Silencing structure with high ventilation quantity

Abstract

The utility model relates to the technical field of noise elimination, and discloses a high-ventilation-quantity noise elimination structure which comprises a noise elimination frame, a second sliding groove is formed in the noise elimination frame, a first limiting plate is movably installed in the second sliding groove, a first sliding groove is formed in the noise elimination frame, and a second limiting plate is movably installed in the first sliding groove. A second limiting plate is movably installed in the first sliding groove, and a silencing plate is fixedly installed between the second limiting plate and the first limiting plate. Compared with a traditional structure, through the cooperation of the positioning hole pull rod and the spring, the silencing plate can be conveniently installed in the silencing frame and can be rapidly and accurately positioned in the silencing frame, the adjustment and correction time in the installation process is remarkably shortened, the overall installation efficiency is greatly improved, and meanwhile the installation efficiency is greatly improved. The silencing plate is firmly mounted in the silencing frame, so that the stability and the reliability of the structure are enhanced, the silencing plate can bear higher airflow pressure and vibration, and the service life is effectively prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sound attenuation technical field, more specifically, the utility model relates to a high ventilation sound attenuation structure. BACKGROUND

[0002] The high ventilation sound attenuation structure is designed for high airflow and noise control requirements, and is widely used in large ventilation systems, industrial plants, airports and subway stations and other occasions. Its characteristics are that it can ensure smooth passage of a large amount of airflow and low resistance, and can efficiently attenuate noise propagation, and sound energy is effectively absorbed or reflected through sound absorption materials, special airflow channels and other sound attenuation technologies. The structure is stable and can withstand high airflow pressure and vibration, ensuring long-term stable operation. At the same time, the design is convenient for cleaning and maintenance, prolongs the service life, and continuously maintains excellent sound attenuation effect. The sound attenuation support of the prior art is usually integrally formed or welded with the support. Although this design ensures the stability of the structure to a certain extent, it also has obvious disadvantages. Once the sound attenuation plate is damaged due to long-term use or environmental factors, it needs to be replaced. Because the sound attenuation plate is closely combined with the support, the entire sound attenuation support often needs to be disassembled and replaced, which not only increases the maintenance cost, but also makes the replacement process complicated. Therefore, this design has deficiencies in the maintainability and replaceability of the sound attenuation plate, limits the flexibility and service life of the sound attenuation support, and increases the difficulty and cost of later maintenance. SUMMARY

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a high ventilation sound attenuation structure, which has the advantage of facilitating the installation of the sound attenuation plate in the sound attenuation support.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a high ventilation sound attenuation structure, comprising a sound attenuation frame, a second sliding groove is formed in the inside of the sound attenuation frame, a first limiting plate is movably installed in the inside of the second sliding groove, a first sliding groove is formed in the inside of the sound attenuation frame, a second limiting plate is movably installed in the inside of the first sliding groove, a sound attenuation plate is fixedly installed between the second limiting plate and the first limiting plate, a roller is movably installed in the inside of the second limiting plate, a positioning hole is formed in the inside of the first limiting plate, a box body is fixedly installed in the inside of the sound attenuation plate, a positioning hole is movably installed in the inside of the positioning hole, and one end of the positioning hole extends to the inside of the sound attenuation frame, a pull rod is fixedly installed at the bottom of the positioning hole, one end of the pull rod penetrates the inside of the box body, and a spring is fixedly installed between the positioning hole and the box body.

[0005] As a preferred technical scheme of the utility model, the back surface of the sound-absorbing plate is fixedly provided with a second limiting column, the back surface of the sound-absorbing frame is fixedly provided with a first limiting column, a limiting workpiece is movably arranged on the outer surface of the first limiting column, and the one end of the limiting workpiece is clamped on the outer surface of the second limiting column.

[0006] As a preferred technical scheme of the utility model, the outer side of the sound-absorbing frame is fixedly provided with a fixed block, and a threaded hole is formed in the inner portion of the fixed block.

[0007] As a preferred technical scheme of the utility model, the back surface of the sound-absorbing plate is fixedly provided with a handrail, and the handrail has a U-shaped shape.

[0008] As a preferred technical scheme of the utility model, the outer side of the sound-absorbing plate is fixedly provided with sound-absorbing cotton, and the sound-absorbing cotton is made of glass fiber material.

[0009] As a preferred technical scheme of the utility model, the outer diameter of the first limiting plate is equal to the inner diameter of the second sliding groove, and the inner portion of the second sliding groove has a light surface design.

[0010] Compared with the prior art, the utility model has the beneficial effects as follows:

[0011] 1、compared with the traditional structure, the structure is convenient for installing the sound-absorbing plate in the inner portion of the sound-absorbing frame through the cooperation between the positioning hole pull rod and the spring, can rapidly and accurately position the inner portion of the sound-absorbing frame, significantly reduces the adjustment and correction time in the installation process, greatly improves the overall installation efficiency, meanwhile, the sound-absorbing plate is firmly installed in the sound-absorbing frame, enhances the stability and reliability of the structure, makes it can bear higher airflow pressure and vibration, effectively prolongs the service life, in addition, the close cooperation design reduces the sound wave leakage, optimizes the silencing effect, and is convenient for adjusting or replacing the sound-absorbing plate in the later period.

[0012] 2、compared with the traditional structure, the structure designs the first limiting column, the second limiting column and the limiting workpiece, realizes the accurate limiting and fixing of the second limiting plate and the roller. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1It is a front three-dimensional appearance structure schematic view of the utility model;

[0014] Figure 2 It is a back three-dimensional appearance structure schematic view of the utility model;

[0015] Figure 3 It is a side sectional structure schematic view of the utility model;

[0016] Figure 4 It is a utility model Figure 3 It is an enlarged structure schematic view of A in the utility model;

[0017] Figure 5 It is an explosion structure schematic view of the sound-absorbing plate of the utility model;

[0018] Figure 6 It is a box structure schematic view of the utility model;

[0019] Figure 7 It is an explosion structure schematic view of the limiting workpiece of the utility model;

[0020] Figure 8 It is a sound-absorbing frame partial sectional structure schematic view of the utility model

[0021] Figure 9 It is a utility model Figure 8 It is an enlarged structure schematic view of B in the utility model.

[0022] In the drawing: 1, sound-absorbing frame; 2, sound-absorbing plate; 3, sound-absorbing cotton; 4, fixed block; 5, threaded hole; 6, first limiting plate; 7, handrail; 8, first limiting column; 9, second limiting column; 10, limiting workpiece; 11, second limiting plate; 12, roller; 13, first sliding slot; 14, second sliding slot; 15, positioning hole; 16, box; 17, positioning hole; 18, pull rod; 19, spring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to 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.

[0024] For example, Figures 1 to 9The utility model provides a high ventilation sound -absorbing structure, including sound -absorbing frame 1, the inside of sound -absorbing frame 1 is seted up with second sliding slot 14, the inside movable mounting of second sliding slot 14 has first limit board 6, the inside of sound -absorbing frame 1 is seted up with first sliding slot 13, the inside movable mounting of first sliding slot 13 has second limit board 11, and the fixed mounting of second limit board 11 and first limit board 6 has sound -absorbing board 2, the inside movable mounting of second limit board 11 has gyro wheel 12, the inside of first limit board 6 is seted up with positioning hole 15, the fixed mounting of sound -absorbing board 2's inside has box 16, the inside movable mounting of positioning hole 15 has positioning hole 17, and the inside of positioning hole 17 is prolonged to the inside of sound -absorbing frame 1, and the fixed mounting of the bottom of positioning hole 17 has pull rod 18, and the inside of box 16 is penetrated to the one end of pull rod 18, and the fixed mounting between positioning hole 17 and box 16 has spring 19.

[0025] The staff needs to install sound -absorbing board 2 in the inside of sound -absorbing frame 1, now installs first limit board 6 and second limit board 11 on the upper and lower two sides of sound -absorbing board 2, then holds pull rod 18, and second limit board 11 is moved downward in the inside of sound -absorbing frame 1 by pull rod 18, and spring 19 is extruded by positioning hole 17, so that positioning hole 17 passes through the inside of sound -absorbing frame 1 and enters the inside of box 16, now holds handrail 7, and sound -absorbing board 2 is pushed slowly in the inside of sound -absorbing frame 1 by handrail 7, at this time, first limit board 6 enters the inside of second sliding slot 14 and second limit board 11 enters the inside of first sliding slot 13, and gyro wheel 12 is rotated in the inside of first sliding slot 13 by second limit board 11, when first limit board 6 and second limit board 11 completely enter the inside of sound -absorbing frame 1, release pull rod 18, and positioning hole 17 passes through the inside of sound -absorbing frame 1 and enters the inside of positioning hole 15 by the extrusion of spring 19 to positioning hole 17, and first limit board 6 is fixed by positioning hole 15, so that the installation of sound -absorbing board 2 is completed.

[0026] In order to complete the installation task, we first put the soundproof plate 2 in the inside of the soundproof frame 1, then install the first limiting plate 6 and the second limiting plate 11 on the upper and lower sides of the soundproof plate 2 respectively, next, hold the pull rod 18 and pull, make the second limiting plate 11 slowly move downward in the inside of the soundproof frame 1, in the process, the positioning hole 17 is extruded by the spring 19, penetrates the inside of the soundproof frame 1 into the box 16, then push the soundproof plate 2 by holding the handrail 7, make it slowly enter the inside of the soundproof frame 1. At this time, the first limiting plate 6 enters the inside of the second sliding groove 14, while the second limiting plate 11 enters the inside of the first sliding groove 13, and drives the roller 12 to rotate in the first sliding groove 13, when the first limiting plate 6 and the second limiting plate 11 completely enter the inside of the soundproof frame 1, release the pull rod 18, the spring 19 continues to apply pressure to the positioning hole 17, so that it penetrates the inside of the soundproof frame 1 and finally enters the positioning hole 15, thus, the installation work of the soundproof plate 2 is successfully completed. Compared with the traditional structure, the structure cooperates between the positioning hole 17, the pull rod 18 and the spring 19, which is convenient for installing the soundproof plate 2 in the inside of the soundproof frame 1, can quickly and accurately position in the inside of the soundproof frame 1, significantly reduces the adjustment and correction time in the installation process, greatly improves the overall installation efficiency, at the same time, the soundproof plate 2 is firmly installed in the soundproof frame 1, enhances the stability and reliability of the structure, so that it can withstand higher airflow pressure and vibration, effectively prolongs the service life, in addition, the close cooperation design reduces the sound wave leakage, optimizes the silencing effect, and is convenient for adjusting or replacing the soundproof plate later. This easy-to-install feature also reduces maintenance costs, reduces the difficulty and time of disassembly and reinstallation, and provides a strong guarantee for the long-term operation of the sound reduction structure.

[0027] Among them, the back of the soundproof plate 2 is fixedly installed with the second limiting column 9, the back of the soundproof frame 1 is fixedly installed with the first limiting column 8, the outer surface of the first limiting column 8 is movably installed with the limiting workpiece 10, and one end of the limiting workpiece 10 is clamped on the outer surface of the second limiting column 9. The inside of the second limiting plate 11 movably installs the roller 12, and the number of the roller 12 is two.

[0028] After the staff completes the installation of the soundproof plate 2, the bottom roller 12 of the second limiting plate 11 needs to be limited and fixed. The second limiting plate 11 is completely entered into the inside of the first sliding groove 13 through the handrail 7, at this time, the first limiting column 8 is rotated through the outer surface of the limiting workpiece 10, until the clamping interface at one end of the limiting workpiece 10 is clamped in the inside of the second limiting column 9, the second limiting plate 11 is limited and fixed in the inside of the first sliding groove 13 through the limiting workpiece 10, so as to complete the limiting and fixing of the roller 12.

[0029] After the sound-absorbing plate 2 is installed, the bottom assembly roller 12 needs to be limited and fixed. The second limiting plate 11 and the roller 12 are completely pushed into the first sliding groove 13 through the handrail 7, then the limiting workpiece 10 on the outer surface of the first limiting column 8 is held, the first limiting column 8 is driven by rotating the limiting workpiece 10 until the clamping interface at one end is tightly clamped into the second limiting column 9, thereby the second limiting plate 11 is firmly limited in the first sliding groove 13 through the limiting workpiece 10, and the effective limiting and fixing of the roller 12 are realized. Compared with the traditional structure, the structure design ingeniously integrates the first limiting column 8, the second limiting column 9 and the limiting workpiece 10, and realizes the precise limiting and fixing of the second limiting plate 11 and the roller 12. This improvement greatly simplifies the installation process of the sound-absorbing plate 2 in the sound-absorbing frame 1, and the cooperation of the roller 12 and the second limiting plate 11 further improves the installation convenience. Not only the labor intensity of the labor personnel is reduced, but also the installation efficiency of the sound-absorbing plate 2 is significantly improved, and the smoothness and efficiency of the installation process are ensured.

[0030] The outer side of the sound-absorbing frame 1 is fixedly provided with a fixed block 4, and a threaded hole 5 is formed in the inner side of the fixed block 4.

[0031] The fixed block 4 is fixed on the ground by holding the bolt and slowly screwing it into the threaded hole 5 and the inner side of the ground, and the sound-absorbing frame 1 is fixed by the fixed block 4, thereby ensuring the stability of the sound-absorbing frame 1 during use.

[0032] The back of the sound-absorbing plate 2 is fixedly provided with a handrail 7, and the handrail 7 has a U-shaped shape.

[0033] Since the handrail 7 has a U-shaped shape on the back of the sound-absorbing plate 2, and the U-shaped sound-absorbing plate 2 design is more in line with the ergonomic principle, it can provide comfortable support for the operator's arms, and facilitate the installation of the sound-absorbing plate 2 in the sound-absorbing frame 1 by the staff.

[0034] The outer side of the sound-absorbing plate 2 is fixedly provided with sound-absorbing cotton 3, and the sound-absorbing cotton 3 is made of glass fiber material.

[0035] Since the sound-absorbing cotton 3 is made of glass fiber material on the outer side of the sound-absorbing frame 1, the glass fiber sound-absorbing cotton 3 has countless three-dimensional holes and large porosity. When the sound wave invades, it will rub with the fiber and air pockets of different sizes, so that the sound wave energy is largely absorbed. Generally, the sound absorption rate is as high as 90% or more, and it is especially suitable for absorbing middle and high frequency sounds such as human voice and machine running sound. It is very effective for improving the indoor acoustic environment.

[0036] The outer diameter of the first limiting plate 6 is equal to the inner diameter of the second sliding groove 14, and the inner side of the second sliding groove 14 has a smooth surface design.

[0037] Due to the outer diameter value of the first limiting plate 6, equal to the inner diameter value of the second sliding groove 14, and the design of the inner part of the second sliding groove 14 having a smooth surface, so that the staff holds the handrail 7, drives the sound-absorbing plate 2 to slowly push the first limiting plate 6 into the inner part of the second sliding groove 14, and guarantees the installation efficiency of the first limiting plate 6.

[0038] The working principle and use process of the utility model:

[0039] The staff needs to install the sound-absorbing plate 2 in the inner part of the sound-absorbing frame 1, now installs the first limiting plate 6 and the second limiting plate 11 on the upper and lower sides of the sound-absorbing plate 2, then holds the pull rod 18, drives the second limiting plate 11 to move downwards in the inner part of the sound-absorbing frame 1 through the pull rod 18, extrudes the spring 19 through the positioning hole 17, makes the positioning hole 17 pass through the inner part of the sound-absorbing frame 1 and enter the inner part of the box body 16, now holds the handrail 7, slowly pushes the sound-absorbing plate 2 in the inner part of the sound-absorbing frame 1 through the handrail 7, at this time, the first limiting plate 6 enters the inner part of the second sliding groove 14 and the second limiting plate 11 enters the inner part of the first sliding groove 13, drives the roller 12 to rotate in the inner part of the first sliding groove 13 through the second limiting plate 11, when the first limiting plate 6 and the second limiting plate 11 completely enter the inner part of the sound-absorbing frame 1, releases the pull rod 18, extrudes the positioning hole 17 through the spring 19, makes the positioning hole 17 pass through the inner part of the sound-absorbing frame 1 and enter the inner part of the positioning hole 15, limits and fixes the first limiting plate 6 through the positioning hole 15, thereby completing the installation of the sound-absorbing plate 2.

[0040] After the staff completes the installation of the sound-absorbing plate 2, needs to limit and fix the roller 12 at the bottom of the second limiting plate 11, the second limiting plate 11 completely enters the inner part of the first sliding groove 13 through the handrail 7 at this time, holds the limiting workpiece 10 on the outer surface of the first limiting column 8, rotates the first limiting column 8 on the outer surface of the limiting workpiece 10 until the clamping port at one end of the limiting workpiece 10 is clamped in the inner part of the second limiting column 9, limits and fixes the second limiting plate 11 in the inner part of the first sliding groove 13 through the limiting workpiece 10, thereby completing the limiting fixing of the roller 12.

[0041] It should be noted that, in this text, relational terms such as first and second are used merely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between or among the entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, so that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0042] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-ventilation sound attenuation structure comprising a sound attenuation frame (1), characterized in that: The inside of the sound attenuation frame (1) is provided with a second sliding groove (14), the first limiting plate (6) is movably installed in the second sliding groove (14), the inside of the sound attenuation frame (1) is provided with a first sliding groove (13), the second limiting plate (11) is movably installed in the first sliding groove (13), the sound attenuation plate (2) is fixedly installed between the second limiting plate (11) and the first limiting plate (6), the roller (12) is movably installed in the second limiting plate (11), the positioning hole (15) is formed in the first limiting plate (6), the box (16) is fixedly installed in the sound attenuation plate (2), the positioning hole (17) is movably installed in the positioning hole (15), one end of the positioning hole (17) extends to the inside of the sound attenuation frame (1), the pull rod (18) is fixedly installed at the bottom of the positioning hole (17), one end of the pull rod (18) penetrates into the inside of the box (16), the spring (19) is fixedly installed between the positioning hole (17) and the box (16).

2. A high-ventilation sound attenuation structure according to claim 1, characterized in that: The back of the sound attenuation plate (2) is fixedly installed with the second limiting column (9), the back of the sound attenuation frame (1) is fixedly installed with the first limiting column (8), the limiting workpiece (10) is movably installed on the outer surface of the first limiting column (8), one end of the limiting workpiece (10) is clamped on the outer surface of the second limiting column (9), the roller (12) is movably installed in the second limiting plate (11), and the number of the roller (12) is two.

3. A high-ventilation sound attenuation structure according to claim 1, characterized in that: The outside of the sound attenuation frame (1) is fixedly installed with the fixed block (4), and the threaded hole (5) is formed in the inside of the fixed block (4).

4. A high-ventilation sound attenuation structure according to claim 1, characterized in that: The back of the sound attenuation plate (2) is fixedly installed with the handrail (7), and the handrail (7) is in the shape of U.

5. A high-ventilation sound attenuation structure according to claim 1, wherein: The outside of the sound attenuation plate (2) is fixedly installed with the sound attenuation cotton (3), and the sound attenuation cotton (3) is made of glass fiber material.

6. A high-ventilation sound attenuation structure according to claim 1, characterized in that: The outer diameter of the first limiting plate (6) is equal to the inner diameter of the second sliding groove (14), and the inside of the second sliding groove (14) has a smooth surface design.

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