Sound box adjusting support

Abstract

The utility model relates to a sound box adjusting support, and belongs to the technical field of sound equipment installation. The support comprises a mounting plate; one end of the adjusting plate is rotationally connected with the mounting plate through a first rotating shaft, and the adjusting plate can swing on the plane perpendicular to the mounting plate; the supporting part is rotationally connected with the other end of the adjusting plate through a second rotating shaft, and the axis of the second rotating shaft is perpendicular to the axis of the first rotating shaft; a plurality of limiting holes annularly formed in the second rotating shaft are formed in the adjusting plate, pin holes matched with the limiting holes are formed in the supporting part, first pin shafts penetrate through the pin holes, and the first pin shafts are contained in the limiting holes. According to the scheme provided by the invention, the angle of the sound box in the horizontal direction can be adjusted by rotating the adjusting plate, the inclination angle of the sound box can be flexibly adjusted through the first pin shaft, and the debugging requirements of different sound effects are met.

Description

Technical Field

[0001] The present application relates to the technical field of audio equipment installation, and in particular to a speaker adjustment bracket. Background Art

[0002] There are usually two ways to install speakers: floor-standing and suspended. To meet the sound requirements of academic lecture halls, hotel conference rooms, exhibition center halls, training centers, stages and other places, suspended speakers are generally used, which are convenient for adjusting the angle of the speakers to achieve the best sound effects. However, in the existing related technologies, the angle of the speakers is generally adjusted by bolt fixing, but the adjustment process requires frequent disassembly and debugging of the speakers, which is time-consuming and labor-intensive. Utility Model Content

[0003] In order to overcome the problems existing in the related art, the present application provides a speaker adjustment bracket, which can adjust the horizontal angle of the speaker by rotating the adjustment plate and flexibly adjust the tilt angle of the speaker through the first pin shaft to meet the debugging needs of different sound effects.

[0004] A first aspect of the present application provides a speaker adjustment bracket, comprising:

[0005] Mounting plate;

[0006] An adjusting plate, one end of which is rotatably connected to the mounting plate via a first rotating shaft, and the adjusting plate can swing perpendicular to the plane of the mounting plate;

[0007] A support portion, wherein the support portion is rotatably connected to the other end of the adjustment plate via a second rotating shaft, wherein an axis of the second rotating shaft is perpendicular to an axis of the first rotating shaft;

[0008] The adjustment plate is provided with a plurality of limiting holes arranged around the second rotating shaft, the support portion is provided with a pin hole matched with the plurality of limiting holes, the pin hole is penetrated by a first pin shaft, and the first pin shaft is accommodated in the limiting hole.

[0009] In a possible implementation of the first aspect, a plurality of coaxially arranged first sleeves are disposed on the mounting plate, the plurality of first sleeves are disposed along a length direction of the mounting plate, and an inner wall of the first sleeve is provided with an internal thread;

[0010] A second sleeve is disposed at one end of the adjustment plate, the second sleeve is disposed along the length direction of the adjustment plate, and the inner diameter of the second sleeve is greater than the outer diameter of the first rotating shaft;

[0011] The second sleeve is located between adjacent first sleeves, and the first rotating shaft is threadedly connected to the first sleeve, and the first rotating shaft is inserted into the second sleeve.

[0012] In a possible implementation of the first aspect above, the first rotating shaft includes a spherical joint and a rotating rod, the spherical joint is provided with an internal thread, one end of the rotating rod is provided with an external thread, the rotating rod is threadedly connected to the first sleeve and is inserted into the second sleeve.

[0013] In a possible implementation of the first aspect, the support portion includes a support plate and a support plate assembly, the support plate assembly is vertically disposed on the support plate, and a gap for accommodating the adjustment plate is formed on the support plate assembly;

[0014] The support plate assembly is provided with the pin hole and the shaft hole, and the second shaft is located in the shaft hole of the support plate assembly.

[0015] In a possible implementation of the first aspect, an opening groove is provided on a side of the adjustment plate away from the mounting plate, the opening groove is inclined along a width direction of the adjustment plate, and one end of the opening groove is away from the limiting hole;

[0016] One end of the adjustment plate away from the mounting plate is located in the gap, and the opening groove is engaged with the second rotating shaft.

[0017] In a possible implementation of the first aspect above, the support plate assembly includes two support plates arranged in parallel and symmetrically distributed, and both of the support plates are provided with the pin hole and the shaft hole; the pin holes and the shaft holes of the two support plates are respectively coaxial, and the axes of the pin holes and the axes of the shaft holes are perpendicular to the axis of the first shaft.

[0018] In a possible implementation of the first aspect, the second rotating shaft includes a second pin shaft, the second pin shaft is passed through the rotating shaft holes of the two support plates, and the clips of the second pin shaft are clamped on the opposite end surfaces of the two support plates.

[0019] In a possible implementation of the first aspect above, the support plate and the two support plates are an integrally formed structure.

[0020] In a possible implementation of the first aspect, the speaker adjustment bracket further includes a limit plate and a hexagon socket bolt, the limit plate is fixed to the top of the mounting plate through the first rotating shaft, and an arc-shaped strip hole is provided on the limit plate;

[0021] A protrusion is arranged at one end of the adjustment plate close to the limiting plate, and an internal thread groove is formed on the protrusion; the internal hexagon bolt is passed through the arc-shaped strip hole and is threadedly connected with the adjustment plate.

[0022] In a possible implementation of the first aspect above, the first pin shaft includes: a shaft body, a limit retaining spring, a locking structure and a hanging ring, the limit retaining spring is arranged at one end of the shaft body, the locking structure is arranged at an end away from the limit retaining spring, the locking structure is also connected to the hanging ring, and the hanging ring is fixed to the support plate by bolts.

[0023] The technical solution provided by this application may have the following beneficial effects:

[0024] The present application provides a speaker adjustment bracket, which mounts the speaker device on a support plate, and the mounting plate is mounted on a wall or other structure. When in use, the operator can conveniently adjust the angle position of the speaker device by rotating the adjustment plate, and the inclination angle of the adjustment plate can also be adjusted through the first pin shaft on the adjustment plate, without the need for bolt fixing, thereby effectively improving the debugging efficiency of the speaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0026] Figure 1 is a schematic diagram of the overall structure of the speaker adjustment bracket shown in Example 1 of the present application;

[0027] Figure 2 is another overall structural schematic diagram of the speaker adjustment bracket shown in Example 1 of the present application;

[0028] Figure 3 is a schematic diagram of the structure of the adjustment plate shown in Example 1 of the present application;

[0029] Figure 4 It is a structural schematic diagram of the adjustment plate and the mounting plate shown in Example 2 of the present application;

[0030] Figure 5 is a schematic structural diagram of a support portion shown in Example 2 of the present application;

[0031] Figure 6 is a schematic structural diagram of the second rotating shaft shown in Example 2 of the present application;

[0032] Figure 7 is a schematic structural diagram of a limit plate shown in Example 3 of the present application;

[0033] Figure 8 is a schematic structural diagram of the first pin shown in Example 3 of the present application;

[0034] Fig. 9 This is another structural schematic diagram of the first pin shaft shown in Example 3 of the present application.

[0035] Reference numerals:

[0036] 1. Mounting plate; 11. First sleeve;

[0037] 2. Adjustment plate; 21. Limiting hole; 22. Second sleeve; 23. Opening groove; 24. Protrusion;

[0038] 3. Support part; 31. Pin hole; 32. Support plate; 33. Support plate assembly; 330. Gap; 331. Support plate; 34. Rotating shaft hole;

[0039] 4. The first rotating shaft;

[0040] 5. second rotating shaft; 51. second pin shaft; 52. clip;

[0041] 6. first pin shaft; 61. shaft body; 62. limit spring; 63. locking structure; 64. hanging ring;

[0042] 7. Limiting plate; 71. Arc-shaped strip hole; 72. Hexagon socket bolt. DETAILED DESCRIPTION

[0043] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0044] At present, the debugging of the suspended speaker by bolt fixing requires frequent disassembly and assembly of the bracket, which is time-consuming and laborious. In view of the above problems, the embodiment of the present application provides a speaker adjustment bracket, which can adjust the angle of the speaker in the horizontal direction by rotating the adjustment plate 2 and flexibly adjust the tilt angle of the speaker through the cooperation between the second rotating shaft 5 and the first pin shaft 6 to meet the debugging needs of different sound effects.

[0045] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0046] Example 1

[0047] Figure 1 A schematic diagram of the overall structure of a speaker adjustment bracket provided in an embodiment of the present application.

[0048] See also Figures 1 to 5 , a speaker adjustment bracket provided in an embodiment of the present application includes:

[0049] Mounting plate 1;

[0050] An adjusting plate 2, one end of which is rotatably connected to the mounting plate 1 via a first rotating shaft 4, and the adjusting plate 2 can swing perpendicular to the plane of the mounting plate 1;

[0051] A support portion 3, wherein the support portion 3 is rotatably connected to the other end of the adjustment plate 2 via a second rotating shaft 5, and an axis of the second rotating shaft 5 is perpendicular to an axis of the first rotating shaft 4;

[0052] The adjustment plate 2 is provided with a plurality of limiting holes 21 arranged around the second rotating shaft 5, and the support portion 3 is provided with a pin hole 31 cooperating with the plurality of limiting holes 21 . The pin hole 31 is penetrated by a first pin shaft 6 , and the first pin shaft 6 is accommodated in the limiting hole 21 .

[0053] In the embodiment of the present application, the mounting plate 1 and the support part 3 can both be used to fix the speaker or wall structure. The embodiment of the present application takes the mounting plate 1 installed on a fixed support and the support part 3 as an example to install the audio equipment to explain the embodiment of the present application in detail.

[0054] When the speaker adjustment bracket is in use, the mounting plate 1 can be installed on a wall or other supporting objects, such as indoor supporting columns, furniture, and other objects that can play a supporting role, and the mounting plate 1 is vertically fixed on the support, and speakers and other equipment can be installed on the support part 3.

[0055] The speaker adjustment bracket in the embodiment of the present application includes a mounting plate 1, an adjustment plate 2, and a support portion 3, wherein the adjustment plate 2 is rotatably connected to the mounting plate 1 via a first rotating shaft 4. When the mounting plate 1 is fixed to a support, the adjustment plate 2 can rotate around the axis of the first rotating shaft 4 (i.e., swing perpendicular to the plane of the mounting plate 1), thereby driving the support portion 3 to rotate, thereby achieving horizontal angle adjustment of the speaker. When adjusting the tilt angle of the speaker, the support portion 3 can rotate around the axis of the second rotating shaft 5 by pulling out the first pin 6. When the support portion 3 is After the angle between the adjustment plates 2 reaches the required angle, the first pin 6 can be inserted into the pin hole 31 and the current limit hole 21, so that the angle between the adjustment plate 2 and the support part 3 can be locked at a specific angle, thereby completing the setting of the tilt angle. When the tilt angle of the adjustment plate 2 needs to be changed, it is only necessary to pull out the first pin 6, and align the limit hole 21 corresponding to the specific angle with the pin hole 31, and insert the first pin 6 into the pin hole 31. The adjustment of the tilt angle can be quickly completed without bolt fixing, and the debugging needs of the speaker can be quickly responded to.

[0056] Figure 2 Another overall structural schematic diagram of the speaker adjustment bracket provided in an embodiment of the present application.

[0057] The angle between the adjustment plate 2 and the support part 3 can be freely set according to actual conditions, and the distances between each limiting hole 21 and the second rotating shaft 5 can be equal or unequal, so that the pin hole 31 on the support part 3 can match each limiting hole 21, thereby meeting multiple angle fixation. The line between one of the limiting holes 21 and the second rotating shaft 5 is parallel to the side of the adjustment plate 2, so as to achieve Figure 2 The support portion 3 is shown to be parallel to the mounting plate 1. The closer the distance between the limiting hole 21 and the second rotation axis is, the greater the angle adjusted between adjacent limiting holes is.

[0058] Exemplarily, the angles between each limiting hole 21 and the second rotating shaft 5 may be 5°, 10°, 15°, 30°, 45°, 65°, 75°, etc.

[0059] In another feasible manner, an arc-shaped strip hole arranged in a ring around the second rotating shaft 5 can also be provided on the adjustment plate 2, the arc-shaped strip hole is penetrated by the first rotating shaft 4, and one end of the first rotating shaft 4 can be clamped and pressed on the end face of the support part 3. Under this setting, the angle range between the adjustment plate and the support part is 0° to 90°, preferably 30° to 90°, and more preferably 45° to 90°.

[0060] The speaker adjustment bracket provided in the present application can freely set the rotation range of the adjustment plate 2 around the axis of the first rotating shaft 4 according to actual conditions. Several structural settings of the mounting plate 1 and the adjustment plate 2 are introduced below.

[0061] Figure 1 and Figure 2 A rotational relationship between the adjustment plate 2 and the mounting plate 1 is shown. In this embodiment, the opposite sides of the mounting plate 1 and the adjustment plate 2 are both planes (that is, the adjustment plate 2 and the first support plate 32 can overlap with each other). When the adjustment plate 2 is rotated, an angle rotation of 0 to 180° can be achieved.

[0062] In another rotational relationship between the adjustment plate 2 and the mounting plate 1 (not shown in the figure), one side of the mounting plate 1 is arc-shaped, and one side of the adjustment plate 2 intersects with the arc surface of the mounting plate 1. When the adjustment plate 2 is rotated, the maximum rotation angle of the adjustment plate 2 can be greater than 180°.

[0063] In another rotational relationship between the adjustment plate 2 and the mounting plate 1 (not shown in the figure), one side of the mounting plate 1 is a conical surface, and the adjustment plate 2 is arranged at the cone angle. When the adjustment plate 2 is rotated, the adjustment plate 2 can overlap with the conical surface, so that the rotation angle of the adjustment plate 2 is 0-270°, thereby adapting to a wider angle adjustment requirement.

[0064] The speaker adjustment bracket in this embodiment realizes the horizontal rotation of the speaker by rotating the adjustment plate 2 to drive the support part 3 to rotate, and adjusts the inclination angle of the speaker through the second rotating shaft 5 and the first pin shaft 6. There is no need to disassemble and assemble the bracket too much, and the adjustment efficiency is high.

[0065] Example 2

[0066] In order to make the sound effect adjustment bracket described in Example 1 have a higher assembly efficiency, the embodiment of the present application also designs a corresponding structure. On the basis of the above-mentioned Example 1, a first sleeve 11 is set on the mounting plate 1 and a second sleeve 22 is set on the adjustment plate 2, and the purpose of rapid assembly is achieved by rotating the rod. Please refer to Figures 3 to 6 In the embodiment of the present application, a plurality of coaxially arranged first sleeves 11 are arranged on the mounting plate 1, and the plurality of first sleeves 11 are arranged along the length direction of the mounting plate 1, and an inner thread is arranged on the inner wall of the first sleeve 11;

[0067] A second sleeve 22 is disposed at one end of the adjustment plate 2. The second sleeve 22 is disposed along the length direction of the adjustment plate 2. The inner diameter of the second sleeve 22 is greater than the outer diameter of the first rotating shaft 4.

[0068] The second sleeve 22 is located between adjacent first sleeves 11, and the first shaft 4 is threadedly connected to the first sleeve 11, and the first shaft 4 is inserted into the second sleeve 22. Specifically, the first sleeve 11 may include a plurality of sleeve elements, and the second sleeve 22 is disposed between adjacent sleeve elements.

[0069] In this embodiment, the first rotating shaft 4 includes a spherical joint and a rotating rod, the spherical joint is provided with an internal thread, one end of the rotating rod is provided with an external thread, the rotating rod is threadedly connected with the first sleeve 11, and is inserted into the second sleeve 22. When assembling the adjustment plate 2 and the mounting plate 1, the rotating rod is installed on the spherical joint, and then the spherical structure is held, and the rotating rod is rotated to connect one end of the first sleeve 11 located at the top of the mounting plate 1, and then the rotating rod is connected to the first sleeve 11 located at the bottom of the mounting plate 1 after passing through the second sleeve 22, so that the adjustment plate 2 is sleeved on the rotating rod, which plays a role in fixing the adjustment plate 2.

[0070] In this embodiment, the support portion 3 includes a support plate 32 and a support plate assembly 33. The support plate assembly 33 is vertically arranged on the support plate 32. A gap 330 for accommodating the adjustment plate 2 is formed on the support plate assembly 33.

[0071] The support plate assembly 33 is provided with the pin hole 31 and the shaft hole 34, and the second shaft 5 is located in the shaft hole 34 of the support plate assembly 33. The gap 330 on the support plate assembly 33 can improve the firmness and stability of the adjustment plate 2.

[0072] In this embodiment, an opening slot 23 is provided on one side of the adjustment plate 2 away from the mounting plate 1, the opening slot 23 is inclined along the width direction of the adjustment plate 2, and one end of the opening slot 23 is away from the limiting hole 21;

[0073] The end of the adjustment plate 2 away from the mounting plate 1 is located in the gap 330, and the opening groove 23 is engaged with the second rotating shaft 5. The opening groove 23 provided on the adjustment plate 2 allows the adjustment plate 2 to be separated from the supporting portion 3 by only operating the adjustment plate 2 after the first rotating shaft 4 is pulled out, which is convenient and quick.

[0074] Specifically, the opening direction of the opening groove 23 is set at an end away from the first rotating shaft 4, so as to avoid the first rotating shaft 4 interfering with the clamping of the opening groove 23 and the second rotating shaft 5, thereby avoiding affecting the assembly efficiency.

[0075] In this embodiment, the support plate assembly 33 includes two support plates 331 arranged in parallel and symmetrically distributed, and both of the two support plates 331 are provided with the pin hole 31 and the shaft hole 34; the pin holes 31 and the shaft holes 34 of the two support plates 331 are coaxial, and the axes of the pin holes 31 and the axes of the shaft holes 34 are perpendicular to the axis of the first shaft 4.

[0076] In this embodiment, the second rotating shaft 5 includes a second pin shaft 51 , which is passed through the rotating shaft holes 34 of the two supporting plates 331 , and the clips 52 of the second pin shaft 51 are clipped on the opposite end surfaces of the two supporting plates 331 .

[0077] When in use, after the second pin shaft 51 passes through the rotation axis hole 34 of the support plate 331, the clip 52 on the second pin shaft 51 is engaged with the side surface of the support plate 331, thereby fixing the second pin shaft 51 on the support plate 331. When the adjustment plate 2 is accommodated between the two support plates 331, one end of the opening of the opening slot 23 enters the second pin shaft 51, and because the two sides of the opening slot 23 are arc-shaped structures, the opening slot 23 can engage the second pin shaft 51, so that the adjustment plate 2 can rotate around the axis of the second pin shaft 51, and together with the first pin shaft 6, the adjustment plate 2 is fixed in the gap 330 between the two support plates 331. When the inclination angle of the speaker needs to be adjusted, only the first pin shaft 6 needs to be operated, which is convenient and fast.

[0078] In this embodiment, the support plate 32 and the two support plates 331 are an integrally formed structure.

[0079] The support plate 32 and the support plate 331 are integrally formed plastic parts. This structure is suitable for high-strength assembly work. Recycled materials can be directly injection molded on an injection molding machine through a mold. The support plate 32 and the support plate 331 are produced in a fully automatic manner, which can realize the recycling of recycled plastics. Preferably, thermoplastic polymer materials with high strength, good toughness, and easy processing and forming are selected, such as ABS, PC, and PA.

[0080] Example 3

[0081] In practical applications, the adjustment plate 2 is prone to displacement. To avoid this, the present application embodiment also designs a corresponding structure. Figure 7 and Fig. 9 In the embodiment of the present application, the speaker adjustment bracket further includes a limit plate 7 and a hexagon socket bolt 72, wherein the limit plate 7 is fixed to the top of the mounting plate 1 through the first rotating shaft 4, and an arc-shaped strip hole 71 is provided on the limit plate 7;

[0082] A protrusion 24 is provided at one end of the adjustment plate 2 close to the limiting plate 7 , and the protrusion 24 is provided with an internal thread groove; the hexagon socket bolt 72 is passed through the arc-shaped strip hole 71 and is threadedly connected to the adjustment plate 2 .

[0083] Specifically, the rotating rod is first passed through the through hole in the limit plate 7, and then the rotating rod is tightened on the first sleeve 11 through the ball joint, so that the limit plate 7 is fixed to the top of the mounting plate 1. At the same time, the arc-shaped strip hole 71 on the limit plate 7 cooperates with the protrusion 24 in the adjustment plate 2. When the horizontal angle adjustment is completed, the hexagon socket bolt 72 is pressed into the arc-shaped strip hole 71 to fix the adjustment plate 2 to prevent displacement.

[0084] In this embodiment, the first pin shaft 6 includes a shaft body 61, a limit spring 62, a locking structure 63 and a hanging ring 64. The limit spring 62 is arranged at one end of the shaft body 61, and the locking structure 63 is arranged at an end away from the limit spring 62. The hanging ring 64 is also connected to the locking structure 63, and the hanging ring 64 is fixed to the support plate 32 by bolts.

[0085] Specifically, the shaft body 61 is passed through the pin hole 31 and the limiting hole 21, and the adjustment plate 2 and the support plate 331 are fixed together by the limiting clamp 62. When the tilt angle needs to be adjusted, the limiting clamp 62 is operated to rotate one end of the adjustment plate 2 around the axis of the first pin shaft 6, and the specific limiting hole 21 is aligned with the pin hole 31, and the shaft body 61 is inserted to complete the adjustment of the tilt angle. By setting it on the hanging ring 64, the loss of the first pin shaft 6 can be avoided.

[0086] A speaker adjustment bracket provided in an embodiment of the present application can avoid the problem of displacement of the speaker during use or debugging by setting a limit plate 7 to fix the rotation angle of the adjustment plate 2.

[0087] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A speaker adjustment bracket, characterized in that: include: Mounting plate; An adjusting plate, one end of which is rotatably connected to the mounting plate via a first rotating shaft, and the adjusting plate can swing perpendicular to the plane of the mounting plate; A support portion, the support portion being rotatably connected to the other end of the adjustment plate via a second rotating shaft, wherein an axis of the second rotating shaft is perpendicular to an axis of the first rotating shaft; The adjustment plate is provided with a plurality of limiting holes arranged around the second rotating shaft, the support portion is provided with a pin hole matched with the plurality of limiting holes, the pin hole is penetrated by a first pin shaft, and the first pin shaft is accommodated in the limiting hole.

2. The speaker adjustment bracket according to claim 1, characterized in that: The mounting plate is provided with a plurality of coaxially arranged first sleeves, the plurality of first sleeves are arranged along the length direction of the mounting plate, and the inner wall of the first sleeve is provided with an internal thread; A second sleeve is disposed at one end of the adjustment plate, the second sleeve is disposed along the length direction of the adjustment plate, and the inner diameter of the second sleeve is greater than the outer diameter of the first rotating shaft; The second sleeve is located between adjacent first sleeves, and the first rotating shaft is threadedly connected to the first sleeve, and the first rotating shaft is inserted into the second sleeve.

3. The speaker adjustment bracket according to claim 2, characterized in that: The first rotating shaft includes a spherical joint and a rotating rod. The spherical joint is provided with an internal thread. One end of the rotating rod is provided with an external thread. The rotating rod is threadably connected to the first sleeve and is inserted into the second sleeve.

4. The speaker adjustment bracket according to claim 1, characterized in that: The support portion includes a support plate and a support plate assembly, wherein the support plate assembly is vertically arranged on the support plate, and a gap for accommodating the adjustment plate is formed on the support plate assembly; The support plate assembly is provided with the pin hole and the shaft hole, and the second shaft is located in the shaft hole of the support plate assembly.

5. The speaker adjustment bracket according to claim 4, characterized in that: An open slot is provided on one side of the adjustment plate away from the mounting plate, the open slot is inclined along the width direction of the adjustment plate, and one end of the open slot is away from the limiting hole; One end of the adjustment plate away from the mounting plate is located in the gap, and the opening groove is engaged with the second rotating shaft.

6. The speaker adjustment bracket according to claim 5, characterized in that: The support plate assembly includes two support plates arranged in parallel and symmetrically distributed, and both of the support plates are provided with the pin hole and the shaft hole; the pin holes and the shaft holes of the two support plates are coaxial, and the axes of the pin holes and the shaft holes are perpendicular to the axis of the first shaft.

7. The speaker adjustment bracket according to claim 6, characterized in that: The second rotating shaft comprises a second pin shaft, the second pin shaft is penetrated through the rotating shaft holes of the two supporting plates, and the clips of the second pin shaft are clamped on the end surfaces of the two supporting plates which are opposite to each other.

8. The speaker adjustment bracket according to claim 7, characterized in that: The support plate and the two support plates are an integrally formed structure.

9. The speaker adjustment bracket according to claim 1, characterized in that: The speaker adjustment bracket further comprises a limit plate and a hexagon socket bolt, wherein the limit plate is fixed to the top of the mounting plate through the first rotating shaft, and an arc-shaped strip hole is arranged on the limit plate; A protrusion is arranged at one end of the adjustment plate close to the limiting plate, and an internal thread groove is formed on the protrusion; the internal hexagon bolt is passed through the arc-shaped strip hole and is threadedly connected with the adjustment plate.

10. The speaker adjustment bracket according to claim 4, characterized in that: The first pin shaft includes: a shaft body, a limit clamping spring, a locking structure and a hanging ring. The limit clamping spring is arranged at one end of the shaft body, the locking structure is arranged at an end away from the limit clamping spring, the hanging ring is also connected to the locking structure, and the hanging ring is fixed to the support plate by bolts.

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