CN211479629U

CN211479629U - Soft sound footboard of piano extension

Info

Publication number: CN211479629U
Application number: CN201920366727.XU
Authority: CN
Inventors: 吴敬
Original assignee: Binzhou University
Current assignee: Binzhou University
Priority date: 2019-03-21
Filing date: 2019-03-21
Publication date: 2020-09-11
Anticipated expiration: 2029-03-21

Abstract

The utility model discloses a gentle sound footboard of piano extension, which comprises a fixed base, one side fixed mounting of fixing base has the casing, the spacing groove has been seted up to one side that the fixing base was kept away from to the casing, the movable groove has all been seted up on the top inner wall of spacing groove and the bottom inner wall, same movable rod is installed to two movable groove internal rotations, the fixed cover in outside of movable rod is equipped with the bracing piece, one side that the fixing base was kept away from to the casing is provided with gentle sound footboard body, one side that gentle sound footboard body is close to the casing has seted up the sliding tray, slidable mounting has the sliding block in the sliding tray, one side and bracing piece fixed connection that the sliding block is close to the casing. The utility model discloses simple structure, convenient operation, what can be convenient fast makes up gentle sound footboard body and casing and separates, is favorable to the maintenance to gentle sound footboard body, has reduced staff's the work degree of difficulty, so satisfied people's demand.

Description

Soft sound footboard of piano extension

Technical Field

The utility model relates to a gentle sound footboard technical field especially relates to a gentle sound footboard of piano extension.

Background

Acoustic pianos employ various systems for transmitting energy from finger or actuator input force to acoustic, vibratory force, the transmission system accepting a network of rods, bolsters and hammers in the finger or actuator input through a collection of pivot rods. A piano can produce a wide range of sound volumes, and a larger piano can further expand this range to include very loud sounds, but in apartment or school settings where it is desirable to avoid disturbing the population, for example, chinese patent application No. 201480058948.0 a piano selectively playable in normal and flexo modes has a plurality of piano keys and action mechanisms including a wippen assembly, and a plurality of piano hammers, a soft pedal system including a soft pedal and a hammer back rail mounted for movement between normal and flexo mode positions, and a steel lift rail mounted for movement between a normal mode position with key lifting contacts spaced apart and a soft mode position with keys and key bar assemblies in contact and lifted, the device being relatively complex in construction and prone to damage to the soft pedal during use, so being unable to meet the needs of the individual.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an extended soft pedal for a piano.

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

a piano extension soft sound pedal comprises a fixed seat, wherein a shell is fixedly arranged on one side of the fixed seat, a limiting groove is formed in one side of the shell, which is far away from the fixed seat, movable grooves are formed in the inner walls of the top and the bottom of the limiting groove, the same movable rod is rotatably arranged in the two movable grooves, a supporting rod is fixedly sleeved on the outer side of the movable rod, a soft sound pedal body is arranged on one side of the shell, which is far away from the fixed seat, a sliding groove is formed in one side of the soft sound pedal body, which is close to the shell, a sliding block is slidably arranged in the sliding groove, one side of the sliding block, which is close to the shell, is fixedly connected with the supporting rod, clamping grooves are formed in the inner walls of the top and the bottom of the sliding groove, a limiting hole is formed in the fixed block, two limiting rods are slidably, sliding mounting has same locating lever in two constant head tanks, the spout has been seted up on one side inner wall in spacing hole, the equal fixed mounting in one side of two gag lever posts has the slider, and two sliders all with spout sliding connection, all set up threaded hole on two sliders, the internal thread in two threaded hole revolves to opposite, all seted up the rotation groove on the one side inner wall that two spouts are close to each other, two rotate the inslot and all rotate and install the dwang, and two dwangs run through corresponding screw hole respectively and with corresponding screw hole threaded connection.

Preferably, the fixed cover in the outside of dwang is equipped with the first gear that is located the spout, has seted up the gear groove on one side inner wall of spout, has all seted up the constant head tank on the one side inner wall that two gear grooves are close to each other, and the axis of rotation is installed to the constant head tank internal rotation.

Preferably, the rotation hole has all been seted up to one side that two sliding blocks kept away from each other, rotates the hole and is linked together with the gear groove, and constant head tank, gear groove and rotate downthehole rotation and install same fixed axle.

Preferably, the one end that two fixed axles kept away from each other extends to the outside of corresponding sliding block respectively and fixed mounting has the handle, and the outside of two fixed axles is all fixed the cover and is equipped with the second gear, all winds on two second gears and is equipped with the rack, and the second gear passes through the rack and is connected with corresponding first gear drive respectively.

Preferably, one side of each of the two limiting rods, which is close to each other, is fixedly provided with the same limiting spring sleeved on the outer side of the positioning rod.

Preferably, the two rotating grooves are fixedly provided with outer rings of bearings, and the two rotating rods are respectively and fixedly connected with the inner rings of the corresponding bearings.

The utility model has the advantages that:

through the mutual matching of the fixing seat, the shell, the limiting groove, the movable rod, the supporting rod, the soft pedal body, the sliding groove, the sliding block, the clamping groove, the limiting hole, the limiting rod, the positioning groove, the positioning rod, the sliding block, the threaded hole, the rotating groove, the rotating rod and the sliding groove, the soft pedal body and the shell can be quickly and conveniently combined and separated, the maintenance of the soft pedal body is facilitated, the working difficulty of workers is reduced, so the requirement of people is met, in the use, the handle is rotated, the handle drives the fixing shaft to rotate, the fixing shaft drives the second gear to rotate, the second gear drives the first gear to rotate through the rack, the first gear drives the rotating rod to rotate, the rotating rod drives the two sliding blocks to move towards one side close to each other, the sliding block drives the limiting rod to move, and the limiting rod drives the positioning groove, two gag lever posts compress spacing spring, spacing spring energy-absorbing makes in the gag lever post shifts out the draw-in groove, the utility model discloses simple structure, convenient operation, what can be convenient fast makes up gentle sound footboard body and casing and separates, is favorable to the maintenance to gentle sound footboard body, has reduced staff's the work degree of difficulty, so has satisfied people's demand.

Drawings

Fig. 1 is a schematic front view of an extended soft pedal for a piano according to the present invention;

fig. 2 is a schematic structural view of part a of an extended soft pedal for a piano according to the present invention;

fig. 3 is the utility model provides a B part schematic structure of piano extension soft pedal.

In the figure: 1 fixing base, 2 casings, 3 spacing grooves, 4 movable grooves, 5 movable rods, 6 supporting rods, 7 soft sound footboard bodies, 8 sliding grooves, 9 sliding blocks, 10 clamping grooves, 11 spacing holes, 12 spacing rods, 13 positioning grooves, 14 positioning rods, 15 sliding blocks, 16 threaded holes, 17 rotating grooves, 18 rotating rods and 19 sliding grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a piano extension soft pedal comprises a fixed seat 1, a casing 2 is fixedly installed on one side of the fixed seat 1, a limit groove 3 is formed on one side of the casing 2 away from the fixed seat 1, movable grooves 4 are formed on the top inner wall and the bottom inner wall of the limit groove 3, the same movable rod 5 is rotatably installed in the two movable grooves 4, a support rod 6 is fixedly sleeved on the outer side of the movable rod 5, a soft pedal body 7 is arranged on one side of the casing 2 away from the fixed seat 1, a sliding groove 8 is formed on one side of the soft pedal body 7 close to the casing 2, a sliding block 9 is slidably installed in the sliding groove 8, one side of the sliding block 9 close to the casing 2 is fixedly connected with the support rod 6, clamping grooves 10 are formed on the top inner wall and the bottom inner wall of the sliding groove 8, a limit hole 11 is, and the ends of the two limit rods 12 which are far away from each other are respectively clamped with the corresponding clamping grooves 10, the ends of the two limit rods 12 which are close to each other are respectively provided with a positioning groove 13, the same positioning rod 14 is arranged in the two positioning grooves 13 in a sliding manner, the inner wall of one side of the limit hole 11 is provided with a sliding groove 19, one side of the two limit rods 12 is fixedly provided with a sliding block 15, the two sliding blocks 15 are respectively connected with the sliding groove 19 in a sliding manner, the two sliding blocks 15 are respectively provided with a threaded hole 16, the internal threads in the two threaded holes 16 are opposite in rotating direction, the inner wall of one side of the two sliding grooves 19 which are close to each other is provided with a rotating groove 17, the two rotating grooves 17 are respectively rotatably provided with rotating rods 18, and the two rotating rods 18 respectively penetrate through the corresponding threaded holes 16 and are in threaded connection with the corresponding, The soft sound pedal body 7, the sliding groove 8, the sliding block 9, the clamping groove 10, the limiting hole 11, the limiting rod 12, the positioning groove 13, the positioning rod 14, the sliding block 15, the threaded hole 16, the rotating groove 17, the rotating rod 18 and the sliding groove 19 are matched with each other, the soft sound pedal body 7 and the shell 2 can be quickly and conveniently combined and separated, the maintenance of the soft sound pedal body 7 is facilitated, and the working difficulty of workers is reduced, so that the requirements of people are met, in the use process, the handle is rotated, the handle drives the fixed shaft to rotate, the fixed shaft drives the second gear to rotate, the second gear drives the first gear to rotate through the rack, the first gear drives the rotating rod 18 to rotate, the rotating rod 18 drives the two sliding blocks 15 to move towards one side close to each other, the sliding block 15 drives the limiting rod 12 to move, the limiting rod 12 drives the positioning groove 13 to move, two gag lever post 12 compression limiting spring, limiting spring energy-absorbing make gag lever post 12 shift out in draw-in groove 10, the utility model discloses simple structure, convenient operation, what can be convenient fast makes up gentle sound footboard body 7 and casing 2 and separates, is favorable to the maintenance to gentle sound footboard body 7, has reduced staff's the work degree of difficulty, so has satisfied people's demand.

In the utility model, a first gear wheel positioned in the sliding groove 19 is fixedly sleeved on the outer side of the rotating rod 18, a gear groove is arranged on the inner wall of one side of the sliding groove 19, a positioning groove is arranged on the inner wall of one side of two gear grooves which are close to each other, a rotating shaft is rotationally arranged in the positioning groove, rotating holes are arranged on one side of two sliding blocks 9 which are far away from each other, the rotating holes are communicated with the gear groove, the same fixing shaft is rotationally arranged in the positioning groove, the gear groove and the rotating holes, one end of the two fixing shafts which are far away from each other extends to the outer side of the corresponding sliding block 9 respectively and is fixedly provided with a handle, second gears are fixedly sleeved on the outer sides of the two fixing shafts, racks are wound on the two second gears, the second gears are respectively in transmission connection with the corresponding first gear wheels through the racks, a limiting, the outer rings of the bearings are fixedly arranged in the two rotating grooves 17, the two rotating rods 18 are respectively and fixedly connected with the inner rings of the corresponding bearings, and the soft pedal body 7 can be quickly and conveniently combined and separated with the shell 2 under the mutual matching of the fixed seat 1, the shell 2, the limiting groove 3, the movable groove 4, the movable rod 5, the supporting rod 6, the soft pedal body 7, the sliding groove 8, the sliding block 9, the clamping groove 10, the limiting hole 11, the limiting rod 12, the positioning groove 13, the positioning rod 14, the sliding block 15, the threaded hole 16, the rotating groove 17, the rotating rod 18 and the sliding groove 19, so that the maintenance of the soft pedal body 7 is facilitated, the working difficulty of workers is reduced, the demands of people are met, in use, the handle is rotated, the handle drives the fixed shaft to rotate, the fixed shaft drives the second gear to rotate, the second gear drives the first gear to rotate through the rack, first gear drive dwang 18 rotates, and dwang 18 drives two sliders 15 and removes to one side that is close to each other, and slider 15 drives gag lever post 12 and removes, and gag lever post 12 drives constant head tank 13 and removes, and two gag lever posts 12 compress spacing spring, spacing spring energy-absorbing makes gag lever post 12 shift out in the draw-in groove 10, the utility model discloses simple structure, convenient operation, can be fast convenient make up gentle sound footboard body 7 and casing 2 and separate, be favorable to the maintenance to gentle sound footboard body 7, reduced staff's the work degree of difficulty, so satisfied people's demand.

The working principle is as follows: in the use, rotate the handle, the handle drives the fixed axle and rotates, the fixed axle drives the second gear and rotates, the second gear drives first gear through the rack and rotates, first gear drives dwang 18 and rotates, dwang 18 drives two sliders 15 and removes to the one side that is close to each other, slider 15 drives gag lever post 12 and removes, gag lever post 12 drives constant head tank 13 and removes, two gag lever posts 12 compress spacing spring, spacing spring energy-absorbing, make gag lever post 12 shift out in draw-in groove 10, thereby realized making up and separating gentle sound footboard body 7 and casing 2 quick convenient, be favorable to the maintenance to gentle sound footboard body 7, staff's the work degree of difficulty has been reduced, so people's demand has been satisfied.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The piano expansion soft pedal comprises a fixing seat (1) and is characterized in that a shell (2) is fixedly mounted on one side of the fixing seat (1), a limiting groove (3) is formed in one side, far away from the fixing seat (1), of the shell (2), movable grooves (4) are formed in the inner wall of the top and the inner wall of the bottom of the limiting groove (3), the same movable rod (5) is rotatably mounted in the two movable grooves (4), a supporting rod (6) is fixedly sleeved on the outer side of the movable rod (5), a soft pedal body (7) is arranged on one side, far away from the fixing seat (1), of the shell (2), a sliding groove (8) is formed in one side, close to the shell (2), of the soft pedal body (7), a sliding block (9) is slidably mounted in the sliding groove (8), one side, close to the shell (2), is fixedly connected with the supporting rod (6), clamping grooves (10) are formed in the inner wall of, the fixing block is provided with a limiting hole (11), two limiting rods (12) are arranged in the limiting hole (11) in a sliding manner, one ends of the two limiting rods (12) far away from each other are respectively clamped with the corresponding clamping grooves (10), one ends of the two limiting rods (12) close to each other are respectively provided with a positioning groove (13), the two positioning grooves (13) are internally provided with the same positioning rod (14) in a sliding manner, the inner wall of one side of the limiting hole (11) is provided with a sliding groove (19), one sides of the two limiting rods (12) are respectively and fixedly provided with a sliding block (15), the two sliding blocks (15) are respectively and slidably connected with the sliding groove (19), the two sliding blocks (15) are respectively provided with a threaded hole (16), the internal threads in the two threaded holes (16) are opposite in rotating direction, the inner wall of one side of the two sliding grooves (19) close to each other is provided with, and the two rotating rods (18) respectively penetrate through the corresponding threaded holes (16) and are in threaded connection with the corresponding threaded holes (16).

2. The piano expansion soft pedal according to claim 1, wherein a first gear located in the sliding groove (19) is fixedly sleeved on the outer side of the rotating rod (18), a gear groove is formed in one inner wall of the sliding groove (19), positioning grooves are formed in the inner walls, close to each other, of the two gear grooves, and a rotating shaft is rotatably mounted in each positioning groove.

3. The piano extension soft pedal according to claim 1, wherein the two sliding blocks (9) are provided with rotation holes at the sides away from each other, the rotation holes are communicated with the gear grooves, and the same fixed shaft is rotatably installed in the positioning groove, the gear grooves and the rotation holes.

4. A piano extension soft pedal according to claim 3, wherein the ends of the two fixed shafts away from each other extend to the outer sides of the corresponding sliding blocks (9) respectively and are fixedly provided with handles, the outer sides of the two fixed shafts are fixedly provided with second gears, the two second gears are respectively provided with racks, and the second gears are respectively in transmission connection with the corresponding first gears through the racks.

5. The piano extension soft pedal according to claim 1, wherein one side of the two limiting rods (12) close to each other is fixedly provided with a limiting spring sleeved on the outer side of the positioning rod (14).

6. A piano extended soft pedal according to claim 1, wherein outer rings of bearings are fixedly installed in both of the two rotation grooves (17), and the two rotation levers (18) are fixedly connected to inner rings of the corresponding bearings, respectively.