Audio amplifier rear cover fixing structure

Abstract

The utility model discloses an audio amplifier rear cover fixing structure which comprises a rear cover, an elastic layer is installed on the inner wall of the front end of the rear cover, four protruding blocks are integrally formed on the outer wall of the rear cover at equal intervals in an annular mode, rotating shafts are movably connected to the two sides of every two symmetrical protruding blocks, the top ends of the rotating shafts are connected with containing rods, and the containing rods are connected with the elastic layer. A containing groove is formed in the containing rod, one end of a connecting spring is connected into the containing groove, a connecting rod is connected to the other end of the connecting spring, the connecting rod is movably connected into the containing groove, a sliding groove is formed in one end of the connecting rod, and a fixing rod is movably connected into the sliding groove. And limiting blocks are mounted at the top end and the bottom end of the fixing rod. According to the audio amplifier rear cover fixing structure, the loudspeaker can be quickly mounted and dismounted through the pin columns, operation is simple and quick, vibration of the loudspeaker during working is small, and damage to tone quality is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of audio equipment, in particular to a rear cover fixing structure of an audio amplifier. Background Art

[0002] The main function of an audio amplifier is to boost weak audio signals to a power that can drive output devices such as speakers. It can improve the clarity of sound quality and the volume. At the same time, it can also adjust and process audio signals, such as equalization, delay, reverberation, etc., to improve the sound effect. The speaker of an audio amplifier is often installed on the back cover.

[0003] However, the existing audio amplifier rear cover fixing structure often uses screws to install the speaker, which is complicated to disassemble and assemble, has low efficiency, and has large vibration during operation, which easily damages the sound quality. Utility Model Content

[0004] The purpose of the utility model is to provide an audio amplifier back cover fixing structure, which can quickly complete the installation and removal of the speaker through pins, the operation is simple and fast, and the speaker vibrates less when working, reducing the damage to the sound quality, and solving the problems raised by the above technical background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rear cover fixing structure of an audio amplifier, comprising: a rear cover, an elastic layer is installed on the inner wall of the front end of the rear cover, the outer wall of the rear cover is equidistantly annularly integrally formed with four protrusions, and both sides of the two symmetrical protrusions are movably connected with a rotating shaft, the top end of the rotating shaft is connected with a receiving rod, the interior of the receiving rod is provided with a receiving groove, the interior of the receiving groove is connected with one end of a connecting spring, the other end of the connecting spring is connected with a connecting rod, and the connecting rod is movably connected in the receiving groove, one end of the connecting rod is provided with a sliding groove, the sliding groove is movably connected with a fixing rod, and the top and bottom ends of the fixing rod are both installed with limit blocks;

[0006] The back cover is used to accommodate the speaker, the elastic layer is used to prevent the speaker from being damaged when the speaker is fixed and to protect the speaker, the protrusion is used to connect the rotating shaft and the connecting shaft, the rotating shaft is used to connect the accommodating rod and enable the accommodating rod to rotate, the accommodating rod is used to open a accommodating groove, the accommodating groove is used to install a connecting spring and accommodate the connecting rod, the connecting spring is used to drive the connecting rod to reset after it moves, the connecting rod is used to open a sliding groove and drive the fixed rod to move, the sliding groove is used to accommodate the fixed rod and enable the fixed rod to move up and down, the fixed rod is used to be inserted into the speaker to complete the installation of the speaker, and the limit block is used to prevent the fixed rod from escaping from the sliding groove.

[0007] Preferably, a sound outlet hole is provided on the rear cover, and the sound outlet hole runs through the front end and the rear end of the rear cover; the sound outlet hole is used to diffuse the sound of the speaker.

[0008] Preferably, a mounting groove is provided at the rear end of the rear cover, a plurality of snap grooves are provided on the inner wall of the mounting groove in an equidistant ring shape, a filter screen is arranged in the mounting groove, a plurality of snap blocks are integrally formed on the outer wall of the filter screen in an equidistant ring shape, and the plurality of snap blocks are snapped into the plurality of snap grooves respectively; the mounting groove is used to accommodate the filter screen, the snap groove is used to insert the snap blocks, and the snap blocks are used to snap into the snap grooves to complete the installation of the filter screen.

[0009] Preferably, buckle grooves are provided on both sides of the top of the filter net, and anti-slip patterns are provided on the surfaces of the buckle grooves; the buckle grooves are used to facilitate buckling up the filter net.

[0010] Preferably, the other two symmetrical protrusions of the back cover are movably connected with a connecting shaft, a torsion spring is installed on the connecting shaft, and a cover plate is installed on the connecting shaft; the connecting shaft is used to connect the cover plate so that the cover plate can rotate, the torsion spring is used to drive the connecting shaft to reset after rotation, and the cover plate is used to limit the movement of the speaker.

[0011] Preferably, an anti-skid pad is installed at the bottom end of the cover plate, and the anti-skid pad is provided with anti-skid patterns; the anti-skid pad is used to prevent the speaker from sliding under the cover plate.

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

[0013] By pulling the accommodation rod, the accommodation rod drives the rotating shaft to rotate, and the speaker is placed in the back cover. The accommodation rod is pulled again to reset, and the connecting rod is pulled to slide in the accommodation groove. The connecting spring is stretched, so that the fixing rod is aligned with the installation hole of the speaker. The fixing rod is pressed down, and the limit block blocks the movement of the fixing rod, so that the fixing rod is pushed into the installation hole of the speaker. The connecting spring contracts and pulls the connecting rod to tighten, so that the fixing rod is stuck in the installation hole of the speaker, and the installation of the speaker is completed. When the speaker is working, the elastic layer absorbs vibration;

[0014] The audio amplifier rear cover fixing structure can quickly complete the installation and removal of the speaker through the pin, the operation is simple and fast, and the speaker vibrates less when working, reducing the damage to the sound quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the front end of the rear cover of the utility model;

[0016] Figure 2 This is a schematic structural diagram of the rear end of the rear cover of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the filter screen of the utility model;

[0018] Figure 4It is a structural schematic diagram of the accommodating rod and its connecting piece of the utility model.

[0019] The reference numerals and names in the figures are as follows:

[0020] 100, back cover; 110, elastic layer; 120, sound outlet; 130, installation slot; 131, buckle slot; 200, protrusion; 210, rotating shaft; 220, accommodating rod; 221, accommodating slot; 230, connecting spring; 240, connecting rod; 241, slide slot; 250, fixing rod; 251, limiting block; 300, connecting shaft; 310, torsion spring; 320, cover plate; 321, anti-slip pad; 400, filter; 410, buckle block; 420, buckle slot. DETAILED DESCRIPTION

[0021] 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.

[0022] Embodiment 1

[0023] See also Figures 1 to 4 The embodiment provided by the utility model is a back cover fixing structure of an audio amplifier, comprising: a back cover 100, an elastic layer 110 is bonded and connected to the inner wall of the front end of the back cover 100, four equidistant annular integrally formed protrusions 200 are formed on the outer wall of the back cover 100, and both sides of two symmetrical protrusions 200 are rotatably connected with a rotating shaft 210, a receiving rod 220 is welded to the top of the rotating shaft 210, a receiving groove 221 is provided inside the receiving rod 220, one end of a connecting spring 230 is welded inside the receiving groove 221, a connecting rod 240 is welded to the other end of the connecting spring 230, and the connecting rod 240 is slidably connected in the receiving groove 221, a sliding groove 241 is provided at one end of the connecting rod 240, a fixing rod 250 is slidably connected in the sliding groove 241, and a limiting block 251 is welded to the top and bottom ends of the fixing rod 250;

[0024] During specific use, by pulling the accommodating rod 220, the accommodating rod 220 drives the rotating shaft 210 to rotate, and the speaker is placed in the back cover 100. The accommodating rod 220 is pulled again to reset, and the connecting rod 240 is pulled to slide in the accommodating groove 221. The connecting spring 230 is stretched to align the fixing rod 250 with the installation hole of the speaker. The fixing rod 250 is pressed down, and the limit block 251 blocks the movement of the fixing rod 250, so that the fixing rod 250 is pushed into the installation hole of the speaker. The connecting spring 230 contracts and pulls the connecting rod 240 to tighten, so that the fixing rod 250 is stuck in the installation hole of the speaker, and the installation of the speaker is completed. When the speaker is working, the vibration is absorbed by the elastic layer 110.

[0025] Embodiment 2

[0026] See also Figures 1 to 4 The utility model provides a rear cover fixing structure of an audio amplifier. Compared with the first embodiment, the present embodiment further includes:

[0027] The rear cover 100 is provided with a sound outlet hole 120 , and the sound outlet hole 120 runs through the front end and the rear end of the rear cover 100 ; the sound of the speaker is diffused to the outside through the sound outlet hole 120 .

[0028] A mounting groove 130 is provided at the rear end of the back cover 100, and six snap grooves 131 are equidistantly provided on the inner wall of the mounting groove 130 in an annular shape. A filter screen 400 is arranged in the mounting groove 130, and six snap blocks 410 are integrally formed in an annular shape equidistantly provided on the outer wall of the filter screen 400, and the six snap blocks 410 are respectively snapped into the six snap grooves 131; by installing the filter screen 400 into the mounting groove 130, the snap blocks 410 are embedded in the snap grooves 131, thereby connecting the filter screen 400 and the mounting groove 130.

[0029] Buckle grooves 420 are provided on both sides of the top of the filter 400 , and the surfaces of the buckle grooves 420 are provided with anti-skid patterns; the buckle grooves 420 are used to conveniently pull the filter 400 and remove the filter 400 .

[0030] The other two symmetrical protrusions 200 of the back cover 100 are rotatably connected with a connecting shaft 300, and a torsion spring 310 is welded on the connecting shaft 300. A cover plate 320 is embedded and connected to the connecting shaft 300. By pulling the cover plate 320, the cover plate 320 rotates on the protrusion 200 through the connecting shaft 300, and then the speaker is placed inside the back cover 100, and the cover plate 320 is loosened. The torsion spring 310 drives the connecting shaft 300 to reset, so that the cover plate 320 fits on the speaker to limit the movement of the speaker.

[0031] The bottom end of the cover plate 320 is bonded with an anti-skid pad 321 , which has anti-skid patterns. The anti-skid pad 321 is attached to the speaker through the cover plate 320 , so that the speaker will not slide under the cover plate 320 .

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A rear cover fixing structure of an audio amplifier, characterized in that: include: A rear cover (100), wherein an elastic layer (110) is installed on the inner wall of the front end of the rear cover (100), and the outer wall of the rear cover (100) is equidistantly formed with four protrusions (200) in an integral manner, and both sides of two symmetrical protrusions (200) are movably connected to a rotating shaft (210), and the top end of the rotating shaft (210) is connected to a receiving rod (220), and a receiving groove (221) is provided inside the receiving rod (220), and one end of a connecting spring (230) is connected inside the receiving groove (221), and the other end of the connecting spring (230) is connected to a connecting rod (240), and the connecting rod (240) is movably connected in the receiving groove (221), and a sliding groove (241) is provided at one end of the connecting rod (240), and a fixing rod (250) is movably connected in the sliding groove (241), and a limiting block (251) is installed at the top and bottom of the fixing rod (250).

2. The audio amplifier rear cover fixing structure according to claim 1, characterized in that: The rear cover (100) is provided with a sound outlet hole (120), and the sound outlet hole (120) passes through the front end and the rear end of the rear cover (100).

3. The audio amplifier rear cover fixing structure according to claim 1, characterized in that: A mounting groove (130) is provided at the rear end of the rear cover (100), a plurality of snap grooves (131) are provided on the inner wall of the mounting groove (130) in an equidistant annular shape, a filter screen (400) is arranged in the mounting groove (130), a plurality of snap blocks (410) are integrally formed on the outer wall of the filter screen (400) in an equidistant annular shape, and the plurality of snap blocks (410) are respectively snapped into the plurality of snap grooves (131).

4. The audio amplifier rear cover fixing structure according to claim 3, characterized in that: Buckle grooves (420) are provided on both sides of the top of the filter screen (400), and anti-slip patterns are provided on the surfaces of the buckle grooves (420).

5. The audio amplifier rear cover fixing structure according to claim 1, characterized in that: The other two symmetrical protrusions (200) of the rear cover (100) are movably connected to a connecting shaft (300), a torsion spring (310) is installed on the connecting shaft (300), and a cover plate (320) is installed on the connecting shaft (300).

6. The audio amplifier rear cover fixing structure according to claim 5, characterized in that: An anti-skid pad (321) is installed at the bottom end of the cover plate (320), and the anti-skid pad (321) is provided with anti-skid patterns.

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