Teaching loudspeaker convenient to mount and dismount

Abstract

The utility model relates to the technical field of loudspeakers, in particular to a teaching loudspeaker convenient to mount and dismount, which comprises a mounting plate and a loudspeaker body, a support block is arranged on the mounting plate, an inner hole is arranged on the side wall of the support block, an inserted telescopic rod is arranged in the inner hole, and a rotationally mounted fastening block is arranged on the outer side of the telescopic rod; inner grooves are symmetrically formed in the rear end of the loudspeaker body, through grooves are formed in the upper end and the lower end of the loudspeaker body, the inner grooves directly face the through grooves, the inner grooves are higher than the supporting blocks, the fastening blocks are longer than the inner grooves, and the thickness of the fastening blocks is smaller than the width of the through grooves; the loudspeaker has the beneficial effects that the telescopic rod and the fastening block are arranged, when the fastening block rotates to a certain angle, the limiting block is clamped in the limiting groove, and meanwhile, the fastening block is pressed on the connecting surface of the through groove and the inner groove under the action of the spring, so that the loudspeaker body is more convenient to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, in particular to a teaching loudspeaker which is convenient for installation and disassembly. Background Technique

[0002] A loudspeaker is a device that amplifies sound and transmits it farther, and is mainly used for teaching, guiding tours, outdoors, and speech activities.

[0003] When installing a loudspeaker, it is generally fixed by fasteners. Such a fixed installation method makes it impossible to quickly remove the loudspeaker when a fault occurs, and the disassembly and assembly are relatively inconvenient.

[0004] Existing loudspeakers need to use multiple screws and nuts for combined installation during the installation process. During the installation and disassembly process, manual disassembly and assembly between multiple screws and nuts are required, which brings great inconvenience to use. Content of the Utility Model

[0005] The purpose of the utility model is to provide a teaching loudspeaker which is convenient for installation and disassembly, so as to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A teaching loudspeaker which is convenient for installation and disassembly, including a mounting plate and a loudspeaker body. A support block is arranged on the mounting plate. An inner hole is arranged on the side wall of the support block. A telescopic rod is inserted in the inner hole. A fastening block is rotatably installed on the outer side of the telescopic rod. Inner grooves are symmetrically arranged at the rear end of the loudspeaker body. Through grooves are arranged at both the upper and lower ends of the loudspeaker body. The inner grooves are opposite to the through grooves. The height of the inner grooves is greater than the height of the support block. The length of the fastening block is greater than the height of the inner grooves. The thickness of the fastening block is less than the width of the through grooves. The loudspeaker body is installed on the mounting plate through the inner grooves.

[0008] Preferably, the telescopic rod includes a sleeve, a rod sleeve and a spring. The rod sleeve is inserted into the sleeve. One end of the rod sleeve is connected to the mounting plate. The other end of the rod sleeve is connected to the spring. The other end of the spring is fixed on the inner wall of the sleeve.

[0009] Preferably, the upper surface of the inner groove is pressed against the upper surface of the support block.

[0010] Preferably, the inner wall of the fastening block is pressed against the connecting surface of the through groove and the inner groove.

[0011] Preferably, a limiting groove is arranged on the connecting surface of the inner groove and the through groove. The limiting groove is opposite to the inner groove and the through groove. A limiting block is arranged on the inner side of the fastening block. The limiting block is clamped in the limiting groove.

[0012] Preferably, a bearing cover is arranged on the outer side of the fastening block, and the fastening block is rotatably installed on the telescopic rod through the bearing cover.

[0013] Preferably, a pair of countersunk holes are symmetrically arranged at both the upper and lower ends of the mounting plate, and the mounting plate is fixed to the wall by screws inserted into the countersunk holes.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] By providing a telescopic rod and a fastening block in the present utility model, when the fastening block rotates to a certain angle so that the limiting block is stuck in the limiting groove, and at the same time the fastening block is pressed against the connecting surface of the through groove and the inner groove under the action of the spring, the installation and disassembly of the loudspeaker body are more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 is an exploded view of the present utility model;

[0018] Figure 3 is a side cross-sectional view of the present utility model;

[0019] Figure 4 is Figure 3 an enlarged structural schematic diagram of A in

[0020] In the figure: 1, mounting plate; 2, loudspeaker body; 3, support block; 4, inner hole; 5, countersunk hole; 6, sleeve; 7, limiting block; 8, fastening block; 9, bearing cover; 10, limiting groove; 11, inner groove; 12, spring; 13, sleeve rod; 14, through groove; 15, screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1 to 4 , the present utility model provides a technical solution:

[0023] A teaching megaphone that is convenient for installation and disassembly, including a mounting plate 1 and a megaphone body 2: A support block 3 is provided on the mounting plate 1. An inner hole 4 is provided on the side wall of the support block 3. A telescopic rod is inserted in the inner hole 4. A fastening block 8 is rotatably mounted on the outside of the telescopic rod; Inner grooves 11 are symmetrically provided at the rear end of the megaphone body 2. Through grooves 14 are provided at both the upper and lower ends of the megaphone body 2. The inner grooves 11 are opposite to the through grooves 14. The height of the inner grooves 11 is greater than the height of the support block 3. The length of the fastening block 8 is greater than the height of the inner grooves 11. The thickness of the fastening block 8 is less than the width of the through grooves 14; A limiting groove 10 is provided on the connecting surface of the inner groove 11 and the through groove 14. The limiting groove 10 is opposite to the inner groove 11 and the through groove 14. A limiting block 7 is provided on the inner side of the fastening block 8. The limiting block 7 is clamped in the limiting groove 10. The megaphone body 2 is mounted on the mounting plate through the inner groove 11.

[0024] By providing the telescopic rod and the fastening block 8, when the fastening block 8 is rotated to a certain angle so that the fastening block 8 is misaligned with the inner groove 11, the fastening block 8 is elastically pressed by the telescopic rod in the horizontal direction against the connecting surface of the through groove 14 and the inner groove 11, and at the same time, the limiting block 7 is stuck in the limiting groove 10, realizing the fixation of the megaphone body 2 in the horizontal direction.

[0025] By providing the limiting block 7 and the limiting groove 10, the stability of the fastening block 8 is improved.

[0026] By providing the inner groove 11 and the through groove 14, the rear end of the megaphone body 2 realizes the function of a handle. When the megaphone needs to be transported and moved without being mounted on the wall, the hand passes through the through groove 14 and the inner groove 11 to lift the megaphone body 2.

[0027] The upper surface of the inner groove 11 is pressed against the upper surface of the support block 3.

[0028] By providing the support block 3, a vertical supporting force is provided for the megaphone body 2.

[0029] The inner wall of the fastening block 8 is pressed against the connecting surface of the through groove 14 and the inner groove 11.

[0030] By providing the fastening block 8, under the action of the telescopic rod, it squeezes the megaphone body 2 to provide a force in the horizontal direction.

[0031] The telescopic rod includes a sleeve 6, a rod sleeve 13 and a spring 12. The rod sleeve 13 is inserted into the sleeve 6. One end of the rod sleeve 13 is connected to the mounting plate 1. The other end of the rod sleeve 13 is connected to the spring 12. The other end of the spring 12 is fixed on the inner wall of the sleeve 6.

[0032] By providing the spring 12 to connect the rod sleeve 13 and the sleeve 6, the sleeve 6 is subjected to a force in the horizontal direction, and further the fastening block 8 is subjected to a force in the horizontal direction.

[0033] A bearing cover 9 is provided on the outer side of the fastening block 8, and the fastening block 8 is rotatably mounted on the telescopic rod through the bearing cover 9.

[0034] By providing the bearing cover 9, the fastening block 8 can rotate on the telescopic rod.

[0035] A pair of countersunk holes 5 are symmetrically provided at both the upper and lower ends of the mounting plate 1, and the mounting plate 1 is fixed to the wall by screws 15 inserted into the countersunk holes 5.

[0036] By providing the countersunk holes 5 and the screws 15, the mounting plate 1 is fixedly installed on the classroom wall.

[0037] Working principle: When installing the loudspeaker, the mounting plate 1 is fixed to the wall of the classroom by screws 15 inserted into the countersunk holes 5. The loudspeaker body 2 is pressed against the upper surface of the support block 3 through the inner groove 11. The support block 3 provides a supporting force for the loudspeaker body 2 in the vertical direction. The fastening block 8 presses the inner side of the fastening block 8 against the connection surface of the through groove 14 and the inner groove 11 through the spring 12 in the telescopic rod. The loudspeaker body 2 receives an elastic force in the horizontal direction. At the same time, the fastening block 8 is rotated to a certain angle so that the limiting block 7 is clamped in the limiting groove 10 to improve the stability of the fastening block 8, realizing the installation of the loudspeaker body 2. When the loudspeaker fails or needs to be cleaned, the limiting block 7 is pulled out of the limiting groove 10 and the fastening block 8 is rotated to a certain angle so that the fastening block 8 faces the inner groove 11, realizing the disassembly of the loudspeaker body 2.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A teaching loudspeaker that is easy to install and disassemble, characterized in that: The teaching loudspeaker that is easy to install and disassemble comprises: A mounting plate (1), wherein a support block (3) is arranged on the mounting plate (1), an inner hole (4) is arranged on a side wall of the support block (3), a plug-in telescopic rod is arranged in the inner hole (4), and a rotatably mounted fastening block (8) is arranged on the outer side of the telescopic rod; A loudspeaker body (2), wherein an inner groove (11) is symmetrically arranged at the rear end of the loudspeaker body (2), through grooves (14) are arranged at both upper and lower ends of the loudspeaker body (2), the inner groove (11) is directly opposite to the through groove (14), the height of the inner groove (11) is greater than the height of the support block (3), the length of the fastening block (8) is greater than the height of the inner groove (11), and the thickness of the fastening block (8) is less than the width of the through groove (14); The loudspeaker body (2) is mounted on the mounting plate (1) via an inner groove (11).

2. The teaching loudspeaker that is easy to install and disassemble according to claim 1, characterized in that: The telescopic rod comprises a sleeve (6), a sleeve rod (13) and a spring (12); the sleeve rod (13) is inserted into the sleeve (6); one end of the sleeve rod (13) is connected to the mounting plate (1); the other end of the sleeve rod (13) is connected to the spring (12); and the other end of the spring (12) is fixed to the inner wall of the sleeve (6).

3. The teaching loudspeaker that is easy to install and disassemble according to claim 1 is characterized by: The upper surface of the inner groove (11) is pressed onto the upper surface of the support block (3).

4. The teaching loudspeaker that is easy to install and disassemble according to claim 1, characterized in that: The inner wall of the fastening block (8) is pressed onto the connecting surface between the through groove (14) and the inner groove (11).

5. The teaching loudspeaker that is easy to install and disassemble according to claim 1, characterized in that: A limiting groove (10) is arranged on the connecting surface of the inner groove (11) and the through groove (14), the limiting groove (10) is directly opposite to the inner groove (11) and the through groove (14), and a limiting block (7) is arranged on the inner side of the fastening block (8), the limiting block (7) is clamped in the limiting groove (10).

6. The teaching loudspeaker that is easy to install and disassemble according to claim 1, characterized in that: A bearing cover (9) is arranged on the outside of the fastening block (8), and the fastening block (8) is rotatably mounted on the telescopic rod through the bearing cover (9).

7. The teaching loudspeaker that is easy to install and disassemble according to claim 1, characterized in that: A pair of countersunk holes (5) are symmetrically arranged at the upper and lower ends of the mounting plate (1), and the mounting plate (1) is fixed to the wall by screws (15) inserted into the countersunk holes (5).

Images