Mounting assembly and ceiling speaker

CN224790740UActive Publication Date: 2026-09-22广州市迪士普音响科技有限公司
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Patent Information

Application Number
CN202522199492.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-17
Publication Date
2026-09-22
Estimated Expiration
2035-10-17

AI Technical Summary

Technical Problem

但是,这种安装方式的锁止效果不理想,导致吊顶音箱在使用的过程中会发生移动,不仅会影响音质效果,而且存在掉落的风险,另外,这种安装方式需要加工两种不同的支架,增加了配件的加工成本

Benefits of technology

[0007]根据本申请实施例的安装组件,至少具有如下有益效果:使用时,其中一个安装支架用于固定于音箱主体的顶部,另一个安装支架用于固定于天花板,其中,两个安装支架的朝向不同,固定于天花板的安装支架的第一折边和第二折边处于向下弯折的状态,固定于音箱主体的顶部的安装支架的第一折边和第二折边处于向上弯折的状态。安装吊顶音箱时,首先移动音箱主体,以使固定于音箱主体的顶部的安装支架沿第二方向位于固定于天花板的安装支架的一侧,且其中一个安装支架的第一折边对应另一个安装支架的第二折边,随后沿第二方向移动音箱主体,以使固定于音箱主体顶部的安装支架的第一折边或者第二折边,沿第二方向插入固定于天花板的安装支架的第一折边与第二折边之间,随后沿第一方向移动音箱主体,以使固定于音箱主体顶部的安装支架的插接部插入固定于天花板的安装支架的第一插接孔内,固定于音箱主体顶部的安装支架的插接部插入固定于天花板的安装支架的第一插接孔内时,固定于天花板的安装支架的插接部同样也插入固定于音箱主体顶部的安装支架的第一插接孔内,此时插接部与相应的第一插接孔相配合以悬挂音箱主体,最后通过锁定结构限制插入第一插接孔内的插接部脱离第一插接孔即可。相比于传统的安装结构,本申请采用两个结构相同的安装支架安装吊顶音箱,无需加工不同的支架结构,从而有利于降低配件的加工成本。

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Abstract

The application discloses a mounting assembly and a ceiling sound box, and relates to the technical field of mounting assemblies, which is used for mounting the ceiling sound box and comprises two mounting supports, a base plate, a first folding edge provided on one side of the base plate along a first direction, a second folding edge provided on the other side of the base plate, the folding directions of the first folding edge and the second folding edge being the same, a first plug-in hole penetrating through the first folding edge and provided on the first folding edge, a plug-in part provided on the second folding edge and corresponding to the first plug-in hole, the first folding edge or the second folding edge of one of the mounting supports being used for being inserted between the first folding edge and the second folding edge of the other mounting support along a second direction, and the plug-in part of one of the mounting supports being used for being inserted into the first plug-in hole of the other mounting support along the first direction; and a locking structure used for limiting the plug-in part inserted into the first plug-in hole from leaving the first plug-in hole. The mounting assembly adopts two mounting supports with the same structure to mount the ceiling sound box, and different support structures are not needed to be processed, so that the machining cost of accessories is reduced.
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Description

Technical Field

[0001] This application relates to the field of speaker technology, and in particular to an installation component and a ceiling speaker. Background Technology

[0002] Ceiling speakers, as a type of audio equipment installed on indoor ceilings, are widely used in classrooms, offices, shopping malls, and other settings due to their space-saving features and ability to provide listeners with evenly distributed sound.

[0003] In related technologies, ceiling speakers are typically mounted on the ceiling using brackets and screws. During installation, the speaker needs to be manually held to align the screw holes, a cumbersome and time-consuming process. To address this, a method using two sliding brackets has been proposed. Specifically, one bracket is fixed to the ceiling, and the other to the top of the speaker. During installation, the top bracket of the speaker is aligned horizontally with the ceiling bracket, and then the speaker is moved to allow the two brackets to slide horizontally relative to each other. However, this method has an unsatisfactory locking effect, allowing the speaker to move during use. This not only affects sound quality but also poses a risk of falling. Furthermore, this method requires the fabrication of two different brackets, increasing the cost of manufacturing the components. Utility Model Content

[0004] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a mounting assembly for mounting ceiling speakers and which helps to reduce the processing cost of accessories.

[0005] This application also proposes a ceiling speaker having the above-described mounting components.

[0006] A mounting assembly according to a first aspect embodiment of the present application is used for mounting a ceiling speaker, the mounting assembly comprising: Two mounting brackets include a base plate. The base plate has a first folded edge on one side along a first direction and a second folded edge on the other side along the first direction. The first folded edge and the second folded edge have the same bending direction. The first folded edge has a first insertion hole that penetrates through the first folded edge. The second folded edge has an insertion part corresponding to the first insertion hole. The first folded edge or the second folded edge of one mounting bracket is used to be inserted between the first folded edge and the second folded edge of the other mounting bracket along a second direction. The insertion part of one mounting bracket is used to be inserted into the first insertion hole of the other mounting bracket along the first direction. A locking structure is provided to prevent the plug portion inserted into the first plug hole from disengaging from the first plug hole.

[0007] The mounting assembly according to the embodiments of this application has at least the following beneficial effects: In use, one mounting bracket is used to fix to the top of the speaker body, and the other mounting bracket is used to fix to the ceiling. The two mounting brackets are oriented differently. The first and second folded edges of the mounting bracket fixed to the ceiling are bent downwards, while the first and second folded edges of the mounting bracket fixed to the top of the speaker body are bent upwards. When installing a ceiling speaker, first move the speaker body so that the mounting bracket fixed to the top of the speaker body is positioned along the second direction on one side of the mounting bracket fixed to the ceiling, with the first fold of one mounting bracket corresponding to the second fold of the other mounting bracket. Then, move the speaker body along the second direction so that the first or second fold of the mounting bracket fixed to the top of the speaker body is inserted between the first and second folds of the mounting bracket fixed to the ceiling. Next, move the speaker body along the first direction so that the connector of the mounting bracket fixed to the top of the speaker body is inserted into the first connector hole of the mounting bracket fixed to the ceiling. When the connector of the mounting bracket fixed to the top of the speaker body is inserted into the first connector hole of the mounting bracket fixed to the ceiling, the connector of the mounting bracket fixed to the ceiling is also inserted into the first connector hole of the mounting bracket fixed to the top of the speaker body. At this time, the connector and the corresponding first connector hole cooperate to suspend the speaker body. Finally, the locking structure prevents the connector inserted into the first connector hole from disengaging from the first connector hole. Compared to traditional installation structures, this application uses two identical mounting brackets to install the ceiling speaker, eliminating the need to process different bracket structures, which helps reduce the processing cost of accessories.

[0008] According to some embodiments of this application, the locking structure includes a limiting portion disposed at the end of the plug portion, the diameter of the limiting portion being larger than the diameter of the plug portion and smaller than the diameter of the first plug hole, the limiting portion being used to restrict the plug portion inserted into the first plug hole from disengaging from the first plug hole in the first direction.

[0009] According to some embodiments of this application, the plug portion is configured as the shank of a first screw, the head of the first screw forms the limiting portion, the second flange is provided with a first threaded hole corresponding to the first screw, and the first screw is threadedly connected to the first threaded hole.

[0010] According to some embodiments of this application, the first folded edge is provided with two second insertion holes that penetrate the first folded edge and are used for inserting the insertion part. The diameter of the limiting part is smaller than the diameter of the second insertion hole. The limiting part can restrict the insertion part inserted into the second insertion hole from disengaging from the second insertion hole along the first direction. The two second insertion holes are spaced apart along the second direction and communicate with the first insertion hole, so that the insertion part inserted into the second insertion hole can move along the second direction to the corresponding first insertion hole. The two second insertion holes are symmetrically arranged along the second direction with respect to the center line of the first insertion hole.

[0011] According to some embodiments of this application, the wall of the second insertion hole is arc-shaped.

[0012] According to some embodiments of this application, the substrate is provided with a third folded edge on one side along the second direction. There are clearance openings between the third folded edge and the first folded edge, and between the third folded edge and the second folded edge. When the insertion part of one of the mounting brackets is aligned with the first insertion hole of the other mounting bracket, the third folded edges of the two mounting brackets can abut against each other.

[0013] According to some embodiments of this application, the locking structure includes a second screw, and the third folded edge is provided with a mounting through hole and a second threaded hole. The mounting through hole and the second threaded hole are spaced apart along the first direction. The diameter of the mounting through hole is larger than the diameter of the second threaded hole, and the diameter of the mounting through hole is smaller than the diameter of the head of the second screw. When the insertion part is inserted into the first insertion hole and the first folded edge of one of the mounting brackets abuts against the second folded edge of the other mounting bracket, the orthographic projection of the second threaded hole of one of the mounting brackets along the second direction completely falls within the orthographic projection of the mounting through hole of the other mounting bracket along the second direction.

[0014] According to some embodiments of this application, the substrate is provided with wiring holes for routing circuits.

[0015] According to some embodiments of this application, the substrate is provided with screw holes for inserting screws.

[0016] A ceiling speaker according to a second aspect of this application includes a speaker body and a mounting assembly according to the first aspect of this application, wherein one mounting bracket is used to fix the speaker body to the top and the other mounting bracket is used to fix the speaker body to the ceiling.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is an exploded view of the installation components according to an embodiment of this application; Figure 2 yes Figure 1 A schematic diagram of the structure shown from another perspective; Figure 3 This is a schematic diagram of the installation components from a disassembled state to an assembled state according to an embodiment of this application; Figure 4 This is a schematic diagram illustrating the installation principle of a ceiling-mounted speaker according to an embodiment of this application.

[0019] Figure label: Ceiling a; Mounting bracket 100, base plate 110, wiring hole 111, screw hole 112, first folded edge 120, first insertion hole 121, second insertion hole 122, second folded edge 130, insertion part 131, limiting part 132, third folded edge 140, mounting through hole 141, second threaded hole 142, clearance opening 150; Second screw 200; Speaker body 300. Detailed Implementation

[0020] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0021] In the description of this application, it should be understood that if directional descriptions are involved, such as up, down, front, back, left, right, etc., indicating the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings, it is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0022] In the description of this application, if words such as several, greater than, less than, exceeding, above, below, or within appear, "several" means one or more, "more than" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the number itself, and "above," "below," "within," etc. are understood to include the number itself.

[0023] In the description of this application, the use of terms such as "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0024] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0025] Reference Figures 1 to 4 An installation assembly according to an embodiment of this application is used to install a ceiling speaker. The installation assembly includes a mounting bracket 100 and a locking structure.

[0026] Specifically, there are two mounting brackets 100. Each mounting bracket 100 includes a base plate 110. A first folded edge 120 is provided on one side of the base plate 110 along the first direction, and a second folded edge 130 is provided on the other side of the base plate 110 along the first direction. The bending directions of the first folded edge 120 and the second folded edge 130 are the same, meaning that the orthographic projections of the first folded edge 120 and the second folded edge 130 along the first direction at least partially overlap. A first insertion hole 121 penetrating the first folded edge 120 is provided on the first folded edge 120, and the second folded edge 130... A plug-in portion 131 is provided on the first plug-in hole 121 on the 0. The first folded edge 120 or the second folded edge 130 of one mounting bracket 100 is used to be inserted between the first folded edge 120 and the second folded edge 130 of another mounting bracket 100 along the second direction. The plug-in portion 131 of one mounting bracket 100 is used to be inserted into the first plug-in hole 121 of another mounting bracket 100 along the first direction. The locking structure is used to prevent the plug-in portion 131 inserted into the first plug-in hole 121 from disengaging from the first plug-in hole 121.

[0027] In use, one mounting bracket 100 is used to fix to the top of the speaker body 300, and the other mounting bracket 100 is used to fix to the ceiling a. The two mounting brackets 100 are oriented differently. The first folded edge 120 and the second folded edge 130 of the mounting bracket 100 fixed to the ceiling a are bent downwards, while the first folded edge 120 and the second folded edge 130 of the mounting bracket 100 fixed to the top of the speaker body 300 are bent upwards.

[0028] When installing the ceiling speaker, first move the speaker body 300 so that the mounting bracket 100 fixed to the top of the speaker body 300 is positioned along the second direction on one side of the mounting bracket 100 fixed to the ceiling a, with the first folded edge 120 of one mounting bracket 100 corresponding to the second folded edge 130 of the other mounting bracket 100. Then move the speaker body 300 along the second direction so that the first folded edge 120 or the second folded edge 130 of the mounting bracket 100 fixed to the top of the speaker body 300 is inserted along the second direction between the first folded edge 120 and the second folded edge 130 of the mounting bracket 100 fixed to the ceiling a. Then move the speaker body 300 along the first direction so that the mounting bracket 100 fixed to the top of the speaker body 300 is positioned along the second direction between the first folded edge 120 and the second folded edge 130 of the mounting bracket 100 fixed to the ceiling a. The insertion part 131 of the mounting bracket 100 at the top of the speaker body 300 is inserted into the first insertion hole 121 of the mounting bracket 100 fixed to the ceiling a. When the insertion part 131 of the mounting bracket 100 fixed to the top of the speaker body 300 is inserted into the first insertion hole 121 of the mounting bracket 100 fixed to the ceiling a, the insertion part 131 of the mounting bracket 100 fixed to the ceiling a is also inserted into the first insertion hole 121 of the mounting bracket 100 fixed to the top of the speaker body 300. At this time, the insertion part 131 cooperates with the corresponding first insertion hole 121 to suspend the speaker body 300. Finally, a locking structure prevents the insertion part 131 inserted into the first insertion hole 121 from disengaging from the first insertion hole 121. Compared with traditional installation structures, this application uses two identical mounting brackets 100 to install the ceiling speaker, eliminating the need to process different bracket structures, thus reducing the processing cost of accessories.

[0029] Specifically, the first direction is perpendicular to the second direction.

[0030] Specifically, the portion of the plug-in part 131 used for inserting into the first plug-in hole 121 extends outward from the first folded edge 120. Of course, the portion of the plug-in part 131 used for inserting into the first plug-in hole 121 can also extend inward from the first folded edge 120.

[0031] It should be noted that the first direction is the X direction in the attached diagram, and the second direction is the Y direction in the attached diagram.

[0032] In some of these embodiments, the first direction is the width direction of the substrate 110, and the second direction is the length direction of the substrate 110.

[0033] It should be noted that in some other embodiments, the first direction is the length direction of the substrate 110, and the second direction is the width direction of the substrate 110.

[0034] Reference Figures 1 to 3In some embodiments, the locking structure includes a limiting portion 132 disposed at the end of the plug-in portion 131. The diameter of the limiting portion 132 is larger than the diameter of the plug-in portion 131, and the diameter of the limiting portion 132 is smaller than the diameter of the first plug-in hole 121, so that the limiting portion 132 can pass through the first plug-in hole 121 in a first direction. The limiting portion 132 is used to restrict the plug-in portion 131 inserted into the first plug-in hole 121 from disengaging from the first plug-in hole 121 in the first direction. After the ceiling speaker is installed, under the gravity of the speaker body 300, the plug-in portion 131 inserted into the first plug-in hole 121 will abut against the hole wall of the first plug-in hole 121. At this time, at least a portion of the limiting portion 132 overlaps with the solid portion of the corresponding first folded edge 120, thereby restricting the plug-in portion 131 inserted into the first plug-in hole 121 from disengaging from the first plug-in hole 121 in the first direction.

[0035] Reference Figures 1 to 3 In some embodiments, the plug portion 131 is configured as the shank of a first screw, the head of the first screw forms a limiting portion 132, and the second flange 130 is provided with a first threaded hole corresponding to the first screw, the first screw being threaded into the first threaded hole. After the plug portion 131 inserted into the first plug hole 121 abuts against the wall of the first plug hole 121 under the gravity of the speaker body 300, the first screw is tightened, so that the corresponding first flange 120 is clamped between the head of the first screw and the corresponding second flange 130, thereby restricting the plug portion 131 inserted into the first plug hole 121 from moving upward in the vertical direction, which helps to further prevent the plug portion 131 inserted into the first plug hole 121 from dislodging from the first plug hole 121. The vertical direction is the Z direction in the figures.

[0036] Specifically, the head of the first screw is located on the outside of the second fold 130 to facilitate tightening the first screw during the installation or removal of the ceiling speaker.

[0037] Reference Figures 1 to 3In some embodiments, the first folded edge 120 is provided with two second insertion holes 122 that penetrate the first folded edge 120 and are used for inserting the insertion part 131. The diameter of the limiting part 132 is smaller than the diameter of the second insertion hole 122, so that the limiting part 132 can pass through the second insertion hole 122 in the first direction. The limiting part 132 can restrict the insertion part 131 inserted into the second insertion hole 122 from leaving the second insertion hole 122 in the first direction. The two second insertion holes 122 are spaced apart in the second direction and communicate with the first insertion hole 121, so that the insertion part 131 inserted into the second insertion hole 122 can move in the second direction to the corresponding first insertion hole 121. The two second insertion holes 122 are symmetrically arranged in the second direction with respect to the center line of the first insertion hole 121. When installing the ceiling speaker, the connector 131 can be inserted into the corresponding second connector hole 122. At this time, the installer can temporarily release the connector, so that the connector 131 inserted into the second connector hole 122 abuts against the hole wall of the second connector hole 122 under the gravity of the speaker body 300. At this time, at least a part of the limiting part 132 overlaps with the solid part of the corresponding first folded edge 120, thereby preventing the connector 131 inserted into the second connector hole 122 from disengaging from the second connector hole 122 in the first direction. In other words, the speaker body 300 can be temporarily suspended by the cooperation of the connector 131 and the corresponding second connector hole 122, so that the installer does not need to support the speaker body 300 throughout the process, which helps to reduce the difficulty of installation. Then, the installer pushes the temporarily suspended speaker body 300 to continue to move in the first direction, so that the connector 131 can be moved into the first connector hole 121.

[0038] Specifically, the width of the channel connecting the first insertion hole 121 and the second insertion hole 122 is greater than the diameter of the insertion part 131, so that the insertion part 131 inserted into the second insertion hole 122 can move along the second direction into the corresponding first insertion hole 121.

[0039] In some embodiments, the wall of the second insertion hole 122 is arc-shaped. During the process of pushing the insertion part 131 inserted into the second insertion hole 122 into the corresponding first insertion hole 121, the arc-shaped wall of the second insertion hole 122 can act as a guide to facilitate pushing the insertion part 131 inserted into the second insertion hole 122 into the corresponding first insertion hole 121.

[0040] Reference Figures 1 to 3In some embodiments, the substrate 110 is provided with a third folded edge 140 on one side along the second direction. There are clearance openings 150 between the third folded edge 140 and the first folded edge 120 and between the third folded edge 140 and the second folded edge 130, so that the first folded edge 120 or the second folded edge 130 of one mounting bracket 100 can be inserted into the first folded edge 120 and the second folded edge 130 of another mounting bracket 100 along the second direction. When the insertion part 131 of one mounting bracket 100 is aligned with the first insertion hole 121 of another mounting bracket 100, the third folded edges 140 of the two mounting brackets 100 can abut against each other. On the one hand, this can indicate the installation direction, that is, the installation direction in which the third folded edges 140 of the two mounting brackets 100 abut against each other is the correct installation direction. On the other hand, it can play a positioning role to ensure that the insertion part 131 is inserted into the corresponding first insertion hole 121.

[0041] Specifically, the bending direction of the third fold 140 is the same as the bending direction of the first fold 120 (either both bend upwards or both bend downwards).

[0042] Reference Figures 1 to 3 In some embodiments, the locking structure includes a second screw 200, and a mounting through hole 141 and a second threaded hole 142 are provided on the third folded edge 140. The mounting through hole 141 and the second threaded hole 142 are spaced apart along a first direction. The diameter of the mounting through hole 141 is larger than the diameter of the second threaded hole 142. The diameter of the mounting through hole 141 is smaller than the diameter of the head of the second screw 200. When the insertion part 131 is inserted into the first insertion hole 121 and the first folded edge 120 of one mounting bracket 100 abuts against the second folded edge 130 of another mounting bracket 100, the orthographic projection of the second threaded hole 142 of one mounting bracket 100 along the second direction falls completely into the orthographic projection of the mounting through hole 141 of the other mounting bracket 100 along the second direction. After the third folded edges 140 of the two mounting brackets 100 abut against each other, the second screw 200 is installed on the outside. Specifically, the second screw 200 is passed through the mounting through hole 141 of the third folded edge 140 on the outside and threaded into the second threaded hole 142 of the third folded edge 140 on the inside, so that the third folded edge 140 on the outside is clamped between the head of the second screw 200 and the third folded edge 140 on the inside, thereby restricting the relative movement of the two mounting brackets 100 in the first direction, and further restricting the insertion part 131 inserted into the first insertion hole 121 from disengaging from the first insertion hole 121 in the first direction.

[0043] Since the diameter of the mounting through hole 141 is larger than the diameter of the second threaded hole 142, when the third folded edges 140 of the two mounting brackets 100 abut against each other, the orthographic projection of the second threaded hole 142 of one mounting bracket 100 along the second direction can completely fall into the orthographic projection of the mounting through hole 141 of the other mounting bracket 100 along the second direction. That is, the third folded edge 140 of one mounting bracket 100 will not block the second threaded hole 142 of the third folded edge 140 of the other mounting bracket 100.

[0044] Reference Figures 1 to 3 In some embodiments, the substrate 110 is provided with wiring holes 111 for routing wires to facilitate the arrangement of wiring required for the ceiling speaker.

[0045] Reference Figures 1 to 3 In some embodiments, the substrate 110 is provided with screw holes 112 for screws to pass through, so that the substrate 110 can be fixed to the top of the speaker body 300 or the ceiling a by screws.

[0046] According to an embodiment of this application, a ceiling speaker includes a speaker body 300 and the aforementioned mounting components, wherein one mounting bracket 100 is used to fix to the top of the speaker body 300 and the other mounting bracket 100 is used to fix to the ceiling a.

[0047] In the description of this specification, the use of terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples" indicates that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An installation component, characterized in that, For mounting ceiling-mounted speakers, the mounting components include: Two mounting brackets include a base plate. The base plate has a first folded edge on one side along a first direction and a second folded edge on the other side along the first direction. The first folded edge and the second folded edge have the same bending direction. The first folded edge has a first insertion hole that penetrates through the first folded edge. The second folded edge has an insertion part corresponding to the first insertion hole. The first folded edge or the second folded edge of one mounting bracket is used to be inserted between the first folded edge and the second folded edge of the other mounting bracket along a second direction. The insertion part of one mounting bracket is used to be inserted into the first insertion hole of the other mounting bracket along the first direction. A locking structure is provided to prevent the plug portion inserted into the first plug hole from disengaging from the first plug hole.

2. The mounting assembly as described in claim 1, characterized in that, The locking structure includes a limiting part disposed at the end of the plug-in portion. The diameter of the limiting part is larger than the diameter of the plug-in portion and smaller than the diameter of the first plug-in hole. The limiting part is used to restrict the plug-in portion inserted into the first plug-in hole from disengaging from the first plug-in hole along the first direction.

3. The mounting assembly as described in claim 2, characterized in that, The insertion part is configured as the shank of the first screw, the head of the first screw forms the limiting part, the second folded edge is provided with a first threaded hole corresponding to the first screw, and the first screw is threadedly connected to the first threaded hole.

4. The mounting assembly as described in claim 3, characterized in that, The first folded edge is provided with two second insertion holes that penetrate the first folded edge and are used for inserting the insertion part. The diameter of the limiting part is smaller than the diameter of the second insertion hole. The limiting part can restrict the insertion part inserted into the second insertion hole from leaving the second insertion hole along the first direction. The two second insertion holes are spaced apart along the second direction and connected to the first insertion hole, so that the insertion part inserted into the second insertion hole can move along the second direction to the corresponding first insertion hole. The two second insertion holes are symmetrically arranged along the second direction with respect to the center line of the first insertion hole.

5. The mounting assembly as described in claim 4, characterized in that, The wall of the second insertion hole is arc-shaped.

6. The mounting assembly as described in any one of claims 2 to 5, characterized in that, The substrate has a third folded edge on one side along the second direction. There are clearance openings between the third folded edge and the first folded edge, and between the third folded edge and the second folded edge. When the insertion part of one of the mounting brackets is aligned with the first insertion hole of the other mounting bracket, the third folded edges of the two mounting brackets can abut against each other.

7. The mounting assembly as described in claim 6, characterized in that, The locking structure includes a second screw. The third folded edge is provided with a mounting through hole and a second threaded hole. The mounting through hole and the second threaded hole are spaced apart along the first direction. The diameter of the mounting through hole is larger than the diameter of the second threaded hole. The diameter of the mounting through hole is smaller than the diameter of the head of the second screw. When the plug is inserted into the first plug hole and the first folded edge of one of the mounting brackets abuts against the second folded edge of the other mounting bracket, the orthographic projection of the second threaded hole of one of the mounting brackets along the second direction falls completely into the orthographic projection of the mounting through hole of the other mounting bracket along the second direction.

8. The mounting assembly as claimed in claim 1, characterized in that, The substrate is provided with wiring holes for passing through the circuit.

9. The mounting assembly as claimed in claim 1, characterized in that, The substrate is provided with screw holes for inserting screws.

10. A ceiling-mounted speaker, characterized in that, It includes a speaker body and a mounting assembly as described in any one of claims 1 to 9, wherein one of the mounting brackets is for fixing to the top of the speaker body and the other of the mounting brackets is for fixing to the ceiling.