Pressing plate structure for fixing piano mark
By designing air holes and air inlets on the pressure plate of the piano mark, the gas flow blows away debris on the fabric pad, solving the problems of unstable pressure on the pressure plate and damage to the surface of the mark, achieving more stable down pressure and longer service life.
Patent Information
- Application Number
- CN202420603883.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-03-27
AI Technical Summary
When the existing piano marks are pressed, the downpressure stability may be affected by the wood chip particles adsorbed on the felt, and may even cause damage to the surface of the mark.
A liftable pressure plate structure is designed, with a fabric cushion layer on the lower plate surface of the pressure plate, and air outlets and air inlets are opened on the pressure plate to blow away the adsorbed debris on the fabric cushion layer through the flow of gas.
It effectively avoids damage to the mark by the adsorbed debris on the fabric pad, ensures the stable downward pressure of the pressure plate on the mark, and extends the service life of the mark.
Smart Images
Figure CN222762656U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pianos, in particular to a pressing plate structure for fixing piano marks. Background Art
[0002] The piano mark, also called the piano resonance plate, refers to the sound source part of the piano. During the processing of the piano mark, the string bridges on the mark need to be sloped, punched and nailed. For this purpose, the soundboard part of the mark needs to be fixed on the workbench and pressed and fixed with a pressing plate.
[0003] In order to prevent the pressing plate from damaging the mark when it is pressed directly on the mark, a layer of felt is set on the lower surface of the pressing plate. When the string code is sloped and punched, wood chips will be generated. In some cases, larger wood chips may be adsorbed on the felt. If the pressing plate presses the felt adsorbed with larger wood chips on the mark, it may affect the stability of the pressing plate on the mark, and even damage the surface of the mark. In view of the above problems, the existing pressing plate structure is improved. Summary of the invention
[0004] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a pressing plate structure for fixing a piano mark, which facilitates the removal of debris adsorbed on the cloth cushion layer of the pressing plate and prevents the debris adsorbed on the cloth cushion layer from damaging the mark.
[0005] Technical solution: To achieve the above-mentioned purpose, the utility model provides a pressing plate structure for fixing a piano mark, including a lifting pressing plate, a cloth cushion layer on the lower plate surface of the pressing plate, a plurality of air outlet holes on the pressing plate, and the air outlet ends of the air outlet holes face the cloth cushion layer on the lower plate surface of the pressing plate; an air inlet is also provided on the pressing plate, and the air inlet is connected to the plurality of air outlet holes; when gas is input into the air inlet, the air outlet holes discharge gas toward the cloth cushion layer to blow away debris adsorbed on the cloth cushion layer.
[0006] Furthermore, a cloth bag is sleeved on the pressing plate, and the area where the cloth bag faces the lower plate surface of the pressing plate is the cloth cushion layer; a mounting opening is provided on the cloth bag, and the mounting opening faces the air inlet.
[0007] Furthermore, a detachable air inlet pipe is installed on the air inlet, and the top end of the air inlet pipe extends out from the installation port accordingly; when the air outlet hole discharges air toward the cloth cushion layer, the air inlet pipe in the installation port blocks the cloth bag from separating from the pressure plate.
[0008] Furthermore, an internal thread structure is provided in the air inlet, and an external thread structure is provided on the outer wall of the air inlet pipe. The air inlet pipe is detachably installed in the air inlet through threaded engagement.
[0009] Furthermore, the top end of the air inlet pipe is in a flared shape that gradually widens from bottom to top.
[0010] Furthermore, the air inlet is opened on the upper plate surface of the pressure plate.
[0011] Furthermore, the material of the cloth cushion layer is felt.
[0012] Beneficial effects: The utility model provides a pressing plate structure for fixing a piano mark, and an air inlet and an air outlet are provided on the pressing plate. The air outlet can let air out of the cloth cushion layer on the lower plate surface of the pressing plate, and blow away the debris adsorbed on the cloth cushion layer. An air inlet pipe is installed on the air inlet, and when the air outlet blows air toward the cloth cushion layer, the air inlet pipe can prevent the cloth bag from leaving the pressing plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Attached Figure 1 It is a schematic diagram of the pressure plate pressing on Mark;
[0014] Attached Figure 2 This is a schematic diagram after the pressure plate and the cloth bag are separated. DETAILED DESCRIPTION
[0015] The utility model is further described below in conjunction with the accompanying drawings.
[0016] As attached Figures 1 to 2 The pressing plate structure for fixing the piano mark comprises a lifting pressing plate 1, as shown in the attached Figure 1 As shown in the figure, the pressing plate 1 is connected to the upper end of the cylinder 10. When the cylinder 10 is extended or retracted, the pressing plate 1 is driven to rise and fall, so that the pressing plate 1 can be pressed down on the Mark 8. The lower plate surface of the pressing plate 1 has a cloth cushion layer 2, and the material of the cloth cushion layer 2 is felt. Due to the existence of the cloth cushion layer 2, the pressing plate 1 will not be directly pressed on the Mark 8, avoiding damage to the Mark 8.
[0017] The Mark 8 placed on the workbench 9 will subsequently need to be shoveled, punched, nailed, and other operations, which will produce wood chips. The cloth cushion layer 2 has a certain adsorption effect on the wood chips. Some wood chip particles are large. When the cloth cushion layer 2 adsorbed with large wood chip particles is pressed on the Mark 8, it may cause the Mark 8 to be unable to be stably pressed, and may also cause dents on the surface of the Mark 8.
[0018] In order to solve the above problems, a plurality of air outlet holes 3 are provided on the pressing plate 1, and the air outlet ends of the air outlet holes 3 face the cloth cushion layer 2 on the lower plate surface of the pressing plate 1. An air inlet 4 is also provided on the pressing plate 1, and the air inlet 4 is connected to the plurality of air outlet holes 3. When gas is input into the air inlet 4, the air outlet holes 3 will discharge gas toward the cloth cushion layer 2, thereby blowing away the debris adsorbed on the cloth cushion layer 2. In actual applications, a pneumatic dust blower will be provided near the workbench 9 to blow away the wood chips on the workbench 9 or the Mark 8, so the pneumatic dust blower can be blown toward the air inlet 4 to blow away the debris adsorbed on the cloth cushion layer 2.
[0019] As attached Figure 2As shown in the figure, the pressing plate 1 is covered with a cloth bag 5, and the area opposite to the lower plate surface of the pressing plate 1 is the cloth cushion layer 2. The cloth bag 5 is provided with a mounting opening 6, which is opposite to the air inlet 4 to prevent the cloth bag 5 from covering the air inlet 4.
[0020] The air inlet 4 is provided with a detachable air inlet pipe 7, the top end of which extends out from the mounting opening 6. When air is blown toward the air inlet pipe 7 so that the air outlet 3 discharges air toward the fabric cushion layer 2, the air inlet pipe 7 in the mounting opening 6 can prevent the fabric bag 5 from being separated from the pressing plate 1, thereby preventing the fabric bag 5 from being blown away from the pressing plate 1.
[0021] An internal thread structure is provided in the air inlet 4, and an external thread structure is provided on the outer wall of the air inlet pipe 7. The air inlet pipe 7 can be detachably installed in the air inlet 4 through threaded cooperation. The air inlet pipe 7 can be conveniently screwed into the air inlet 4, and the air inlet pipe 7 can also be conveniently removed. When removing the air inlet pipe 7, the cloth bag 5 can be removed from the pressure plate 1.
[0022] The top end of the air inlet pipe 7 is in an expanded shape that gradually widens from bottom to top, and the air inlet 4 is provided on the upper plate surface of the pressing plate 1 , so that it is convenient to blow air toward the air inlet pipe 7 with a pneumatic dust blowing gun.
[0023] One application method of the pressing plate 1 of the utility model is as follows: before the pressing plate 1 is pressed down on the mark 8, a pneumatic dust blowing gun is directed toward the air inlet pipe 7 to blow air so that the air outlet 3 blows air toward the fabric cushion layer 2, that is, toward the area on the cloth bag 5 opposite to the lower plate surface of the pressing plate 1, so as to blow away the debris adsorbed on the fabric cushion layer 2, thereby preventing the debris adsorbed on the fabric cushion layer 2 from damaging the mark 8; and under the blocking effect of the air inlet pipe 7, the cloth bag 5 will not be blown away from the pressing plate 1.
[0024] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A pressure plate structure for fixing a piano mark, characterized in that: The invention comprises a lifting and lowering pressing plate (1), wherein the lower plate surface of the pressing plate (1) is provided with a cloth cushion layer (2), and a plurality of air outlet holes (3) are provided on the pressing plate (1), and the air outlet ends of the air outlet holes (3) face the cloth cushion layer (2) on the lower plate surface of the pressing plate (1); an air inlet (4) is also provided on the pressing plate (1), and the air inlet (4) is connected with the plurality of air outlet holes (3); when gas is inputted into the air inlet (4), the air outlet holes (3) discharge gas toward the cloth cushion layer (2), and debris adsorbed on the cloth cushion layer (2) is blown away.
2. The pressing plate structure for fixing a piano mark according to claim 1, characterized in that: The pressure plate (1) is covered with a cloth bag (5), and the area where the cloth bag (5) and the lower plate surface of the pressure plate (1) are opposite to each other is the cloth cushion layer (2); the cloth bag (5) is provided with a mounting opening (6), and the mounting opening (6) is opposite to the air inlet (4).
3. The pressing plate structure for fixing a piano mark according to claim 2, characterized in that: A detachable air inlet pipe (7) is installed on the air inlet (4), and the top end of the air inlet pipe (7) extends out from the mounting opening (6) accordingly; when the air outlet hole (3) discharges air toward the fabric cushion layer (2), the air inlet pipe (7) in the mounting opening (6) blocks the fabric bag (5) from separating from the pressing plate (1).
4. The pressing plate structure for fixing a piano mark according to claim 3 is characterized in that: An internal thread structure is provided in the air inlet (4), and an external thread structure is provided on the outer wall of the air inlet pipe (7). The air inlet pipe (7) is detachably mounted in the air inlet (4) through threaded engagement.
5. The pressing plate structure for fixing a piano mark according to claim 3, characterized in that: The top end of the air inlet pipe (7) is in an expanded shape that gradually widens from bottom to top.
6. The pressing plate structure for fixing a piano mark according to claim 5, characterized in that: The air inlet (4) is opened on the upper plate surface of the pressing plate (1).
7. The pressing plate structure for fixing a piano mark according to any one of claims 1 to 6, characterized in that: The material of the cloth cushion layer (2) is felt.