Loudspeaker box screen cloth adjusting device

Abstract

The utility model belongs to the technical field of sound boxes, and particularly relates to a sound box screen cloth adjusting device. The loudspeaker box screen cloth adjusting device comprises a rotating frame and a plurality of adjusting assemblies, the rotating frame is of an annular structure, a containing space is formed in the rotating frame, the adjusting assemblies are all located in the containing space and connected with the rotating frame, the containing space is defined by the adjusting assemblies, and the adjusting assemblies are provided with rolling parts. The rolling part is used for abutting against the screen cloth in the containing space, the rolling part can move towards or away from the containing space along with rotation of the rotating frame so as to clamp or loosen the screen cloth, and the rolling part can further move in the direction of the central axis of the annular structure along with rotation of the rotating frame so as to push the screen cloth. According to the sound box screen cloth adjusting device, compared with the prior art that the screen cloth is adjusted by finger pressing, the labor intensity of workers can be reduced, and the convenience and the operation efficiency are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sound boxes, and in particular relates to a sound box mesh adjustment device. Background Art

[0002] During the speaker production process, there may be a situation where the gap between the mesh and the display is too large, which will result in a poor appearance. The gap can be adjusted manually by pressing the mesh diagonally upward with your fingers. However, pressing with your fingers is very laborious and will cause finger pain for a long time, increasing labor intensity and reducing work efficiency. Utility Model Content

[0003] The purpose of the utility model is to at least solve the problem of high labor intensity of existing operators. This purpose is achieved through the following technical solutions:

[0004] The first aspect of the utility model provides a speaker mesh adjustment device, comprising:

[0005] A rotating frame, the rotating frame is an annular structure, and the rotating frame has a containing space;

[0006] Multiple adjustment components, multiple adjustment components are all located in the accommodating space and are respectively connected to the rotating frame, multiple adjustment components enclose a accommodating space, the adjustment component has a rolling part, the rolling part is arranged at one end of the adjustment component close to the center of the accommodating space, and is used to abut against the mesh cloth in the accommodating space, the adjustment component and the rolling part are telescopically connected, the rolling part can move toward or away from the accommodating space with the rotation of the rotating frame to clamp or loosen the mesh cloth, the rolling axis of the rolling part is perpendicular to the length direction of the adjustment component, and the rolling part can move along the central axis direction of the annular structure with the rotation of the rotating frame to push the mesh cloth.

[0007] According to the speaker mesh adjustment device of the utility model, multiple adjustment components are located in the accommodating space and are used to contact the mesh in the accommodating space. Since the rolling parts of the multiple adjustment components are in contact with the mesh in the accommodating space, as the operator rotates the rotating frame, the rolling parts can be driven to move toward the accommodating space to clamp the mesh, and at the same time, the rolling parts can be driven to move along the central axis direction of the annular structure to push the mesh. Compared with the existing method of adjusting the mesh by pressing with fingers, it can reduce the intensity of manual labor and improve convenience and work efficiency.

[0008] In addition, the speaker mesh adjustment device according to the utility model may also have the following additional technical features:

[0009] In some embodiments of the present invention, the adjustment assembly includes a first guide member, a second guide member and an abutment member, one end of the first guide member is connected to the rotating frame, the other end of the first guide member is connected to the second guide member, and the first guide member can drive the second guide member and the abutment member to move together along the circumferential direction of the annular structure.

[0010] In some embodiments of the present invention, the adjustment assembly also includes a guide shaft, one end of the guide shaft is connected to the abutment member through an elastic member, a guide groove is provided on the side of the rotating frame facing the accommodating space, the other end of the guide shaft is provided in the guide groove and abuts against the bottom of the guide groove, the second guide member is connected to the abutment member, and the abutment member can move toward or away from the accommodating space relative to the second guide member.

[0011] In some embodiments of the utility model, the abutment member includes a bracket portion, the bracket portion is inserted through the second guide member, one end of the bracket portion facing the accommodating space is rotatably connected to the rolling portion, and one end of the bracket portion facing away from the accommodating space abuts against a side of the rotating frame facing the accommodating space.

[0012] In some embodiments of the present invention, the depth of the guide groove decreases along the circumferential direction of the rotating frame.

[0013] In some embodiments of the present invention, an extension direction of the guide groove is arranged at an acute angle to a plane where the rotating frame is located.

[0014] In some embodiments of the present invention, the first guide member includes a slider portion, a connecting portion and a slide rail portion, the two ends of the connecting portion are respectively connected to the slide rail portion and the slider portion, the rotating frame is provided with a first sliding groove on one side along the central axis direction of the annular structure, the first sliding groove extends along the circumference of the rotating frame, the slider portion is arranged in the first sliding groove, and the second guide member is arranged on the outer sleeve of the slide rail portion.

[0015] In some embodiments of the present invention, the second guide member includes a first ring portion and a second ring portion that are connected, the first ring portion is sleeved outside the first guide member and can move relative to the first guide member along the central axis direction of the annular structure, and the abutment member is inserted through the second ring portion.

[0016] In some embodiments of the present invention, the axial direction of the first ring portion and the axial direction of the second ring portion are perpendicularly arranged.

[0017] In some embodiments of the present utility model, the rotating frame is provided with a first hand-held frame and the first hand-held frame is arranged on the outer side of the rotating frame, and the first hand-held frame and the rotating frame are connected and jointly form a first hand-held space;

[0018] And / or, the rotating frame is provided with a second hand-held frame, the second hand-held frame is arranged on the inner side surface of the rotating frame, and the second hand-held frame is connected to the rotating frame and together forms a second hand-held space. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limiting of the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0020] Figure 1 The schematic diagram of the combined structure of the speaker mesh adjustment device, the mesh and the display screen according to the embodiment of the utility model is schematically shown;

[0021] Figure 2 for Figure 1 A schematic diagram of the structure of the mesh adjustment device for the middle speaker;

[0022] Figure 3 for Figure 2 The enlarged structural diagram of the middle A part;

[0023] Figure 4 for Figure 2 A schematic diagram of the top view of the structure of the mesh adjustment device for the middle speaker;

[0024] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0025] Figure 6 for Figure 2 A schematic diagram of the side structure of the mesh adjustment device for the middle speaker box;

[0026] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure in the CC direction;

[0027] Figure 8 for Figure 7 Schematic diagram of the enlarged structure of part D in the middle.

[0028] The reference numerals in the accompanying drawings represent the following:

[0029] 100. Speaker mesh adjustment device;

[0030] 10. rotating frame; 11. accommodating space; 12. accommodating space; 13. first sliding groove; 14. guide groove; 20. adjustment assembly; 211. slider portion; 212. connecting portion; 213. rail portion; 221. first ring portion; 222. second ring portion; 231. bracket portion; 232. rolling portion; 24. guide shaft; 25. elastic member; 31. first hand-held frame; 311. first hand-held space; 32. second hand-held frame; 321. second hand-held space;

[0031] 200, mesh;

[0032] 300. Display screen. DETAILED DESCRIPTION

[0033] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0034] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0035] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0036] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both above and below orientations.

[0037] Figure 1 The combined structural diagram of the speaker mesh adjustment device, mesh and display screen according to the embodiment of the utility model is schematically shown. Figure 2 for Figure 1 The schematic diagram of the structure of the speaker mesh adjustment device. Figure 1 and 2 As shown, the utility model provides a speaker mesh adjustment device 100. The speaker mesh adjustment device 100 in the utility model includes a rotating frame 10 and a plurality of adjustment components 20. The rotating frame 10 is an annular structure. The rotating frame 10 has a accommodating space 11. The plurality of adjustment components 20 are all located in the accommodating space 11 and are respectively connected to the rotating frame 10. The plurality of adjustment components 20 enclose a accommodating space 12. The adjustment component 20 has a rolling portion 232. The rolling portion 232 is arranged at one end of the adjustment component 20 close to the center of the accommodating space 12, and is used to abut against the mesh 200 in the accommodating space 12. The adjustment component 20 is telescopically connected to the rolling portion 232. The rolling axis of the rolling portion 232 is perpendicular to the length direction of the adjustment component 20. The rolling portion 232 can move toward or away from the accommodating space 12 as the rotating frame 10 rotates to clamp or loosen the mesh 200. The rolling portion 232 can also move along the central axis direction of the annular structure (perpendicular to the direction of the adjustment component 20 toward the accommodating space 12) as the rotating frame 10 rotates to push the mesh 200.

[0038] According to the speaker mesh adjustment device 100 of the utility model, multiple adjustment components 20 are located in the accommodating space 11 and are used to contact the mesh 200 of the accommodating space 12. Since the rolling parts 232 of the multiple adjustment components 20 are in contact with the mesh 200 of the accommodating space 12, as the operator rotates the rotating frame 10, the rolling parts 232 can be driven to move toward the accommodating space 12 to clamp the mesh 200, and at the same time, the rolling parts 232 can be driven to move along the central axis direction of the annular structure to push the mesh 200. Compared with the existing method of adjusting the mesh 200 by pressing with fingers, it can reduce the intensity of manual labor and improve convenience and work efficiency.

[0039] Specifically, in this embodiment, a speaker mesh 200, a shell and a speaker display screen 300 are provided in the accommodating space 12. The mesh 200 is covered on the outside of the shell, and the speaker display screen 300 is provided at the top of the shell and pressed on the speaker mesh 200. There is a gap between the speaker display screen 300 and the speaker mesh 200. By rotating the speaker mesh adjustment device 100, the speaker mesh 200 can be clamped or loosened, and the speaker mesh 200 can be pushed to move along the central axis direction of the annular structure. As the speaker mesh 200 moves, the speaker mesh 200 can be made to fit more closely to the speaker display screen 300, thereby reducing the gap and improving the aesthetic effect. At the same time, the labor intensity of the operators can be reduced.

[0040] In some embodiments of the present invention, Figure 3 As shown, the adjustment assembly 20 includes a first guide member, a second guide member and an abutment member. One end of the first guide member is connected to the rotating frame 10, and the other end of the first guide member is connected to the second guide member. Due to the friction between the first guide member and the rotating frame 10, the first guide member can drive the second guide member and the abutment member to move together along the circumferential direction of the annular structure. The second guide member is also connected to the abutment member and can drive the abutment member to move together along the central axis direction of the annular structure. The abutment member can move toward or away from the accommodating space 12 relative to the second guide member, and a rolling portion 232 is provided on the abutment member. In this embodiment, as the operator rotates the rotating frame 10, since the rolling part 232 is against the mesh 200, the first guide member can guide the movement of the rolling part 232 along the circumferential direction of the rotating frame 10, and the second guide member can guide the movement of the rolling part 232 along the central axis direction of the annular structure. At the same time, since the rolling part 232 can move toward the accommodating space 12 as the rotating frame 10 rotates, it is ensured that the rolling part 232 can clamp the mesh 200, and the combined push along the circumferential direction and the central axis direction of the annular structure, finally makes the rolling part 232 push the mesh 200 obliquely upward, so that the speaker mesh 200 is more closely attached to the speaker display screen 300, thereby reducing the gap, improving the aesthetic effect, and reducing the labor intensity of the operator.

[0041] In some embodiments of the present invention, Figure 3 As shown, the abutment member includes a rolling portion 232 and a bracket portion 231, the bracket portion 231 is inserted into the second guide member, the bracket portion 231 has a first end and a second end on the side facing the accommodating space 12, and there is a placement space between the first end and the second end, the rolling portion 232 is located in the placement space, and the opposite ends of the rolling portion 232 are rotatably connected to the first end and the second end respectively, the bracket portion 231 has a third end on the side away from the rolling portion 232, and the rotating frame 10 is provided with a guide groove 14 on the side facing the accommodating space 12, and the third end is provided in the guide groove 14 and abuts against the side of the guide groove 14 away from the rolling portion 232. In this embodiment, the rolling portion 232 is a roller structure, which can rotate around the first end and the second end, and the bracket portion 231 is used to support the rolling portion 232 and support the rolling portion 232 to rotate. The third end of the bracket portion 231 is located in the guide groove 14. As the rotating member rotates, the bracket portion 231 can move circumferentially along the annular structure in the guide groove 14 under the guidance of the first guide member. During the movement of the guide groove 14, the bracket portion 231 can move toward or away from the accommodating space 12, and can move along the central axis direction of the annular structure along the guide member of the second guide member, ultimately pushing the mesh 200.

[0042] In some embodiments of the present invention, Figure 3 As shown, the abutment member further includes a guide shaft 24 and an elastic member 25. A mounting groove is provided in the side of the bracket portion 231 away from the rolling portion 232. The elastic member 25 is located in the mounting groove and one end of the elastic member 25 is connected to the groove bottom of the mounting groove. A portion of the guide shaft 24 is located in the mounting groove and is connected to the other end of the elastic member 25. The end of the guide shaft 24 away from the elastic member 25 is arranged in the guide groove 14 and abuts against the side of the guide groove 14 away from the guide shaft 24. In this embodiment, the mounting groove in the bracket portion 231 is used to place the elastic member 25. The two ends of the elastic member 25 are respectively connected to the groove bottom of the mounting groove and the guide shaft 24, so that the end of the guide shaft 24 away from the elastic member 25 is always abutted in the guide groove 14, and the end of the bracket portion 231 away from the guide groove 14 is always abutted against the mesh 200.

[0043] In some embodiments of the present invention, Figure 6 , 7As shown in Figures 8 and 9, the depth of the guide groove 14 decreases along the circumferential direction of the rotating frame 10. In this embodiment, as the rotating member rotates, since the first guide member is connected to the rotating member, the first guide member can drive the second guide member and the abutment member to move, and at the same time can guide the movement of the second guide member and the abutment member along the circumferential direction of the rotating frame 10. At the same time, since the end of the guide shaft 24 away from the elastic member 25 always abuts against the bottom of the guide groove 14, and since the depth of the guide groove 14 decreases along the circumferential direction of the rotating frame 10, the guide shaft 24 will move toward or away from the accommodating space 12 during the movement of the guide shaft 24 along the circumferential direction of the rotating frame 10, and then the rolling portion 232 of the abutment member connected to the guide shaft 24 abuts or releases the mesh 200, providing a guarantee for the movement of the mesh 200 along the axial direction of the annular structure.

[0044] In some embodiments of the present invention, Figure 4 and 5 As shown, the extension direction of the guide groove 14 is set at an acute angle with the plane where the rotating frame 10 is located. In this embodiment, since the end of the guide shaft 24 away from the elastic member 25 is always in contact with the guide groove 14, and since the extension direction of the guide groove 14 is set at an acute angle with the plane where the rotating frame 10 is located, that is, along the central axis direction of the rotating frame 10, one end of the guide groove 14 is higher than the other end of the guide groove 14, when the guide shaft 24 moves along the circumferential direction of the rotating frame 10, the guide shaft 24 will move along the central axis direction of the annular structure, and at the same time, due to the circumferential motion of the rotating member, the moving direction of the rolling part 232 will be combined into an oblique upward movement, and the mesh 200 will be pushed obliquely upward.

[0045] Specifically, in this embodiment, if Figure 1 As shown, when the rotating frame 10 is rotated clockwise, the first guide member will be slid to the leftmost side of the first sliding groove 13, the guide shaft 24 will slide to the leftmost side of the guide groove 14, and the guide shaft 24 will abut against the highest point of the guide groove 14 (i.e., the position where the groove depth of the guide groove 14 is the shortest). At this time, the force between the rolling part 232 and the mesh 200 is the largest. When the rotating frame 10 continues to rotate clockwise, the mesh 200 will be adjusted under the drive of the rolling part 232. When the rotating frame 10 is rotated counterclockwise, the first guide member retreats, the first guide member will slide to the rightmost side of the first sliding groove 13, the guide shaft 24 will slide to the rightmost side of the guide groove 14, and the guide shaft 24 will reach the lowest point of the guide groove 14 (i.e., the position where the groove depth of the guide groove 14 is the longest). At this time, the rolling part 232 and the mesh 200 are separated.

[0046] In some embodiments of the present invention, Figure 3As shown, the first guide member includes a slider portion 211, a connecting portion 212 and a slide rail portion 213, the two ends of the connecting portion 212 are respectively connected to the slide rail portion 213 and the slider portion 211, a first slide groove 13 is provided on one side of the rotating frame 10 along the central axis direction of the annular structure, the first slide groove 13 extends along the circumference of the rotating frame, the slider portion 211 is provided in the first slide groove 13, and the slide rail portion 213 is provided with a second guide member on its outer sleeve. In this embodiment, the slider portion 211 is located in the first slide groove 13, and can guide the second guide member and the abutment member along the circumferential direction of the rotating frame 10 when the rotating member rotates. The slide rail portion 213 is provided with a second guide member on its outer sleeve, so that the second guide member can guide the abutment member along the central axis direction of the annular structure.

[0047] In some embodiments of the present invention, Figure 1 As shown, the second guide member includes a first ring portion 221 and a second ring portion 222 connected to each other, the first ring portion 221 is sleeved outside the first guide member and can move relative to the first guide member along the central axis direction of the annular structure, and the abutment member is penetrated by the second ring portion 222. In this embodiment, the first ring portion 221 is movably sleeved outside the slide rail portion 213 to facilitate the abutment member to move along the central axis direction of the annular structure, and the second ring portion 222 is movably sleeved outside the abutment member to facilitate the abutment member to move toward or away from the accommodating space 12.

[0048] In some embodiments of the present invention, Figure 3 As shown, the axial direction of the first ring portion 221 is perpendicular to the axial direction of the second ring portion 222. In this embodiment, the axial direction of the first ring portion 221 is parallel to the groove depth direction of the first sliding groove 13, and the axial direction of the second ring portion 222 is parallel to the groove depth direction of the guide groove 14.

[0049] In some embodiments of the present invention, Figure 1 As shown, the first hand-held frame 31 and the second hand-held frame 32 are respectively provided on opposite sides of the rotating frame 10, the first hand-held frame 31 is connected to the rotating frame 10 and together form a first hand-held space 311, and the second hand-held frame 32 is connected to the rotating frame 10 and together form a second hand-held space 321. In this embodiment, the first hand-held frame 31 and the second hand-held frame 32 are convenient for operators to grasp, and the first hand-held space 311 and the second hand-held space 321 are convenient for operators to penetrate their hands, so that the first hand-held frame 31 and the second hand-held frame 32 can be better grasped.

[0050] Furthermore, the operating principle of the speaker mesh adjustment device 100 in the utility model is as follows: the operator first sets the speaker mesh adjustment device 100 outside the mesh 200, and the rolling part 232 at this time will always abut against the surface of the mesh 200 due to the action of the elastic member 25, and then the operator rotates the rotating member, and due to the friction between the first guide member and the first sliding groove 13, the first guide member can drive the second guide member and the abutting member to move along the circumferential direction of the rotating frame 10, and the guide shaft 24 is moved in the guide groove 14. The guide groove 14 slides along the circumferential direction of the rotating frame 10. Since the depth of the guide groove 14 decreases along the circumferential direction of the rotating frame 10, and the extension direction of the guide groove 14 is set at an acute angle to the circumferential direction of the rotating frame 10, the guide shaft 24 can continue to move toward the accommodating space 12 to clamp the mesh cloth 200, and can push the mesh cloth 200 to move obliquely upward, so that the speaker mesh cloth 200 is more closely attached to the speaker display screen 300, thereby reducing the gap and improving the aesthetic effect. At the same time, it can reduce the labor intensity of the operators.

[0051] The above are only preferred specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A speaker mesh adjustment device, characterized in that: include: A rotating frame, the rotating frame is an annular structure, and the rotating frame has a containing space; Multiple adjustment components, multiple adjustment components are all located in the accommodating space and are respectively connected to the rotating frame, multiple adjustment components enclose a accommodating space, the adjustment component has a rolling part, the rolling part is arranged at one end of the adjustment component close to the center of the accommodating space, and is used to abut against the mesh cloth in the accommodating space, the adjustment component and the rolling part are telescopically connected, the rolling part can move toward or away from the accommodating space with the rotation of the rotating frame to clamp or loosen the mesh cloth, the rolling axis of the rolling part is perpendicular to the length direction of the adjustment component, and the rolling part can move along the central axis direction of the annular structure with the rotation of the rotating frame to push the mesh cloth.

2. The speaker mesh adjustment device according to claim 1, characterized in that: The adjustment assembly includes a first guide member, a second guide member and an abutment member, one end of the first guide member is connected to the rotating frame, the other end of the first guide member is connected to the second guide member, and the first guide member can drive the second guide member and the abutment member to move together along the circumferential direction of the annular structure.

3. The speaker mesh adjustment device according to claim 2, characterized in that: The adjustment assembly also includes a guide shaft, one end of which is connected to the abutment member via an elastic member, a guide groove is provided on the side of the rotating frame facing the accommodating space, the other end of the guide shaft is provided in the guide groove and abuts against the bottom of the guide groove, the second guide member is connected to the abutment member, and the abutment member can move toward or away from the accommodating space relative to the second guide member.

4. The speaker mesh adjustment device according to claim 2, characterized in that: The abutment member includes a bracket portion, the bracket portion is inserted into the second guide member, one end of the bracket portion facing the accommodating space is rotatably connected to the rolling portion, and one end of the bracket portion facing away from the accommodating space abuts against a side of the rotating frame facing the accommodating space.

5. The speaker mesh adjustment device according to claim 3, characterized in that: Along the circumferential direction of the rotating frame, the depth of the guide groove decreases gradually.

6. The speaker mesh adjustment device according to claim 3, characterized in that: The extending direction of the guide groove is arranged at an acute angle with the plane where the rotating frame is located.

7. The speaker mesh adjustment device according to claim 2, characterized in that: The first guide member includes a slider portion, a connecting portion and a slide rail portion, the two ends of the connecting portion are respectively connected to the slide rail portion and the slider portion, the rotating frame is provided with a first sliding groove on one side along the central axis direction of the annular structure, the first sliding groove extends along the circumference of the rotating frame, the slider portion is provided in the first sliding groove, and the slide rail portion is provided with the second guide member on its outer sleeve.

8. The speaker mesh adjustment device according to claim 2, characterized in that: The second guide member includes a first ring portion and a second ring portion connected to each other. The first ring portion is sleeved outside the first guide member and can move relative to the first guide member along the central axis direction of the annular structure. The abutment member is inserted through the second ring portion.

9. The speaker mesh adjustment device according to claim 8, characterized in that: The axial direction of the first ring portion and the axial direction of the second ring portion are arranged perpendicularly.

10. The speaker mesh adjustment device according to claim 1, characterized in that: The rotating frame is provided with a first hand-held frame and the first hand-held frame is arranged on the outer side of the rotating frame, the first hand-held frame and the rotating frame are connected and form a first hand-held space together; And / or, the rotating frame is provided with a second hand-held frame, the second hand-held frame is arranged on the inner side surface of the rotating frame, and the second hand-held frame is connected to the rotating frame and together forms a second hand-held space.

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