Sound box with good noise reduction effect

Abstract

The utility model discloses a sound box with a good noise reduction effect, belongs to the technical field of sound box noise reduction, and aims to solve the problems that in the prior art, the downward pressing amplitude of a lower suction cup is not enough, a sound box equipment main body easily topples over, and the vibration absorption effect of the suction cup is poor. Comprising a main machine, a fixing block is installed at the end of the upper end of the main machine, the upper end of the fixing block is semicircular, two sets of symmetrically-distributed round holes are formed in the fixing block, the main machine is movably connected with a dustproof assembly through the round holes, and a vibration and noise reduction assembly is movably connected to the lower end of the main machine and comprises a bottom block; a plurality of sets of evenly-distributed fixing rods are installed in the through holes, second springs are installed in the fixing rods, pressing plates are clamped to the fixing rods in a sliding mode, and the other ends of the second springs are installed on the pressing plates. The sound box with the good noise reduction effect can effectively absorb vibration generated by the loudspeaker, thereby preventing noise generated by vibration of the sound box from interfering normal use of the sound box.

Description

Technical Field

[0001] The utility model belongs to the technical field of sound box noise reduction, and in particular relates to a sound box with good noise reduction effect. Background Art

[0002] A speaker is a device that can convert audio signals into sound. A speaker is usually composed of two basic parts: a speaker unit (technically called a speaker unit) and a cabinet. During indoor meetings, speakers are often placed directly on the table to diffuse the sound. Speakers placed on the table vibrate on the table, thereby generating some noise, which will interfere with the normal use of the speaker.

[0003] Chinese patent CN218124853U discloses a noise-reducing multifunctional conference speaker, comprising a main speaker and a secondary speaker; the secondary speaker is slidably connected to a through hole opened on the right side of the main speaker through a storage rack; a suction cup is provided at the center of the bottom surface of the main speaker, and the main speaker is fixedly connected to the work surface through the suction cup.

[0004] The above patent discloses a noise-reducing multifunctional conference speaker, which uses a suction cup to fix the speaker on a desktop. When in use, the suction cup needs to be pressed down to expel the air. If the downward pressure is not enough, the air may not be discharged completely, thereby reducing the suction force of the suction cup, which may easily cause the speaker device body to tip over. When the suction cup is used to absorb vibration, the thickness of the suction cup sheet is relatively thin, and the vibration absorption effect is poor. Therefore, a technical measure is proposed to solve the problem that the suction cup is not pressed down enough, which may easily cause the speaker device body to tip over and the suction cup has a poor effect in absorbing vibration. Summary of the invention

[0005] (1) Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the purpose of the present invention is to provide a speaker with good noise reduction effect, aiming to solve the problem that the suction cup in the prior art does not press down sufficiently, which easily causes the speaker device body to topple over, and the suction cup has a poor effect in absorbing vibration.

[0007] (2) Technical solution

[0008] In order to solve the above technical problems, the utility model provides a speaker with good noise reduction effect, including a main unit, a fixing block is installed at the upper end of the main unit, the upper end of the fixing block is semicircular, the fixing block is provided with two groups of symmetrically distributed circular holes, the main unit is movably connected with a dustproof component through the circular holes, and the lower end of the main unit is movably connected with a vibration reduction and noise reduction component, the vibration reduction and noise reduction component includes a bottom block, a through hole is opened at the center of the bottom block, a plurality of groups of evenly distributed fixing rods are installed in the through holes, a second spring is installed inside the fixing rod, a pressure plate is slidably engaged with the fixing rod, the other end of the second spring is installed on the pressure plate, a round rod is connected to the side of the pressure plate away from the second spring, the other end of the round rod is connected to a butt plate, and the butt plate is butted against a mounting plate. Thanks to the setting of the vibration reduction and noise reduction component, the vibration reduction effect is improved, and the problem of the speaker vibrating on the desktop to generate noise interfering with the normal use of the speaker is avoided.

[0009] Furthermore, a heat dissipation hole is opened at the upper end of the side of the host, a handle is installed on the upper surface of the host, and a screw is provided at the center position of the lower surface of the host. Thanks to the setting of the handle, the host is convenient to move.

[0010] Furthermore, the dustproof component includes a dustproof plate, which is L-shaped. A slot is provided at the horizontal end of the dustproof plate to slide with the fixed block, and two groups of jacks corresponding to the positions of the round holes are provided on the side of the slot. Thanks to the setting of the dustproof component, dust can be effectively prevented from falling on the speaker when the speaker is not in use, thereby preventing dust accumulation from causing the speaker to have low sound, popping sound, or even no sound.

[0011] Furthermore, a first spring is installed at the center position of the side surface of the horizontal end of the dustproof plate, and the other end of the first spring is connected to a pull plate. Two groups of symmetrically distributed connecting rods are installed on the side of the pull plate close to the dustproof plate. The first spring is in the middle of the two groups of connecting rods, and a plug is installed at the end of the connecting rod away from the pull plate. Thanks to the setting of the first spring, after the dustproof plate is inserted into the fixing block, the pull plate is released, and the first spring rebounds to drive the plug to be inserted into the round hole, which is convenient for fixing the dustproof plate.

[0012] Furthermore, the connecting rod, the plug and the socket are slidably matched, and the plug and the round hole are slidably matched.

[0013] Furthermore, the vibration damping and noise reduction component also includes a circular block, which is installed inside the bottom block. The size of the through hole is smaller than the circular block. The circular block is in sliding contact with the bottom block. The mounting plate is fixedly installed at the center position of the upper surface of the circular block. A spiral tube is installed on the upper surface of the mounting plate. Thanks to the coordinated use of the spiral tube and the screw rod, the vibration damping and noise reduction component can be easily replaced.

[0014] Furthermore, the spiral tube is adapted to the screw thread, and a rubber base is fixedly installed on the lower surface of the bottom block. Thanks to the setting of the rubber base, it is convenient to further absorb vibration.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model effectively prevents dust from falling on the speaker when the speaker is not in use by setting the dustproof component, and prevents dust accumulation from causing the speaker to have low sound, popping sound, or even no sound. The plug is retracted into the jack by pulling the pull plate outward, and then the dustproof plate is aligned with the fixing block and snapped into place. Finally, the pull plate is released, and the first spring rebounds to drive the plug into the round hole to complete the fixation.

[0018] By setting up the vibration reduction and noise reduction component, the problem of poor vibration absorption and vibration reduction effect of the suction cup is solved. The vibration is first transmitted to the mounting plate, and then to the abutment plate, the round rod, the pressure plate, and then to the second spring, where it is effectively absorbed by the second spring. Then the remaining vibration is absorbed by the rubber base. By using the screw tube and the screw rod in coordination, when the vibration reduction effect of the vibration reduction and noise reduction component decreases (due to aging of the rubber, metal fatigue of the second spring, and other problems), the vibration reduction and noise reduction component can be easily replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the utility model in a separated state;

[0022] Figure 3 It is a schematic diagram of the main body side structure;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the dustproof component;

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of the vibration and noise reduction component;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure connecting the fixed rod, the round rod and the abutment plate.

[0026] The marks in the attached drawings are: 1. main unit; 2. dustproof component; 3. vibration reduction and noise reduction component; 4. heat dissipation hole; 5. handle; 6. fixing block; 7. round hole; 8. screw; 201. dustproof plate; 202. jack; 203. slot; 204. first spring; 205. plug; 206. pull plate; 207. connecting rod; 301. bottom block; 302. rubber base; 303. through hole; 304. round block; 305. mounting plate; 306. screw; 307. fixing rod; 308. pressure plate; 309. second spring; 310. push plate; 311. round rod. DETAILED DESCRIPTION

[0027] 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.

[0028] This specific implementation is a sound box with good noise reduction effect, and its structural schematic diagram is as follows Figure 1 , Figure 2 , Figure 3 As shown, it includes a host 1, a fixing block 6 is installed at the upper end of the host 1, the upper end of the fixing block 6 is semicircular, the fixing block 6 is provided with two groups of symmetrically distributed circular holes 7, the host 1 is movably connected to a dustproof component 2 through the circular holes 7, the lower end of the host 1 is movably connected to a vibration reduction and noise reduction component 3, a heat dissipation hole 4 is provided at the upper end of the side of the host 1, a handle 5 is installed on the upper surface of the host 1, and a screw 8 is provided at the center of the lower surface of the host 1.

[0029] Reference Figure 2 , Figure 4As shown, the dustproof assembly 2 includes a dustproof plate 201, which is L-shaped. A slot 203 that is slidably adapted to the fixed block 6 is opened at the horizontal end of the dustproof plate 201, and two groups of plug holes 202 corresponding to the positions of the round holes 7 are opened on the side of the slot 203. A first spring 204 is installed at the center position of the side of the horizontal end of the dustproof plate 201, and a pull plate 206 is connected to the other end of the first spring 204. Two groups of symmetrically distributed connecting rods 207 are installed on the side of the pull plate 206 close to the dustproof plate 201. The first spring 204 is in the middle of the two groups of connecting rods 207, and a plug 20 is installed on the end of the connecting rod 207 away from the pull plate 206. 5. The connecting rod 207, the plug 205 and the socket 202 are slidably fitted, the plug 205 and the round hole 7 are slidably fitted, the dustproof component 2 is opened, and the pull plate 206 is pulled to move toward the direction close to the handle 5. When the pull plate 206 moves horizontally, the first spring 204 is stretched. The pull plate 206 moves horizontally and simultaneously drives the connecting rod 207 to move horizontally. The connecting rod 207 moves horizontally and drives the plug 205 to move horizontally. The plug 205 moves horizontally and detaches from the socket 202. Then, the dustproof plate 201 is lifted up to release the dustproof effect of the dustproof plate 201 on the speaker of the host 1, and the dustproof component 2 is placed in a suitable position.

[0030] Reference Figure 2 , Figure 5 , Figure 6As shown, the vibration reduction and noise reduction component 3 includes a bottom block 301, a through hole 303 is opened at the center of the bottom block 301, a plurality of evenly distributed fixing rods 307 are installed in the through hole 303, a second spring 309 is installed inside the fixing rod 307, a pressure plate 308 is slidably engaged with the fixing rod 307, the other end of the second spring 309 is installed on the pressure plate 308, a round rod 311 is connected to the side of the pressure plate 308 away from the second spring 309, the other end of the round rod 311 is connected to a butt plate 310, the butt plate 310 is abutted against a mounting plate 305, the vibration reduction and noise reduction component 3 also includes a circular block 304, the circular block 304 is installed inside the bottom block 301, the size of the through hole 303 is smaller than the circular block 304, the circular block 304 is in sliding contact with the bottom block 301, the mounting plate 305 is fixedly installed at the center of the upper surface of the circular block 304, a screw pipe 306 is installed on the upper surface of the mounting plate 305, the screw pipe 306 The rubber base 302 is fixedly mounted on the lower surface of the bottom block 301, which is threadedly adapted to the screw rod 8. The speaker vibrates in the vertical direction, and the vibration is transmitted to the host 1. Subsequently, the host 1 transmits the vibration to the rubber base 302 through the screw rod 8, the screw tube 306, the circular block 304 and the bottom block 301. The rubber base 302 absorbs the vertical vibration. When the speaker vibrates in the horizontal direction, the vibration is transmitted to the host 1. The host 1 transmits the vibration to the screw tube 306 through the screw rod 8. The screw tube 306 transmits the vibration to the mounting plate 305. The mounting plate 305 moves horizontally due to the vibration. When the mounting plate 305 moves horizontally, the push plate 310 is squeezed. The push plate 310 moves to squeeze the round rod 311. The round rod 311 moves to squeeze the pressure plate 308. The pressure plate 308 slides along the inside of the fixed rod 307. The pressure plate 308 moves to squeeze the second spring 309. The second spring 309 contracts to absorb the vibration force.

[0031] Working principle: When the speaker needs to be used, the host 1 is brought to the surface of the conference room table by the handle 5, and then the dustproof component 2 is opened (when the speaker is not in use, dust is effectively prevented from falling on the speaker, and dust accumulation is prevented from causing the speaker to have low sound, popping sound, or even no sound). The specific method is to pull the pull plate 206 to move in the direction close to the handle 5, and the pull plate 206 stretches the first spring 204 when it moves horizontally. The pull plate 206 moves horizontally and simultaneously drives the connecting rod 207 to move horizontally. The connecting rod 207 moves horizontally and drives the plug 205 to move horizontally. The plug 205 moves horizontally and detaches from the socket 202. Then, the dustproof plate 201 is lifted up to release the dustproof effect of the dustproof plate 201 on the speaker of the host 1, and the dustproof component 2 is placed in a suitable position.

[0032] After the host 1 is started, the speaker vibrates. Specifically, the speaker vibrates, and the vibration is transmitted to the host 1. The host 1 transmits the vibration to the screw tube 306 through the screw rod 8. The screw tube 306 transmits the vibration to the mounting plate 305. The mounting plate 305 moves horizontally due to the vibration (the amplitude of the vibration is small, the moving distance is also small, the circular block 304 is in sliding contact with the inside of the bottom block 301, and the distance between the circular block 304 and the inner wall of the bottom block 301 is also small). When the mounting plate 305 moves horizontally, it squeezes the plate 310, and the plate 310 moves to squeeze the round rod 311. The round rod 311 moves to squeeze the pressing plate 308, and the pressing plate 308 slides inside the fixing rod 307. The pressing plate 308 moves to squeeze the second spring 309, and the second spring 309 contracts to absorb the vibration force. The remaining vibration is transmitted to the round block 304, and the bottom block 301 transmits the vibration to the rubber base 302. The rubber base 302 absorbs the vibration, effectively preventing the vibration of the speaker from driving the host 1 to vibrate on the desktop and generating noise, thereby avoiding the problem of noise interfering with the normal use of the speaker. After use, the dustproof component 2 is reinstalled on the host 1, and then the host 1 is taken away;

[0033] When the vibration reduction effect of the vibration reduction and noise reduction component 3 decreases, the vibration reduction and noise reduction component 3 can be replaced with a new one by screwing the vibration reduction and noise reduction component 3 out of the main body 1 .

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A sound box with good noise reduction effect, comprising a main unit (1), characterized in that: A fixing block (6) is installed at the upper end of the main machine (1); the upper end of the fixing block (6) is semicircular, and the fixing block (6) is provided with two groups of symmetrically distributed circular holes (7); the main machine (1) is movably connected to a dustproof component (2) through the circular holes (7); and the lower end of the main machine (1) is movably connected to a vibration reduction and noise reduction component (3); The vibration reduction and noise reduction component (3) comprises a bottom block (301), a through hole (303) is provided at the center of the bottom block (301), a plurality of groups of evenly distributed fixing rods (307) are installed in the through holes (303), a second spring (309) is installed inside the fixing rod (307), a pressing plate (308) is slidably engaged with the fixing rod (307), the other end of the second spring (309) is installed on the pressing plate (308), a round rod (311) is connected to the side of the pressing plate (308) away from the second spring (309), the other end of the round rod (311) is connected to a butt plate (310), and the butt plate (310) is butted against the mounting plate (305).

2. A sound box with good noise reduction effect according to claim 1, characterized in that: A heat dissipation hole (4) is provided at the upper end of the side surface of the main machine (1), a handle (5) is installed on the upper surface of the main machine (1), and a screw (8) is provided at the center position of the lower surface of the main machine (1).

3. A sound box with good noise reduction effect according to claim 2, characterized in that: The dustproof assembly (2) comprises a dustproof plate (201), the dustproof plate (201) being L-shaped, a slot (203) slidably matched with the fixing block (6) being provided at a horizontal end of the dustproof plate (201), and two groups of plug holes (202) corresponding to the positions of the circular holes (7) being provided on the side of the slot (203).

4. A sound box with good noise reduction effect according to claim 3, characterized in that: A first spring (204) is installed at the center position of the side surface of the horizontal end of the dustproof plate (201); the other end of the first spring (204) is connected to a pull plate (206); two groups of symmetrically distributed connecting rods (207) are installed on the side surface of the pull plate (206) close to the dustproof plate (201); the first spring (204) is located between the two groups of connecting rods (207); and a plug (205) is installed on one end of the connecting rod (207) away from the pull plate (206).

5. A sound box with good noise reduction effect according to claim 4, characterized in that: The connecting rod (207), the plug (205) and the socket (202) are slidably matched, and the plug (205) and the round hole (7) are slidably matched.

6. A sound box with good noise reduction effect according to claim 5, characterized in that: The vibration reduction and noise reduction component (3) further comprises a circular block (304), the circular block (304) being mounted inside the bottom block (301), the through hole (303) being smaller than the circular block (304), the circular block (304) being in sliding contact with the bottom block (301), the mounting plate (305) being fixedly mounted at the center position of the upper surface of the circular block (304), and a screw tube (306) being mounted on the upper surface of the mounting plate (305).

7. A sound box with good noise reduction effect according to claim 6, characterized in that: The spiral tube (306) is threadably matched with the screw rod (8), and a rubber base (302) is fixedly mounted on the lower surface of the bottom block (301).

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