CN216980101U - Key cap fixed knot constructs behind upright piano - Google Patents
Key cap fixed knot constructs behind upright piano Download PDFInfo
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- CN216980101U CN216980101U CN202220272218.2U CN202220272218U CN216980101U CN 216980101 U CN216980101 U CN 216980101U CN 202220272218 U CN202220272218 U CN 202220272218U CN 216980101 U CN216980101 U CN 216980101U
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Abstract
The utility model relates to the technical field of upright pianos, and discloses a rear keycover fixing structure of an upright piano, which comprises a hinge fixedly arranged on the front side of the upper surface of a rear keycover body, wherein a moving rod is movably inserted in the middle of the back surface of the rear keycover body, the front end of the moving rod is fixedly connected with a squeezing sheet, the squeezing sheet is connected with the rear keycover body in a sliding manner, the outer surface of the moving rod is sleeved with a return spring, and the rear side of the outer surface of the moving rod is fixedly connected with a connecting block. This keymat fixed knot constructs behind vertical piano injects the inside of spacing groove through the control stopper, can realize carrying out effectual fixing between the keymat body and the vertical piano body is straight, has effectually prevented because of the user when removing or transporting the vertical piano body, and inevitable can take place vibrations, causes the top of back keymat body emergence to move very easily for the phenomenon that can take place hard collision takes place between the surface of back keymat body and piano body.
Description
Technical Field
The utility model relates to the technical field of upright pianos, in particular to a fixing structure for a rear key cover of an upright piano.
Background
Through retrieval, Chinese patent No. 201620808727.7 discloses a fixing structure for a rear key cover of an upright piano, which relates to the technical field of upright pianos, in particular to a fixing structure for a rear key cover of an upright piano.
Under the prior art, most upright piano's back fallboard all passes through the hinge with the preceding fallboard and links to each other basically, the back fallboard all is direct movable cover on piano body upper surface basically, it is effectual fixed to be difficult for realizing that the user carries out between back fallboard and the piano body, when the user is moving or transporting upright piano, inevitable can take place vibrations, because the back fallboard is direct movable cover on piano body upper surface, consequently cause the top-bottom pitch of back fallboard to take place very easily, make hard collision can take place between the surface of back fallboard and piano body.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In view of the deficiencies of the prior art, the present invention provides a rear fallboard fixing structure for an upright piano, which solves the problems set forth in the background art.
(II) technical scheme
In order to achieve the purpose, the utility model provides the following technical scheme: a rear key cover fixing structure of a vertical piano comprises a hinge fixedly mounted on the front side of the upper surface of a rear key cover body, a moving rod is movably inserted in the middle of the back surface of the rear key cover body, a squeezing piece is fixedly connected to the front end of the moving rod and is in sliding connection with the rear key cover body, a return spring is sleeved on the outer surface of the moving rod, a connecting block is fixedly connected to the rear side of the outer surface of the moving rod, a hand buckle is arranged on the upper surface of the connecting block, a connecting frame is movably sleeved at the bottom of the outer side surface of the connecting block, a limiting groove is formed in the outer side surface of the connecting frame, a limiting block is movably inserted at the bottom of the outer side surface of the connecting block and penetrates through the outer side surface of the connecting block to be inserted into the limiting groove, a moving block is fixedly connected to the inner side surface of the limiting block, the moving block is in sliding connection with the connecting block, and a hand-held rod is fixedly connected to the middle of the back surface of the moving block, the handheld rod penetrates through the back face of the connecting block, a short rod is fixedly connected to the middle of the inner side face of the moving block, and a limiting spring is sleeved on the outer surface of the short rod.
Preferably, the front side of the lower surface of the connecting frame is fixedly connected with a fixing block, and the middle of the outer side surface of the fixing block is movably inserted with a threaded nail.
Preferably, the bottom of the back of the connecting block is provided with a through groove, and the inner diameter of the through groove is matched with the outer diameter of the handheld rod.
Preferably, the number of the return springs is two, and the two sets of the return springs and the limit springs are made of silicon-manganese spring steel.
Preferably, the number of the limiting grooves and the limiting blocks is set to be two, and the inner diameter of each limiting groove is matched with the outer diameter of each limiting block.
Preferably, the limiting block, the moving block, the handheld rod and the short rod are made of stainless steel.
(III) advantageous effects
Compared with the prior art, the utility model provides a rear key cover fixing structure of an upright piano, which has the following beneficial effects:
1. this keymat fixed knot constructs behind vertical piano injects the inside of spacing groove through the control stopper, can realize carrying out effectual fixing between the keymat body and the vertical piano body is straight, has effectually prevented because of the user when removing or transporting the vertical piano body, and inevitable can take place vibrations, causes the top of back keymat body emergence to move very easily for the phenomenon that can take place hard collision takes place between the surface of back keymat body and piano body.
2. This keymat fixed knot constructs behind vertical piano, pass the fixed block through the control screw nail and rotate the inside of advancing the vertical piano body at last, can realize that the user is quick with the connection frame install on the surface of vertical piano body assigned position, labour saving and time saving, user control hand-held pole drives the movable block and drives the inside that the spacing groove was extracted along the inside of connecting block and can remove the fixing between back keymat body and the vertical piano body afterwards, made things convenient for the staff to open the back keymat body.
3. This key lid fixed knot constructs behind vertical piano, through the reaction force that spacing spring is produced by the movable block extrusion, sustainable extrudees the movable block to the outside for what the stopper can be firmly inserts in the inside of spacing groove, the effectual stability of connecting between connecting block and the link of having guaranteed has improved the practicality of the device when using.
Drawings
FIG. 1 is a schematic rear view of a vertical cross-sectional structure of the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention;
FIG. 3 is a partially exploded view of the present invention.
In the figure: 1. a rear keycap body; 2. a hinge; 3. a travel bar; 4. extruding the sheet; 5. a return spring; 6. connecting blocks; 7. c, hand buckling; 8. a connecting frame; 9. a limiting groove; 10. a limiting block; 11. a moving block; 12. a hand-held wand; 13. a short bar; 14. a limiting spring; 15. a fixed block; 16. and (5) screwing a thread.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a fixing structure of a rear key cover of an upright piano comprises a hinge 2 fixedly arranged on the front side of the upper surface of a rear key cover body 1, a moving rod 3 is movably inserted in the middle of the back surface of the rear key cover body 1, a pressing sheet 4 is fixedly connected with the front end of the moving rod 3, the pressing sheet 4 is slidably connected with the rear key cover body 1, a return spring 5 is sleeved on the outer surface of the moving rod 3, a connecting block 6 is fixedly connected with the rear side of the outer surface of the moving rod 3, a hand buckle 7 is arranged on the upper surface of the connecting block 6, a connecting frame 8 is movably sleeved at the bottom of the outer side surface of the connecting block 6, a limiting groove 9 is arranged on the outer side surface of the connecting frame 8, a limiting block 10 is movably inserted at the bottom of the outer side surface of the connecting block 6, the limiting block 10 is controlled to be inserted into the limiting groove 9, so that the rear key cover body 1 and the upright piano body can be effectively fixed, and the rear key cover body is effectively prevented from being moved or transported by a user, unavoidable vibration can occur, the back key cover body 1 is easily caused to be overturned up and down, so that the phenomenon of hard collision can occur between the back key cover body 1 and the surface of the piano body, the limiting block 10 penetrates through the outer side surface of the connecting block 6 and is inserted into the limiting groove 9, the inner side surface of the limiting block 10 is fixedly connected with a moving block 11, the moving block 11 is in sliding connection with the connecting block 6, the middle part of the back surface of the moving block 11 is fixedly connected with a handheld rod 12, the handheld rod 12 penetrates through the back surface of the connecting block 6, the middle part of the inner side surface of the moving block 11 is fixedly connected with a short rod 13, the outer surface of the short rod 13 is sleeved with a limiting spring 14, the reactive force generated by the extrusion of the moving block 11 through the limiting spring 14 can continuously extrude the moving block 11 to the outer side, so that the limiting block 10 can be firmly inserted into the limiting groove 9, and the stability of connection between the connecting block 6 and the connecting frame 8 is effectively ensured, the practicability of the device is improved when in use.
The utility model is convenient for workers to quickly install the connecting frame 8 on the surface of the designated position of the piano body, therefore, the front side of the lower surface of the connecting frame 8 is fixedly connected with a fixed block 15, the middle part of the outer side surface of the fixed block 15 is movably inserted with a screw 16, the screw 16 is finally rotated into the interior of the upright piano body through the fixing block 15 by control, can realize that the user will connect the quick surface of installing at vertical piano body assigned position of frame 8, time saving and labor saving, user control hand-held pole 12 drives movable block 11 afterwards and drives the inside that stopper 10 extracted spacing groove 9 along the inside of connecting block 6 and can remove the fixing between back key cover body 1 and the vertical piano body, it opens back key cover body 1 to have made things convenient for the staff, control screw 16 passes the inside that fixed block 15 rotated into the piano body, it is fixed to realize, the staff has made things convenient for the quick surface of installing at piano body assigned position of connecting frame 8.
In the utility model, in order to facilitate the control of the hand-held rod 12 by the worker to move along the inside of the connecting block 6, the bottom of the back surface of the connecting block 6 is provided with the through groove, the inner diameter of the through groove is matched with the outer diameter of the hand-held rod 12, and the control of the hand-held rod 12 by the worker to move along the inside of the connecting block 6 is facilitated.
In order to prolong the service life of the return springs 5 and the limiting springs 14, the number of the return springs 5 is two, the two sets of the return springs 5 and the limiting springs 14 are made of silicon-manganese spring steel, the springs made of the silicon-manganese spring steel have good return effect and are not easy to deform, and the service life of the return springs 5 and the limiting springs 14 is prolonged.
In the utility model, in order to facilitate the insertion of the limiting blocks 10 into the limiting grooves 9, the number of the limiting grooves 9 and the number of the limiting blocks 10 are set into two groups, and the inner diameter of the limiting grooves 9 is matched with the outer diameter of the limiting blocks 10, so that the insertion of the limiting blocks 10 into the limiting grooves 9 is facilitated.
In order to ensure that the limiting block 10, the moving block 11, the handheld rod 12 and the short rod 13 are not easily damaged in use, the limiting block 10, the moving block 11, the handheld rod 12 and the short rod 13 are made of stainless steel, the stainless steel is high in hardness and not easily deformed, and the limiting block 10, the moving block 11, the handheld rod 12 and the short rod 13 are not easily damaged in use.
The electrical components in the document are electrically connected with an external master controller and 220V mains supply, and the master controller can be a computer or other conventional known devices for playing a role in control.
When in use, the control hand-held rod 12 drives the moving block 11 and the limiting block 10 to move inwards along the inside of the connecting block 6, meanwhile, the moving block 11 extrudes the limiting spring 14 inwards until the limiting block 10 is pulled out of the limiting groove 9, the fixing between the connecting block 6 and the connecting frame 8 is released, then the connecting frame 8 is taken down on the outer side surface of the connecting block 6, then the connecting frame 8 is placed on the surface of the designated position of the upright piano body, then the threaded nail 16 is controlled to rotate along the inside of the fixing block 15 until the threaded nail 16 rotates into the inside of the designated position of the upright piano body, the quick fixing of the connecting frame 8 is completed, then the hinge 2 is controlled to connect the rear key cover body 1 and the front key cover on the upright piano body, then the hand buckle 7 is controlled to drive the connecting block 6 to move towards the rear side, meanwhile, the connecting block 6 drives the moving rod 3 and the extrusion piece 4 to move towards the rear side, meanwhile, the pressing piece 4 presses the return spring 5 towards the rear side until the connecting block 6 moves to a designated position, then the rear fallboard body 1 is controlled to cover the upper surface of the upright piano body, then the control of the hand buckle 7 is released, meanwhile, the reaction force generated by the pressing of the return spring 5 can drive the pressing piece 4 and the moving rod 3 to move towards the front side along the inside of the rear fallboard body 1, meanwhile, the moving rod 3 drives the connecting block 6 to move towards the front side, when the limiting block 10 contacts with the connecting frame 8, as the contact surface of the limiting block 10 and the connecting frame 8 is a cambered surface, hard collision cannot occur, meanwhile, the connecting frame 8 can also press the limiting block 10 towards the inner side, meanwhile, the limiting block 10 drives the moving block 11 and the hand-held rod 12 to move towards the inner side along the inside of the connecting block 6, and simultaneously the moving block 11 drives the short rod 13 to press the limiting spring 14 towards the inner side, until the limiting block 10 moves to the inside of the connecting block 6, when the connecting block 6 enters the inside of the connecting frame 8, the limiting block 10 and the limiting groove 9 are in a horizontal position, meanwhile, the limiting spring 14 is pushed to generate reaction force to drive the moving block 11 and the limiting block 10 to move towards the outer side, until the limiting block 10 penetrates through the connecting block 6 to be inserted into the limiting groove 9, so that the rear keycover body 1 and the vertical piano body are effectively fixed, the handheld rod 12 is controlled to drive the moving block 11 to drive the limiting block 10 to move towards the inner side along the inside of the connecting block 6, until the limiting block 10 is taken out of the limiting groove 9, the fixing between the connecting block 6 and the connecting frame 8 is released, the fixing between the rear keycover body 1 and the vertical piano body is indirectly released, and the rear keycover body 1 can be conveniently and quickly opened by an operator.
To sum up, this keymat fixed knot constructs behind vertical piano injects the inside of spacing groove 9 through control stopper 10, can realize carrying out effectual fixing between back keymat body 1 and the vertical piano body is straight, has effectually prevented because of the user removes or transports the vertical piano body, and inevitable can take place vibrations, causes the top down of back keymat body 1 emergence very easily to move for the phenomenon that hard collision can take place between the surface of back keymat body 1 and piano body takes place.
This key lid fixed knot constructs behind vertical piano, pass fixed block 15 through control screw nail 16 and rotate the inside of advancing the vertical piano body at last, can realize that the user is with the quick surface of installing at the vertical piano body assigned position of connecting frame 8, time saving and labor saving, user control hand-held lever 12 drives movable block 11 and drives the inside that stopper 10 extracted spacing groove 9 along the inside of connecting block 6 afterwards and can relieve the fixing between back key lid body 1 and the vertical piano body, made things convenient for the staff to open back key lid body 1.
This keycover fixed knot constructs behind vertical piano, through spacing spring 14 by the reaction force that the movable block 11 extrusion produced, sustainable extrudees the movable block 11 to the outside for stopper 10 can be firmly insert in the inside of spacing groove 9, the effectual stability of connecting between connecting block 6 and the connecting frame 8 of having guaranteed, improved the practicality of the device when using. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a fallboard fixed knot constructs behind upright piano, includes hinge (2) of fixed mounting at back fallboard body (1) upper surface front side, its characterized in that: the middle part of the back face of the rear key cover body (1) is movably spliced with a moving rod (3), the front end of the moving rod (3) is fixedly connected with an extrusion piece (4), the extrusion piece (4) is in sliding connection with the rear key cover body (1), a return spring (5) is sleeved on the outer surface of the moving rod (3), a connecting block (6) is fixedly connected to the rear side of the outer surface of the moving rod (3), a hand buckle (7) is arranged on the upper surface of the connecting block (6), a connecting frame (8) is movably sleeved at the bottom of the outer side face of the connecting block (6), a limiting groove (9) is arranged on the outer side face of the connecting frame (8), a limiting block (10) is movably spliced at the bottom of the outer side face of the connecting block (6), the limiting block (10) penetrates through the outer side face of the connecting block (6) to be inserted into the limiting groove (9), and a moving block (11) is fixedly connected to the inner side face of the limiting block (10), the movable block (11) is connected with the connecting block (6) in a sliding mode, a handheld rod (12) is fixedly connected to the middle of the back face of the movable block (11), the handheld rod (12) penetrates through the back face of the connecting block (6), a short rod (13) is fixedly connected to the middle of the inner side face of the movable block (11), and a limiting spring (14) is sleeved on the outer surface of the short rod (13).
2. A rear fallboard fixing structure of an upright piano as recited in claim 1, wherein: the front side of the lower surface of the connecting frame (8) is fixedly connected with a fixing block (15), and the middle part of the outer side surface of the fixing block (15) is movably inserted with a threaded nail (16).
3. A rear fallboard fixing structure of an upright piano as recited in claim 1, wherein: the bottom of the back of the connecting block (6) is provided with a through groove, and the inner diameter of the through groove is matched with the outer diameter of the handheld rod (12).
4. A rear fallboard fixing structure of an upright piano as recited in claim 1, wherein: the number of the return springs (5) is two, and the manufacturing materials of the two sets of the return springs (5) and the limiting springs (14) are all silicon-manganese spring steel.
5. A rear fallboard fixing structure of an upright piano as recited in claim 1, wherein: the quantity of spacing groove (9) and stopper (10) all sets up to two sets of, the internal diameter of spacing groove (9) and the external diameter looks adaptation of stopper (10).
6. A rear fallboard fixing structure of an upright piano as recited in claim 1, wherein: the limiting block (10), the moving block (11), the handheld rod (12) and the short rod (13) are made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220272218.2U CN216980101U (en) | 2022-02-10 | 2022-02-10 | Key cap fixed knot constructs behind upright piano |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220272218.2U CN216980101U (en) | 2022-02-10 | 2022-02-10 | Key cap fixed knot constructs behind upright piano |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216980101U true CN216980101U (en) | 2022-07-15 |
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ID=82354684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220272218.2U Active CN216980101U (en) | 2022-02-10 | 2022-02-10 | Key cap fixed knot constructs behind upright piano |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216980101U (en) |
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2022
- 2022-02-10 CN CN202220272218.2U patent/CN216980101U/en active Active
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