Novel blank door crank arm hinge

Abstract

The utility model relates to the technical field of crank arm hinges, and discloses a novel blank door crank arm hinge which comprises a fixed frame, a hidden door arranged on one side of the fixed frame and first hinge seats integrally formed on the surface of the hidden door and symmetrically arranged. First hinge holes are formed in the sides, close to each other, of the two first hinge bases, elastic lock catches used for fixing and clamping are installed on the fixed frame and the hidden door, and hinge connecting assemblies used for mutual connection are installed between the fixed frame and the hidden door. The crank arm hinge can connect and lock the fixed frame and the hidden door at the same time only by pressing a pressing plate to enable a second locking block on the pressing plate to be inserted into a lock hole formed in the strip-shaped shell for locking, the installation mode is more convenient and practical, the overall structure assembling efficiency is improved, the use effect of the crank arm hinge is improved, and the practicability is high. And actual use requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of curved arm hinges, in particular to a novel curved arm hinge for a hidden door. Background Art

[0002] The hidden door curved arm hinge is a specially designed hidden door hardware that aims to solve the problems existing in the traditional hidden door installation method. The curved arm hinge is a special hinge design that uses a unique connecting curved arm shape, which allows the hinge to be hidden inside the door leaf. It is suitable for various occasions where hidden hinges are needed. In some occasions, it may not be aesthetically pleasing.

[0003] At present, when the fixed frame and the hidden door are connected and installed by the curved arm hinge, the fixed frame and the hidden door are installed one by one by bolts through the curved arm hinge. This installation process is relatively complicated, resulting in low efficiency of the connection process and reduced effect of the curved arm hinge. Therefore, we propose a new type of curved arm hinge for hidden door to solve the above problems. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a new type of hidden door curved arm hinge, which solves the problem that when the fixed frame and the hidden door are currently connected and installed by the curved arm hinge, the fixed frame and the hidden door are installed one by one by bolts through the curved arm hinge. This installation process is relatively complicated, resulting in low efficiency of the connection process and reduced effectiveness of the curved arm hinge.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a novel hidden door curved arm hinge, comprising a fixed frame, a hidden door arranged on one side of the fixed frame, and hinge seats integrally formed and symmetrically arranged on the surface of the hidden door, two sets of hinge seats having hinge holes formed on their adjacent sides, elastic lock buckles for fixed engagement are installed on the fixed frame and the hidden door, and a hinge connection assembly for mutual connection is installed between the fixed frame and the hidden door;

[0006] The hinge connection assembly includes a strip housing provided on the fixed frame, guide rods symmetrically arranged and sliding inside the strip housing, and square blocks fixed to one end of two sets of guide rods close to each other;

[0007] A pressing plate is provided between the two groups of square blocks, a connecting rod is provided between the pressing plate and the square blocks, and both ends of the connecting rod are hinged to the square blocks and the pressing plate respectively through hinge seats;

[0008] A telescopic rod is fixed between the pressing plate and the strip-shaped housing, a symmetrically arranged mounting seat is fixed on the surface of the pressing plate, a second locking block is slidably connected inside the mounting seat, a second symmetrically arranged spring is fixed between the second locking block and the mounting seat, and a lock hole adapted for the second locking block is opened on the surface of the strip-shaped housing;

[0009] The end of the guide rod is rotatably connected to the hinge seat 2 through a bearing, a fixed block is provided on the inner side of the fixed frame near the hinge seat 2, a sliding block is slidably connected to the inner side of the fixed block, a spring 3 is fixed between the sliding block and the fixed block, a slot is provided inside the fixed frame for facilitating the insertion of the fixed block, a card hole adapted for the sliding block is provided on the inner side of the fixed frame near the slot, the card hole and the slot are communicated, a hinge column 2 is fixed to the outer surface of the fixed block, and a hinge hole 2 for inserting the hinge column 2 is provided on the surface of the hinge seat 2;

[0010] A connecting curved arm is fixed on the surface of the guide rod, and a hinge column 1 movably plugged into a hinge hole 1 is fixed on one end of the connecting curved arm.

[0011] Preferably, the square block fits in contact with the inner side wall of the strip-shaped shell, and through holes adapted to the guide rod are provided at both ends of the strip-shaped shell, and the guide rod and the strip-shaped shell are slidably connected through the through holes.

[0012] Preferably, a movable groove 1 is provided on the surface of the mounting seat and is adapted to the locking block 2, and the locking block 2 and the mounting seat are slidingly connected through this movable groove 1; a movable groove 2 is provided on the surface of the fixed block and is adapted to the sliding block, and the sliding block and the fixed block are slidingly connected through this movable groove 2.

[0013] Preferably, one side of the second locking block is designed as an inclined surface structure.

[0014] Preferably, a spring 1 is fixed between the pressing plate and the strip-shaped housing on a side close to the telescopic rod, and the spring 1 is wound around the surface of the telescopic rod.

[0015] Beneficial effects

[0016] The utility model provides a new type of curved arm hinge for hidden doors. Compared with the existing technology, it has the following advantages:

[0017] This new hidden door curved arm hinge uses a hinge connection component. Only by pressing the pressing plate, the locking block 2 on the pressing plate is inserted into the lock hole provided in the strip shell for locking. During the locking process, the curved arm hinge can simultaneously connect and lock the fixed frame and the hidden door. This installation method is more convenient and practical, improves the overall structural assembly efficiency, improves the use effect of the curved arm hinge, and meets actual usage needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a partial diagram of the overall structure of the utility model;

[0020] Figure 3 This is a cross-sectional view of the mounting seat structure of the utility model;

[0021] Figure 4 It is a partial cross-sectional view of the fixed frame structure of the utility model.

[0022] In the figure: 1. Fixed frame; 2. Hidden door; 21. Hinge seat 1; 3. Hinge connection assembly; 301. Strip shell; 302. Guide rod; 303. Square block; 304. Connecting rod; 305. Pressing plate; 306. Spring 1; 307. Locking hole; 308. Telescopic rod; 309. Mounting seat; 310. Spring 2; 311. Locking block 2; 312. Connecting curved arm; 313. Hinge column 1; 314. Hinge seat 2; 315. Fixed block; 316. Hinge column 2; 317. Spring 3; 318. Sliding block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figure 1 As shown:

[0025] A new type of hidden door curved arm hinge includes a fixed frame 1, a hidden door 2 arranged on one side of the fixed frame 1, and a hinge seat 21 integrally formed on the surface of the hidden door 2 and arranged symmetrically. A hinge hole 1 is opened on the side where the two sets of hinge seats 21 are close to each other, and elastic lock buckles for fixed engagement are installed on the fixed frame 1 and the hidden door 2.

[0026] In this embodiment: This application makes further improvements on this existing subject, and for details, please refer to the disclosed technology below; in order to solve the technical problems existing in this existing technology, as disclosed in the background technology above, "at present, when the fixed frame 1 and the hidden door are connected and installed by the curved arm hinge, the fixed frame 1 and the hidden door are installed one by one by bolts through the curved arm hinge, and this installation process is relatively complicated, resulting in low efficiency of the component connection process and reduced effect of the use of the curved arm hinge". In terms of combined use, this problem is obviously a real problem that exists and is relatively difficult to solve. In view of this, in order to solve this technical problem, a hinge connection component 3 is added to the present application document.

[0027] More specifically:

[0028] like Figure 1-Figure 4 As shown:

[0029] A hinge connection assembly 3 for mutual connection is installed between the fixed frame 1 and the hidden door 2. The hinge connection assembly 3 includes a strip-shaped housing 301 provided on the fixed frame 1, guide rods 302 symmetrically arranged and sliding inside the strip-shaped housing 301, and square blocks 303 fixed to the ends of the two sets of guide rods 302 close to each other.

[0030] A pressing plate 305 is provided between the two groups of square blocks 303, and a connecting rod 304 is provided between the pressing plate 305 and the square blocks 303. The two ends of the connecting rod 304 are hinged to the square blocks 303 and the pressing plate 305 respectively through hinge seats;

[0031] A telescopic rod 308 is fixed between the pressing plate 305 and the strip-shaped housing 301. A symmetrically arranged mounting seat 309 is fixed to the surface of the pressing plate 305. A second locking block 311 is slidably connected to the interior of the mounting seat 309. A symmetrically arranged second spring 310 is fixed between the second locking block 311 and the mounting seat 309. A locking hole 307 is opened on the surface of the strip-shaped housing 301 to match the second locking block 311.

[0032] The end of the guide rod 302 is rotatably connected to the hinge seat 2 314 through a bearing, a fixed block 315 is provided on the side of the fixed frame 1 near the hinge seat 2 314, and a sliding block 318 is slidably connected to the interior of the fixed block 315. A spring 317 is fixed between the sliding block 318 and the fixed block 315. A slot is provided inside the fixed frame 1 for facilitating the insertion of the fixed block 315. A card hole is provided on the side of the fixed frame 1 near the slot that is compatible with the sliding block 318. The card hole and the slot are connected. A hinge column 2 316 is fixed to the outer surface of the fixed block 315, and a hinge hole 2 for inserting the hinge column 2 316 is provided on the surface of the hinge seat 2 314.

[0033] A connecting arm 312 is fixed to the surface of the guide rod 302, and a hinge column 313 movably connected to a hinge hole 1 is fixed to one end of the connecting arm 312;

[0034] The square block 303 fits in place with the inner wall of the strip housing 301. Through holes that fit the guide rod 302 are provided at both ends of the strip housing 301. The guide rod 302 and the strip housing 301 are slidably connected through the through holes.

[0035] The surface of the mounting seat 309 is provided with a movable groove 1 that is compatible with the locking block 2 311, and the locking block 2 311 and the mounting seat 309 are slidingly connected through this movable groove 1. The surface of the fixed block 315 is provided with a movable groove 2 that is compatible with the sliding block 318, and the sliding block 318 and the fixed block 315 are slidingly connected through this movable groove 2.

[0036] In this embodiment, when the new hidden door curved arm hinge is used to connect the fixed frame 1 and the hidden door 2, the sliding block 318 on the fixed block 315 is first pressed. At this time, the sliding block 318 compresses the spring 317 until the sliding block 318 is completely moved into the interior of the fixed block 315. At the same time, the fixed block 315 is completely inserted into the slot provided in the fixed frame 1. When the sliding block 318 corresponds to the locking hole provided in the fixed frame 1, the spring 317 rebounds and drives the sliding block 318 to be inserted into the locking hole provided in the fixed frame 1, thereby connecting and locking the fixed frame 1 and the fixed block 315.

[0037] The pressing plate 305 is then pressed to compress the telescopic rod 308. The telescopic rod 308 can improve the stability of the pressing plate 305. The pressing of the pressing plate 305 can press the connecting rod 304, so that the angle between the two groups of connecting rods 304 is continuously increased, and the connecting rod 304 pushes the two groups of square blocks 303 and the guide rod 302 to move away from each other. As the guide rod 302 moves, the connecting curved arm 312 is driven to move, and the connecting curved arm 312 drives the hinge column 1 313 to move, so that the hinge column 1 313 is inserted into the hinge hole 1 provided in the hinge seat 1 21 integrally formed with the hidden door 2, and this hinge structure completes the connection of the hidden door 2.

[0038] During this process, the pressing plate 305 is continuously pressed, thereby driving the guide rod 302 to move, and the guide rod 302 drives the connecting arm 312 and the hinge column 1 313 to continue to move. At this time, the hinge column 1 313 continuously moves in the hinge hole 1 provided in the hinge seat 1 21. At this time, the guide rod 302 drives the hinge seat 2 314 to move. At this time, the hinge hole 2 provided in the hinge seat 2 314 is sleeved on the hinge column 2 316 at the bottom of the fixed block 315.

[0039] When the second locking block 311 contacts the edge of the strip housing 301, the second locking block 311 is blocked and squeezed, and the second locking block 311 drives the second spring 310 to be compressed until the second locking block 311 is completely moved into the interior of the mounting seat 309. At this time, when pressing the pressing plate 305, the pressing plate 305 is located inside the strip housing 301. When the second locking block 311 corresponds to the locking hole 307, the second spring 310 rebounds and drives the second locking block 311 to be inserted into the strip housing 30 1, thereby completing the connection and locking of the pressing plate 305 and the strip housing 301. When the pressing plate 305 is locked, the surface of the connecting arm 312 is in contact with the hinge seat 1 21, and the hinge column 1 313 is fully inserted into the hinge hole 1 opened in the hinge seat 1 21. The hinge seat 2 314 is in contact with the surface of the fixing block 315. At this time, the hinge column 2 316 is fully inserted into the hinge hole 2 opened in the hinge seat 2 314, thereby completing the connection of the hinge structure to the fixed frame 1.

[0040] Through this operation, only by pressing the pressing plate 305, the locking block 2 311 on the pressing plate 305 is inserted into the locking hole 307 opened in the strip shell 301 for locking. The curved arm hinge can simultaneously connect and lock the fixed frame 1 and the hidden door 2. This installation method is more convenient and practical, improves the overall structural assembly efficiency, improves the use effect of the curved arm hinge, and meets actual usage needs.

[0041] Going further;

[0042] In an optional embodiment, one side of the second locking block 311 is designed to have an inclined surface structure.

[0043] In this embodiment: one side of the locking block 2 311 is designed with an inclined surface structure. When the pressing plate 305 is pressed, when the inclined surface of the locking block 2 311 fits with the corner of the strip shell 301, the locking block 2 311 can be automatically squeezed to move, and there is no need to manually press the locking block 2 311, thereby further improving the convenience of the structure.

[0044] Going further;

[0045] In an optional embodiment, a spring 1 306 is fixed between the pressing plate 305 and the strip-shaped housing 301 on a side close to the telescopic rod 308 , and the spring 1 306 is wound around the surface of the telescopic rod 308 .

[0046] In this embodiment, when the second locking block 311 is separated from the bar-shaped housing 301 , the compressed first spring 306 rebounds, thereby automatically ejecting the pressing plate 305 from the bar-shaped housing 301 .

[0047] The working principle and usage process of the present invention are as follows: when the new hidden door curved arm hinge is used to connect the fixed frame 1 and the hidden door 2, the sliding block 318 on the fixed block 315 is first pressed. At this time, the sliding block 318 compresses the spring 317 until the sliding block 318 is completely moved into the interior of the fixed block 315. At the same time, the fixed block 315 is completely inserted into the slot provided in the fixed frame 1. When the sliding block 318 corresponds to the clamping hole provided in the fixed frame 1, the spring 317 rebounds and drives the sliding block 318 to be inserted into the clamping hole provided in the fixed frame 1, thereby connecting and locking the fixed frame 1 and the fixed block 315;The pressing plate 305 is then pressed to compress the spring 1 306 and the telescopic rod 308 at the same time. The telescopic rod 308 can improve the stability of the pressing plate 305. The pressing of the pressing plate 305 can press the connecting rod 304, so that the angle between the two groups of connecting rods 304 is continuously increased, and the connecting rod 304 can push the two groups of square blocks 303 and the guide rod 302 to move away from each other. As the guide rod 302 moves, the connecting arm 312 is driven to move, and the hinge column 1 313 is driven to move by the connecting arm 312, so that the hinge column 1 313 is inserted into the hidden door 2 as a whole. The hinge structure is connected to the hidden door 2 by pressing the pressing plate 305 in the hinge hole 1 opened by the hinge seat 1 21. During this process, the pressing plate 305 is continued to be pressed, thereby driving the guide rod 302 to move. The guide rod 302 drives the connecting arm 312 and the hinge column 1 313 to continue to move. At this time, the hinge column 1 313 continues to move in the hinge hole 1 opened by the hinge seat 1 21. At this time, the guide rod 302 drives the hinge seat 2 314 to move. At this time, the hinge hole 2 opened by the hinge seat 2 314 is sleeved on the hinge column 2 316 at the bottom of the fixed block 315. When the locking block 2 311 contacts the edge of the strip shell 301, the locking block 2 311 is blocked and squeezed. When the locking plate 305 is locked, the surface of the connecting arm 312 is in contact with the hinge seat 21, and the hinge column 313 is fully inserted into the hinge seat 21. The hinge 316 is fully inserted into the second hinge hole 316 of the first hinge seat 21, and the second hinge seat 314 is in contact with the surface of the fixed block 315. This completes the connection of the hinge structure to the fixed frame 1. By simply pressing the pressing plate 305, the second locking block 311 on the pressing plate 305 is inserted into the locking hole 307 of the strip housing 301 for locking. The curved arm hinge can simultaneously connect and lock the fixed frame 1 and the hidden door 2. This installation method is more convenient and practical, improves the overall structural assembly efficiency, enhances the use effect of the curved arm hinge, and meets actual usage needs.

[0048] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A novel hidden door curved arm hinge, comprising a fixed frame (1), a hidden door (2) arranged on one side of the fixed frame (1), and a hinge seat (21) integrally formed and symmetrically arranged on the surface of the hidden door (2), two sets of hinge seats (21) are provided with a hinge hole on the side close to each other, and elastic lock buckles for fixing and engaging are installed on the fixed frame (1) and the hidden door (2), characterized in that: A hinge connection assembly (3) for mutual connection is installed between the fixed frame (1) and the hidden door (2); The hinge connection assembly (3) comprises a strip-shaped housing (301) arranged on the fixed frame (1), guide rods (302) symmetrically arranged and sliding inside the strip-shaped housing (301), and square blocks (303) fixed to two sets of guide rods (302) close to one end. A pressing plate (305) is provided between the two groups of square blocks (303), a connecting rod (304) is provided between the pressing plate (305) and the square blocks (303), and two ends of the connecting rod (304) are respectively hinged to the square blocks (303) and the pressing plate (305) through hinge seats; A telescopic rod (308) is fixed between the pressing plate (305) and the strip-shaped housing (301); a symmetrically arranged mounting seat (309) is fixed on the surface of the pressing plate (305); a second locking block (311) is slidably connected inside the mounting seat (309); a second spring (310) is symmetrically arranged between the second locking block (311) and the mounting seat (309); and a locking hole (307) adapted to the second locking block (311) is provided on the surface of the strip-shaped housing (301); The end of the guide rod (302) is rotatably connected to the hinge seat 2 (314) through a bearing, a fixed block (315) is provided on the side of the fixed frame (1) near the hinge seat 2 (314), the fixed block (315) is slidably connected to the sliding block (318), a spring 3 (317) is fixed between the sliding block (318) and the fixed block (315), a slot for facilitating the insertion of the fixed block (315) is provided on the inside of the fixed frame (1), a card hole adapted to the sliding block (318) is provided on the side of the fixed frame (1) near the slot, the card hole and the slot are connected, a hinge column 2 (316) is fixed on the outer surface of the fixed block (315), and a hinge hole 2 for inserting the hinge column 2 (316) is provided on the surface of the hinge seat 2 (314); A connecting curved arm (312) is fixed on the surface of the guide rod (302), and a hinge column (313) movably plugged into a hinge hole (313) is fixed on one end of the connecting curved arm (312).

2. The novel hidden door curved arm hinge according to claim 1, characterized in that: The square block (303) is fitted with the inner side wall of the strip housing (301). Through holes adapted to the guide rod (302) are provided at both ends of the strip housing (301). The guide rod (302) and the strip housing (301) are slidably connected via the through holes.

3. The novel hidden door curved arm hinge according to claim 2, characterized in that: The surface of the mounting seat (309) is provided with a movable groove 1 adapted to the second locking block (311), and the second locking block (311) and the mounting seat (309) are slidably connected through the movable groove 1. The surface of the fixed block (315) is provided with a movable groove 2 adapted to the sliding block (318), and the sliding block (318) and the fixed block (315) are slidably connected through the movable groove 2.

4. The novel hidden door curved arm hinge according to claim 3, characterized in that: One side of the locking block 2 (311) is designed as an inclined surface structure.

5. The novel hidden door curved arm hinge according to claim 1, characterized in that: A spring 1 (306) is fixed between the pressing plate (305) and the strip-shaped housing (301) on one side close to the telescopic rod (308), and the spring 1 (306) is wound around the surface of the telescopic rod (308).

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