Knob stabilizing device

Abstract

The utility model provides a kind of knob stabilizing device, including knob, knob lining, bushing, knob potentiometer;The first part of knob lining is fixedly connected with knob, so that knob lining rotates synchronously with knob;Bushing is installed in the mounting hole of external structure, the second part of knob lining is rotatably sleeved in bushing, the inside of knob lining is equipped with recess for cooperating with knob potentiometer;Wherein, there is gap between the second part of knob lining and bushing;When knob rotates, the central axis of rotating lining, the central axis of bushing and the rotation axis of knob are collinear.The device can realize the self-alignment and collineation of the rotation axis of knob lining, bushing and knob potentiometer, reduce the shaking when handle is operated, and provide smooth and stable rotating feeling.

Description

Technical Field

[0001] This utility model relates to the field of potentiometer accessories, and in particular to a knob stabilizing device. Background Technology

[0002] A potentiometer knob is an accessory used to control a potentiometer. It is located on the top of the potentiometer to control electrical equipment, such as audio equipment. The knob relies on the potentiometer's rotating shaft for positioning during use. The knob is prone to wobble due to the shaft's own movement, which can reduce its adjustment accuracy, leading to misoperation or inaccurate adjustment, thus affecting the user experience.

[0003] Therefore, it is desirable to provide a knob stabilizing device to improve the stability of the knob. Utility Model Content

[0004] One or more embodiments of this utility model provide a knob stabilizing device, including a knob, a knob liner, a bushing, and a knob potentiometer; a first part of the knob liner is fixedly connected to the knob, so that the knob liner rotates synchronously with the knob; the bushing is installed in a mounting hole in an external structure, and a second part of the knob liner is rotatably fitted inside the bushing, the inside of the knob liner having a groove for cooperating with the knob potentiometer; wherein, there is a gap between the second part of the knob liner and the bushing; when the knob rotates, the central axis of the rotating liner, the central axis of the bushing, and the rotation axis of the knob are collinear.

[0005] In some embodiments, the rotary potentiometer includes a rotating handle and a potentiometer, the rotating handle being rotatably connected to the potentiometer; the central axis of the groove is collinear with the central axis of the rotating handle, the rotating handle is at least partially located within the groove, and the groove is interference-fitted with the rotating handle.

[0006] In some embodiments, the knob liner and the bushing are slidably connected along the rotation axis, and the knob, when pressed, causes the knob liner to slide along the rotation axis.

[0007] In some embodiments, the gap between the second portion of the knob liner and the bushing is less than a preset value in a direction perpendicular to the rotation axis.

[0008] In some embodiments, the knob stabilizing device further includes a circuit board and a fixing structure for fixing the circuit board to the external structure, wherein the knob potentiometer is mounted on the circuit board.

[0009] In some embodiments, the fixing structure includes a first elastic member and a locking member. A first through hole is formed on the circuit board along the direction of the rotation axis, and the first elastic member is disposed in the first through hole. The first elastic member has a hollow structure inside, and the locking member passes through the hollow structure of the first elastic member and cooperates with the locking fitting on the external structure to fix the circuit board on the external structure.

[0010] In some embodiments, the difference between the outer diameter of the first elastic element at the first through hole and the inner diameter of the first through hole ranges from 1.5 mm to 2.5 mm.

[0011] In some embodiments, the knob stabilizing device further includes an adjusting member, wherein a second through hole perpendicular to the rotation axis is provided on the side wall of the bushing, and the adjusting member is movably inserted into the second through hole.

[0012] In some embodiments, the knob stabilizing device further includes a second elastic element, an annular groove is formed on the outer wall of the knob liner, the second elastic element is disposed in the annular groove, and the outer diameter of the second elastic element is larger than the inner diameter of the liner.

[0013] In some embodiments, an annular gasket is provided between the knob liner and the end face of the bushing near the knob liner, the annular gasket being disposed around the rotation axis.

[0014] This utility model includes, but is not limited to, the following beneficial effects: (1) By using the gap reserved between the knob liner and the bushing, the knob wobble is reduced and a smooth and stable rotation feel is provided; (2) The knob, knob liner, and bushing can make the knob rotate with uniform damping and no looseness, thereby improving the user experience; (3) The knob potentiometer and knob liner can achieve smooth torque transmission and accurate potentiometer signal through groove cooperation, providing clear tactile feedback to the user. Attached Figure Description

[0015] This specification will be further described by way of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting; in these embodiments, the same reference numerals denote the same structures, wherein: Figure 1 This is an exploded structural diagram of a knob stabilizing device according to some embodiments of this specification; Figure 2 This is an exploded structural diagram of a knob stabilizing device according to other embodiments of this specification; Figure 3 This is a three-dimensional structural schematic diagram of the knob stabilizing device shown in some embodiments of this specification; Figure 4 This is a side view of a knob stabilizing device shown in some embodiments of this specification; Figure 5 This is a side view of the fixing structure shown in some embodiments of this specification; Figure 6 This is a side view of a knob stabilizing device with an adjusting element as shown in some embodiments of this specification; Figure 7 This is an exemplary schematic diagram of a knob liner configured with a second elastic element, according to some embodiments of this specification; Figure 8 This is a side view of a knob stabilizing device with a second elastic element configured according to some embodiments of this specification; Figure 9 This is an exemplary schematic diagram of a knob liner with an annular gasket, as shown in some embodiments of this specification.

[0016] Explanation of reference numerals in the attached drawings: 1. Knob; 2. Knob liner; 21. First part; 22. Second part; 3. Bushing; 4. Knob potentiometer; 5. Groove; 6. Rotating handle; 7. Potentiometer; 8. Circuit board; 9. External structure; 91. Mounting hole; 10. First elastic element; 11. Locking element; 12. Locking mating element; 13. First through hole; 14. Second through hole; 15. Adjusting element; 16. Second elastic element; 17. Annular groove; 18. Annular gasket. Detailed Implementation

[0017] To more clearly illustrate the technical solutions of the embodiments in this specification, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this specification. For those skilled in the art, these drawings can be applied to other similar scenarios without creative effort. Unless obvious from the context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0018] It should be understood that the terms “system,” “device,” “unit,” and / or “module” used herein are one way to distinguish different components, elements, parts, sections, or assemblies at different levels. However, if other terms can achieve the same purpose, they may be replaced by other expressions.

[0019] As indicated in this specification and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0020] Flowcharts are used in this specification to illustrate the operations performed by the system according to embodiments of this specification. It should be understood that the preceding or following operations are not necessarily performed in exact order. Instead, the steps can be processed in reverse order or simultaneously. Furthermore, other operations can be added to these processes, or one or more steps can be removed from them.

[0021] Figure 1 This is an exploded structural diagram of a knob stabilizing device according to some embodiments of this specification.

[0022] In some embodiments, such as Figure 1 As shown, the knob stabilizing device may include a knob 1, a knob liner 2, a bushing 3, and a knob potentiometer 4. The first part 21 of the knob liner 2 is fixedly connected to the knob 1, allowing the knob liner 2 to rotate synchronously with the knob 1. The bushing 3 is installed in the mounting hole 91 of the external structure 9. The second part 22 of the knob liner 2 is rotatably fitted inside the bushing 3. The interior of the knob liner 2 has a groove 5 for engaging with the knob potentiometer 4. In some embodiments, there is a gap between the second part 22 of the knob liner 2 and the bushing 3. When the knob 1 rotates, the central axis of the rotating liner 2, the central axis of the bushing 3, and the rotation axis of the knob 1 are collinear.

[0023] Knob 1 refers to a rotating component operated by a user. The user can apply rotational force to knob 1. In some embodiments, knob 1 may be made of plastic, metal, or composite materials. In some embodiments, knob 1 may be cylindrical or cylindrical in shape. In some embodiments, the rotation axis of knob 1 is... Figure 1 The axes DD in the middle coincide.

[0024] The knob liner 2 is a transition structure installed inside the knob, connecting the knob 1 and the bushing 3. The knob liner 2 transmits the rotational force of the knob 1. The knob liner 2 can be made of high-strength engineering plastics or lightweight metals. In some embodiments, the knob liner can be a stepped shaft shape.

[0025] In some embodiments, the knob liner 2 includes a first portion 21 and a second portion 22. The first portion 21 of the knob liner 2 refers to the part of the knob liner 2 that is close to and connected to the knob 1. The second portion 22 of the knob liner 2 refers to the part of the knob liner 2 that is connected to the bushing 3. In some embodiments, the outer diameter of the first portion of the knob liner 2 is larger than the outer diameter of the second portion 22. The first portion and the second portion 22 of the knob liner 2 have a gap in a direction perpendicular to the rotation axis, and this gap is larger than the dimension of the bushing 3 in the direction perpendicular to the rotation axis. The bushing 3 is fitted between the gap between the first portion and the second portion 22 of the knob liner 2.

[0026] In some embodiments, the first part 21 of the knob liner 2 and the knob 1 can be fixedly connected in various ways. These fixed connections can include interference fits, threaded connections, etc. In some embodiments, the first part 21 of the knob liner 2 and the knob 1 can also be fixedly connected in other ways, such as by snap-fit ​​structures, adhesive bonding, or other mechanical fixing methods.

[0027] Bushing 3 refers to the component that connects and supports the knob liner 2 and the knob potentiometer 4. Bushing 3 can be made of wear-resistant materials such as copper, brass, or polyoxymethylene (POM) to provide good self-lubrication and a low coefficient of friction.

[0028] In some embodiments, a second portion of the knob liner 2 is rotatably fitted inside the bushing 3. The outer diameter of the second portion of the knob liner 2 is smaller than the inner diameter of the bushing 3.

[0029] In some embodiments, the inner wall of the bushing 3 or the outer wall of the second part of the knob liner 2 may be treated with low friction or coated with a lubricating material.

[0030] In some embodiments, the bushing 3 is installed in the mounting hole 91 of the external structure 9.

[0031] External structure 9 refers to the support frame that carries the knob potentiometer, such as the panel or housing of a speaker, alarm clock, or other device. Mounting hole 91 refers to the through hole in external structure 9. The inner diameter of mounting hole 91 matches the outer diameter of bushing 3.

[0032] In some embodiments, the bushing 3 can be mounted in the mounting hole 91 of the external structure 9 in various ways. For example, as... Figure 1 As shown, the bushing 3 is provided with a snap-fit ​​structure, which fixes the bushing 3 in the mounting hole 91 of the outer structure 9. The central axis of the bushing 3 is collinear with the central axis of the mounting hole 91. Figure 1 (The axis DD in the middle coincides). For example, the bushing 3 can be installed in the mounting hole 91 of the external structure 9 by interference fit.

[0033] In some embodiments, the bushing 3 may also be installed in the mounting hole 91 of the external structure 9 by other means, such as by threads.

[0034] In some embodiments, there is a gap between the bushing 3 and the outer structure 9 in a direction perpendicular to the rotation axis, thereby allowing the bushing 3 and the outer structure 9 to rotate relative to each other. In some embodiments, the gap between the flange face of the bushing 3 and the outer structure 9 can be 2.0~5.0 mm.

[0035] In some embodiments, the gap between the flange face of the bushing 3 and the outer structure 9 can be 2.0~3.0mm. By setting a gap between the bushing 3 and the outer structure 9, the bushing 3 and the outer structure 9 can be automatically concentric, avoiding the failure of the snap-fit ​​during assembly due to errors in the size of the parts.

[0036] The knob potentiometer 4 is a component that converts the mechanical rotation of the knob 1 into a change in resistance value, thereby outputting an electrical signal. For example, the knob potentiometer 4 can be a variable resistor. The knob potentiometer 4 can adjust the volume, brightness, or other electrical parameters by outputting an electrical signal. The rotation axis of the knob potentiometer 4 is the same as the rotation axis of the knob 1.

[0037] The groove 5 is a cavity of a specific shape formed inside the knob liner 2, used to receive and fix the knob potentiometer 4, ensuring that the knob potentiometer 4 rotates synchronously with the knob liner 2. In some embodiments, the shape of the groove 5 matches the shape of the end of the knob potentiometer 4 near the groove 5. In some embodiments, the knob potentiometer 4 and the groove 5 are interference-fitted.

[0038] In some embodiments, the gap between the second portion 22 of the knob liner 2 and the bushing 3 is less than a preset value in a direction perpendicular to the rotation axis.

[0039] In some embodiments, the preset value can be set according to needs or experience. For example, the preset value can be 0.02mm or 0.05mm. The smaller the gap between the second part 22 of the knob liner 2 and the bushing 3, the smaller the amplitude of the knob wobble.

[0040] In some embodiments of this specification, by setting the gap between the second part 22 of the knob liner and the bushing to be less than a preset value, the knob liner and the bushing can fit tightly together, preventing the knob from shaking and providing a smoother and more precise operating experience.

[0041] In some embodiments, such as Figure 1 As shown, the rotary potentiometer 4 includes a rotating handle 6 and a potentiometer 7. The rotating handle 6 and the potentiometer 7 are rotatably connected; the central axis of the groove 5 is collinear with the central axis of the rotating handle 6, and the rotating handle 6 is at least partially located within the groove 5, with the groove 5 and the rotating handle 6 having an interference fit.

[0042] In some embodiments, the user can adjust the knob potentiometer 4 by rotating the knob 1.

[0043] Rotary handle 6 refers to a rotatable shaft used to transmit changes in the rotation angle of knob 1 to potentiometer 7. Rotary handle 6 can be cylindrical, D-shaped, or other shapes. In some embodiments, groove 5 matches the shape of rotary handle 6. For example, when rotary handle 6 is a D-shaped shaft, groove 5 is a D-shaped hole.

[0044] Potentiometer 7 is used to receive the rotation angle of the rotating handle 6 and convert it into a variable resistance value, thereby outputting an electrical signal. Potentiometer 7 can be a variable resistor.

[0045] In some embodiments, the rotary handle 6 and the potentiometer 7 can be rotatably connected in various ways. For example, the rotary handle 6 and the potentiometer 7 can be rotatably connected via a bushing structure. Another example is that the rotary handle 6 and the potentiometer 7 can be rotatably connected via a bearing structure. In some embodiments, the rotary handle 6 and the potentiometer 7 can also be rotatably connected in other feasible ways.

[0046] In some embodiments, the central axis of the groove 5 is collinear with the central axis of the rotating handle 6, and the rotating handle 6 is at least partially located within the groove 5, with the groove 5 and the rotating handle 6 having an interference fit. The central axis of the groove 5 refers to the geometric central axis of the groove 5 along the first portion 21 to the second portion 22 of the knob liner 2. The central axis of the rotating handle 6 refers to the geometric central axis of the rotating handle 6 along the first portion 21 to the second portion 22 of the knob liner 2, that is, the rotation axis of the rotating handle 6.

[0047] In some embodiments, the size of the rotating handle 6 is slightly larger than the size of the groove 5, thereby achieving an interference fit between the groove 5 and the rotating handle 6. During assembly, the rotating handle 6 can be at least partially located within the groove 5 by applying external force, cold pressure, or temperature difference, so that the groove 5 and the rotating handle 6 form a tight connection.

[0048] In some embodiments of this specification, by setting the central axis of the groove to be collinear with the central axis of the rotating handle, jamming or wear caused by eccentric rotation can be avoided; by setting the groove and the rotating handle to have an interference fit, it can be ensured that the connection between the groove and the rotating handle is not loose, and the reliability of the transmitted rotation angle can be ensured.

[0049] In some embodiments, such as Figure 1 As shown, the knob inner liner 2 and the bushing 3 are along the rotation axis direction (i.e., Figure 1 The axis (DD direction) is slidably connected, and when the knob 1 is pressed, it drives the knob liner 2 to slide along the rotation axis.

[0050] In some embodiments, the knob liner 2 and the bushing 3 can be slidably connected in various ways. For example, the outer wall of the second part 22 of the knob liner 2 is provided with an annular guide (protrusion or groove) around the central axis, and the inner wall of the bushing 3 is provided with an annular guide fitting (groove or protrusion) matching the annular guide groove around the central axis. The annular guide can slide along the annular guide fitting, thereby realizing the sliding of the knob liner 2 along the inner wall of the bushing 3. As another example, the contact surfaces of the knob liner and the bushing can be made of a low-friction material, such as a polytetrafluoroethylene (PTFE) coating. In some embodiments, the knob liner and the bushing can also be slidably connected in other ways, such as through linear bearings, ball bearings, etc., without limitation.

[0051] In some embodiments, the rotating handle 6 is slidably connected to the potentiometer 7. The rotating handle 6 can slide along the direction of its rotation axis.

[0052] In some embodiments, the diameter of the second portion 22 of the knob liner 2 is greater than the diameter of the end face of the bushing.

[0053] In some embodiments, the user can apply pressure to the button 1 to make the knob liner 2 slide along the rotation axis toward the bushing, thereby driving the rotating handle 6 to slide toward the potentiometer 7. The potentiometer 7 receives the displacement of the rotating handle 6 and triggers the relevant functions of the potentiometer (e.g., power switch, parameter confirmation, etc.).

[0054] In some embodiments, the diameter of the flange face of the bushing 3 is larger than the diameter of the second part 22 of the knob liner 2. When the second part 22 of the knob liner 2 contacts the flange face of the bushing 3 during the sliding process of the bushing, the knob liner 2 stops sliding.

[0055] In some embodiments of this specification, by providing a press function to the knob, the knob can be integrated with multiple functions, reducing panel openings, simplifying operation logic, and improving user experience.

[0056] In some embodiments, the first part 21 of the knob liner 2 is fixedly connected to the knob 1. When the user rotates the knob 1, the knob liner 2 rotates synchronously. The bushing 3 is fixed in the mounting hole 91 of the external structure 9 as a static reference for the central axis. The second part 22 of the knob liner 2 is fitted into the bushing 3 to form a rotatable bushing fit, allowing the knob liner 2 and the knob to rotate freely around the central axis of the bushing 3. The groove 5 inside the knob liner 2 engages with the rotating handle 6 of the knob potentiometer 4. The rotating handle 6 of the knob potentiometer 4 rotates together with the knob 1. The potentiometer 7 receives the rotational change of the knob 1, thereby converting the rotational action of the knob 1 into a resistance change of the potentiometer 7, and then outputting an electrical signal.

[0057] In some embodiments of this specification, the following beneficial effects are included, but not limited to: (1) the gap reserved between the knob liner and the bushing, through the gap fit, cancels out the potential shaking caused by manufacturing tolerances, installation errors or lateral operating forces, and provides a smooth and stable rotation feel; (2) the fit between the knob, the knob liner and the bushing can make the knob rotate with uniform damping and no looseness, thereby improving the user experience; (3) the knob potentiometer and the knob liner can achieve smooth torque transmission and accurate potentiometer signal through the groove fit, providing the user with clear tactile feedback and a smoother and more stable rotation feel.

[0058] Figure 2 This is an exploded structural diagram of a knob stabilizing device according to other embodiments of this specification. Figure 3 This is a three-dimensional structural schematic diagram of a knob stabilizing device according to some embodiments of this specification. Figure 4 This is a side view of a knob stabilizing device shown in some embodiments of this specification.

[0059] In some embodiments, such as Figures 2-4 As shown, the knob stabilizing device also includes a circuit board 8 and a fixing structure for fixing the circuit board 8 to the external structure 9, and the knob potentiometer 4 is mounted on the circuit board 8.

[0060] Circuit board 8 refers to a component that provides electrical connections and signal transmission paths. For example, circuit board 8 can be a printed circuit board (PCBA), a flexible printed circuit board (FPC), etc.

[0061] In some embodiments, the knob potentiometer 4 can be mounted on the circuit board 8 by means of soldering or mechanical fixation (such as clips, adhesives, etc.).

[0062] The fixing structure refers to the device that secures the circuit board 8 to the external structure 9. The fixing structure can be a clip, screw, etc.

[0063] Figure 5 This is a side view of a knob stabilizing device shown in some embodiments of this specification.

[0064] In some embodiments, such as Figure 3 and Figure 5 As shown, the fixing structure includes a first elastic member 10 and a locking member 11. A first through hole 13 is provided on the circuit board 8 along the direction of the rotation axis, and the first elastic member 10 is disposed in the first through hole 13. The first elastic member 10 has a hollow structure inside. The locking member 11 passes through the hollow structure of the first elastic member 10 and cooperates with the locking fitting member 12 on the external structure to fix the circuit board 8 on the external structure 9.

[0065] The first elastic element 10 refers to a component that provides elastic support for the circuit board. For example, the first elastic element 10 can be a rubber pad, silicone pad, etc.

[0066] Locking component 11 refers to a component that, through cooperation with locking mating component 12 of an external structure, secures the circuit board. For example, locking component 11 can be a stepped screw, self-tapping screw, rivet, etc.

[0067] The locking fitting 12 refers to a fixing component on the external structure 9. The locking fitting 12 cooperates with the locking component 11 to achieve the fixing function. For example, the locking fitting 12 can be a screw post, a rivet post, a threaded hole, etc.

[0068] In some embodiments, such as Figure 5 As shown, there is a gap between the locking member 11 and the first elastic member 10, and the gap between the locking member 11 and the first elastic member 10 is less than a first preset value. In some embodiments, the first preset value can be set according to needs or experience. For example, the first preset value can be 2.0 mm or 3.0 mm.

[0069] The first through hole 13 is a hole that penetrates the circuit board 8. The shape of the first through hole 13 can be circular or square. The size of the first through hole 13 matches the outer contour of the first elastic member 10. In some embodiments, the first through hole 13 is disposed through the circuit along the direction of the rotation axis.

[0070] In some embodiments of this specification, the cooperation between the first elastic element and the locking element can provide buffering and shock absorption for the circuit board, ensuring stable installation of the circuit board and stable signal of the knob potentiometer.

[0071] In some embodiments, the outer diameter of the first elastic element 10 at the first through hole 13 (e.g.) Figure 5 As shown in d), it is larger than the inner diameter of the first through hole 13 (e.g., Figure 5 As shown in b), the first elastic element 10 can move in the first through hole 13 in a direction perpendicular to the rotation axis, so that when the knob liner 2 is fitted into the rotating handle 6 and the bushing 3, the knob potentiometer 4 can be adaptively adjusted to ensure that the central axis of the knob potentiometer 4 is collinear with the central axis of the knob liner 2, thereby ensuring the normal assembly and use of the knob stabilizing mechanism.

[0072] In some embodiments, the outer diameter of the first elastic element 10 at the first through hole 13 (e.g.) Figure 5 As shown in d), the inner diameter of the first through hole 13 (e.g.) Figure 5 The difference range shown in b) is 1.5mm-2.5mm.

[0073] In some embodiments, the difference between the outer diameter of the first elastic element 10 at the first through hole 13 and the inner diameter of the first through hole 13 can be one of 1.5mm-1.8mm, 1.8mm-2.2mm, 2.2mm-2.5mm, etc.

[0074] In some embodiments, the difference between the outer diameter of the first elastic member 10 at the first through hole and the inner diameter of the first through hole 13 is one of 1.5 mm, 2.0 mm, or 2.5 mm.

[0075] In some embodiments of this specification, by setting a preset difference range between the outer diameter of the first elastic element at the first through hole and the inner diameter of the first through hole, a reasonable gap can be maintained between the first elastic element and the circuit board. This allows the circuit board to undergo small-amplitude displacement within the fixed structure, enabling the potentiometer connected to the circuit board to adaptively adjust during installation. This achieves self-alignment and collinearity of the knob liner, bushing, and the rotation axis of the knob potentiometer. Furthermore, due to the good buffering effect of the first elastic element, no abnormal noise or rattling is generated when the circuit board contacts the first elastic element during displacement.

[0076] In some embodiments of this specification, the circuit board is fixed to the external structure by a fixing structure, which can reduce circuit board vibration and avoid poor contact caused by bumps.

[0077] Figure 6 This is a side view of a knob stabilizing device with an adjusting element as shown in some embodiments of this specification.

[0078] In some embodiments, such as Figure 6 As shown, the knob stabilizing device also includes an adjusting member 15. A second through hole 14 perpendicular to the rotation axis is provided on the side wall of the bushing 3, and the adjusting member 15 is movably inserted into the second through hole 14.

[0079] Adjusting component 15 refers to the component that dampens the rotation of the adjusting knob, such as a set screw, a spring pin, etc.

[0080] In some embodiments, the adjusting member 15 may be made of a low-strength material such as nylon or brass to prevent scratching of the bushing.

[0081] The second through hole 14 is a through hole on the side wall of the bushing 3. The second through hole 14 can be a threaded hole, a smooth hole, etc.

[0082] In some embodiments, after the end of the adjusting member 15 abuts against the outer wall of the knob liner 2, continued pressure is applied to the adjusting member 15, increasing the pressure of the end of the adjusting member 15 against the outer wall of the knob liner 2, and increasing the frictional resistance generated when the knob 1 rotates. Therefore, by adjusting the position of the adjusting member 15 in the second through hole 14, the rotational damping of the knob 1 can be adjusted.

[0083] In some embodiments of this specification, by providing an adjustment element, users can adjust the rotational damping of the knob according to their personal preferences to achieve personalized settings; after long-term use, if the components of the knob stabilizing device wear down, resulting in reduced rotational damping, the feel can be restored by adjusting the adjustment element.

[0084] Figure 7 This is an exemplary schematic diagram of a knob liner configured with a second elastic element, according to some embodiments of this specification.

[0085] Figure 8 This is a side view of a knob stabilizing device with a second elastic element configured according to some embodiments of this specification.

[0086] In some embodiments, such as Figure 7 and Figure 8 As shown, the knob stabilizing device also includes a second elastic element 16. An annular groove 17 is provided on the outer wall of the knob inner liner 2, and the second elastic element 16 is disposed in the annular groove 17. The outer diameter of the second elastic element 16 is larger than the inner diameter of the bushing 3.

[0087] The second elastic element 16 refers to a component used to form a flexible contact between the knob inner liner 2 and the bushing 3, such as a rubber ring, silicone ring, etc. The second elastic element 16 can be disposed on the outer wall of the second part 22 of the knob inner liner 2, and the second elastic element 16 is a ring structure distributed circumferentially around the outer wall of the second part 22 of the knob inner liner 2.

[0088] The annular groove 17 refers to the recessed groove structure formed along the circumferential direction on the outer wall of the second part 22 of the knob liner 2. The shape of the annular groove 17 matches the shape of the second elastic element 16.

[0089] like Figure 8 As shown, in some embodiments, the outer diameter of the second elastic element 16 is larger than the inner diameter of the bushing 3. When the knob liner 2 is inserted into the bushing 3, the second elastic element 16 is compressed, generating a continuous and uniform radial (perpendicular to the rotation axis) pressure to the outside, tightly pushing the knob liner 2 against one side of the inner wall of the bushing 3, thus forming a preload force so that a flexible contact is formed between the knob liner 2 and the bushing 3.

[0090] In some embodiments of this specification, by providing a second elastic element, a flexible contact is formed between the knob liner and the bushing, which can replace rigid friction, extend the service life of the knob stabilizing device, and improve the user experience; the preload generated by the second elastic element can eliminate gaps, thereby minimizing the radial wobble of the knob; in addition, the preload generated by the second elastic element can produce a smooth, viscous damping feel, improving the user's operating quality.

[0091] Figure 9This is an exemplary schematic diagram of a knob liner with an annular gasket, as shown in some embodiments of this specification.

[0092] like Figure 7 and Figure 9 As shown, in some embodiments, an annular gasket 18 is provided between the end face of the knob liner 2 and the bushing 3 near the knob liner 2, and the annular gasket 18 is arranged around the rotation axis.

[0093] Annular gasket 18 refers to an elastic annular metal component. For example, a corrugated annular gasket.

[0094] The end face of the bushing 3 near the knob inner liner 2 refers to the surface of the bushing 3 facing the knob inner liner 2 in the direction of rotation axis. In some embodiments, when the annular washer 18 is compressed, its own elasticity can continuously generate a preload force on the rotation axis between the knob inner liner 2 and the bushing 3, thereby eliminating all axial clearance and providing rotational friction. The annular washer 18 simultaneously applies a thrust that brings the knob inner liner 2 closer to the bushing 3, and a reaction thrust that brings the bushing 3 closer to the knob inner liner 2. At the same time, due to the friction of the interference fit between the knob 1 and the rotating handle 6, the knob inner liner 2 and the rotating handle 6 remain relatively stationary and are not pushed by the annular washer 18, so that the knob inner liner 2 is always in close contact with the end face of the bushing 3 near the knob inner liner 2.

[0095] In some embodiments of this specification, an annular gasket is provided between the end face of the knob liner and the bushing near the knob liner. The preload of the annular gasket can be used to eliminate the axial gap between the knob liner and the bushing, while ensuring that the knob liner and the bushing are tightly connected, thereby ensuring that the knob will not loosen in the direction of rotation.

[0096] The basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this specification. Such modifications, improvements, and corrections are suggested in this specification and therefore remain within the spirit and scope of the exemplary embodiments described herein.

[0097] Furthermore, this specification uses specific terms to describe embodiments thereof. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that references to "an embodiment," "one embodiment," or "an alternative embodiment" in different locations throughout this specification do not necessarily refer to the same embodiment. Moreover, certain features, structures, or characteristics in one or more embodiments of this specification can be appropriately combined.

[0098] While the foregoing disclosure has discussed various embodiments that may now be considered useful, it should be understood that such details are for illustrative purposes only, and the appended claims are not limited to the disclosed embodiments. Rather, the claims are intended to cover all modifications and equivalent combinations that conform to the spirit and scope of the embodiments described herein. For example, while the system components described above can be implemented using hardware devices, they can also be implemented using software solutions, such as installing the described system on existing servers or mobile devices.

[0099] Similarly, it should be noted that, in order to simplify the descriptions disclosed herein and thus aid in the understanding of one or more embodiments, the foregoing description of embodiments in this specification sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this method of disclosure does not imply that the subject matter of this specification requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0100] In some embodiments, numbers describing the quantity of components and attributes are used. It should be understood that such numbers used in the description of embodiments are modified in some examples with the terms "approximately," "approximately," or "generally." Unless otherwise stated, "approximately," "approximately," or "generally" indicates that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may be changed depending on the characteristics required by individual embodiments. In some embodiments, numerical parameters should take into account specified significant digits and employ a general method of digit reservation. Although the numerical ranges and parameters used to confirm their breadth of range in some embodiments of this specification are approximate values, in specific embodiments, such values ​​are set as precisely as feasible.

[0101] Finally, it should be understood that the embodiments described in this specification are merely illustrative of the principles of the embodiments described herein. Other variations may also fall within the scope of this specification. Therefore, alternative configurations of the embodiments described herein are intended to be illustrative rather than limiting, and should be considered consistent with the teachings of this specification. Accordingly, the embodiments described herein are not limited to those explicitly introduced and described herein.

Claims

1. A knob stabilizing device, characterized in that, Includes knobs, knob liners, bushings, and knob potentiometers; The first part of the knob liner is fixedly connected to the knob, so that the knob liner rotates synchronously with the knob. The bushing is installed in the mounting hole of the external structure, and the second part of the knob liner is rotatably fitted inside the bushing. The inner lining of the knob has a groove for engaging with the knob potentiometer. Wherein, there is a gap between the second part of the knob liner and the bushing; when the knob is rotated, the central axis of the rotating liner, the central axis of the bushing and the rotation axis of the knob are collinear.

2. The knob stabilizing device as described in claim 1, characterized in that, The rotary potentiometer includes a rotating handle and a potentiometer, wherein the rotating handle is rotatably connected to the potentiometer. The central axis of the groove is collinear with the central axis of the rotating handle, the rotating handle is at least partially located within the groove, and the groove and the rotating handle are interference-fitted.

3. The knob stabilizing device as described in claim 2, characterized in that, The knob liner and the bushing are slidably connected along the rotation axis. When the knob is pressed, it causes the knob liner to slide along the rotation axis.

4. The knob stabilizing device as described in claim 1, characterized in that, Along a direction perpendicular to the rotation axis, the gap between the second part of the knob liner and the bushing is less than a preset value.

5. The knob stabilizing device as described in claim 1, characterized in that, The knob stabilizing device also includes a circuit board and a fixing structure for fixing the circuit board to the external structure, wherein the knob potentiometer is mounted on the circuit board.

6. The knob stabilizing device as described in claim 5, characterized in that, The fixing structure includes a first elastic element and a locking element. A first through hole is provided on the circuit board along the direction of the rotation axis, and the first elastic element is disposed in the first through hole. The first elastic element has a hollow structure inside. The locking element passes through the hollow structure of the first elastic element and cooperates with the locking fitting on the external structure to fix the circuit board to the external structure.

7. The knob stabilizing device as described in claim 6, characterized in that, The difference between the outer diameter of the first elastic element at the first through hole and the inner diameter of the first through hole ranges from 1.5mm to 2.5mm.

8. The knob stabilizing device as described in claim 1, characterized in that, The knob stabilizing device also includes an adjusting member. The side wall of the bushing is provided with a second through hole perpendicular to the rotation axis, and the adjusting member is movably inserted into the second through hole.

9. The knob stabilizing device as described in claim 1, characterized in that, The knob stabilizing device further includes a second elastic element. An annular groove is formed on the outer wall of the knob liner, and the second elastic element is disposed in the annular groove. The outer diameter of the second elastic element is larger than the inner diameter of the liner.

10. The knob stabilizing device as claimed in claim 1, characterized in that, An annular gasket is provided between the inner liner of the knob and the end face of the bushing near the inner liner of the knob, and the annular gasket is arranged around the rotation axis.

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