A string damper with adjustable clamping force
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-19
- Publication Date
- 2026-08-11
AI Technical Summary
[0003]夹紧力不可调:固定式制音夹无法适应不同琴弦张力或演奏需求,易导致制音不足或过度抑制振动;
[0021]初始状态:上夹板与下夹板的第一端(夹持端)堆叠,形成夹持琴弦的开口,上夹板第二端和下夹板第二端通过交错转动连接构成杠杆支点;
Smart Images

Figure CN224625178U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of musical instrument technology, specifically to a string damper with adjustable clamping force. Background Technology
[0002] Traditional string damper clips often employ a fixed clamping force design or a complex adjustment mechanism, which has significant drawbacks:
[0003] The clamping force is not adjustable: Fixed damper clips cannot adapt to different string tensions or playing needs, which can easily lead to insufficient damping or excessive suppression of vibration.
[0004] The adjustment process is cumbersome: some adjustable structures require tools to disassemble and assemble parts, making it impossible to achieve quick and stepless adjustment. Utility Model Content
[0005] This utility model aims to at least partially solve one of the technical problems in the related art. Therefore, one objective of this utility model is to provide a string damper with adjustable clamping force, comprising: an upper clamping plate, a lower clamping plate, and an adjustment assembly;
[0006] The first ends of the upper clamping plate and the lower clamping plate are stacked, and the second ends of the upper clamping plate and the lower clamping plate are rotated and connected in an alternating manner.
[0007] The adjustment component is rotatably disposed at the second end of the upper clamping plate and the lower clamping plate, and is arranged along the thickness direction of the second end of the upper clamping plate and the lower clamping plate. When the adjustment component rotates clockwise, the first end of the upper clamping plate and the lower clamping plate gradually rotates closer to each other. When the adjustment component rotates counterclockwise, the first end of the upper clamping plate and the lower clamping plate gradually rotates further away from each other.
[0008] The bottom of the upper clamping plate and the top of the lower clamping plate are respectively provided with EVA soft pads, and the EVA soft pads are also provided with velvet.
[0009] Preferably, the second end of the upper clamping plate is provided with a mounting groove, which is provided through the thickness direction of the upper clamping plate.
[0010] Preferably, the side of the mounting groove is provided with a first shaft hole, which passes through both sides of the upper clamping plate.
[0011] Preferably, the second end of the lower clamping plate is disposed in the mounting groove, and the second end of the lower clamping plate is provided with a second shaft hole, the second shaft hole passing through both sides of the lower clamping plate, and the first shaft hole and the second shaft hole corresponding to each other.
[0012] Preferably, pins are provided in the first shaft hole and the second shaft hole.
[0013] Preferably, the second end of the upper clamping plate is located at the bottom of the second end of the lower clamping plate.
[0014] Preferably, the second end of the upper clamping plate is provided with a fixing groove, the fixing groove is stepped, and a positioning hole is provided in the middle of the fixing groove, the positioning hole being arranged through the thickness direction of the upper clamping plate.
[0015] Preferably, the bottom of the second end of the upper clamping plate is provided with a nut, and the nut and the positioning hole are located in the same vertical direction.
[0016] Preferably, the second end of the lower clamping plate is provided with a positioning groove, the positioning groove passing through the bottom of the second end of the lower clamping plate, and the top of the second end of the lower clamping plate is provided with an elliptical hole, the elliptical hole being connected to the positioning groove.
[0017] Preferably, the adjustment component includes:
[0018] A high-head screw, one end of which abuts against the second end of the lower clamping plate, and the other end passes through the positioning groove and the fixing groove and is threadedly connected to the nut.
[0019] A spring is sleeved in the middle of the head screw, with one end of the spring abutting against the fixing groove and the other end abutting against the positioning groove.
[0020] The above-described solution of this utility model has at least the following beneficial effects:
[0021] Initial state: The first ends (clamping ends) of the upper and lower clamping plates are stacked to form an opening for clamping the strings. The second ends of the upper and lower clamping plates are connected by staggered rotation to form a lever fulcrum.
[0022] Clamping force adjustment process: When the adjustment component is rotated clockwise, the upper and lower clamping plates rotate relative to each other through the fulcrum at the second end, so that the first ends (clamping ends) of the upper and lower clamping plates rotate closer to each other, thereby increasing the clamping force and enhancing the damping effect; when the adjustment component is rotated counterclockwise, the upper and lower clamping plates are driven to rotate around the fulcrum in the opposite direction, and the first ends (clamping ends) of the upper and lower clamping plates move further apart, thereby reducing the clamping force and releasing the vibration of the strings;
[0023] The opening and closing degree of the clamping end can be continuously controlled by rotating a single adjustment component, adapting to different string specifications and damping intensity requirements. Adjustment can be completed by rotating the adjustment component with one hand, without tools, and supports real-time adjustment during performance. The upper and lower clamps are staggered and connected to form a stable lever to prevent parts from loosening. Moreover, the adjustment component is integrated into the end of the clamp, taking up very little space.
[0024] Furthermore, EVA pads are placed at the bottom of the upper plate and the top of the lower plate (i.e., the parts that directly contact the strings), and a layer of velvet is placed on the surface of the EVA pads. The EVA pads provide elasticity and cushioning, while the velvet provides a soft contact surface. Together, they disperse the clamping pressure and prevent the hard plates from directly contacting and scratching or damaging the strings.
[0025] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0027] Figure 1 This is a schematic diagram of the structure of the string damper clip with adjustable clamping force provided in the embodiment of this utility model;
[0028] Figure 2 yes Figure 1 A schematic diagram of the AA cross-sectional structure;
[0029] Figure 3 This is a schematic diagram of the upper clamping plate provided in an embodiment of the present utility model;
[0030] Figure 4 yes Figure 3 A schematic diagram of the BB cross-sectional structure;
[0031] Figure 5 This is a schematic diagram of the structure of the lower clamping plate provided in an embodiment of the present utility model;
[0032] Figure 6 yes Figure 5 Schematic diagram of CC cross-section structure;
[0033] Figure 7 This is a schematic diagram of the structure of the adjustment component provided in this embodiment of the utility model.
[0034] Explanation of icon numbers:
[0035] 1. Upper clamping plate, 2. Lower clamping plate, 3. Adjustment assembly, 4. EVA pad, 5. Velvet cloth, 6. Pins;
[0036] 101. Mounting slot; 102. First shaft hole; 103. Fixing slot; 104. Positioning hole; 105. Nut.
[0037] 201, second shaft hole; 202, elliptical hole; 203, positioning groove;
[0038] 301, high-head screw; 302, spring.
[0039] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0040] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0044] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0045] The adjustable clamping force string damper of this utility model embodiment is described in detail below with reference to the accompanying drawings.
[0046] Please see Figures 1-7 In this embodiment, it includes: an upper clamping plate 1, a lower clamping plate 2, and an adjusting component 3; the first ends of the upper clamping plate 1 and the lower clamping plate 2 are stacked, and the second ends of the upper clamping plate 1 and the lower clamping plate 2 are alternately rotatably connected; the adjusting component 3 is rotatably disposed at the second ends of the upper clamping plate 1 and the lower clamping plate 2, and is disposed along the thickness direction of the second ends of the upper clamping plate 1 and the lower clamping plate 2. When the adjusting component 3 rotates clockwise, the first ends of the upper clamping plate 1 and the lower clamping plate 2 gradually rotate closer to each other. When the adjusting component 3 rotates counterclockwise, the first ends of the upper clamping plate 1 and the lower clamping plate 2 gradually rotate away from each other; the bottom of the upper clamping plate 1 and the top of the lower clamping plate 2 are respectively provided with EVA soft pads 4, and the EVA soft pads 4 are also provided with velvet 5;
[0047] Initial state: The first ends (clamping ends) of the upper clamping plate 1 and the lower clamping plate 2 are stacked to form an opening for clamping the strings. The second ends of the upper clamping plate 1 and the lower clamping plate 2 are connected by staggered rotation to form a lever fulcrum.
[0048] Clamping force adjustment process: When the adjustment component 3 is rotated clockwise, the upper clamping plate 1 and the lower clamping plate 2 rotate relative to each other through the fulcrum at the second end, so that the first ends (clamping ends) of the upper clamping plate 1 and the lower clamping plate 2 rotate closer to each other, thereby increasing the clamping force of the upper clamping plate 1 and the lower clamping plate 2 and enhancing the damping effect; when the adjustment component 3 is rotated counterclockwise, the upper clamping plate 1 and the lower clamping plate 2 are driven to rotate around the fulcrum in the opposite direction, and the first ends (clamping ends) of the upper clamping plate 1 and the lower clamping plate 2 move further apart, thereby reducing the clamping force of the upper clamping plate 1 and the lower clamping plate 2 and releasing the vibration of the strings;
[0049] The opening and closing degree of the clamping end can be continuously controlled by rotating the single adjustment component 3 to adapt to different string specifications and damping intensity requirements. The adjustment can be completed by rotating the adjustment component 3 with one hand without tools, and supports real-time adjustment during performance. The upper clamp 1 and the lower clamp 2 are staggered and connected to form a stable lever to prevent the parts from loosening. Moreover, the adjustment component 3 is integrated into the end of the clamp, which occupies very little space.
[0050] Furthermore, EVA pads 4 are provided at the bottom of the upper clamping plate 1 and the top of the lower clamping plate 2 (i.e., the parts that directly contact the strings), and a layer of velvet 5 is covered on the surface of the EVA pads 4. The EVA pads 4 provide elasticity and cushioning, while the velvet 5 provides a soft contact surface. Together, they disperse the clamping pressure and prevent the hard clamping plates from directly contacting and scratching or damaging the strings.
[0051] In this embodiment, the second end of the upper clamping plate 1 is provided with a mounting groove 101, which extends through the thickness direction of the upper clamping plate 1; the side of the mounting groove 101 is provided with a first shaft hole 102, which extends through both sides of the upper clamping plate 1; the second end of the lower clamping plate 2 is located in the mounting groove 101, and the second end of the lower clamping plate 2 is provided with a second shaft hole 201, which extends through both sides of the lower clamping plate 2, and the first shaft hole 102 corresponds to the second shaft hole 201; a pin 6 is provided in the first shaft hole 102 and the second shaft hole 201.
[0052] The second end of the lower clamping plate 2 is embedded in the through mounting groove 101 of the upper clamping plate 1. The pin 6 is inserted through the first shaft hole 102 and the second shaft hole 201 that are coaxially aligned to form a stable rotation fulcrum. When the adjusting component 3 (such as the high head screw 301) rotates, the pin 6 acts as a fixed rotating shaft, causing the upper clamping plate 1 and the lower clamping plate 2 to rotate relative to each other around the shaft. This structure converts the linear displacement of the adjusting component 3 (such as screwing in or out) into the opening and closing motion of the first end of the clamping plate (lever principle).
[0053] In this embodiment, the second end of the upper clamping plate 1 is located at the bottom of the second end of the lower clamping plate 2; the second end of the upper clamping plate 1 is provided with a fixing groove 103, which is stepped, and a positioning hole 104 is provided in the middle of the fixing groove 103, which is provided through the thickness direction of the upper clamping plate 1; a nut 105 is provided at the bottom of the second end of the upper clamping plate 1, and the nut 105 and the positioning hole 104 are located in the same vertical direction; the second end of the lower clamping plate 2 is provided with a positioning groove 203, which is provided through the bottom of the second end of the lower clamping plate 2. The lower clamping plate 2 has an elliptical hole 202 at the top of its second end, which is connected to the positioning groove 203. The adjusting assembly 3 includes: a high-head screw 301, one end of which abuts against the second end of the lower clamping plate 2, and the other end passes through the positioning groove 203 and the fixing groove 103 and is threadedly connected to the nut 105; and a spring 302, which is sleeved in the middle of the high-head screw 301, with one end of the spring abutting against the fixing groove 103 and the other end abutting against the positioning groove 203.
[0054] Rotating the head screw 301 clockwise causes it to screw into the nut 105 and compresses the spring 302. The spring 302's thrust forces the upper clamping plate 1 to move downwards and the lower clamping plate 2 to move upwards. Rotating the head screw 301 counterclockwise causes it to gradually unscrew the nut 105, allowing the compressed spring 302 to gradually extend. As the pressure of the spring 302 decreases, the clamping plate returns to its original position, and the second ends of the upper and lower clamping plates 2 move in opposite directions around the pivot pin 6. This drives the first ends (clamping ends) of the upper clamping plate 1 and the lower clamping plate 2 to close or open. The elliptical hole 202 allows the head screw 301 to wobble slightly, adapting to the angle changes during clamping plate rotation and preventing jamming and loosening.
[0055] Furthermore, the composite structure of the thread and spring 302 enables linear clamping force control. For every 1° rotation of the screw, the displacement of the clamping end can be adjusted accordingly, meeting the fine pressure requirements of different strings.
[0056] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0057] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A string mute with adjustable clamping force, characterized in that, include: Upper clamping plate, lower clamping plate, and adjustment assembly; The first ends of the upper clamping plate and the lower clamping plate are stacked, and the second ends of the upper clamping plate and the lower clamping plate are rotated and connected in an alternating manner. The adjustment component is rotatably disposed at the second end of the upper clamping plate and the lower clamping plate, and is arranged along the thickness direction of the second end of the upper clamping plate and the lower clamping plate. When the adjustment component rotates clockwise, the first end of the upper clamping plate and the lower clamping plate gradually rotates closer to each other. When the adjustment component rotates counterclockwise, the first end of the upper clamping plate and the lower clamping plate gradually rotates further away from each other. The bottom of the upper clamping plate and the top of the lower clamping plate are respectively provided with EVA soft pads, and the EVA soft pads are also provided with velvet.
2. The string damper with adjustable clamping force according to claim 1, characterized in that, The second end of the upper clamping plate is provided with a mounting groove, which is provided through the thickness direction of the upper clamping plate.
3. The string damper with adjustable clamping force according to claim 2, characterized in that, The mounting groove has a first shaft hole on its side, which passes through both sides of the upper clamping plate.
4. The string damper with adjustable clamping force according to claim 3, characterized in that, The second end of the lower clamping plate is located in the mounting groove. The second end of the lower clamping plate is provided with a second shaft hole, which passes through both sides of the lower clamping plate, and the first shaft hole corresponds to the second shaft hole.
5. A string damper with adjustable clamping force according to claim 4, characterized in that, The first shaft hole and the second shaft hole are provided with pins.
6. The string damper with adjustable clamping force according to claim 1, characterized in that, The second end of the upper clamping plate is located at the bottom of the second end of the lower clamping plate.
7. A string damper with adjustable clamping force according to claim 1, characterized in that, The second end of the upper clamping plate is provided with a fixing groove, which is stepped, and a positioning hole is provided in the middle of the fixing groove. The positioning hole is provided through the thickness direction of the upper clamping plate.
8. A string damper with adjustable clamping force according to claim 7, characterized in that, The second end of the upper clamping plate is provided with a nut, and the nut and the positioning hole are located in the same vertical direction.
9. A string damper with adjustable clamping force according to claim 8, characterized in that, The second end of the lower clamping plate is provided with a positioning groove, which passes through the bottom of the second end of the lower clamping plate, and the top of the second end of the lower clamping plate is provided with an elliptical hole, which is connected to the positioning groove.
10. A string damper with adjustable clamping force according to claim 9, characterized in that, The adjustment component includes: A high-head screw, one end of which abuts against the second end of the lower clamping plate, and the other end passes through the positioning groove and the fixing groove and is threadedly connected to the nut. A spring is sleeved in the middle of the head screw, with one end of the spring abutting against the fixing groove and the other end abutting against the positioning groove.