A type of asymmetrical shelf for speaker vibration damping

Abstract

This utility model discloses a layered asymmetrical bracket for speaker vibration damping, relating to the field of vibration damping bracket technology. It includes: a base plate, with a buffer device fixedly connected to the outer wall of the base plate, an adjustment device fixedly connected to the top of the base plate, and a placement plate fixedly connected to the top of the adjustment device; the buffer device includes a fixing block. This utility model improves upon the traditional parallelogram regularity by setting four asymmetrical buffer devices, changing the regular single-point vibration circle into an irregular multi-point vibration circle, thereby forming multiple dispersed resonant points and multiple fixed vibration frequencies in the frame, making the frame less prone to resonance and achieving optimal sound reproduction. The multi-level buffer structure achieves stepped dissipation of vibration energy, fundamentally solving the problem of high vibration transmission efficiency in traditional brackets. When the speaker generates mechanical vibration during operation, the sliding friction between the sliding rod and the vibration damping frame first consumes some energy.

Description

Technical Field

[0001] This utility model relates to the field of vibration damping bracket technology, specifically to a layered asymmetrical bracket for speaker vibration damping. Background Technology

[0002] In the field of audio equipment, speaker vibration control is one of the key factors affecting sound quality. Traditional speaker brackets mostly adopt a single support structure or a symmetrical parallelogram frame design, which has many technical limitations in practical applications and makes it difficult to meet the stringent vibration suppression requirements of high-fidelity audio systems.

[0003] In terms of structural layout, traditional speaker brackets generally adopt a symmetrical support design, forming a single circular vibration mode. This layout results in a highly concentrated resonant frequency of the bracket system. When the speaker's output frequency is close to the bracket's natural frequency, resonance is easily triggered, leading to a sharp amplification of the vibration amplitude. Common symmetrical four-point support brackets overlap with the resonant frequency band of most speaker bass units, creating a resonance coloration phenomenon that greatly degrades the purity of the audio signal. Utility Model Content

[0004] To address the shortcomings of existing technologies, the technical solution adopted by this utility model is as follows: a layered asymmetrical bracket for speaker vibration damping, comprising: a base plate, a buffer device fixedly connected to the outer wall of the base plate, an adjustment device fixedly connected to the top of the base plate, and a placement plate fixedly connected to the top of the adjustment device; the buffer device includes a fixing block, a mounting plate slidably connected to the bottom end of the fixing block, a sliding rod fixedly connected to the bottom end of the mounting plate, a vibration damping frame slidably connected to the outer wall of the sliding rod, damping rods symmetrically fixedly connected to the outer wall of the vibration damping frame, and buffer springs provided on the outside of the damping rods. By employing four asymmetrical buffer devices, the traditional parallelogram regularity is improved, changing the regular single-point vibration circle into an irregular multi-point vibration circle, thereby forming multiple dispersed resonant points and multiple fixed vibration frequencies in the frame, making the frame less prone to resonance. This achieves the best sound reproduction effect.

[0005] Preferably, the outer wall of the fixed block is fixedly connected to the outer wall of the base plate, the top end of the damping rod is fixedly connected to the outer wall of the mounting plate, the bottom end of the buffer spring is fixedly connected to the outer wall of the vibration damper, and the top end of the buffer spring is fixedly connected to the outer wall of the fixed block. The damping rod generates damping force through the flow of internal hydraulic oil, forming a dynamic balance with the spring. When the mounting plate compresses the spring, the damping rod delays the release of the spring's elastic potential energy through a throttling effect, avoiding resonance superposition. The two ends of the buffer spring are fixed to the fixed block and the vibration damper respectively, and alternately perform elastic deformation to store and release energy during the vibration cycle, converting vibration energy into the spring's potential energy and reducing the vibration amplitude.

[0006] Preferably, an adjusting screw is rotatably connected to the inner wall of the vibration damper frame, and a rotating block is threadedly connected to the top end of the adjusting screw. The outer wall of the rotating block is rotatably connected to the outer wall of the fixed block, and the outer wall of the adjusting screw is slidably connected to the outer walls of the fixed block and the mounting plate. By adjusting the threaded engagement between the adjusting screw and the rotating block, the distance between the mounting plate and the vibration damper frame can be adjusted, as can the initial compression of the buffer spring and the working range of the damping rod.

[0007] Preferably, the adjusting device includes a rotating rod, a worm gear is fixedly connected to the outer wall of the rotating rod, a worm wheel is provided on the outside of the worm gear, a limit rod is provided on the outside of the rotating rod, and a limit cylinder is slidably connected to the outer wall of the limit rod.

[0008] Preferably, the outer wall of the rotating rod is rotatably connected to the inner wall of the base plate, the worm gear is rotatably connected to the inner wall of the base plate, and the worm gear meshes with the worm.

[0009] Preferably, the outer wall of the limiting rod is fixedly connected to the outer wall of the base plate, the outer wall of the limiting cylinder is fixedly connected to the outer wall of the placement plate, and an adjusting screw is fixedly connected to the outer wall of the placement plate. The outer wall of the adjusting screw is threadedly connected to the inner wall of the worm gear.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. This utility model improves upon the traditional parallelogram regularity by setting four asymmetrical buffer devices, changing the regular single-point vibration circle into an irregular multi-point vibration circle. This results in multiple dispersed resonance points and multiple fixed vibration frequencies in the frame, making it less prone to resonance and achieving the best sound reproduction effect. The multi-level buffer structure realizes the step-like dissipation of vibration energy, fundamentally solving the problem of high vibration transmission efficiency of traditional brackets. When the speaker box generates mechanical vibration during operation, the sliding friction between the sliding rod and the vibration damping frame first consumes some energy. The damping rod utilizes the throttling effect of the hydraulic oil medium to form viscous resistance, which, together with the elastic deformation of the buffer spring, realizes the conversion of kinetic energy and potential energy.

[0012] 3. This utility model achieves precise control of the bracket's performance by setting up an adjustment device, using a worm gear adjustment device and a screw-type pre-tightening structure. On one hand, rotating the rotating rod can drive the worm gear transmission, and through the height adjustment screw, it can drive the placement plate to rise and fall smoothly. Combined with the guiding effect of the limiting rod and the limiting cylinder, it can easily adapt to different sizes of speakers and placement environments by adjusting the height of the speaker. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the adjusting device of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the base plate of this utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the buffer device of this utility model;

[0018] Figure 6 This is a schematic diagram of the internal structure of the buffer device of this utility model;

[0019] In the diagram: 1. Base plate; 2. Buffer device; 21. Fixing block; 22. Mounting plate; 23. Vibration damper frame; 24. Damping rod; 25. Buffer spring; 26. Adjusting screw; 27. Rotating block; 28. Sliding rod; 3. Placement plate; 4. Adjusting device; 41. Limiting cylinder; 42. Limiting rod; 43. Height adjustment screw; 44. Worm gear; 45. Worm; 46. Rotating rod. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0021] Example:

[0022] Please see Figure 1 - Figure 6 This utility model provides a technical solution: a layered asymmetrical bracket for speaker vibration damping, comprising: a base plate 1, a buffer device 2 fixedly connected to the outer wall of the base plate 1, an adjustment device 4 fixedly connected to the top of the base plate 1, and a placement plate 3 fixedly connected to the top of the adjustment device 4; the buffer device 2 includes a fixing block 21, a mounting plate 22 slidably connected to the bottom end of the fixing block 21, a sliding rod 28 fixedly connected to the bottom end of the mounting plate 22, a vibration damping frame 23 slidably connected to the outer wall of the sliding rod 28, damping rods 24 symmetrically fixedly connected to the outer wall of the vibration damping frame 23, and a buffer spring 25 provided on the outside of the damping rods 24.

[0023] The outer wall of the fixed block 21 is fixedly connected to the outer wall of the base plate 1, the top end of the damping rod 24 is fixedly connected to the outer wall of the mounting plate 22, the bottom end of the buffer spring 25 is fixedly connected to the outer wall of the vibration damper 23, and the top end of the buffer spring 25 is fixedly connected to the outer wall of the fixed block 21.

[0024] An adjusting screw 26 is rotatably connected to the inner wall of the vibration damper 23. A rotating block 27 is threadedly connected to the top of the adjusting screw 26. The outer wall of the rotating block 27 is rotatably connected to the outer wall of the fixed block 21. The outer wall of the adjusting screw 26 is slidably connected to the outer walls of the fixed block 21 and the mounting plate 22.

[0025] The adjusting device 4 includes a rotating rod 46, a worm gear 45 fixedly connected to the outer wall of the rotating rod 46, a worm wheel 44 provided on the outside of the worm gear 45, a limit rod 42 provided on the outside of the rotating rod 46, and a limit cylinder 41 slidably connected to the outer wall of the limit rod 42.

[0026] The outer wall of the rotating rod 46 is rotatably connected to the inner wall of the base plate 1, the worm wheel 44 is rotatably connected to the inner wall of the base plate 1, and the worm wheel 44 meshes with the worm 45.

[0027] The outer wall of the limiting rod 42 is fixedly connected to the outer wall of the base plate 1, the outer wall of the limiting cylinder 41 is fixedly connected to the outer wall of the placement plate 3, and the outer wall of the placement plate 3 is fixedly connected to the height adjustment screw 43. The outer wall of the height adjustment screw 43 is threadedly connected to the inner wall of the worm gear 44.

[0028] Working principle:

[0029] During use, when the speaker vibration is transmitted to the mounting plate 3, the mounting plate 22 slides along the fixed block 21, causing the sliding rod 28 to move axially within the vibration damping frame 23. The mechanical friction of the sliding pair directly consumes part of the vibration energy. The damping rod 24 generates damping force through the flow of internal hydraulic oil, forming a dynamic balance with the spring 25. When the mounting plate 22 compresses the spring, the damping rod 24 delays the release of the spring's elastic potential energy through a throttling effect, avoiding resonance superposition. The buffer spring 25 is fixed at both ends to the fixed block 21 and the vibration damping frame 23 respectively, and alternately performs elastic deformation to store and release energy within the vibration cycle, converting the vibration energy into the spring's potential energy and reducing the vibration amplitude. By adjusting the threaded engagement between the screw 26 and the rotating block 27, the distance between the mounting plate 22 and the vibration damping frame 23 can be adjusted, thereby adjusting the initial compression of the buffer spring 25 and the working range of the damping rod 24 to achieve dynamic matching of damping characteristics.

[0030] The adjustment device rotates the rotating rod 46 to drive the fixedly connected worm gear 45 to rotate, which in turn drives the worm wheel 44 to rotate. When the worm wheel 44 rotates, it drives the height adjustment screw 43, which is threaded to its inner wall, to move axially. Under the sliding cooperation of the limiting rod 42 and the limiting cylinder 41, the placement plate 3 is raised and lowered smoothly, thus adjusting the height of the speaker's center of gravity.

[0031] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A laminated asymmetric bracket for a sound box vibration avoidance, comprising: The base plate (1) is characterized in that a buffer device (2) is fixedly connected to the outer wall of the base plate (1), an adjustment device (4) is fixedly connected to the top of the base plate (1), and a placement plate (3) is fixedly connected to the top of the adjustment device (4). The buffer device (2) includes a fixed block (21), a mounting plate (22) is slidably connected to the bottom end of the fixed block (21), a sliding rod (28) is fixedly connected to the bottom end of the mounting plate (22), a vibration damping frame (23) is slidably connected to the outer wall of the sliding rod (28), a damping rod (24) is symmetrically fixedly connected to the outer wall of the vibration damping frame (23), and a buffer spring (25) is provided on the outside of the damping rod (24).

2. The laminated asymmetric bracket for a sound box to avoid vibration according to claim 1, characterized in that: The outer wall of the fixed block (21) is fixedly connected to the outer wall of the base plate (1), the top end of the damping rod (24) is fixedly connected to the outer wall of the mounting plate (22), the bottom end of the buffer spring (25) is fixedly connected to the outer wall of the vibration damper (23), and the top end of the buffer spring (25) is fixedly connected to the outer wall of the fixed block (21).

3. The laminated asymmetric bracket for a sound box to avoid vibration according to claim 1, characterized in that: The inner wall of the vibration damping frame (23) is rotatably connected to an adjusting screw (26), and the top end of the adjusting screw (26) is threadedly connected to a rotating block (27). The outer wall of the rotating block (27) is rotatably connected to the outer wall of the fixed block (21), and the outer wall of the adjusting screw (26) is slidably connected to the outer walls of the fixed block (21) and the mounting plate (22).

4. The laminated asymmetric bracket for a sound box to avoid vibration according to claim 1, characterized in that: The adjusting device (4) includes a rotating rod (46), a worm gear (45) is fixedly connected to the outer wall of the rotating rod (46), a worm wheel (44) is provided on the outside of the worm gear (45), a limit rod (42) is provided on the outside of the rotating rod (46), and a limit cylinder (41) is slidably connected to the outer wall of the limit rod (42).

5. The laminated asymmetric bracket for a sound box to avoid vibration according to claim 4, characterized in that: The outer wall of the rotating rod (46) is rotatably connected to the inner wall of the base plate (1), the worm wheel (44) is rotatably connected to the inner wall of the base plate (1), and the worm wheel (44) meshes with the worm (45).

6. The laminated asymmetric bracket for a sound box to avoid vibration according to claim 4, characterized in that: The outer wall of the limiting rod (42) is fixedly connected to the outer wall of the base plate (1), the outer wall of the limiting cylinder (41) is fixedly connected to the outer wall of the placement plate (3), the outer wall of the placement plate (3) is fixedly connected to the height adjustment screw (43), and the outer wall of the height adjustment screw (43) is threadedly connected to the inner wall of the worm gear (44).

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