Hidden hinge and door group applying same

Abstract

The utility model discloses a hidden hinge and discloses a door group with the hidden hinge, and the hidden hinge comprises a first main body and a second main body which are rotatably connected through a rotating shaft; the driving rod is fixed on the first main body parallel to the rotating shaft; the damping assembly comprises a linkage piece and a damping piece, the damping assembly is installed in the second body, the linkage piece is provided with an inclined sliding face and a stop face, the driving rod can slide along the inclined sliding face and the stop face, and the driving rod can push the linkage piece to move in the axial direction of the driving rod when moving on the inclined sliding face. The damping part has damping acting force on the linkage part in the direction opposite to the thrust direction of the driving rod on the linkage part. The elastic piece can generate elastic torsion; the elastic piece pushes the first main body to automatically reset towards the closed state in the first direction, and the first main body slowly rotates under the action of the damping piece in the reset process, so that the effect of buffering closing is achieved, and noise caused by large impact in the closing process is avoided.

Description

Technical Field

[0001] The utility model relates to a hinge device, in particular to a hidden hinge and a door group using the hidden hinge. Background Art

[0002] Most of the current single-door shower screens or other doors are opened and closed by rotating, that is, using hinges or rotating shafts. For ease of use, some doors need to be equipped with an automatic closing function. Traditionally, a spring is set inside the hinge used to connect the door and the door frame to drive the door to close automatically, but the automatic closing process is fast, and a large collision noise will be generated at the moment of closing the door, affecting the user experience. 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 set with the hidden hinge.

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

[0007] A first body and a second body, wherein the first body and the second body are rotatably connected via a rotating shaft;

[0008] A driving rod, wherein the driving rod is fixed on the first body parallel to the rotating shaft;

[0009] A damping assembly, the damping assembly comprising a linkage member and a damping member, the damping assembly being installed in the second body, the linkage member being provided with an inclined sliding surface and a stop surface, the driving rod being able to slide along the inclined sliding surface and the stop surface, the driving rod being able to push the linkage member to move along the axial direction of the driving rod when moving on the inclined sliding surface, the damping member having a damping force on the linkage member in a direction opposite to the thrust direction of the driving rod on the linkage member;

[0010] An elastic member, wherein the elastic member can generate an elastic torsion force, and the elastic torsion force can drive the first body to rotate in a first direction relative to the second body, and when the first direction is rotated, the driving rod slides on the inclined sliding surface toward the stop surface.

[0011] According to the hidden hinge of the embodiment of the utility model, there are at least the following beneficial effects: the elastic member pushes the first body to automatically reset to the closed state along the first direction, and the first body rotates slowly during the reset process under the action of the damping member, thereby achieving a buffered closing effect and avoiding a large impact during the closing process and generating noise.

[0012] According to some embodiments of the present invention, a first installation cavity is provided inside the second body, the linkage member is slidably installed in the first installation cavity, and the damping member is installed between the linkage member and the first installation cavity.

[0013] According to some embodiments of the utility model, a second installation cavity is provided on the second body; a connecting rod is provided on the first body, and the connecting rod extends into and is rotatably connected in the second installation cavity through the rotating shaft.

[0014] According to some embodiments of the utility model, the second mounting cavity has an insertion port, the connecting rod passes through the insertion port and extends into the second mounting cavity, a latching protrusion is provided on the side edge of the insertion port, the latching protrusion is located on the path of the first body rotating in the opposite direction to the first direction, and the connecting rod can abut against the latching protrusion.

[0015] According to some embodiments of the utility model, the surface of the second mounting cavity opposite to the insertion port is a limiting surface, the connecting rod includes a first rod portion and a second rod portion, the first rod portion extends from the first main body, the second rod portion is bent and extended from the end of the first rod portion, the second rod portion is rotatably installed in the second mounting cavity through the rotating shaft, the limiting surface is located on the rotation path of the first main body relative to the second main body along the first direction, and the side wall of the second rod portion can abut against the limiting surface.

[0016] According to some embodiments of the utility model, a guide groove is provided on the second body, the guide groove is opened around the rotating shaft, and the driving rod is passed through the guide groove.

[0017] According to some embodiments of the utility model, a third installation cavity is provided on the second main body, the third installation cavity is provided with the guide groove, at least part of the rod body of the driving rod is located in the third installation cavity, the elastic member is installed in the third installation cavity, and the elastic member abuts between the inner wall of the third installation cavity and the driving rod.

[0018] According to some embodiments of the present invention, the second body is synchronously provided with the guide groove at each position in the axial direction of the driving rod.

[0019] According to some embodiments of the present invention, two groups of the damping assemblies and two elastic members are installed on the second body, and each of the damping assemblies and each of the elastic members are distributed and installed on the second body along the axial direction of the driving rod.

[0020] The door set according to the second embodiment of the utility model includes a door body, a door frame and a hidden hinge, and one of the first body and the second body is installed on the door body, and the other is installed on the door frame.

[0021] The door assembly according to the embodiment of the utility model has at least the following beneficial effects: the door body automatically returns to the closed state under the action of the elastic member, and slowly closes under the cooperation of the driving rod and the damping assembly, making it convenient for users to enter and exit.

[0022] 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

[0023] 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:

[0024] Figure 1 It is a schematic diagram of the structural breakdown of the hidden hinge;

[0025] Figure 2 It is a schematic diagram of the hidden hinge in a closed state;

[0026] Figure 3 It is a schematic diagram of the hidden hinge in the open state;

[0027] Figure 4 yes Figure 3 A cross-sectional view of the internal structure;

[0028] Figure 5 is a schematic diagram of the structure of the second subject;

[0029] Figure 6 yes Figure 2 Schematic diagram of some structures;

[0030] Figure 7 yes Figure 3 Schematic diagram of part of the structure.

[0031] Figure numerals: first body 100; connecting rod 110; first rod portion 111; second rod portion 112; second body 200; first mounting cavity 210; second mounting cavity 220; insertion opening 221; locking protrusion 222; limiting surface 223; guide groove 230; third mounting cavity 240; rotating shaft 300; driving rod 400; damping assembly 500; linkage member 510; inclined sliding surface 511; stop surface 512; damping member 520; elastic member 600. DETAILED DESCRIPTION

[0032] 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.

[0033] The utility model relates to a hidden hinge, which comprises a first main body 100 , a second main body 200 , a driving rod 400 , a damping assembly 500 and an elastic member 600 .

[0034] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the first body 100 and the second body 200 are connected in rotation, and the connection between the two is connected by a rotating shaft 300. The driving rod 400 can be a long straight rod structure. The driving rod 400 can be installed on the first body 100, and the driving rod 400 can be fixed relative to the first body 100 by means of threading, threading, etc. The driving rod 400 extends into the second body 200 at the same time. When the first body 100 and the second body 200 rotate relative to each other, the driving rod 400 moves synchronously with the first body 100. The damping assembly 500 includes a linkage 510 and a damping member 520. The linkage 510 can be a block-shaped component, and the linkage 510 is provided with an inclined sliding surface 511 and a stop surface 512. The inclined sliding surface 511 is connected with the stop surface 512. The inclined sliding surface 511 is set at an angle, which can be a plane inclination or an arc surface. The stop surface 512 is set as a plane. In the direction shown in the figure, the first body 100 and the second body 200 are placed vertically, and the axial direction of the rotating shaft 300 is vertically oriented. The damping assembly 500 is installed in the second body 200, and the damping assembly 500 is located at the end of the driving rod 400. A group of damping assemblies 500 can be set in the second body 200, and one group of damping assemblies 500 is aligned with one end of the driving rod 400. It is also possible to set two groups of damping assemblies 500 in the second body 200. The two groups of damping assemblies 500 are respectively located at the upper and lower ends of the driving rod 400. The end of the driving rod 400 can abut on the inclined sliding surface 511 and the stop surface 512 of the linkage 510 and slide. The stop surface 512 is horizontal, and the axial direction of the driving shaft can be perpendicular to the stop surface 512, and the inclination direction of the inclined sliding surface 511 has an oblique angle with the axial direction of the driving shaft. The linkage member 510 can move along the axial direction of the drive shaft in the second body 200, so that the linkage member 510 can move up and down in the illustrated direction. The damping member 520 can be a spring, a pneumatic damper, a hydraulic damper, etc. The damping member 520 can directly abut between the second body 200 and the linkage member 510, or it can indirectly act between the second body 200 and the linkage member 510 through other components. In this example, a blind hole can be opened on the side of the linkage member 510 opposite to the stop surface 512, one end of the damping member 520 is inserted into and abuts in the blind hole, and the other end abuts on the inner wall of the second body 200. The damping member 520 has a damping force on the linkage member 510. When the drive rod 400 rotates relative to the second body 200 with the first body 100, the drive rod 400 does not move in the axial direction, that is, the drive rod 400 does not move up and down. For the damping assembly 500 installed below the driving rod 400, when the first body 100 rotates, the lower end of the driving rod 400 abuts against the inclined sliding surface 511 and slides upward along the inclined sliding surface 511 toward the stop surface 512, and the corresponding rotation direction of the first body 100 is defined as the first direction. At this time, the driving rod 400 exerts a downward thrust on the linkage member 510 below.The corresponding damping member 520 is compressed and stores energy by the downward movement of the linkage member 510, thereby generating an upward damping force on the linkage member 510, slowing down the speed at which the linkage member 510 slides downward, that is, slowing down the rotation speed of the first body 100 relative to the second body 200 in the first direction. When the end of the driving rod 400 slides to the stop surface 512, the damping force of the damping member 520 reaches the maximum, and at this time the end of the driving rod 400 can stay on the stop surface 512, as shown. Figure 2 and Figure 6 As shown, in this position, the first body 100 is in a closed state relative to the second body 200. The elastic member 600 can be installed between the first body 100 and the second body 200, or between the drive rod 400 and the second body 200, etc., and the position is not limited. The elastic member 600 is mainly used to directly or indirectly apply elastic torque to the first body 100, and the elastic torque drives the first body 100 to rotate along the first direction. The elastic member 600 can be a member that can generate elastic torque, such as a torsion spring. The direction in which the first body 100 rotates relative to the second body 200 in the opposite direction to the first direction is defined as the second direction. As shown in FIG. Figure 3 and Figure 7 As shown, when the first body 100 is rotated in the second direction by an external force, the end of the driving rod 400 slides from the stop surface 512 to the inclined sliding surface 511, and the linkage member 510 located on the lower side moves upward under the energy release action of the damping member 520, and the inclined sliding surface 511 and the end of the driving rod 400 slide relative to each other to the low point of the inclined sliding surface 511. At this time, the elastic member 600 is compressed to store energy. At this time, the first body 100 is in an open state relative to the second body 200. When the first body 100 loses the external force, the elastic member 600 elastically resets, pushing the first body 100 to automatically reset to the closed state along the first direction. The reset process rotates slowly under the action of the damping member 520, thereby achieving the effect of buffering the closing and avoiding the large impact during the closing process and generating noise.

[0035] Hidden hinges can be applied to products such as cabinets and doors that require relative flipping operations. In this embodiment, the hidden hinge is applied to a door group. The door group also includes a door body and a door frame. One of the first main body 100 and the second main body 200 is installed on the door body, and the other is installed on the door frame. When the first main body 100 and the second main body 200 rotate relative to each other along a first direction, the door body and the door frame rotate relative to each other synchronously, and the closed state of the hidden hinge is the closed state of the door body relative to the door frame, and the open state of the hidden hinge is the open state of the door body relative to the door frame. The door body is pulled by an external force to switch to the open state. When the external force is lost, the door body automatically resets to the closed state under the action of the elastic member 600, and slowly closes under the cooperation of the driving rod 400 and the damping assembly 500, which is convenient for users to enter and exit.

[0036] In some embodiments of the present invention, Figure 1 , Figure 4 and Figure 5 As shown, a first installation cavity 210 is provided inside the second body 200. The first installation cavity 210 can be set so that its transverse cross section (a cross section perpendicular to the driving rod 400) is adapted to the linkage member 510. The linkage member 510 is installed in the first installation cavity 210, and the linkage member 510 is limited in the transverse direction and guided in the vertical direction through the first installation cavity 210. The driving rod 400 extends into the first installation cavity 210, and the damping member 520 is installed between the linkage member 510 and the first installation cavity 210. The linkage member 510 slides up and down in the first installation cavity 210 under the action of the driving rod 400 and the damping member 520. The number of the first installation cavities 210 is determined according to the number of the damping assemblies 500. If two groups of damping assemblies 500 are set, two first installation cavities 210 are set on the second body 200. The two first installation cavities 210 are distributed up and down relative to the driving rod 400, and one group of damping assemblies 500 is correspondingly installed in one installation cavity.

[0037] In some specific embodiments of the utility model, the second main body 200 is provided with a second installation cavity 220. The second installation cavity 220 can be opened in the middle position of the second main body 200. The first main body 100 is provided with a connecting rod 110, and the connecting rod 110 can be integrally formed on the first main body 100, or can be installed on the first main body 100 as an independent component. The connecting rod 110 extends into the second installation cavity 220, and the connecting rod 110 and the second installation cavity 220 are connected by a rotating shaft 300. The upper and lower ends of the rotating shaft 300 can be passed through the upper and lower sides of the second installation cavity 220 for fixing. When the first main body 100 rotates relative to the second main body 200, the connecting rod 110 can be hidden in the second installation cavity 220. Among them, the second installation cavity 220 has an insertion port 221, and the connecting rod 110 extends into the second installation cavity 220 through the insertion port 221. The side walls of the second main body 200 adjacent to both sides of the insertion port 221 can also be set to an opening shape. A latching protrusion 222 is provided on the edge of the insertion port 221. The latching protrusion 222 is located on the latching protrusion 222, and the latching protrusion 222 can be cylindrical and protrude from the edge of the insertion port 221. The latching protrusion 222 is located on the rotation path of the first body 100 along the second direction. When the first body 100 switches to the open state, the connecting rod 110 can abut against the latching protrusion 222 when the first body 100 rotates to a certain position relative to the second body 200, thereby limiting the stroke position of the first body 100 and the second body 200 in the open state. Among them, the second installation cavity 220 can be vertically arranged between the two first installation cavities 210.

[0038] Further, such as Figure 1 and Figure 6As shown, the surface of the second installation cavity 220 opposite to the insertion port 221 is a limiting surface 223. The connecting rod 110 includes a first rod portion 111 and a second rod portion 112. The first body 100 may be in the shape of a straight plate. The first rod portion 111 extends from the first body 100, and the first rod portion 111 may be arranged perpendicular to the first body 100. The second rod portion 112 extends from the end of the first rod portion 111 by bending. The angle between the first rod portion 111 and the second rod portion 112 may be set to a right angle or other angles. The second rod portion 112 is rotatably installed in the second installation cavity 220 via the rotating shaft 300. The limiting surface 223 is located on the rotation path of the first body 100 relative to the second body 200 along the first direction. When the first body 100 rotates to a closed state along the first direction, the side wall of the second rod portion 112 abuts against the limiting surface 223, and the contact between the two limits the stroke position of the first body 100 relative to the second body 200 along the first direction.

[0039] In some embodiments of the present invention, Figure 1 and Figure 5 As shown, the second body 200 is provided with a guide groove 230. The guide groove 230 is opened around the rotating shaft 300 in an arc shape. The driving rod 400 is inserted into the guide groove 230. When the driving rod 400 moves with the first body 100, the driving rod 400 slides along the guide groove 230. Among them, the second body 200 is provided with a third installation cavity 240, and the upper and lower side walls of the third installation cavity 240 are provided with guide grooves 230. The driving rod 400 penetrates into the second body 200, and at least part of the rod body of the driving rod 400 is located in the third installation cavity 240. The elastic member 600 is installed in the third installation cavity 240. Screws can be locked on the upper and lower side walls of the third installation cavity 240, and the elastic member 600 is sleeved on the screws. The elastic member 600 uses a torsion spring, and one end of the elastic member 600 extends out to abut against the inner wall of the third installation cavity 240, and the other end extends out to abut against the driving rod 400. When the driving rod 400 slides along the guide groove 230 , the elastic member 600 uses the inner wall of the third installation cavity 240 as a fixed support point, and is squeezed by the driving rod 400 to be twisted and compressed, or elastically reset to push the driving rod 400 .

[0040] The second body 200 is synchronously provided with guide grooves 230 at various positions in the axial direction of the driving rod 400. That is, guide grooves 230 are provided at positions where the driving rod 400 is inserted from top to bottom relative to the second body 200, so as to facilitate the installation of the driving rod 400.

[0041] In some embodiments of the utility model, two groups of damping assemblies 500 and two elastic members 600 are installed on the second body 200. Each damping assembly 500 and each elastic member 600 are distributed and installed on the second body 200 along the axial direction of the driving rod 400. Correspondingly, two first installation cavities 210 and a third installation cavity 240 are provided on the second body 200, and the second body 200 is provided with a first installation cavity 210, a third installation cavity 240, a second installation cavity 220, a third installation cavity 240 and a first installation cavity 210 from top to bottom. The damping assemblies 500 and the elastic members 600 are distributed along the vertical direction of the second body 200, which can reduce the horizontal space occupied by the second body 200 and better adapt to the installation of door bodies or door frames of different thicknesses.

[0042] 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.

[0043] 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 body (100) and a second body (200), wherein the first body (100) and the second body (200) are rotatably connected via a rotating shaft (300); a driving rod (400), the driving rod (400) being fixed on the first main body (100) parallel to the rotating shaft (300); A damping assembly (500), the damping assembly (500) comprising a linkage member (510) and a damping member (520), the damping assembly (500) being mounted in the second main body (200), the linkage member (510) being provided with an inclined sliding surface (511) and a stop surface (512), the driving rod (400) being capable of sliding along the inclined sliding surface (511) and the stop surface (512), the driving rod (400) being capable of pushing the linkage member (510) to move along the axial direction of the driving rod (400) when moving on the inclined sliding surface (511), the damping member (520) exerting a damping force on the linkage member (510) in a direction opposite to the thrust direction of the driving rod (400) on the linkage member (510); An elastic member (600) capable of generating an elastic torsion force, wherein the elastic torsion force can drive the first body (100) to rotate in a first direction relative to the second body (200), and when rotating in the first direction, the driving rod (400) slides on the inclined sliding surface (511) toward the stop surface (512).

2. The hidden hinge according to claim 1, characterized in that: A first installation cavity (210) is provided inside the second main body (200), the linkage member (510) is slidably installed in the first installation cavity (210), and the damping member (520) is installed between the linkage member (510) and the first installation cavity (210).

3. The hidden hinge according to claim 1, characterized in that: A second installation cavity (220) is provided on the second main body (200); a connecting rod (110) is provided on the first main body (100), and the connecting rod (110) extends into and is rotatably connected to the second installation cavity (220) via the rotating shaft (300).

4. The hidden hinge according to claim 3, characterized in that: The second installation cavity (220) has an insertion opening (221), and the connecting rod (110) extends into the second installation cavity (220) through the insertion opening (221). A latching protrusion (222) is provided on the side edge of the insertion opening (221), and the latching protrusion (222) is located on a path of the first main body (100) that rotates in the opposite direction to the first direction, and the connecting rod (110) can abut against the latching protrusion (222).

5. The hidden hinge according to claim 4, characterized in that: The surface of the second mounting cavity (220) opposite to the insertion opening (221) is a limiting surface (223); the connecting rod (110) comprises a first rod portion (111) and a second rod portion (112); the first rod portion (111) extends from the first main body (100); the second rod portion (112) is bent and extended from the end of the first rod portion (111); the second rod portion (112) is rotatably mounted in the second mounting cavity (220) via the rotating shaft (300); the limiting surface (223) is located on a rotation path of the first main body (100) relative to the second main body (200) along the first direction; and the side wall of the second rod portion (112) can abut against the limiting surface (223).

6. The hidden hinge according to claim 1, characterized in that: The second main body (200) is provided with a guide groove (230), the guide groove (230) is opened around the rotating shaft (300), and the driving rod (400) is inserted into the guide groove (230).

7. The hidden hinge according to claim 6, characterized in that: A third installation cavity (240) is provided on the second main body (200), the third installation cavity (240) is provided with the guide groove (230), at least a part of the rod body of the driving rod (400) is located in the third installation cavity (240), the elastic member (600) is installed in the third installation cavity (240), and the elastic member (600) abuts between the inner wall of the third installation cavity (240) and the driving rod (400).

8. The hidden hinge according to claim 6, characterized in that: The second main body (200) is synchronously provided with the guide groove (230) at each position in the axial direction of the driving rod (400).

9. The hidden hinge according to claim 1, characterized in that: Two groups of the damping components (500) and two elastic members (600) are installed on the second body (200), and each of the damping components (500) and each of the elastic members (600) are distributed and installed on the second body (200) along the axial direction of the driving rod (400).

10. A door assembly, characterized in that: It comprises a door body, a door frame and the hidden hinge according to any one of claims 1 to 9, wherein one of the first body (100) and the second body (200) is mounted on the door body, and the other is mounted on the door frame.

Images