Hidden hinge

Abstract

The utility model discloses a hidden type hinge, which relates to the technical field of hinges, and comprises a first metal sheet, the back of the first metal sheet is connected with an accommodating frame, a second metal sheet is arranged in the accommodating frame, the second metal sheet is connected with the accommodating frame through a connecting shaft, and the other side of the second metal sheet is welded with a third metal sheet. A mounting base is mounted in the middle of the rear of the inner wall of the containing frame, and the inner side of the mounting base is in threaded connection with a bottle body. According to the hinge, through the arrangement of the second metal sheet, the sliding block, the spray head, the bottle body and the like, when people violently close the door body connected with the hinge, the sliding block slides towards the other side of the sliding groove under the action of centrifugal force until the hinge is closed, the sliding block extrudes the spray head, the spray head sprays oil liquid to the position of the connecting shaft, and the lubricating effect is achieved; and meanwhile, the sprayer can achieve the purpose of buffering the sliding block, the purpose of dual functions is achieved, and the functionality of the hidden hinge is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, and in particular to a concealed hinge. Background Technology

[0002] A hinge, also known as a hinge leaf, is a component that connects two parts of an object and allows them to move. Common hinges are used for cabinet doors, windows, and doors. There are many types of hinges, including flag hinges, semi-circular hinges, hinged hinges, top-pivot hinges, and concealed hinges. Among them, concealed hinges do not have exposed edges after use and have the advantage of being aesthetically pleasing.

[0003] Existing hinges often require manual lubrication after prolonged use, and they often lack cushioning components when closed forcefully, making them prone to damage. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing hinges, which often require manual lubrication after long-term use and are easily damaged when the hinges are forcefully closed. Therefore, a concealed hinge is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A concealed hinge, comprising:

[0007] A first metal sheet has a receiving frame connected to its back side, and a second metal sheet is placed inside the receiving frame. The second metal sheet is connected to the receiving frame via a connecting shaft, and a third metal sheet is welded to the other side of the second metal sheet. A mounting base is installed in the middle of the rear of the inner wall of the receiving frame, and a bottle body is threadedly connected to the inner side of the mounting base. A nozzle is connected to the top of the bottle body, and a delivery pipe is connected to the output end of the nozzle. A groove is formed in the middle of the outer wall of the second metal sheet, and a slider is slidably arranged inside the groove. The slider is connected to the second metal sheet via a spring.

[0008] Preferably, the second metal sheet has an L-shaped structure, and the second metal sheet is movably connected to the connecting shaft.

[0009] Preferably, the receiving frame and the first metal sheet are welded together, and the inner side of the receiving frame is connected to the inner side of the first metal sheet.

[0010] Preferably, a spray head is connected to the end of the delivery pipe.

[0011] Preferably, the slider forms an elastic structure with the second metal sheet via a spring.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0013] 1. In this utility model, by setting the second metal sheet, slider, nozzle and bottle, when people forcefully close the door connected by the hinge, the slider is subjected to centrifugal force and slides to the other side of the slide groove until the hinge is closed. The slider then squeezes the nozzle, and the nozzle sprays oil to the connecting shaft to play a lubricating role. At the same time, the nozzle can buffer the slider, achieving a dual function and effectively improving the functionality of the concealed hinge. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall front structure of this utility model;

[0015] Figure 2 This is a top view of the overall internal structure of this utility model;

[0016] Figure 3 This is an enlarged structural diagram of point A in this utility model.

[0017] Legend:

[0018] 1. First metal sheet; 2. Connecting shaft; 3. Second metal sheet; 4. Third metal sheet; 5. Receiving frame; 6. Bottle body; 7. Nozzle; 8. Delivery pipe; 9. Mounting base; 10. Slide groove; 11. Slider; 12. Spring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Reference Figure 1-3A concealed hinge includes a first metal sheet 1, a receiving frame 5 connected to the back of the first metal sheet 1, and a second metal sheet 3 disposed inside the receiving frame 5. The second metal sheet 3 is connected to the receiving frame 5 via a connecting shaft 2, and a third metal sheet 4 is welded to the other side of the second metal sheet 3. The second metal sheet 3 has an L-shaped structure, and the second metal sheet 3 and the connecting shaft 2 are movably connected. The second metal sheet 3 and the connecting shaft 2 mainly serve to connect the first metal sheet 1 and the third metal sheet 4. The receiving frame 5 is welded to the first metal sheet 1, and the inner side of the receiving frame 5 is connected to the inner side of the first metal sheet 1. The receiving frame 5 is made of the same material as the metal sheet, and its main purpose is to facilitate the reception of the L-shaped second metal sheet 3.

[0021] A mounting base 9 is installed in the middle of the rear of the inner wall of the receiving frame 5, and a bottle body 6 is threaded to the inner side of the mounting base 9. A nozzle 7 is connected to the top of the bottle body 6, and a delivery pipe 8 is connected to the output end of the nozzle 7. A spray head is connected to the end of the delivery pipe 8. By setting the spray head, the oil in the delivery pipe 8 can be sprayed out through the spray head to complete the oiling work of the connecting shaft 2, making the hinge work more smoothly. A sliding groove 10 is opened in the middle of the outer wall of the second metal sheet 3, and a slider 11 is slidably arranged in the inner side of the sliding groove 10. The slider 11 is connected to the second metal sheet 3 through a spring 12. The slider 11 and the second metal sheet 3 form an elastic structure through the spring 12. When people forcefully close the door connected by the hinge, the slider 11 is subjected to centrifugal force and slides to the other side of the sliding groove 10 until the hinge is closed. The slider 11 squeezes the nozzle 7, and the nozzle 7 sprays oil to the connecting shaft 2 to play a lubricating role.

[0022] Working principle: In use, the first metal piece 1 and the third metal piece 4 of the concealed hinge are first embedded into the door frame and the door body respectively by the staff, so that the hinge will not have any exposed edges after the door is closed, thus achieving the purpose of concealment. Then, when the door connected by the hinge is closed forcefully, the slider 11 is subjected to centrifugal force and slides to the other side of the slide groove 10 until the hinge is closed. The slider 11 squeezes the nozzle 7, and the nozzle 7 sprays out oil, which is delivered to the connecting shaft 2 through the delivery pipe 8 and the spray head, and plays a lubricating role. At the same time, the nozzle 7 can buffer the slider 11, so that the hinge can achieve a dual function. Finally, under the action of the restoring force of the spring 12, the slider 11 can perform synchronous reset work, release the squeezing of the nozzle 7, and stop the oil spraying operation.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A concealed hinge, comprising: The first metal sheet (1) is characterized in that: a receiving frame (5) is connected to the back of the first metal sheet (1), and a second metal sheet (3) is placed inside the receiving frame (5). The second metal sheet (3) is connected to the receiving frame (5) through a connecting shaft (2), and a third metal sheet (4) is welded to the other side of the second metal sheet (3). A mounting seat (9) is installed in the middle of the rear of the inner wall of the receiving frame (5), and a bottle body (6) is threadedly connected to the inner side of the mounting seat (9). A nozzle (7) is connected to the top of the bottle body (6), and a delivery pipe (8) is connected to the output end of the nozzle (7). A sliding groove (10) is opened in the middle of the outer wall of the second metal sheet (3), and a slider (11) is slidably arranged inside the sliding groove (10). The slider (11) is connected to the second metal sheet (3) through a spring (12).

2. The concealed hinge according to claim 1, characterized in that: The second metal sheet (3) has an L-shaped structure, and the second metal sheet (3) is movably connected to the connecting shaft (2).

3. A concealed hinge according to claim 1, characterized in that: The receiving frame (5) and the first metal sheet (1) are welded together, and the inner side of the receiving frame (5) is connected to the inner side of the first metal sheet (1).

4. A concealed hinge according to claim 1, characterized in that: The end of the delivery pipe (8) is connected to a spray head.

5. A concealed hinge according to claim 1, characterized in that: The slider (11) forms an elastic structure with the second metal sheet (3) via the spring (12).

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