly 200 is consistent with the axial direction of the first support rod 600, and the telescopic direction of the elastic assembly 400 is consistent with the axial direction of the second support rod 700, that is, the elastic member 420 is telescopic up and down. The hinge axis of the hinge group 500 and the first hinge seat 100 is parallel to the first support rod 600, and the hinge axis of the hinge group 500 and the second hinge seat 300 is parallel to the second support rod 700. During the door opening and closing process, the expansion and contraction directions of the damping component 200 and the elastic component 400 are consistent, and the expansion and contraction direction is the same as the axial direction of the door leaf rotation, which reduces the lateral space occupation, and the elastic component 400 and the damping component 200 have high movement stability.

[0039] In some specific embodiments of the utility model, as shown in FIG. 3 and FIG. 5 , the damping assembly 200 includes a first guide block 210 and a damper 220. The damper 220 may be a gas spring. The first guide block 210 is slidably mounted in the first hinge seat 100, and a mounting cavity 120 may be defined in the first hinge seat 100, and the first guide block 210 is mounted in the mounting cavity 120. The sliding direction of the first guide block 210 is the same as the telescopic direction of the damper 220. One end of the damper 220 abuts against the inner wall of the first hinge seat 100, and the other end abuts against the first guide block 210. The first inclined guide surface structure is arranged on a side of the first guide block 210 away from the damper 220, and the first inclined guide surface structure includes a first inclined surface 211 and a first flat end surface 212. The first inclined surface 211 is inclined to the axial direction of the first support rod 600, and the first flat end surface 212 is perpendicular to the axial direction of the first support rod 600. When the first support rod 600 slides relative to the first hinge seat 100, the end of the first support rod 600 abuts against the first inclined surface 211 or the first inclined surface 211. When the first support rod 600 abuts against the first inclined surface 211 and slides toward the first flat end surface 212, the first guide block 210 is pushed to move and the damper 220 is compressed until the end of the first support rod 600 slides against the first flat end surface 212, at which time the damper 220 contracts and remains in the minimum compression position. When the end of the first support rod 600 leaves the first flat end surface 212 and slides back to the first inclined surface 211, the damper 220 extends and pushes the first support rod 600 and the first hinge seat 100 to slide relative to each other through the first inclined surface 211.

[0040] In some specific embodiments of the utility model, as shown in FIG. 3 and FIG. 6 , the elastic component 400 includes a second guide block 410 and an elastic member 420. The second guide block 410 is slidably mounted in the second hinge seat 300, and a mounting cavity 120 can be defined in the second hinge seat 300, and the second guide block 410 is mounted in the mounting cavity 120. The moving direction of the second guide block 410 is consistent with the telescopic direction of the elastic member 420. In this embodiment, the elastic member 420 is a coil spring. One end of the elastic member 420 abuts against the inner wall of the second hinge seat 300, and the other end abuts against the second guide block 410. A second inclined surface 411 and a second flat end surface 412 are provided on the side of the second guide block 410 away from the elastic member 420. The second inclined surface 411 is inclined to the axial direction of the second support rod 700, and the second flat end surface 412 is perpendicular to the axis of the second support rod 700. A linkage member 800 is also installed on the second hinge seat 300. The linkage member 800 can rotate relative to the second hinge seat 300. The second support rod 700 is slidably connected to the linkage member 800, and the linkage member 800 can be rotatably installed in the second hinge seat 300 through the first rotating shaft 830, and the axial direction of the first rotating shaft 830 is parallel to the axial direction of the second support rod 700. A sliding groove 840 is provided on the linkage member 800, and the second support rod 700 is penetrated by the sliding groove 840, and the extension direction of the sliding groove 840 is perpendicular to the axial direction of the second support rod 700. When the second support rod 700 slides relative to the second hinge seat 300, the linkage member 800 is driven to rotate in the second hinge seat 300 through the sliding groove 840. The linkage member 800 abuts against the second guide block 410 and slides along the second inclined surface 411 and the second flat end surface 412. The second support rod 700 is linked with the second guide block 410 through the linkage member 800. The second inclined surface 411, the second flat end surface 412 and the linkage member 800 at least constitute a part of the second inclined guide surface structure. When the linkage member 800 abuts against the second flat end surface 412, the elastic member 420 is in and remains in a compressed state. When the linkage member 800 rotates, it can enter the second inclined surface 411 from the second flat end surface 412, and at this time, the elastic member 420 elastically resets and pushes the linkage member 800 to slide relatively along the second inclined surface 411.

[0041] Furthermore, the linkage member 800 is provided with a third inclined surface 810 and a third flat end surface 820. The third inclined surface 810 is parallel to the second inclined surface 411 and can abut against each other, and the third flat end surface 820 is parallel to the second flat end surface 412 and can abut against each other. The third inclined surface 810 and the second inclined surface 411 have the same inclination direction, which can ensure the stability of the linkage member 800 and the second guide block 410 when sliding relative to each other. When the second flat end surface 412 abuts against the third flat end surface 820, the elastic member 420 is placed in and maintained at the maximum compression position.

[0042] In some specific embodiments of the present utility model, as shown in FIG. 1 and FIG. 7 , the hinge assembly 500 includes a first connecting rod 510, a second connecting rod 520, a third connecting rod 530 and a fourth connecting rod 540. The first connecting rod 510 and the third connecting rod 530 can be set to an arc shape, and the second connecting rod 520 and the fourth connecting rod 540 can be set to an L shape. One end of the first connecting rod 510 is hinged to the first hinge seat 100 through a second rotating shaft 511. The first support rod 600 is installed on the first connecting rod 510, and the first support rod 600 is axially immovable on the first connecting rod 510. The first connecting rod 510 can rotate around the second rotating shaft 511, thereby driving the first support rod 600 to slide relative to the first hinge seat 100. The other end of the first connecting rod 510 is hinged to one end of the second connecting rod 520 through a third rotating shaft 512. The other end of the second connecting rod 520 is hinged to the second hinge seat 300 through a fourth rotating shaft 521. One end of the third link 530 is hinged to the second hinge seat 300 through the fifth rotating shaft 531, and the second support rod 700 is installed on the third link 530, and the second support rod 700 is immovable relative to the third link 530 in the axial direction. The third link 530 can rotate relative to the second hinge seat 300 around the fifth rotating shaft 531, thereby driving the second support rod 700 to slide relative to the second hinge seat 300. The other end of the third link 530 is hinged to one end of the fourth link 540 through the sixth rotating shaft 532, and the other end of the fourth link 540 is hinged to the first hinge seat 100 through the seventh rotating shaft 541. The middle part of the second link 520 and the middle part of the fourth link 540 are hinged through the eighth rotating shaft 550. The first link 510, the second link 520, the third link 530 and the fourth link 540 are in a stacked distribution, so that the overall structure of the hinge assembly 500 is more compact and more stable when rotating. The second rotating shaft 511 , the third rotating shaft 512 , the fourth rotating shaft 521 , the fifth rotating shaft 531 , the sixth rotating shaft 532 , the seventh rotating shaft 541 , the eighth rotating shaft 550 , the first supporting rod 600 , and the second supporting rod 700 are parallel to each other.

[0043] In some embodiments of the utility model, as shown in FIG. 1 and FIG. 4 , a groove 110 is provided on the first hinge seat 100 and the second hinge seat 300. The two sides of the hinge group 500 are respectively hinged in the two grooves 110. An arc groove 111 is provided on a group of upper and lower opposite groove walls of each groove 110. The first support rod 600 and the second support rod 700 are inserted into the corresponding arc groove 111 and can slide along the arc direction of the arc groove 111. Two symmetrical arc grooves 111 are provided in the same groove 110 to facilitate the insertion of the first support rod 600 and the second support rod 700. As shown in FIG. 2 , when the hidden hinge is in a closed state, the hinge group 500 is hidden in the two grooves 110 as a whole, achieving a closed door hiding effect.

[0044] In the description of the present invention, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0047] In the description of this specification, the description of reference terms such as "some specific embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A hidden hinge, characterized in that: include: A first hinge seat (100), wherein a damping assembly (200) is installed in the first hinge seat (100); A second hinge seat (300), wherein an elastic component (400) is installed in the second hinge seat (300); A hinge assembly (500), the hinge assembly (500) being hinged between the first hinge seat (100) and the second hinge seat (300); a first support rod (600) mounted on the hinge assembly (500), wherein a first inclined guide surface structure is provided between the first support rod (600) and the damping assembly (200), and when the hinge assembly (500) rotates relative to the first hinge seat (100), the first support rod (600) can slide relative to the first hinge seat (100) and drive the damping assembly (200) to extend and retract and to be positioned at a current position through the first inclined guide surface structure; A second support rod (700) is mounted on the hinge assembly (500), and a second inclined guide surface structure is provided between the second support rod (700) and the elastic component (400). When the hinge assembly (500) rotates relative to the second hinge seat (300), the second support rod (700) can slide relative to the second hinge seat (300) and drive the elastic component (400) to extend and retract and to be positioned at a current position via the second inclined guide surface structure.

2. The hidden hinge according to claim 1, characterized in that: The axial direction of the first support rod (600) is parallel to the axial direction of the second support rod (700), the telescopic direction of the damping component (200) is consistent with the axial direction of the first support rod (600), and the telescopic direction of the elastic component (400) is consistent with the axial direction of the second support rod (700); The hinge axis of the hinge group (500) and the first hinge seat (100) is parallel to the first support rod (600), and the hinge axis of the hinge group (500) and the second hinge seat (300) is parallel to the second support rod (700).

3. The hidden hinge according to claim 1 or 2, characterized in that: The damping assembly (200) comprises a first guide block (210) and a damper (220); the first guide block (210) is slidably mounted in the first hinge seat (100); the damper (220) is mounted between the first guide block (210) and the first hinge seat (100); the first inclined guide surface structure comprises a first inclined surface (211) and a first flat end surface (212) arranged on the first guide block (210); and the end of the first support rod (600) is capable of sliding along the first inclined surface (211) and the first flat end surface (212).

4. The hidden hinge according to claim 1 or 2, characterized in that: The elastic component (400) comprises a second guide block (410) and an elastic member (420); the second guide block (410) is slidably mounted in the second hinge seat (300); the elastic member (420) is mounted between the second guide block (410) and the second hinge seat (300); the second guide block (410) is provided with a second inclined surface (411) and a second flat end surface (412); a linkage member (800) is also mounted on the second hinge seat (300); the second support rod (700) is slidably connected to the linkage member (800); the second support rod (700) can push the linkage member (800) to rotate; when the linkage member (800) rotates, it can slide along the second inclined surface (411) and the second flat end surface (412); the second inclined surface (411), the second flat end surface (412) and the linkage member (800) at least constitute a part of the second inclined guide surface structure.

5. The hidden hinge according to claim 4, characterized in that: The linkage member (800) is provided with a third inclined surface (810) and a third flat end surface (820); the third inclined surface (810) is parallel to the second inclined surface (411) and can abut against each other; the third flat end surface (820) is parallel to the second flat end surface (412) and can abut against each other.

6. The hidden hinge according to claim 4, characterized in that: The linkage member (800) is rotatably mounted on the second hinge seat (300) via a first rotating shaft (830); a slide groove (840) is provided on the linkage member (800); the second support rod (700) is inserted into the slide groove (840); and the first rotating shaft (830) is parallel to the second support rod (700).

7. The hidden hinge according to claim 1 or 2, characterized in that: The hinge assembly (500) comprises a first connecting rod (510), a second connecting rod (520), a third connecting rod (530) and a fourth connecting rod (540); one end of the first connecting rod (510) is hinged to the first hinge seat (100) via a second rotating shaft (511); the first support rod (600) is mounted on the first connecting rod (510); the other end of the first connecting rod (510) is hinged to one end of the second connecting rod (520) via a third rotating shaft (512); the other end of the second connecting rod (520) is hinged to the second hinge seat (300) via a fourth rotating shaft (521); one end of the third connecting rod (530) is hinged to the second hinge seat (300) via a fifth rotating shaft (531); the second support rod (700) The hinge is mounted on the third connecting rod (530), the other end of the third connecting rod (530) is hinged to one end of the fourth connecting rod (540) via a sixth rotating shaft (532), the other end of the fourth connecting rod (540) is hinged to the first hinge seat (100) via a seventh rotating shaft (541), the middle part of the second connecting rod (520) and the middle part of the fourth connecting rod (540) are hinged via an eighth rotating shaft (550), and the second rotating shaft (511), the third rotating shaft (512), the fourth rotating shaft (521), the fifth rotating shaft (531), the sixth rotating shaft (532), the seventh rotating shaft (541), the eighth rotating shaft (550), the first support rod (600) and the second support rod (700) are parallel to each other.

8. The hidden hinge according to claim 7, characterized in that: The first hinge seat (100) and the second hinge seat (300) are both provided with grooves (110), and the two sides of the hinge group (500) are respectively hinged in the two grooves (110), and a group of opposite groove walls of each groove (110) are provided with arc grooves (111), and the first support rod (600) and the second support rod (700) are inserted into the corresponding arc grooves (111) and can slide along the arc direction of the arc groove (111).

9. The hidden hinge according to claim 1, characterized in that: The first hinge seat (100) and the second hinge seat (300) both define a mounting cavity (120), and the damping assembly (200) and the elastic assembly (400) are mounted in the corresponding mounting cavity (120).

10. A door, characterized in that: The invention relates to a concealed hinge according to any one of claims 1 to 9.

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