Piano hinge mechanism

Abstract

The utility model discloses a piano hinge mechanism, and relates to the technical field of piano hinges, the piano hinge mechanism comprises a hinge support, the hinge support is fixedly connected to a piano body, the hinge support is rotatably connected with a hinge rotating sheet, the hinge rotating sheet is fixedly connected with a piano cover plate, and a pressing assembly is also arranged in the hinge support; by arranging the hinge support, the hinge rotating piece, the piano cover plate and the pressing assembly, when the piano cover plate rotates to the vertical position, a sliding rod in the pressing assembly can be pulled by a spring in the hinge support and then enters a locking groove, and locking of the hinge rotating piece and the piano cover plate is completed; the piano cover plate is prevented from being accidentally closed due to stress and hurting the hands of a user.

Description

Technical Field

[0001] This utility model relates to the field of piano hinge technology, specifically a piano hinge mechanism. Background Technology

[0002] Piano hinges are a type of hardware accessory specifically designed for pianos. They are primarily used to connect the piano lid to the piano body, allowing the piano lid to open and close smoothly.

[0003] However, existing piano hinge mechanisms lack the necessary self-locking structure, allowing the piano cover to rotate freely. This makes the piano cover prone to closing under force when open, potentially pinching or injuring the user.

[0004] Based on this, a piano hinge mechanism is now provided that can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a piano hinge mechanism to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A piano hinge mechanism includes a hinge support, which is fixedly connected to the piano body. A hinge swivel is rotatably connected to the hinge support, and a piano cover plate is fixedly connected to the hinge swivel. The hinge support also includes a pressing component.

[0008] Preferably, the piano body includes a piano cover mounting groove, a hinge support plate, hinge support mounting holes, and a piano cover limiting groove. The piano body has a piano cover mounting groove, and a hinge support plate is fixedly connected to the top of the piano body. The hinge support plate has multiple hinge support mounting holes on both sides, and a piano cover limiting groove is also provided on the hinge support plate.

[0009] Preferably, the piano cover includes an L-shaped cover body, a soft pad, and hinge rotation plate mounting holes. The soft pad is fixedly connected to the L-shaped cover body, and multiple hinge rotation plate mounting holes are provided on both sides of the L-shaped cover body.

[0010] Preferably, the cross-sectional shape of the L-shaped cover plate body near the hinge rotating piece mounting hole matches the piano cover plate limiting groove.

[0011] Preferably, the hinge support includes a bottom support plate, bottom fixing holes, side support plates, a pivot, a horizontal slide groove, an arc-shaped slide groove, a spring support plate, a spring, and a retaining ring. The bottom support plate has multiple bottom fixing holes that mate with the hinge support mounting holes. Two side support plates are symmetrically arranged on the surface of the bottom support plate. A pivot is fixedly connected to the outer side of each side support plate. A horizontal slide groove is also provided on the side support plate. An arc-shaped slide groove is provided at the end of each side support plate away from the pivot. A spring support plate is fixedly connected between the two side support plates. A spring is connected to the inner wall of the spring support plate. A retaining ring is connected to the end of the spring away from the spring support plate.

[0012] Preferably, the hinge rotating piece includes a fixed mounting plate, a side rotating plate, a pivot mounting hole, a locking groove, and a fixed mounting hole. The fixed mounting plate is provided with a plurality of fixed mounting holes that cooperate with the hinge rotating piece mounting holes. A side rotating plate is provided on each side of the fixed mounting plate. A pivot mounting hole that cooperates with the pivot is provided in the side rotating plate. A locking groove is also provided on the side rotating plate.

[0013] Preferably, the pressing assembly includes a connecting plate, a paddle, a connecting key, and a slide bar. The connecting plate has a paddle on its side, and two connecting keys are symmetrically arranged at the bottom of the connecting plate. Two slide bars are fixedly connected to the connecting keys.

[0014] Preferably, the sliding rod located on the front side is matched with the dimensions of the horizontal sliding groove, the fixing ring and the locking groove respectively, and the sliding rod located on the rear side matches the shape of the arc-shaped sliding groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model, by setting a hinge support, a hinge rotating piece, a piano cover plate, and a pressing component, when the piano cover plate rotates to the vertical position, the slide rod in the pressing component will be pulled by the spring in the hinge support, and then enter the locking groove to lock the hinge rotating piece and the piano cover plate, preventing the piano cover plate from being accidentally closed due to force and pinching the user's hand.

[0017] 2. This utility model can prevent damage to the piano body when the piano cover is closed by setting a soft pad in the piano cover. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the piano body in this utility model.

[0020] Figure 3 This is a schematic diagram showing the cooperation between the piano cover plate and the hinge rotating piece in this utility model.

[0021] Figure 4 This is a schematic diagram of the hinge support and pressing assembly in this utility model.

[0022] Figure reference numerals: 100, Piano body; 101, Piano cover mounting groove; 102, Hinge support plate; 103, Hinge support mounting hole; 104, Piano cover limiting groove; 200, Piano cover; 201, L-shaped cover body; 202, Pad; 203, Hinge swivel mounting hole; 300, Hinge support; 301, Bottom support plate; 302, Bottom fixing mounting hole; 303, Side support plate; 30 4. Rotating shaft; 305. Horizontal slide groove; 306. Arc-shaped slide groove; 307. Spring support plate; 308. Spring; 309. Fixing ring; 400. Hinge rotating piece; 401. Fixed mounting plate; 402. Side rotating plate; 403. Rotating shaft mounting hole; 404. Locking groove; 405. Fixed mounting hole; 500. Pressing assembly; 501. Connecting plate; 502. Paddle; 503. Connecting key; 504. Slide rod. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] In one embodiment, such as Figures 1-4 As shown, a piano hinge mechanism includes a hinge support 300, which is fixedly connected to the piano body 100. A hinge rotating piece 400 is rotatably connected to the hinge support 300, and a piano cover plate 200 is fixedly connected to the hinge rotating piece 400. The piano cover plate 200 is opened or closed by rotating the hinge rotating piece 400. The hinge support 300 is also provided with a pressing component 500, which can lock or unlock the position of the hinge rotating piece 400.

[0025] In one embodiment, such as Figure 2 As shown, the piano body 100 includes a piano cover mounting groove 101, a hinge support plate 102, a hinge support mounting hole 103, and a piano cover limiting groove 104. The piano body 100 has a piano cover mounting groove 101 to reserve space for the rotation of the piano cover 200. The piano body 100 is also fixedly connected to the top of the piano body 100 to support the hinge support 300. The hinge support plate 102 has multiple hinge support mounting holes 103 on both sides, and a piano cover limiting groove 104 is also provided on the hinge support plate 102 to support and limit the piano cover 200 in the vertical position.

[0026] In one embodiment, such as Figure 3As shown, the piano cover 200 includes an L-shaped cover body 201, a soft pad 202, and hinge rotating piece mounting holes 203. The soft pad 202 is fixedly connected to the L-shaped cover body 201, which increases the softness when the piano cover 200 is closed and fits against the piano body 100, and avoids excessive force when the piano cover 200 is closed, which may damage the outer surface of the piano body 100. Multiple hinge rotating piece mounting holes 203 are provided on both sides of the L-shaped cover body 201, which are reserved holes for fixing the hinge rotating piece 400.

[0027] In one embodiment, such as Figures 2-3 As shown, the cross-sectional shape of the L-shaped cover plate body 201 near the hinge rotating piece mounting hole 203 matches the piano cover plate limiting groove 104, so that when the piano cover plate 200 is in the open state, the piano cover plate 200 is supported by the cooperation of the L-shaped cover plate body 201 and the piano cover plate limiting groove 104.

[0028] In one embodiment, such as Figure 4 As shown, the hinge support 300 includes a bottom support plate 301, bottom fixing mounting holes 302, side support plates 303, a rotating shaft 304, a horizontal slide groove 305, an arc-shaped slide groove 306, a spring support plate 307, a spring 308, and a fixing ring 309. The bottom support plate 301 has multiple bottom fixing mounting holes 302 that mate with the hinge support mounting holes 103. Screws are used to fix the hinge support 300 through the bottom fixing mounting holes 302 and the hinge support mounting holes 103. Two side support plates 304 are symmetrically arranged on the surface of the bottom support plate 301. 3. A rotating shaft 304 is fixedly connected to the outer side of the side support plate 303. A horizontal sliding groove 305 is also provided on the side support plate 303. An arc-shaped sliding groove 306 is provided at the end of the side support plate 303 away from the rotating shaft 304. A spring support plate 307 is fixedly connected between the two side support plates 303. A spring 308 is connected to the inner wall of the spring support plate 307. A fixing ring 309 is connected to the end of the spring 308 away from the spring support plate 307. By fitting the fixing ring 309 onto the sliding rod 504, the spring force of the spring 308 can be used to pull the pressing component 500.

[0029] In one embodiment, such as Figure 3As shown, the hinge rotating piece 400 includes a fixed mounting plate 401, a side rotating plate 402, a pivot mounting hole 403, a locking groove 404, and a fixed mounting hole 405. The fixed mounting plate 401 has multiple fixed mounting holes 405 that mate with the hinge rotating piece mounting hole 203. The hinge rotating piece 400 is fixed by screws passing through the hinge rotating piece mounting hole 203 and the fixed mounting hole 405. Each side of the fixed mounting plate 401 has a side rotating plate 402. Each side rotating plate 402 has a pivot mounting hole 403 that mates with the pivot 304, allowing the hinge rotating piece 400 to rotate axially along the pivot 304. The side rotating plate 402 also has a locking groove 404 to lock the hinge rotating piece 400, thereby fixing the position of the piano cover 200.

[0030] In one embodiment, such as Figure 4 As shown, the pressing assembly 500 includes a connecting plate 501, a paddle 502, a connecting key 503, and a slide bar 504. The paddle 502 is provided on the side of the connecting plate 501, and two connecting keys 503 are symmetrically provided on the bottom of the connecting plate 501. Two slide bars 504 are fixedly connected to the connecting keys 503.

[0031] In one embodiment, such as Figure 1 , Figure 3 and Figure 4 As shown, the sliding rod 504 on the front side is matched with the dimensions of the horizontal sliding groove 305, the fixing ring 309 and the locking groove 404 respectively. The sliding rod 504 on the rear side matches the shape of the arc-shaped sliding groove 306. By pressing the paddle 502, the sliding rod 504 on the rear side can slide along the arc-shaped sliding groove 306, and then the connecting key 503 drives the sliding rod 504 on the front side to slide along the horizontal sliding groove 305, and pulls the fixing ring 309 to move together.

[0032] Working principle: First, push the L-shaped cover body 201 to open the piano cover 200. Since the piano cover 200 and the hinge rotating piece 400 are fixedly connected, the hinge rotating piece 400 will rotate axially around the pivot 304 until the piano cover 200 rotates to the vertical position. At this time, the slide rod 504 is pulled by the elastic force of the spring 308 and enters the locking groove 404. At the same time, the end of the L-shaped cover body 201 near the hinge rotating piece mounting hole 203 is in contact with the piano cover limiting groove 104 to lock the piano cover 200 in the vertical position. When it is necessary to close the piano cover 200, press the lever 502 to pull the slide rod 504 out of the locking groove 404. At this time, the piano cover 200 can rotate freely. Then slowly rotate the L-shaped cover body 201 to close the piano cover 200.

[0033] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A piano hinge mechanism comprising a hinge support (300) fixedly connected to a piano body (100), characterized in that, The hinge support (300) is rotationally connected with a hinge rotating piece (400), the hinge rotating piece (400) is fixedly connected with a piano cover plate (200), and the hinge support (300) is further provided with a pressing assembly (500).

2. A piano hinge mechanism according to claim 1, wherein The piano body (100) comprises a piano cover plate mounting groove (101), a hinge support plate (102), a hinge support mounting hole (103) and a piano cover plate limiting groove (104), the piano body (100) is provided with a piano cover plate mounting groove (101), the upper portion of the piano body (100) is further fixedly connected with a hinge support plate (102), a plurality of hinge support mounting holes (103) are formed in the two sides of the hinge support plate (102), and a piano cover plate limiting groove (104) is further formed in the hinge support plate (102).

3. The piano hinge mechanism of claim 1, wherein The piano cover plate (200) comprises an L-shaped cover plate body (201), a soft pad (202) and a hinge rotating piece mounting hole (203), the L-shaped cover plate body (201) is fixedly connected with a soft pad (202), and a plurality of hinge rotating piece mounting holes (203) are formed in the two sides of the L-shaped cover plate body (201).

4. A piano hinge mechanism according to claim 3, wherein The cross-sectional shape of the L-shaped cover plate body (201) near one end of the hinge rotating piece mounting hole (203) is consistent with that of the piano cover plate limiting groove (104).

5. The piano hinge mechanism of claim 1, wherein The hinge support (300) comprises a bottom support plate (301), a bottom fixed mounting hole (302), a side support plate (303), a rotating shaft (304), a horizontal sliding groove (305), an arc-shaped sliding groove (306), a spring support plate (307), a spring (308) and a fixed ring (309), a plurality of bottom fixed mounting holes (302) matched with the hinge support mounting holes (103) are formed in the bottom support plate (301), two side support plates (303) are symmetrically arranged on the surface of the bottom support plate (301), the rotating shaft (304) is fixedly connected to the outer side of the side support plate (303), the horizontal sliding groove (305) is further formed in the side support plate (303), the arc-shaped sliding groove (306) is formed in the end of the side support plate (303) away from the rotating shaft (304), the spring support plate (307) is fixedly connected between the two side support plates (303), the spring (308) is connected to the inner wall of the spring support plate (307), and the fixed ring (309) is connected to the end of the spring (308) away from the spring support plate (307).

6. The piano hinge mechanism of claim 1, wherein The hinge rotating piece (400) comprises a fixed mounting plate (401), a side rotating plate (402), a rotating shaft mounting hole (403), a locking groove (404) and a fixed mounting hole (405), a plurality of fixed mounting holes (405) matched with the hinge rotating piece mounting holes (203) are arranged on the fixed mounting plate (401), one side rotating plate (402) is arranged on each side of the fixed mounting plate (401), the rotating shaft mounting hole (403) matched with the rotating shaft (304) is arranged in the side rotating plate (402), and the locking groove (404) is further formed in the side rotating plate (402).

7. A piano hinge mechanism according to claim 6, wherein The pressing assembly (500) comprises a connecting plate (501), a pressing piece (502), connecting keys (503) and slide rods (504), the side of the connecting plate (501) is provided with the pressing piece (502), the bottom of the connecting plate (501) is symmetrically provided with two connecting keys (503), and the two connecting keys (503) are fixedly connected with two slide rods (504).

8. A piano hinge mechanism according to claim 7, wherein The slide rods (504) located on the front side are matched with the size of the horizontal sliding groove (305), the fixed ring (309) and the locking groove (404) respectively, and the slide rods (504) located on the rear side are matched with the shape of the arc-shaped sliding groove (306).

Images