An assembled compressor muffler
By using a detachable muffler cylinder and a limiting compression locking structure in the modular compressor muffler, the maintenance difficulties caused by the blockage of the muffler hole are solved, enabling convenient cleaning and maintenance, reducing costs and downtime, while improving the muffler effect and compressor performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIZHOU XINMEIDUN MASCH MFG CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-14
AI Technical Summary
Existing compressor silencers are prone to clogging of their silencer holes by impurities, resulting in difficult maintenance, high costs, and long downtime. Furthermore, most of them are integrated structures that are not easy to disassemble and clean.
A modular compressor muffler was designed, which adopts a detachable muffler cylinder structure and a multi-limit and compression locking structure. The muffler cylinder and end cap can be quickly disassembled and fixed through the connecting mechanism, ensuring the stability and noise reduction effect of the muffler.
It facilitates the disassembly and cleaning of the noise reduction components, reduces maintenance costs, minimizes downtime, and enhances the durability of the noise reduction effect and the overall performance of the compressor.
Smart Images
Figure CN224496677U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of silencer technology, and in particular to an assembled compressor silencer. Background Technology
[0002] During compressor operation, the muffler, as a key component for reducing airflow noise, directly affects the overall performance of the compressor due to its noise reduction effect and service life. Currently, compressor mufflers typically achieve noise reduction by setting multiple silencing holes, which are mostly millimeter-sized or smaller in diameter, utilizing acoustic principles to attenuate airflow noise. However, in practical applications, the air (or other working medium) drawn into the compressor often contains various impurities, which can easily lead to blockage of the silencing holes, severely affecting the normal operation of the muffler. Most existing mufflers adopt an integrated structure, which is inconvenient for disassembly and cleaning. Once blockage occurs, the entire muffler needs to be replaced or undergo complex disassembly and repair, increasing maintenance costs and downtime. In view of this, this utility model proposes a modular compressor muffler. Utility Model Content
[0003] The purpose of this invention is to address the problems in the prior art where existing compressor silencers are prone to clogging by impurities and are mostly integrated structures that are inconvenient to disassemble and clean, resulting in high maintenance costs and long downtime. This invention proposes a modular compressor silencer.
[0004] The technical solution of this utility model is as follows: a modular compressor silencer, including a silencer cylinder; a connecting mechanism located at both ends of the silencer cylinder, the connecting mechanism being used to connect the silencer cylinder to a medium conveying pipeline; and two sets of fastening components disposed on the connecting mechanism, the two sets of fastening components being located at both ends of the silencer cylinder for fixing it.
[0005] Optionally, the silencer includes an inner cylinder, and a sound-absorbing layer, a support layer and an outer cylinder are sequentially sleeved on the outer side of the inner cylinder. The inner cylinder has multiple sets of first through holes, and the outer cylinder has multiple sets of second through holes.
[0006] Optionally, the connecting mechanism includes two sets of symmetrically arranged end caps, which are respectively fitted onto both ends of the muffler, and connecting pipes are installed on the side of the two sets of end caps that are far apart from each other.
[0007] Optionally, multiple sets of connecting blocks are fixedly connected to the outer rings of both sets of end caps, and bolts are threaded through the multiple sets of connecting blocks, with nuts threaded onto the bolts.
[0008] Optionally, the fastening assembly includes a fixed ring fixedly connected to the outer ring of the connecting pipe, a movable ring threadedly connected to the outer side of the fixed ring, a rotating sleeve fixedly connected to the side of the movable ring away from the end cap, an annular groove opened on the outer ring of the movable ring, a synchronizing ring rotatably connected in the annular groove, and multiple sets of limiting rods fixedly connected to the side of the synchronizing ring near the end cap, all of the multiple sets of limiting rods passing through the end cap and slidingly engaging with it, and a rubber sleeve provided at the sliding position.
[0009] Optionally, the ends of the multiple sets of limiting rods away from the synchronization ring are fixedly connected to a compression ring. The compression ring has a right-angled trapezoidal cross-section. Multiple sets of moving blocks are provided on the side of the compression ring near the muffler. The moving blocks have a right-angled triangular cross-section. The inclined surface of the compression ring is in contact with the inclined surface of the moving blocks. A support block is fixedly connected on the side of the moving blocks near the muffler.
[0010] Optionally, the movable block is fixedly connected to multiple sets of sliding rods on the side away from the compression ring, and fixed blocks are slidably connected to the multiple sets of sliding rods. The multiple sets of fixed blocks are fixedly connected to a positioning ring on the side near the muffler, and the positioning ring is fixedly connected to the inner wall of the end cover.
[0011] Optionally, a spring is fitted onto the slide rod, the spring being positioned between the moving block and the fixed block, and a limit plate is fixedly connected to the end of the slide rod furthest from the moving block.
[0012] In summary, this application includes at least one of the following beneficial technical effects:
[0013] This utility model, through the detachable connection between the end cap and the muffler and the independent module setting, facilitates the disassembly, cleaning and replacement of the muffler components, effectively solving the problem of difficult maintenance due to blockage in traditional integrated mufflers, and reducing maintenance costs and downtime.
[0014] Furthermore, the multiple limiting and compression locking structure of the fastening components can eliminate the gap between the muffler and the end cap, reduce vibration during operation and the resulting additional noise, and at the same time improve the overall stability of the muffler structure, ensuring the durability of the muffler effect.
[0015] In summary, this utility model can conveniently solve the problem of blocked silencer holes, reduce maintenance costs, reduce downtime, and ensure the silencing effect and overall compressor performance. Attached Figure Description
[0016] Figure 1 A structural schematic diagram of an assembled compressor silencer is provided;
[0017] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure;
[0018] Figure 3 yesFigure 2 Enlarged diagram of point A in the middle.
[0019] Figure label:
[0020] 1. Silencer; 11. Inner cylinder; 12. Sound-absorbing layer; 13. Support layer; 14. Outer cylinder; 111. First through hole; 141. Second through hole;
[0021] 2. Connecting mechanism; 21. End cap; 22. Connecting pipe; 23. Connecting block; 24. Bolt; 25. Nut;
[0022] 3. Fastening assembly; 31. Fixed ring; 32. Moving ring; 33. Rotating sleeve; 34. Annular groove; 35. Synchronizing ring; 36. Limiting rod; 37. Compression ring; 38. Moving block; 39. Support block; 310. Slide rod; 311. Fixed block; 312. Positioning ring; 313. Spring; 314. Limiting plate. Detailed Implementation
[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0024] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.
[0025] 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.
[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] Example
[0029] like Figure 1 and Figure 2 As shown, this utility model proposes a modular compressor silencer, including a silencer cylinder 1. The silencer cylinder 1 includes an inner cylinder 11, and a sound-absorbing layer 12, a support layer 13, and an outer cylinder 14 are sequentially sleeved on the outer side of the inner cylinder 11. The sound-absorbing layer 12 is made of porous fiber materials such as glass wool, rock wool, slag wool, and ceramic wool. These materials have a large number of tiny interconnected pores, providing channels for sound waves to enter and energy to dissipate. The inner cylinder 11 has multiple sets of first through holes 111, and the outer cylinder 14 has multiple sets of second through holes 141. The sound absorption is achieved through the opening of the first through holes 111 and the second through holes 141, in conjunction with the function of the sound-absorbing layer 12. This is existing technology and will not be described in detail here.
[0030] Furthermore, the aforementioned silencer also includes connecting mechanisms 2 located at both ends of the silencer cylinder 1. These connecting mechanisms 2 connect the silencer cylinder 1 to the media conveying pipeline. The connecting mechanism 2 includes two symmetrically arranged end caps 21, which are respectively fitted onto both ends of the silencer cylinder 1, facilitating connection to the media conveying pipeline. Connecting pipes 22 are installed on the opposite side of each set of end caps 21. Multiple connecting blocks 23 are fixedly connected to the outer ring of each set of end caps 21. Bolts 24 pass through each of the connecting blocks 23, and nuts 25 are threaded onto the bolts 24. After the nuts 25 are tightened, the two sets of end caps 21 are clamped at both ends of the silencer cylinder 1.
[0031] For details, please refer to Figure 3The aforementioned muffler includes two sets of fastening components 3 mounted on the connecting mechanism 2. These components are located at both ends of the muffler cylinder 1 to secure it and prevent vibrations caused by the gap between the muffler cylinder 1 and the end cap 21 during operation, thus preventing additional noise. Each fastening component 3 includes a fixed ring 31 fixedly connected to the outer ring of the connecting pipe 22. The fixed ring 31 is in a fixed position. A movable ring 32 is threaded onto the outer side of the fixed ring 31, allowing the movable ring 32 to move closer to or further away from the end cap 21 during rotation. A rotating sleeve 33 is fixedly connected to the side of the movable ring 32 away from the end cap 21, facilitating the rotation of the movable ring 32. An annular groove 34 is formed on the outer ring of the movable ring 32, and a synchronizing ring 35 is rotatably connected within the annular groove 34. When the annular groove 34 moves, it drives the synchronizing ring 35 to move synchronously; conversely, when the movable ring 32 rotates, it may not drive the synchronizing ring 35 to rotate. Multiple sets of limiting rods 36 are fixedly connected to the side of the synchronizing ring 35 near the end cap 21. These limiting rods 36 penetrate the end cap 21 and slide against it, with rubber sleeves at their sliding positions. The limiting rods 36 prevent the synchronizing ring 35 from rotating when the moving ring 32 rotates, while ensuring smooth movement of the synchronizing ring 35. A compression ring 37 is fixedly connected to the end of each limiting rod 36 away from the synchronizing ring 35. When the synchronizing ring 35 moves, it drives the compression ring 37 to move synchronously via the limiting rods 36. The compression ring 37 has a right-angled trapezoidal cross-section. Multiple sets of moving blocks 38 are provided on the side of the compression ring 37 near the muffler 1. Each moving block 38 has a right-angled triangular cross-section. The inclined surface of the compression ring 37 contacts the inclined surface of the moving blocks 38. When the compression ring 37 approaches the muffler 1, it compresses the moving blocks 38, causing them to move. A support block 39 is fixedly connected to the side of the movable block 38 near the muffler 1. When the movable block 38 moves, it drives the support block 39 to move synchronously. Multiple sets of support blocks 39 lock the inner cylinder 11 inside the inner cylinder 11 to prevent it from shaking. Multiple sets of slide rods 310 are fixedly connected to the side of the movable block 38 away from the compression ring 37. Fixed blocks 311 are slidably connected to the multiple sets of slide rods 310. A positioning ring 312 is fixedly connected to the side of the multiple sets of fixed blocks 311 near the muffler 1. The positioning ring 312 is fixedly connected to the inner wall of the end cover 21. The positions of the fixed blocks 311 and the positioning ring 312 are fixed. With the limiting effect of the slide rods 310, the movement of the movable block 38 is stable. A spring 313 is fitted onto the slide rod 310, positioned between the moving block 38 and the fixed block 311. The spring 313's elastic force causes the moving block 38 to move away from the fixed block 311, thus initially distancing the support block 39 from the inner cylinder 11, facilitating the installation of the end cap 21 at the end of the muffler 1. A limit plate 314 is fixedly connected to the end of the slide rod 310 away from the moving block 38 to prevent the slide rod 310 from detaching from the fixed block 311 under the elastic force of the spring 313.
[0032] In this embodiment, firstly, due to the elastic force of the spring 313, the moving block 38 moves away from the fixed block 311, and the support block 39 retracts into the inner wall of the inner cylinder 11. At this time, the end caps 21 can be easily fitted onto both ends of the muffler 1. The two end caps 21 are installed onto both ends of the muffler 1 via the end caps 21, connecting block 23, and bolts 24 of the connecting mechanism 2. Simultaneously, the muffler 1 can be quickly disassembled into the inner cylinder 11, sound-absorbing layer 12, support layer 13, and outer cylinder 14. When the silencing holes are blocked by impurities, the corresponding components can be directly disassembled for cleaning or replacement, avoiding complete replacement and reducing maintenance costs.
[0033] Then, rotating the rotating sleeve 33 drives the moving ring 32 to move along the thread of the fixed ring 31 toward the end cover 21. The synchronizing ring 35 drives the pressing ring 37 to approach the muffler 1 through the limiting rod 36. The inclined surface of the pressing ring 37 pushes the moving block 38 to overcome the elastic force of the spring 313, causing the support block 39 to move radially outward until it is pressed tightly against the inner wall of the inner cylinder 11, thus achieving a gapless locking between the muffler 1 and the end cover 21.
[0034] During operation, when the high-speed airflow generated by the compressor carries noise into the inner cylinder 11, the sound waves enter the sound-absorbing layer 12 through the first through-hole 111. The sound-absorbing layer 12, made of porous fiber materials such as glass wool and rock wool, has a large number of tiny interconnected pores. The sound waves are reflected and rubbed multiple times in the pores, converting sound energy into heat energy for dissipation, thus achieving the first stage of noise reduction. The sound waves attenuated by the sound-absorbing layer 12 continue to pass through the support layer 13 and are finally discharged through the second through-hole 141 of the outer cylinder 14. The staggered arrangement of the first through-hole 111 and the second through-hole 141 forms a resonant cavity structure, which resonates and absorbs noise of specific frequencies, further reducing noise energy and achieving a multi-stage noise reduction effect.
[0035] The above specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. A modular compressor silencer, characterized in that, include: Silencer (1); The connecting mechanism (2) is located at both ends of the silencer (1). The connecting mechanism (2) is used to connect the silencer (1) and the medium conveying pipeline. The connecting mechanism (2) includes two sets of symmetrically arranged end caps (21). The two sets of end caps (21) are respectively sleeved on both ends of the silencer (1). A connecting pipe (22) is installed on the side of the two sets of end caps (21) that are far apart from each other. Two sets of fastening components (3) are set on the connecting mechanism (2). The two sets of fastening components (3) are located at both ends of the muffler (1) for fixing it. The fastening components (3) include a fixed ring (31) fixedly connected to the outer ring of the connecting pipe (22). A movable ring (32) is threadedly connected to the outer side of the fixed ring (31). A rotating sleeve (33) is fixedly connected to the side of the movable ring (32) away from the end cover (21). An annular groove (34) is opened on the outer ring of the movable ring (32). A synchronous ring (35) is rotatably connected in the annular groove (34). Multiple sets of limiting rods (36) are fixedly connected to the side of the synchronous ring (35) near the end cover (21). The multiple sets of limiting rods (36) all penetrate the end cover (21) and slide with it, and a rubber sleeve is provided at the sliding position.
2. The assembled compressor silencer according to claim 1, characterized in that, The silencer (1) includes an inner cylinder (11), and a sound-absorbing layer (12), a support layer (13) and an outer cylinder (14) are sequentially sleeved on the outside of the inner cylinder (11). The inner cylinder (11) has multiple sets of first through holes (111), and the outer cylinder (14) has multiple sets of second through holes (141).
3. The assembled compressor silencer according to claim 2, characterized in that, Both sets of end caps (21) are fixedly connected to multiple sets of connecting blocks (23) on their outer rings. Bolts (24) are threaded through the multiple sets of connecting blocks (23), and nuts (25) are threaded onto the bolts (24).
4. The assembled compressor silencer according to claim 3, characterized in that, Multiple sets of limiting rods (36) are fixedly connected to a compression ring (37) at the end away from the synchronization ring (35). The compression ring (37) has a right trapezoidal cross section. Multiple sets of moving blocks (38) are provided on the side of the compression ring (37) near the muffler (1). The moving block (38) has a right triangle cross section. The inclined surface of the compression ring (37) is in contact with the inclined surface of the moving block (38). A support block (39) is fixedly connected on the side of the moving block (38) near the muffler (1).
5. A modular compressor silencer according to claim 4, characterized in that, The movable block (38) is fixedly connected to a plurality of sliding rods (310) on the side away from the compression ring (37). Fixed blocks (311) are slidably connected to the plurality of sliding rods (310). The fixed blocks (311) are fixedly connected to a positioning ring (312) on the side near the muffler (1). The positioning ring (312) is fixedly connected to the inner wall of the end cap (21).
6. A modular compressor silencer according to claim 5, characterized in that, A spring (313) is fitted on the slide rod (310). The spring (313) is located between the moving block (38) and the fixed block (311). A limit plate (314) is fixedly connected to the end of the slide rod (310) away from the moving block (38).