Violin string tension adjusting control device

Abstract

The invention belongs to the technical field of string adjustment, and particularly relates to a violin string tension adjustment control device which comprises an adjustment chamber, adsorption units are symmetrically arranged at one end of the adjustment chamber, positioning units are arranged on the sides, close to the adjustment chamber, of the adsorption units, an adjustment unit is arranged on one side in the adjustment chamber, and a feedback unit is arranged on one side of the adjustment unit. Through the lifting effect of the electric telescopic rod and the face-to-face or back-to-back movement between the idler wheels, lifting and sudden release of strings are achieved, then radial jumping of the strings is degraded and buffered through the multi-degree-of-freedom string roller, dominant impact between the lower electrode cap and the electrode ball is controlled through the prying roller short section, and therefore the electrode ball can be driven to move stably and stably. The high-frequency impact state between the strings and the long section of the prying roller is expressed, that is, impact feedback of the strings in a low-frequency state is explicitly and prominently expressed through an extended range, the change of tension is accurately sensed, excessive or insufficient adjustment is avoided, the overall tone balance is optimized, and the harmony degree and expressive force of the tone of the violin are improved.

Description

Technical Field

[0001] This invention belongs to the field of violin string adjustment technology, specifically relating to a violin string tension adjustment and control device. Background Technology

[0002] Adjusting the tension of violin strings: This is usually done by rotating the tuning pegs or fine tuners to change the string tension, improve the tone, and protect the violin body and strings.

[0003] Coarse tuning: changing the angle of the tuning pegs; that is, the player turns the tuning pegs clockwise or counterclockwise as needed to change the string tension, and at the same time judges the pitch by sound until the desired pitch is achieved;

[0004] The tuning peg structure is relatively rough, making it difficult to provide precise fine-tuning during rotation, especially in the pitch fine-tuning section, where it is impossible to accurately control the amount of pitch change through the tuning peg; the rotation angle of the tuning peg is not strictly linearly related to the change in string tension, and its surface friction is relatively large, which can easily cause over-adjustment, requiring a large amount of force to rotate, making it difficult to achieve small-amplitude precise adjustments;

[0005] Fine-tuning: Rotating the fine-tuning knob; that is, when a slight deviation in pitch is detected, the performer continuously and gently rotates the fine-tuning knob to make timely adjustments to the pitch.

[0006] Existing technology typically uses clip-on tuners to sense violin vibrations and determine pitch, assisting users in adjusting violin tension. However, when the state of the medium in the air changes, the speed of sound propagation changes, and the period of the sound signal generated by the clip-on tuner sensing the vibration of the violin strings changes accordingly. Furthermore, when there are defects in string tension that cause pitch deviations, the tuner may misjudge the pitch due to changes in the speed of sound propagation.

[0007] Clip-on tuners frequently provide incorrect pitch indications or fail to accurately lock the pitch due to abnormal string vibrations and unstable sound propagation caused by airflow. This affects the judgment and adjustment of the violin's pitch. In other words, the airflow directly acts on the strings, changing their vibration state and affecting the pitch and stability of the sound. At the same time, the airflow disrupts the sound propagation path in the air, making the sound signal received by the clip-on tuner unstable. Summary of the Invention

[0008] To solve the above problems, the present invention adopts the following technical solution: a violin string tension adjustment and control device, including an adjustment chamber, an adsorption unit symmetrically arranged at one end of the adjustment chamber, a positioning unit arranged on the side of the adsorption unit near the adjustment chamber, an adjustment unit arranged on one side inside the adjustment chamber, and a feedback unit arranged on one side of the adjustment unit.

[0009] The feedback unit includes:

[0010] There are four channel steel frames, evenly distributed inside the regulating chamber;

[0011] The electric telescopic pole is snap-fitted and installed on the outer wall of the horizontal section of the channel steel frame;

[0012] The bridging plate is snapped onto the end of the electric telescopic pole away from the channel steel frame.

[0013] The door compartment is detachably installed with bolts at the middle position of the end face of the bridge plate on the side away from the channel steel frame.

[0014] The gears are installed in the middle of a pair of vertical sections of the inner wall of the door compartment via a rotating shaft.

[0015] The rack is centrally symmetrically distributed on both sides of the gear. The rack is slidably engaged with the inner wall of the door compartment and meshes with the gear.

[0016] T-plates are snapped onto the rack at the end away from the gear axis, and the two T-plates at the same gear end are of equal shape but of unequal length.

[0017] The frame is snap-fitted onto the T-plate at the end furthest from the rack.

[0018] The rotating roller is rotatably mounted on the middle position of the end face of the mortise frame away from the T-plate.

[0019] Preferably, a torsion spring is sleeved on the outer wall of the rotating roller between the mortise frame and the T-plate, and a connecting plate is symmetrically snapped onto the outer wall of the rotating roller away from the mortise frame. A roller is snapped onto the connecting plate away from the axis of the rotating roller.

[0020] Preferably, telescopic air rods are symmetrically snapped onto both ends of the outer wall of the horizontal section of the channel steel frame. A U-shaped frame is snapped onto the end of the two telescopic air rods in the same group away from the channel steel frame. A dividing plate is symmetrically snapped onto the side of the horizontal section of the U-shaped frame near the axis of the telescopic air rods. Telescopic support columns are installed in an array-like sliding snap-fit ​​relationship between the dividing plate and the vertical section of the U-shaped frame. A string roller is snapped onto the end of the telescopic support columns in the same group near the axis of the telescopic air rods. A section plate is snapped onto the middle position of the end face of the horizontal section of the U-shaped frame away from the telescopic air rods. A pry roller is oscillatingly installed at the middle position of the section plate. An electrode cap is snapped onto the end of the pry roller away from the door compartment.

[0021] Preferably, a compensation plate is snapped onto the horizontal section of the U-shaped frame near the telescopic air rod, a spring rod is slidably snapped onto the vertical section of the compensation plate, an electrode ball is snapped onto one end of the spring rod, and an indicator light is snapped onto the outer wall of the adjustment chamber away from the door compartment.

[0022] Preferably, the adsorption unit includes:

[0023] The external pressure chambers are symmetrically snapped together at both ends of the bottom wall of the regulating chamber.

[0024] Angle plate is detachably installed on the inner wall of the vertical section on one side of the outer pressure chamber using bolts.

[0025] The guide rails are evenly and uniformly snapped together in an array on the vertical section of the corner plate, and the angle between the center line of the guide rail and the horizontal section of the corner plate is 30 degrees.

[0026] The boom is snapped together between the guide rail and the angle plate;

[0027] The decorative panel is slidably snapped between two adjacent guide rails, and a keyway is provided through the end of the decorative panel away from the corner plate;

[0028] The horizontal shaft is slidably snapped onto the end of the trim panel away from the guide rail, and the horizontal shaft is snapped onto the outer pressure chamber.

[0029] The chain shaft is rotatably fitted between the vertical sections of the outer pressure chamber, and the chain shaft is parallel to the horizontal axis.

[0030] Cams are evenly and uniformly snapped onto the outer wall of the chain shaft in an array, and each cam corresponds to a decorative panel.

[0031] The telescopic cue stick is snapped into place at the center of the end face of the trim panel on the side furthest from the cam.

[0032] Preferably, the outer pressure chamber has slots evenly arranged in an array on the end face away from the cam, which are slidably engaged with the telescopic ball rod. A platform is slidably engaged at the end of the telescopic ball rod away from the cam. Columns that slidably engage with the outer pressure chamber are engaged at the four corners of the end face of the platform near the cam. An air ring is engaged at the middle position of the end face of the platform away from the cam. An angle valve is symmetrically engaged on the outer wall of the air ring. A nozzle is engaged inside the air ring. A suction cup connected to the air ring is engaged at the end of the air ring away from the platform. An air cylinder is engaged at one end of the inner corner plate of the outer pressure chamber via a mounting seat. An air plug is slidably engaged at the axis of the air cylinder.

[0033] Preferably, the outer wall of the air cylinder away from the air plug is symmetrically fitted with an angle tube communicating with the air cylinder, the air plug away from the air cylinder is fitted with a telescopic electric rod fitted with the inner wall of the outer pressure chamber, and a water storage tank fitted with the inner wall of the outer pressure chamber is installed in the space away from the angle plate of the air cylinder through a mounting seat, and an interface valve is symmetrically inserted into the outer wall of the water storage tank.

[0034] Preferably, the positioning unit includes:

[0035] The shelves are symmetrically snapped onto the inner wall of the regulating chamber near the outer pressure chamber.

[0036] A vertical rod is rotatably fitted between two of the same stack plates;

[0037] A return spring is sleeved and installed on the outer wall of the vertical rod, and is located between the two layers;

[0038] The guide plate is snapped onto the outer wall of the end of the vertical rod away from the shelf.

[0039] The wall panel is located at the end of the guide plate away from the axis of the plumb line, and the wall panel is snapped into the regulating chamber.

[0040] The limiting post is snapped into the middle of the end face of the wall panel near the guide plate.

[0041] Pressure ring, fitted onto the outer wall of the online limit column;

[0042] There are four warning lights, arranged in pairs and symmetrically installed on the outer wall of the regulating room.

[0043] Preferably, the adjustment unit includes:

[0044] The grid compartment is snap-fitted into the middle of the inner end of the regulating chamber away from the guide plate; in addition, the channel steel frame is snap-fitted into the grid compartment for installation.

[0045] Four corner brackets are installed in an array and slidably snapped onto the end face of the gate compartment away from the guide plate.

[0046] The micro motor is mounted on the horizontal section of the corner bracket via a mounting base, and the output shaft of the micro motor passes through the horizontal section of the corner bracket.

[0047] The end seat is snapped onto the end face of the vertical section of the corner bracket near the micro motor.

[0048] The shaft seat is snap-fitted onto the end of the end seat away from the corner bracket, and the shaft seat is snap-fitted onto the output end of the micro motor and slidably fitted onto the gate compartment.

[0049] The electric lifting column is snap-fitted onto the end of the shaft seat away from the corner bracket.

[0050] The silo is snap-fitted onto the end of the electric lifting column furthest from the shaft seat.

[0051] The central support column is inserted and installed in the middle of the inner wall of the silo near the shaft seat.

[0052] Preferably, the inner wall of the silo near the shaft seat has two sets of support plates symmetrically snapped together on the outer side. Telescopic pads are slidably snapped together between the support plates, and the telescopic pads have evenly distributed teeth on the end face near the central column. A front opening plate is snapped together on the end of the telescopic pad away from the shaft seat, and the front opening plate has rounded chamfers. A violin connected to the adsorption unit is provided outside the adjustment chamber, and fine adjustment columns are evenly distributed on the end of the violin near the adjustment chamber.

[0053] The high-precision method for adjusting violin string tension uses the aforementioned violin string tension adjustment control device. The specific steps are as follows:

[0054] S1: First, through the relative movement between the fine-tuning column and the guide plate, until the guide plate contacts the pressure ring, at which point the guide plate engages with the fine-tuning column, and the silo corresponds one-to-one with the fine-tuning column. Then, under the control of the electric lifting column, the silo moves continuously towards the fine-tuning column until the central column abuts against the fine-tuning column, while the telescopic pad clamps and limits the fine-tuning column.

[0055] S2: Then, under the control of the electric telescopic rod, the bridge plate synchronously drives the door to move towards the string area until the string passes between the opposite rollers. At the same time, the opposing movement between the T-plates controls the rollers to lift and clamp the string. After that, the electric telescopic rod retracts again to realize the "plucking" of the string.

[0056] The telescopic support provides flexible support to the string roller, reducing and buffering the radial jump during the lifting and releasing of the string. When the high-frequency impact occurs between the pry roller and the string, the lever principle causes the prominent jump of the short section of the pry roller to express the high-frequency impact state between the long section and the string. Finally, the impact degree is fed back by the indicator light to judge the pitch.

[0057] S3: Finally, the end seat control shaft seat synchronously drives the electric lifting column under the action of the grid bin guide shaft, causing the silo to push the fine adjustment column to move a specified distance. After that, the micro motor control shaft seat synchronously drives the silo to rotate a specified angle, thereby re-fixing and calibrating the position of the fine adjustment column.

[0058] The present invention has the following beneficial effects:

[0059] 1. This invention simplifies the calibration cycle for forward alignment between the silo and the fine-tuning column by stopping the relative movement between the fine-tuning column and the guide plate, ensuring that users can quickly and easily adjust the position of the fine-tuning column, which helps improve the string adjustment accuracy. At the same time, the lifting and lowering action of the electric telescopic rod and the opposing or receding movement between the rollers realize the lifting and sudden release of the string. Then, the radial runout of the string is degraded and buffered by the multi-degree-of-freedom string roller. The explicit impact between the lower electrode cap and the electrode ball is controlled by the short section of the pry roller, which expresses the high-frequency impact state between the string and the long section of the pry roller. That is, the impact feedback of the string in the low-frequency state is expressed by the "range-extended" explicit expression, accurately sensing the change of tension, avoiding over- or under-adjustment, which helps to optimize the overall tone balance and improve the harmony and expressiveness of the violin tone.

[0060] 2. This invention provides a comparative expression of the positive relativity between the silo and the fine-tuning column through the contact between the pressure ring and the guide plate. That is, when the fine-tuning column and the guide plate are in relative motion, the fine-tuning column squeezes the guide plate, causing the guide plate to drive the plumb rod to rotate until the warning light illuminates. This simplifies the alignment process, ensures the axial overlap between the silo and the fine-tuning column, improves the clamping accuracy of the telescopic pad on the fine-tuning column, positively affects the synchronous rotation of the fine-tuning column when the silo rotates, indirectly improves the movement accuracy of the fine-tuning column, and enhances the string adjustment accuracy.

[0061] 3. Under the reverse force of the table plate, the telescopic ball rod of this invention synchronously drives the decorative panel to move along the center line of the corner plate under the combined guidance of the guide rail and the horizontal axis. For curved surfaces with different levels of horizontality, the degree of expression between the telescopic ball rod and the decorative panel varies. Subsequently, the cam is driven by the chain shaft to squeeze the decorative panel, thereby achieving the same degree of adsorption of the suction cup between irregular surfaces, improving the stability of the equipment, and helping to improve the adjustment accuracy of the string tension. At the same time, by spraying water mist before the suction cup adsorbs, the tiny gap between the suction cup and the violin surface is filled, reducing the surface energy of the violin surface, reducing air leakage, maintaining a vacuum state, enhancing the adsorption effect, protecting the violin surface, and improving its service life. Attached Figure Description

[0062] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0063] Figure 2 This is an appendix to the present invention. Figure 1 Top view of the structure.

[0064] Figure 3 This is a three-dimensional representation of the adsorption unit of the present invention.

[0065] Figure 4 This is a diagram illustrating the internal structure of the adsorption unit of the present invention.

[0066] Figure 5 This is a three-dimensional view of the telescopic cue and its partial structure in this invention.

[0067] Figure 6 This is a plan view of the internal structure of the external pressure chamber of the present invention.

[0068] Figure 7 This is a three-dimensional representation of the positioning unit in this invention.

[0069] Figure 8 This is a three-dimensional structural diagram of the adjustment unit and feedback unit in this invention.

[0070] Figure 9 This is an appendix to the present invention. Figure 8 Further diagram of the structure is shown below.

[0071] Figure 10This is a three-dimensional view of another part of the structure of the adjustment unit of the present invention.

[0072] Figure 11 This is a three-dimensional structural diagram of the feedback unit in this invention.

[0073] Figure 12 This is an appendix to the present invention. Figure 12 Internal cross-sectional plan view.

[0074] Figure 13 This is a three-dimensional view of another part of the feedback unit structure of the present invention.

[0075] Figure 14 This is a three-dimensional view of a partial structure of the feedback unit of the present invention.

[0076] Figure 15 This is a diagram showing the main device of the present invention in conjunction with a violin.

[0077] The diagram is labeled as follows: 1. Adjustment chamber; 2. Adsorption unit; 3. Positioning unit; 4. Adjustment unit; 5. Feedback unit.

[0078] 11. Violin; 12. Fine adjustment bar;

[0079] 21. External pressure chamber; 22. Angle plate; 23. Guide rail; 24. Hanging rod; 25. Decorative panel; 26. Horizontal shaft; 27. Chain shaft; 28. Cam; 29. ​​Telescopic ball bar;

[0080] 211. Groove; 212. Tabletop; 213. Column; 214. Air ring; 215. Angle valve; 216. Nozzle; 217. Suction cup; 218. Air pump; 219. Air plug;

[0081] 221. Angle pipe; 222. Telescopic electric pole; 223. Water storage tank; 224. Interface valve;

[0082] 31. Shelf; 32. Vertical bar; 33. Return spring; 34. Guide plate; 35. Wall panel; 36. Limiting post; 37. Pressure ring; 38. Warning light;

[0083] 41. Slatted hopper; 42. Angle bracket; 43. Miniature motor; 44. End seat; 45. Shaft seat; 46. Electric lifting column; 47. Silo; 48. Central support column;

[0084] 411. Support plate; 412. Telescopic pad; 413. Front opening plate;

[0085] 51. Channel steel frame; 52. Electric telescopic pole; 53. Bridging plate; 54. Door compartment; 55. Gear; 56. Rack; 57. T-ply plate; 58. Chamfer frame; 59. Rotary roller;

[0086] 511. Torsion spring; 512. Connecting plate; 513. Roller;

[0087] 521. Telescopic air spring; 522. U-shaped frame; 523. Dividing plate; 524. Telescopic support column; 525. String roller; 526. Section plate; 527. Pry roller; 528. Electrode cap;

[0088] 531. Compensation plate; 532. Spring rod; 533. Electrode ball; 534. Indicator light. Detailed Implementation

[0089] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0090] It should be noted that the terms "vertical," "horizontal," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0091] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0092] Reference Figure 1 , Figure 2 and Figure 7 It is known that a violin string tension adjustment and control device includes an adjustment chamber 1, an adsorption unit 2 is symmetrically arranged at one end of the adjustment chamber 1, a positioning unit 3 is arranged on the side of the adsorption unit 2 near the adjustment chamber 1, an adjustment unit 4 is arranged on one side inside the adjustment chamber 1, and a feedback unit 5 is arranged on one side of the adjustment unit 4.

[0093] Reference Figure 1 , Figure 3 and Figure 4 It can be seen that the adsorption unit 2 includes: an outer pressure chamber 21, which is symmetrically snapped onto both ends of the bottom wall of the regulating chamber 1; a corner plate 22, which is detachably installed on the inner wall of the vertical section on one side of the outer pressure chamber 21 by bolts; a guide rail 23, which is uniformly snapped onto the vertical section of the corner plate 22 in an array, and the angle between the center line of the guide rail 23 and the horizontal section of the corner plate 22 is 30 degrees; and a hanging rod 24, which is snapped onto the guide rail 23 and the corner plate 22.

[0094] The decorative panel 25 is slidably snapped onto two adjacent guide rails 23, and a keyway is provided through the end of the decorative panel 25 away from the corner plate 22; the horizontal shaft 26 is slidably snapped onto the end of the decorative panel 25 away from the guide rail 23, and the horizontal shaft 26 is snapped onto the outer pressure chamber 21; the chain shaft 27 is rotatably installed between the vertical sections of the outer pressure chamber 21, and the chain shaft 27 is parallel to the axis of the horizontal shaft 26; the cams 28 are evenly snapped onto the outer wall of the chain shaft 27 in an array, and the cams 28 correspond one-to-one with the decorative panel 25; the telescopic ball rod 29 is snapped onto the middle position of the end face of the decorative panel 25 away from the cam 28;

[0095] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6 It can be seen that the outer pressure chamber 21 has slots 211 evenly arranged in an array on the end face away from the cam 28, which are slidably engaged with the telescopic ball rod 29. The telescopic ball rod 29 is slidably engaged with a platform 212 at the end away from the cam 28. The four corners of the end face of the platform 212 near the cam 28 are all engaged with columns 213 that are slidably engaged with the outer pressure chamber 21. An air ring 214 is engaged with the middle position of the end face of the platform 212 away from the cam 28. An angle valve 215 is symmetrically engaged with the outer wall of the air ring 214. A nozzle 216 is engaged with the inside of the air ring 214. A suction cup 217 connected to the air ring 214 is engaged with the end of the air ring 214 away from the platform 212. An air cylinder 218 is engaged with one end of the inner corner plate 22 of the outer pressure chamber 21 through a mounting seat. An air plug 219 is slidably engaged with the axis of the air cylinder 218.

[0096] Reference Figure 4 and Figure 6 It can be seen that the outer wall of the air cylinder 218 away from the air plug 219 is symmetrically snapped with a corner tube 221 that communicates with the air cylinder 218. The air plug 219 away from the air cylinder 218 is snapped with a telescopic electric rod 222 that is snapped with the inner wall of the outer pressure chamber 21. The space on the side of the air cylinder 218 away from the corner plate 22 is fitted with a water storage tank 223 that is snapped with the inner wall of the outer pressure chamber 21 through a mounting seat. The outer wall of the water storage tank 223 is symmetrically inserted with an interface valve 224.

[0097] A violin 11 is movably connected to the adsorption unit 2 outside the regulating chamber 1, and fine-tuning columns 12 are evenly arranged at one end of the violin 11 near the regulating chamber 1.

[0098] Pre-wetting and protective process for the surface of violin 11 before suction cup 217 adsorption:

[0099] By extending the telescopic electric rod 222, the air plug 219 is controlled to squeeze the air cylinder 218. At this time, the gas inside the air cylinder 218 flows through the angle tube 221 to the water storage tank 223 and the air ring 214 (in specific implementation, the angle tube 221 and the interface valve 224, as well as the interface valve 224 and the angle valve 215 can be connected by an external hose, and a one-way valve is provided at the connection end between the angle tube 221 and the air cylinder 218). After the fluid inside the water storage tank 223 is pressurized, it flows to the nozzle 216 area. In specific implementation, the nozzle 216 is an atomizing nozzle 216. At the same time, some gas flows through the air ring 214 to the suction cup 217. Finally, the gas in the area limited by the suction cup 217 blows onto the surface of the violin 11 and sprays water mist onto the curved surface of the violin 11.

[0100] Purpose of spraying water mist:

[0101] Fill the tiny gap between the suction cup 217 and the surface of the violin 11, reduce the surface energy of the violin 11, reduce air leakage, maintain a vacuum state, and enhance the adsorption effect.

[0102] The same degree of adsorption process between suction cup 217 and the curved surface of violin 11 (after water mist spraying):

[0103] First, pressing the outer pressure chamber 21 causes the suction cup 217, under the reverse force of the violin 11, to cause the air ring 214 to lift the table plate 212. Then, the telescopic cue 29, under the combined guidance of the table plate 212 and the outer pressure chamber 21 (the guide under the degree of freedom restricted by the groove 211), applies a force to the decorative panel 25 (providing stable support guidance to the column 213 through the outer pressure chamber 21).

[0104] Next, the trim panel 25 (different areas of trim panel 25 correspond to different curved surfaces) moves a specified distance under the combined force of the telescopic rod 29 and the guidance of the horizontal axis 26 and the guide rail 23 (the moving distance of trim panels 25 with different curved surfaces is not equal). After that, the cam 28 is driven to rotate through the chain shaft 27 until the cam 28 abuts against the end face of the trim panel 25 (the cam 28 abuts against and limits the trim panel 25, thereby ensuring the consistency of the interaction force between the telescopic rod 29 and different curved surfaces in different areas). In specific implementation, the chain shaft 27 can be driven to rotate by an external micro motor.

[0105] Finally, the retraction of the telescopic electric rod 222 drives the air plug 219 to extract the gas inside the air cylinder 218. At this time, the gas in the contact area between the suction cup 217 and the violin 11 flows continuously into the air cylinder 218 through the angle valve 215 and the angle tube 221 until the aforementioned contact area is in a vacuum state.

[0106] Conversely, the retraction of the electric telescopic rod 222 fills the space between the violin 11 and the suction cup 217 with gas, thus releasing the adhesion between them.

[0107] Hanger 24: The hanger 24 improves the stability and structural rigidity of the guide rail 23, further ensuring the movement accuracy of the trim panel 25 under the guidance of the guide rail 23, and improving the service life of the trim panel 25 and the guide rail 23.

[0108] Reference Figure 1 , Figure 2 and Figure 7 As can be seen, the positioning unit 3 includes: a shelf 31, which is symmetrically snapped onto the inner wall of the regulating chamber 1 near the outer pressure chamber 21; a vertical rod 32, which is rotatably installed between two shelf 31s in the same group; a return spring 33, which is sleeved on the outer wall of the vertical rod 32 and located between the two shelf 31s; a guide plate 34, which is snapped onto the outer wall of the vertical rod 32 away from the shelf 31; a wall plate 35, which is located at the end of the guide plate 34 away from the axis of the vertical rod 32 and is snapped onto the regulating chamber 1; a limiting post 36, which is snapped onto the middle position of the end face of the wall plate 35 near the guide plate 34; a pressure ring 37, which is sleeved onto the outer wall of the online limiting post 36; and four warning lights 38, which are installed in pairs on the outer wall of the regulating chamber 1 in a symmetrical manner.

[0109] Reference Figure 2 , Figure 8 , Figure 9 and Figure 10 It can be seen that the adjustment unit 4 includes: a grid compartment 41, which is snapped into the middle of the inner part of the adjustment chamber 1 away from the guide plate 34; in addition, the channel steel frame 51 is snapped into the grid compartment 41; four corner brackets 42 are arranged in an array and are snapped into the end face of the grid compartment 41 away from the guide plate 34; a micro motor 43 is snapped into the horizontal section of the corner bracket 42 by a mounting base, and the output shaft of the micro motor 43 passes through the horizontal section of the corner bracket 42; and an end seat 44 is snapped into the end face of the vertical section of the corner bracket 42 near the micro motor 43.

[0110] Shaft seat 45 is snap-fitted onto the end of end seat 44 away from angle bracket 42, and shaft seat 45 is snap-fitted onto the output end of micro motor 43 and slidably fitted onto grid compartment 41; electric lifting column 46 is snap-fitted onto the end of shaft seat 45 away from angle bracket 42; silo 47 is snap-fitted onto the end of electric lifting column 46 away from shaft seat 45; central guard column 48 is inserted into the middle of the inner wall of silo 47 near shaft seat 45.

[0111] Reference Figure 9 and Figure 10 It can be seen that the inner wall of the silo 47 near the shaft seat 45 is symmetrically fitted with a pair of support plates 411. The support plates 411 are slidably fitted with telescopic pads 412. The telescopic pads 412 have teeth evenly distributed on the end face near the central column 48. The telescopic pads 412 away from the shaft seat 45 are fitted with a front opening plate 413, and the front opening plate 413 is rounded.

[0112] The process of relative distribution between silo 47 and fine-tuning column 12 (before suction cup 217 adsorption):

[0113] In the initial state, the two guide plates 34, which are directly opposite each other, are arranged in a figure-eight shape;

[0114] First, the user moves the entire adjustment chamber 1 so that the fine adjustment column 12 passes horizontally through the guide plate 34 (with the direction of gravity as the reference). At this time, relative movement occurs between the guide plate 34 and the fine adjustment column 12, and the fine adjustment column 12 continuously squeezes the guide plate 34 during the movement.

[0115] Next, under the reverse action of the guide plate 34, the vertical rod 32 forces the return spring 33 to rotate a certain angle under the limiting action of the layer plate 31 (in specific implementation, it is a spiral spring with torsion) until the guide plate 34 comes into contact with the pressure ring 37 (at this time, the two guide plates 34 that are opposite each other are parallel to each other).

[0116] Finally, when the four fine-tuning columns 12 are "stuck" in the opposite guide plates 34, the guide plates 34 are in contact with the pressure ring 37 (the pressure ring 37 is supported by the limit column 36 and compensated by the wall plate 35, ensuring the contact accuracy between the guide plate 34 and the pressure ring 37), the warning light 38 lights up (in specific implementation, the symmetrically distributed warning lights 38 can be used for further "self-proof", thereby improving the contact accuracy between the guide plate 34 and the pressure ring 37, reducing contact error, and improving the overlap between the silo 47 and the axis of the fine-tuning column 12).

[0117] In practice, when an external force is applied to the pressure sensor, its internal resistance changes. The external force causes a slight deformation in the lattice structure of the sensor material, changing the resistivity of the material. The change in resistance is proportional to the applied pressure. Subsequently, the contact is determined by measuring the fluctuation of the resistance value (the resistance change signal output by the pressure sensor is relatively weak, so it needs to be converted into a voltage or current signal by a signal conversion circuit and amplified by an amplifier. After the signal is amplified, it is transmitted to the microcontroller or comparator circuit, and finally outputs a control signal to control the warning light circuit 38).

[0118] The adjustment process for the position of fine-tuning column 12:

[0119] First, when the silo 47 is directly opposite the fine-tuning column 12, the silo 47 is driven to move towards the fine-tuning column 12 under the control of the electric lifting column 46 (in specific implementation, the principle of the electric lifting column 46 is the same as that of the electric telescopic rod 52) until the center column is inserted into the axis of the fine-tuning column 12 and abuts against the inner bottom wall of the fine-tuning column 12.

[0120] During this process, the front plate 413 with rounded chamfers first comes into contact with the outer wall of the fine-tuning column 12. At this time, the fine-tuning column 12 applies a reverse force to the front plate 413, causing the telescopic pad 412 to stably retract away from the axis of the central column 48 under the support of the support plate 411, until the end of the telescopic pad 412 away from the central column 48 contacts the inner wall of the silo 47. The fine-tuning column 12 is clamped and limited by the two telescopic pads 412 that are opposite to each other (in specific implementation, the contact friction between the telescopic pad 412 and the fine-tuning column 12 is increased by the teeth on the inner wall of the telescopic pad 412 to further ensure the clamping effect of the telescopic pad 412).

[0121] Next, as the micro motor 43 rotates (assuming clockwise rotation is to "untie" the fine-tuning column 12), the bearing seat 45 synchronously drives the electric lifting column 46 to rotate stably under the support of the grid compartment 41. At this time, the silo 47 synchronously drives the internal telescopic pad 412 to rotate. During this process, the fit between the fine-tuning column 12 and the violin 11 gradually decreases (and in specific implementation, when the fine-tuning column 12 rotates, it may press against the central guard column 48 in the opposite direction, resulting in a collision limit, which can be compensated by the retraction movement of the electric lifting column 46 (which can be achieved through a pressure sensor)).

[0122] Finally, the axle seat 45 and the corner bracket 42 are pulled by the end seat 44. In practice, the axle seat 45 can be moved by an electric slider. At this time, due to the positional synchronization between the axle seat 45, the electric lifting column 46, the silo 47 and the fine-tuning column 12, the fine-tuning column 12 moves synchronously with the axle seat 45 to a specified distance, reducing the error accuracy under the traditional manual adjustment method, improving the adjustment accuracy of the string tension, and breaking the user's operation "threshold" limitation, simplifying the adjustment method.

[0123] Reference Figure 11 , Figure 12 and Figure 13 It is known that the feedback unit 5 includes: four channel steel frames 51, evenly distributed inside the regulating chamber 1; an electric telescopic rod 52, snapped onto the outer wall of the horizontal section of the channel steel frame 51; a bridging plate 53, snapped onto the end of the electric telescopic rod 52 away from the channel steel frame 51; a door compartment 54, detachably installed with bolts at the middle position of the end face of the bridging plate 53 away from the channel steel frame 51; a gear 55, rotatably installed at the middle position of the inner wall of a pair of vertical sections of the door compartment 54 via a rotating shaft; and a rack 56, centrally symmetrically distributed on both sides of the gear 55, the rack 56 being slidably snapped onto the inner wall of the door compartment 54 and meshing with the gear 55.

[0124] T-plate 57 is snapped onto the end of rack 56 away from the axis of gear 55, and the two T-plates 57 at the same end of gear 55 are of equal shape but of different lengths; grommets 58 are snapped onto the end of T-plate 57 away from rack 56; roller 59 is rotatably fitted onto the middle position of the end face of grommets 58 away from T-plate 57.

[0125] Reference Figure 12 and Figure 13 It can be seen that a torsion spring 511 is installed on the outer wall of the rotating roller 59 between the mouth frame 58 and the T-plate 57. A connecting plate 512 is symmetrically installed on the outer wall of the rotating roller 59 away from the mouth frame 58. A roller 513 is installed on the end of the connecting plate 512 away from the axis of the rotating roller 59.

[0126] Reference Figure 11 and Figure 14 It can be seen that telescopic air rods 521 are symmetrically snapped onto both ends of the horizontal section of the channel steel frame 51. A U-shaped frame 522 is snapped onto the end of the two telescopic air rods 521 in the same group away from the channel steel frame 51. A dividing plate 523 is symmetrically snapped onto the side of the horizontal section of the U-shaped frame 522 near the axis of the telescopic air rods 521. A telescopic support column 524 is installed in an array-like sliding snap-fit ​​between the dividing plate 523 and the vertical section of the U-shaped frame 522. A string roller 525 is snapped onto the end of the telescopic support column 524 in the same group near the axis of the telescopic air rods 521. A section plate 526 is snapped onto the middle position of the end face of the horizontal section of the U-shaped frame 522 away from the telescopic air rods 521. A pry roller 527 is oscillatingly installed at the middle position of the section plate 526. An electrode cap 528 is snapped onto the end of the pry roller 527 away from the door compartment 54.

[0127] Reference Figure 1 , Figure 11 and Figure 14 It can be seen that a compensation plate 531 is snapped and installed at the end of the horizontal section of the U-shaped frame near the telescopic air rod 521, a spring rod 532 is slidably snapped and installed at the vertical section of the compensation plate 531, an electrode ball 533 is snapped and installed at one end of the spring rod 532, and an indicator light 534 is snapped and installed on the outer wall of the end of the regulating chamber 1 away from the door compartment 54.

[0128] The process of testing the tension of violin string 11 (before adjusting the position of fine adjustment pin 12):

[0129] First, the bridge plate 53 is controlled by the electric telescopic rod 52, which drives the door compartment 54 (the vertical section of the door compartment 54 has a "string groove" for placing the strings) to move in the direction of the strings (to avoid collision between the aforementioned fine adjustment column 12 and the fine adjustment column 12 when passing through the guide plate 34).

[0130] Next, through the forward meshing motion between gear 55 and rack 56 (driven by an external micro motor to rotate gear 55), the relatively distributed T-plates 57 are controlled to drive the mouth frame 58 to move towards each other (in the initial state, the vertical distance between the relatively distributed rollers 513 is greater than the diameter of the string), until the relatively distributed rollers 513 come into contact.

[0131] Finally, the electric telescopic rod 52 retracts until the string breaks through the space between the relatively distributed rollers 513 (the torsion spring 511 ensures the restoring nature of the roller 59; in practice, the rigid connection between the connecting plate 512 and the roller 59 makes the angle between the roller 513 and the roller 59 adjustable). After that, the string continues to vibrate at a high frequency under the aforementioned "plucking" force and its own elasticity.

[0132] During this process, the telescopic air rod 521 controls the U-shaped frame 522 to move a specified distance towards the string. As the string bounces, it continuously contacts the long section of the pry roller 527 (i.e., the connection point of the pry roller 527 and the section plate 526 relies on the lever principle). Subsequently, through the "range-extended" expression of the impact state of the short section of the pry roller 527 on the long section, the contact accuracy and frequency between the electrode cap 528 and the electrode ball 533 are highlighted, fully reflecting the bounce state of the string's "trough" area, improving the monitoring of the actual tension of the string, and ensuring the accuracy of subsequent adjustments. At the same time, through the elastic recovery of the telescopic column (providing stable support for the telescopic column through the dividing plate 523 and the vertical section of the U-shaped frame 522), an environment is provided to the string roller 525 to degrade and absorb the radial bounce of the string, improving the impact accuracy of the string's unidirectional bounce.

[0133] In practice, the indicator light 534 is a multi-segment light strip. The number of indicator lights 534 that are lit up provides real-time feedback on the contact status between the electrode cap 528 and the electrode ball 533, thereby assisting the user in accurately judging the pitch.

[0134] The string adjustment method of the violin string tension adjustment control device provided by the present invention is as follows: Step 1: First, the relative movement between the fine adjustment column 12 and the guide plate 34 is used until the guide plate 34 contacts the pressure ring 37. At this time, the guide plate 34 is engaged with the fine adjustment column 12, and the silo 47 corresponds one-to-one with the fine adjustment column 12. Then, under the control of the electric lifting column 46, the silo 47 moves continuously towards the fine adjustment column 12 until the central guard column 48 abuts against the fine adjustment column 12. At the same time, the telescopic pad 412 clamps and limits the fine adjustment column 12.

[0135] The second step: Then, under the control of the electric telescopic rod 52, the bridge plate 53 synchronously drives the door chamber 54 to move towards the string area until the string passes between the opposite rollers 513. At the same time, the opposing movement between the T-plates 57 controls the rollers 513 to lift and clamp the string. After that, the electric telescopic rod 52 retracts again to realize the "plucking" of the string.

[0136] The telescopic support 524 provides flexible support to the string roller 525 through its telescopic nature, which reduces and buffers the radial jump during the lifting and releasing of the string. When the pry roller 527 impacts the string at a high frequency, the lever principle causes the short section of the pry roller 527 to bounce prominently, which expresses the high frequency impact state between the long section and the string. Finally, the indicator light 534 provides feedback on the degree of impact, thereby judging the pitch.

[0137] Step 3: Finally, the end seat 44 controls the shaft seat 45, which synchronously drives the electric lifting column 46 under the action of the guide shaft of the grid compartment 41, causing the silo 47 to push the fine adjustment column 12 to move a specified distance. After that, the micro motor 43 controls the shaft seat 45, which synchronously drives the silo 47 to rotate a specified angle, thereby re-fixing and calibrating the position of the fine adjustment column 12.

[0138] The circuits and controls involved in this invention are all existing technologies and will not be described in detail here.

[0139] The above are merely embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A violin (11) string tension adjustment and control device, comprising an adjustment chamber (1), characterized in that: The regulating chamber (1) is symmetrically provided with an adsorption unit (2) at one end. The adsorption unit (2) is provided with a positioning unit (3) on the side of the regulating chamber (1) near the regulating chamber (1). The regulating unit (4) is provided on one side of the regulating chamber (1). The feedback unit (5) is provided on one side of the regulating unit (4). The feedback unit (5) includes: Four channel steel frames (51) are evenly distributed inside the regulating chamber (1); The electric telescopic rod (52) is snapped onto the outer wall of the horizontal section of the channel steel frame (51); The bridging plate (53) is snapped onto the end of the electric telescopic pole (52) away from the channel steel frame (51); The door compartment (54) is detachably installed by bolts at the middle position of the end face of the bridge plate (53) away from the channel steel frame (51); The gear (55) is installed in the middle of a pair of vertical sections of the inner wall of the door compartment (54) through a rotating shaft; The rack (56) is centrally symmetrically distributed on both sides of the gear (55). The rack (56) is slidably engaged with the inner wall of the door compartment (54) and meshes with the gear (55). T-plates (57) are snapped onto the rack (56) at the end away from the axis of the gear (55), and the two T-plates (57) at the same end of the gear (55) are of equal shape but of different lengths; The mouthpiece (58) is snapped onto the end of the T-plate (57) away from the rack (56); The rotating roller (59) is rotatably mounted on the middle position of the end face of the mortise frame (58) away from the T-plate (57).

2. The violin (11) string tension adjustment and control device according to claim 1, characterized in that: The outer wall of the rotating roller (59) is fitted with a torsion spring (511) located between the mouth frame (58) and the T-plate (57). The outer wall of the rotating roller (59) away from the mouth frame (58) is symmetrically fitted with a connecting plate (512). The end of the connecting plate (512) away from the axis of the rotating roller (59) is fitted with a roller (513).

3. The violin (11) string tension adjustment and control device according to claim 2, characterized in that: The horizontal section of the channel steel frame (51) is symmetrically fitted with telescopic air rods (521) at both ends. Two telescopic air rods (521) in the same group are fitted with U-shaped frames (522) at the ends furthest from the channel steel frame (51). A dividing plate (523) is symmetrically fitted on the horizontal section of the U-shaped frame (522) near the axis of the telescopic air rods (521). The dividing plate (523) and the vertical section of the U-shaped frame (522) are fitted together in an array-like sliding engagement. Telescopic support column (524), the telescopic support column (524) in the same group is connected to a string roller (525) at one end near the axis of the telescopic air rod (521). A section plate (526) is connected to the middle position of the end face of the horizontal section of the U-shaped frame (522) away from the telescopic air rod (521). A pry roller (527) is swung and installed at the middle position of the section plate (526). An electrode cap (528) is connected to the end of the pry roller (527) away from the door compartment (54).

4. The violin (11) string tension adjustment and control device according to claim 3, characterized in that: The horizontal section of the U-shaped frame is fitted with a compensation plate (531) near the telescopic air rod (521). The vertical section of the compensation plate (531) is fitted with a spring rod (532). An electrode ball (533) is fitted with one end of the spring rod (532). An indicator light (534) is fitted with the outer wall of the adjustment chamber (1) away from the door compartment (54).

5. The violin (11) string tension adjustment and control device according to claim 4, characterized in that: The adsorption unit (2) includes: The external pressure chamber (21) is symmetrically snapped into place at both ends of the bottom wall of the regulating chamber (1); Angle plate (22) is detachably installed on the inner wall of the vertical section on one side of the outer pressure chamber (21) by bolts; The guide rails (23) are evenly and uniformly snapped into the vertical section of the corner plate (22) in an array, and the angle between the center line of the guide rails (23) and the horizontal section of the corner plate (22) is thirty degrees. The boom (24) is snapped between the guide rail (23) and the corner plate (22); The decorative panel (25) is slidably snapped between two adjacent guide rails (23), and a keyway is provided through the end of the decorative panel (25) away from the corner plate (22); The horizontal shaft (26) is slidably snapped onto the end of the trim panel (25) away from the guide rail (23), and the horizontal shaft (26) is snapped onto the outer pressure chamber (21). The chain shaft (27) is rotatably installed between the vertical sections of the outer pressure chamber (21), and the chain shaft (27) is parallel to the axis of the horizontal shaft (26); Cams (28) are evenly and uniformly snapped onto the outer wall of the chain shaft (27), and each cam (28) corresponds to a decorative panel (25). The telescopic ball bar (29) is snapped into place on the middle of the end face of the trim panel (25) away from the cam (28).

6. The violin (11) string tension adjustment and control device according to claim 5, characterized in that: The outer pressure chamber (21) has slots (211) evenly arranged in an array on the end face away from the cam (28) for sliding engagement with the telescopic ball rod (29). A platform (212) is slidably engaged at the end of the telescopic ball rod (29) away from the cam (28). A column (213) is engaged with the outer pressure chamber (21) at each of the four corners of the end face of the platform (212) near the cam (28). A column (213) is engaged with the outer pressure chamber (21) at the middle position of the end face of the platform (212) away from the cam (28). An air ring (214) is installed. An angle valve (215) is symmetrically snapped onto the outer wall of the air ring (214). A nozzle (216) is snapped onto the inside of the air ring (214). A suction cup (217) connected to the air ring (214) is snapped onto the end of the air ring (214) away from the platform (212). An air cylinder (218) is snapped onto one end of the inner principle angle plate (22) of the outer pressure chamber (21) through the mounting seat. An air plug (219) is snapped onto the axis of the air cylinder (218) in a sliding snap-fit ​​manner.

7. The violin (11) string tension adjustment and control device according to claim 5, characterized in that: The air cylinder (218) is symmetrically fitted with a corner tube (221) connected to the air cylinder (218) on the outer wall away from the air plug (219). The air plug (219) is fitted with a telescopic electric rod (222) connected to the inner wall of the outer pressure chamber (21) on the outer wall away from the air cylinder (218). A water storage tank (223) is fitted to the inner wall of the outer pressure chamber (21) through a mounting seat on the side of the air cylinder (218) away from the corner plate (22). An interface valve (224) is symmetrically inserted into the outer wall of the water storage tank (223).

8. The violin (11) string tension adjustment and control device according to claim 3, characterized in that: The positioning unit (3) includes: The shelf (31) is symmetrically snapped onto the inner wall of the regulating chamber (1) near the outer pressure chamber (21); A vertical rod (32) is rotatably fitted between two of the aforementioned shelves (31) in the same group; A return spring (33) is sleeved and installed on the outer wall of the vertical rod (32) and located between the two layers (31); The guide plate (34) is snapped onto the outer wall of the end of the vertical rod (32) away from the shelf (31); The wall panel (35) is located at the end of the guide plate (34) away from the axis of the vertical rod (32), and the wall panel (35) is snapped into the regulating chamber (1); The limiting post (36) is snapped into the middle of the end face of the wall panel (35) near the guide plate (34); Pressure ring (37) is fitted onto the outer wall of online limiting post (36); Warning lights (38), a total of four, are installed in pairs on the outer wall of the regulating chamber (1) in a symmetrical manner.

9. A violin (11) string tension adjustment and control device according to claim 3, characterized in that: The adjustment unit (4) includes: The grid compartment (41) is snap-fitted into the middle of the inner end of the regulating chamber (1) away from the guide plate (34); in addition, the channel steel frame (51) is snap-fitted into the grid compartment (41) for installation. Four corner brackets (42) are installed in an array and slidably snapped onto the end face of the gate compartment (41) away from the guide plate (34); The micro motor (43) is mounted on the horizontal section of the corner bracket (42) by means of a mounting base, and the output shaft of the micro motor (43) passes through the horizontal section of the corner bracket (42); The end seat (44) is snapped onto the end face of the vertical section of the corner bracket (42) near the micro motor (43); The shaft seat (45) is snapped onto the end of the end seat (44) away from the corner bracket (42), and the shaft seat (45) is snapped onto the output end of the micro motor (43) and slidably mounted on the gate compartment (41); The electric lifting column (46) is snapped onto the end of the shaft seat (45) away from the corner bracket (42); The silo (47) is snapped onto the end of the electric lifting column (46) away from the bearing seat (45); The central guard post (48) is inserted and installed in the middle of the inner wall of the silo (47) near the bearing seat (45).

10. A violin (11) string tension adjustment and control device according to claim 3, characterized in that: The silo (47) has a pair of support plates (411) symmetrically snapped onto the outer side of the inner wall near the shaft seat (45). The support plates (411) are slidably snapped onto each other with telescopic pads (412). The telescopic pads (412) have teeth evenly distributed on the end face near the central guard column (48). The telescopic pads (412) are snapped onto the end away from the shaft seat (45) with a front opening plate (413). The front opening plate (413) is rounded. The regulating chamber (1) is equipped with a violin (11) that is movably connected to the adsorption unit (2). The violin (11) is evenly equipped with fine adjustment columns (12) at the end near the regulating chamber (1).

Images