A vibration-proof structure of a speaker

Abstract

The utility model discloses a kind of anti-vibration structures of loudspeaker, including loudspeaker body and its below base, the top of base is equipped with the clamping mechanism for clamping the both sides of loudspeaker body, cavity is passed through the bottom of base in base, detachably mounted with bottom plate at the opening of cavity, the below of bottom plate is equipped with support plate, support plate is equipped with several sleeves, several sleeves are all externally threaded with spring one, the upper end surface of support plate and the lower end surface of bottom plate are respectively abutted with the both ends of several spring one, several perforations for sleeve extending upwards to the cavity in bottom plate are equipped, the top center of sleeve is equipped with thread groove one, thread groove one is threadedly connected with threaded column, threaded column extends upwards, and limit plate is equipped at top end, several threaded columns are externally threaded with spring two, the upper end surface of bottom plate and the lower end surface of limit plate are respectively abutted with the both ends of several spring two, the utility model is by setting spring one between bottom plate and support plate, form elastic buffer and absorb the vibration of loudspeaker body.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker technology, specifically a vibration damping structure for a loudspeaker. Background Technology

[0002] A loudspeaker is an electroacoustic transducer that converts electrical signals into sound signals. It is widely used in audio systems, communication equipment, consumer electronics, and automotive electronics. Its basic working principle is that the voice coil vibrates when driven by an electric current in a magnetic field, which in turn moves the diaphragm (or cone) back and forth, thereby pushing air to form sound waves.

[0003] When a loudspeaker is working, its internal sound-producing elements vibrate. This vibration causes significant friction between the loudspeaker and the ground. Over time, this can cause internal parts of the loudspeaker to fall off due to the vibration, and the vibration can also affect the sound quality of the loudspeaker. Utility Model Content

[0004] The purpose of this invention is to provide a vibration-damping structure for a loudspeaker to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A vibration damping structure for a loudspeaker includes a loudspeaker body and a base below it. The top of the base is provided with a clamping mechanism for clamping both sides of the loudspeaker body. The base has a cavity penetrating through the bottom of the base. A base plate is detachably installed at the opening of the cavity. A support plate is provided below the base plate. The support plate has a plurality of sleeves. Each of the sleeves is fitted with a spring. The two ends of the springs abut against the upper end face of the support plate and the lower end face of the base plate, respectively. The base plate has a plurality of through holes for the sleeves to extend upward into the cavity. The top center of each sleeve has a threaded groove. A threaded post is threadedly connected to the threaded groove. The threaded post extends upward and has a limiting plate at its top. The threaded post is fitted with a second spring. The two ends of the second spring abut against the upper end face of the base plate and the lower end face of the limiting plate, respectively.

[0007] Furthermore, at the top of the base plate, a limiting groove is provided on the outer periphery of several of the perforations, and the limiting grooves are coaxially arranged with the corresponding perforations. A limiting part is provided at the connection between the limiting plate and the threaded column. The diameter of the limiting part is the same as the inner diameter of the limiting groove. The top of the second spring is sleeved on the outside of the limiting part, and the bottom extends into the limiting groove.

[0008] Furthermore, the clamping mechanism includes two support seats arranged in parallel on the top of the base, and the two support seats are respectively provided with corresponding placement holes.

[0009] Furthermore, both of the support bases have through holes at their tops in the vertical direction. A fixed post extending upwards is provided within each through hole. The bottom of each fixed post has a downward-opening movable groove. The top of each fixed post has a limiting hole communicating with the movable groove. The diameter of the limiting hole is smaller than the diameter of the movable groove. A sliding post is provided within the movable groove, slidingly engaging with it. The bottom of the sliding post extends downwards into the placement hole and has an abutment portion at its bottom. A gap exists between the top of the sliding post and the bottom of the movable groove. The top of the sliding post has a second threaded groove. A limiting slide rod is provided within the limiting hole, slidingly engaging with it. The bottom of the limiting slide rod extends downwards and has a threaded portion at its bottom end that is threadedly connected to the second threaded groove. The top of the limiting slide rod extends above the fixed post and has a limiting head at its top. A third spring is sleeved on the limiting slide rod, with both ends of the third spring abutting against the top of the sliding post and the bottom of the movable groove, respectively.

[0010] Furthermore, the base has an adjustment hole at its top, and the two support seats have a limiting post at their bottom that slides with the adjustment hole. The bottom of the limiting post has a locking plate, which is located inside the cavity, with its upper end face in contact with the bottom surface of the cavity. The locking plate and the limiting post are fixedly connected together by screws.

[0011] Furthermore, anti-slip pads are provided at the bottom of the two placement holes and the bottom of the two abutment portions.

[0012] The beneficial effects of this utility model are:

[0013] This invention features a support plate located below the base plate, with several sleeves on the support plate. Each sleeve is fitted with a spring, and the two ends of the springs abut against the upper surface of the support plate and the lower surface of the base plate, respectively. This creates an elastic buffer structure between the base plate and the support plate. When the speaker is working, the resulting vibration is transmitted through the speaker body to the base and further to the base plate. At this time, the springs absorb and attenuate the vibration energy through their compression and rebound actions, reducing the transmission of vibration to the support surface. This not only ensures the sound quality performance of the speaker body but also protects the internal sound-producing components of the speaker body from long-term vibration damage.

[0014] By extending several sleeves upwards through the base plate into the cavity, a threaded groove is provided at the center of the top of each sleeve. A threaded post is threadedly connected to the threaded groove, and the threaded post extends upwards with a limiting plate at its top. Several threaded posts are fitted with springs, and the two ends of the springs abut against the upper end face of the base plate and the lower end face of the limiting plate, respectively. By rotating the limiting plate, the threaded posts can be rotated synchronously, thereby adjusting the distance between the limiting plate and the base plate. This change in distance will directly change the compression of the springs, thereby adjusting the initial preload of the springs and adjusting the stiffness of the entire buffer system.

[0015] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0016] Figure 1 : Overall structural diagram of this utility model.

[0017] Figure 2 : Exploded view of the base, bottom plate and support plate of this utility model.

[0018] Figure 3 : A cross-sectional view of the base of this utility model.

[0019] Figure 4 : Cross-sectional view of the clamping mechanism of this utility model.

[0020] Figure 5 : Figure 4 Enlarged view of the structure of part A.

[0021] Reference numerals: 1. Speaker body; 2. Base; 3. Clamping mechanism; 4. Support plate; 5. Spring 1; 6. Spring 2; 21. Cavity; 22. Base plate; 23. Adjustment hole; 24. Through hole; 25. Limiting groove; 31. Support base; 32. Placement hole; 33. Through hole; 34. Fixed post; 35. Sliding post; 36. Limiting slide rod; 37. Limiting head; 38. Spring 3; 39. Limiting post; 41. Sleeve; 42. Threaded groove 1; 43. Threaded post; 44. Limiting plate; 45. Limiting part; 341. Movable groove; 342. Limiting hole; 351. Abutment part; 352. Threaded groove 2; 361. Threaded part; 391. Clamping plate. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] Please refer to Figure 1-5 ;

[0024] A vibration damping structure for a loudspeaker includes a loudspeaker body 1 and a base 2 below it. The top of the base 2 is provided with clamping mechanisms 3 for holding both sides of the loudspeaker body 1, thereby fixing the loudspeaker body 1. The base 2 has a cavity 21 extending through its bottom, and a base plate 22 is detachably installed at the opening of the cavity 21. A support plate 4 is located below the base plate 22, and the support plate 4 has several sleeves 41, each sleeve 41 covered with a spring 5. The two ends of the springs 5 ​​abut against the upper end face of the support plate 4 and the lower end face of the base plate 22, respectively, thus forming an elastic buffer structure between the base plate 22 and the support plate 4. When the loudspeaker operates and emits sound, the generated vibration is transmitted through the loudspeaker body 1 to the base 2 and further to the base plate 22. At this time, the springs 5 ​​absorb and attenuate the vibration energy through their compression and rebound actions, reducing the transmission of vibration to the support plate 4. This not only ensures the sound quality performance of the loudspeaker body 1 but also protects the internal sound-emitting components of the loudspeaker body 1 from long-term vibration damage. The base plate 22 is provided with several through holes 24 for the sleeve 41 to extend upward into the cavity 21. The top center of the sleeve 41 is provided with a threaded groove 42, and a threaded post 43 is threadedly connected in the threaded groove 42. The threaded post 43 extends upward and is provided with a limiting plate 44 at the top. Several threaded posts 43 are fitted with springs 6. The two ends of several springs 6 abut against the upper end face of the base plate 22 and the lower end face of the limiting plate 44, respectively. By rotating the limiting plate 44, the threaded posts 43 can be driven to rotate synchronously, thereby adjusting the distance between the limiting plate 44 and the base plate 22. This change in distance will directly change the compression of springs 6, thereby adjusting the initial preload of springs 5 ​​and realizing the adjustment of the stiffness of the entire buffer system. Specifically, when the limiting plate 44 is screwed downwards, the distance between the limiting plate 44 and the base plate 22 decreases, the second spring 6 is compressed, and thus a downward force is applied to the base plate 22, indirectly increasing the initial compression of the first spring 5 and improving the stiffness of the buffer system. Conversely, when the limiting plate 44 is screwed upwards, the distance increases, the compression of the second spring 6 decreases, the force on the base plate 22 is released, the initial compression of the first spring 5 decreases accordingly, and the stiffness of the buffer system decreases. Through this structure, the support stiffness of the buffer system can be adjusted according to the actual weight of the speaker body 1 to ensure that it has good vibration isolation effect and load-bearing adaptability.

[0025] In this embodiment, a limiting groove 25 is provided on the outer periphery of a plurality of through holes 24 located on the top of the base plate 22. The plurality of limiting grooves 25 are coaxially arranged with the corresponding through holes 24. A limiting part 45 is provided at the connection between the limiting plate 44 and the threaded post 43. The diameter of the limiting part 45 is the same as the inner diameter of the limiting groove 25. The top of the spring 2 6 is sleeved on the outside of the limiting part 45, and the bottom extends into the limiting groove 25 to ensure the stability of the spring 2 6 during compression and rebound and to prevent it from deflecting.

[0026] In this embodiment, the clamping mechanism 3 includes two support seats 31 arranged parallel to each other on the top of the base 2. Each support seat 31 has a corresponding placement hole 32 for supporting the left and right sides of the speaker body 1. Furthermore, each support seat 31 has a through hole 33 in the vertical direction at its top. A fixing post 34 extends upward within the through hole 33. The bottom of the fixing post 34 has a downward-facing movable groove 341. The top of the fixing post 34 has a limiting hole 342 communicating with the movable groove 341. The diameter of the limiting hole 342 is smaller than the diameter of the movable groove 341. A sliding post 35 is slidably engaged with the movable groove 341. The bottom of the sliding post 35 extends downward into the placement hole 32 and has an abutment portion 351 at its bottom. The top of the sliding post 35... A gap is left between the part and the bottom of the movable groove 341. The top of the sliding column 35 is provided with a threaded groove 352. The limiting hole 342 is provided with a limiting slide rod 36 that slides with it. The bottom of the limiting slide rod 36 extends downward and has a threaded part 361 that is threadedly connected to the threaded groove 352 at the bottom end. The top of the limiting slide rod 36 extends to the top of the fixed column 34 and has a limiting head 37 at the top. The limiting slide rod 36 is covered with a spring 38. The two ends of the spring 38 abut against the top of the sliding column 35 and the bottom of the movable groove 341, respectively. When installing the speaker body 1, the operator only needs to pull the two limiting heads 37 upwards, causing the limiting slide rod 36, sliding column 35, and abutment part 351 to move upwards simultaneously. At this time, spring 38 is compressed. Then, the speaker body 1 is placed horizontally into the two placement holes 32. After the speaker body 1 is in place, the limiting heads 37 are released. Under the restoring force of spring 38, sliding column 35 and abutment part 351 automatically return to their downward positions. Abutment part 351 presses against the top of speaker body 1, completing the clamping and fixing. This allows for quick installation and removal of speaker body 1 while ensuring its stability and preventing loosening during operation. Since speaker body 1 vibrates when producing sound, spring 38 needs to have sufficient clamping force to ensure that abutment part 351 can still press against speaker body 1 during vibration, maintaining clamping stability.

[0027] In this embodiment, the top of the base 2 is provided with an adjustment hole 23, and the bottom of the two support seats 31 is provided with a limiting post 39 that slides in conjunction with the adjustment hole 23. The limiting post 39 can slide horizontally within the adjustment hole 23, thereby driving the two support seats 31 to adjust the distance between them to accommodate speaker bodies 1 of different lengths. To prevent the support seats 31 from detaching from the base 2 in the vertical direction, a retaining plate 391 is provided at the bottom of the limiting post 39. The retaining plate 391 is located in the cavity 21, and its upper end face contacts the bottom surface of the cavity 21. The retaining plate 391 and the limiting post 39 are fixedly connected together by screws, thereby playing a limiting role and ensuring that the support seats 31 will not fall off the base 2 due to vibration or external force during use.

[0028] In this embodiment, anti-slip pads are provided at the bottom of the two placement holes 32 and the bottom of the two abutment portions 351 to increase the friction between the contact surface with the speaker body 1 and prevent it from shifting during vibration, thereby improving the stability of clamping.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. A vibration damping structure for a loudspeaker, comprising a loudspeaker body (1) and a base (2) below it, characterized in that, The top of the base (2) is provided with clamping mechanisms (3) for clamping both sides of the speaker body (1). The base (2) has a cavity (21) penetrating the bottom of the base (2). A base plate (22) is detachably installed at the opening of the cavity (21). A support plate (4) is provided below the base plate (22). A plurality of sleeves (41) are provided on the support plate (4). Each of the sleeves (41) is fitted with a spring (5). The two ends of the springs (5) are respectively connected to the upper end face of the support plate (4) and the lower end face of the base plate (22). The end faces abut against each other. The base plate (22) is provided with a plurality of through holes (24) for the sleeve (41) to extend upward into the cavity (21). The top center of the sleeve (41) is provided with a threaded groove (42). A threaded post (43) is threadedly connected in the threaded groove (42). The threaded post (43) extends upward and is provided with a limiting plate (44) at the top. A plurality of threaded posts (43) are covered with springs (6). The two ends of the plurality of springs (6) abut against the upper end face of the base plate (22) and the lower end face of the limiting plate (44) respectively.

2. The vibration damping structure for a loudspeaker according to claim 1, characterized in that, Located at the top of the base plate (22), a limiting groove (25) is provided on the outer periphery of several of the perforations (24), and the limiting grooves (25) are coaxially arranged with the corresponding perforations (24). A limiting part (45) is provided at the connection between the limiting plate (44) and the threaded column (43). The diameter of the limiting part (45) is the same as the inner diameter of the limiting groove (25). The top of the second spring (6) is sleeved on the outside of the limiting part (45), and the bottom extends into the limiting groove (25).

3. The vibration damping structure for a loudspeaker according to claim 1, characterized in that, The clamping mechanism (3) includes two support seats (31) arranged in parallel on the top of the base (2), and the two support seats (31) are respectively provided with corresponding placement holes (32).

4. The vibration damping structure for a loudspeaker according to claim 3, characterized in that, Both of the support bases (31) have through holes (33) on their tops in the vertical direction. A fixed post (34) extends upwards within each through hole (33). The bottom of each fixed post (34) has a downward-facing movable groove (341). The top of each fixed post (34) has a limiting hole (342) communicating with the movable groove (341). The diameter of the limiting hole (342) is smaller than the diameter of the movable groove (341). A sliding post (35) is provided within the movable groove (341) and slides within it. The bottom of the sliding post (35) extends downwards into the placement hole (32) and has an abutment part (351) at its bottom. A gap is left between the top of the sliding column (35) and the bottom of the movable groove (341). The top of the sliding column (35) is provided with a threaded groove (352). The limiting hole (342) is provided with a limiting slide rod (36) that slides with it. The bottom of the limiting slide rod (36) extends downward and has a threaded part (361) that is threadedly connected to the threaded groove (352) at the bottom end. The top of the limiting slide rod (36) extends to the top of the fixed column (34) and has a limiting head (37) at the top. The limiting slide rod (36) is covered with a spring (38). The two ends of the spring (38) abut against the top of the sliding column (35) and the bottom of the movable groove (341) respectively.

5. The vibration damping structure for a loudspeaker according to claim 4, characterized in that, The base (2) has an adjustment hole (23) at the top, and the two support seats (31) have a limiting post (39) at the bottom that slides with the adjustment hole (23). The limiting post (39) has a locking plate (391) at the bottom. The locking plate (391) is located in the cavity (21), and its upper end face is in contact with the bottom surface of the cavity (21). The locking plate (391) and the limiting post (39) are fixedly connected together by screws.

6. The vibration damping structure for a loudspeaker according to claim 4, characterized in that, Anti-slip pads are provided at the bottom of the two placement holes (32) and the bottom of the two abutment portions (351).

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