CN201281935Y - Piano, piano hinge structure - Google Patents
Piano, piano hinge structure Download PDFInfo
- Publication number
- CN201281935Y CN201281935Y CNU2008200465687U CN200820046568U CN201281935Y CN 201281935 Y CN201281935 Y CN 201281935Y CN U2008200465687 U CNU2008200465687 U CN U2008200465687U CN 200820046568 U CN200820046568 U CN 200820046568U CN 201281935 Y CN201281935 Y CN 201281935Y
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- CN
- China
- Prior art keywords
- hinge
- piano
- leaf
- rotation hole
- mandrel
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Pivots And Pivotal Connections (AREA)
Abstract
The utility model discloses a piano and a piano hinge structure. The piano comprises a piano body, a top cover and a hinge; the main hinge leaf of the hinge is fixedly connected with the frame carrier of the piano body, and the auxiliary hinge leaf of the hinge is fixedly connected with the top cover; both the main hinge leaf and the auxiliary hinge leaf are provided with a group of rotating holes with consistent axle cores, a mandrel penetrates the rotating holes to enables the main hinge leaf to be hinged with the auxiliary hinge leaf; and a convex part is arranged on the main hinge leaf, and the tail end of the convex part is propped against the rotating holes of the auxiliary hinge leaf. The utility model can reduce the problem that the hinge is separated from the frame carrier of the piano body and enhances the durability of the piano.
Description
Technical field
The utility model relates to a kind of piano, especially relates to the piano hinge structure that a kind of mandrel that prevents hinge comes off, and the piano with this hinge structure.
Background technology
Piano comprises piano body and top cover, and top cover generally is to be fixed on the backboard of piano body one side by hinge.When needs use piano, only need draw the commentaries on classics top cover, top cover can be that rotate at the center by hinge; When not needing to use piano, draw the commentaries on classics top cover that itself and piano body are coincide.
Yet, because present hinge structure defective,, be easy to cause the mandrel of hinge from rotation hole, to break away from, thereby make top cover and the disengaging of piano body when the user constantly repeats to draw when changeing top cover or long-term the use, not only influence the attractive in appearance of piano, more make the user use inconvenience.
The utility model content
Technical problem to be solved in the utility model is to propose a kind of piano and piano hinge structure, can reduce the problem of the back of the body frame disengaging of hinge and piano, improves the durability of piano, convenient user.
For solving technical matters of the present utility model, the utility model discloses a kind of piano, comprising: piano body, top cover and hinge; The back of the body frame of the fixedly connected described piano body of main leaf of hinge of described hinge, the fixedly connected described top cover of secondary leaf of hinge; And described main leaf of hinge is equipped with one group of consistent rotation hole of axle center with described secondary leaf of hinge, and it is hinged with described main leaf of hinge and described secondary leaf of hinge to run through described rotation hole by mandrel; Described main leaf of hinge is provided with protuberance, and the setting that offsets of the rotation hole of the end of described protuberance and described secondary leaf of hinge.
More excellent, one of them of a described main leaf of hinge rotation hole is or/and one of them of a described secondary leaf of hinge rotation hole is provided with internal thread; And described mandrel is provided with the external thread that is screwed with described internal thread.
More excellent, described mandrel has the end portion that is crushed and exposes outside described rotation hole.
More excellent, described mandrel is provided with several pads.
More excellent, be respectively equipped with one group of circular hole that supplies screw to place on described main leaf of hinge and the described secondary leaf of hinge.
In addition, the utility model also discloses a kind of piano hinge structure, comprising: main leaf of hinge, secondary leaf of hinge and mandrel; Described main leaf of hinge is equipped with one group of consistent rotation hole of axle center with described secondary leaf of hinge, and it is hinged with described main leaf of hinge and described secondary leaf of hinge to run through described rotation hole by mandrel; Described main leaf of hinge is provided with protuberance, and the setting that offsets of the rotation hole of the end of described protuberance and described secondary leaf of hinge.
Compared with prior art, the utlity model has following beneficial effect:
The utility model is provided with protuberance by main leaf of hinge, and the end of described protuberance and the rotation hole of the described secondary leaf of hinge setting that offsets, in the time of can effectively reducing piano and open, the technical matters that the back of the body frame of hinge and piano breaks away from easily, improved the durability of piano, and protuberance is butted on the rotation hole of secondary leaf of hinge mutually, and rotation hole can't be expanded outwardly, thereby has prevented mandrel to break away from hinge and top cover is separated with the piano body.
Description of drawings
Fig. 1 is the planar structure synoptic diagram of the utility model piano;
Fig. 2 is the planar structure synoptic diagram of hinge under open mode among Fig. 1;
Fig. 3 is the enlarged diagram of local A among Fig. 2;
Fig. 4 is the planar structure synoptic diagram of another embodiment of hinge under the state that closes among Fig. 1.
Embodiment
With reference to shown in Figure 1.Piano of the present utility model comprises: piano body 10, top cover 20 and be connected piano body 10 and top cover 20 between hinge 30.
In conjunction with shown in Figure 2, described hinge 30 comprises main leaf of hinge 31, secondary leaf of hinge 32 and mandrel 33; Described main leaf of hinge 31 is equipped with one group of consistent rotation hole of axle center with described secondary leaf of hinge 32, and it is hinged with described main leaf of hinge 31 and described secondary leaf of hinge 32 to run through described rotation hole by mandrel 33.And, the back of the body frame 11 of described main leaf of hinge 31 fixedly connected described piano bodies 10, described secondary leaf of hinge 32 fixedly connected described top covers 20
Key is, when the utility model changes described top cover 20 in order to prevent to draw, mandrel 33 breaks away from rotation hole and causes described top cover 20 to break away from the described piano body 10 of connection, so the utility model described main leaf of hinge 31 is provided with protuberance 311, and the setting that offsets of the rotation hole of the end of described protuberance 311 and described secondary leaf of hinge 32.For example, described protuberance 311 can be to protrude the independent component that is provided with from the surface of described main leaf of hinge 31, also can be afterwards formed by the thickness thickening of described main leaf of hinge 31 correspondence positions, but be not as limit.
With reference to shown in Figure 3, the end portion that described mandrel 33 is exposed outside described rotation hole is flattened, and makes its end portion can't pass described rotation hole, thereby can prevent that described mandrel 33 from coming off from described rotation hole.
Therefore, when drawing when changeing described top cover 20, described secondary leaf of hinge 32 be that described top cover 20 rotations are followed at the center with described mandrel 33; And because protuberance 311 described in the rotation process contacts at the rotation hole of described secondary leaf of hinge 32, the rotation hole of described secondary leaf of hinge 32 can not become flexible, thereby can increase the degree of adhesion between hinge and the piano, prevent to cause described top cover 20 to break away from the described piano body 10 of connection owing to described mandrel 33 breaks away from rotation hole.
In conjunction with shown in Figure 4, for preventing that further described mandrel 33 breaks away from rotation hole, present embodiment at one of them rotation hole of described main leaf of hinge 31 or/and one of them rotation hole of described secondary leaf of hinge 32 is provided with internal thread 34, and described mandrel 33 is provided with the external thread 331 that is screwed with described internal thread 34, described mandrel 33 and described rotation hole are screwed togather and is unlikely to break away from easily.Such as, Figure 3 shows that described secondary leaf of hinge 32 rotation hole topmost is provided with internal thread, and described mandrel 33 is provided with the external thread that is screwed with it.
And, in order to improve the dirigibility that hinge rotates, avoid 2 adjacent rotation holes to produce interference mutually in rotation process because of displacement takes place, so be provided with several pads at described mandrel 33, each pad is arranged between 2 adjacent rotation holes.
During use, only need to place the one group of circular hole 312 and 322 that supplies screw to place that is respectively equipped with on described main leaf of hinge 31 and the described secondary leaf of hinge 32 respectively, described main leaf of hinge 31 is separately fixed on described backboard 11 and the described top cover 20 with described secondary leaf of hinge 32 by screw.
The above only is an embodiment of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1, a kind of piano comprises: piano body (10), top cover (20) and hinge (30); The back of the body frame (11) of the fixedly connected described piano body of main leaf of hinge (31) (10) of described hinge (30), the fixedly connected described top cover of secondary leaf of hinge (32) (20); And described main leaf of hinge (31) is equipped with one group of consistent rotation hole of axle center with described secondary leaf of hinge (32), and it is hinged with described main leaf of hinge (31) and described secondary leaf of hinge (32) to run through described rotation hole by mandrel (33);
It is characterized in that: one of them rotation hole of described main leaf of hinge (31) is or/and one of them rotation hole of described secondary leaf of hinge (32) is provided with internal thread (34); And described mandrel (33) is provided with the external thread (331) that is screwed with described internal thread (34).
2, piano according to claim 1 is characterized in that: described main leaf of hinge (31) is provided with protuberance (311), and the setting that offsets of the rotation hole of the end of described protuberance (311) and described secondary leaf of hinge (32).
3, piano according to claim 1 is characterized in that: described mandrel (33) has the end portion that is crushed and exposes outside described rotation hole.
4, piano according to claim 1 is characterized in that: described mandrel (33) is provided with several pads.
5, piano according to claim 1 is characterized in that: be respectively equipped with one group of circular hole (312 and 322) that supplies screw to place on described main leaf of hinge (31) and the described secondary leaf of hinge (32).
6, a kind of piano hinge structure comprises: main leaf of hinge (31), secondary leaf of hinge (32) and mandrel (33); Described main leaf of hinge (31) is equipped with one group of consistent rotation hole of axle center with described secondary leaf of hinge (32), and it is hinged with described main leaf of hinge (31) and described secondary leaf of hinge (32) to run through described rotation hole by mandrel (33);
It is characterized in that: one of them rotation hole of described main leaf of hinge (31) is or/and one of them rotation hole of described secondary leaf of hinge (32) is provided with internal thread (34); And described mandrel (33) is provided with the external thread (331) that is screwed with described internal thread (34).
7, piano hinge structure according to claim 6 is characterized in that: described main leaf of hinge (31) is provided with protuberance (311), and the setting that offsets of the rotation hole of the end of described protuberance (311) and described secondary leaf of hinge (32).
8, piano hinge structure according to claim 6 is characterized in that: described mandrel (33) has the end portion that is crushed and exposes outside described rotation hole.
9, piano hinge structure according to claim 6 is characterized in that: described mandrel (33) is provided with several pads.
10, piano hinge structure according to claim 6 is characterized in that: be respectively equipped with one group of circular hole (312,322) that supplies screw to place on described main leaf of hinge (31) and the described secondary leaf of hinge (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200465687U CN201281935Y (en) | 2008-04-18 | 2008-04-18 | Piano, piano hinge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200465687U CN201281935Y (en) | 2008-04-18 | 2008-04-18 | Piano, piano hinge structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201281935Y true CN201281935Y (en) | 2009-07-29 |
Family
ID=40928803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200465687U Expired - Lifetime CN201281935Y (en) | 2008-04-18 | 2008-04-18 | Piano, piano hinge structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201281935Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100941A (en) * | 2014-07-30 | 2014-10-15 | 岑仲杰 | Movable pedestal of light pole |
-
2008
- 2008-04-18 CN CNU2008200465687U patent/CN201281935Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100941A (en) * | 2014-07-30 | 2014-10-15 | 岑仲杰 | Movable pedestal of light pole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510388, Guangzhou, Guangdong, Liwan District province flower road, South fisheries West Road Patentee after: Guangzhou Pearl River Piano Group Co., Ltd. Address before: 510388, Guangzhou, Guangdong, Liwan District province flower road, South fisheries West Road Patentee before: Guangzhou Pearl River Piano Group Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090729 |
|
| CX01 | Expiry of patent term |