Quick-connection connecting assembly and sound box

Abstract

The invention relates to the field of sound boxes, in particular to a quick-connection connecting assembly and a sound box. According to the quick-connection connecting assembly, through arrangement of a limiting column and a guide groove, a second connecting piece is guided, and through arrangement of an angle adjusting hole and an angle adjusting pin, a user can easily adjust the angle of the sound box; and the requirements of different application scenes are met. Through the arrangement of the positioning teeth, the elastic piece, the clamping jaw, the shifting rod and the unlocking groove, rapid locking and unlocking of the connecting assembly are achieved. The arrangement of the connecting assembly simplifies the installation steps, improves the working efficiency, and improves the flexibility and stability of the connection of the linear array sound box. The problems that an existing connecting assembly for the linear array sound box cannot be subjected to angle adjustment and is inconvenient to use are solved. Compared with an existing sound box, the sound box provided by the invention has the advantages that the connection operation between the sound boxes is convenient, and the relative angle between the sound boxes can be flexibly adjusted according to the specific requirements of a site.

Description

Technical Field

[0001] The present invention relates to the technical field of speakers, in particular to a connection component and a speaker with quick connection. Background Art

[0002] Line array speakers are widely used in large concerts, theaters, stadiums and other places due to their excellent sound coverage characteristics and high sound quality performance. To achieve the best sound effects, line array speakers usually need to be installed in a hanging or stacked manner and are ensured stable connection and precise angle adjustment between each speaker through specially designed connection components. These connection components not only bear a huge weight but also need to have a high degree of safety and flexibility to meet the requirements of different application scenarios.

[0003] Traditional installation methods of line array speakers mostly rely on fixed brackets or simple hook structures, which cannot perform angle adjustment and are inconvenient to use. Summary of the Invention

[0004] To solve the technical problems that the existing connection components for line array speakers cannot perform angle adjustment and are inconvenient to use.

[0005] The present invention provides a connection component with quick connection, including a first connecting piece, a second connecting piece, a third connecting piece, an elastic piece, angle adjustment holes, a positioning pin and an angle adjustment pin; the first connecting piece is provided with a limiting post, and the bottom end of the first connecting piece is provided with a first pin hole; the top end of the second connecting piece is provided with a connecting hole, one side of the second connecting piece is provided with positioning teeth, and a guiding groove is arranged along the length direction of the second connecting piece, and the limiting post is located in the guiding groove; the third connecting piece is fixedly connected with the first connecting piece, the third connecting piece is provided with an unlocking groove, and the bottom end of the third connecting piece is provided with a second pin hole corresponding to the position of the first pin hole; one end of the elastic piece is arranged on the first connecting piece, the other end of the elastic piece is provided with a claw, the claw is engaged with the positioning teeth, and a lever is arranged on one side of the claw and the lever is exposed outside the unlocking groove; there are twelve pairs of angle adjustment holes, and twelve angle adjustment holes are arranged on both the first connecting piece and the second connecting piece. The angle adjustment holes are divided into three columns, and the angles adjusted by adjacent angle adjustment holes in each column differ by at least 3°. The angle adjustment holes are distributed on both sides of the guiding groove; the positioning pin is used to connect the speaker; the angle adjustment pin is used to adjust the angle.

[0006] Preferably, there are three guiding grooves, namely a first guiding groove, a second guiding groove and a third guiding groove. The angle adjustment holes are divided into three columns. The first column is provided with four pairs of equally spaced angle adjustment holes, and the angle adjustment holes in the first column are located on both sides of the first guiding groove. The second column is provided with four pairs of equally spaced angle adjustment holes, and the angle adjustment holes in the second column are located on both sides of the second guiding groove. The third column is provided with four pairs of equally spaced angle adjustment holes, and the angle adjustment holes in the third column are located on both sides of the third guiding groove.

[0007] Preferably, when the connecting component is used to hang the sound box, the degrees of adjustment of the first column of angle adjustment holes are 0°, 3°, 6° and 9° respectively, the degrees of adjustment of the second column of angle adjustment holes are 1°, 4°, 7° and 10° respectively, the first angle adjustment hole in the third column is idle, and the degrees of adjustment of the angle adjustment holes in the third column are 2°, 5° and 8° respectively; when the connecting component is used to stack the sound boxes, the degrees of adjustment of the first column of angle adjustment holes are 1°, 4°, 7° and 10° respectively, the last angle adjustment hole in the second column is idle, the degrees of adjustment of the angle adjustment holes in the second column are 2°, 5° and 8° respectively, and the degrees of adjustment of the angle adjustment holes in the third column are 0°, 3°, 6° and 9° respectively.

[0008] Preferably, there are two limiting posts, which respectively pass through the second guiding groove and the third guiding groove. The third connecting piece is provided with limiting holes corresponding to the limiting posts. The center of the limiting post is provided with a thread, and the first connecting piece and the second connecting piece are connected through bolts passing through the limiting holes and the limiting posts.

[0009] Preferably, one side of the first connecting piece is provided with a first fixing hole, and one side of the third connecting piece is provided with a second fixing hole corresponding to the position of the first fixing hole. The first connecting piece and the third connecting piece are fixed by bolts passing through the first fixing hole and the second fixing hole.

[0010] Preferably, the first connecting piece, the second connecting piece and the third connecting piece are equal in length. The top of the second connecting piece is provided with a groove, and the top of the first connecting piece is provided with a notch, and the groove is exposed outside the notch.

[0011] Preferably, the elastic member is a spring.

[0012] Preferably, the first connecting piece, the second connecting piece and the third connecting piece are all made of metal.

[0013] The present invention also provides a sound box. The side of the sound box is provided with a third pin hole and a fourth pin hole. Using the above-mentioned quickly connectable connecting component, the positioning pin passes through the first pin hole, the second pin hole and the third pin hole, and the angle adjustment pin sequentially passes through the angle adjustment holes, the guiding grooves on the third connecting piece, the angle adjustment holes on the first connecting piece and the fourth pin hole.

[0014] Preferably, the top surface and the bottom surface of the sound box are both inclined, and the inclination angle is not less than 5°; or at least one of the top surface or the bottom surface of the sound box is inclined, and the inclination angle is not less than 10°.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: A quick-connect connection assembly is provided with twelve pairs of angle adjustment holes, and the angle difference between each row of adjacent angle adjustment holes is at least 3°, allowing the user to accurately adjust the relative angle between the speakers according to actual needs to ensure the best sound coverage effect. The limit column is located in the guide groove to ensure that the second connection piece can move along the predetermined path during installation to avoid offset or misalignment. The claw is engaged with the positioning tooth. When unlocking is required, the claw and the positioning tooth can be separated by gently toggling the lever, so that the connection assembly can be quickly locked or loosened without the use of tools, reducing the difficulty of disassembly and assembly and improving the convenience of use.

[0016] When connecting multiple speakers, a connecting assembly is provided on the side of each speaker. First, a positioning pin is used to pass through the second latch hole on the connecting assembly of the upper speaker, the connecting hole on the connecting assembly of the lower speaker, and the first latch hole on the connecting assembly of the upper speaker in sequence, and finally inserted into the upper speaker to connect the upper speaker and the lower speaker through two connecting assemblies; then the required degree is selected, and the angle adjustment pin is used to pass through the guide groove and the angle adjustment holes on both sides of the guide groove of the same speaker, and finally inserted into the corresponding speaker, and then the second connecting piece is lifted up. Because the angle adjustment holes are set on both sides of the guide groove, the second connecting piece cannot be lifted up after the required degree is raised. The claw is clamped into the positioning tooth under the action of the elastic member, so that the second connecting piece will not slide down. When the second connecting piece needs to be retracted, it is only necessary to toggle the lever to let the claw leave the positioning tooth. Through the setting of the limit column and the guide groove, the second connecting piece is guided. Through the setting of the angle adjustment hole and the angle adjustment pin, the user can easily adjust the angle of the speaker to meet the needs of different application scenarios. The fast locking and unlocking of the connection assembly is achieved by setting the positioning teeth, elastic parts, claws, levers and unlocking slots. The setting of the connection assembly simplifies the installation steps, improves the work efficiency, and improves the flexibility and stability of the connection of the linear array speaker. The problem that the existing connection assembly for the line array speaker cannot be adjusted in angle and is inconvenient to use is solved.

[0017] The speaker of the present invention uses the above-mentioned quick-connect connection component, which facilitates the connection operation between speakers compared to existing speakers, significantly improves installation efficiency, and can flexibly adjust the relative angle between speakers according to the specific needs of the site to optimize the sound field coverage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is one of the three-dimensional views of a quick-connect connection assembly provided by the present invention.

[0019] Figure 2 This is a second stereoscopic view of a quick-connect connection assembly provided by the present invention.

[0020] Figure 3The third perspective view of a quick-connecting component provided by the present invention (hiding the third connecting member).

[0021] Figure 4 The perspective view of a speaker provided by the present invention.

[0022] In the figure: 1 - the first connecting member; 11 - the limiting post; 12 - the first pin hole; 13 - the first fixing hole; 14 - the notch; 2 - the second connecting member; 21 - the connecting hole; 22 - the positioning tooth; 23 - the guiding groove; 231 - the first guiding groove; 232 - the second guiding groove; 233 - the third guiding groove; 24 - the groove; 3 - the third connecting member; 31 - the unlocking groove; 32 - the second pin hole; 33 - the limiting hole; 34 - the second fixing hole; 4 - the elastic member; 5 - the claw; 51 - the lever; 6 - the angle adjusting hole; 7 - the positioning pin; 8 - the angle adjusting pin; 9 - the speaker. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0024] In the description of the embodiments of the present invention, the terms "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, the features defined with "first", "second", "third", and "fourth" may explicitly or implicitly include one or more of such features.

[0025] Refer to Figures 1-4A quick-connect connection assembly comprises a first connection member 1, a second connection member 2, a third connection member 3, an elastic member 4, an angle adjustment hole 6, a positioning pin 7 and an angle adjustment pin 8; the first connection member 1 is provided with a limiting column 11, and the bottom end of the first connection member 1 is provided with a first pin hole 12; the top end of the second connection member 2 is provided with a connection hole 21, a side of the second connection member 2 is provided with a positioning tooth 22, and the second connection member 2 is provided with a guide groove 23 along its length direction, and the limiting column 11 is located in the guide groove 23; the third connection member 3 is fixedly connected to the first connection member 1, the third connection member 3 is provided with an unlocking groove 31, and the bottom end of the third connection member 3 is provided with a locking groove 31 for locking the third connection member 3 with the third connection member 3. A second latch hole 32 corresponds to the position of a latch hole 12; one end of the elastic member 4 is provided on the first connecting member 1, and the other end of the elastic member 4 is provided with a claw 5, the claw 5 is meshed with the positioning tooth 22, and a lever 51 is provided on one side of the claw 5, and the lever 51 is exposed from the unlocking groove 31; there are twelve pairs of angle adjustment holes 6, and twelve angle adjustment holes 6 are provided on the first connecting member 1 and the second connecting member. The angle adjustment holes 6 are divided into three columns, and the angle adjustment degrees of adjacent angle adjustment holes 6 in each column differ by at least 3°, and the angle adjustment holes 6 are distributed on both sides of the guide groove 23; the positioning pin 7 is used to connect the speaker 9; the angle adjustment pin 8 is used to adjust the angle.

[0026] When connecting multiple speakers 9, a connecting assembly is provided on the side of each speaker 9. First, the positioning pin 7 is passed through the second latch hole 32 on the connecting assembly of the upper speaker 9, the connecting hole 21 on the connecting assembly of the lower speaker 9, and the first latch hole 12 on the connecting assembly of the upper speaker 9 in sequence, and finally inserted into the upper speaker 9, so as to connect the upper speaker 9 and the lower speaker 9 through two connecting assemblies; then the required degree is selected, and the angle adjustment pin 8 is passed through the guide groove 23 and the angle adjustment holes 6 on both sides of the guide groove 23 of the same speaker 9, and finally inserted into the corresponding speaker 9, and then the second connecting member 2 is lifted up. Because the angle adjustment holes 6 are set on both sides of the guide groove 23, the second connecting member 2 cannot be lifted up after the required degree is reached. The claw 5 is clamped into the positioning tooth 22 under the action of the elastic member 4, so that the second connecting member 2 will not slide down. When the second connecting member 2 needs to be retracted, it is only necessary to toggle the lever 51 to let the claw 5 leave the positioning tooth 22. The setting of the limiting column 11 and the guide groove 23 plays a guiding role for the second connecting member 2. The setting of the angle adjustment hole 6 and the angle adjustment pin 8 allows the user to easily adjust the angle of the speaker 9 to meet the needs of different application scenarios. The setting of the positioning teeth 22, the elastic member 4, the claw 5, the lever 51 and the unlocking groove 31 realizes the rapid locking and unlocking of the connecting assembly. The setting of the connecting assembly simplifies the installation steps, improves the work efficiency, and improves the flexibility and stability of the connection of the linear array speaker 9. The problem that the existing connecting assembly for line array speakers cannot be adjusted in angle and is inconvenient to use is solved.

[0027] In some embodiments, referenceFigure 3 There are three guiding grooves 23, namely a first guiding groove 231, a second guiding groove 232 and a third guiding groove 233. The angle adjustment holes 6 are divided into three columns. The first column has four equally spaced angle adjustment holes 6, and the first column of angle adjustment holes 6 is located on both sides of the first guiding groove 231. The second column has four equally spaced angle adjustment holes 6, and the second column of angle adjustment holes 6 is located on both sides of the second guiding groove 232. The third column has four equally spaced angle adjustment holes 6, and the third column of angle adjustment holes 6 is located on both sides of the third guiding groove 233.

[0028] By providing three guiding grooves and three columns of angle adjustment holes 6, on the one hand, it allows users to adjust the angle of the speaker 9 at different positions to ensure the best sound coverage effect; on the other hand, it enables the connection component to adapt to speakers 9 of different models and brands and supports various combination methods of the speakers 9.

[0029] Preferably, referring to Figure 1 , when the connection component is used for hanging the sound system, the degrees of adjustment of the first column of angle adjustment holes 6 are 0°, 3°, 6° and 9° respectively. The degrees of adjustment of the second column of angle adjustment holes 6 are 1°, 4°, 7° and 10° respectively. The first angle adjustment hole 6 in the third column is idle, and the degrees of adjustment of the third column of angle adjustment holes 6 are 2°, 5° and 8° respectively; when the connection component is used for stacking the sound systems, the degrees of adjustment of the first column of angle adjustment holes 6 are 1°, 4°, 7° and 10° respectively. The last angle adjustment hole 6 in the second column is idle, and the degrees of adjustment of the second column of angle adjustment holes 6 are 2°, 5° and 8° respectively. The degrees of adjustment of the third column of angle adjustment holes 6 are 0°, 3°, 6° and 9° respectively.

[0030] By optimizing the angle adjustment holes 6 for two different installation scenarios of hanging and stacking, the flexibility of using the connection component is improved. It enables each speaker 9 to achieve continuous adjustment from 0° to 10° in the vertical direction; except for the first angle adjustment hole 6 in the third column when the connection component is used for stacking the speakers 9, the angle adjustment holes 6 in each of the other columns differ by 3°, ensuring fine and uniform angle control; it realizes precise adjustment of the angle of each speaker 9 to cover the entire audience area and avoid sound dead spots.

[0031] Preferably, referring to Figure 3 , there are two limiting posts 11, which respectively pass through the second guiding groove 232 and the third guiding groove 233. The third connecting member 3 is provided with limiting holes 33 corresponding to the limiting posts 11. The center of the limiting post 11 has a thread, and the first connecting member 1 and the second connecting member 2 are connected by a bolt passing through the limiting hole 33 and the limiting post 11.

[0032] The two limiting posts 11 are respectively inserted into the second guide groove 232 and the third guide groove 233 to ensure that the second connecting member 2 moves along a predetermined path to avoid displacement or misalignment. The combined design of the limiting posts 11, the limiting holes 33 and the bolts enables the limiting posts 11 to be accurately inserted into the limiting holes 33 and fixed by the bolts, thereby enhancing the stability of the connection between the first connecting member 1 and the third connecting member 3.

[0033] In some embodiments, reference Figure 2 A first fixing hole 13 is provided on one side of the first connecting member 1, and a second fixing hole 34 corresponding to the position of the first fixing hole 13 is provided on one side of the third connecting member 3. The first fixing hole 13 and the second fixing hole 34 are penetrated by bolts to fix the first connecting member 1 and the third connecting member 3.

[0034] The first fixing hole 13 is aligned with the second fixing hole 34 to ensure accurate docking between the first connecting member 1 and the third connecting member 3; and the stability of the connection between the first connecting member 1 and the third connecting member 3 is enhanced by bolt tightening.

[0035] In some embodiments, reference Figure 2 and Figure 3 The first connecting member 1 , the second connecting member 2 and the third connecting member 3 are of equal length, a groove 24 is provided on the top of the second connecting member 2 , a notch 14 is provided on the top of the first connecting member 1 , and the groove 24 is exposed in the notch 14 .

[0036] The first connector 1, the second connector 2 and the third connector 3 are of equal length, ensuring that the second connector 2 can be stored between the first connector 1 and the third connector 3 when the connection assembly is not in use, which not only reduces the occupied space but also prevents the second connector 2 from being damaged. The groove 24 is exposed at the notch 14, and the groove 24 increases the contact area of ​​the second connector 2, so that when the user uses it, the groove 24 is moved from the notch 14, thereby pulling the second connector 2 out from between the first connector 1 and the third connector 3.

[0037] In some embodiments, reference Figure 3 , the elastic member 4 is a spring.

[0038] The elastic property of the spring enables it to return to its original state after an external force is applied. When the lever 51 is moved, the claw 5 drives the spring to tilt. After the lever 51 is released, the spring drives the claw 5 to return to its original state, so that the claw 5 and the positioning tooth 22 are engaged. When the second connecting member 2 has a tendency to slide down, the second connecting member 2 compresses the spring. Under the action of the spring elastic force, the claw 5 resists the second connecting member 2 to prevent the second connecting member 2 from sliding down.

[0039] In some embodiments, the first connecting member 1 , the second connecting member 2 , and the third connecting member 3 are all made of metal.

[0040] In the description of the embodiments of the present invention, specific materials may be combined in a suitable manner in any one or more embodiments or examples.

[0041] Metal materials have high strength and rigidity, and can withstand greater mechanical stress, ensuring that the connection components will not deform or break when hanging or stacking speakers, enhancing the stability and safety of the overall structure. In addition, metal materials allow for standardized designs and specifications, facilitating mass production and maintenance, and reducing costs.

[0042] A speaker 9, referring to Figure 4 A third latch hole and a fourth latch hole are provided on the side of the speaker 9. Using the above-mentioned quick-connect connection assembly, the positioning pin 7 passes through the first latch hole 12, the second latch hole 32 and the third latch hole, and the angle adjustment pin 8 passes through the angle adjustment hole 6 on the third connecting member 3, the guide groove 23, the angle adjustment hole 6 on the first connecting member 1 and the fourth latch hole in sequence.

[0043] Specifically, the positioning pin 7 passes through the second latch hole 32 on the connecting assembly of the upper speaker 9, the connecting hole 21 on the connecting assembly of the lower speaker 9, and the first latch hole 12 on the connecting assembly of the upper speaker 9 in sequence, and is finally inserted into the upper speaker 9 to connect the upper speaker 9 and the lower speaker 9 through the two connecting assemblies; then the required degree is selected, and the angle adjustment pin 8 passes through the angle adjustment hole 6 on the third connecting member 3 of the same speaker 9, the guide groove 23, and the angle adjustment hole 6 on the first connecting member 1, and is finally inserted into the fourth latch hole. By setting the third latch hole and the fourth latch hole, a firm connection between the connecting assembly and the speaker 9 is ensured.

[0044] In some embodiments, reference Figure 4 , the top and bottom surfaces of the speaker 9 are both inclined, and the inclination angle is not less than 5°; or at least one of the top or bottom surfaces of the speaker 9 is inclined, and the inclination angle is not less than 10°.

[0045] This arrangement makes the speakers 9 more flexible when hanging or stacking, and the angle can be adjusted according to actual needs, avoiding the bottom surface of the upper speaker 9 and the top surface of the lower speaker 9 from interfering with each other when the speakers 9 are installed at an angle, ensuring that there is enough gap between the upper and lower speakers 9 to achieve a smooth tilt connection.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-connect connection assembly, characterized in that: include: A first connecting member, provided with a limiting column, and a first latch hole at the bottom end; The second connecting member has a connecting hole at the top, a positioning tooth at one side, a guide groove along its length, and a limiting column located in the guide groove; A third connecting member is fixedly connected to the first connecting member, is provided with an unlocking groove, and has a second latch hole at the bottom thereof corresponding to the position of the first latch hole; An elastic member, one end of which is arranged on the first connecting member, and the other end of which is provided with a claw, the claw is engaged with the positioning tooth, and one side of the claw is provided with a lever, and the lever is exposed in the unlocking groove; There are twelve pairs of angle adjustment holes, and the first connecting member and the second connecting member are each provided with twelve angle adjustment holes. The angle adjustment holes are divided into three rows, and the angle adjustment degrees of adjacent angle adjustment holes in each row differ by at least 3°. The angle adjustment holes are distributed on both sides of the guide groove; Dowel pins for connecting to the speaker; Angle adjustment pin, used to adjust the angle.

2. A quick-connect connection assembly according to claim 1, characterized in that: There are three guide grooves, namely the first guide groove, the second guide groove and the third guide groove. The angle adjustment holes are divided into three columns. The first column is provided with four pairs of angle adjustment holes distributed at equal intervals, and the angle adjustment holes in the first column are located on both sides of the first guide groove. The second column is provided with four pairs of angle adjustment holes distributed at equal intervals, and the angle adjustment holes in the second column are located on both sides of the second guide groove. The third column is provided with four pairs of angle adjustment holes distributed at equal intervals, and the angle adjustment holes in the third column are located on both sides of the third guide groove.

3. A quick-connect connection assembly according to claim 2, characterized in that: When the connecting component is used to hang speakers, the adjustment degrees of the angle adjustment holes in the first column are 0°, 3°, 6° and 9° respectively, the adjustment degrees of the angle adjustment holes in the second column are 1°, 4°, 7° and 10° respectively, the first angle adjustment hole in the third column is idle, and the adjustment degrees of the angle adjustment holes in the third column are 2°, 5° and 8° respectively; when the connecting component is used to stack speakers, the adjustment degrees of the angle adjustment holes in the first column are 1°, 4°, 7° and 10° respectively, the last angle adjustment hole in the second column is idle, the adjustment degrees of the angle adjustment holes in the second column are 2°, 5° and 8° respectively, and the adjustment degrees of the angle adjustment holes in the third column are 0°, 3°, 6° and 9° respectively.

4. A quick-connect connection assembly according to claim 2, characterized in that: The limiting column is provided with two, and the second guide groove and the third guide groove are respectively penetrated. The third connecting member is provided with a limiting hole corresponding to the limiting column. The center of the limiting column is provided with a thread. The first connecting member and the second connecting member are connected by bolts penetrating the limiting hole and the limiting column.

5. A quick-connect connection assembly according to claim 1, characterized in that: A first fixing hole is provided on one side of the first connecting member, and a second fixing hole corresponding to the position of the first fixing hole is provided on one side of the third connecting member. Bolts are passed through the first fixing hole and the second fixing hole to fix the first connecting member and the third connecting member.

6. A quick-connect connection assembly according to claim 1, characterized in that: The first connecting member, the second connecting member and the third connecting member have the same lengths. The second connecting member has a groove on its top and the first connecting member has a notch on its top. The groove is exposed outside the notch.

7. A quick-connect connection assembly according to claim 1, characterized in that: The elastic member is a spring.

8. A quick-connect connection assembly according to claim 1, characterized in that: The first connecting member, the second connecting member and the third connecting member are all made of metal.

9. A sound box, characterized in that: A third latch hole and a fourth latch hole are provided on the side of the speaker, and a quick-connect connection assembly as described in any one of claims 1 to 8 is used, the positioning pin passes through the first latch hole, the second latch hole and the third latch hole, and the angle adjustment pin passes through the angle adjustment hole on the third connecting piece, the guide groove, the angle adjustment hole on the first connecting piece and the fourth latch hole in sequence.

10. A sound box according to claim 9, characterized in that: The top and bottom surfaces of the speaker are both tilted, and the tilt angle is not less than 5°; or at least one of the top or bottom surfaces of the speaker is tilted, and the tilt angle is not less than 10°.

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