Thick sheet combined type silencer with wind head

Abstract

The utility model relates to the technical field of silencers, and discloses a thick sheet composite silencer with a wind head, which comprises a frame, and further comprises thick silencing sheets and thin silencing sheets which are arranged on the inner side of the frame in a staggered manner. According to the utility model, the thick silencing sheets and the thin silencing sheets are arranged in a staggered manner to reduce the clear distance of the thick silencing sheets and improve the silencing capacity of high frequency, so that the broadband silencer is formed, the thin silencing sheets not only greatly improve the silencing capacity of medium and high frequency, but also greatly improve the silencing capacity of low frequency, and the noise reduction performance of the silencer is improved; a sliding button is pressed to push a transmission block to move and drive a limiting block to rotate along a rotating shaft, so that one end of the limiting block is separated from the interior of a limiting groove, a second spring pushes a connecting block to be separated from the interior of a shell through resilience force, a positioning block slides away from the inner side of a positioning groove along with the connecting block, the connecting block loses limitation, and then the frame is disassembled. And the maintenance difficulty of the device is reduced.

Description

Technical Field

[0001] This utility model relates to the field of silencer technology, specifically a thick-plate composite silencer with a fan-shaped head. Background Technology

[0002] Composite silencers are devices designed for industrial noise reduction. They achieve noise reduction through various methods such as frequency shifting via small holes and sound absorption. They are widely used in various industrial fields to control noise pollution.

[0003] Existing thick-plate composite silencers with a strong airflow characteristic are typically composed of multiple identical sound-absorbing plates. This results in a limited silencing frequency range, where high frequencies and mid-to-low frequencies are not significantly attenuated under high-volume silencing conditions, greatly reducing the silencer's performance. Furthermore, the silencer's performance gradually declines over time, with issues such as reduced noise reduction or increased exhaust resistance. To restore its performance, the silencer needs to be disassembled for repair or replacement. However, silencers are usually bolted to industrial equipment, requiring tools to remove the bolts one by one during maintenance. This cumbersome process takes a considerable amount of time and increases the difficulty of maintaining the device. Utility Model Content

[0004] The purpose of this invention is to provide a thick composite silencer with a strong wind head, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a thick-plate composite silencer with a fan head, comprising a frame, a connecting block fixedly connected to the outer side of the frame, an industrial device disposed on one side of the frame, and a housing fixedly connected to the outer side of the industrial device, and further comprising:

[0006] Thick and thin sound-absorbing plates are staggered inside the frame. The thick sound-absorbing plates have a filling component inside, and the thick and thin sound-absorbing plates each have a wind head body on their outer sides.

[0007] A positioning component is provided on the outside of the connecting block and the outer shell. A rotating shaft is provided on the inside of the outer shell. A fixing component for limiting the connecting block is provided on the outside of the rotating shaft. A transmission component is provided on the outside of the fixing component. An adjustment component is provided on the outside of the transmission component. Two sets of second springs for pushing the connecting block out of the limiting position are provided on the inner wall of the outer shell.

[0008] Preferably, the filling component includes two sets of glass wool symmetrically arranged on both sides inside the thick sound-absorbing sheet, with an air layer between the two sets of glass wool symmetrically arranged.

[0009] Preferably, the outer side of the thick sound-absorbing sheet and the thin sound-absorbing sheet is made of perforated plate material, and the inner side of the thin sound-absorbing sheet is completely filled with glass silk.

[0010] Preferably, the positioning assembly comprises a positioning block fixed to the outer side of the connecting block, the outer side of the shell is provided with a positioning groove, and the outer side of the positioning block is in sliding connection with the inner side of the positioning groove.

[0011] Preferably, the fixing assembly comprises a limiting block rotating on the outer side of the rotating shaft, and the outer side of the connecting block is provided with a limiting groove.

[0012] Preferably, the transmission assembly comprises a transmission block fixed to the outer side of the limiting block, and one side of the transmission block is provided with a first spring.

[0013] Preferably, the adjusting assembly comprises a sliding rail fixed to the inner side of the shell, the outer side of the sliding rail is in sliding connection with a sliding knob, and one side of the sliding knob is in movable connection with one side of the transmission block.

[0014] Compared with the prior art, the device has the following beneficial effects:

[0015] The thick sound-absorbing sheet and the thin sound-absorbing sheet are staggered to reduce the net distance of the thick sound-absorbing sheet and improve the high-frequency sound-absorbing amount, so as to combine a wideband sound absorber, the thin sound-absorbing sheet greatly improves the medium-high frequency sound-absorbing amount, and the low-frequency sound-absorbing amount is also greatly improved, therefore, the staggered arrangement of the two kinds of sound-absorbing sheets improves the noise reduction performance of the sound absorber; by pressing the sliding knob, the transmission block is driven to move and drive the limiting block to rotate along the rotating shaft, so that one end of the limiting block is separated from the inside of the limiting groove, and the second spring drives the connecting block to separate from the inside of the shell through the rebound force, the positioning block slides out of the inner side of the positioning groove together with the connecting block, the connecting block loses the limiting, and the frame is immediately disassembled, and the difficulty of device maintenance is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A structure schematic view of a preferred embodiment of the thick sheet composite sound absorber with a wind head is provided in the utility model.

[0017] Figure 2 A frame cross section structure schematic view is provided in the utility model.

[0018] Figure 3 A filling assembly structure schematic view is provided in the utility model.

[0019] Figure 4 A fixing assembly structure schematic view is provided in the utility model.

[0020] In the figure: 1, frame; 2, connecting block; 3, industrial equipment; 4, shell; 5, thick sound-absorbing sheet; 6, thin sound-absorbing sheet; 7, filling assembly; 71, glass silk; 72, air layer; 8, positioning assembly; 81, positioning block; 82, positioning groove; 9, rotating shaft; 10, fixing assembly; 101, limiting block; 102, limiting groove; 11, transmission assembly; 111, transmission block; 112, first spring; 12, adjusting assembly; 121, sliding rail; 122, sliding button; 13, second spring; 14, wind head body. DETAILED DESCRIPTION

[0021] 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.

[0022] Please refer to Figures 1-4 As shown in the figure, a thick sheet composite sound absorber with a wind head comprises a frame 1, the outer side of the frame 1 is fixedly connected with a connecting block 2, by arranging the connecting block 2, when the limiting block 101 enters the limiting groove 102 in the inner side thereof, the position is fixed, when it is separated from the locking of the limiting block 101, the frame 1 can be detached from one side of the industrial equipment 3; one side of the frame 1 is provided with the industrial equipment 3, the outer side of the industrial equipment 3 is fixedly connected with a shell 4, further comprising: the thick sound-absorbing sheet 5 and the thin sound-absorbing sheet 6 arranged alternately in the inner side of the frame 1, by arranging the thick sound-absorbing sheet 5 and the thin sound-absorbing sheet 6, the thickness of the two kinds of sound-absorbing sheets is different, the thick sound-absorbing sheet 5 and the thin sound-absorbing sheet 6 are arranged alternately, which has positive significance for improving the full-band noise reduction amount of the sound absorber; the inner side of the thick sound-absorbing sheet 5 is provided with a filling assembly 7, the outer side of the thick sound-absorbing sheet 5 and the thin sound-absorbing sheet 6 is provided with a wind head body 14, by arranging the wind head body 14, it can effectively reduce the speed of airflow, thereby reducing the generation of noise, which is conducive to guiding airflow to pass through the sound absorber more stably; the positioning assembly 8 is arranged on the outer side of the connecting block 2 and the shell 4, the inner side of the shell 4 is provided with a rotating shaft 9, by arranging the rotating shaft 9, the limiting block 101 can rotate with the rotating shaft 9 as the center point; the outer side of the rotating shaft 9 is provided with a fixing assembly 10 for limiting the connecting block 2, the outer side of the fixing assembly 10 is provided with a transmission assembly 11, the outer side of the transmission assembly 11 is provided with an adjusting assembly 12, the inner wall of the shell 4 is provided with two groups of second springs 13 for pushing the connecting block 2 to be separated from the limiting.

[0023] The filling assembly 7 comprises two groups of glass wools 71 symmetrically arranged on both sides of the thick soundproof sheet 5, and an air layer 72 is arranged between the two groups of glass wools 71. By arranging the filling assembly 7, the glass wools 71 are filled on both sides of the thick soundproof sheet 5, and the air layer 72 is left in the middle. This filling mode has little effect on the sound reduction performance of the whole thick composite soundproof device, reduces the use of materials, and lowers the production cost of the soundproof device. The outer sides of the thick soundproof sheet 5 and the thin soundproof sheet 6 are made of perforated plate materials, and the inside of the thin soundproof sheet 6 is completely filled with glass wools 71.

[0024] The positioning assembly 8 comprises a positioning block 81 fixed to the outer side of the connecting block 2. By arranging the positioning assembly 8, when the connecting block 2 is connected to the shell 4, the positioning block 81 is inserted after being aligned with the positioning groove 82, the preliminary connection is realized, and the stability of the connection is improved. The outer side of the shell 4 is provided with the positioning groove 82, and the outer side of the positioning block 81 is in sliding connection with the inner side of the positioning groove 82. The fixing assembly 10 comprises a limiting block 101 rotating on the outer side of the rotating shaft 9. By arranging the limiting block 101, when the connecting block 2 slides into the inner side of the shell 4, it will slide along the arc at one end of the limiting block 101, and then enter the inside of the limiting groove 102, so as to realize limiting. When the slide button 122 is pressed, the limiting block 101 will be rotated along the rotating shaft 9 through the transmission block 111, so that one end of the limiting block 101 is separated from the inside of the limiting groove 102. At the same time, the second spring 13 pushes the connecting block 2 out of the inside of the shell 4 through the elastic force, so as to realize separation. The outer side of the connecting block 2 is provided with the limiting groove 102. By arranging the limiting groove 102, when the limiting block 101 enters the inside of the limiting groove 102, the limiting block 101 can be limited. The transmission assembly 11 comprises a transmission block 111 fixed to the outer side of the limiting block 101. By arranging the transmission block 111, the limiting block 101 can be rotated when the slide button 122 is pressed. One side of the transmission block 111 is provided with the first spring 112. By arranging the first spring 112, the transmission block 111 can be reset through the elastic force after moving. The adjusting assembly 12 comprises a slide rail 121 fixed to the inner side of the shell 4. By arranging the slide rail 121, the movement path of the slide button 122 can be guided. The outer side of the slide rail 121 is in sliding connection with the slide button 122, and one side of the slide button 122 is in movable connection with one side of the transmission block 111. By arranging the slide button 122, when the slide button 122 is pressed, the transmission block 111 will be pushed to rotate the limiting block 101 along the rotating shaft 9, so that one end of the limiting block 101 is separated from the inside of the limiting groove 102.

[0025] Working principle: in use, the device improves the low frequency noise reduction performance by using thick sound absorbing sheet 5, and reduces the net distance of thick sound absorbing sheet 5 by interleaving thick sound absorbing sheet 5 and thin sound absorbing sheet 6, thereby improving the noise reduction amount of high frequency, thereby combining into a wide frequency band silencer, due to the arrangement of thin sound absorbing sheet 6, the performance of the silencer in the full frequency band range is obviously improved, especially in the middle and high frequency, the thin sound absorbing sheet 6 not only greatly improves the middle and high frequency noise reduction amount, but also has a great improvement in the low frequency noise reduction amount, therefore, the interleaving arrangement of the two kinds of sound absorbing sheets is helpful to improve the full frequency band noise reduction amount of the silencer, and when it is necessary to disassemble the frame 1, first press the slide button 122, push the transmission block 111 to move while driving the limiting block 101 to rotate along the rotating shaft 9, so that one end of the limiting block 101 is separated from the inside of the limiting slot 102, and the second spring 13 pushes the connecting block 2 out of the inside of the shell 4 through the rebound force, the positioning block 81 follows the connecting block 2 and slides out of the inside of the positioning slot 82, the connecting block 2 loses the limiting, and the disassembly of the frame 1 is completed.

[0026] It should be noted that in this document, the terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0027] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A thick piece composite muffler with a wind head, comprising a frame (1), the outer side of the frame (1) is fixedly connected with a connecting block (2), one side of the frame (1) is provided with an industrial equipment (3), the outer side of the industrial equipment (3) is fixedly connected with an outer shell (4), characterized in that, Also include: Thick sound-absorbing sheet (5) and thin sound-absorbing sheet (6) are staggered in the inside of frame (1), the inside of thick sound-absorbing sheet (5) is provided with filling assembly (7), and the outside of thick sound-absorbing sheet (5) and thin sound-absorbing sheet (6) is provided with wind head body (14); Positioning assembly (8) is arranged on the outside of connecting block (2) and shell (4), the inside of shell (4) is provided with rotating shaft (9), the outside of rotating shaft (9) is provided with fixed assembly (10) for limiting connecting block (2), the outside of fixed assembly (10) is provided with transmission assembly (11), the outside of transmission assembly (11) is provided with adjusting assembly (12), and the inner wall of shell (4) is provided with two groups of second springs (13) for pushing connecting block (2) to be separated from the limiting.

2. A thick plate composite muffler with a wind head according to claim 1, characterized in that: The filling assembly (7) includes two groups of glass silk (71) symmetrically arranged inside the thick sound-absorbing sheet (5), and an air layer (72) is arranged between the two groups of glass silk (71).

3. A thick plate composite muffler with a wind head according to claim 1, characterized in that: The outside of the thick sound-absorbing sheet (5) and the thin sound-absorbing sheet (6) is made of perforated plate material, and the inside of the thin sound-absorbing sheet (6) is completely filled with glass silk (71).

4. A thick plate composite muffler with a wind head according to claim 1, characterized in that: The positioning assembly (8) includes a positioning block (81) fixed to the outside of the connecting block (2), and the outside of the shell (4) is provided with a positioning groove (82), and the outside of the positioning block (81) is slidably connected with the inside of the positioning groove (82).

5. A thick plate composite muffler with a wind head according to claim 1, characterized in that: The fixed assembly (10) includes a limiting block (101) rotating on the outside of the rotating shaft (9), and the outside of the connecting block (2) is provided with a limiting groove (102).

6. A thick plate composite muffler with a wind head according to claim 1, characterized in that: The transmission assembly (11) includes a transmission block (111) fixed to the outside of the limiting block (101), and one side of the transmission block (111) is provided with a first spring (112).

7. A thick plate composite muffler with a wind head according to claim 6, characterized in that: The adjusting assembly (12) includes a sliding rail (121) fixed to the inside of the shell (4), and the outside of the sliding rail (121) is slidably connected with a sliding knob (122), and one side of the sliding knob (122) is movably connected with one side of the transmission block (111).

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