Folding rotating shaft structure and folding piano comprising same

Abstract

The utility model provides a folding rotating shaft structure which comprises a rotating shaft and two rotating connecting pins connected with the rotating shaft in a rotating mode, the cross section of the rotating shaft is shaped like a Chinese character'hui ', two connecting holes are formed in the middle of the rotating shaft in a spaced mode, and one rotating connecting pin is arranged in each connecting hole. And the two ends of the rotary connecting pin extend out of the connecting holes. According to the folding rotating shaft structure, the two piano bodies to be folded are connected through the rotating connecting pins, the rotating shaft cannot protrude and can be completely contained in the piano bodies by arranging the two rotating connecting pins, the bottoms of the piano bodies are flat after the piano bodies are opened, and the piano can be flatly placed on a table top without adding foot pads.

Description

Technical Field

[0001] The utility model relates to the technical field of rotating shafts, in particular to a folding rotating shaft structure and a folding piano containing the rotating shaft structure. Background Art

[0002] The hinge, as the name implies, is an axis that must be used to connect the main parts of the product and is used to bear both bending moment and torque during rotation. The hinge structure of the folding piano currently on the market adopts a single hinge method, which will cause the glue position at the hinge to bulge, and the bottom of the piano body is uneven after it is opened, and a higher foot pad is needed to place the piano body flat on the table. Utility Model Content

[0003] The utility model aims to provide a folding shaft structure to solve the problem that the bottom of the existing folding piano is uneven after the piano body is opened.

[0004] The utility model provides a folding shaft structure, comprising a rotating shaft and two rotating connecting pins rotatably connected to the rotating shaft, the cross-section of the rotating shaft is a circular shape, two connecting holes are arranged at intervals in the middle of the rotating shaft, each of the connecting holes is provided with a rotating connecting pin, and both ends of the rotating connecting pin extend outside the connecting hole.

[0005] The above-mentioned folding shaft structure connects the two piano bodies to be folded by rotating the connecting pin, and by setting two rotating connecting pins, the rotating shaft will not bulge and can be completely accommodated inside the piano body. After the piano body is opened, the bottom is flat, and the piano can be placed flat on the table without adding foot pads.

[0006] The utility model also provides a folding piano, comprising two foldable piano bodies, wherein the two piano bodies are foldably connected via the two folding rotating shaft structures mentioned above.

[0007] Furthermore, the folded ends of the two piano bodies and the positions corresponding to each of the rotating shafts are provided with mounting grooves, and the positions corresponding to the mounting grooves and the two ends of the rotating connecting pin are respectively provided with assembly holes.

[0008] Furthermore, a clamping block is provided at the folding end of one of the piano bodies, and a clamping groove is provided at a position of the other piano body corresponding to the clamping block.

[0009] Furthermore, at least one positioning block is provided on the edge of one of the piano bodies, and a positioning groove is provided at a position of the other piano body corresponding to each of the positioning blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the folding shaft structure in the first embodiment of the utility model in the unfolded state;

[0011] Figure 2 for Figure 1 A schematic diagram of the structure of the folding shaft structure in a disassembled state;

[0012] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at the center circle A;

[0013] Figure 4 for Figure 1 A schematic diagram of the structure of the folding shaft structure in the folded state.

[0014] Description of main component symbols:

[0015] Rotation axis 10 Body 30 Positioning slot 33 Connection hole 11 Mounting holes 31 Card block 40 Rotating connecting pin 20 Card slot 32 Positioning block 50

[0016] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0017] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively with reference to the relevant drawings. Several embodiments of the utility model are given in the drawings. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0018] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0020] See also Figures 1 to 4 A folding shaft structure provided by an embodiment of the utility model includes a rotating shaft 10 and two rotating connecting pins 20 rotatably connected to the rotating shaft 10. The cross-section of the rotating shaft 10 is a circular shape. Two connecting holes 11 are spaced apart in the middle of the rotating shaft 10. Each of the connecting holes 11 is provided with a rotating connecting pin 20, and both ends of the rotating connecting pin 20 extend outside the connecting hole 11.

[0021] The above-mentioned folding shaft structure connects the two piano bodies 30 to be folded by rotating the connecting pin 20, and by setting two rotating connecting pins 30, the rotating shaft 10 will not bulge and can be completely accommodated inside the piano body 30. After the piano body 30 is opened, the bottom is flat, and the piano can be placed flat on the table without adding foot pads.

[0022] Please refer to Figures 1 to 4 A foldable piano provided by an embodiment of the utility model includes two foldable piano bodies 30, and the two piano bodies 30 are foldably connected through the two folding shaft structures mentioned above.

[0023] The above-mentioned foldable piano connects the two piano bodies 30 to be folded by rotating the connecting pin 20, and by setting two rotating connecting pins 30, the rotating shaft 10 will not protrude and can be completely accommodated inside the piano body 30. After the piano body 30 is opened, the bottom is flat, and the piano can be placed flat on the table without adding foot pads.

[0024] In one embodiment of the utility model, the folded ends of the two piano bodies 30 and the positions corresponding to each of the rotating shafts are provided with mounting grooves, and the mounting grooves and the positions corresponding to the two ends of the rotating connecting pin 20 are respectively provided with assembly holes 31, so that after the two piano bodies 30 are unfolded, the rotating shaft 10 can be completely accommodated in the mounting grooves, so that the bottom of the piano body 30 is flat after it is opened, and the piano can be placed flat on the table without adding foot pads.

[0025] In one embodiment of the utility model, a snap-in block 40 is provided at the folded end of one of the piano bodies 30, and a snap-in groove 32 is provided at a position corresponding to the snap-in block 40 of the other piano body 30, so that after the two piano bodies 30 are unfolded, the snap-in block 40 is snapped into the corresponding snap-in groove 32, thereby making the connection between the two piano bodies 30 more stable.

[0026] In one embodiment of the present invention, at least one positioning block 50 is provided at the edge of one of the piano bodies 30, and a positioning groove 33 is provided at a position corresponding to each positioning block 50 of the other piano body 30, so that the two piano bodies 30 can be more neatly connected when docked, thereby improving the convenience of use.

[0027] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A folding shaft structure, characterized in that: It includes a rotating shaft and two rotating connecting pins rotatably connected to the rotating shaft. The cross-section of the rotating shaft is a circular shape. Two connecting holes are spaced apart in the middle of the rotating shaft. Each of the connecting holes is provided with a rotating connecting pin, and both ends of the rotating connecting pin extend outside the connecting hole.

2. A foldable piano, comprising two foldable piano bodies, characterized in that: It comprises two piano bodies foldably connected via two folding hinge structures as claimed in claim 1.

3. The folding piano according to claim 2, characterized in that: The folding ends of the two piano bodies and the positions corresponding to each of the rotating shafts are provided with mounting grooves, and the positions corresponding to the mounting grooves and the two ends of the rotating connecting pins are respectively provided with assembly holes.

4. The folding piano according to claim 2, characterized in that: A clamping block is provided at the folding end of one of the piano bodies, and a clamping groove is provided at a position of the other piano body corresponding to the clamping block.

5. The folding piano according to claim 2, characterized in that: At least one positioning block is provided at the edge of one of the piano bodies, and a positioning groove is provided at a position of the other piano body corresponding to each of the positioning blocks.

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