A muffler for air conditioner noise reduction
The snap-fit installation structure solves the problem of the air conditioner muffler being difficult to inspect or replace individually, enabling convenient disassembly and installation of the muffler, reducing economic losses and ensuring connection stability.
Patent Information
- Application Number
- CN202521139792.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-05
- Publication Date
- 2026-07-24
- Estimated Expiration
- 2035-06-05
AI Technical Summary
The current installation method for air conditioner mufflers mainly relies on welding, which makes it difficult to repair or replace the muffler individually when it is damaged, resulting in time and economic losses. At the same time, the connection is not stable enough.
It adopts a snap-fit installation structure, utilizing a lifting mechanism, a pushing mechanism, and a snap-fit structure. By rotating the wheel, a firm connection is achieved between the muffler body and the mounting plate, simplifying the disassembly and installation process.
It enables convenient disassembly and installation of the muffler body, reduces maintenance time and labor costs, avoids waste of parts, and ensures the stability of the muffler during air conditioning operation.
Smart Images

Figure CN224551755U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of noise reduction muffler installation technology, and in particular to a muffler for reducing air conditioning noise. Background Technology
[0002] In modern society, air conditioners have become an indispensable electrical appliance in people's living and working environments. However, the noise generated by air conditioners during operation has always been a problem for users, affecting not only their rest and work efficiency, but also potentially posing health risks with prolonged exposure to high noise levels. To reduce the noise generated by air conditioners during operation, air conditioner silencers have been developed.
[0003] Currently, there are many types of air conditioner mufflers on the market, but most of them are installed and connected using traditional welding methods, directly welding the muffler body to the intake and exhaust pipes. While this connection method ensures stability, it also brings many problems. When the muffler is damaged, such as by aging or perforation of the internal sound-absorbing material, the welded fixing method makes it difficult for users to inspect or replace the muffler body separately. Usually, the muffler body, along with the intake and exhaust pipes, needs to be cut together. This process not only consumes a lot of time and manpower, but the cut parts are often unusable, resulting in unnecessary economic losses. Therefore, we propose a muffler for air conditioner noise reduction to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a silencer for reducing air conditioning noise.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A silencer for reducing air conditioning noise includes a mounting plate. The lower end of the mounting plate is connected to a connecting channel, and the upper end of the mounting plate is equipped with an air supply channel. A cover is hinged to one side of the air supply channel. An opening is provided in the middle of the mounting plate. Each of the four corners of the opening has a limiting groove and an L-shaped slot, and one limiting groove and one L-shaped slot on the same side are connected. A silencer body is inserted through the opening. A cross-shaped fixing frame is fixed to the upper end of the silencer body. A lifting mechanism is installed in the middle of the upper end of the cross-shaped fixing frame. Four pushing mechanisms are connected around the circumference of the lifting mechanism. One end of each pushing mechanism is connected to a moving rod, and one end of each moving rod is connected to a snap-fit structure. One snap-fit structure on the same side snaps into one limiting groove and one L-shaped slot on the same side.
[0006] Preferably, the lifting mechanism includes a stud rotatably connected to the middle of the upper end of the cross-shaped fixed frame, a wheel fixed to the upper end of the stud, and a moving block threaded onto the stud.
[0007] Preferably, the pushing mechanism includes four rotating rods rotatably connected to the moving block around one circumference. The upper end of the cross-shaped fixing frame is provided with four sliding grooves at equal intervals around one circumference. A slider is installed in the sliding groove. A rotating rod on the same side is rotatably connected to the upper end of a slider on the same side. One end of a moving rod on the same side passes through the side wall of the sliding groove and is fixed to one side of a slider.
[0008] Preferably, the snap-fit structure includes a top rod fixed to one side of the moving rod, one end of the top rod is fixed with an L-shaped clamping block, one top rod on the same side is snapped into a limiting groove on the same side, and one L-shaped clamping block on the same side is snapped into an L-shaped slot on the same side.
[0009] Preferably, fixing blocks are fixed on both sides of the lower end of the cross-shaped fixing frame, and a connecting arm is fixed on one side of the lower end of the fixing block. One end of a connecting arm on the same side is fixed to one side inside the muffler body.
[0010] In this utility model, when in use: 1. Preparation: Open the hinged cover on one side of the gas delivery channel to prepare for the installation of the silencer body; 2. Inserting the components: Insert the cross-shaped fixing bracket and the muffler body connected to it into the mounting plate through the opening in the middle of the mounting plate, so that the muffler body passes through the opening, and ensure that the four L-shaped clamping blocks are initially engaged in the four L-shaped slots. 3. Snap-fit operation: Rotate the rotating wheel, which drives the stud fixedly connected to it to rotate. Since the moving block is screwed onto the stud, the rotation of the stud will cause the moving block to descend along the stud. 4. Linkage and pushing: During the descent of the moving block, it drives the four rotating rods connected to it to move around one circumference. The rotation of the rotating rods will push the slider to slide in the groove. 5. Complete the snap-fit: The sliding of the slider drives the moving rod that is fixedly connected to it to move. The moving rod drives the top rod and the L-shaped clamping block to move in four directions. The top rod is snapped into the limiting groove, and the L-shaped clamping block is firmly abutted and snapped into the L-shaped slot, realizing a firm connection between the muffler body and the mounting plate.
[0011] This utility model has the following advantages: 1. Compared with the traditional welding method, the snap-fit installation method makes the disassembly and installation of the muffler body very convenient. When the muffler malfunctions, simply rotate the wheel in the opposite direction to disengage the top rod and L-shaped clamping block from the limiting groove and L-shaped slot, and the muffler body can be easily removed for inspection or replacement, which greatly saves inspection time and labor costs. 2. This avoids the waste of parts caused by cutting the muffler body together with the intake and exhaust pipes, reducing unnecessary economic losses; 3. By engaging the top rod in the limiting groove and the L-shaped clamping block in the L-shaped slot, a firm connection between the muffler body and the mounting plate can be achieved, ensuring the stability of the muffler during air conditioning operation and effectively reducing noise. 4. The entire installation and disassembly process can be completed simply by rotating the wheel, making the operation simple and easy to understand; In summary, this utility model allows for easy removal of the muffler body for inspection or replacement, greatly saving inspection time and labor costs, while reducing unnecessary economic losses. In addition, it enables a secure connection of the muffler body, ensuring the stability of the muffler during air conditioning operation. The operation is simple and easy to understand, enhancing practicality and convenience. Attached Figure Description
[0012] Figure 1 This is a structural diagram of the muffler body and the cross-shaped fixing bracket of this utility model. Figure 2 This is a diagram showing the snap-fit structure and the cross-shaped fixing bracket connection structure of this utility model; Figure 3 This is a diagram showing the external structure of the present invention. Figure 4 A structural diagram showing the opening configuration of this utility model; Figure 5 for Figure 2 Enlarged view of the structure at point A.
[0013] In the diagram: 1. Top rod, 2. Moving rod, 3. Rotary wheel, 4. L-shaped clamping block, 5. Cross-shaped fixing bracket, 6. Connecting arm, 7. Fixing block, 8. Silencer body, 9. Slide groove, 10. Sliding block, 11. Rotating rod, 12. Moving block, 13. Stud, 14. Air supply channel, 15. Cover, 16. Mounting plate, 17. Connecting channel, 18. L-shaped slot, 19. Limiting groove, 20. Opening. Detailed Implementation
[0014] 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.
[0015] Reference Figure 1-5A silencer for air conditioning noise reduction includes a mounting plate 16, a connecting channel 17 connected to the lower end of the mounting plate 16, and an air supply channel 14 installed at the upper end of the mounting plate 16. The mounting plate 16 is the basic support component of the silencer. The connecting channel 17 at its lower end is mainly used to connect with components such as the air duct of the air conditioner to ensure that the airflow can pass smoothly through the silencer. The air supply channel 14 is the inlet for the airflow to enter the silencer. The cover 15 is set to facilitate the opening and closing of the air supply channel 14, and to facilitate the maintenance and inspection of the internal condition of the silencer. A cover 15 is hinged to one side of the gas supply channel 14, and an opening 20 is provided in the middle of the mounting plate 16. The opening 20 facilitates the installation and disassembly of the muffler body 8. The limiting groove 19 and the L-shaped slot 18 are interconnected to achieve accurate snap-fit of the snap-fit structure and ensure the stability of the muffler body 8 during installation. Each of the four corners of the opening 20 is provided with a limiting groove 19 and an L-shaped slot 18, and a limiting groove 19 and an L-shaped slot 18 on the same side are connected. A muffler body 8 is inserted through the opening 20. A cross-shaped fixing frame 5 is fixed to the upper end of the muffler body 8. A lifting mechanism is installed in the middle of the upper end of the cross-shaped fixing frame 5. Four pushing mechanisms are connected around the lifting mechanism. A moving rod 2 is connected to one end of the pushing mechanism. A snap-fit structure is connected to one of the limiting grooves 19 and L-shaped slots 18 on the same side. The lifting mechanism includes a stud 13 rotatably connected to the middle of the upper end of the cross-shaped fixed frame 5. A rotating wheel 3 is fixed to the upper end of the stud 13. A movable block 12 is threaded onto the stud 13. The design of the rotating wheel 3 makes it convenient for the operator to rotate it by hand, which drives the stud 13 to rotate. Since the movable block 12 and the stud 13 are connected by threads, according to the principle of thread transmission, the rotation of the stud 13 will be converted into the linear motion of the movable block 12, thereby providing power for the subsequent snap-fit operation. The pushing mechanism includes four rotating rods 11 rotatably connected to the moving block 12. The upper end of the cross-shaped fixing frame 5 is provided with four equally spaced sliding grooves 9. A slider 10 is installed in the sliding groove 9. One rotating rod 11 on the same side is rotatably connected to the upper end of a slider 10 on the same side. One end of a moving rod 2 on the same side passes through the side wall of the sliding groove 9 and is fixed to one side of a slider 10. The rotating rod 11 plays the role of force transmission and direction conversion during the descent of the moving block 12. When the moving block 12 descends, the rotating rod 11 will rotate around the connection point with the moving block 12, thereby pushing the slider 10 to slide in the sliding groove 9. The function of the sliding groove 9 is to provide a stable sliding track for the slider 10, ensuring that the slider 10 can move accurately along the preset direction, thereby driving the moving rod 2 to move. The snap-fit structure includes a top rod 1 fixed to one side of the moving rod 2. One end of the top rod 1 is fixed with an L-shaped clamping block 4. One top rod 1 on the same side snaps into a limiting groove 19 on the same side, and one L-shaped clamping block 4 on the same side snaps into an L-shaped slot 18 on the same side. The snap-fit structure composed of the top rod 1 and the L-shaped clamping block 4 is the key to achieving a firm connection between the muffler body 8 and the mounting plate 16. The top rod 1 snaps into the limiting groove 19, which plays a role in initial positioning and limiting lateral movement, while the L-shaped clamping block 4 snaps into the L-shaped slot 18, which can provide a more stable connection and prevent the muffler body 8 from shaking or loosening during use. The lower ends of the cross-shaped fixing frame 5 are fixed with fixing blocks 7 on both sides. A connecting arm 6 is fixed to one side of the lower end of the fixing block 7. One end of the connecting arm 6 on the same side is fixed to one side inside the muffler body 8. The cross-shaped fixing frame 5 is connected to the muffler body 8 through the fixing blocks 7 and the connecting arm 6, which can ensure the connection strength between the cross-shaped fixing frame 5 and the muffler body 8, and also provide a stable foundation for the installation and operation of the lifting mechanism, the pushing mechanism and the snap-fit structure.
[0016] In this utility model, when in use: 1. Preparation: Open the hinged cover 15 on one side of the gas supply channel 14 to prepare for the installation of the silencer body 8; 2. Inserting components: Insert the cross-shaped fixing bracket 5 and the muffler body 8 connected to it into the mounting plate 16 through the opening 20 in the middle of the mounting plate 16, so that the muffler body 8 passes through the opening 20, and ensure that the four L-shaped clamping blocks 4 are initially engaged in the four L-shaped slots 18. 3. Snap-fit operation: Rotate the rotating wheel 3, which drives the stud 13 fixedly connected to it to rotate. Since the moving block 12 is screwed onto the stud 13, the rotation of the stud 13 will cause the moving block 12 to descend along the stud 13. 4. Linkage and push: During the descent of the moving block 12, it drives the four rotating rods 11 connected to it to move around one circumference. The rotation of the rotating rods 11 will push the slider 10 to slide in the slide groove 9. 5. Complete the snap-fit: The sliding of the slider 10 drives the moving rod 2, which is fixedly connected to it, to move. The moving rod 2 drives the top rod 1 and the L-shaped clamping block 4 to move in four directions. The top rod 1 is snapped into the limiting groove 19, and the L-shaped clamping block 4 is firmly abutted and snapped into the L-shaped slot 18, thus realizing a firm connection between the muffler body 8 and the mounting plate 16.
[0017] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A silencer for reducing air conditioning noise, comprising a mounting plate (16), characterized in that, The lower end of the mounting plate (16) is connected to a connecting channel (17), and the upper end of the mounting plate (16) is equipped with an air supply channel (14). A cover (15) is hinged to one side of the air supply channel (14). An opening (20) is provided in the middle of the mounting plate (16). Each of the four corners of the opening (20) is provided with a limiting groove (19) and an L-shaped slot (18). A limiting groove (19) on the same side and an L-shaped slot (18) on the same side are connected. A muffler body (8) is provided through the opening (20). A cross-shaped fixing frame (5) is fixed to the upper end of the muffler body (8). A lifting mechanism is installed in the middle of the upper end of the cross-shaped fixing frame (5). Four pushing mechanisms are connected around the lifting mechanism. A moving rod (2) is connected to one end of the pushing mechanism. A snap-fit structure is connected to one end of the moving rod (2). A snap-fit structure on the same side snaps into a limiting groove (19) and an L-shaped slot (18) on the same side.
2. A silencer for air conditioner noise reduction according to claim 1, characterized in that: The lifting mechanism includes a stud (13) rotatably connected to the middle of the upper end of the cross-shaped fixed frame (5), a rotating wheel (3) is fixed to the upper end of the stud (13), and a moving block (12) is threaded onto the stud (13).
3. A silencer for air conditioner noise reduction according to claim 2, characterized in that: The pushing mechanism includes four rotating rods (11) rotatably connected to the moving block (12) around one revolution. The upper end of the cross-shaped fixing frame (5) is provided with four sliding grooves (9) at equal intervals. A slider (10) is installed in the sliding groove (9). A rotating rod (11) on the same side is rotatably connected to the upper end of a slider (10) on the same side. One end of a moving rod (2) on the same side passes through the side wall of the sliding groove (9) and is fixed to one side of a slider (10).
4. A silencer for air conditioner noise reduction according to claim 1, characterized in that: The snap-fit structure includes a top rod (1) fixed on one side of the moving rod (2). One end of the top rod (1) is fixed with an L-shaped clamping block (4). One top rod (1) on the same side is snapped into a limiting groove (19) on the same side, and one L-shaped clamping block (4) on the same side is snapped into an L-shaped slot (18) on the same side.
5. A silencer for air conditioner noise reduction according to claim 1, characterized in that: The lower ends of the cross-shaped fixing bracket (5) are fixed with fixing blocks (7) on both sides, and a connecting arm (6) is fixed on one side of the lower end of the fixing block (7). One end of a connecting arm (6) on the same side is fixed inside the muffler body (8).