Piano pedal convenient to install and replace

Abstract

The utility model discloses a piano pedal convenient to install and replace, which belongs to the technical field of piano accessories and comprises a pedal, three replacement plates are movably connected below the front end of the pedal, and the front ends of the replacement plates are movably connected with an adjusting plate device. Under the combined action of a first supporting rod, a rotating plate, a rotating rod, a special-shaped wheel, a replacing plate shell, an ejector rod, a pushing plate, a T-shaped protruding block, a T-shaped groove, a first spring, an ejector disc, a second supporting rod, a second spring, an inserting block, a driving plate, a crank and a clamp, an operator is prevented from touching and dismantling equipment by mistake, the stability of the equipment is ensured, meanwhile, an original bolt fixing mode is replaced, and the safety of the operator is improved. The piano pedal is more convenient to mount, the mounting efficiency of the piano pedal is improved, the position of the adjusting plate is moved and the overall length of the pressing plate is changed under the combined action of the knob, the rotating gear, the secondary rotating gear, the adjusting rod and the adjusting plate, so that the pedal can adapt to different crowds, and the use way is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of piano accessories, in particular to a piano pedal which is easy to install and replace. Background Art

[0002] An upright piano generally has three pedals, namely: the middle pedal, the left pedal, and the right pedal. The middle pedal has the function of weakening the sound, and this pedal is often pressed when practicing at home to avoid disturbing the neighbors too much.

[0003] The existing technology has the following problems:

[0004] However, the existing pianos are prone to damage due to users stepping on the piano pedals for a long time, so they may need to be replaced according to actual conditions. However, the existing piano pedals need to be fixed firmly and accurately positioned, and usually use bolts to fix the piano pedals directly to the piano pedal bracket. This fixing method requires staff to tighten the bolts, resulting in that when replacing the piano pedals, workers need to constantly turn the bolts, which is cumbersome and labor-intensive. At the same time, when manually turning the bolts, the bolts only move a slight distance after one circle, resulting in a long time required for the installation process of the piano pedals, thereby reducing the efficiency of the piano pedal installation. At the same time, different people use the piano, and each person has different requirements for the pedal length. Utility Model Content

[0005] The utility model provides a piano pedal which is easy to install and replace, so as to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A piano pedal which is easy to install and replace comprises a pedal, wherein three replacement plates are movably connected below the front end of the pedal, and an adjustment plate device is movably connected to the front end of the replacement plate.

[0008] A further improvement of the technical solution of the utility model is that the pedal comprises a pedal shell, three pedal brackets are fixedly connected to the top of the outer wall of the pedal shell, and three rotating plates are movably connected to the lower front end of the pedal shell.

[0009] A further improvement of the technical solution of the utility model is that: the replacement plate includes a rotating plate, the right end of the rotating plate is fixedly connected to a rotating rod, the outer wall of the rotating rod is fixedly connected to a special-shaped wheel near the central position, the left end of the outer wall of the rotating rod is movably connected to a replacement plate shell, the left end of the outer wall of the replacement plate shell is provided with a sliding groove, the inner wall of the sliding groove is slidingly connected to the outer wall of the special-shaped wheel, and the inner wall of the replacement plate shell is slidingly connected to the maximum radius of the special-shaped wheel; a through hole 1 is provided at the rear end of the inner wall of the replacement plate shell, and a push rod is slidably connected to the inner wall of the through hole 1 front and rear, and the front end of the push rod is tightly attached to the rear end of the outer wall of the special-shaped wheel.

[0010] A further improvement of the technical solution of the utility model lies in that: a push plate is fixedly connected to the rear end of the outer wall of the push rod, and T-shaped protrusions are fixedly connected to the left and right sides of the outer wall of the push plate, and two left-right symmetrical through holes are opened at the front end of the push plate, and a support rod 1 is movably connected to the inner walls of the two through holes 2, and the rear end of the support rod 1 is fixedly connected to the rear end of the inner wall of the rotating plate, and a spring 1 is sleeved on the outer wall of the support rod 1, and the front end of the spring 1 is fixedly connected to the rear end of the outer wall of the push plate, and the rear end of the spring 1 is fixedly connected to the rear end of the inner wall of the rotating plate, and T-slots are provided on the left and right sides of the inner wall of the rotating plate, and the inner wall of the T-slot is slidably connected to the outer wall of the push plate.

[0011] A further improvement of the technical solution of the utility model lies in that: the outer wall of the push rod located at the rear side of the replacement plate shell is fixedly connected to the top plate, the left and right outer walls of the top plate are fixedly connected to support rod 2, the outer wall of the support rod 2 is sleeved with spring 2, the two facing ends of the two springs 2 are fixedly connected to the left and right outer walls of the top plate, the two ends of the two springs 2 away from the top plate are fixedly connected to plug blocks, the outer wall of the push rod located at the rear of the top plate is fixedly connected to a driving plate, the left and right sides of the driving plate are movably connected with cranks, the ends of the two cranks away from the driving plate are movably connected to the plug blocks on the same side, and limiting grooves are provided on the left and right sides of the inner wall of the replacement plate shell, and the inner walls of the two limiting grooves are movably connected to the plug blocks on the same side.

[0012] A further improvement of the technical solution of the utility model is that: the adjusting plate device includes a knob, a torsion rod is arranged at the right end of the knob, the front end of the torsion rod passes through the left end shell of the replacement plate shell and is movably connected to the right end shell of the inner wall of the replacement plate shell, the torsion rod is located on the outer wall inside the replacement plate shell and is fixedly connected to two left-right symmetrical rotating gears, the bottom ends of the two rotating gears are meshed with secondary rotating gears, the central positions of the two secondary rotating gears are fixedly connected with a driven rod, the left and right ends of the driven rod are movably connected to the left and right inner walls of the replacement plate shell, the top ends of the two rotating gears and the bottom ends of the two secondary rotating gears are meshed with adjusting rods, and the top ends of the four adjusting rods are fixedly connected to an adjusting plate.

[0013] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0014] 1. The utility model provides a piano pedal that is easy to install and replace. Through the joint action of a support rod 1, a rotary plate, a rotating rod, a special-shaped wheel, a replacement plate shell, a push rod, a push plate, a T-shaped protrusion, a T-shaped groove, a spring 1, a top plate, a support rod 2, a spring 2, an insert block, a driving plate, a crank, and a card, an operator is prevented from accidentally touching the removal device, thereby ensuring the stability of the device. At the same time, the original fixing method of bolts is replaced, making the installation of the piano pedal more convenient and improving the installation efficiency of the piano pedal.

[0015] 2. The utility model provides a piano pedal which is easy to install and replace. The position of the adjusting plate is moved by the joint action of a knob, a rotating gear, a sub-rotating gear, an adjusting rod and an adjusting plate to change the overall length of the pedal, so that the pedal can adapt to different groups of people and expand the ways of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the pedal of the utility model;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the replacement plate of the utility model;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the rotating plate of the utility model;

[0020] Figure 5 It is an enlarged structural schematic diagram of the top plate of the utility model;

[0021] Figure 6 It is a schematic diagram of the cross-sectional structure of the adjustment plate device of the utility model;

[0022] Figure 7 It is an enlarged structural schematic diagram of the adjustment plate device of the utility model.

[0023] In the figure: 1, pedal; 2, replacement plate; 3, adjustment plate device; 11, pedal shell; 12, pedal bracket; 13, rotating plate; 20, support rod one; 21, rotating plate; 22, rotating rod; 23, special-shaped wheel; 24, replacement plate shell; 25, push rod; 26, push plate; 27, T-shaped protrusion; 28, T-shaped slot; 29, spring one; 31, knob; 32, rotating gear; 33, secondary rotating gear; 34, adjustment rod; 35, adjustment plate; 211, top plate; 212, support rod two; 213, spring two; 214, plug block; 215, driving plate; 216, crank. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods:

[0025] like Figure 1-5As shown, it includes a pedal 1, three replacement plates 2 are movably connected to the lower front end of the pedal 1, and an adjusting plate device 3 is movably connected to the front end of the replacement plate 2. The pedal 1 includes a pedal shell 11, and three pedal brackets 12 are fixedly connected to the top of the outer wall of the pedal shell 11. Three rotating plates 13 are movably connected to the lower front end of the pedal shell 11. The replacement plate 2 includes a rotating plate 21, and a rotating rod 22 is fixedly connected to the right end of the rotating plate 21. A special-shaped wheel 23 is fixedly connected to the outer wall of the rotating rod 22 near the central position. The left end of the outer wall of the rotating rod 22 is movably connected to a replacement plate shell 24, and the left end of the outer wall of the replacement plate shell 24 is opened. A sliding groove is provided, the inner wall of the sliding groove is slidably connected to the outer wall of the special-shaped wheel 23, and the inner wall of the replacement plate housing 24 is slidably connected to the maximum radius of the special-shaped wheel 23; a through hole 1 is provided at the rear end of the inner wall of the replacement plate housing 24, and a push rod 25 is slidably connected to the inner wall of the through hole 1, and the front end of the push rod 25 is tightly attached to the rear end of the outer wall of the special-shaped wheel 23, and a push plate 26 is fixedly connected to the rear end of the outer wall of the push rod 25, and the left and right sides of the outer wall of the push plate 26 are fixedly connected. Two through holes 2 are symmetrically provided at the front end of the push plate 26, and the inner walls of the two through holes 2 are movably connected to support rods 1 20, and support rods 1 2 The rear end of the support rod 20 is fixedly connected to the rear end of the inner wall of the rotating plate 13, the outer wall of the support rod 20 is sleeved with a spring 29, the front end of the spring 29 is fixedly connected to the rear end of the outer wall of the push plate 26, the rear end of the spring 29 is fixedly connected to the rear end of the inner wall of the rotating plate 13, the left and right sides of the inner wall of the rotating plate 13 are provided with T-shaped grooves 28, the inner wall of the T-shaped groove 28 is slidably connected to the outer wall of the push plate 26, the outer wall of the push rod 25 located on the rear side of the replacement plate housing 24 is fixedly connected to a top plate 211, the left and right outer walls of the top plate 211 are fixedly connected to support rods 212, and the outer wall of the support rods 212 is sleeved with a spring Two 213, the facing ends of the two springs 213 are fixedly connected to the left and right outer walls of the top plate 211, the ends of the two springs 213 away from the top plate 211 are fixedly connected to the plug blocks 214, the outer wall of the top rod 25 located behind the top plate 211 is fixedly connected to the driving plate 215, the left and right sides of the driving plate 215 are movably connected to the cranks 216, the ends of the two cranks 216 away from the driving plate 215 are movably connected to the plug blocks 214 on the same side, the inner walls of the replacement plate housing 24 are provided with limiting grooves on the left and right sides, and the inner walls of the two limiting grooves are movably connected to the plug blocks 214 on the same side;

[0026] When it is necessary to remove and replace the plate 2, align the special-shaped wheel 23 with the sliding groove on the left side of the replacement plate shell 24, then reach the inner wall of the replacement plate shell 24, and rotate the special-shaped wheel 23 through the rotating plate 21, so that the special-shaped wheel 23 pushes the radius of the push rod 25 to continuously increase, so that the push rod 25 moves backward, driving the plate 215 to make the crank 216 rotate, so that the plug block 214 contracts, so that the replacement plate 2 can be removed. After removal, the spring 213 and the spring 1 29 rebound to restore the position of the plug block 214 and the pushing plate 26. When it is necessary to install, it is only necessary to rotate the special-shaped wheel 23 to insert the replacement plate 2 into the rotating plate 13, and then rotate the special-shaped wheel 23, the equipment will automatically recover, and then pull out the special-shaped wheel 23. This design can prevent the removal device from being accidentally touched, ensure the stability of the equipment, and at the same time replace the original bolt fixing method, making the installation of the piano pedal more convenient and improving the installation efficiency of the piano pedal.

[0027] like Figure 6-7 As shown, the utility model provides a piano pedal that is easy to install and replace. The adjusting plate device 3 includes a knob 31. A torsion bar is arranged at the right end of the knob 31. The front end of the torsion bar penetrates the left end shell of the replacement plate housing 24 and is movably connected to the right end shell of the inner wall of the replacement plate housing 24. The torsion bar is located on the outer wall of the replacement plate housing 24 and is fixedly connected to two left-right symmetrical rotating gears 32. The bottom ends of the two rotating gears 32 are meshed with secondary rotating gears 33. The central positions of the two secondary rotating gears 33 are fixedly connected with driven rods. The left and right ends of the driven rods are movably connected to the inner walls of the left and right sides of the replacement plate housing 24. The top ends of the two rotating gears 32 and the bottom ends of the two secondary rotating gears 33 are meshed with adjusting rods 34. The top ends of the four adjusting rods 34 are fixedly connected to adjusting plates 35.

[0028] When the length of the adjusting plate device 3 needs to be adjusted, it is only necessary to rotate the knob 31, and the rotating gear 32 thereafter will drive the secondary rotating gear 33 to rotate, and together drive the adjusting rod 34 to translate left and right, so that the pedal can adapt to different groups of people and expand the ways of use.

[0029] The following is a detailed description of the working principle of the piano pedal that is easy to install and replace.

[0030] like Figure 1-7As shown, when it is necessary to remove the replacement plate 2, the shaped wheel 23 is aligned with the sliding groove on the left side of the replacement plate shell 24, and then reaches the inner wall of the replacement plate shell 24, and the shaped wheel 23 is rotated by the rotating plate 21, so that the radius of the shaped wheel 23 pushing the push rod 25 is continuously increased, so that the push rod 25 moves backward, driving the plate 215 to rotate the crank 216, so that the plug block 214 contracts, so that the replacement plate 2 can be removed. After removal, the spring 213 and the spring 1 29 rebound to restore the position of the plug block 214 and the push plate 26. When it is necessary to install, it is only necessary to rotate the shaped wheel 23 to replace it. Insert the changing plate 2 into the rotating plate 13, and then rotate the shaped wheel 23, the device will automatically recover, and then pull out the shaped wheel 23. This design can prevent the removal of the device by mistake, ensure the stability of the device, and replace the original bolt fixing method, making the installation of the piano pedal more convenient and improving the installation efficiency of the piano pedal. When the length of the adjusting plate device 3 needs to be adjusted, only the knob 31 needs to be rotated, and the subsequent rotating gear 32 will drive the secondary rotating gear 33 to rotate, and together drive the left and right translation of the adjusting rod 34, so that the pedal can adapt to different people and expand the usage.

[0031] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A piano pedal that is easy to install and replace, comprising a pedal (1), characterized in that: Three replacement plates (2) are movably connected below the front end of the pedal (1), and an adjustment plate device (3) is movably connected to the front end of the replacement plate (2); The pedal (1) comprises a pedal housing (11), three pedal brackets (12) are fixedly connected to the top of the outer wall of the pedal housing (11), three rotating plates (13) are movably connected to the lower front end of the pedal housing (11), the replacement plate (2) comprises a rotating plate (21), the right end of the rotating plate (21) is fixedly connected to a rotating rod (22), the outer wall of the rotating rod (22) is fixedly connected to a special-shaped wheel (23) near the center, and the outer wall of the rotating rod (22) is The end is movably connected with a replacement plate shell (24), the left end of the outer wall of the replacement plate shell (24) is provided with a sliding groove, the inner wall of the sliding groove is slidably connected to the outer wall of the special-shaped wheel (23), and the inner wall of the replacement plate shell (24) is slidably connected to the maximum radius of the special-shaped wheel (23); the rear end of the inner wall of the replacement plate shell (24) is provided with a through hole 1, the inner wall of the through hole 1 is slidably connected with a push rod (25) in a front-rear manner, and the front end of the push rod (25) is tightly attached to the rear end of the outer wall of the special-shaped wheel (23); The adjusting plate device (3) comprises a knob (31), a torsion bar is arranged at the right end of the knob (31), the front end of the torsion bar passes through the left end shell of the replacement plate shell (24) and is movably connected to the right end shell of the inner wall of the replacement plate shell (24), the torsion bar is located on the outer wall of the replacement plate shell (24) and is fixedly connected to two left-right symmetrical rotating gears (32), the bottom ends of the two rotating gears (32) are meshedly connected to the secondary rotating gears (33), the central positions of the two secondary rotating gears (33) are fixedly connected to a driven rod, the left and right ends of the driven rod are movably connected to the left and right inner walls of the replacement plate shell (24), the top ends of the two rotating gears (32) and the bottom ends of the two secondary rotating gears (33) are meshedly connected to the adjusting rods (34), and the top ends of the four adjusting rods (34) are fixedly connected to the adjusting plate (35).

2. A piano pedal that is easy to install and replace according to claim 1, characterized in that: The rear end of the outer wall of the push rod (25) is fixedly connected with a push plate (26), and the left and right sides of the outer wall of the push plate (26) are fixedly connected with T-shaped protrusions (27), the front end of the push plate (26) is provided with two left-right symmetrical through holes, the inner walls of the two through holes are movably connected with a support rod (20), the rear end of the support rod (20) is fixedly connected to the rear end of the inner wall of the rotating plate (13), the outer wall of the support rod (20) is sleeved with a spring (29), the front end of the spring (29) is fixedly connected to the rear end of the outer wall of the push plate (26), the rear end of the spring (29) is fixedly connected to the rear end of the inner wall of the rotating plate (13), and the left and right sides of the inner wall of the rotating plate (13) are provided with T-shaped grooves (28), and the inner wall of the T-shaped groove (28) is slidably connected to the outer wall of the push plate (26).

3. A piano pedal that is easy to install and replace according to claim 1, characterized in that: The outer wall of the push rod (25) located at the rear side of the replacement plate housing (24) is fixedly connected to a top plate (211), and the left and right outer walls of the top plate (211) are fixedly connected to support rods (212), and the outer wall of the support rods (212) is sleeved with springs (213), and the two ends of the two springs (213) facing each other are fixedly connected to the left and right outer walls of the top plate (211), and the ends of the two springs (213) away from the top plate (211) are fixedly connected to the plug blocks (2 14), the outer wall of the push rod (25) located behind the top plate (211) is fixedly connected to a driving plate (215), and the left and right sides of the driving plate (215) are movably connected to cranks (216), and the ends of the two cranks (216) away from the driving plate (215) are movably connected to the plug block (214) on the same side, and the left and right sides of the inner wall of the replacement plate shell (24) are provided with limiting grooves, and the inner walls of the two limiting grooves are movably connected to the plug block (214) on the same side.

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