Shock-proof foot for sound equipment

Abstract

The utility model provides a sound equipment shock-proof foot, which relates to the technical field of sound equipment shock-proof, is used for being fixedly connected with the bottom of sound equipment, and comprises a shock-proof foot body, an action cavity is arranged in the shock-proof foot body, and the action cavity is filled with damping oil and at least one ceramic ball; when the sound equipment is vibrated, the vibration is transmitted to the shock-proof foot body, so that the ceramic ball moves in the action cavity and corrugations are generated in the damping oil, vibration energy is absorbed and consumed through the corrugations, and therefore vibration isolation is achieved. The problems that an existing anti-vibration foot is poor in vibration absorption effect, prone to shaking and not beneficial for a user to use are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of acoustic shock absorption, in particular to a shock absorption foot for acoustic equipment. Background Art

[0002] As we all know, vibration is the enemy that affects audio equipment. Excessive vibration will damage the sound quality, resulting in reduced resolution, poor transparency and even increased noise. Not only that, vibration will also affect the performance and life of components. Therefore, shock-absorbing feet are commonly used on existing audio equipment for vibration isolation, isolating low-frequency waves transmitted through the ground to prevent low-frequency waves from resonating with audio equipment. At the same time, shock-absorbing feet can offset the resonance point of the equipment, thereby changing the resonance coefficient of the audio equipment itself and avoiding the interference of low-frequency waves on the audio equipment through the air. However, most of the existing shock-absorbing feet of audio equipment are spring structures, which use the elasticity of the spring to absorb and isolate vibration. This structure often cannot provide sufficient absorption effect and easily leads to a decrease in equipment performance. At the same time, when the shock-absorbing feet with a spring structure are connected to the audio equipment, the audio equipment will be in an unstable state, causing the audio equipment to shake easily, which is not conducive to user use. Utility Model Content

[0003] The utility model discloses a shock-absorbing foot for audio equipment, aiming to improve the problems of poor vibration absorption effect of the existing shock-absorbing foot and easy shaking that is not conducive to user use.

[0004] The utility model adopts the following scheme:

[0005] A shock-absorbing foot for audio equipment is used to be fixedly connected to the bottom of the audio equipment, comprising a shock-absorbing foot body, wherein an action cavity is provided in the shock-absorbing foot body, and the action cavity is filled with damping oil and at least one ceramic ball; when the audio equipment is vibrated, the vibration is transmitted to the shock-absorbing foot body, so that the ceramic ball moves in the action cavity and generates ripples in the damping oil, and the vibration energy is absorbed and consumed by the ripples, thereby achieving vibration isolation.

[0006] Preferably, the shock-absorbing foot body includes an upper shell and a lower shell, the upper shell has a connecting portion extending downward, and an accommodating hole is provided along the axial direction of the connecting portion, the lower shell is provided with an assembly hole, and the connecting portion is inserted into the assembly hole to limit the position so that the accommodating hole cooperates with the inner wall of the assembly hole to form the working chamber.

[0007] Preferably, the connecting portion is columnar, and a limiting groove is arranged along the outer wall ring of the connecting portion. The lower shell is provided with a mounting hole which passes through from the side wall to the assembly hole. The mounting hole is used to be connected with a fastener, and the fastener extends into the limiting groove to limit the upper shell along its axial direction.

[0008] Preferably, the mounting hole is a stepped hole including a straight section and a threaded section, the straight section is arranged close to the outer wall of the lower shell and is provided with a steel ball for sealing the mounting hole, and the threaded section is used to connect with a fastener.

[0009] Preferably, a decorative groove is provided on the outer wall of the lower shell along its circumferential direction, and the width of the decorative groove is smaller than the aperture of the mounting hole.

[0010] Preferably, a threaded hole is provided at one end of the upper shell away from the connecting portion, and the threaded hole is connected to the audio equipment through a threaded connector.

[0011] Preferably, one end of the connecting portion facing the accommodating hole is provided with a chamfer.

[0012] Preferably, the diameter of the ceramic ball is 8 mm.

[0013] Preferably, the ceramic ball is made of silicon nitride (Si 3N 4 ).

[0014] Preferably, the shock-absorbing foot body is made of stainless steel.

[0015] By adopting the above technical solution, the utility model can achieve the following technical effects:

[0016] 1. In the present application, when the audio equipment is subjected to vibrations, these vibrations are transmitted to the ceramic balls, so that the ceramic balls move in the chamber and generate ripples in the damping oil, and the vibration energy is absorbed by the ripples, and as the ripples dissipate, the vibration energy is effectively converted into heat energy and other energy forms that do not affect the audio equipment.

[0017] 2. By using ceramic balls with high hardness, low thermal expansion, excellent wear resistance and excellent vibration damping properties, and damping oil with high thermal stability and consistent damping properties over a wide temperature range, a good damping effect is formed in the action chamber, thereby providing sufficient vibration absorption capacity. Multiple ceramic balls can also be filled in the action chamber, and the mutual friction and collision between the ceramic balls during the vibration process can enhance the vibration reduction effect and achieve multiple vibration reduction.

[0018] 3. The shock-absorbing foot body does not need to use a spring structure, which can keep the audio equipment in a stable assembly state, avoid the audio equipment from shaking relative to the shock-absorbing foot, and facilitate user use. Specifically, the shock-absorbing foot body can be fixedly connected to the audio equipment through a threaded connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figures 1 to 3 It is a schematic diagram of the structure of one embodiment of the utility model at different viewing angles;

[0021] Figure 4 It is a cross-sectional view of one embodiment of the utility model;

[0022] Figure 5 and Figure 6 This is a schematic diagram of the structure of the lower shell of one embodiment of the utility model at different viewing angles;

[0023] Figure 7 and Figure 8 This is a schematic diagram of the structure of the upper shell of one embodiment of the utility model at different viewing angles;

[0024] Fig. 9 It is an exploded view of one embodiment of the utility model.

[0025] icon:

[0026] 1- shock-absorbing foot body; 11- action chamber; 12- upper shell; 121- connection part; 122- accommodation hole; 123- limiting groove; 124- chamfer; 125- threaded hole; 13- lower shell; 131- assembly hole; 132- mounting hole; 133- decorative groove; 14- fastener; 15- steel ball;

[0027] 2- Ceramic ball;

[0028] 3- Damping oil;

[0029] 4-Threaded connector. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0031] Example

[0032] Combination Figures 1 to 9 The present embodiment provides a shock-absorbing foot for audio equipment, which is fixedly connected to the bottom of the audio equipment, and includes a shock-absorbing foot body 1, wherein an action chamber 11 is provided in the shock-absorbing foot body 1, and the action chamber 11 is filled with damping oil 3 and at least one ceramic ball 2; when the audio equipment is vibrated, the vibration is transmitted to the shock-absorbing foot body 1, so that the ceramic ball 2 moves in the action chamber 11 and generates ripples in the damping oil 3, and the vibration energy is absorbed and consumed by the ripples, thereby achieving vibration isolation.

[0033] Exemplarily, a ceramic ball 2 is disposed in the action chamber 11, the diameter of the ceramic ball 2 is 8 mm, and the material of the ceramic ball 2 is preferably silicon nitride (Si3N4) or an equivalent high-hardness, low-density ceramic. The damping oil 3 is preferably silicone oil, and its viscosity is 15000 cSt at 25°C. By adopting a ceramic ball 2 with high hardness, low thermal expansion, excellent wear resistance and excellent vibration damping properties, and a damping oil 3 with high thermal stability and consistent damping properties over a wide temperature range, a good damping effect is formed in the action chamber 11, thereby providing sufficient vibration absorption capacity. In other embodiments, a plurality of ceramic balls 2 can be filled in the action chamber 11, and the mutual friction and collision between the ceramic balls 2 during the vibration process can enhance the vibration reduction effect and achieve multiple vibration reduction.

[0034] It should be noted that when the ceramic ball 2 moves and generates ripples in the damping oil 3, the friction inside the damping oil 3 resists this movement, so the amplitude of the ripples generated is very small. Oils with higher viscosity have greater internal friction, which means they can absorb and dissipate more vibration energy in the form of heat. At the same time, the viscosity of the oil also determines the speed at which the ripples decay or weaken. The ripples of high-viscosity oil decay faster, and the ripples generated by the vibrating ceramic ball 2 will be damped faster. The vibration energy can also be quickly converted into heat and dissipated in the liquid, thereby preventing it from being transmitted to the audio equipment. In addition, viscosity is also related to the ability of the oil to handle and dissipate heat energy. High-viscosity oils usually have better thermal stability, so they can absorb more energy without significantly changing their damping characteristics, which ensures consistent performance even under continuous or high-energy vibration conditions. In summary, high-viscosity oils are better at suppressing low-frequency vibrations because they provide greater resistance to slowly moving ripples and are suitable for use in equipment that requires low-frequency isolation. Medium-viscosity oils, which are suitable for a wider frequency range, can effectively absorb energy but will not excessively suppress high-frequency vibrations that may be important in the equipment.

[0035] In a preferred embodiment, the shock absorber foot body 1 includes an upper shell 12 and a lower shell 13, the upper shell 12 has a connecting portion 121 extending downward, and a receiving hole 122 is provided along the axial direction of the connecting portion 121, and the lower shell 13 is provided with an assembly hole 131, and the connecting portion 121 is inserted into the assembly hole 131 to limit the position, so that the receiving hole 122 cooperates with the inner wall of the assembly hole 131 to form an action chamber 11. The size of the action chamber 11 is sufficient to allow the ceramic ball 2 to move and the damping oil 3 to generate ripples. Preferably, the material of the shock absorber foot body 1 is preferably stainless steel or other durable, non-reactive materials. Exemplarily, the upper shell 12 and the lower shell 13 are both made of stainless steel to avoid the reaction between the action chamber 11 and the damping oil 3, so as to ensure the damping effect of the damping oil 3.

[0036] Furthermore, the connecting portion 121 is columnar, and a limiting groove 123 is provided along the outer wall of the connecting portion 121. The lower shell 13 is provided with a mounting hole 132 that passes from the side wall to the assembly hole 131. The mounting hole 132 is used to connect with the fastener 14, and the fastener 14 is extended in the limiting groove 123 to limit the upper shell 12 along its axial direction. In one embodiment, the mounting hole 132 is a stepped hole including a straight section and a threaded section. The straight section is arranged close to the outer wall of the lower shell 13 and is provided with a steel ball 15 for sealing the mounting hole 132. The threaded section is used to connect with the fastener 14. For example, the aperture size of the straight section is larger than the aperture size of the threaded section, and the fastener 14 is a hexagon socket screw. During installation, the connecting portion 121 of the upper shell 12 is first inserted into the assembly hole 131 of the lower shell 13, and then the hexagon socket screw and the threaded section are locked along the mounting hole 132 on the side wall of the lower shell 13. At the same time, the hexagon socket screw is inserted into the limiting groove 123 and pressed against the wall surface of the limiting groove 123, so that the upper shell 12 is limited and fixed. Finally, the steel ball 15 is inserted into the straight section of the mounting hole 132 to seal the mounting hole 132 and prevent the damping oil 3 from leaking out. Preferably, a chamfer 124 is provided at one end of the connecting portion 121 facing the accommodating hole 122, so that the connecting portion 121 can be placed in the accommodating hole 122 for easy installation.

[0037] On the basis of the above embodiments, in an optional embodiment of the utility model, a decorative groove 133 is provided on the outer wall of the lower shell 13 along its circumferential direction, and the width of the decorative groove 133 is smaller than the aperture of the mounting hole 132. In one embodiment, the decorative groove 133 passes through the mounting hole 132, and the color of the decorative groove 133 is set to be different from the color of the outer wall of the lower shell 13, so as to enhance the aesthetic appearance of the shock-absorbing foot. In another embodiment, the thickness of the upper shell 12 exposed to the lower shell 13 is set to be the same as the height from the decorative groove 133 to the top surface of the lower shell 13, so as to improve the integrity of the appearance of the shock-absorbing foot, but it is not limited to this and is not specifically limited.

[0038] In other embodiments, a threaded hole 125 is provided at one end of the upper shell 12 away from the connection portion 121, and the threaded hole 125 is connected to the audio device through a threaded connector 4. The threaded connector 4 can be configured to have a large end and a small end, wherein the large end is used to connect to the threaded hole 125, and the small end is used to connect to the audio device. During installation, the large end can be screwed first before the threaded hole 125, and then the small end can be installed into the audio device, which is convenient for installation. At the same time, the fixed connection through the threaded connector 4 can put the audio device in a stable assembly state, prevent the audio device from shaking relative to the shock-absorbing foot, and facilitate user use.

[0039] The above are only preferred implementations of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions under the concept of the present utility model belong to the protection scope of the present utility model.

Claims

1. A shock-absorbing foot for audio equipment, used for fixed connection with the bottom of the audio equipment, characterized in that: It includes a shock-absorbing foot body, in which an action cavity is arranged, and the action cavity is filled with damping oil and at least one ceramic ball. When the audio equipment is vibrated, the vibration is transmitted to the shock-absorbing foot body, so that the ceramic ball moves in the action cavity and generates ripples in the damping oil, and the vibration energy is absorbed and consumed by the ripples, thereby achieving vibration isolation.

2. The shock-absorbing foot for audio equipment according to claim 1, characterized in that: The shock-absorbing foot body includes an upper shell and a lower shell, the upper shell has a connecting portion extending downward, a receiving hole is provided along the axial direction of the connecting portion, and the lower shell is provided with an assembly hole, the connecting portion is inserted into the assembly hole and limited, so that the receiving hole cooperates with the inner wall of the assembly hole to form the working chamber.

3. The shock-absorbing foot for audio equipment according to claim 2, characterized in that: The connecting portion is columnar, and a limiting groove is arranged along the outer wall ring of the connecting portion. The lower shell is provided with a mounting hole which passes through from the side wall to the assembly hole. The mounting hole is used to connect with a fastener, and the fastener is extended into the limiting groove to limit the upper shell along its axial direction.

4. The shock-absorbing foot for audio equipment according to claim 3, characterized in that: The mounting hole is a stepped hole including a straight section and a threaded section. The straight section is arranged close to the outer wall of the lower shell and is provided with a steel ball for sealing the mounting hole. The threaded section is used to connect with a fastener.

5. The shock-absorbing foot for audio equipment according to claim 3 or 4, characterized in that: A decorative groove is arranged on the outer wall of the lower shell along its circumferential direction, and the width of the decorative groove is smaller than the aperture of the mounting hole.

6. The shock-absorbing foot for audio equipment according to claim 2, characterized in that: A threaded hole is provided at one end of the upper shell away from the connecting portion, and the threaded hole is connected to the audio equipment through a threaded connector.

7. The shock-absorbing foot for audio equipment according to claim 2, characterized in that: One end of the connecting portion facing the accommodating hole is provided with a chamfer.

8. The shock-absorbing foot for audio equipment according to claim 1, characterized in that: The diameter of the ceramic ball is 8 mm.

9. The shock-absorbing foot for audio equipment according to claim 1, characterized in that: The material of the ceramic ball is silicon nitride (Si 3N 4 ).

10. The shock-absorbing foot for audio equipment according to claim 1, characterized in that: The material of the shock-absorbing foot body is stainless steel.

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