WO2020192157A1

WO2020192157A1 - Standardized sound insulation module and module detection device

Info

Publication number: WO2020192157A1
Application number: PCT/CN2019/120560
Authority: WO
Inventors: 周良宏
Original assignee: 苏州拓朴声学科技有限公司
Priority date: 2019-03-28
Filing date: 2019-11-25
Publication date: 2020-10-01
Also published as: CN109856244A; CN109856244B

Abstract

Disclosed in the present invention are a standardized sound insulation module and a module detection device. Said module comprises a support frame; a thin metal plate is provided on each of both sides of the support frame, the surface of the thin metal plate is sprayed with an anti-corrosion finishing layer, a water and fire proof high-density plate is provided on the surface, located inside the support frame, of one thin metal plate, and at least one sound insulation unit is provided between the other thin metal plate and the water and fire proof high-density plate; when there are a plurality of sound insulation units, two adjacent sound insulation units are adhered, the sound insulation units and the water and fire proof high-density plate are also adhered, and each of the sound insulation units consists of a water and fire proof high-density plate and a sound-absorbing cotton layer which are adhered together. The present invention can avoid decreasing, in certain specific frequency bands, of sound insulation performance of a sound insulation module made of conventional sound insulation materials, that is, there are no stiffness control region and anastomosis control region in the auditory threshold range of human ears; in addition, in the invention, the sound insulation material is designed as a module that can be produced in great scale in a standardized manner, thereby being highly cost-effective.

Description

A standardized sound insulation module and module detection device

Technical field

The invention relates to the field of sound insulation and noise reduction, in particular to a standardized sound insulation module and a module detection device.

Background technique

With the rapid economic development and the tightening of environmental protection policies, sound insulation and noise reduction technologies have been widely used in various fields of industry and civil use, and the demand for sound insulation materials is on the rise. However, the sound insulation materials available on the market generally have several shortcomings:

First, the sound insulation of a single panel is difficult to exceed 35 decibels;

Second, the sound insulation performance of a single homogeneous sound insulation material in some specific frequency ranges (ie, low-frequency stiffness control area and high-frequency coincidence control area) is reduced, and it is difficult to adapt to the full frequency range of noise sources;

Third, most of the application scenarios of sound insulation panels are used to make sound insulation hoods, sound insulation boxes, semi-cancellation rooms, and full-cancellation rooms. At present, sheet metal parts are basically used to make sound insulation modules in the market. The shortcomings are: sheet metal is easy to fall into the stiffness control zone and damping control zone in the low frequency range, which causes the sound insulation performance in this frequency band to be greatly reduced; in the high frequency range, it is easy to fall into the coincidence control zone and cause the sound insulation performance of this frequency band to decrease; Standardized and large-scale production; because there are many manual welding, processing and production links, the processing accuracy of the module is not high; and the cost is relatively high.

Fourth, if you need to obtain a large amount of sound insulation, you need to use a combination of two or more layers of sound insulation panels to install. During the installation process, you need to add a fixed keel or sheet metal to support. This kind of support keel or sheet metal component is in fact already Become a sound insulation defect: the sound bridge, which will restrict the sound insulation performance of the sound insulation structure. And no matter from the occupied space size, installation efficiency, installation cost, it is not economical;

Summary of the invention

The technical problem to be solved by the present invention is to provide a standardized sound insulation module and a module detection device, which can avoid the sound insulation module whose sound insulation performance is reduced in certain specific frequency bands, that is, there is no stiffness control zone within the hearing threshold of human ears. This is consistent with the situation in the control area; secondly, the invention also designs the sound insulation material as a large-scale standardized production module, which is very cost-effective.

In order to solve the above technical problems, the present invention provides a standardized sound insulation module, including a support frame, the front and back of the support frame are both provided with a thin metal plate, and the surface of the thin metal plate is sprayed with an anticorrosive finish layer, One of the thin metal plates is provided with a waterproof and fireproof high-density board on the surface inside the support frame, and at least one sound insulation unit is provided between the other thin metal plate and the waterproof and fireproof high-density board. When there are multiple sound insulation units, Two adjacent sound insulation units are connected by adhesion, and the sound insulation unit and the waterproof and fireproof high-density board are also connected by adhesion. The sound insulation unit is made up of the waterproof and fireproof high-density board glued together. Composed of sound-absorbing cotton layer.

Further, a reinforcing groove is provided on the outer peripheral surface of the supporting frame.

Further, the supporting frame includes an upper casing and a lower casing, the upper casing can be set on the lower casing, and an inner ring wall of the upper casing and an outer ring wall of the lower casing are provided between Rubber partition, said rubber partition being fixedly arranged on the outer ring wall of the lower casing;

When using, include the following methods:

First produce the upper cover, lower cover, rubber partition, sound insulation unit and thin metal plate separately;

Then install the rubber partition on the surface of the lower casing, fix the two thin metal plates with the upper casing and the lower casing respectively, glue one of the sound insulation units in the lower casing, and glue the waterproof and fireproof high-density board to In the upper casing;

According to the design requirements of the sound insulation capacity, the lower cover and the upper cover are then placed in overlap;

According to the sound insulation requirements of the use position, increase the number of sound insulation units on the sound insulation unit in the lower casing and fix them by bonding;

Finally, set the upper casing cover on the lower casing and use a hammer to strike to fit the inner wall of the upper casing cover and the rubber partition until the waterproof and fireproof high-density board in the upper casing abuts against the sound insulation unit; The rubber partition is used to break the acoustic bridge between the upper casing and the upper casing;

Among them, increase the number of sound insulation units to be used according to the sound insulation requirements of the use location and the following formula:

R=13lg(m ₁ +m ₂ )+11.5+ΔR(m ₁ +m ₂ ≤200kg/m ² ).

Further, the rubber partition is provided with a guide slope on one side of the upper casing in the installation direction, and the rubber partition surface is provided with convex patterns.

A module detection device for detecting any one of the above-mentioned sound insulation modules, comprising a first box body, a second box body, and a third box body arranged in sequence, the first box body and the third box body The box body is located on opposite sides of the second box body, and is detachably connected to the second box body through a connecting component; the first box body is provided with a first communication hole, and the third box body A third communication hole is opened on the upper side, and both the first communication hole and the third communication hole face the second box body; the second box body is penetrated with a second communication hole, the first communication hole The center line of the second communication hole, the center line of the second communication hole and the center line of the third communication hole are all arranged collinearly; a noise source is placed in the first box, and a monitor is placed in the third box, The second box is detachably connected to the sound insulation module through a locking assembly;

The locking assembly includes a linkage rod, a bottom plate, a handle, and a locking rod. The bottom plate is attached to the inner wall of the second box body, and the handle is hinged with the bottom plate; the handle is connected to the lock through a connecting bar. The rod is rotationally connected to drive the locking rod to contact or disengage from the sound insulation module; one end of the linkage rod is hinged with the second box body, and the other end is fixedly connected with the bottom plate.

Further, a telescopic rod is threadedly connected to the free end of the locking rod, and the telescopic rod can be extended or inserted from the locking rod to adjust the distance between the telescopic rod and the locking rod. The free end of the rod is provided with an abutting block.

Further, the bottom plate is connected to the second box body through a limit component, and the limit component includes a limit block and a limit slot matched with the limit block; the limit block and the bottom plate Fixed, the inner wall of the second box body is recessed to form the limiting groove.

Further, the first box body and the third box body both include an outer frame and an inner frame, the inner frame is embedded inside the outer frame, and the corners of the inner frame and the corresponding positions Damping blocks are arranged between the corners of the outer frame.

Further, both ends of the second box body are provided with sealing layers to increase the sealing performance between the second box body and the first box body and the third box body. The sealing layer It includes a plurality of combined sealing strips, and the sealing strips are hollow semi-cylinders.

Further, the connecting assembly includes a fixing seat, a handle, a lock catch, and a block that cooperates with the lock catch; the fixing seat is arranged on the side of the first box body or the third box body, so The end of the handle is rotatably connected with the fixing base through a first rotating pin, and the lock catch is rotatably connected with the middle of the handle through a second rotating pin; the clamping block is fixed on the second box body , And the locking block is recessed with the locking slot for embedding the lock catch.

The beneficial effects of the present invention:

The sound insulation module provided by the present invention, that is, there is no stiffness control area and anastomosis control area in the human hearing threshold range; secondly, the invention also designs the sound insulation material as a module that can be mass-standardized production; the sound insulation is far greater than 35 The decibel, the highest can exceed 100 decibels; there is no sound bridge defect, thereby maximizing the sound insulation performance; third, the sound insulation module has high processing accuracy, convenient and fast construction and installation, and no additional cavity keel brackets are required to avoid sound Bridge defect; the cost performance is very high, under the same sound insulation, it can reduce the cost by more than 50% compared with the conventional sheet metal sound insulation module;

One end of the handle is hinged to the bottom plate, and the middle of the handle is pivotally connected to the locking rod through the connecting bar. At the same time, one end of the linkage rod is hinged to the second box body, and the other end is fixedly connected to the bottom plate; therefore, the locking rod can be driven along its axis when the handle is turned It can be moved towards the sound insulation module so that it can abut or separate from the sound insulation module, so as to realize the rapid fixing and taking of the sound insulation module; in addition, the linkage lever hinged with the second box body can realize the sliding movement of the bottom plate, thereby increasing the lock The locking range of the solid components makes the sound insulation test box suitable for various specifications of sound insulation modules to improve the utilization rate of the sound insulation test box.

Description of the drawings

Figure 1 is a schematic diagram of the sound insulation module structure of the present invention;

Figure 2 is a schematic structural view of the present invention with an upper casing and a lower casing;

3 is a schematic diagram of the cross-sectional structure of the sound insulation module of the present invention;

Figure 4 is an overall schematic diagram of the detection device of the present invention;

Figure 5 is an enlarged view of part A of Figure 4;

Figure 6 is an exploded view of the detection device;

Fig. 7 is an enlarged view of part B in Fig. 6.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention, but the cited embodiments are not intended to limit the present invention.

1, an embodiment of the standardized sound insulation module of the present invention includes a support frame 110. The front and back of the support frame are both provided with a thin metal plate 114, and the surface of the thin metal plate is sprayed with an anti-corrosion finish layer, wherein One thin metal plate is provided with a waterproof and fireproof high-density board 116 on the surface inside the support frame, and at least one sound insulation unit 115 is provided between the other thin metal plate and the waterproof and fireproof high-density board. When there are multiple sound insulation units , The two adjacent sound insulation units are connected by adhesion, and the sound insulation unit and the waterproof and fireproof high-density board are also connected by adhesion. The sound insulation unit is composed of a waterproof and fireproof high-density board and a sound-absorbing cotton layer bonded together. 117 composition.

The above scheme is a combined structure of multiple layers of sound insulation and sound absorbing materials with different mass densities and different acoustic impedances; and the technology is a kind of spraying thin metal plates as the anti-corrosion finish layer on both the front and the back. The structure of the metal sheet includes but is not limited to steel or aluminum, with thicknesses ranging from 0.4MM, 0.5, 0.8, 1.0, 1.2MM; the color of the spraying can be freely selected; the middle structure of the module is a number of sound insulation combined units;

The sound insulation combined unit of this technology is: a cavity sound insulation structure, specifically a waterproof and fireproof high-density board (G) + sound-absorbing cotton layer (Y) as a combined unit; G+Y+G+Y+······ It is composed of several combination units, and the number of different combination units achieves different sound insulation; among them, high-density board materials include but not limited to calcium silicate board, fireproof board, etc.; sound-absorbing cotton layer materials include limited to rock wool, centrifugal glass wool, polyester Fiber and other sound waves enter the low-density sound-absorbing cotton layer from the high-density sound insulation board, and pass through two different density media. According to the principle of air-borne sound insulation, sound energy will be converted into heat energy and consumed, thereby achieving the purpose of sound insulation .

A reinforcing groove 119 is provided on the outer peripheral surface of the supporting frame. The supporting structure is: a concave keel, or a V-shaped keel as the frame as the supporting structure. This keel is fixed by elastic connectors with good damping performance. The surface metal sheet and the middle sound insulation combined unit are environmentally friendly. Type high-strength adhesives are bonded together to avoid acoustic bridge defects.

2 and 3, the above-mentioned support frame may also include an upper cover 111 and a lower cover 112, the upper cover can be set on the lower cover, the inner ring wall of the upper cover and the outer wall of the lower cover A rubber partition 113 is arranged between the ring walls, and the rubber partition is fixedly arranged on the outer ring wall of the lower casing. The surfaces of the upper casing and the lower casing are both provided with thin metal plates 114, and a plurality of thin metal plates are arranged in sequence between the two thin metal plates. A sound insulation unit 115. The sound insulation unit includes a waterproof and fireproof high-density board 116 and a sound-absorbing cotton layer 117 that are glued together. One of the thin metal plates is also glued with a waterproof and fireproof high-density board, and the other Glue with the waterproof and fireproof high-density board of the corresponding sound insulation unit, and connect multiple sound insulation units by bonding;

The supporting frame structure of this technology is: the upper and lower embedded structure, and the rubber partition is used to connect the middle, which is equivalent to the broken bridge aluminum structure, so that the supporting frame structure has the effect of breaking the bridge, achieving the effect of sound insulation and heat insulation;

The product shape and thickness dimensions presented by this technology include but are not limited to 5CM thickness, 7.5CM thickness, 10CM thickness, 12.5CM thickness, 15CM thickness, etc. When different sound insulation levels are required, different sound insulation combination units will be selected;

In specific use, the following methods are included:

First produce the upper cover, lower cover, rubber partition, sound insulation unit and thin metal plate separately; the sound insulation module is mainly used in the environment where the sound insulation needs are uncertain. Therefore, it is not all assembled after separate production. Partially assembled, the rubber partition is installed on the surface of the lower cover, two thin metal plates are fixedly connected to the upper cover and the lower cover, and one of the sound insulation units is glued in the lower cover, and the waterproof and fireproof high-density board is glued Closed in the upper cover; making the basically unchanged combination relationship to be combined and connected;

Then place the lower cover and the upper cover facing each other and bring them to the construction site together with the remaining sound insulation units;

According to the sound insulation requirements of the use position, increase the number of sound insulation units on the sound insulation unit in the lower casing and fix them by bonding; among them, take specific materials as an example:

The following table shows the basic parameters of the module material

Calculate the amount of sound insulation and use the following formula to determine the number of additional sound insulation units:

R=13lg(m ₁ +m ₂ )+11.5+ΔR(m ₁ +m ₂ ≤200kg/m ² )

①Sound insulation of a single combined unit:

m ₁ ＝6.32+6.6＝12.92kg/m ²

m ₂ ＝6.32+6.6＝12.92kg/m ²

ΔR=10dB (50MM air layer, filled with 50MM thick 80K rock wool)

Then, the sound insulation of a single sound insulation unit is:

R=13lg(m ₁ +m ₂ )+11.5+ΔR(m ₁ +m ₂ ≤200kg/m ² )

That is: R=13lg(12.92+12.92)+11.5+10=39.86(dB)

②The sound insulation of the two combined units:

R=13lg(∑m)+11.5+ΔR ₁ +ΔR ₂ (∑m≤200kg/m ² )

That is, R=13lg(44.39)+11.5+10+10=52.9(dB)

②And so on

The sound insulation of the three combined units is: R = 64.6 (dB)

The sound insulation of the four combined units is: R = 76 (dB)

The sound insulation of the five combined units is: R = 87.1 (dB)

The sound insulation of the six combined units is: R = 98.0 (dB)

The sound insulation of the seven combined units is: R = 108.8 (dB)

...

According to the actual demand, the sound insulation of the combined unit is smaller than the sound insulation capacity of the combination unit. The appropriate number combination is selected and pasted. After the bonding is completed, the upper cover is set on the lower cover, and the inner wall of the upper cover is hit with the rubber Cut off the interference fit until the waterproof and fireproof high-density board in the upper shell abuts against the sound insulation unit. Specifically, the rubber partition is provided with a guiding inclined surface 118 on the side of the installation direction of the upper casing, and the rubber partition surface is provided with convex patterns, so that the upper casing is installed stably without jamming, and after installation, the stability effect is good; When the number of combined units is small, the striking distance is large, and the upper cover and the lower cover overlap more; when the number of combined units is large, the striking distance is small, and the upper cover and the lower cover overlap less.

Of course, the size of the upper casing and the lower casing is limited, and a set of upper casing and lower casing can be matched with a combination of up to 2-3 units to better improve applicability. Of course, you can replace the upper cover of different sizes to meet all the combination requirements.

The resonance frequency and critical frequency of the thin metal plate are both within the hearing threshold of the human ear, so designers usually take many careful measures to avoid the above stiffness control area and anastomosis control area. This is a common problem with a single homogeneous material.

This technical solution shifts the resonance frequency of the sound insulation combination module toward the low frequency, and shifts the critical frequency toward the high frequency, far away from the hearing threshold range of the human ear, and greatly improves the sound insulation performance of the product. The core principle is that the combined structure combines materials with different acoustic impedances and different mass densities to cause multiple reflections of sound waves on the interface of each layer. Because the material impedance of each sound insulation unit is quite different (steel plate and sound-absorbing Cotton), the greater the reflected sound energy, the smaller the transmitted sound energy, which makes the sound insulation greater; in addition, the high-density board is attached to the thin steel plate, which will greatly suppress the deformation of the steel plate and avoid the thin steel plate from appearing at the resonance frequency. The sound insulation of the zone and the coincident frequency zone has dropped significantly.

Referring to Figures 4 to 7, a device for detecting sound insulation modules is also provided, which uses noise sources and detection devices to detect the sound insulation performance of the sound insulation modules to ensure that the sound insulation structure selected under the formula meets actual needs . The soundproof test box includes a first box body 1, a second box body 2 and a third box body 3. The first box body 1, the second box body 2 and the third box body 3 are arranged in sequence, and the first box body 1 and the second box body The three boxes 3 are all arranged on opposite sides of the second box 2. The first box body 1 and the third box body 3 are both hollow. The end surface of the first box body 1 close to the second box body 2 is provided with a first communication hole 11, and the third box body 3 is close to the end surface of the second box body 2. A third communication hole 31 is opened, and the second box body 2 is penetrated with a second communication hole 21. The first communication hole 11, the second communication hole 21 and the third communication hole 31 are connected in sequence, and the center of the first communication hole 11 The line, the center line of the second communication hole 21 and the center line of the third communication hole 31 are all arranged collinearly. A noise source is placed in the first box 1, a monitor is placed in the third box 3, and a sound insulation module is detachably fixed in the second box 2, so the test material can be detected by the noise source and the monitor The sound insulation performance.

6, when the sound insulation module is fixed inside the second box 2, in order to facilitate the placement of the second communication hole 21 is arranged in a pyramid shape, that is, the opening areas at both ends of the second communication hole 21 are not consistent, in this embodiment The opening area of the end of the second communication hole 21 close to the first box 1 is relatively large. At the same time, in order to facilitate the fixing of the sound insulation module, the opening of the second communication hole 21 near the end of the first box 1 is larger than the sound insulation module, so that the sound insulation module can be placed inside the second box 2; and the second communication hole 21 is close to The opening at one end of the third box 3 is smaller than the sound insulation module, so that the sound insulation module cannot be separated from its end; in this embodiment, the end face of the sound insulation module is connected to the second box 2 during the test of the sound insulation module. The inner wall abuts, and the abutment position is located at the end of the second communication hole 21 close to the third box 3. At the same time, in order to facilitate the locking of the sound insulation module and the second box body 2, the second box body 2 applies a thrust to the sound insulation module through the locking assembly to fix the sound insulation module inside the second box body 2.

6 and 7, the locking assembly includes a bottom plate 71, a handle 73, and a locking rod 74. The bottom plate 71 is attached to the inner wall of the second box body 2. One end of the handle 73 is hinged with the bottom plate 71, and the handle 73 is close to the middle position. The locking rod 74 is hinged with the connecting bar, that is, the two ends of the locking rod 74 are hinged with the handle 73 and the locking rod 74 respectively. When the handle 73 is rotated, the handle 73 drives the connecting bar 732 to rotate around the hinge point, and at the same time, the connecting bar 732 can pull the locking rod 74 and the axial movement of the locking rod 74 thereof. The free end of the locking rod 74 can abut against the end surface of the sound insulation module. In order to improve the stability of the sound insulation module, there are 4 sets of locking components in this embodiment, and they are all arranged at 4 corners of the sound insulation module. Corresponding location.

7, the locking assembly further includes a linkage rod 72, one end of the linkage rod 72 is rotatably connected to the second box 2, and the other end is fixedly connected to the bottom plate 71, so the position of the bottom plate 71 can be adjusted by the linkage rod 72. When the linkage rod 72 is pushed to move, the bottom plate 71 can be attached to the inner wall of the second box body 2 to move linearly, so that the locking assembly can adapt to the sound insulation modules of various specifications. In order to make the bottom plate 71 always adhere to the inner wall of the second box body 2 during the movement, a limit component is arranged between the bottom plate 71 and the second box body 2. The limit component includes a limit block (not shown in the figure) and A limit slot for embedding a limit block (not shown in the figure). The limiting block is fixedly connected to the bottom plate 71, and the limiting slot is opened along the direction of the second communicating hole 21.

7, the free end of the locking rod 74 is threadedly connected with a telescopic rod 741. The end of the telescopic rod 741 can be inserted into the end of the locking rod 74. The threaded structure between the locking rod 74 and the telescopic rod 741 can adjust the expansion and contraction. The distance that the rod 741 extends from the inside of the locking rod 74 can adjust the telescopic rod 741 according to the specifications of the sound insulation module to increase the applicable scope of the sound insulation test box. In addition, the free end of the telescopic rod 741 is fixed with an abutment block 742. The abutment block 742 can increase the contact area between the telescopic rod 741 and the sound insulation module, reduce the stress concentration when fixing the sound insulation module, and have a certain effect on the sound insulation module. Protective effects.

7, in order to facilitate the operation, a non-slip sleeve 731 is sheathed on the handle 73 to increase the static friction of the handle 73. The material of the anti-slip sleeve 731 in this embodiment is preferably rubber.

6, the first box body 1 includes an outer frame 51 and an inner frame 52 embedded in the outer frame 51, and the centers of the outer frame 51 and the inner frame 52 coincide. In order to improve the accuracy of detection and reduce the interference of external noise on the test results, the outer wall of the outer frame 51 is covered with soundproof material, so that the first box 1, the second box 2 and the third box 3 are connected The test space is in a relatively closed environment to improve the accuracy of the test results. Corresponding corners of the inner frame 52 and the outer frame 51 are all connected by shock absorbing blocks 53, and the internal and external nested structure and shock absorbing blocks 53 can reduce the vibration of the first box 1 when the noise source is working.

5, the third box body 3 includes an outer frame 51 and an inner frame 52 embedded in the outer frame 51, and the centers of the outer frame 51 and the inner frame 52 coincide. In order to improve the accuracy of the detection and reduce the interference of external noise on the test result, the outer wall of the outer frame 51 is covered with a soundproof material. Corresponding corners of the inner frame 52 and the outer frame 51 are connected by shock-absorbing blocks 53, and the internal and external nested structure and shock-absorbing blocks 53 can reduce the vibration of the third box 3 when the noise source is working.

4 and 5, the first box body 1 and the third box body 3 are detachably connected to the second box body 2 through a connecting component. The connecting component includes a fixing seat 41, a handle 42, a lock 43 and a lock 43 Matched card block 22. The fixing seat 41 is fixedly arranged on the side of the first box body 1 or the third box body 3 so as to be connected with the clamping block 22 fixed on the side of the second box body 2. The end of the handle 42 close to the second box 2 is rotatably connected to the fixing seat 41 through a first rotating pin, the middle of the handle 42 is rotatably connected to the lock catch 43 through a second rotating pin, and the lock catch 43 is driven to move by rotating the handle 42 to achieve The connection between the lock 43 and the block 22. The clamping block 22 is recessed with a groove 221 for inserting the lock buckle 43. The clamping force of the groove 221 and the lock buckle 43 can be used to realize the quick assembly of the first box body 1, the second box body 2 and the third box body 3 To facilitate detection, and to improve the efficiency of sound insulation module detection.

4-6, the two opposite end surfaces of the second box body 2 are adhered with a sealing layer 23. The sealing layer 23 includes a plurality of sealing strips 231 arranged side by side. The sealing strips 231 are hollow semi-cylindricals. The sealing layer 23 is arranged on the end surface which is attached to the first box body 1 and the third box body 3, which can increase the sealing performance of the splicing; at the same time, because the sealing strip 231 is a hollow semi-cylinder, it can fill the first The gaps between the joint surfaces of the first box 1, the second box 2 and the third box 3 due to machining errors can improve the sealing effect, and at the same time, it can reduce the impact of the first box 1 and the second box 2 during assembly. And damage to the third box 3.

Referring to Fig. 4, a trolley 6 is respectively provided under the first box body 1, the second box body 2 and the third box body 3 to facilitate movement and assembly. A number of buffer blocks 61 are arranged above the trolley 6. In this embodiment, the buffer blocks 61 are arranged at the 4 corners of the trolley 6. The buffer blocks 61 can reduce the first box body 1, the second box body 2 and the third box body during the test. Vibration of box 3.

The above-mentioned embodiments are only preferred embodiments for fully explaining the present invention, and the protection scope of the present invention is not limited thereto. The equivalent substitutions or changes made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the present invention is subject to the claims.

Claims

A standardized sound insulation module, which is characterized by comprising a supporting frame, the front and back of the supporting frame are provided with thin metal plates, the surface of the thin metal plate is sprayed with an anticorrosive finish, and one of the thin metal plates is located on the supporting frame A waterproof and fireproof high-density board is arranged on the inner surface, and at least one sound insulation unit is arranged between the other thin metal plate and the waterproof and fireproof high-density board. When there are multiple sound insulation units, one of the two adjacent sound insulation units The sound insulation unit and the waterproof and fireproof high-density board are also connected by adhesion. The sound insulation unit is composed of a waterproof and fireproof high-density board and a sound-absorbing cotton layer bonded together.
The standardized sound insulation module according to claim 1, wherein a reinforcing groove is provided on the outer peripheral surface of the supporting frame.
The standardized sound insulation module according to claim 1, wherein the supporting frame comprises an upper casing and a lower casing, the upper casing can be arranged on the lower casing, and the inner part of the upper casing A rubber partition is provided between the ring wall and the outer ring wall of the lower cover, and the rubber partition is fixedly arranged on the outer ring wall of the lower cover;

When using, include the following methods:

First produce the upper cover, lower cover, rubber partition, sound insulation unit and thin metal plate separately;

Then install the rubber partition on the surface of the lower casing, fix the two thin metal plates with the upper casing and the lower casing respectively, glue one of the sound insulation units in the lower casing, and glue the waterproof and fireproof high-density board to In the upper casing;

According to the design requirements of the sound insulation capacity, the lower cover and the upper cover are then placed in overlap;

According to the sound insulation requirements of the use position, increase the number of sound insulation units on the sound insulation unit in the lower casing and fix them by bonding;

Finally, set the upper casing cover on the lower casing and use a hammer to strike to fit the inner wall of the upper casing cover and the rubber partition until the waterproof and fireproof high-density board in the upper casing abuts against the sound insulation unit; The rubber partition is used to break the acoustic bridge between the upper casing and the upper casing;

Among them, according to the sound insulation requirements of the design requirements, the number of sound insulation units used is determined by the following formula:

R=13lg(m 1 +m 2 )+11.5+ΔR(m 1 +m 2 ≤200kg/m 2 ).
The standardized sound insulation module according to claim 3, wherein the rubber partition is provided with a guide slope on one side of the upper casing in the installation direction, and the rubber partition surface is provided with convex patterns.
A module detection device, characterized in that it is used to detect the sound insulation module of any one of claims 1-4, comprising a first box, a second box, and a third box that are arranged in sequence. A box body and the third box body are located on opposite sides of the second box body, and are both detachably connected to the second box body through a connecting component; the first box body is provided with a first communication Hole, the third box body is provided with a third communication hole, the first communication hole and the third communication hole are both facing the second box body; the second box body is penetrated with a second communication hole Hole, the center line of the first communication hole, the center line of the second communication hole and the center line of the third communication hole are all arranged collinearly; a noise source is placed in the first box, and the second A monitor is placed in the three boxes, and the second box is detachably connected to the sound insulation module through a locking component;

The locking assembly includes a linkage rod, a bottom plate, a handle, and a locking rod. The bottom plate is attached to the inner wall of the second box body, and the handle is hinged with the bottom plate; The rod is rotationally connected to drive the locking rod to contact or disengage from the sound insulation module; one end of the linkage rod is hinged with the second box body, and the other end is fixedly connected with the bottom plate.
The module detection device of claim 5, wherein the free end of the locking rod is threadedly connected with a telescopic rod, and the telescopic rod can be extended or inserted from the locking rod to adjust the telescopic rod. With respect to the distance between the locking rod, the free end of the telescopic rod is provided with an abutting block.
The module detection device according to claim 5, wherein the bottom plate is connected to the second box body through a limiting component, and the limiting component includes a limiting block and a limiting block matching the limiting block. Position groove; The position limit block is fixed to the bottom plate, and the inner wall of the second box body is recessed to form the position limit groove.
The module detection device according to claim 5, wherein the first box body and the third box body both comprise an outer frame and an inner frame, and the inner frame is embedded inside the outer frame, And a shock-absorbing block is arranged between the corner of the inner frame and the corner of the outer frame at the corresponding position.
The module detection device according to claim 5, wherein both ends of the second box body are provided with sealing layers to increase the size of the second box body, the first box body and the first box body. For the airtightness between the three boxes, the sealing layer includes several split sealing strips, and the sealing strips are hollow semi-cylinders.
The module detection device according to claim 5, wherein the connecting assembly includes a fixing seat, a handle, a lock catch and a block that cooperates with the lock catch; the fixing seat is arranged on the first box body Or on the side of the third box body, the end of the handle is rotatably connected to the fixing base through a first rotation pin, and the lock catch is rotatably connected to the middle of the handle through a second rotation pin; The clamping block is fixed on the second box body, and a clamping slot is recessed on the clamping block for embedding the lock catch.