Impedance compound muffler

Abstract

The utility model relates to the technical field of muffler discloses an impedance composite muffler, including the muffler shell, the inside one side of muffler shell is vertically even interval and is provided with a plurality of movable mounting frame that can slide horizontally, the both ends of the other side of muffler shell outside symmetry is provided with two card plate components that can hold movable mounting frame, a plurality of frame limit boards are arranged at the upper and lower ends of the both sides of movable mounting frame respectively, a plurality of glass fibre boards are arranged at the top of movable mounting frame inboard respectively, two plate fixed blocks are arranged at the bottom of two card plate components respectively, two fixed nuts are symmetrically arranged at the both ends of card plate component bottom and pass through plate fixed block, the utility model discloses can quickly loosen a plurality of movable mounting frames through removing four fixed nuts, then taking out a plurality of movable mounting frames, can quickly replace and maintain glass fibre board, improve maintenance efficiency, reduce maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of silencer technology, specifically an impedance composite silencer. Background Technology

[0002] Impedance composite silencers are noise reduction devices that organically combine resistive and reactive silencing principles through specific structural design. They achieve effective attenuation of broadband noise by absorbing mid-to-high frequency sound energy with resistive materials and reflecting and interfering with low-to-mid frequency sound waves with reactive structures. They combine the absorption advantages of resistive silencers for mid-to-high frequency noise with the interference suppression capabilities of reactive silencers for low-frequency noise. They are widely used in industrial equipment, building ventilation systems, automotive exhaust, aerospace and other fields to solve noise control problems in complex frequency bands.

[0003] To eliminate noise, existing impedance composite silencers typically place porous sound-absorbing materials such as fiberglass inside a metal casing. However, these sound-absorbing materials are susceptible to high temperatures, oil stains, or humid environments and require regular replacement. Since the sound-absorbing material is located inside the metal casing, a large number of screws need to be removed during replacement, resulting in high maintenance costs. To facilitate the replacement of the sound-absorbing material, improve maintenance efficiency, and reduce maintenance costs, this application proposes an impedance composite silencer. Utility Model Content

[0004] The purpose of this invention is to provide an impedance composite silencer to solve the problem that existing impedance composite silencers usually place porous sound-absorbing materials such as glass fiber inside a metal shell to absorb noise in order to eliminate noise. However, such sound-absorbing materials are easily affected by high temperature, oil or humid environments and need to be replaced regularly. Since the sound-absorbing material is located inside the metal shell, a large number of screws need to be removed when replacing it, resulting in high maintenance costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an impedance composite silencer, comprising a silencer housing, wherein a plurality of horizontally sliding movable mounting frames are vertically and evenly spaced on one side of the silencer housing, and two locking plate components that can lock the movable mounting frames are symmetrically arranged at both ends of the other side of the silencer housing, wherein a plurality of frame limiting plates are respectively arranged at the upper and lower ends of the sides of the plurality of movable mounting frames, and a plurality of glass fiber plates are respectively arranged at the top of the inner side of the movable mounting frames, and two plate fixing blocks are respectively arranged at the bottom of the two locking plate components, and two fixing nuts are symmetrically arranged through the plate fixing blocks at both ends of the bottom of the locking plate components.

[0006] The muffler housing includes a shell, a connecting pipe fixedly connected to the top of the shell, multiple shell holes vertically and evenly spaced at both ends on one side of the shell, and a discharge pipe fixedly connected to the bottom of the shell.

[0007] The frame limiting plates are fixedly connected to the inner side of the housing, and the frame limiting plates are located at the upper and lower ends of the multiple housing holes at both ends.

[0008] The movable mounting frame includes a frame body, two locking pins are symmetrically fixedly connected to the two sides of the frame body near the shell hole, a baffle is fixedly connected to the other end of the frame body, a plate mounting groove is provided on the top of the frame body, the two sides of the frame body are horizontally slidably connected to the shell, the upper and lower ends of the frame body are horizontally slidably connected to multiple frame limiting plates respectively, the two locking pins are horizontally slidably connected to two shell holes respectively, and a disassembly handle is fixedly connected to the other side of the baffle.

[0009] The fiberglass boards are vertically and slidably connected to the frame through multiple board mounting slots, and the upper surface of the fiberglass boards is horizontally and slidably connected to two frame limiting plates.

[0010] One side of the plate fixing block is fixedly connected to the shell.

[0011] The card plate component includes a card plate with a U-shaped slot at one end. Two screws are symmetrically fixed to both sides of the card plate near the opening of the U-shaped slot. The card plate is movably engaged with multiple locking pins on the same side of multiple frames through the U-shaped slot. The two screws pass through both ends of the plate fixing block.

[0012] The two fixing nuts are respectively threaded to the two screws, and the top of the fixing nut is in contact with the bottom of the plate fixing block.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention allows for the removal of four fixing nuts, which in turn loosens the four screws at both ends of the bottom of the two clamping plates. By then pulling out the two clamping plates, multiple locking pins on both sides of one end of the frame can be quickly released. The frame can then be quickly pulled out using the disassembly handle. The frame slides through the plate mounting groove on the frame and connects with the fiberglass board, enabling rapid replacement and maintenance of the fiberglass board, thus improving maintenance efficiency and reducing maintenance costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the rear mounting structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the muffler housing structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the movable mounting frame structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the card plate component structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the fixing nut installation structure of this utility model;

[0021] In the diagram: 1. Muffler housing; 101. Housing; 102. Connecting pipe; 103. Housing hole; 104. Discharge pipe; 2. Movable mounting frame; 201. Frame body; 202. Locking pin; 203. Baffle; 204. Plate mounting groove; 205. Disassembly handle; 3. Plate clamping component; 301. Plate clamping; 302. U-shaped groove; 303. Screw; 4. Frame limiting plate; 5. Fiberglass board; 6. Plate fixing block; 7. Fixing nut. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-6 This utility model provides a technical solution: an impedance composite silencer, including a silencer housing 1, with multiple horizontally sliding movable mounting frames 2 vertically and evenly spaced on one side of the silencer housing 1, and two clamping plate components 3 symmetrically arranged at both ends of the other side of the silencer housing 1 to lock the movable mounting frames 2, with multiple frame limiting plates 4 respectively arranged at the upper and lower ends of the multiple movable mounting frames 2, and multiple fiberglass boards 5 respectively arranged at the top of the inner side of the movable mounting frames 2, with two plate fixing blocks 6 respectively arranged at the bottom of the two clamping plate components 3, and two fixing nuts 7 symmetrically arranged through the plate fixing blocks 6 at both ends of the bottom of the clamping plate components 3.

[0024] The muffler housing 1 includes a housing 101, with a connecting pipe 102 fixedly connected to the top of the housing 101. Multiple housing holes 103 are vertically and evenly spaced at both ends on one side of the housing 101, and a discharge pipe 104 is fixedly connected to the bottom of the housing 101. By providing multiple housing holes 103, the locking pin 202 can pass through the housing 101, which facilitates the locking plate component 3 to engage and thus fix the frame 201.

[0025] Multiple frame limiting plates 4 are fixedly connected to the inner side of the housing 101, and the frame limiting plates 4 are located at the upper and lower ends of multiple housing holes 103 at both ends. By setting multiple frame limiting plates 4, the frame 201 can slide stably, which is convenient for disassembly and assembly, and can press the glass fiber board 5 inside the plate mounting groove 204 to ensure its stability when absorbing noise.

[0026] The movable mounting frame 2 includes a frame body 201. Two locking pins 202 are symmetrically fixedly connected to both sides of the frame body 201 near the shell hole 103. A baffle 203 is fixedly connected to the other end of the frame body 201. A plate mounting groove 204 is provided on the top of the frame body 201. The two sides of the frame body 201 are horizontally slidably connected to the shell 101. The upper and lower ends of the frame body 201 are horizontally slidably connected to multiple frame limiting plates 4 respectively. The two locking pins 202 are horizontally slidably connected to two shell holes 103 respectively. A disassembly handle 205 is fixedly connected to the other side of the baffle 203. By setting the baffle 203, it can cooperate with the two locking plate components 3 to fix the two ends of the frame body 201, thereby fixing the glass fiber board 5 inside the frame body 201.

[0027] Multiple fiberglass boards 5 are vertically and slidably connected to the frame 201 through multiple board mounting grooves 204. The upper surface of the fiberglass board 5 is horizontally and slidably connected to two frame limiting plates 4. By setting the fiberglass board 5, noise transmitted into the housing 101 can be absorbed.

[0028] The plate fixing block 6 is fixedly connected to the housing 101 on one side. By setting the plate fixing block 6, the clamping plate component 3 can be fixed with two fixing nuts 7, thereby fixing the movable mounting frame 2 and realizing the quick assembly and disassembly of the fiberglass board 5.

[0029] The clamping plate component 3 includes a clamping plate 301. One end of the clamping plate 301 is provided with a U-shaped groove 302. Two screws 303 are symmetrically fixedly connected to both sides of the clamping plate 301 near the opening of the U-shaped groove 302. The clamping plate 301 is movably engaged with multiple locking pins 202 on the same side of multiple frames 201 through the U-shaped groove 302. The two screws 303 pass through both ends of the plate fixing block 6. By setting the U-shaped groove 302, multiple locking pins 202 on the same side of multiple frames 201 can be locked at the same time, which facilitates the quick disassembly of multiple movable mounting frames 2 and thus the disassembly of the fiberglass board 5.

[0030] Among them, the two fixing nuts 7 are threadedly connected to the two screws 303 respectively, and the top of the fixing nut 7 is attached to the bottom of the plate fixing block 6.

[0031] Working principle: Noise is introduced through the connecting pipe 102 and absorbed as it passes through multiple fiberglass panels 5. When it is necessary to replace or maintain the fiberglass panels 5, the four fixing nuts 7 on the four screws 303 at the bottom of the two clamping plates 301 are loosened, and then the two plate fixing blocks 6 are pulled out of the two clamping plates 301. This loosens the multiple locking pins 202, and the multiple frames 201 are pulled out one by one through the disassembly handle 205. The fiberglass panel 5 that needs to be replaced is taken out, and the new fiberglass panel 5 is aligned with the plate mounting groove 204 on the frame 201 and inserted. Insert the frame 201 into the housing 101 between the multiple frame limiting plates 4 on both sides, so that the two locking pins 202 on both sides of one end of the frame 201 pass through the housing 101 through the housing hole 103. During this process, the frame limiting plate 4 presses the glass fiber board 5 inside the frame 201. Then, install multiple glass fiber boards 5 in sequence according to the above method. Finally, insert the locking plate 301 into the plate fixing block 6 through the U-shaped locking groove 302, align it with the multiple locking pins 202 on the same side of the multiple frames 201, and then tighten the fixing nut 7 to complete the replacement and maintenance.

[0032] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. An impedance composite silencer, comprising a silencer housing (1), characterized in that: The muffler housing (1) has a plurality of horizontally sliding movable mounting frames (2) vertically and evenly spaced on one side. The muffler housing (1) has two clamping plate components (3) symmetrically arranged at both ends on the other side to hold the movable mounting frames (2). The movable mounting frames (2) have a plurality of frame limiting plates (4) at the upper and lower ends on both sides. The movable mounting frames (2) have a plurality of glass fiber boards (5) at the top of the inner side. The clamping plate components (3) have two plate fixing blocks (6) at the bottom. The clamping plate components (3) have two fixing nuts (7) symmetrically arranged at both ends of the bottom through the plate fixing blocks (6).

2. The impedance composite silencer according to claim 1, characterized in that: The muffler housing (1) includes a housing (101), a connecting pipe (102) is fixedly connected to the top of the housing (101), a plurality of shell holes (103) are vertically and evenly spaced at both ends on one side of the housing (101), and a discharge pipe (104) is fixedly connected to the bottom of the housing (101).

3. The impedance composite silencer according to claim 2, characterized in that: The multiple frame limiting plates (4) are fixedly connected to the inner side of the housing (101), and the frame limiting plates (4) are located at the upper and lower ends of the multiple shell holes (103) at both ends.

4. The impedance composite silencer according to claim 3, characterized in that: The movable mounting frame (2) includes a frame body (201). Two locking pins (202) are symmetrically fixedly connected to the two sides of the frame body (201) near the shell hole (103). A baffle (203) is fixedly connected to the other end of the frame body (201). A plate mounting groove (204) is provided on the top of the frame body (201). The two sides of the frame body (201) are horizontally slidably connected to the shell (101). The upper and lower ends of the frame body (201) are horizontally slidably connected to multiple frame limiting plates (4). The two locking pins (202) are horizontally slidably connected to the two shell holes (103). A disassembly handle (205) is fixedly connected to the other side of the baffle (203).

5. The impedance composite silencer according to claim 4, characterized in that: Multiple fiberglass boards (5) are vertically slidably connected to the frame (201) through multiple board mounting grooves (204), and the upper surface of the fiberglass board (5) is horizontally slidably connected to two frame limiting plates (4).

6. The impedance composite silencer according to claim 3, characterized in that: The plate fixing block (6) is fixedly connected to the shell (101) on one side.

7. The impedance composite silencer according to claim 6, characterized in that: The card plate component (3) includes a card plate (301). One end of the card plate (301) is provided with a U-shaped card groove (302). Two screws (303) are symmetrically fixedly connected on both sides of the card plate (301) near the opening of the U-shaped card groove (302). The card plate (301) is movably engaged with multiple locking pins (202) on the same side of multiple frames (201) through the U-shaped card groove (302). The two screws (303) pass through both ends of the plate fixing block (6).

8. The impedance composite silencer according to claim 7, characterized in that: The two fixing nuts (7) are threadedly connected to the two screws (303) respectively, and the top of the fixing nut (7) is attached to the bottom of the plate fixing block (6).

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