CN116771224A - Concealed hinge - Google Patents

Abstract

The application discloses a hidden hinge, which includes a first hinge installed on the door panel and a second hinge installed on the door frame. A hinge arm is provided between the first hinge and the second hinge. The hinge arm includes There is a first bridge arm and a second bridge arm; the first bridge arm is composed of a first connecting block and a second connecting block. One end of the first connecting block is hinged on the first hinge, and the other end of the first connecting block is hinged through the first hinge. The shaft is hinged to the second connecting block, and the second connection is hinged to the second hinge. The second bridge arm is composed of a third connecting block and a fourth connecting block. One end of the third connecting block is hinged to the first hinge, and the third connecting block is hinged to the first hinge. The other end of the block is hinged to the fourth connecting block through the second hinge shaft, and the fourth connecting block is hinged to the second hinge; wherein, the first hinge shaft and the second hinge shaft are arranged in a staggered manner. When applied to the same door panel weight, compared with existing products, the hidden hinge of this solution can achieve smaller size, more convenient installation and better rotation effect.

Description

Hidden hinge

Technical field

The present application relates to the field of door and window accessories, in particular to a hidden hinge for doors and windows.

Background technique

Door hinges are used for the movable connection between the door panel and the door frame so that the door can be opened or closed. A hidden hinge is a type of door hinge. The hidden hinge includes two hinges and a hinge arm that movably connects the two hinges. By providing a through hole on the door panel and/or door frame, the two hinges of the hidden hinge are installed inside the through hole. When the door is closed, the hinge arm of the hidden hinge is completely retracted into the via hole, and the entire door hinge is hidden without any exposed parts, which improves the appearance and prevents criminals from accessing any part of the hidden hinge. Improve security.

However, the articulated arm of the existing hidden hinge is often an integral part with a curvature, has a poor movement trajectory, and has a short extension distance in the open state, which affects its applicability, and requires a large storage space in the closed state. Hidden hinges are large in size and inconvenient to install; and the hinge arms of existing hidden hinges are connected to the hinges by long hinge shafts, which have poor rotational rigidity and limit the upper limit of the weight they can withstand the door panel.

Contents of the invention

In order to solve one of the technical problems existing in the prior art, this application provides a hidden hinge, the hinge arm of which includes multiple bridge arms, each bridge arm is a foldable structure composed of multiple connecting blocks, and the hinge arm is optimized At the same time, multiple misaligned short hinge axes are set up to enhance the rotational rigidity of the product and increase the upper limit of its ability to withstand the weight of the door panel.

A hidden hinge according to the first embodiment of the present invention includes a first hinge installed on the door panel and a second hinge installed on the door frame. The first hinge and the second hinge are At least one is provided with a storage slot, and a hinge arm is provided between the first hinge and the second hinge. The hinge arms are movably connected to the first hinge and the second hinge respectively. When When the first hinge and the second hinge are closed, the hinge arm is stored in the storage slot;

The hinged arm includes a first bridge arm and a second bridge arm;

The first bridge arm is composed of a first connecting block and a second connecting block. One end of the first connecting block is hinged on the first hinge, and the other end of the first connecting block is connected to the first hinge through a first hinge shaft. The second connecting block is hinged, and the other end of the second connecting block is hinged with the second hinge;

The second bridge arm is composed of a third connecting block and a fourth connecting block. One end of the third connecting block is hinged on the first hinge, and the other end of the third connecting block is connected to the first hinge through a second hinge shaft. The fourth connecting block is hinged, and the other end of the fourth connecting block is hinged to the second hinge;

Wherein, the first hinge axis and the second hinge axis are arranged in a staggered manner.

The hidden hinge according to the embodiment of the first aspect of the present invention has at least the following beneficial effects: the hinge arm of the hidden hinge of this solution includes a first bridge arm and a second bridge arm, and both the first bridge arm and the second bridge arm It is composed of multiple connecting blocks and is a foldable structure that optimizes the movement trajectory of the hinged arm. The hidden hinge has a long extension distance of the hinged arm in the open state, improving its applicability. The hidden hinge folds and stores the hinged arm in the closed state. , the required storage space is small, which can reduce the depth of the storage slot in the hinge, which is conducive to matching shallow via holes. At the same time, the hinge arm of this solution is equipped with multiple mutually offset hinge axes. The misaligned settings further reduce the storage space required by the hinge arm. Multiple shorter hinge axes can enhance the rotational rigidity of the product and increase the upper limit of its ability to withstand the weight of the door panel. When applied to the same door panel weight, compared with existing products, the hidden hinge of this solution can achieve smaller size, more convenient installation and better rotation effect.

According to the hidden hinge according to the first aspect of the present invention, the width A of the first bridge arm is greater than or equal to the width a of the second bridge arm.

According to the hidden hinge according to the first aspect of the present invention, there are two second bridge arms, and the two second bridge arms are respectively arranged on both sides of the first bridge arm. The symmetrical arrangement of the second bridge arms can improve the aesthetics of the product, and the provision of multiple second bridge arms can effectively enhance the load-bearing capacity of the product.

According to the hidden hinge according to the first aspect of the present invention, there are multiple first bridge arms and multiple second bridge arms, and the first bridge arms and the second bridge arms are staggeredly arranged. settings to further increase the product’s load-bearing capacity to accommodate heavier door panels.

According to the hidden hinge according to the first aspect of the present invention, the first hinge axis is close to the first hinge, and the second hinge axis is close to the second hinge; when the hidden hinge is opened, When the first hinge and the second hinge are in a horizontal state, a horizontal section is provided on the hinge arm, and the horizontal section is located between the horizontal distance between the first hinge axis and the second hinge axis. between. The hinged arm of this solution adopts a multiple foldable bridge arm structure, and is provided with a horizontal section on the hinged arm, which can not only make the hinged arm extend longer when the hidden hinge is opened, but also reduce the folded volume of the hinged arm. , thereby reducing the depth of the hinge.

According to the hidden hinge according to the first aspect of the present invention, the first hinge is provided with a first mounting piece, the first connecting block and the first mounting piece are hingedly connected through a third hinge axis, and the third hinge The three connecting blocks are hinged to the first mounting piece through a fourth hinge axis;

The second hinge is provided with a second mounting piece, the second connecting block and the second mounting piece are hingedly connected through a fifth hinge axis, and the fourth connecting block and the second mounting piece are hinged through a sixth Articulation shaft articulation.

According to the hidden hinge according to the first aspect of the present invention, the third hinge axis and the fourth hinge axis are arranged in a staggered manner, and the fifth hinge axis and the sixth hinge axis are arranged in a staggered manner. Through the above structure, the rotational rigidity of the product is further improved, and at the same time it is conducive to the folding and storage of the bridge arm.

According to the hidden hinge according to the first aspect of the present invention, the first hinge and the second hinge are respectively provided with adjustment devices, and the adjustment devices are configured by adjusting the first mounting piece and the second hinge. The position adjustment of the mounting piece adjusts the position of the hinge arm relative to the first hinge and the second hinge.

According to the hidden hinge according to the first aspect of the present invention, the first hinge and the second hinge are both provided with storage slots. Further, the size of the storage slots on the first hinge and the second hinge is The sizes are the same, thereby avoiding difficulties in opening vias caused by one side being too large.

According to the hidden hinge according to the first aspect of the present invention, the first hinge, the second hinge and the hinge arm are made of stainless steel, which is strong and durable.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the application. The objectives and other advantages of the application may be realized and obtained by the structure particularly pointed out in the specification, claims and appended drawings.

Description of drawings

The drawings are used to provide a further understanding of the technical solution of the present application and constitute a part of the specification. They are used to explain the technical solution of the present application together with the embodiments of the present application and do not constitute a limitation of the technical solution of the present application.

Fig. 1 is a front view of the hidden hinge in an open state according to the first embodiment.

Figure 2 is a three-dimensional structural view of the hidden hinge in an open state according to the first embodiment.

Fig. 3 is a three-dimensional structural view of the hidden hinge in a closed state according to the first embodiment.

Figure 4 is a schematic structural diagram of the hinged arm in an open state according to the first embodiment.

Figure 5 is a schematic structural diagram of the hinged arm in a closed state according to the first embodiment.

Figure 6 is a schematic structural diagram of the hidden hinge in an open state according to the second embodiment.

Explanation of reference numbers:

The first hinge 100, the storage slot 101, the mounting hole 102, the first adjustment hole 103, the first concave and convex structure 104; the first mounting piece 110;

second hinge 200, second adjustment hole 203, second concave-convex structure 204, second mounting piece 210;

Hinged arm 300, first bridge arm 310, first connecting block 311, second connecting block 312, first hinged shaft 313, third hinged shaft 314, fifth hinged shaft 315, second bridge arm 320, third connecting block 321, the fourth connecting block 322, the second hinge shaft 323, the fourth hinge shaft 324, and the sixth hinge shaft 325.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application and are not used to limit the present application.

In the description of this application, it should be noted that, unless otherwise clearly stated and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection or a movable connection, or a detachable connection or a non-detachable connection. , or integrally connected; it can be mechanical connection, electrical connection or mutual communication; it can be directly connected, or it can be indirectly connected through an intermediate medium or intermediate structure, it can be internal connection, indirect connection or two-way connection between two elements. interactions between components.

In the description of this application, it should be noted that several means one or more, plural (or multiple) means two or more, greater than, less than, over, etc. are understood to exclude the original number, above, below , within, etc. shall be understood as including the original number. If there are descriptions such as "first", "second", etc., they are only used for the purpose of distinguishing technical features and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the indicated technical features. The sequence relationship of technical features.

The embodiments of the present application will be further described below with reference to the accompanying drawings.

Referring to FIGS. 1 to 5 , the present application provides a first embodiment, an embodiment of a hidden hinge, which includes a first hinge 100 , a second hinge 200 and a hinge arm 300 . The first hinge 100, the second hinge 200 and the hinge arm 300 are preferably made of stainless steel, which is strong and durable.

Referring to Figures 1 and 2, it is easy to imagine that the first hinge 100 is used to be installed on the door panel. The first hinge 100 is provided with a mounting hole 102 for fixed connection with the door panel. The first hinge 100 is also provided with There is a storage slot 101. The second hinge 200 is used to be installed on the door frame. The second hinge 200 is also provided with a storage slot 101 and a mounting hole 102 .

Preferably, the storage slot 101 on the first hinge 100 and the storage slot 101 on the second hinge 200 have the same size.

Furthermore, in other embodiments, the storage slot 101 may be provided on only one of the first hinge 100 or the second hinge 200 .

As shown in FIGS. 1 and 2 , the hinge arm 300 is provided between the first hinge 100 and the second hinge 200 . The hinged arm 300 includes a first bridge arm 310 and a second bridge arm 320 . By providing more than two bridge arms, the hinge arm 300 can be subdivided, thereby using several shorter hinge shafts to replace the existing longer hinge shafts, thereby improving the rotational rigidity and load-bearing upper limit of the product.

As shown in FIGS. 1 and 2 , in this embodiment, there are two second bridge arms 320 , and the two second bridge arms 320 are symmetrically arranged on both sides of the first bridge arm 310 . The symmetrical arrangement of the second bridge arms 320 can improve the aesthetics of the product, and the provision of multiple second bridge arms 320 can effectively enhance the load-bearing capacity of the product.

In addition, it is easy to imagine that in other embodiments, multiple first bridge arms 310 and second bridge arms 320 can be provided, and the first bridge arms 310 and second bridge arms 320 are staggeredly arranged. Through this arrangement, it is possible to Further improve the product's load-bearing capacity to accommodate heavier door panels.

Specifically, as shown in Figures 2 and 4, the first bridge arm 310 is composed of a first connecting block 311 and a second connecting block 312. One end of the first connecting block 311 is hinged to the first hinge 100 through a third hinge shaft 314. On the other hand, the other end of the first connecting block 311 is hinged with the second connecting block 312 through the first hinge shaft 313, and the other end of the second connecting block 312 is hinged with the second hinge 200 through the fifth hinge shaft 315. The second bridge arm 320 is composed of a third connecting block 321 and a fourth connecting block 322. One end of the third connecting block 321 is hinged to the first hinge 100 through a fourth hinge shaft 324, and the other end of the third connecting block 321 passes through a second The hinge shaft 323 is hinged to the fourth connecting block 322 , and the other end of the fourth connecting block 322 is hinged to the second hinge 200 through the sixth hinge shaft 325 . Through the above structure, the first bridge arm 310 and the second bridge arm 320 are both foldable structures composed of multiple connecting blocks through hinges, which not only facilitates folding and storage, but also increases the extending distance when opened, improving the applicability of the product. . As shown in Figures 3 and 5, the first bridge arm 310 and the second bridge arm 320 can effectively reduce the storage volume after being folded.

Referring to Figures 1 to 5, in this embodiment, the first hinge axis 313 and the second hinge axis 323 are arranged in a staggered manner. Specifically, the first hinge axis 313 is close to the first hinge 100, and the second hinge axis 323 is close to the second hinge axis 313. Hinge 200. The misaligned setting further reduces the storage space requirement of the hinge arm 300, can reduce the depth of the storage groove 101 in the hinge, is conducive to matching shallow via holes, and reduces the difficulty of opening holes in the door panel and door frame.

Further, as shown in Figure 2, in this embodiment, when the hidden hinge is opened and the first hinge 100 and the second hinge 200 are in a horizontal state, the hinge arm 300 is provided with a horizontal section, and the horizontal section is located at between the first hinge axis 313 and the second hinge axis 323 . The hinge arm 300 of this solution adopts a multiple foldable bridge arm structure, and a horizontal section is provided on the hinge arm 300, which can not only make the hinge arm 300 extend longer when the hidden hinge is opened, but also reduce the length of the hinge arm 300. folded volume, thus reducing the depth of the hinge. For example, this solution provides a hidden hinge suitable for door panels with a weight of 60kg. The hinge arm 300 is provided with a horizontal section. After the hinge arm 300 is fully opened, the horizontal distance between the two hinges can reach 8cm, ensuring the maximum door opening size. .

Further, as shown in FIG. 4 , in this embodiment, the third hinge axis 314 and the fourth hinge axis 324 are arranged in a staggered manner, and the fifth hinge axis 315 and the sixth hinge axis 325 are arranged in a staggered manner. Through the above structure, the rotational rigidity of the product is further improved, and at the same time it is conducive to the folding and storage of the bridge arm.

As shown in FIGS. 1 and 2 , in this embodiment, the width A of the first bridge arm 310 is greater than the width a of the second bridge arm 320 . In this embodiment, the first bridge arm 310 is used as the main load-bearing bridge arm, and the second bridge arm 320 is used as the auxiliary load-bearing bridge arm configuration, making the product structure more reasonable and beautiful.

In addition, it is easy to imagine that in other embodiments, the width A of the first bridge arm 310 may also be equal to the width a of the second bridge arm 320 .

Referring to Figure 6, the present invention provides a second embodiment, an embodiment of a hidden hinge. The hidden hinge also includes a first hinge 100, a second hinge 200 and a hinge arm 300. The hinge arm 300 includes a third hinge. A bridge arm 310 and a second bridge arm 320 . The structure of the hidden hinge of this embodiment is mostly the same as that of the hidden hinge provided in the first embodiment. The difference is that the first hinge 100 of this embodiment is provided with a first concave-convex structure 104 and the second hinge 200 A second concave and convex structure 204 is provided on the top. The two concave and convex structures cooperate with each other to realize the locking when the hidden hinge is closed, so that the two can better cooperate. At the same time, there is no need to provide other locking structures, which can save the structure and materials of production. , reduce costs, while reducing the thickness of the hidden hinge, further reducing its size.

The hinge arm 300 of the hidden hinge in this solution includes a first bridge arm 310 and a second bridge arm 320. Both the first bridge arm 310 and the second bridge arm 320 are composed of multiple connecting blocks and are foldable structures to optimize hinge joints. The movement trajectory of the arm 300. When the hidden hinge is in the open state, the extension distance of the hinge arm 300 is long, which improves its applicability. When the hidden hinge is in the closed state, the hinge arm 300 is folded and stored. The required storage space is small, which can reduce the need for folding. The depth of the storage groove 101 in the page is conducive to matching shallow via holes. At the same time, the hinge arm 300 of this solution is provided with multiple mutually offset hinge axes. Multiple shorter hinge axes can enhance the rotational rigidity of the product and increase the upper limit of its ability to withstand the weight of the door panel. When applied to the same door panel weight, compared with existing products, the hidden hinge of this solution can achieve smaller size, more convenient installation and better rotation effect.

Further, referring to Figures 2, 4, 5 and 6, in the two embodiments provided by the present invention, the first hinge 100 is provided with a first adjustment hole 103, and the second hinge 200 is provided with a first adjustment hole 103. There is a second adjustment hole 203, and adjustment devices are respectively provided in the first adjustment hole 103 and the second adjustment hole 203. At the same time, the first hinge 100 is provided with a first mounting piece 110, the first connecting block 311 and the first mounting piece 110 are hinged through the third hinge shaft 314, and the third connecting block 321 and the first mounting piece 110 are hinged through the fourth hinge. Shaft 324 is articulated. The second hinge 200 is provided with a second mounting piece 210. The second connecting block 312 and the second mounting piece 210 are hinged through the fifth hinge shaft 315. The fourth connecting block 322 and the second mounting piece 210 are hinged through the sixth hinge shaft 325. Articulated. The adjusting device adjusts the position of the hinge arm 300 relative to the first hinge 100 and the second hinge 200 by adjusting the positions of the first mounting piece 110 and the second mounting piece 210 .

The above is a detailed description of the preferred implementation of the present application, but the present application is not limited to the above-mentioned embodiments. Those skilled in the art can also make various equivalent modifications or substitutions without violating the spirit of the present application. These equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims (10)

1. The hidden hinge comprises a first hinge arranged on a door plate and a second hinge arranged on a door frame, wherein at least one of the first hinge and the second hinge is provided with a storage groove, a hinge arm is arranged between the first hinge and the second hinge and is respectively and movably connected with the first hinge and the second hinge, and when the first hinge and the second hinge are closed, the hinge arm is stored in the storage groove;

the hinge arm is characterized by comprising a first bridge arm and a second bridge arm;

the first bridge arm consists of a first connecting block and a second connecting block, one end of the first connecting block is hinged to the first hinge, the other end of the first connecting block is hinged to the second connecting block through a first hinge shaft, and the other end of the second connecting block is hinged to the second hinge;

the second bridge arm consists of a third connecting block and a fourth connecting block, one end of the third connecting block is hinged to the first hinge, the other end of the third connecting block is hinged to the fourth connecting block through a second hinge shaft, and the other end of the fourth connecting block is hinged to the second hinge;

the first hinge shaft and the second hinge shaft are arranged in a staggered mode.

2. The hidden hinge of claim 1, wherein a width a of the first leg is equal to or greater than a width a of the second leg.

3. The hidden hinge according to claim 1 or 2, wherein two second bridge arms are provided, the two second bridge arms being arranged on both sides of the first bridge arm, respectively.

4. The hidden hinge of claim 1 or 2, wherein the first leg and the second leg are each provided in plurality, and the first leg and the second leg are staggered.

5. The hidden hinge of claim 1, wherein the first hinge axis is proximate the first hinge and the second hinge axis is proximate the second hinge;

when the hidden hinge is opened until the first hinge and the second hinge are in a horizontal state, a horizontal section is arranged on the hinge arm and is positioned between the horizontal distances of the first hinge shaft and the second hinge shaft.

6. The hidden hinge of claim 1, wherein:

the first hinge is provided with a first mounting plate, the first connecting block is hinged with the first mounting plate through a third hinge shaft, and the third connecting block is hinged with the first mounting plate through a fourth hinge shaft;

the second hinge is provided with a second mounting piece, the second connecting block is hinged with the second mounting piece through a fifth hinge shaft, and the fourth connecting block is hinged with the second mounting piece through a sixth hinge shaft.

7. The hidden hinge of claim 6, wherein the third hinge shaft and the fourth hinge shaft are arranged in a staggered manner, and the fifth hinge shaft and the sixth hinge shaft are arranged in a staggered manner.

8. The hidden hinge of claim 6, wherein an adjustment device is disposed in each of the first hinge and the second hinge, and wherein the adjustment device adjusts the position of the hinge arm relative to the first hinge and the second hinge by adjusting the positions of the first mounting tab and the second mounting tab.

9. The hidden hinge of claim 1, wherein the first hinge and the second hinge are each provided with a receiving slot.

10. The hidden hinge of claim 1, wherein the first hinge, the second hinge, and the hinge arm are fabricated from stainless steel.