Active noise automatic offset device

Abstract

The utility model discloses an active noise automatic counteracting device, and particularly relates to the sound insulation device technical field, including sound insulation board, concave block, bottom plate, concave block fixed at the bottom end of sound insulation board, the bottom plate is clamped on concave block bottom wall, the bottom plate is fixedly connected with the ground through bolt, the bottom plate is provided with the mounting groove, the mounting groove is equipped with the concave block, and the concave block is equipped with the mounting groove. A two-way threaded lead screw is rotationally connected into the mounting groove in a limiting mode, two movable plates are symmetrically connected to the outer side of the two-way threaded lead screw in a sleeving mode through threads, the back faces of the two movable plates are each fixedly connected with a clamping block, and inserting holes connected with the clamping blocks in a limiting and inserting mode are formed in the two sides of the concave block; through the arrangement of the structure, limiting and fixing of the bottom plate and the sound insulation plate can be achieved, and therefore the situation that when the sound insulation plate is collided in the construction process, the sound insulation plate moves on the bottom plate relatively, and the stability of connection between the bottom plate and the sound insulation plate is affected is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to sound insulation device technical field, more specifically, the utility model relates to a kind of active noise automatic cancellation device. BACKGROUND

[0002] In building energy-saving decoration, inevitable there will be electric drill drilling, nail hammering and other noises, affecting the home life of surrounding people, in order to reduce the decoration noise, usually install noise automatic cancellation device at decoration, and noise automatic cancellation device is generally spliced by multiple sound insulation boards, but the existing device has certain problems in use, and still needs continuous improvement.

[0003] After searching, the existing patent with publication number CN218492753U discloses a sound insulation device for building energy-saving decoration, which comprises a bottom plate, a plurality of concave blocks are slidably arranged on the bottom plate, the concave blocks are connected with sound insulation boards at the top ends, two housings are arranged on one side of the sound insulation boards, a fixed plate is arranged in the housings, springs are connected to the upper and lower sides of the fixed plate, the springs are connected with insertion columns, the insertion columns are exposed from the housings, pull rods are connected to one side of the insertion columns, one end of the pull rods passes through the side walls of the housings, and the pull rods are inserted into limiting grooves through the housings. By pulling the pull rods, the insertion columns are moved, and the upper and lower ends of the limiting grooves are correspondingly inserted, so that the insertion between the sound insulation boards is more stable. The concave blocks are slid on the bottom plate, which facilitates the installation and disassembly of the sound insulation boards. The dust absorption structure facilitates dust absorption during decoration and enhances the functionality of the device. The inventor found the following problems in the process of implementing the utility model:

[0004] When in use, the connection between the sound insulation boards and the bottom plate is achieved by the movable connection between the concave blocks fixed at the bottom ends of the bottom plate and the sound insulation boards. However, there is no fixing structure between the bottom plate and the concave blocks, so that the sound insulation boards can freely slide horizontally on the bottom plate. This may cause the sound insulation boards to move relatively on the bottom plate when they are impacted during the later construction process, thereby affecting the stability of the connection between the bottom plate and the sound insulation boards.

[0005] Therefore, an active noise automatic cancellation device is proposed to solve the problems in the background art. UTILITY MODEL CONTENTS

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides an active noise automatic cancellation device to solve the problems in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an active noise cancellation device, comprising a sound insulation board, a concave block, and a base plate. The concave block is fixedly disposed at the bottom end of the sound insulation board, and the base plate is engaged with the bottom wall of the concave block. The base plate is fixedly connected to the ground by bolts. An installation groove is provided on the base plate, and a bidirectional threaded rod is rotatably connected to the installation groove. Two movable plates are symmetrically threaded on the outer side of the bidirectional threaded rod. A locking block is fixedly connected to the back of each of the two movable plates. Insertion holes for engaging with the locking blocks are provided on both sides of the concave block.

[0008] Preferably, one end of the bidirectional threaded screw is fixedly connected to an adjusting knob for rotating the bidirectional threaded screw, and a clearance groove is provided on the surface of the base plate, with the adjusting knob being rotatably positioned within the clearance groove.

[0009] Preferably, a detachable first connecting seat is connected to one side of the sound insulation panel, and a detachable second connecting seat is connected to the other side of the sound insulation panel. Two connecting ports are symmetrically opened at the upper and lower positions on the front surface of the first connecting seat. A limiting port is opened inside the first connecting seat at the lower and upper bottom walls of the connecting ports, and the limiting port is connected and communicates with the connecting port.

[0010] Preferably, two connecting blocks are symmetrically and rotatably connected at the upper and lower positions of the side wall of the second connecting seat. Two mounting holes are symmetrically opened in each of the two connecting blocks. A limiting block that engages with the limiting port is slidably connected in each of the two mounting holes. A spring is fixedly connected in each of the two mounting holes.

[0011] Preferably, each of the two limiting blocks is fixedly connected to a lever for moving the limiting block, and the connecting block surface is symmetrically provided with two limiting grooves, and the two levers are slidably connected in the limiting grooves.

[0012] Preferably, the sound insulation board includes a stainless steel shell, sound insulation cotton, and a wooden sound-absorbing board. The stainless steel shell is fixedly installed on both sides of the wooden sound-absorbing board, and sound insulation cotton is installed on both sides of the wooden sound-absorbing board and between the two stainless steel shells.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] Compared with the prior art, the cooperation of the two-way threaded screw rod and the adjusting knob is increased, the two-way threaded screw rod is rotated through the adjusting knob, the two moving plates drive the two clamping blocks to move away from each other through the threaded driving of the rotating two-way threaded screw rod, the two clamping blocks are inserted into the insertion holes on the two sides of the concave block, and then the limiting and fixing of the concave block and the sound insulation plate fixed on the concave block are realized, the limiting and fixing of the bottom plate and the sound insulation plate can be realized through the arrangement of the structure, and when the sound insulation plate is collided during construction, the sound insulation plate can be prevented from moving on the bottom plate, and the stability of the connection between the bottom plate and the sound insulation plate is affected. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front perspective structural schematic view of the utility model.

[0016] Figure 2 It is a partial perspective exploded structural schematic view of the utility model.

[0017] Figure 3 It is a partial perspective structural schematic view of the utility model.

[0018] Figure 4 It is a partial perspective sectional structural schematic view of the utility model.

[0019] Figure 5 It is a sound insulation plate perspective structural schematic view of the utility model.

[0020] The figure mark is: 1, sound insulation plate;2, first connecting seat;3, second connecting seat;4, concave block;5, bottom plate;6, installation groove;7, two-way threaded screw rod;8, moving plate;9, adjusting knob;10, clamping block;11, insertion hole;12, avoiding groove;13, connecting port;14, spring;15, limiting port;16, connecting block;17, installation hole;18, limiting block;19, pushing rod;20, stainless steel plate shell;21, sound insulation cotton;22, wooden sound absorption plate. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model. EMBODIMENT

[0022] As the attached Figures 1 to 5The active noise automatic cancellation device shown comprises a soundproof board 1, a concave block 4 and a bottom plate 5, the concave block 4 is fixedly arranged at the bottom end of the soundproof board 1, the bottom plate 5 is clampedly arranged at the bottom wall of the concave block 4, the cross section of the bottom plate 5 is U-shaped, the U-shaped bottom plate 5 can be clampedly connected with the protrusion at the top end of the bottom plate 5, the bottom plate 5 is fixedly connected with the ground through bolts, the mounting groove 6 is formed in the bottom plate 5, the bidirectional screw rod 7 is rotationally connected in the mounting groove 6, one end of the bidirectional screw rod 7 is fixedly connected with the adjusting knob 9, the adjusting knob 9 is arranged to rotationally connect the bidirectional screw rod 7, the avoiding groove 12 is formed in the surface of the bottom plate 5, the adjusting knob 9 is rotationally arranged in the avoiding groove 12, the two moving plates 8 are symmetrically connected with the outer side of the bidirectional screw rod 7 through threads, one clamping block 10 is fixedly connected with each of the opposite surfaces of the two moving plates 8, and the insertion holes 11 are formed in the two sides of the concave block 4 and can be clampedly connected with the clamping blocks 10.

[0023] When in use, the bottom plate 5 is fixedly connected with the indoor ground to be decorated through bolts, the soundproof board 1 is clampedly arranged on the bottom plate 5 through the concave block 4 at the bottom, the bidirectional screw rod 7 is rotated through the adjusting knob 9, the two moving plates 8 are driven to move away from each other through the threads of the rotating bidirectional screw rod 7, the two clamping blocks 10 are inserted into the insertion holes 11 formed in the two sides of the concave block 4, and the concave block 4 and the soundproof board 1 fixedly arranged on the concave block 4 are clampedly connected. The bottom plate 5 and the soundproof board 1 are clampedly connected, so that the soundproof board 1 will not move on the bottom plate 5 when the soundproof board 1 is collided in the construction process, and the stability of the connection between the bottom plate 5 and the soundproof board 1 is affected. Embodiment

[0024] On the basis of embodiment 1, the scheme in embodiment 1 is further refined in combination with the specific working mode as follows: Figures 1 to 5 As shown, details are described as follows:

[0025] As a preferred embodiment, the sound insulation board 1 is connected with a detachable first connecting seat 2 on one side, and a detachable second connecting seat 3 on the other side, so that different lengths of sound insulation boards 1 can be selected according to actual construction process. Two connecting ports 13 are symmetrically provided on the front surface of the first connecting seat 2 at upper and lower positions, and a limiting port 15 is provided in the first connecting seat 2 and located at the upper and lower bottom walls of the connecting port 13. The limiting port 15 is connected and communicated with the connecting port 13. Two connecting blocks 16 are symmetrically and limitingly connected to the side wall of the second connecting seat 3 at upper and lower positions, and two installation holes 17 are symmetrically provided in the two connecting blocks 16. A limiting block 18 is slidably connected in each of the two installation holes 17 and engaged with the limiting port 15. A spring 14 is fixedly connected in each of the two installation holes 17, and a push rod 19 is fixedly connected to the surface of each of the two limiting blocks 18. The push rod 19 can be pushed to move the limiting block 18. Two limiting sliding grooves are symmetrically provided on the surface of the connecting block 16, and the two push rods 19 are slidably connected in the limiting sliding grooves. When connecting two sound insulation boards 1, the two limiting blocks 18 can be moved close to each other by sliding the two push rods 19. Then, the connecting block 16 on one sound insulation board 1 is engaged into the connecting port 13 on the other sound insulation board 1, and the two push rods 19 are released. At this time, the two springs 14 press the two limiting blocks 18 away from each other, and the two sound insulation boards 1 are fixedly connected by moving and inserting the limiting blocks 18 into the limiting port 15 provided at the upper and lower bottom walls of the connecting port 13. By rotating the connecting block 16 by 90 degrees, the two sound insulation boards 1 at the corner can be fixedly connected, improving the practicality of the device.

[0026] As a preferred embodiment, the sound insulation board 1 comprises a stainless steel plate shell 20, sound insulation cotton 21 and a wooden sound absorbing board 22. The wooden sound absorbing board 22 is fixedly provided with the stainless steel plate shell 20 on both sides, and the sound insulation cotton 21 is provided between the two stainless steel plate shells 20 on both sides of the wooden sound absorbing board 22. Further, the wooden sound absorbing board 22 and the sound insulation cotton 21 can cooperate to achieve sound insulation and sound absorption. The outermost stainless steel plate shell 20 can protect the wooden sound absorbing board 22 and the sound insulation cotton 21, preventing them from being damaged during construction, thereby affecting the overall sound insulation and sound absorption effect of the sound insulation board 1.

[0027] The working process of the utility model is as follows: firstly, the bottom plate 5 can be fixedly connected to the indoor floor to be decorated through the bolt during use, then the sound insulation board 1 is clamped to the bottom plate 5 through the bottom recessed block 4, then the two sound insulation boards 1 are fixedly connected, during connection, two limiting blocks 18 are slid through two dials 19, so that the two limiting blocks 18 are close to each other, then the connecting block 16 on one sound insulation board 1 is clamped into the connecting port 13 on the other sound insulation board 1, then the two dials 19 are released, at this time, the two springs 14 extrude the two limiting blocks 18 away from each other, and then the connecting block 16 is inserted into the limiting port 15 on the upper and lower bottom walls of the connecting port 13, so that the fixed connection between the two sound insulation boards 1 is realized, and the connecting block 16 is rotated to 90 degrees, so that the two sound insulation boards 1 at the corner can be fixedly connected, thereby improving the practicability of the device.

[0028] When the sound insulation board 1 on the bottom plate 5 needs to be limited and fixed, the two-way screw rod 7 can be rotated through the adjusting knob 9, then the two-way screw rod 7 is screwed to drive the two moving plates 8 to drive the two clamping blocks 10 away from each other, the two clamping blocks 10 away from each other are inserted into the insertion hole 11 on the two sides of the recessed block 4, thereby limiting and fixing the recessed block 4 and the sound insulation board 1 fixedly arranged on the recessed block 4, the structure can limit and fix the bottom plate 5 and the sound insulation board 1, so that when the sound insulation board 1 is collided during construction, the sound insulation board 1 will not move on the bottom plate 5, and the stability of the connection between the bottom plate 5 and the sound insulation board 1 is affected, and the working principle of the active noise automatic cancellation device is as above.

Claims

1. An active noise automatic cancellation device, comprising a soundproof board (1), a concave block (4), and a bottom plate (5), characterized in that: The concave block (4) is fixedly arranged at the bottom end of the sound insulation board (1), the bottom plate (5) is clamped on the bottom wall of the concave block (4), the bottom plate (5) is fixedly connected with the ground through bolts, the mounting groove (6) is arranged on the bottom plate (5), the bidirectional screw rod (7) is rotatably connected in the mounting groove (6), the two moving plates (8) are symmetrically connected outside the bidirectional screw rod (7), the clamping block (10) is fixedly connected to the back surface of the two moving plates (8), and the concave block (4) is provided with the insertion hole (11) on the two sides.

2. The active noise automatic cancellation device according to claim 1, wherein: One end of the bidirectional screw rod (7) is fixedly connected with the adjusting knob (9) for rotatably connecting the bidirectional screw rod (7), and the surface of the bottom plate (5) is provided with the avoiding groove (12), and the adjusting knob (9) is rotatably arranged in the avoiding groove (12).

3. The device according to claim 1, wherein: The sound insulation board (1) is connected with the detachable first connecting seat (2) on one side, the sound insulation board (1) is connected with the detachable second connecting seat (3) on the other side, the first connecting seat (2) is symmetrically provided with two connecting ports (13) on the upper and lower positions of the front surface, the first connecting seat (2) is provided with the limiting port (15) on the upper and lower bottom walls in the connecting port (13), and the limiting port (15) is connected with the connecting port (13).

4. The device according to claim 3, wherein: The second connecting seat (3) is symmetrically and limitingly rotatably connected with the two connecting blocks (16) on the upper and lower positions of the side wall, the two connecting blocks (16) are symmetrically provided with the two mounting holes (17) in the two connecting blocks (16), the two mounting holes (17) are slidably connected with the limiting block (18) clamped with the limiting port (15), and the two mounting holes (17) are fixedly connected with the spring (14).

5. The device according to claim 4, wherein: The surface of the two limiting blocks (18) is fixedly connected with the poking rod (19) for poking the limiting block (18), and the surface of the connecting block (16) is symmetrically provided with the two limiting sliding grooves, and the two poking rods (19) are slidably connected in the limiting sliding grooves.

6. The device of claim 1, wherein: The sound insulation board (1) comprises a stainless steel plate shell (20), sound insulation cotton (21) and a wooden sound absorption plate (22), the stainless steel plate shell (20) is fixedly arranged on the two sides of the wooden sound absorption plate (22), and the sound insulation cotton (21) is arranged between the two stainless steel plate shells (20) on the two sides of the wooden sound absorption plate (22).

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