Rotary lifting loudspeaker mechanism

Abstract

The utility model relates to a rotary lifting loudspeaker mechanism, which comprises a shell and an upper cover covering the shell, the shell is provided with a driving assembly, a lifting assembly and a first elastic piece, the driving assembly is used for driving the lifting assembly to rotate and lift, the lifting assembly is pressed on the first elastic piece, and the first elastic piece is arranged on the upper cover. A lifting assembly is installed on the upper cover, a horn cover is installed on the lifting assembly, the horn cover can stretch out of the upper cover, the bottom of the horn cover is connected with a rotary crumple protection assembly, the rotary crumple protection assembly is embedded in the lifting assembly, the periphery of the horn cover is sleeved with a locking cover, and the locking cover is fixed to the lifting assembly. The utility model has the beneficial effects that the science and technology sense and the attraction of the product can be improved, and the safety and the durability of the equipment are enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a loudspeaker technical field, concretely relates to a kind of rotary lifting loudspeaker mechanism. BACKGROUND

[0002] With the improvement of people's living standards and the promotion of science and technology, people in daily life, more and more high requirements for products, not only consider the performance and quality of product, also pay more and more attention to sense of technology, sense of ritual and novelty, loudspeaker is increasingly widely used in family, commercial and public places, the existing loudspeaker mechanism generally only has lifting function, and lack sufficient stability and safety in the process of designing lifting, when loudspeaker meets external force impact, it is easy to cause the damage of internal component. SUMMARY

[0003] The utility model aims at providing a kind of rotary lifting loudspeaker mechanism that can improve the sense of technology and attraction of product, enhance the safety and durability of equipment.

[0004] A kind of rotary lifting loudspeaker mechanism, including shell and cover on the shell upper cover, the shell is installed with drive assembly, lifting assembly and first elastic piece, the drive assembly is used to drive the lifting assembly rotation lifting, the lifting assembly is pressed on the first elastic piece, the lifting assembly is installed with loudspeaker cover, the loudspeaker cover can extend the upper cover, the loudspeaker cover bottom is connected with rotation collapse protection assembly, the rotation collapse protection assembly is embedded in the lifting assembly, the loudspeaker cover outer periphery is equipped with locking cover, and the locking cover is fixed on the lifting assembly.

[0005] In the above scheme, drive assembly drives lifting assembly to rotate and lift so that the loudspeaker mechanism has technological dynamic beauty, lifting assembly is pressed on first elastic piece, when loudspeaker cover is pressed downward by external force, loudspeaker cover will transmit force to lifting assembly, when loudspeaker cover is rotated by external force to reach certain value, exceed the elastic force provided by first elastic piece, first elastic piece will be compressed, thereby driving entire lifting assembly to collapse downward, play a protective role;When loudspeaker cover is rotated by external force, rotation collapse protection assembly plays a rotating protection role to lifting assembly and loudspeaker cover, prevent excessive rotation or damage due to improper operation, loudspeaker cover outer periphery is equipped with locking cover, and locking cover is fixed on lifting assembly, ensure the stability of loudspeaker cover in the process of rotation lifting, prevent loosening or falling off.

[0006] Further, the shell is provided with connecting column, the lifting assembly includes lifting base, track block and compression ring, the track block is clamped on the connecting column, the compression ring is pressed on the track block and is threadedly connected with the connecting column, and the lifting base is sleeved on the track block and is threadedly connected with the track block.

[0007] In the above scheme, the driving assembly drives the lifting base to make a circular motion, the lifting base makes a lifting motion along the track block, the compression ring is threadedly connected with the connecting column and is pressed on the track block to ensure the stability of the track block, when the loudspeaker cover is pressed downward by external force, the loudspeaker cover transmits the force to the lifting base, the force of the lifting base is transmitted to the track block, the first elastic member is pressed under the track block, when the loudspeaker cover is subjected to external force reaching a certain value, the first elastic member is compressed to drive the entire lifting mechanism to collapse downward, thereby playing a protection role.

[0008] Further, the lifting base comprises an inner rotating part and an outer rotating part, a groove is formed between the inner rotating part and the outer rotating part, a thread is arranged on the inner wall of the inner rotating part, and a plurality of clamping grooves are arranged on the outer wall of the inner rotating part in the axial direction.

[0009] In the above scheme, the outer rotating part is rotationally connected with the driving assembly, the inner rotating part is liftingly connected with the track block through the thread, the clamping grooves arranged on the outer wall of the inner rotating part are used for being connected with the rotating collapse protection assembly, the inner rotating part and the outer rotating part are integrally formed and the groove is formed at the connected position.

[0010] Further, the rotating collapse protection assembly comprises a first friction plate, a second friction plate and a second elastic member, the first friction plate is clamped with the loudspeaker cover, the second friction plate is clamped with the clamping groove, and the second elastic member is embedded in the groove and abuts against the bottom of the second friction plate.

[0011] In the above scheme, the upper parts of the first friction plate and the second friction plate abut against each other, when the loudspeaker cover is rotated by external force, the force is transmitted to the first friction plate, since the second friction plate is clamped with the inner rotating part through the clamping groove, the first friction plate and the second friction plate generate static friction, the second elastic member provides elastic force as the static friction force, meanwhile, the loudspeaker cover and the locking cover generate static friction, when the loudspeaker cover is rotated by a relatively large external force, the loudspeaker cover and the locking cover and the first friction plate and the second friction plate relatively slide, thereby playing a rotating protection role.

[0012] Further, the driving assembly comprises a rotating driving member, a worm and a worm gear, the driving end of the rotating driving member is meshingly connected with the worm, the outer periphery of the outer rotating part is provided with a meshing structure, and the meshing structure is meshingly connected with the worm gear.

[0013] In the above scheme, the driving end of the rotating driving member drives the worm to rotate, thereby driving the worm gear meshingly connected with the worm to rotate, the worm and the worm gear meshingly transmit the torque force to make a circular motion, the worm gear drives the lifting base to make a circular motion through the meshing with the meshing structure, the lifting base is threadedly connected with the track block, so that the lifting base rotates and lifts along the track block, and finally the lifting and rotating function of the loudspeaker mechanism is realized.

[0014] Further, the shell is provided with a mounting groove, the rotating drive is embedded in the mounting groove, both ends of the mounting groove are provided with limit blocks, and the rotating drive is provided with a motor cover connected with the shell.

[0015] In the above scheme, the shell is provided with a mounting groove, the rotating drive is embedded in the mounting groove, so that the installation of the rotating drive is more stable, the embedded installation reduces the influence of external impact on the drive, improves the compactness and consistency of the overall structure, limit blocks are arranged at both ends of the mounting groove, which can effectively limit the position and movement of the rotating drive, prevent it from deviating or falling off during operation, and the motor cover further enhances the stability and reliability of the installation, and also plays a certain protection role.

[0016] Further, the horn cover comprises a main body part and a step part arranged at the bottom of the main body part, the locking cover comprises a protruding part and a limiting part, the protruding part is arranged around the outer periphery of the main body part, and the limiting part is crimped on the step part.

[0017] In the above scheme, the main body part of the horn cover covers the inner layer rotating part of the lifting base, the first friction plate is clamped on the step part, and the limiting part of the locking cover is crimped on the step part, so that the vertical displacement of the horn cover is limited and the relative sliding between the horn cover and the locking cover when the horn cover is rotated by external force is not affected.

[0018] Further, a plurality of hot melting columns are arranged on the lifting base in the circumferential direction, a plurality of connecting holes are arranged on the limiting part, and the connecting holes correspond one by one to the hot melting columns.

[0019] In the above scheme, the hot melting column can pass through the connecting hole, and then the end of the hot melting column passing through the connecting hole on the locking cover is heated, melted and expanded by hot melting, so as to fix the locking cover on the lifting base and press the horn cover below the locking cover.

[0020] Further, it further comprises a loudspeaker assembly, the loudspeaker assembly is installed on the top of the lifting base and located in the horn cover.

[0021] In the above scheme, the loudspeaker assembly is installed on the top of the lifting base, so that the internal space is more compact and reasonable, facilitating the carrying and arrangement of the equipment, and the loudspeaker assembly close to the top of the horn cover is beneficial to reduce the scattering and loss of sound and improve the definition and level of sound quality.

[0022] Further, the upper cover is provided with a circular through hole, the horn cover can extend out of the through hole, the upper cover is provided with a protruding structure on both sides, and a plurality of mounting holes are arranged on the protruding structure.

[0023] In the above scheme, the design of the horn cover extending through the hole makes the loudspeaker more eye-catching when lifting, increases the dynamic beauty and sense of technology of the device, and improves the visual enjoyment of the user. The protruding structure on both sides of the upper cover and the mounting hole on the protruding structure make the upper cover can be combined with other devices or supports, enhancing the expansibility and compatibility of the device.

[0024] The rotating and lifting loudspeaker mechanism has the beneficial effects of improving the sense of technology and attractiveness of the product, and enhancing the safety and durability of the device. The driving assembly drives the lifting assembly to rotate and lift, so that the loudspeaker mechanism has a dynamic technology, the lifting assembly is pressed on the first elastic member, when the horn cover is pressed downward by external force, the horn cover transmits the force to the lifting assembly, when the horn cover is pressed by external force to a certain value, the first elastic member is compressed, thereby driving the entire lifting assembly to collapse downward, playing a protection role; when the horn cover is rotated by external force, the rotating collapse protection assembly plays a rotating protection role on the lifting assembly and the horn cover, preventing excessive rotation or damage caused by improper operation, the horn cover is sleeved with a locking cover, and the locking cover is fixed on the lifting assembly, ensuring the stability of the horn cover during rotation and lifting, preventing loosening or falling off. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a perspective view of a rotating and lifting loudspeaker mechanism of an embodiment.

[0026] Figure 2 It is a schematic view of the internal structure of a rotating and lifting loudspeaker mechanism of an embodiment.

[0027] Figure 3 It is an exploded view of a rotating and lifting loudspeaker mechanism of an embodiment.

[0028] Figure 4 It is a sectional view of a rotating and lifting loudspeaker mechanism of an embodiment in an ascending state.

[0029] Figure 5 It is a schematic view of a lifting base structure of an embodiment.

[0030] Figure 6 It is a schematic view of the connection of the shell and the motor cover and the track block and the connecting column of an embodiment.

[0031] Figure 7 It is a sectional view of a rotating and lifting loudspeaker mechanism of an embodiment in a descending state.

[0032] Explanation of reference numerals: 1, housing; 101, mounting groove; 102, limiting block; 103, motor cover; 2, upper cover; 21, through hole; 22, protruding structure; 221, mounting hole; 3, driving assembly; 31, rotary driving piece; 32, worm; 33, worm gear; 4, lifting assembly; 41, lifting base; 411, inner layer rotating part; 412, outer layer rotating part; 413, groove; 414, clamping groove; 415, toothed structure; 42, track block; 43, compression ring; 5, first elastic member; 6, horn cover; 61, main body part; 62, step part; 7, rotary collapse protection assembly; 71, first friction plate; 72, second friction plate; 73, second elastic member; 8, locking cover; 81, protruding part; 82, limiting part; 9, connecting column; 10, hot melting column; 11, connecting hole; 12, loudspeaker assembly. DETAILED DESCRIPTION

[0033] A rotary lifting loudspeaker mechanism according to the present application will be described in further detail below with reference to specific embodiments and drawings.

[0034] As Figures 1 to 3 shown in a preferred embodiment, a rotary lifting loudspeaker mechanism according to the present application comprises a housing 1 and an upper cover 2 arranged on the housing 1, a driving assembly 3, a lifting assembly 4 and a first elastic member 5 are mounted on the housing 1, the driving assembly 3 is used to drive the lifting assembly 4 to rotate and lift, the lifting assembly 4 is arranged on the first elastic member 5, a horn cover 6 is mounted on the lifting assembly 4, the horn cover 6 can extend out of the upper cover 2, a rotary collapse protection assembly 7 is connected to the bottom of the horn cover 6, the rotary collapse protection assembly 7 is embedded in the lifting assembly 4, a locking cover 8 is arranged around the horn cover 6, and the locking cover 8 is fixed on the lifting assembly 4.

[0035] In the above embodiment, the driving assembly 3 drives the lifting assembly 4 to rotate and lift, so that the loudspeaker mechanism has a dynamic and scientific beauty, and the product is eye-catching during use, Figure 4 the structure of the rotary lifting loudspeaker mechanism in the lifting state can be seen, Figure 7 the structure of the rotary lifting loudspeaker mechanism in the lowering state can be seen.

[0036] The lifting assembly 4 is pressed on the first elastic member 5. When the speaker cover 6 is pressed downward by an external force, the speaker cover 6 transfers the force to the lifting assembly 4. When the speaker cover 6 is subjected to an external force reaching a certain value, which exceeds the elastic force provided by the first elastic member 5, the first elastic member 5 will be compressed, thereby driving the entire lifting assembly 4 to collapse downward, avoiding damage to the equipment caused by excessive impact force, and playing an effective protective role; when the speaker cover 6 is rotated by an external force, the rotational collapse protection assembly 7 plays a rotational protection role for the lifting assembly 4 and the speaker cover 6, preventing excessive rotation or damage caused by improper operation, further enhancing the safety and durability of the equipment; a locking cover 8 is provided on the outer periphery of the speaker cover 6, and the locking cover 8 is fixed on the lifting assembly 4, ensuring the stability of the speaker cover 6 during the rotation and lifting process, preventing loosening or falling off, and increasing the reliability and stability of the equipment.

[0037] like Figure 3 、 Figure 4 and Figure 6 As shown, in some embodiments, the housing 1 is provided with a connecting post 9, and the lifting assembly 4 includes a lifting base 41, a track block 42, and a clamping ring 43. The track block 42 is clamped onto the connecting post 9, and the clamping ring 43 is pressed onto the track block 42 and threadedly connected to the connecting post 9. The lifting base 41 is sleeved on the track block 42 and threadedly connected to the track block 42. The driving assembly 3 drives the lifting base 41 to perform circular motion, and the lifting base 41 performs lifting motion along the track block 42. The clamping ring 43 is threadedly connected to the connecting post 9 and pressed onto the track block 42 to ensure the stability of the track block 42. When the speaker cover 6 is pressed downward by an external force, the speaker cover 6 transmits the force to the lifting base 41, which is then transmitted to the track block 42. The track block 42 presses the first elastic member 5 below. When the external force applied to the speaker cover 6 reaches a certain value, exceeding the elastic force provided by the first elastic member 5, the first elastic member 5 is compressed, thereby driving the entire lifting mechanism to collapse downward, thereby providing a protective function.

[0038] like Figure 2 and Figure 5 As shown, in some embodiments, the lifting base 41 includes an inner rotating portion 411 and an outer rotating portion 412. A groove 413 is formed between the inner rotating portion 411 and the outer rotating portion 412. The inner rotating portion 411 has threads on its inner wall, and a plurality of slots 414 are axially provided on its outer wall. The outer rotating portion 412 is rotationally connected to the drive assembly 3, while the inner rotating portion 411 is lifted and lowered by the track block 42 via threads. The slots 414 provided on the outer wall of the inner rotating portion 411 are used to connect to the rotational collapse protection assembly 7. The inner rotating portion 411 and the outer rotating portion 412 are integrally formed and have a groove 413 formed at the connection position.

[0039] like Figure 3 and Figure 4As shown, in some embodiments, the rotational collapse protection assembly 7 includes a first friction plate 71, a second friction plate 72 and a second elastic member 73. The first friction plate 71 is clamped to the speaker cover 6, the second friction plate 72 is clamped to the slot 414, and the second elastic member 73 is embedded in the groove 413 and abuts against the bottom of the second friction plate 72. The first friction plate 71 abuts against the upper part of the second friction plate 72. When the speaker cover 6 is rotated by an external force, the force is transmitted to the first friction plate 71. Since the second friction plate 72 is clamped with the inner rotating part 411 through the slot 414, the first friction plate 71 and the second friction plate 72 generate static friction. The second elastic member 73 is embedded in the groove 413 and abuts against the bottom of the second friction plate 72, providing additional elasticity and buffering, thereby enhancing the stability and durability of the static friction and ensuring that the equipment can still maintain good protection performance during long-term and frequent rotation operations. At the same time, static friction will be generated between the speaker cover 6 and the locking cover 8. When the speaker cover 6 is subjected to a large external rotational force, the speaker cover 6 and the locking cover 8 and the first friction plate 71 and the second friction plate 72 slide relative to each other, thereby playing a role in rotation protection.

[0040] like Figure 2 As shown, in some embodiments, the drive assembly 3 includes a rotary drive member 31, a worm 32, and a worm wheel 33. The driving end of the rotary drive member 31 is meshed with the worm 32. A meshing structure 415 is provided on the outer periphery of the outer rotating portion 412. The meshing structure 415 is meshed with the worm wheel 33. The driving end of the rotary drive member 31 drives the worm 32 to rotate, thereby driving the worm wheel 33 meshed with the worm 32 to rotate. The worm 32 and the worm wheel 33 mesh to transmit torque to perform circular motion. The worm wheel 33 drives the lifting base 41 to perform circular motion through tooth meshing. The lifting base 41 is connected to the track block 42 by a thread. In this way, the lifting base 41 rotates and lifts around the track block 42, ultimately realizing the lifting and rotating function of the speaker mechanism.

[0041] like Figure 6 As shown, in some embodiments, a mounting groove 101 is provided on the shell 1, the rotating driving member 31 is embedded in the mounting groove 101, and limit blocks 102 are provided at both ends of the mounting groove 101. The upper cover 2 of the rotating driving member 31 is provided with a motor cover 103, and the motor cover 103 is connected to the shell 1.

[0042] In the above scheme, a mounting groove 101 is provided on the shell 1, and the rotating drive member 31 is embedded in the groove, so that the installation of the rotating drive member 31 is more stable. The embedded installation reduces the impact of external impact on the drive member, and improves the compactness and consistency of the overall structure. Limit blocks 102 are provided at both ends of the mounting groove 101, which can effectively limit the position and movement of the rotating drive member 31 to prevent it from offsetting or falling off during operation. The motor cover 103 further enhances the stability and reliability of the installation, and at the same time plays a certain protective role.

[0043] As shown in Figure 2 and Figure 3 , in some embodiments, the horn cover 6 includes a main body part 61 and a step part 62 arranged at the bottom of the main body part 61, the locking cover 8 includes a protruding part 81 and a limiting part 82, the protruding part 81 is arranged around the outer periphery of the main body part 61, and the limiting part 82 is pressed on the step part 62. The main body part 61 of the horn cover 6 is arranged on the inner layer rotating part 411 of the lifting base 41, the first friction plate 71 is clamped on the step part 62, and the limiting part 82 of the locking cover 8 is pressed on the step part 62. In this way, the vertical displacement of the horn cover 6 is limited, and the relative sliding between the horn cover 6 and the locking cover 8 when the horn cover 6 is rotated by an external force is not affected.

[0044] As shown in Figure 3 and Figure 5 , in some embodiments, a plurality of hot melt columns 10 are arranged on the lifting base 41 in the circumferential direction, and a plurality of connecting holes 11 are arranged on the limiting part 82, which correspond one-to-one with the hot melt columns 10. The hot melt column 10 can pass through the connecting hole 11, and then the end of the hot melt column 10 passing through the connecting hole 11 on the locking cover 8 is heated, melted and expanded by hot melting, so as to fix the locking cover 8 on the lifting base 41, and press the horn cover 6 below the locking cover 8. The above connection method is simple and firm.

[0045] As shown in Figure 3 and Figure 4 , in some embodiments, the loudspeaker assembly 12 is further included, which is installed on the top of the lifting base 41 and located in the horn cover 6. The loudspeaker assembly 12 is installed on the top of the lifting base 41, so that the internal space is more compact and reasonable, facilitating the carrying and arrangement of the device. The loudspeaker assembly 12 is close to the top of the horn cover 6, which is beneficial to reduce the scattering and loss of sound, and improve the clarity and level of sound quality.

[0046] As shown in Figure 1 , in some embodiments, a circular through hole 21 is arranged on the upper cover 2, the horn cover 6 can extend out of the through hole 21, and protruding structures 22 are arranged on both sides of the upper cover 2, and a plurality of mounting holes 221 are arranged on the protruding structures 22. The design that the horn cover 6 extends out of the circular through hole 21 makes the loudspeaker more eye-catching when it is lifted, increases the dynamic beauty and sense of technology of the device, and improves the visual enjoyment of the user. The protruding structures 22 on both sides of the upper cover 2 and the mounting holes 221 on the protruding structures 22 make the upper cover 2 combined with other devices or supports, enhancing the expansibility and compatibility of the device.

[0047] The present invention provides a working principle and process of a rotary lifting loudspeaker mechanism. The driving end of a rotary driving member 31 drives a worm 32 to rotate, thereby driving a worm wheel 33 meshing with the worm 32 to rotate. The worm 32 and the worm wheel 33 mesh to transmit torque to perform circular motion. The worm wheel 33 drives a lifting base 41 to perform circular motion through tooth meshing. The lifting base 41 is connected to a track block 42 by a thread. In this way, the lifting base 41 rotates and lifts around the track block 42, thereby finally realizing the lifting and rotating function of the loudspeaker mechanism.

[0048] When the speaker cover 6 is pressed downward by external force, the speaker cover 6 transmits the force to the lifting base 41, and the force of the lifting base 41 is transmitted to the track block 42. The first elastic member 5 is pressed underneath the track block 42. When the external force applied to the speaker cover 6 reaches a certain value and exceeds the elastic force provided by the first elastic member 5, the first elastic member 5 will be compressed, thereby driving the entire lifting mechanism to collapse downward, thereby playing a protective role.

[0049] When the speaker cover 6 is rotated by an external force, the force is transmitted to the first friction plate 71. Since the second friction plate 72 is engaged with the inner rotating part 411 through the slot 414, the first friction plate 71 and the second friction plate 72 generate static friction. The second elastic member 73 is embedded in the groove 413 and abuts against the bottom of the second friction plate 72, providing additional elastic force and buffering. At the same time, static friction is generated between the speaker cover 6 and the locking cover 8. When the speaker cover 6 is subjected to a large external rotational force, the speaker cover 6 and the locking cover 8, as well as the first friction plate 71 and the second friction plate 72, slide relative to each other, thereby playing a role in rotation protection.

[0050] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0052] In the utility model, unless another definite provision and limitation, the term " install " " link " " connect " " fixed " and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can pass through intermediate medium indirectly connect, can be two element inside's intercommunication or two element's mutual action relation.

[0053] Although the description of the utility model is combined with the above specific embodiment, it is obvious that many substitutions, modifications and changes can be made by the person skilled in the art according to the above content. Therefore, all such substitutions, improvements and changes are included in the spirit and scope of the appended claims.

Claims

1. A rotary lifting speaker mechanism, comprising a housing and an upper cover provided on the housing, characterized in that: A driving assembly, a lifting assembly and a first elastic member are installed on the shell. The driving assembly is used to drive the lifting assembly to rotate and lift. The lifting assembly is pressed on the first elastic member. A speaker cover is installed on the lifting assembly, and the speaker cover can extend out of the upper cover. A rotational collapse protection assembly is connected to the bottom of the speaker cover, and the rotational collapse protection assembly is embedded in the lifting assembly. A locking cover is provided on the outer periphery of the speaker cover, and the locking cover is fixed to the lifting assembly.

2. The rotary lifting speaker mechanism according to claim 1, characterized in that: The shell is provided with a connecting column, and the lifting assembly includes a lifting base, a track block and a clamping ring. The track block is clamped on the connecting column, the clamping ring is pressed on the track block and is threadedly connected to the connecting column, and the lifting base is sleeved on the track block and is threadedly connected to the track block.

3. The rotary lifting speaker mechanism according to claim 2, characterized in that: The lifting base includes an inner rotating part and an outer rotating part, a groove is formed between the inner rotating part and the outer rotating part, the inner wall of the inner rotating part is provided with a thread, and the outer wall of the inner rotating part is provided with multiple slots along the axial direction.

4. The rotary lifting speaker mechanism according to claim 3, characterized in that: The rotational collapse protection assembly includes a first friction plate, a second friction plate and a second elastic member. The first friction plate is clamped with the speaker cover, the second friction plate is clamped with the clamping groove, and the second elastic member is embedded in the groove and abuts against the bottom of the second friction plate.

5. The rotary lifting speaker mechanism according to claim 3, characterized in that: The driving assembly includes a rotary driving member, a worm and a worm wheel. The driving end of the rotary driving member is meshed with the worm. The outer periphery of the outer rotating part is provided with a meshing structure, and the meshing structure is meshed with the worm wheel.

6. The rotary lifting speaker mechanism according to claim 5, characterized in that: The housing is provided with a mounting groove, the rotary drive member is embedded in the mounting groove, both ends of the mounting groove are provided with limit blocks, the rotary drive member is covered with a motor cover, and the motor cover is connected to the housing.

7. The rotary lifting speaker mechanism according to claim 2, characterized in that: The speaker cover includes a main body and a step portion arranged at the bottom of the main body, and the locking cover includes a raised portion and a limiting portion. The raised portion is arranged around the outer periphery of the main body, and the limiting portion is pressed on the step portion.

8. The rotary lifting speaker mechanism according to claim 7, characterized in that: A plurality of heat-melting columns are provided on the lifting base along the circumferential direction, and a plurality of connecting holes are provided on the limiting portion, and the connecting holes correspond to the heat-melting columns one by one.

9. The rotary lifting speaker mechanism according to claim 2, characterized in that: Also included is a speaker assembly, which is mounted on the top of the lifting base and located inside the speaker cover.

10. The rotary lifting speaker mechanism according to claim 1, characterized in that: The upper cover is provided with a circular through hole, and the speaker cover can extend out of the through hole. Both sides of the upper cover are provided with a convex structure, and the convex structure is provided with a plurality of mounting holes.

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