A noise reduction wall panel for factory buildings

Abstract

A noise-reducing wall panel for a factory building belongs to the general field of building construction and includes an outer shell. The outer shell is a rectangular parallelepiped structure, and a plurality of cracks are arranged in an array at equal intervals on the front side of the outer shell. The upper and lower ends of the outer shell are open, and the upper end of the outer shell is provided with an upper cover, and the lower end of the outer shell is provided with a lower cover. The interior of the outer shell is provided with a sound insulation box, and the sound insulation box array has multiple concave lining plates, and a pair of L-shaped lining plates are provided on both sides of the sound insulation box. The sound insulation box is provided with diagonal strips, and the diagonal strips are located on the same side as the cracks. The present invention significantly improves the noise reduction effect and significantly improves the impact resistance of the wall panel through the iron outer shell, concave lining plates, and L-shaped lining plates. The fireproof performance is improved by using a plastic that is not easy to burn and does not easily smoke when burned as the preparation material of the sound insulation box, and the spread of fire can be isolated to a certain extent by the fireproof balls.

Description

Technical Field

[0001] The present invention relates to the technical field of general building construction, and in particular to a noise reduction wallboard for a factory building. Background Art

[0002] In recent years, with the acceleration of industrialization, factory noise pollution has become a significant issue affecting employee health and hindering the sustainable development of businesses. Long-term exposure to high noise levels (especially above 85dB) can lead to occupational diseases such as hearing loss, cardiovascular disease, and neurological disorders. To meet regulatory requirements such as the "Emission Standard for Ambient Noise at the Boundary of Industrial Enterprises" (GB 12348-2008), industrial plants currently employ the following noise reduction measures: First, source control: Prioritizing the use of low-noise equipment (such as low-noise fans and elevators) to reduce noise generation at its source. Second, equipment modification: Suppressing vibration noise by installing soundproof enclosures, silencers (such as exhaust duct silencers), or using vibration dampers and damping materials. Third, transmission blockage: Installing noise-reducing wall panels made of sound-absorbing materials to create a physical sound barrier.

[0003] However, key performance deficiencies in existing noise-reducing wall panels significantly limit their practical application. These deficiencies include: First, insufficient sound insulation. Traditional sound-absorbing materials (such as fiberglass and polyurethane foam) are inefficient at blocking mid- and high-frequency noise (>50dB), making them particularly vulnerable to the high-intensity impulse noise generated by equipment such as air compressors and punching machines. Second, they suffer from poor durability. The materials are susceptible to aging and hardening due to temperature and humidity fluctuations and mechanical stress, resulting in a sound absorption coefficient decay rate of up to 30%-50% over their service life. Furthermore, safety risks are significant. Most sound-absorbing materials have a fire rating below Class A and release toxic gases when burned, making them difficult to meet the fire protection requirements for industrial plants in the Code for Fire Protection Design of Buildings (GB 50016). Finally, impact resistance is weak. Existing wall panels have low structural strength and are easily damaged and deformed by forklift collisions or impacts from materials, resulting in high maintenance costs.

[0004] The above defects make it difficult for existing noise reduction wall panels to achieve long-term and safe noise control in complex industrial scenarios. There is an urgent need to develop new noise reduction materials and structural design solutions that have high sound insulation performance, durability and safety. Summary of the Invention

[0005] The present invention provides a noise reduction wall panel for a factory building to address the deficiencies of the above-mentioned prior art and solve the problems of the currently used noise reduction wall panels, such as weak impact resistance, easy aging, and poor sound insulation effect, and has strong practicality.

[0006] In order to achieve the purpose of the present invention, the following technologies are proposed:

[0007] A noise reduction wall panel for a factory building comprises an outer shell having a rectangular parallelepiped structure. A plurality of cracks are arranged in an array at equal intervals on the front side of the outer shell. The width of the cracks ranges from 0.1 mm to 0.5 mm.

[0008] Furthermore, a kit is welded on the right side of the shell, an insert is welded on the left side of the shell, a convex part is provided on the upper side of the shell, a concave part is provided on the lower side of the shell, a dovetail groove is formed inwardly concave on the kit, a dovetail head is formed outwardly protruding on the insert, an isosceles trapezoidal shell is formed outwardly protruding on the convex part, and an isosceles trapezoidal groove is formed inwardly concave on the concave part.

[0009] Furthermore, the upper and lower ends of the shell are open, the upper end of the shell is provided with an upper cover, the lower end of the shell is provided with a lower cover, and the interior of the shell is provided with a sound insulation box, which is located between the upper cover and the lower cover. The sound insulation box is arrayed with multiple concave lining plates from left to right, and a pair of L-shaped lining plates are provided on the left and right sides of the sound insulation box respectively. The concave lining plates and the L-shaped lining plates are both located inside the shell, and the front side of the sound insulation box is arrayed with oblique strips in sequence from top to bottom. The length direction of the oblique strips may have an angle with the length direction of the crack, or may be arranged in parallel so that the oblique strips are located on the same side as the crack.

[0010] Furthermore, one of the vertical sections of the concave lining is open on the outside and is formed with a plurality of inclined slots, the outer ends of the inclined slots are inclined upward or downward, the inclined strips are inserted into the inclined slots, and the concave lining is evenly distributed with a plurality of waist-shaped holes, the waist-shaped holes on the vertical section of the concave lining are vertically arranged, and the waist-shaped holes on the transverse section of the concave lining are horizontally arranged, and a side card slot is opened on the inner side of the upper end of the vertical section of the concave lining, and a first inclined surface is formed on the inner side of the upper end of the vertical section of the concave lining, and the upper end of the first inclined surface extends outward or inward.

[0011] Furthermore, a limited notch is formed at the inner end of the transverse section of the L-shaped lining, and a plurality of strip holes are distributed on the vertical section of the L-shaped lining, and the length direction of the strip holes is parallel to the vertical direction. A second inclined surface is formed at the upper end of the vertical section of the L-shaped lining, and the upper end of the second inclined surface extends outward or inward, and an end slot is formed at the inner end of the upper end of the vertical section of the L-shaped lining.

[0012] Furthermore, a pair of mutually parallel inward extension bars are welded to the upper wall of the lower cover, and the inward extension bars are passed through the lower end of the outer shell. Multiple pairs of limiting angle plates are welded to the inner walls of the inward extension bars, and the lower ends of the limiting angle plates are welded to the upper wall of the lower cover. The lower ends of the concave lining plates are inserted between every two pairs of limiting angle plates. Connecting rods are passed through the limiting angle plates on the same side, and the connecting rods are passed through the lower ends of the concave lining plates. Both ends of the connecting rods are respectively connected to nuts through threads, and L-shaped buckle plates are respectively welded to both ends of the upper wall of the lower cover, and the outer ends of the horizontal sections of the L-shaped buckle plates are inserted into the limiting notches.

[0013] Furthermore, the interior of the sound insulation box is arrayed with oblique partitions at equal intervals from left to right, and the oblique partitions divide the interior of the sound insulation box into multiple sound insulation chambers. Multiple support plates are provided between two adjacent oblique partitions, and the support plates are provided with multiple internal micropores. The support plates divide each sound insulation chamber into a pair of sound insulation chambers. Multiple groups of external micropores are provided on the front side wall of the sound insulation box, and each group of external micropores is connected to each sound insulation chamber located on the front side, and each group of internal micropores is connected to each sound insulation chamber located on the rear side. The diameters of the internal micropores and the external micropores are 0.1mm to 0.5mm. The sound insulation chamber is filled with multiple balls, the diameter of the balls is larger than the diameter of the inner micropores and the outer micropores, the upper end of the sound insulation box is open, and an inner ring is formed inside the open end of the sound insulation box, and there is a gap between the lower wall of the inner ring and the upper end of the inclined partition, and multiple connecting platforms are formed on the inner wall of the inner ring, and an insert ring is formed on the upper wall of the inner ring. The outer wall of the insert ring is an inclined structure, and the upper end of the outer wall of the insert ring extends inwardly. An insert block is inserted in the inner ring, and a sealing cover is provided at the upper end of the insert block. A ring groove is provided on the lower wall of the sealing cover, and the insert ring is inserted in the ring groove. A conical ring is formed on the outer periphery of the bottom of the ring groove, and the inclined surface of the conical ring abuts on the outer wall of the insert ring. A plurality of embedded openings are provided on the inner insert block, and a countersunk hole is provided at the bottom of the embedded opening. The connecting platform is inserted in the embedded opening, and a fixing screw is passed through the countersunk hole. The lower end of the fixing screw is connected to the connecting platform by a thread.

[0014] Furthermore, multiple side support plates are welded on both sides of the lower wall of the upper cover, and the lower ends of the side support plates are formed with a third inclined surface, which is tightly attached to the first inclined surface. Multiple end support plates are welded on both ends of the lower wall of the upper cover, and the lower ends of the end support plates are formed with a fourth inclined surface, which is tightly attached to the second inclined surface.

[0015] The cam is secured to the underside of the plate and has a plurality of slots therein for securing the plate to the cam, wherein the slots are secured to the underside of the plate and are adapted to engage the lower edge of the plate. The two ends of the movable concave part are connected with a support rod by threading, and the outer ends of the support rod are passed through the strip inclined hole, and two pairs of limit vertical plates are welded on the transverse plate, and each pair of limit vertical plates is located at the outer side of the inward extending convex plate.

[0016] The advantages of the above technical solution are:

[0017] The present invention first diffracts the noise through the cracks, thereby consuming most of the energy of the noise entering the shell, thereby weakening its ability to continue to propagate outward. The noise entering the shell will then be reflected by the oblique bars, causing it to return to the sound source. During the return process, phase interference will be formed, thereby secondary weakening of the noise. At the same time, the noise entering between the oblique bars will also be partially diffracted, and the diffracted noise will be diffracted again into the sound insulation box through the outer micropores. When these noises that have been diffracted multiple times come into contact with the spherical surfaces of many balls, noise reflection and phase interference will occur. In addition, these noises will be diffracted when passing through the gaps between the balls. Finally, part of the noise will pass through the inner micropores and continue to diffract, reflect, and phase interfere to achieve the purpose of noise reduction. In this way, when noise is emitted from the sound source, it will undergo multiple diffractions to greatly weaken the noise's ability to penetrate the wall, and noise reduction is achieved in a complementary manner through reflection and phase interference.

[0018] The present invention significantly improves the impact resistance of the wall panel by using an iron shell, a concave lining plate and an L-shaped lining plate.

[0019] The present invention uses plastic that is not easy to burn and does not easily emit smoke when burned as the preparation material of the sound insulation box to improve the fire resistance, and the fireproof balls can isolate the spread of fire to a certain extent.

[0020] The main noise reduction components of the present invention are made of iron products that have been treated with anti-corrosion, plastics with excellent anti-aging performance, and concrete and other materials that can maintain effectiveness for a long time, thereby extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] Figure 1 A first-perspective stereoscopic structural diagram of a noise reduction wall panel for a factory building is shown.

[0023] Figure 2 A second perspective stereoscopic structure diagram of one embodiment is shown.

[0024] Figure 3 It shows a three-dimensional structural diagram of the housing, upper cover and lower cover.

[0025] Figure 4 Shows a three-dimensional structural diagram of the interior of the housing.

[0026] Figure 5 A schematic diagram of the connection between the concave lining plate, the L-shaped lining plate and the lower cover is shown.

[0027] Figure 6 A schematic diagram of the connection between the concave lining plate, the L-shaped lining plate and the sound insulation box is shown.

[0028] Figure 7 Shown is a three-dimensional diagram of the internal structure of the sound insulation box.

[0029] Figure 8 Shown is a three-dimensional structural diagram of the sealing cover.

[0030] Figure 9 Shows a three-dimensional structural diagram of the connecting mechanism and the upper cover.

[0031] Figure 10 Shows a three-dimensional structural diagram of the connecting mechanism.

[0032] Description of reference numerals:

[0033] Shell 1, crack 10, upper cover 11, lower cover 12, inward extension bar 120, limiting angle plate 121, connecting rod 122, L-shaped buckle plate 123, kit 2, dovetail groove 20, insert 3, dovetail head 30, convex part 4, isosceles trapezoidal shell 40, concave part 5, isosceles trapezoidal groove 50, sound insulation box 6, limiting convex part 600, concave kit 601, outer micropore 602, oblique partition 603, support plate 604, inner micropore 605, inner ring 606, connecting platform 607, insert ring 608, sealing cover 609, inner insert block 610, inner embedding port 611, annular groove 612, tapered ring 613, countersunk hole 614, L-shaped lining plate 7, end card slot 71, second inclined surface 72, limiting notch 73, strip hole 74, concave Lining plate 8, waist-shaped hole 80, inclined notch 81, inclined strip 82, side clamping groove 83, first inclined surface 84, connecting mechanism 9, screw rod 900, side support plate 901, third inclined surface 902, end support plate 903, fourth inclined surface 904, transverse plate 905, outward arm 906, strip guide hole 907, restraining nut 908, guide screw 909, side clamping plate 910, side groove 911, folding plate 912, waist-shaped inclined hole 913, action screw 914, limit screw 915, end clamping plate 916, end groove 917, welding vertical plate 918, waist-shaped guide hole 919, limit vertical plate 920, concave part 921, inward protruding convex plate 922, strip-shaped inclined hole 923, support rod 924, movable concave part 925. DETAILED DESCRIPTION

[0034] like Figure 1 As shown, a noise reduction wall panel for a factory building is installed on the wall of the factory building. The panel includes a shell 1, which has a rectangular parallelepiped structure. The surfaces formed by the length and width directions of the shell 1 are the front and rear side surfaces, the surfaces formed by the length and thickness directions of the shell 1 are the left and right side surfaces, and the surfaces formed by the width and thickness directions of the shell 1 are the upper and lower end surfaces. The length and width dimensions of the shell 1 are greater than the thickness dimension of the shell 1, the length and width dimensions of the shell 1 are equal, or the length dimension of the shell 1 is greater than the width dimension of the shell 1. A plurality of cracks 10 are formed in an array at equal intervals on the front side of the shell 1. The width of the cracks 10 ranges from 0.1 mm to 0.5 mm. When sound waves generated by a noise generator in the factory building pass through the cracks 10, the sound waves will diffract. This diffraction consumes a large amount of the sound wave's energy, thereby weakening the sound wave's ability to continue to propagate outward.

[0035] like Figure 1 and Figure 2As shown, a sleeve 2 is welded to the right side of the shell 1, an insert 3 is welded to the left side of the shell 1, a convex part 4 is provided on the upper side of the shell 1, and a concave part 5 is provided on the lower side of the shell 1. A dovetail groove 20 is formed inwardly on the sleeve 2, a dovetail head 30 is formed outwardly on the insert 3, an isosceles trapezoidal shell 40 is formed outwardly on the convex part 4, and an isosceles trapezoidal groove 50 is formed inwardly on the concave part 5. If shells 1 are connected to each other on all four sides of a shell 1, for the sake of convenience, the shell 1 is referred to as an intermediate shell 1, the shell 1 at the upper end is referred to as shell 1 No. 1, the shell 1 at the lower end is referred to as shell 1 No. 2, the shell 1 at the left is referred to as shell 1 No. 3, and the shell 1 at the right is referred to as shell 1 No. 4. When fixed, the isosceles trapezoidal shell 40 on the middle shell 1 is inserted into the isosceles trapezoidal groove 50 of the No. 1 shell 1, the isosceles trapezoidal shell 40 of the No. 2 shell 1 is inserted into the isosceles trapezoidal groove 50 of the middle shell 1, the dovetail head 30 on the middle shell 1 is inserted into the dovetail groove 20 of the No. 3 shell 1, and the dovetail head 30 of the No. 4 shell 1 is inserted into the dovetail groove 20 on the middle shell 1.

[0036] like Figure 3 and Figure 4 As shown, the upper and lower ends of the shell 1 are open, the upper end of the shell 1 is provided with an upper cover 11, the lower end of the shell 1 is provided with a lower cover 12, and the interior of the shell 1 is provided with a sound insulation box 6, which is located between the upper cover 11 and the lower cover 12. The sound insulation box 6 is arrayed with a plurality of concave lining plates 8 from left to right, and a pair of L-shaped lining plates 7 are provided on the left and right sides of the sound insulation box 6. The concave lining plates 8 and the L-shaped lining plates 7 are both located inside the shell 1. The concave lining plates 8 and the L-shaped lining plates 7 play a supporting and protective role on the sound insulation box 6, and when the shell 1 is subjected to impact, the shell 1 can be prevented from being deformed. To prevent damage to the sound insulation box, the front side of the sound insulation box 6 is provided with an array of slanted bars 82 from top to bottom. The slanted bars 82 are located on the same side as the cracks 10, are arranged horizontally, and have a one-to-one correspondence with the cracks 10. These bars not only block dust but also reduce the energy of the noise waves passing through the cracks 10. When the sound waves enter the housing 1, they are reflected by the slanted bars 82 and diffracted again. These two large-scale diffractions further consume the energy of the sound waves, thereby reducing the propagation of noise. The housing 1, concave lining 8, L-shaped lining 7, upper cover 11, and lower cover 12 are all made of iron, thereby enhancing the strength of the wallboard and providing a protective barrier for the sound insulation box 6. The sound insulation box 6 is made of polyvinyl chloride plastic containing ammonium octamolybdate. This material improves the flame retardancy of the sound insulation box 6 and produces less smoke when burned. In addition, the use of this material facilitates the molding process of the sound insulation box 6 and reduces the weight of the entire wall panel.

[0037] like Figure 4 and Figure 5As shown, one of the vertical sections of the concave lining plate 8 is openly formed with a plurality of inclined slots 81. The outer ends of the inclined slots 81 are inclined upward or downward. Diagonal bars 82 are inserted into the inclined slots 81 to secure the diagonal bars 82. The diagonal bars 82 also secure the concave lining plates 8 and are spot welded to the concave lining plate 8. The concave lining plate 8 is uniformly distributed with a plurality of waist-shaped holes 80. The waist-shaped holes 80 on the vertical section of the concave lining plate 8 are arranged vertically, while the waist-shaped holes 80 on the transverse section of the concave lining plate 8 are arranged horizontally. When the wall panel is impacted and the shell 1 is deformed, the waist-shaped holes 80 can absorb the energy of the impact, thereby effectively protecting the sound insulation box 6. The upper end of the vertical section of the concave lining plate 8 is openly formed with a side slot 83. The upper end of the vertical section of the concave lining plate 8 is formed with a first inclined surface 84, the upper end of which extends outward or inward.

[0038] like Figure 4 and Figure 6 As shown, the inner end of the transverse section of the L-shaped lining plate 7 is open to form a limiting notch 73, and the vertical section of the L-shaped lining plate 7 is evenly distributed with a plurality of strip holes 74. The length direction of the strip holes 74 is parallel to the vertical direction. The strip holes 74 further enhance the protection effect of the sound insulation box 6. The upper end of the vertical section of the L-shaped lining plate 7 is formed with a second inclined surface 72. The upper end of the second inclined surface 72 extends outward or inward, and the inner upper end of the vertical section of the L-shaped lining plate 7 is open to form an end slot 71.

[0039] like Figure 4 and Figure 5 As shown, a pair of mutually parallel inward extension bars 120 are welded to the upper wall of the lower cover 12. The inward extension bars 120 extend through the lower end of the outer shell 1. Multiple pairs of limiting angle plates 121 are welded to the inner wall of the inward extension bars 120. The lower ends of the limiting angle plates 121 are welded to the upper wall of the lower cover 12. The limiting angle plates 121 reinforce the fixing of the inward extension bars 120, while the inward extension bars 120 are used to enhance the limiting effect between the lower cover 12 and the outer shell 1. The lower end of the concave lining plate 8 is inserted between each pair of limiting angle plates 121. The limiting angle plates 121 on the same side are penetrated by connecting rods 122. The connecting rods 122 extend through the lower end of the concave lining plate 8. The two ends of the connecting rods 122 are respectively connected to nuts through threads. L-shaped gussets 123 are welded to the two ends of the upper wall of the lower cover 12. The outer ends of the horizontal sections of the L-shaped gussets 123 are inserted into the limiting notches 73.

[0040] like Figure 4 and Figure 6As shown, the bottom of the sound insulation box 6 is formed with multiple pairs of limiting protrusions 600, and the transverse section of the concave lining plate 8 is clamped between each pair of limiting protrusions 600. A pair of concave sleeves 601 are also formed at each end of the bottom of the sound insulation box 6, and the transverse section of the L-shaped lining plate 7 is inserted into the concave sleeves 601. The limiting protrusions 600 and the concave sleeves 601 are used to improve the connection and limiting effect between the sound insulation box 6 and the L-shaped lining plate 7, and also facilitate the connection and installation of the sound insulation box 6, the L-shaped lining plate 7, and the concave lining plate 8.

[0041] like Figure 6-Figure 7As shown, the interior of the sound insulation box 6 is arranged in an array of equidistant oblique partitions 603 from left to right. The oblique partitions 603 divide the interior of the sound insulation box 6 into multiple sound insulation chambers. A plurality of support plates 604 are provided between two adjacent oblique partitions 603. The oblique partitions 603 and the support plates 604 provide internal support for the sound insulation box 6 and enhance the structural strength of the sound insulation box 6. The support plates 604 are provided with a plurality of inner micropores 605. The support plates 604 divide each sound insulation chamber into a pair of sound insulation chambers. A plurality of groups of outer micropores 602 are provided on the front side wall of the sound insulation box 6. Each group of outer micropores 602 is connected to each sound insulation chamber located on the front side, and each group of inner micropores 605 is connected to each sound insulation chamber located on the rear side. The sound insulation chamber is filled with a plurality of spherical balls, the diameter of which is larger than the diameter of the inner micropores 605 and the outer micropores 602 to prevent them from falling. Balls are used as fillers. When the noise energy is large, the noise can cause these balls to vibrate slightly, and the vibration can absorb the noise energy, so as to avoid reducing the noise reduction effect through the vibration of the wall panel material. Specifically, the balls are spherical particles prepared by mixing boiler ash, fly ash, slag, kaolin and silicate cement. The use of this material can improve the strength of the wall panel and facilitate granulation processing. In addition, this material has excellent fire resistance. When the balls made of this material are filled into the soundproof room, the gaps formed by the stacking will be diffracted multiple times when the sound waves enter, and the spherical surface of the balls themselves can reflect the sound waves at multiple angles. In this way, phase interference occurs between the diffracted sound waves and the emitted sound waves, or phase interference occurs between the sound waves emitted by different balls. Therefore, the presence of the balls will significantly improve the sound insulation and absorption effect of the sound insulation box 6 on noise. In addition, the sound waves diffract from the cracks 10 and enter between the oblique strips 82, and then the sound waves will be reflected and partially diffracted again. Some sound waves enter the closed cavity of the outer shell 1 and are reflected multiple times and blocked by the concave lining 8, so that their propagation energy is exhausted. Some sound waves will diffract toward the soundproofing chamber on the front side through the outer micropores 602, so that the propagation energy of the noise is weakened again. Most of the balls that enter the soundproofing chamber on the front side will disappear in the soundproofing chamber on the front side due to reflection and phase interference. Some noise will also diffract through the inner micropores 605 and enter the soundproofing chamber on the rear side, and through the balls inside it, the noise will lose the ability to propagate outward. The upper end of the sound insulation box 6 is open, and an inner ring 606 is formed inside the open end of the sound insulation box 6. There is a gap between the lower wall of the inner ring 606 and the upper end of the inclined partition 603. A plurality of connecting platforms 607 are formed on the inner wall of the inner ring 606. An insert ring 608 is formed on the upper wall of the inner ring 606. The outer wall of the insert ring 608 is an inclined structure, and the upper end of the outer wall of the insert ring 608 extends inwardly. Figure 8As shown, an insert block 610 is inserted into the inner ring 606. A sealing cover 609 is provided at the upper end of the insert block 610. A ring groove 612 is defined on the lower wall of the sealing cover 609. The insert ring 608 is inserted into the ring groove 612. A tapered ring 613 is formed on the outer periphery of the bottom of the ring groove 612. The inclined surface of the tapered ring 613 abuts against the outer wall of the insert ring 608, thereby enhancing the sealing effect between the insert ring 608 and the sealing cover 609, thereby improving the sound insulation effect. The insert block 610 has multiple internal insertion openings 611, each with a countersunk hole 614 at its bottom. The connecting platform 607 is inserted into the internal insertion openings 611. The countersunk hole 614 is provided with a fixing screw, the lower end of which is threadedly connected to the connecting platform 607.

[0042] like Figure 4 、 Figure 5 and Figure 9-10 As shown, multiple side support plates 901 are welded on both sides of the lower wall of the upper cover 11, and the lower ends of the side support plates 901 are formed with a third inclined surface 902. Multiple end support plates 903 are welded on both ends of the lower wall of the upper cover 11, and the lower ends of the end support plates 903 are formed with a fourth inclined surface 904. When the outer shell 1, the upper cover 11 and the lower cover 12 are fixed, the third inclined surface 902 is tightly attached to the first inclined surface 84, and the fourth inclined surface 904 is tightly attached to the second inclined surface 72, thereby fixing the upper ends of the concave liner 8 and the L-shaped liner 7.

[0043] like Figure 4 As shown, a connecting mechanism 9 is provided on the lower side of the upper cover 11. Figure 9 and Figure 10As shown, the connecting mechanism 9 includes a transverse plate 905 welded to the lower wall of the upper cover 11 through a plurality of welded vertical plates 918. A plurality of outrigger arms 906 are formed on both sides of the transverse plate 905 along its length direction. A plurality of strip guide holes 907 are provided on the outrigger arms 906. Waist-shaped guide holes 919 are respectively provided at both ends of the length direction of the transverse plate 905. The length direction of the waist-shaped guide holes 919 is perpendicular to the length direction of the strip guide holes 907, and the length direction of the waist-shaped guide holes 919 is parallel to the length direction of the transverse plate 905. At least one pair of limit screws 915 is passed through each waist-shaped guide hole 919. The lower end of the limit screw 915 at the same end is connected to the end clamping plate 916 through a thread, and a pair of end grooves 917 are opened at the outer end of the end clamping plate 916. The upper end of the L-shaped liner 7 is inserted into the end groove 917, and the end clamping plate 916 is inserted into the end clamping groove 71. A guide screw 909 is movable in the strip guide hole 907. The lower end of the guide screw 909 on the same side is connected to the side clamping plate 910 through a thread, and the side clamping groove 83 is inserted into the side clamping plate 910. The side clamping plate 910 is opened on the outside to form a side groove 911. The upper end of the vertical section of the concave liner 8 is inserted into the side groove 911. The two ends of the plate 910 are bent with a folding plate 912, which is located on the upper side of the end card plate 916. The outer end of the folding plate 912 is provided with a waist-shaped inclined hole 913, and the outer end of the waist-shaped inclined hole 913 extends inwardly. An action screw 914 is passed through the waist-shaped inclined hole 913. The lower end of the action screw 914 at the same end is connected to the end card plate 916 through a thread. The upper wall of the side card plate 910 is welded with a concave part 921, and the inner wall of the concave part 921 is welded with an inwardly extending convex plate 922. The inwardly extending convex plate 922 is provided with a strip-shaped inclined hole 923. The length direction of the strip-shaped inclined hole 923 is parallel to the vertical There is an angle between the straight directions, and a screw rod 900 is rotatably provided on the horizontal plate 905. The upper end of the screw rod 900 is passed through the upper cover 11, and the lower end of the screw rod 900 is threadedly connected to a pair of constraint nuts 908. The constraint nuts 908 are located on the upper and lower sides of the horizontal plate 905. A movable recess 925 is threadedly connected to the screw rod 900, and the two ends of the movable recess 925 are threadedly connected to a support rod 924. The outer end of the support rod 924 is passed through the strip-shaped inclined hole 923. Two pairs of limiting vertical plates 920 are welded on the horizontal plate 905, and each pair of limiting vertical plates 920 is located on the outer side of the inwardly extending convex plate 922.

[0044] When assembling this embodiment, the balls are first filled into each soundproofing chamber, and then the sealing cover 609 is placed on the open end of the sound insulation box 6. When the cover is placed, the insert ring 608 is inserted into the ring groove 612 and then fixed with fixing screws. After fixing, the upper surface of the sealing cover 609 is flush with the upper end surface of the sound insulation box 6.

[0045] Then, the concave lining plate 8 is put on the sound insulation box 6. When putting on, the horizontal section of the concave lining plate 8 needs to be clamped between each pair of limiting protrusions 600. After putting on, the oblique strip 82 is inserted into the inclined groove 81 and fixed to the concave lining plate 8 by spot welding.

[0046] The lower end of the concave lining plate 8 is then inserted into each set of retaining angle plates 121. Connecting rods 122 are then threaded through the lower end of the concave lining plate 8 and secured with nuts at both ends. Furthermore, the L-shaped lining plates 7 are buckled onto the left and right sides of the sound insulation box 6, with the horizontal sections of the L-shaped lining plates 7 inserted into the concave sleeves 601. During this buckling process, the outer ends of the horizontal sections of the L-shaped buckle plates 123 are inserted into the retaining notches 73, thus completing the connection and fixation between the lower cover 12 and the sound insulation box 6.

[0047] Then the shell 1 is put on the sound insulation box 6, and the lower end of the shell 1 is in contact with the lower wall of the lower cover 12. When put on, the third inclined surface 902 is close to the first inclined surface 84, and the fourth inclined surface 904 is close to the second inclined surface 72. If the upper ends of the first inclined surface 84 and the second inclined surface 72 are tilted inward, the concave lining plate 8 and the L-shaped lining plate 7 can be ensured to be close to the sound insulation box 6 as the upper cover 11 is put on. If the upper ends of the first inclined surface 84 and the second inclined surface 72 are tilted outward, the concave lining plate 8 and the L-shaped lining plate 7 can be close to the inner wall of the shell 1. Therefore, no matter what the structure of the first inclined surface 84 and the second inclined surface 72 is, the stability after fixation can be improved.

[0048] Then the upper cover 11 is placed on the upper end of the outer shell 1. When the cover is placed, the lower wall of the upper cover 11 needs to act on the upper end of the outer shell 1, and then the screw rod 900 is rotated through the hexagonal groove set on the outer end of the screw rod 900. The rotation of the screw rod 900 will drive the movable concave part 925 to move downward. When the movable concave part 925 moves downward, it will drive the support rod 924 on it to move downward. As the support rod 924 moves downward, it will act on the strip-shaped inclined hole 923, thereby causing the concave part 921 and the side clamping plate 910 where it is located to move outward, and the side groove 911 of the side clamping plate 910 is inserted into the side clamping groove 83 of the concave liner 8. When the side clamp 910 moves outward, it can act on the action screw 914 through the waist-shaped inclined hole 913 thereon, thereby causing the end clamp 916 to move outward at the same time, and the end groove 917 of the end clamp 916 is inserted into the end clamping groove 71 of the L-shaped lining plate 7, so that the upper cover 11, the outer shell 1, the lower cover 12 and the sound insulation box 6 can be quickly connected and fixed through a screw rod 900.

[0049] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. It is apparent that various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the present invention. Thus, the present invention is intended to encompass such modifications and variations as long as they fall within the scope of the claims and their equivalents.

Claims

1. A noise reduction wall panel for a factory building, characterized in that: The housing (1) is a rectangular parallelepiped structure, and a plurality of cracks (10) are formed on the front side of the housing (1) in an array at equal intervals. The upper and lower ends of the shell (1) are open, the upper end of the shell (1) is provided with an upper cover (11), the lower end of the shell (1) is provided with a lower cover (12), and the interior of the shell (1) is provided with a sound insulation box (6), which is located between the upper cover (11) and the lower cover (12); The interior of the sound insulation box (6) is arrayed with oblique partitions (603) at equal intervals, and the oblique partitions (603) divide the interior of the sound insulation box (6) into a plurality of sound insulation chambers. A plurality of support plates (604) are provided between two adjacent oblique partitions (603), and the support plates (604) are provided with a plurality of inner micropores (605). The support plates (604) divide each sound insulation chamber into a pair of anechoic chambers. A plurality of groups of outer micropores (602) are provided on the front side wall of the sound insulation box (6), and each group of outer micropores (602) is connected to each anechoic chamber located on the front side, and each group of inner micropores (605) is connected to each anechoic chamber located on the rear side. The anechoic chambers are filled with a plurality of spheres, and a sealing cover (609) is provided at the upper end of the sound insulation box (6); The sound insulation box (6) has a plurality of concave lining plates (8) in an array. A pair of L-shaped lining plates (7) are provided on both sides of the sound insulation box (6). The concave lining plates (8) and the L-shaped lining plates (7) are both located inside the shell (1). The front side of the sound insulation box (6) is provided with oblique strips (82) in an array from top to bottom. The oblique strips (82) and the crack (10) are located on the same side. A plurality of inclined slots (81) are formed on the outer side of one vertical section of the concave lining plate (8), and the inclined strips (82) are inserted into the inclined slots (81). A side slot (83) is formed on the inner side of the upper end of the vertical section of the concave lining plate (8), and a first inclined surface (84) is formed on the inner side of the upper end of the vertical section of the concave lining plate (8).

2. The noise reduction wall panel for factory buildings according to claim 1, characterized in that: A sleeve (2) is welded to the right side of the housing (1), an insert (3) is welded to the left side of the housing (1), a convex part (4) is provided on the upper side of the housing (1), and a concave part (5) is provided on the lower side of the housing (1); A dovetail groove (20) is formed inwardly on the kit (2); A dovetail head (30) is formed on the insert (3) in a manner protruding outward; An isosceles trapezoidal shell (40) is formed on the protruding piece (4) so as to protrude outward; An isosceles trapezoidal groove (50) is formed inwardly on the concave part (5).

3. The noise reduction wall panel for factory buildings according to claim 1, characterized in that: A plurality of waist-shaped holes (80) are evenly distributed on the concave lining plate (8), the waist-shaped holes (80) on the vertical section of the concave lining plate (8) are arranged vertically, and the waist-shaped holes (80) on the transverse section of the concave lining plate (8) are arranged horizontally.

4. The noise reduction wall panel for factory buildings according to claim 1, characterized in that: The inner end of the transverse section of the L-shaped lining plate (7) is openly formed with a limited notch (73), the vertical section of the L-shaped lining plate (7) is uniformly distributed with a plurality of strip holes (74), the length direction of the strip holes (74) is parallel to the vertical direction, the upper end of the vertical section of the L-shaped lining plate (7) is formed with a second inclined surface (72), and the inner end of the upper end of the vertical section of the L-shaped lining plate (7) is openly formed with an end slot (71).

5. The noise reduction wall panel for factory buildings according to claim 4, characterized in that: A pair of mutually parallel inward extension bars (120) are welded to the upper wall of the lower cover (12), the inward extension bars (120) are passed through the lower end of the outer shell (1), and a plurality of pairs of limiting angle plates (121) are welded to the inner wall of the inward extension bars (120), the lower ends of the limiting angle plates (121) are welded to the upper wall of the lower cover (12), the lower ends of the concave lining plates (8) are inserted between each two pairs of limiting angle plates (121), and a connecting rod (122) is passed through the limiting angle plates (121) on the same side, the connecting rod (122) is passed through the lower end of the concave lining plates (8), and the two ends of the connecting rod (122) are respectively connected to nuts by screw threads, and L-shaped buckle plates (123) are respectively welded to the two ends of the upper wall of the lower cover (12), and the outer ends of the horizontal sections of the L-shaped buckle plates (123) are inserted into the limiting notches (73).

6. The noise reduction wall panel for factory buildings according to claim 4, characterized in that: A plurality of side support plates (901) are welded to both sides of the lower wall of the upper cover (11), a third inclined surface (902) is formed at the lower end of each side support plate (901), and the third inclined surface (902) is in close contact with the first inclined surface (84). A plurality of end support plates (903) are welded to both ends of the lower wall of the upper cover (11), a fourth inclined surface (904) is formed at the lower end of each end support plate (903), and the fourth inclined surface (904) is in close contact with the second inclined surface (72).

7. The noise reduction wall panel for factory buildings according to claim 1, characterized in that: The sound insulation box (6) is formed with an inner ring (606), and a plurality of connecting platforms (607) are formed on the inner wall of the inner ring (606). An insert ring (608) is formed on the upper wall of the inner ring (606). The outer wall of the insert ring (608) is an inclined structure, and the upper end of the outer wall of the insert ring (608) extends inwardly. An insert block (610) is inserted into the inner ring (606), and the upper end of the insert block (610) is provided on the sealing cover (609). The lower wall of the sealing cover (609) is provided with a ring groove (612). The insert ring (60 8) inserted into the annular groove (612), the outer periphery of the bottom of the annular groove (612) is formed with a tapered ring (613), the inclined surface of the tapered ring (613) is in contact with the outer wall of the insert ring (608), a plurality of embedded openings (611) are provided on the insert block (610), the bottom of the embedded openings (611) is provided with countersunk holes (614), the connecting platform (607) is inserted into the embedded openings (611), a fixing screw is passed through the countersunk hole (614), and the lower end of the fixing screw is connected to the connecting platform (607) by a thread.

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