Detachable broadcast sound box

Abstract

The utility model relates to the technical field of sound boxes, and provides a detachable broadcast sound box, which comprises a mounting plate and a broadcast sound box body arranged on one side of the mounting plate, and further comprises a plurality of fixing blocks I fixedly mounted at four corners of the mounting plate respectively. According to the utility model, the motor is controlled by the controller to start, the output shaft of the motor drives the screw rod to rotate, and then the screw rod and the threaded ring are in threaded fit, so that the threaded ring can move towards one side along the outer surface of the screw rod, and the rotating rod II and the rotating rod I synchronously rotate at a proper angle; when the broadcasting loudspeaker box body is rotated, the broadcasting loudspeaker box body and the movable block are driven to rotate by a proper angle around the outer surface of the round rod, so that the broadcasting loudspeaker box body is adjusted to a proper inclination angle, the inclination angle of the broadcasting loudspeaker box body can be adjusted according to the actual terrain of a mining area, and the sound transmission distance of the broadcasting loudspeaker box body is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of sound boxes, in particular to a detachable broadcasting sound box. Background Art

[0002] Broadcast speakers (also known as public address speakers or PA speakers) are audio devices used in public places, schools, office buildings, shopping malls, airports, train stations, etc., mainly used to play announcements, music, emergency information, etc. They are often used in conjunction with public address systems to ensure that information can be clearly conveyed to a wide audience.

[0003] In the prior art, for example, the Chinese patent number CN209218290U is a dustproof broadcasting speaker for mining, which solves the shortcomings of the prior art that it is inconvenient to disassemble and assemble and that falling gravel can easily damage the equipment. The speaker comprises a wall panel, a first protective plate, a second protective plate, a dustproof net and a fixing plate. The wall panel is fixed to one side of the mine wall by welding, and a connecting block is welded on one side of the wall panel, and a fixing rod is welded and fixed on one side of the connecting block. A mounting plate is fixed to the top of the fixing rod by a locking nut. A through hole is provided at one end of the mounting plate, and the through hole is sleeved on the top of the fixing rod, and limit rods are movably provided on both sides of the through hole, one end of the limit rod is inserted into the side wall groove of the fixing rod, and a limit plate is provided on the middle side of the limit rod. The utility model is not only convenient for the staff to install and disassemble, but also can prevent the falling gravel from damaging the speaker and the protective plate.

[0004] Although the above scheme has the advantages as mentioned above, the disadvantage of the above scheme is that: although it can be achieved by putting the through hole of the mounting plate on the fixed rod, and making the limit rod bounce into the side wall groove of the fixed rod when the mounting plate is lowered to the upper end of the connecting block, and then firmly fixing the mounting plate and the fixed rod by putting on the locking nut, the structure is simple and convenient for the staff to install and disassemble, but the angle of its broadcasting speaker is relatively fixed and cannot be properly adjusted according to the actual terrain of the mining area, which may lead to the limitation of the sound propagation distance of the broadcasting speaker, and the dust net is installed with bolts. When the dust net needs to be disassembled and cleaned, tools need to be used to unscrew the bolts one by one. This process is time-consuming and labor-intensive, resulting in low efficiency in disassembly of the dust net. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that although the through hole of the mounting plate can be put on the fixing rod, and the limiting rod is made to pop into the side wall groove of the fixing rod when the mounting plate is lowered to the upper end of the connecting block, and then the mounting plate and the fixing rod are firmly fixed by putting on the locking nut, the structure is simple and convenient for the staff to install and disassemble, but the angle of the broadcasting speaker is relatively fixed and cannot be properly adjusted according to the actual terrain of the mining area, which may result in the distance of sound propagation of the broadcasting speaker being limited, and the dustproof net is installed by bolts. When the dustproof net needs to be disassembled and cleaned, tools need to be used to unscrew the bolts one by one. This process is time-consuming and labor-intensive, resulting in low efficiency in disassembling the dustproof net.

[0006] In order to achieve the above object, the utility model adopts the following technical solution: a detachable broadcasting speaker, comprising: a mounting plate and a broadcasting speaker body, wherein the broadcasting speaker body is arranged on one side of the mounting plate, and further comprising:

[0007] A plurality of fixed blocks are respectively fixedly mounted at the four corners of the mounting plate, wherein two of the fixed blocks are fixedly mounted with round rods on opposite sides of the two fixed blocks, and two movable blocks are symmetrically fixedly mounted on the outer surface of the round rod, and one side of the two movable blocks is symmetrically fixedly mounted on the side of the broadcast speaker body near the bottom, and the other two fixed blocks are movably embedded with rotating rods on the opposite sides of the two fixed blocks, and one end of the two rotating rods is fixedly mounted with square blocks, and a screw rod is movably embedded in the center of the square blocks, and the broadcast speaker body is symmetrically fixedly mounted with two fixed blocks two near the top of the mounting plate, and the opposite side of the two fixed blocks two is movably embedded with rotating rods two, and one end of the two rotating rods two is fixedly mounted with threaded rings, and the inner wall of the threaded ring is threadedly sleeved on the outer surface of the screw rod, and a motor is fixedly mounted on one side of the block, and the output end of the motor is fixedly mounted on one end of the screw rod.

[0008] Preferably, a movable sleeve on one side of the broadcast speaker body is provided with a dustproof net, and a fixing strip 1 is fixedly installed on the opposite side of the dustproof net, and a plurality of limit hooks are fixedly installed at equal distances on the opposite sides of the two fixing strips 1.

[0009] Preferably, a fixing bar 2 is fixedly installed on the opposite side of the broadcast speaker body close to the dustproof net, and a plurality of movable rods are equidistantly embedded on one side of the two fixing bars 2, and a suction cup is fixedly installed on one end of the plurality of movable rods.

[0010] Preferably, the plurality of movable rods are evenly divided into two groups, one end of each of the two groups of movable rods is fixedly mounted with a movable bar, and one side of each of the two movable bars is provided with an inclined surface.

[0011] Preferably, the outer surfaces of the multiple movable rods are movably sleeved with compression springs, and the multiple compression springs are evenly divided into two groups, one end of the two groups of compression springs are respectively fixedly installed on one side of the two fixed bars, and the other end of the two groups of compression springs are respectively fixedly installed on the other side of the two movable bars.

[0012] Preferably, the material used for the plurality of limit hooks is elastic plastic, and one side of the plurality of limit hooks is provided with a second inclined surface.

[0013] Preferably, a limiting ring is fixedly sleeved on one end of the screw rod away from the block.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are:

[0015] 1. The utility model controls the motor to start through the controller so that its output shaft drives the screw to rotate. Then, under the action of the screw and the threaded ring, the threaded ring can be moved to one side along the outer surface of the screw, and the rotating rod 2 is rotated to an appropriate angle synchronously, and the rotating rod 1 is rotated to an appropriate angle, driving the broadcast speaker body and the movable block to rotate around the outer surface of the round rod at an appropriate angle, so that the broadcast speaker body is adjusted to a suitable inclination angle. In this way, the inclination angle of the broadcast speaker body can be adjusted according to the actual terrain of the mining area, thereby increasing the sound propagation distance of the broadcast speaker body.

[0016] 2. In the present invention, the limit hook is moved to one side by hand to release the limit on the movable bar. At this time, the movable bar moves to the side away from the fixed bar 1 under the restoring force of the compression spring, so that the movable rod slides and applies a pulling force to the suction cup, so that the suction cup is separated from the fixed bar 1, and the limit on the dust screen is released. At this time, the dust screen can be removed. When it needs to be installed, the movable bar can be pushed to the side of the dust screen, so that the movable rod and the suction cup slide to one side, and the compression spring is compressed synchronously. At this time, the dust screen is buckled on the upper part of the broadcast speaker body, so that the fixed bar 1 contacts the suction cup. And squeeze it so that the suction cup is adsorbed on the fixed strip one, and the inclined surface two of the limiting hook contacts the inclined surface one of the movable strip, causing the limiting hook to deform. When the inclined surface one is detached from the position of the inclined surface two, the movable strip is released again, so that it moves to the side away from the fixed strip one under the restoring force of the compression spring, and is pressed against the hook angle position of the limiting hook. The movable strip is limited by the limiting hook, so that the dustproof net can be tightly and buckled on the top of the radio speaker body, so that the dustproof net can be easily disassembled and installed, thereby facilitating the cleaning of the dustproof net, thereby improving the efficiency of the dustproof net cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a detachable broadcast speaker provided by the utility model;

[0018] Figure 2 A side structural diagram of a detachable broadcast speaker provided by the utility model;

[0019] Figure 3 This is a schematic diagram of the upward structure of a detachable broadcast speaker provided by the utility model;

[0020] Figure 4 The utility model provides a detachable broadcast speaker Figure 3 Enlarged structural diagram at point A in the middle.

[0021] Legend:

[0022] 1. Mounting plate; 101. Fixed block 1; 102. Round rod; 103. Movable block; 104. Rotating rod 1; 105. Block; 106. Screw; 107. Fixed block 2; 108. Rotating rod 2; 109. Limiting ring; 110. Threaded ring; 111. Motor; 2. Radio speaker body; 201. Dustproof net; 202. Fixed strip 1; 203. Limiting hook; 204. Fixed strip 2; 205. Movable strip; 206. Movable rod; 207. Suction cup; 208. Compression spring. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1, as Figure 1-4As shown, the utility model provides a detachable broadcasting speaker, comprising: a mounting plate 1 and a broadcasting speaker body 2, the broadcasting speaker body 2 being arranged on one side of the mounting plate 1, and further comprising: a plurality of fixing blocks 101, respectively fixedly mounted at the four corners of the mounting plate 1, wherein a round rod 102 is fixedly mounted on the opposite side of two fixing blocks 101, and two movable blocks 103 are symmetrically fixedly mounted on the outer surface of the round rod 102, one side of the two movable blocks 103 is symmetrically fixedly mounted on the side of the broadcasting speaker body 2 near the bottom, and the opposite sides of the other two fixing blocks 101 are both movably embedded with a rotating rod 1 104, one end of the two rotating rods 104 are fixedly installed with a block 105, and a screw rod 106 is movably embedded in the center of the block 105. Two fixed blocks 107 are symmetrically fixedly installed on the top of the broadcast speaker body 2 near the mounting plate 1, and the opposite sides of the two fixed blocks 107 are movably embedded with rotating rods 108. One end of the two rotating rods 108 is fixedly installed with a threaded ring 110, and the inner wall of the threaded ring 110 is threadedly sleeved on the outer surface of the screw rod 106. A motor 111 is fixedly installed on one side of the block 105, and the output end of the motor 111 is fixedly installed on one end of the screw rod 106.

[0026] Further, such as Figure 1-4 As shown, a dust-proof net 201 is provided on one side of the broadcast speaker body 2, and a fixing strip 202 is fixedly installed on the opposite side of the dust-proof net 201. A plurality of limiting hooks 203 are fixedly installed at equal intervals on the opposite sides of the two fixing strips 202. Through the setting of the limiting hooks 203, the dust-proof net 201 can be tightly buckled on the top of the broadcast speaker body 2.

[0027] Further, such as Figure 1-4 As shown, a fixing bar 204 is fixedly installed on the opposite side of the broadcast speaker body 2 close to the dustproof net 201, and a plurality of movable rods 206 are equidistantly and movably embedded on one side of the two fixing bars 204. A suction cup 207 is fixedly installed at one end of the plurality of movable rods 206. Through the setting of the suction cup 207, the suction cup 207 can be conveniently adsorbed on the fixing bar 1 202.

[0028] Further, such as Figure 1-4 As shown, multiple movable rods 206 are evenly divided into two groups, and one end of the two groups of movable rods 206 is fixedly installed with a movable bar 205. One side of the two movable bars 205 is provided with a slope. Through the above-mentioned setting, when the movable bar 205 is pushed, it is convenient to drive multiple movable rods 206 to slide to one side.

[0029] Further, such as Figure 1-4As shown, the outer surfaces of the multiple movable rods 206 are movably sleeved with compression springs 208, and the multiple compression springs 208 are evenly divided into two groups. One end of the two groups of compression springs 208 are respectively fixedly installed on one side of the two fixed bars 204, and the other ends of the two groups of compression springs 208 are respectively fixedly installed on the other side of the two movable bars 205. Under the reset force of the compression spring 208, the movable bar 205 can be pressed against the hook angle position of the limit hook 203.

[0030] Further, such as Figure 1-4 As shown, the material used for the multiple limit hooks 203 is elastic plastic, and one side of the multiple limit hooks 203 is provided with a second inclined surface. Through the above-mentioned setting, when the second inclined surface of the limit hook 203 contacts the first inclined surface of the movable bar 205, the limit hook 203 is conveniently subjected to a reverse force and deformed.

[0031] Further, such as Figure 1-4 As shown, a limiting ring 109 is fixedly sleeved on one end of the screw rod 106 away from the block 105 , and the limiting ring 109 serves to limit the threaded ring 110 .

[0032] Working principle: When in use, the device is fixedly installed on the wall of the mine area with the cooperation of the bolts and the mounting plate 1, and then the motor 111 is started by the controller, so that its output shaft drives the screw rod 106 to rotate, and then under the action of the screw rod 106 and the threaded ring 110 threaded cooperation, the threaded ring 110 can move to one side along the outer surface of the screw rod 106, synchronously making the rotating rod 2 108 rotate an appropriate angle, making the rotating rod 1 104 rotate an appropriate angle, driving the broadcast speaker body 2 and the movable block 103 to rotate an appropriate angle around the outer surface of the round rod 102, so that the broadcast speaker The box body 2 is adjusted to a suitable inclination angle, so that the inclination angle of the broadcast speaker body 2 can be adjusted according to the actual terrain of the mining area, thereby increasing the sound propagation distance of the broadcast speaker body 2. When the dustproof net 201 needs to be disassembled and cleaned, the limit hook 203 is moved to one side by hand to release the limit on the movable bar 205. At this time, the movable bar 205 moves to the side away from the fixed bar 202 under the restoring force of the compression spring 208, causing the movable rod 206 to slide, applying a pulling force to the suction cup 207, so that the suction cup 207 and the fixed bar The dust screen 201 is disengaged from the first one 202, and the limit of the dust screen 201 is released. At this time, the dust screen 201 can be removed. When it needs to be installed, the movable bar 205 can be pushed to the side of the dust screen 201, so that the movable rod 206 and the suction cup 207 slide to one side, and the compression spring 208 is compressed synchronously. At this time, the dust screen 201 is buckled on the top of the broadcast speaker body 2, so that the fixing bar 202 contacts the suction cup 207 and squeezes it so that the suction cup 207 is adsorbed on the top of the fixing bar 202, and the inclined surface 2 of the limiting hook 203 is aligned with the inclined surface of the movable bar 205. Once in contact, the limiting hook 203 is deformed. When the inclined plane 1 is disengaged from the inclined plane 2, the movable bar 205 is released, so that it moves to the side away from the fixed bar 1 202 under the restoring force of the compression spring 208, and presses against the hook angle position of the limiting hook 203. The movable bar 205 is limited by the limiting hook 203, so that the dustproof net 201 can be tightly and buckled on the top of the broadcast speaker body 2, so that the dustproof net 201 can be easily disassembled and installed, thereby facilitating the cleaning of the dustproof net 201 and thereby improving the cleaning efficiency of the dustproof net 201.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A detachable broadcast speaker, comprising: A mounting plate (1) and a broadcasting speaker body (2), wherein the broadcasting speaker body (2) is arranged on one side of the mounting plate (1), and is characterized in that it further comprises: A plurality of fixed blocks (101) are fixedly mounted at the four corners of the mounting plate (1), wherein a round rod (102) is fixedly mounted on the opposite side of two of the fixed blocks (101), and two movable blocks (103) are symmetrically fixedly mounted on the outer surface of the round rod (102), and one side of the two movable blocks (103) is symmetrically fixedly mounted on the side of the broadcasting speaker body (2) near the bottom, and a rotating rod (104) is movably embedded on the opposite side of the other two fixed blocks (101), and a square block (105) is fixedly mounted on one end of the two rotating rods (104), and the square block (105) is fixedly mounted on the outer surface of the round rod (102). 5), a screw rod (106) is movably embedded in the center of the block (105), two fixed blocks (107) are symmetrically fixedly installed on the top of the broadcast speaker body (2) near the mounting plate (1), and two rotating rods (108) are movably embedded on opposite sides of the two fixed blocks (107), and one end of the two rotating rods (108) is fixedly installed with a threaded ring (110), and the inner wall of the threaded ring (110) is threadedly sleeved on the outer surface of the screw rod (106), and a motor (111) is fixedly installed on one side of the block (105), and the output end of the motor (111) is fixedly installed on one end of the screw rod (106).

2. The detachable broadcasting speaker according to claim 1, characterized in that: A dustproof net (201) is provided on one side of the broadcasting speaker body (2); a fixing strip (202) is fixedly installed on the opposite side of the dustproof net (201); and a plurality of limiting hooks (203) are fixedly installed at equal intervals on the opposite sides of the two fixing strips (202).

3. The detachable broadcasting speaker according to claim 2, characterized in that: The broadcast speaker body (2) is fixedly mounted with a second fixing bar (204) on the opposite side of the dustproof net (201), and a plurality of movable rods (206) are movably embedded at equal intervals on one side of the two second fixing bars (204), and a suction cup (207) is fixedly mounted on one end of the plurality of movable rods (206).

4. The detachable broadcasting speaker according to claim 3, characterized in that: The plurality of movable rods (206) are evenly divided into two groups, one end of each of the two groups of movable rods (206) is fixedly mounted with a movable bar (205), and one side of each of the two movable bars (205) is provided with an inclined surface.

5. The detachable broadcasting speaker according to claim 4, characterized in that: The outer surfaces of the plurality of movable rods (206) are movably sleeved with compression springs (208), and the plurality of compression springs (208) are evenly divided into two groups, one end of the two groups of compression springs (208) is respectively fixedly mounted on one side of the two fixed bars (204), and the other end of the two groups of compression springs (208) is respectively fixedly mounted on the other side of the two movable bars (205).

6. The detachable broadcasting speaker according to claim 2, characterized in that: The material used by the plurality of limit hooks (203) is elastic plastic, and one side of the plurality of limit hooks (203) is provided with a second inclined surface.

7. The detachable broadcasting speaker according to claim 1, characterized in that: A limiting ring (109) is fixedly sleeved on one end of the screw rod (106) away from the block (105).

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