Embedded cinema combined sound box

Abstract

An embedded cinema combined sound box comprises a bass sound box and a mid-high pitch sound box, the bass sound box comprises a first box body and a bass loudspeaker, the mid-high pitch sound box comprises a second box body, an alto loudspeaker and a tweeter, a first concave cavity used for containing the mid-high pitch sound box is formed in the middle of the first box body, and a second concave cavity used for containing the alto loudspeaker is formed in the middle of the second box body. Second concave cavities for accommodating the woofer are arranged on the first box body and on the two sides of the first concave cavity; the second box body is internally provided with two alto loudspeaker groups which are distributed left and right, and the tweeter is arranged at the front position between the two alto loudspeaker groups; the bottom of the second box body is movably connected with the first box body through an angle support, and the bottom of the second box body is fixedly connected with the first box body through a limiting screw. The three sound boxes are integrated together, so that the overall size is smaller, the overall height of the sound box is greatly reduced, and the requirements of the combined sound box in a cinema are met; high-pitch or medium-high-pitch radiation angle adjustment can be realized, and the requirement of a main sound box of a cinema on sound directivity is met.

Description

Technical Field

[0001] The utility model relates to the technical field of sound, in particular to an embedded cinema combined sound box. Background Art

[0002] There are three types of cinema speakers at present: 1. Bass and treble or mid-treble are assembled on the same box; 2. Bass and treble or mid-treble are two independent products, which are used in combination one up and one down; 3. Bass and treble or mid-treble are two independent products, and the treble or mid-treble is installed in the bass speaker through a connecting fixture. The above types of cinema speakers have the following technical problems: 1. Bass and treble or mid-treble are assembled on the same box; the treble or mid-treble cannot adjust the radiation angle separately, resulting in the sound not being accurately projected to the center of the audience. 2. Bass and treble or mid-treble are two independent products, which are used in combination one up and one down; the treble or mid-treble can adjust the radiation angle up and down and left and right, but the height of this type of product after combination exceeds 1 meter, and even reaches nearly 3 meters, which requires a lot of space, especially for LED screen cinemas, which cannot provide such space. 3. The bass and treble or mid-treble are two independent products. The treble or mid-treble is installed in the bass speaker through a connecting fixture. Currently, this type of treble or mid-treble can only provide one angle adjustment method, either up or down or left or right, which cannot meet the needs of cinema sound reinforcement. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a built-in cinema combination speaker, in which three speakers are integrated together, the overall volume is smaller, and the overall height of the speaker is greatly reduced, so as to meet the needs of the combination audio in the cinema; the treble or mid-treble radiation angle can be adjusted to meet the requirements of the main speaker of the cinema for sound directivity.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: an embedded cinema combination sound box, including a bass speaker and a mid-high frequency speaker, the bass speaker includes a first box and a bass speaker, the mid-high frequency speaker includes a second box, a mid-range speaker and a tweeter, the middle part of the first box is provided with a first concave cavity for accommodating the mid-high frequency speaker, and the first box is provided with a second concave cavity for accommodating the bass speaker on both sides of the first concave cavity; two groups of mid-range speaker groups distributed on the left and right are arranged in the second box, and the tweeter is arranged in the front position between the two groups of mid-range speaker groups; the bottom of the second box is movably connected to the first box through an angle bracket, and the bottom of the second box is fixedly connected to the first box through a limit screw. The principle of the utility model is as follows: the mid-range speaker and the tweeter are integrated in the second box to form a mid-high-range speaker, and the mid-high-range speaker and the woofer are integrated in the second box to form a cinema combination speaker. The three speakers are integrated together, the overall volume is smaller, and the overall height of the speaker is greatly reduced, which meets the needs of the combination audio system in the cinema; the mid-high-range speaker is embedded in the middle position of the first box through an angle bracket, and the mid-high-range speaker can adjust the radiation angle through the angle bracket. After the angle adjustment is completed, the second box can be fixed by a limit screw.

[0005] As an improvement, each midrange speaker group includes two midrange speakers, and the four midrange speakers are distributed in a matrix.

[0006] As an improvement, the second concave cavity is surrounded by a left sealing plate, a right sealing plate, an upper sealing plate, a lower sealing plate and a rear sealing plate.

[0007] As an improvement, the inner sides of the left sealing plate, the right sealing plate, the upper sealing plate and the lower sealing plate are provided with slots for clamping the edges of the bass speakers.

[0008] As an improvement, sound-permeable holes are provided on the lower sealing plate, the left sealing plate and the right sealing plate in front of the woofer.

[0009] As an improvement, the first box body is rectangular, and screw holes for fixing the second box body are provided at the upper and lower ends of the first box body.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The three speakers are integrated together, with a smaller overall volume, which greatly reduces the overall height of the speakers and meets the needs of combination audio systems in cinemas; the mid-high frequency speakers are embedded in the middle position of the first box through an angle bracket, and the radiation angle of the mid-high frequency speakers can be adjusted through the angle bracket. After the angle adjustment is completed, the second box can be fixed by the limit screws. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the utility model.

[0013] Figure 2 Schematic diagram of mid-high frequency speaker. DETAILED DESCRIPTION

[0014] The utility model will be further described below in conjunction with the accompanying drawings.

[0015] like Figure 1 As shown, a built-in cinema combined sound box includes a bass speaker and a mid-high frequency speaker, wherein the bass speaker includes a first box 1 and a bass speaker 3, and the mid-high frequency speaker includes a second box 2, a mid-range speaker 4 and a tweeter 5. The first box 1 is rectangular, and a first concave cavity 6 for accommodating the mid-high frequency speaker is provided in the middle of the first box 1. The front and one side of the first concave cavity 6 are open, and the front opening is used to transmit sound, and the opening on one side is convenient for disassembly and assembly of the mid-high frequency speaker; the bottom of the second box 2 is movably connected to the first box 1 through an angle bracket 9, and the bottom of the second box 2 is fixedly connected to the first box 1 through a limit screw 10; two groups of mid-range speakers 4 are arranged in the second box 2, which are distributed left and right, and the two groups of mid-range speakers 4 are slightly inclined to the middle, and the tweeter 5 is arranged in the front position between the two groups of mid-range speakers 4; each group of mid-range speakers 4 includes two mid-range speakers 4, and the four mid-range speakers 4 are distributed in a matrix, that is, the four mid-range speakers 4 are distributed at the four corners of the second box 2. On both sides of the first cavity 6, the first box body 1 is provided with a second cavity 7 for accommodating the woofer 3. The second cavity 7 is square and is surrounded by a left cover plate, a right cover plate, an upper cover plate, a lower cover plate and a rear cover plate. The upper cover plates of the two second cavities 7 are a plate, the lower cover plates of the two second cavities 7 are a plate, and the rear cover plates of the two second cavities 7 are a plate. The inner sides of the left cover plate, the right cover plate, the upper cover plate and the lower cover plate are provided with a slot for clamping the edge of the woofer 3, and the woofer 3 is slightly tilted downward. In each second cavity 7, the lower cover plate, the left cover plate and the right cover plate are provided with a sound-permeable hole 8 in front of the woofer 3. The upper and lower ends of the first box body 1 are provided with screw holes 11 for fixing the second box body 2. When the bass speaker is placed vertically, the mid-high frequency speaker can also be placed on the upper end surface of the first box body 1 in the vertical state, fixed by screws, and the left and right and downward angles can be adjusted. Figure 2 As shown, the angle bracket 9 includes a base plate 91, a first ear plate 92 provided on both sides of the front end of the base plate 91, and a second ear plate 93 provided on both sides of the rear end of the base plate 91. The base plate 91 is fixed to the lower cover plate of the first box body. The first ear plate 92 is provided with a first hinge hole. The side of the second box body is hinged to the first ear plate 92 through a first hinge axis. The second ear plate 93 is provided with a plurality of vertically arranged second hinge holes. The bottom of the second box body is provided with a third ear plate 94 corresponding to the second ear plate 93. The third ear plate 94 is provided with a third hinge hole. The third ear plate 94 is hinged to the second ear plate 93 through a second hinge axis.

[0016] Principle of the utility model: the mid-range speaker 4 and the tweeter 5 are integrated in the second box body 2 to form a mid-high frequency speaker, and the mid-high frequency speaker and the woofer 3 are integrated in the second box body 2 to form a cinema combination speaker. The three speakers are integrated together, the overall volume is smaller, and the overall height of the speaker is greatly reduced to meet the needs of the combination audio system in the cinema; the mid-high frequency speaker is embedded in the middle position of the first box body 1 through an angle bracket 9, and the mid-high frequency speaker can realize radiation angle adjustment through the angle bracket 9. After the angle adjustment is completed, the second box body 2 can be fixed by the limit screw 10.

Claims

1. A built-in cinema combined sound box, comprising a bass speaker and a mid-high frequency speaker, wherein the bass speaker comprises a first box body and a bass speaker, and the mid-high frequency speaker comprises a second box body, a mid-range speaker and a tweeter, characterized in that: A first concave cavity for accommodating a mid-range and tweeter speaker is provided in the middle of the first box, and second concave cavities for accommodating a woofer are provided on both sides of the first concave cavity on the first box; two groups of mid-range speaker groups distributed on the left and right are provided in the second box, and the tweeter is arranged in the front position between the two groups of mid-range speaker groups; the bottom of the second box is movably connected to the first box through an angle bracket, and the bottom of the second box is fixedly connected to the first box through a limit screw.

2. The built-in cinema combination sound box according to claim 1, characterized in that: Each midrange speaker group includes two midrange speakers, and the four midrange speakers are distributed in a matrix.

3. The built-in cinema combination sound box according to claim 1, characterized in that: The second concave cavity is surrounded by a left sealing plate, a right sealing plate, an upper sealing plate, a lower sealing plate and a rear sealing plate.

4. The built-in cinema combined sound box according to claim 3, characterized in that: The inner sides of the left sealing plate, the right sealing plate, the upper sealing plate and the lower sealing plate are provided with slots for clamping the edges of the bass speakers.

5. The built-in cinema combined sound box according to claim 3, characterized in that: The lower sealing plate, the left sealing plate and the right sealing plate are provided with sound-permeable holes in front of the woofer.

6. The built-in cinema combined sound box according to claim 1, characterized in that: The first box body is rectangular, and screw holes for fixing the second box body are arranged at the upper and lower ends of the first box body.

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