CN220651621U - Rear keycap fixing structure of upright piano - Google Patents

Abstract

The utility model discloses a rear keycap fixing structure of an upright piano, which belongs to the technical field of upright pianos and comprises a rear keycap and two side plates positioned at two ends of the rear keycap, wherein the two ends of the rear keycap are detachably arranged on the two side plates through fastening components; the fastening assembly comprises a handle vertically penetrating through the rear keycap and in sliding connection with the rear keycap, and a limiting insert block arranged in a sliding mode along the horizontal direction, wherein the limiting insert block is inserted into a limiting groove formed in the side plate through an elastic piece, and the limiting insert block can be pulled out of the limiting groove through the handle. According to the utility model, the handle and the limit plug block supported by the elastic piece are connected together by the connecting rope, the locking state between the rear key cover and the side plate can be released by manually pulling the handle, then the rear key cover can be quickly lifted and detached by directly using the handle, and as a shielding object does not exist above the rear key cover, the worker has sufficient space to perform the operation, and the quick disassembly of the rear key cover is facilitated.

Description

Rear keycap fixing structure of upright piano

Technical Field

The utility model belongs to the technical field of upright pianos, and particularly relates to a rear keycap fixing structure of an upright piano.

Background

The rear keycap is an important component of the upright piano, and is generally hinged to the keycap and detachably mounted on the side plate of the piano.

The Chinese patent publication No. CN216980101U discloses a rear keycap fixing structure of an upright piano, which comprises a hinge fixedly arranged on the front side of the upper surface of a rear keycap body, wherein a movable rod is movably inserted in the middle of the back of the rear keycap body, the front end of the movable rod is fixedly connected with an extrusion sheet, the extrusion sheet is in sliding connection with the rear keycap body, a return spring is sleeved on the outer surface of the movable rod, and a connecting block is fixedly connected with the rear side of the outer surface of the movable rod. This key cap fixed knot constructs behind vertical piano inserts the inside of spacing groove through control stopper, can realize carrying out effectual fixed with between back key cap body and the vertical piano body is straight, effectually prevented because of the user removes or when transporting the vertical piano body, can avoid taking place vibrations, cause the top-and-bottom of back key cap body to take place to pitch very easily for the phenomenon that can take place hard collision between the surface of back key cap body and piano body takes place.

In the above technical scheme, although the effective fixation is realized between the rear keycap body and the upright piano body, the structure for fixing the rear keycap body in the scheme is arranged at the rear end of the rear keycap body, and the rear end of the rear keycap body is generally positioned in the piano, so that a user does not have enough space to disassemble and assemble, or the user cannot simply and conveniently realize the quick disassembly of the rear keycap body, which brings trouble to practical use.

Disclosure of Invention

The utility model aims at: in order to solve the problems in the background art, a rear keycap fixing structure of an upright piano is proposed.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a back key cap fixed knot of vertical piano constructs, includes back key cap and is located two curb plates at back key cap both ends, the both ends of back key cap are all through fastening assembly demountable installation on two curb plates; the fastening assembly comprises a handle vertically penetrating through the rear keycap and in sliding connection with the rear keycap and a limiting plug block arranged in a sliding manner along the horizontal direction, a supporting block supporting the rear keycap is fixed on the side plate, the limiting plug block is inserted into a limiting groove formed in the side plate through an elastic piece, and the limiting plug block can be pulled out of the limiting groove through the upper handle.

The fastening assembly further comprises an accommodating box with an upward opening and a box cover arranged at the position of the opening of the accommodating box, the accommodating box is fixed in a through hole formed in the rear key cover, the handle is slidably connected to the box cover, and the bottom end of the handle is located inside the accommodating box.

A connecting rope is fixedly connected between the bottom end of the handle and the limiting plug block, and penetrates through a round hole formed in the storage box.

The handle comprises a grip and a limiting rod which are arranged in parallel, and a connecting rod which is fixed between the grip and the limiting rod.

The upper surface of lid has seted up the storage tank, the hand groove has all been seted up at the top of storage tank inner wall both sides.

The upper surface of the storage box, the upper surface of the box cover and the upper surface of the rear key cover are positioned on the same plane.

A guide rod is fixed on one side face of the storage box, and the limiting plug block is connected to the guide rod in a sliding mode.

The guide wheel is installed on the inner wall surface of receiver, and this guide wheel is connected with the rope roll.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. according to the utility model, the handle and the limit plug block supported by the elastic piece are connected together by using the connecting rope, the handle is only needed to be manually pulled up, when the handle is pulled up to the highest state, the limit plug block is withdrawn from the inside of the limit groove, the locking state between the rear key cover and the side plate is released, then the rear key cover can be quickly lifted by directly using the handle to be detached, the operation is simple, and the worker has enough space to perform the operation, so that the quick disassembly and assembly of the rear key cover are facilitated.

2. In the utility model, the upper surface of the storage box, the upper surface of the box cover and the upper surface of the rear key cover are positioned on the same plane, so that when the rear key cover is not dismounted, the upper surface of the rear key cover is a flat plane, no protruding part exists, and the whole attractive appearance is good.

Drawings

Fig. 1 is a schematic view showing the overall structure of a rear keycap fixing structure of an upright piano according to the present utility model;

fig. 2 is a schematic view showing a partial structure of a rear keycap fixing structure of an upright piano according to the present utility model;

fig. 3 is a schematic view showing a partial sectional structure of a rear keycap fixing structure of an upright piano according to the present utility model;

fig. 4 is a schematic structural view of a fastening assembly for a rear keycap fixing structure of an upright piano according to the present utility model;

fig. 5 is a schematic sectional view of a fixing structure fastening assembly for a rear keycap of an upright piano according to the present utility model.

Legend description: 1. a rear key cover; 11. a through hole; 2. a side plate; 21. a limit groove; 22. a support block; 3. a fastening assembly; 31. a storage box; 311. a round hole; 32. a box cover; 321. a storage groove; 322. a hand groove; 33. a handle; 331. a grip; 332. a connecting rod; 333. a limit rod; 34. limiting plug blocks; 35. a connecting rope; 36. a guide rod; 37. a guide wheel; 38. an elastic member.

Detailed Description

The utility model will now be described with reference to specific examples.

As shown in fig. 1, the rear keycap fixing structure of the upright piano of the present embodiment comprises a rear keycap 1 and two side plates 2 located at both ends of the rear keycap 1, both ends of the rear keycap 1 are detachably mounted on the two side plates 2 through fastening members 3, and the specific structure of the fastening members 3 is described in detail below.

As shown in fig. 1 to 5, the fastening assembly 3 includes a storage box 31 with an upward opening, a box cover 32 installed at the opening position of the storage box 31, a handle 33 vertically penetrating the box cover 32 and slidably connected with the box cover 32, a limit insert 34 slidably arranged along the horizontal direction, a connecting rope 35, a guide rod 36, a guide wheel 37 and an elastic member 38, the bottom end of the handle 33 is positioned in the storage box 31, a support block 22 for supporting the rear key cover 1 is fixed on the side plate 2, when the upper surface of the support block 22 is attached to the lower surface of the rear key cover 1, the limit insert 34 can be just inserted into a limit groove 21 formed on the side plate 2 through the elastic member 38, at this time, the upper surface of the limit insert 34 is attached to the inner top wall surface of the limit groove 21, the limit insert 34 can be pulled out from the limit groove 21 through the pull-up handle 33, and in this embodiment, the elastic member 38 adopts a compression spring; the materials of the other components of the fastening assembly 3 are not particularly limited, and for example, the storage box 31 and the box cover 32 may be made of the same material as the rear key cover 1, or other materials may be used.

In the above scheme, the handle 33 and the limit insert block 34 supported by the elastic member 38 are connected together by the connecting rope 35, the handle 33 is only needed to be manually pulled up, when the handle 33 is pulled up to the highest state, the limit insert block 34 is withdrawn from the inside of the limit groove 21, the locking state between the rear key cover 1 and the side plate 2 is released, then the rear key cover 1 can be quickly lifted by directly using the handle 33 to be detached, the operation is simple, and as no shielding object exists above the rear key cover 1, the worker has enough space to perform the operation, and the quick detachment of the rear key cover 1 is facilitated.

As shown in fig. 4 to 5, the handle 33 includes a grip 331 and a limit lever 333 which are disposed in parallel, and a connecting rod 332 which is fixed between the grip 331 and the limit lever 333, in this embodiment, the connecting rod 332 has two, the grip 331 and the limit lever 333, and the two connecting rods 332 form a rectangular frame structure, the limit lever 333 is used to limit the height of the grip 331 extending out of the upper surface of the lid 32, so as to avoid the separation of the grip 331 from the lid 32, and it should be noted that, since the height of the grip 331 extending out of the upper surface of the lid 32 is equal to the horizontal movement distance of the limit insert 34, it is necessary to ensure that the height of the grip 331 extending out of the upper surface of the lid 32 is greater than the length of the limit insert 34 inserted into the limit slot 21, so that the limit insert 34 can completely withdraw from the limit slot 21 when the grip 331 is lifted to the highest position, and the locking state between the key lid 1 and the side plate 2 is released.

As shown in fig. 4 to 5, the guide rod 36 is fixed on a side surface of the storage box 31, the limiting plug 34 is slidably connected to the guide rod 36, and in this embodiment, the elastic member 38 is sleeved on the guide rod 36, so that the elastic member 38 can be prevented from being bent along a radial direction thereof after being stressed.

As shown in fig. 5, the guide wheel 37 is mounted on the inner wall surface of the storage box 31, and the guide wheel 37 is connected with the connecting rope 35 in a rolling manner, so that friction force between the connecting rope 35 and the round hole 311 can be reduced, and abrasion of the connecting rope 35 can be reduced.

As shown in fig. 1 to 3, in order to improve the aesthetic property of the whole rear key cover 1, the storage box 31 is fixed in the through hole 11 formed in the rear key cover 1, the storage groove 321 for storing the grip 331 is formed in the upper surface of the box cover 32, the hand grooves 322 are formed in the tops of both sides of the inner wall of the storage groove 321, and when in use, the grip 331 can be pulled out from the storage groove 321 through the hand grooves 322, and the upper surface of the storage box 31, the upper surface of the box cover 32 and the upper surface of the rear key cover 1 are located on the same plane, so that when the rear key cover 1 is not dismounted, the upper surface of the rear key cover 1 is a flat plane without protruding parts, and the whole aesthetic property is good.

The application method of the embodiment is as follows: normally, the limiting plug block 34 is plugged into the limiting groove 21 under the elastic action of the elastic piece 38, and the rear keycap 1 and the side plate 2 are in a locking state at the moment, namely the rear keycap 1 is fixedly connected with the side plate 2; when the rear key cover 1 needs to be detached, since the connecting rope 35 is fixedly connected between the bottom end of the handle 33 and the limit plug block 34, and the connecting rope 35 penetrates through the round hole 311 formed in the storage box 31, at this time, the handle 33 is pulled up, the handle 33 gradually extends out from the storage box 31, when the handle 33 is pulled up to the highest state, the limit plug block 34 is also withdrawn from the limit groove 21, the locking state between the rear key cover 1 and the side plate 2 is released, and then the handle 33 is directly utilized to rapidly lift the rear key cover 1 to detach the rear key cover.

Claims (8)

1. The utility model provides a back key cap fixed knot of vertical piano constructs, includes back key cap (1) and two curb plates (2) that are located back key cap (1) both ends, its characterized in that, the both ends of back key cap (1) are all through fastening assembly (3) demountable installation on two curb plates (2); the fastening assembly (3) comprises a handle (33) which vertically penetrates through the rear keycap (1) and is in sliding connection with the rear keycap and a limiting insert block (34) which is arranged in a sliding manner along the horizontal direction, a supporting block (22) which supports the rear keycap (1) is fixed on the side plate (2), the limiting insert block (34) is inserted into a limiting groove (21) formed in the side plate (2) through an elastic piece (38), and the limiting insert block (34) can be pulled out from the limiting groove (21) through the upper handle (33).

2. The rear keycap fixing structure of an upright piano according to claim 1, wherein the fastening assembly (3) further comprises a storage box (31) with an upward opening and a box cover (32) mounted at the opening position of the storage box (31), the storage box (31) is fixed in a through hole (11) formed in the rear keycap (1), the handle (33) is slidably connected to the box cover (32), and the bottom end of the handle (33) is located inside the storage box (31).

3. The rear keycap fixing structure of an upright piano according to claim 2, wherein a connecting rope (35) is fixedly connected between the bottom end of the handle (33) and the limiting insert (34), and the connecting rope (35) penetrates through a round hole (311) formed in the storage box (31).

4. The rear keycap fixing structure of an upright piano according to claim 2, wherein said handle (33) comprises a grip (331) and a stopper (333) arranged in parallel, and a link (332) fixed between the grip (331) and the stopper (333).

5. The structure for fixing the rear keycap of an upright piano according to claim 2, wherein the upper surface of the lid (32) is provided with a receiving groove (321), and the tops of both sides of the inner wall of the receiving groove (321) are provided with hand grooves (322).

6. The rear key cover fixing structure of upright piano according to claim 2, characterized in that the upper surface of said receiving box (31), the upper surface of said lid (32) and the upper surface of said rear key cover (1) are located on the same plane.

7. The rear keycap fixing structure of an upright piano of claim 2, wherein a guide rod (36) is fixed to one side surface of the receiving box (31), and the limit plug (34) is slidably connected to the guide rod (36).

8. The rear key cover fixing structure of an upright piano according to claim 2, wherein a guide wheel (37) is mounted on the inner wall surface of said receiving box (31), and said guide wheel (37) is connected with a connecting rope (35) in a rolling manner.