Ceiling type sound box

Abstract

The utility model discloses a ceiling type sound box, which relates to the technical field of sound boxes, and comprises a sound box and a fastener, the fastener comprises a fastening ring with an annular structure, the fastening ring is in threaded sleeve connection with the outer wall of the other end of the sound box, one end of the fastening ring far away from an expanding part is provided with a plurality of expanding sheets, and the plurality of expanding sheets form an expanding part. The expanding part is used for abutting against the inner wall of the pre-installation groove hole, the expanding pieces are arranged in the tangential direction of the outer wall of the fastening ring, the sides, close to the center of the fastening ring, of the expanding pieces are bent to form bent parts, and the distance between the side walls of the bent parts and the center of the fastening ring is smaller than the radius of the fastening ring. According to the utility model, when the end part of the sound equipment is inserted into the fastening ring, the bending part of the expanding and supporting sheet is extruded and deformed, so that the edges of the upper and lower side walls of the expanding and supporting sheet are in linear contact with the inner wall of the pre-formed slotted hole, the fastening ring is subjected to rotation limitation, and the end part of the sound equipment is screwed into the fastening ring through threads, thereby realizing rapid installation of the sound equipment without fixing the fastening piece in advance; and the sound box can be quickly disassembled to replace the mounting position through reverse rotation.

Description

Technical Field

[0001] The utility model relates to the technical field of audio, in particular to a ceiling-mounted audio system. Background Art

[0002] A ceiling speaker is a speaker installed on the top (ceiling) of a building. It does not take up space, is easy to install, and is easy to operate in a unified manner. It is widely used in background music and public broadcasting systems in restaurants, teahouses, playgrounds, stations, schools, squares, office buildings, workshops, and other places. When installing a ceiling speaker in the prior art, it is usually necessary to pre-open a mounting slot on the ceiling, install the base in the slot with bolts, and then assemble the base and the speaker with bolts or buckles. There are many steps and a lot of work to install and disassemble. There are also spring clips that directly clip the speaker in the slot. Once installed, it is necessary to use a lot of force to pull it outwards for disassembly, maintenance, or changing the installation position, which is very inconvenient and easy to damage the speaker during disassembly. Utility Model Content

[0003] The purpose of the utility model is to provide a ceiling-mounted speaker to solve the problems raised in the above-mentioned background technology.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a ceiling-mounted speaker, comprising a speaker, wherein an expansion portion is radially arranged at one end of the speaker, and a sound enclosure is embedded on the surface wall of the expansion portion, characterized in that it also comprises a fastener, wherein the fastener comprises a fastening ring of an annular structure, wherein the fastening ring is threadedly sleeved with the outer wall of the other end of the speaker, wherein a plurality of expansion pieces are arranged at one end of the fastening ring away from the expansion portion, wherein the plurality of expansion pieces constitute an expansion component, and wherein the expansion component is used to abut against the inner wall of the pre-installed slot hole;

[0005] The expansion piece is arranged along the tangent direction of the outer wall of the fastening ring, and the expansion piece is bent toward the side close to the center of the fastening ring to form a curved portion, and the distance between the side wall of the curved portion and the center of the fastening ring is less than the radius of the fastening ring.

[0006] In a further embodiment, a spherical block is fixed on the side wall of the curved portion of the expansion piece, and a plurality of retaining grooves are provided on the outer wall of the speaker away from the expansion portion. The retaining grooves have an arc-shaped structure, and the spherical block is engaged with the inner wall of the arc-shaped structure of the retaining groove.

[0007] In a further embodiment, a plurality of rectangular notches are provided at the end of the expansion piece, and the portion of the expansion piece located between two adjacent rectangular notches is a deformation end.

[0008] In a further embodiment, the fastener further comprises a limit baffle, and connecting rods are fixed to both ends of the side wall of the limit baffle facing the fastening ring, and the connecting rods are fixedly connected to the side wall of the fastening ring.

[0009] In a further embodiment, two elastic limiting plates extend symmetrically from the side wall of the limiting baffle facing the speaker, the ends of the two elastic limiting plates bend and extend toward one end close to each other, and a deformation gap is provided between the ends of the two elastic limiting plates.

[0010] In a further embodiment, the radial side wall of the expansion portion is provided with a plurality of slots.

[0011] In a further embodiment, the outer wall of the speaker is sleeved with a sealing gasket with a corrugated structure.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model is a ceiling-mounted speaker. When the end of the speaker is inserted into the fastening ring, the bent part of the expansion plate is squeezed and deformed, so that the edge edges of the upper and lower side walls of the expansion plate form line contact with the inner wall of the pre-opened slot hole, and the rotation of the fastening ring is restricted. The end of the speaker is screwed into the fastening ring to realize the installation of the speaker. There is no need to fix the fastener in the pre-opened slot hole in the ceiling in advance, and the installation is convenient and quick.

[0014] When disassembling the utility model, the speaker can be separated from the fastening ring by simply inverting the speaker. After the end of the speaker is pulled out of the fastening ring, the bent portion of the expansion plate is reset, and the upper and lower side wall edges of the expansion plate are separated from the inner wall of the pre-opened slot, thereby facilitating the removal of the fastener from the pre-opened slot, so as to facilitate the replacement of the installation position and save installation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural explosion diagram of an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the assembly structure of the speaker and the sealing gasket of an embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the fastening ring of an embodiment of the utility model;

[0018] Figure 4 This is a top view of the structure of the fastening ring of the embodiment of the utility model;

[0019] Figure 5 This is a schematic diagram of a further improved structure of the fastening ring of the embodiment of the utility model;

[0020] Figure 6 A schematic diagram of a further improved structure of the sound system of the utility model embodiment;

[0021] Figure 7 This is a schematic diagram of a further improved structure of the expansion and support piece of an embodiment of the utility model.

[0022] In the figure: 1, speaker; 11, cardon groove; 2, sealing gasket; 3, fastening ring; 31, expansion plate; 32, limit baffle; 33, connecting rod; 34, elastic limit plate; 35, spherical block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Examples, such as Figure 1 and Figure 2 As shown, this embodiment provides a ceiling-mounted speaker 1, including a speaker 1, an expansion portion is provided at one end of the speaker 1 along the radial direction, and a sound enclosure is embedded on the surface wall of the expansion portion. The structure of the speaker refers to the Chinese utility model patent with the publication number CN215010585U, and the name is a ceiling-mounted speaker that is easy to install. A sound enclosure is provided at the bottom of the speaker body, and the sound enclosure is a detachable structure design. A speaker is provided inside the speaker body and at the position of the sound enclosure, and a control button is provided at the center of the sound enclosure. When using the ceiling-mounted speaker that is easy to install, first connect the speaker body to the corresponding power-carrying wire to realize power supply, and the speaker body is connected to the playback device using Bluetooth or high-definition cable for sound playback.

[0025] The fastener includes a fastening ring 3 of an annular structure, the fastening ring 3 is threadedly sleeved with the outer wall of the other end of the speaker 1, and a plurality of expansion pieces 31 are provided at one end of the fastening ring 3 away from the expansion part. It should be noted that the expansion pieces 31 need to be arranged along the tangent direction of the outer wall of the fastening ring 3, and the expansion pieces 31 are bent toward the side close to the center of the fastening ring 3 to form a bent part. Multiple expansion pieces 31 form an expansion component, such as Figure 1 and Figure 3 As shown, there are at least two, preferably two, expansion pieces 31 to form a relative rectangular structure. The two expansion pieces 31 are relatively pressed against the inner wall of the pre-installed slot hole to limit the rotation of the fastening ring 3 on the inner wall of the slot hole pre-opened on the building ceiling.

[0026] Insert the fastening ring 3 directly into the pre-opened slot on the building ceiling, and then thread the speaker 1 to the fastening ring 3. The distance between the side wall of the curved part and the center of the fastening ring 3 is less than the radius of the fastening ring 3. Figure 4As shown, the radial length between the side wall of the curved portion and the inner wall of the fastening ring 3 is T, that is, when the end of the speaker 1 is inserted into the fastening ring 3, the end of the speaker 1 will squeeze and deform the curved portion of the expansion sheet 31, and the end of the expansion sheet 31 will be stretched along the axial direction of the inner wall of the pre-opened slot. After the curved portion is deformed, the side wall of the curved portion is flush with the inner wall of the fastening ring 3, and at the same time, the upper and lower side wall edges of the expansion sheet 31 form a line contact with the inner wall of the pre-opened slot, generating static friction, limiting the rotation of the fastening ring 3, and preventing the fastening ring 3 from rotating synchronously with the speaker 1 when the speaker 1 is rotated. The end of the speaker 1 is screwed into the fastening ring 3, and the expansion sheet 31 is pressed against the edge of the pre-opened slot to block the column slot, so that the speaker 1 can be quickly installed without fixing the fasteners in the pre-opened slots in the ceiling in advance, and the installation is convenient and quick.

[0027] At the same time, when disassembling, you only need to reverse the speaker 1 to separate the speaker 1 from the fastening ring 3. After the end of the speaker 1 is pulled out from the fastening ring 3, the bent portion of the expansion piece 31 is reset, so that the upper and lower side wall edges of the expansion piece 31 are separated from the inner wall of the pre-opened slot, thereby facilitating the removal of the fastener from the pre-opened slot, so as to facilitate the replacement of the installation position and save installation costs.

[0028] Further, such as Figure 5 and Figure 6 As shown, a spherical block 35 is fixed on the side wall of the curved portion of the expansion sheet 31, and a plurality of latch grooves 11 are provided on the outer wall of the end of the speaker 1 away from the expansion portion. The latch grooves 11 have an arc-shaped structure, and the spherical block 35 engages with the inner wall of the arc-shaped structure of the latch groove 11. When the end of the speaker 1 is screwed into the process column in the fastening ring 3, the plurality of latch grooves 11 of the speaker 1 will sequentially pass over the spherical block 35 until the expansion portion of the speaker 1 abuts against the side wall of the opening of the pre-slotted hole in the ceiling, and the spherical block 35 abuts against the corresponding latch groove 11. The purpose of this arrangement is that after the end of the speaker 1 is screwed into the fastening ring 3, it will not easily rotate in the opposite direction and disengage from the fastening ring 3.

[0029] Of course, a plurality of rectangular notches may be provided at the end of the expansion sheet 31, and the portion of the expansion sheet 31 located between two adjacent rectangular notches is the deformation end. Figure 7 As shown, when the expansion piece 31 is rotated and screwed into the fastening ring 3, the two bent parts of the expansion pieces 31 are stretched open, and the side walls of the expansion piece 31 are pressed against the inner wall of the pre-opened hole groove in the ceiling. At the same time, multiple deformed ends are correspondingly deformed due to the squeezing of the outer wall of the end of the speaker 1. The deformed ends are pressed against the inner wall of the pre-opened hole groove in the ceiling, expanding the contact area between the expansion piece 31 and the inner wall of the hole groove, thereby further enhancing the friction force when the expansion piece 31 is pressed against the inner wall of the hole groove, increasing the rotation resistance of the fastening ring 3, and preventing the fastening ring 3 from rotating synchronously with the speaker 1.

[0030] In this embodiment, if Figure 1As shown, the fastener also includes a limit baffle 32, and connecting rods 33 are fixed at both ends of the side wall of the limit baffle 32 facing the fastening ring 3, and the connecting rod 33 is fixedly connected to the side wall of the fastening ring 3. Two elastic limit pieces 34 are symmetrically extended from the side wall of the limit baffle 32 facing the speaker 1, and the ends of the two elastic limit pieces 34 are bent and extended toward one end close to each other, and a deformation gap is provided between the ends of the two elastic limit pieces 34. The limit baffle 32 is used as a limit structure for the speaker 1 to rotate and screw in. As the end of the speaker 1 is continuously screwed in, it will abut against the ends of the two elastic limit pieces 34, and the ends of the two elastic limit pieces 34 will be squeezed and bent, and rebound potential energy will be generated to abut against the side wall of the end of the speaker 1, so as to prevent the speaker 1 from loosening due to reverse rotation.

[0031] The radial side wall of the expanded part is provided with a plurality of notches, and the notches are provided to facilitate the auxiliary rotation of the speaker 1 to screw in and out of the fastening ring 3. The outer wall of the speaker 1 is sleeved with a sealing gasket 2 with a corrugated structure, such as Figure 2 As shown, by adding a sealing gasket 2 with a corrugated structure, it has the characteristic of compression deformation. When the speaker 1 is screwed into the fastening ring 3, the sealing gasket 2 will be compressed to improve the fit between the enlarged part and the side wall of the groove edge.

[0032] 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 ceiling-mounted speaker, comprising a speaker (1), wherein one end of the speaker (1) is provided with an expansion portion along the radial direction, and a sound enclosure is embedded in the surface wall of the expansion portion, characterized in that: It also includes a fastener, the fastener including a fastening ring (3) of an annular structure, the fastening ring (3) being threadedly sleeved with the outer wall of the other end of the speaker (1), a plurality of expansion pieces (31) being provided at one end of the fastening ring (3) away from the enlarged portion, the plurality of expansion pieces (31) forming an expansion component, the expansion component being used to abut against the inner wall of the pre-installed slot hole; The expansion piece (31) is arranged along the tangent direction of the outer wall of the fastening ring (3), and the expansion piece (31) is bent toward a side close to the center of the fastening ring (3) to form a curved portion, and the distance between the side wall of the curved portion and the center of the fastening ring (3) is less than the radius of the fastening ring (3).

2. The ceiling speaker according to claim 1, characterized in that: A spherical block (35) is fixed on the side wall of the curved portion of the expansion plate (31); a plurality of latch grooves (11) are provided on the outer wall of one end of the speaker (1) away from the expansion portion; the inside of the latch grooves (11) is an arc-shaped structure; the spherical block (35) is engaged with the inner wall of the arc-shaped structure of the latch groove (11).

3. The ceiling speaker according to claim 1 or 2, characterized in that: The end of the expansion piece (31) is provided with a plurality of rectangular notches, and the portion of the expansion piece (31) located between two adjacent rectangular notches is a deformation end.

4. The ceiling speaker according to claim 1, characterized in that: The fastener also includes a limit baffle (32), and connecting rods (33) are fixed to both ends of the side wall of the limit baffle (32) facing the fastening ring (3), and the connecting rods (33) are fixedly connected to the side wall of the fastening ring (3).

5. The ceiling speaker according to claim 4, characterized in that: Two elastic limiting plates (34) are symmetrically extended from a side wall of the limiting baffle (32) facing the speaker (1), the ends of the two elastic limiting plates (34) are bent and extended toward one end close to each other, and a deformation gap is provided between the ends of the two elastic limiting plates (34).

6. The ceiling speaker according to claim 1, characterized in that: The radial side wall of the expansion portion is provided with a plurality of notches.

7. The ceiling speaker according to claim 1, characterized in that: The outer wall of the speaker (1) is sleeved with a sealing gasket (2) with a corrugated structure.

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