Small hole type silencer capable of efficiently reducing noise

Abstract

The utility model belongs to the technical field of small-hole silencers, and discloses a small-hole type silencer with efficient noise reduction, which comprises an outer shell and an upper end cover, the upper end cover is mounted on the upper wall of the outer shell, a receding groove is formed in the lower wall of the outer shell, internal threads are arranged on the inner wall of the receding groove, a connecting plate is mounted in the receding groove in a screwing manner through the threads, and the connecting plate is connected with the upper end cover. A connecting pipe is installed in the middle of the connecting plate in an inserted mode and can be connected with an external pipeline, an inner shell is installed on the upper wall of the connecting plate, vent holes are formed in the side wall of the outer shell and the side wall of the inner shell, a fixing shaft is installed on the side wall of the upper end cover in an inserted mode, and a rotating ring is installed on the outer side of the fixing shaft. According to the device, the rotating ring, the supporting rod and the bristles are arranged below the upper end cover of the device, so that the device can clean vent holes in the outer shell and the inner shell through the bristles through rotation of the rotating ring, the device is very convenient to use, the connecting pipe can be blocked through the blocking plate, and swept impurities are prevented from falling into the connecting pipe.

Description

Technical Field

[0001] This utility model relates to the field of small-hole silencers, specifically a small-hole silencer for high-efficiency noise reduction. Background Technology

[0002] When current silencers are in use, industrial noise will be mixed with a small amount of dust and pollution particles after it is generated. Solid particles may accumulate on the inner circumference of the silencer's silencing holes, causing blockage to some extent.

[0003] In a novel small-hole silencer proposed in application number CN202220780238.0, a sliding purge block is provided on the outside of the silencer to clean the holes of the small-hole silencer and prevent them from becoming blocked.

[0004] However, the blowing block in the above document blows air into the muffler, which means that when cleaning the muffler, the dust swept off will enter the muffler, making it more difficult to clean and even causing blockage of the muffler pipes. Utility Model Content

[0005] The purpose of this invention is to provide a small-hole type muffler with high efficiency noise reduction, in order to solve the problem mentioned in the background art that the blowing block blows air into the muffler, which causes the dust swept off during the cleaning of the muffler to enter the muffler, making it more difficult to clean and even causing the muffler pipeline to be blocked.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency noise reduction small-hole type silencer, including an outer shell and an upper end cover. The upper end cover is installed on the upper wall of the outer shell, and a clearance groove is opened on the lower wall of the outer shell. The inner wall of the clearance groove is provided with internal threads. A connecting plate is screwed into the clearance groove through the threads. A connecting pipe is inserted and installed in the middle of the connecting plate. The connecting pipe can be connected to an external pipeline. An inner shell is installed on the upper wall of the connecting plate. Ventilation holes are opened on the side walls of both the outer shell and the inner shell.

[0007] A fixed shaft is inserted into the side wall of the upper cover, a rotating ring is installed on the outside of the fixed shaft, a support rod is installed on the lower wall of the rotating ring, and bristles are installed on the side wall of the support rod. The bristles can fit against the side walls of the outer shell and the inner shell.

[0008] As a preferred embodiment of this utility model, the side wall of the connecting plate is provided with a slot, the slot is connected to the inner cavity of the connecting pipe, and a blocking plate is inserted and installed in the slot to block the connecting pipe.

[0009] As a preferred embodiment of this utility model, the side wall of the blocking plate is provided with a ventilation groove, the cross-section of the ventilation groove is L-shaped, and an air pipe connector is inserted and installed in the ventilation groove, which can be connected to an external air supply pipe.

[0010] As a preferred embodiment of this invention, a lifting ring is installed on the upper wall of the upper end cover.

[0011] As a preferred embodiment of this utility model, the upper and lower side walls of the support rod are provided with mounting grooves, the brush bristles are installed in the mounting grooves, a sliding plate is installed at one end of the brush bristles in the mounting grooves, one end of a spring is installed on the side wall of the sliding plate, and the other end of the spring is in contact with the inner wall of the mounting groove.

[0012] As a preferred embodiment of this utility model, a sealing gasket is fitted to the side wall of the blocking plate, and the sealing gasket can fit against the inner side wall of the slot. A threaded hole is opened on the side wall of the connecting plate, and a bolt is rotatably installed in the threaded hole, and the bolt can fit against the side wall of the blocking plate.

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

[0014] This device features a rotating ring, support rod, and brush bristles located below its upper end cap. The rotating ring and brush bristles facilitate cleaning of the vents on both the outer and inner housings. Furthermore, a blocking plate can seal the connecting pipe, preventing swept-off impurities from entering. Connecting the air pipe to an external air pipe allows air to be blown into the inner and outer housings, expelling swept-off impurities and facilitating internal cleaning. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this patent;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the upper end cap of this patent;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the connecting plate in this patent.

[0018] In the diagram: 1 Outer shell, 2 Upper cover, 3 Relief groove, 4 Connecting plate, 5 Connecting pipe, 6 Inner shell, 7 Vent hole, 8 Fixed shaft, 9 Rotary ring, 10 Support rod, 11 Brush bristles, 12 Slot, 13 Blocking plate, 14 Ventilation slot, 15 Air pipe connector, 16 Lifting ring, 17 Mounting slot, 18 Sliding plate, 19 Spring, 20 Sealing gasket, 21 Threaded hole, 22 Bolt. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3 This utility model provides a technical solution:

[0021] In this technical solution, the high-efficiency noise reduction small hole type silencer includes an outer shell 1 and an upper end cover 2. The upper end cover 2 is installed on the upper wall of the outer shell 1. The lower wall of the outer shell 1 is provided with a relief groove 3. The inner wall of the relief groove 3 is provided with internal threads. A connecting plate 4 is screwed into the relief groove 3 by the threads. A connecting pipe 5 is inserted into the middle of the connecting plate 4. The connecting pipe 5 can be connected to an external pipeline. An inner shell 6 is installed on the upper wall of the connecting plate 4. Ventilation holes 7 are provided on the side walls of both the outer shell 1 and the inner shell 6.

[0022] A fixed shaft 8 is inserted into the side wall of the upper cover 2. A rotating ring 9 is installed on the outside of the fixed shaft 8. A support rod 10 is installed on the lower wall of the rotating ring 9. Brush bristles 11 are installed on the side wall of the support rod 10. The brush bristles 11 can fit against the side walls of the outer shell 1 and the inner shell 6.

[0023] In this technical solution, by rotating the rotating ring 9 below the upper end cover 2, it can drive the support rod 10 and the brush 11 to move. The brush 11 cleans the vent holes 7 on the outer shell 1 and the inner shell 6, so as to avoid the vent holes 7 from being blocked and affecting the noise reduction effect of the device.

[0024] Meanwhile, in this article, the outer shell 1 is installed on the connecting plate 4 by threads, which makes it convenient for workers to disassemble the outer shell 1 and facilitates cleaning of the inside of the outer shell 1 and the inner shell 6;

[0025] In addition, a sealing ring is provided on the connecting plate 4 to ensure the sealing between the outer shell 1 and the connecting plate 4 after the outer shell 1 is installed on the connecting plate 4.

[0026] In some technical solutions, the side wall of the connecting plate 4 is provided with a slot 12, which is connected to the inner cavity of the connecting pipe 5. A blocking plate 13 is inserted into the slot 12 to block the connecting pipe 5.

[0027] In this technical solution, when cleaning the outer shell 1 and the inner shell 6, the blocking plate 13 can be pushed inward to block the connecting pipe 5, thus preventing the impurities swept off by the brush bristles 11 from falling into the connecting pipe 5 during cleaning.

[0028] In some technical solutions, the side wall of the blocking plate 13 is provided with a ventilation groove 14. The cross-section of the ventilation groove 14 is L-shaped. An air pipe connector 15 is inserted and installed in the ventilation groove 14. The air pipe connector 15 can be connected to an external air supply pipe.

[0029] In this technical solution, during the cleaning process, in order to remove impurities from the device, an external air pipe needs to be inserted into the air pipe connector 15 so that air is blown into the ventilation slot 15 through the external air pipe during cleaning. The airflow will enter the inner shell 6 and the outer shell 1 through the ventilation slot 15, and the impurities swept off will be discharged through the vent 7.

[0030] In some technical solutions, a lifting ring 16 is installed on the upper wall of the upper cover 2.

[0031] In this technical solution, the lifting ring 16 makes it easy to hoist the device and move it to the designated installation position.

[0032] In some technical solutions, mounting grooves 17 are provided on both the upper and lower side walls of the support rod 10. The bristles 11 are installed in the mounting grooves 17. A sliding plate 18 is installed at one end of the bristles 11 located in the mounting groove 17. One end of a spring 19 is installed on the side wall of the sliding plate 18. The other end of the spring 19 is in contact with the inner wall of the mounting groove 17.

[0033] In this technical solution, the spring 19 provides a thrust to the sliding plate 18, so that the bristles 11 can fit tightly against the side walls of the outer shell 1 and the inner shell 6, thus avoiding affecting the cleaning effect on the outer shell 1 and the inner shell 6.

[0034] In some technical solutions, a sealing gasket 20 is fitted to the side wall of the blocking plate 13. The sealing gasket 20 can fit with the inner side wall of the slot 12. A threaded hole 21 is opened on the side wall of the connecting plate 4. A bolt 22 is rotatably installed in the threaded hole 21. The bolt 22 can fit with the side wall of the blocking plate 13.

[0035] In this technical solution, the sealing gasket 20 on the side wall of the plug plate 13 can prevent the airflow in the connecting pipe 5 from leaking out through the slot 12, and the position of the plug plate 13 can be fixed by setting the bolt 22.

[0036] Working principle: When it is necessary to clean the vent 7 in this device, the operator first loosens the bolt 22, then inserts the plug plate 13 inward to seal the connecting pipe 5, then connects the external air supply pipe to the air pipe connector 15, and blows air into the ventilation slot 14. The airflow will enter the inner shell 6 and the outer shell 1 through the ventilation slot 15. At the same time, by rotating the fixed shaft 8, the rotating ring 9 under the upper end cover 2 will rotate, which can drive the support rod 10 and the brush 11 to move. The brush 11 cleans the vent 7 on the outer shell 1 and the inner shell 6. At this time, the airflow will discharge the impurities swept off through the vent 7.

[0037] It should be noted that, in this document, relational 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. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A high-efficiency noise reduction small-hole type silencer, comprising an outer shell (1) and an upper end cover (2), characterized in that: The upper wall of the outer shell (1) is fitted with an upper end cover (2), the lower wall of the outer shell (1) is provided with a relief groove (3), the inner wall of the relief groove (3) is provided with an internal thread, a connecting plate (4) is screwed into the relief groove (3) by the thread, a connecting pipe (5) is inserted into the middle of the connecting plate (4), the connecting pipe (5) can be connected to an external pipeline, an inner shell (6) is installed on the upper wall of the connecting plate (4), and ventilation holes (7) are provided on the side walls of both the outer shell (1) and the inner shell (6). A fixed shaft (8) is inserted into the side wall of the upper end cover (2), a rotating ring (9) is installed on the outside of the fixed shaft (8), a support rod (10) is installed on the lower wall of the rotating ring (9), and bristles (11) are installed on the side wall of the support rod (10). The bristles (11) can fit against the side wall of the outer shell (1) and the inner shell (6).

2. The high-efficiency noise reduction small-hole type silencer according to claim 1, characterized in that: The side wall of the connecting plate (4) is provided with a slot (12), which is connected to the inner cavity of the connecting pipe (5). A blocking plate (13) is inserted into the slot (12) and can block the connecting pipe (5).

3. The high-efficiency noise reduction small-hole type silencer according to claim 2, characterized in that: The side wall of the blocking plate (13) is provided with a ventilation groove (14). The cross-section of the ventilation groove (14) is L-shaped. An air pipe connector (15) is inserted and installed in the ventilation groove (14). The air pipe connector (15) can be connected to an external air supply pipe.

4. The high-efficiency noise reduction small-hole type silencer according to claim 1, characterized in that: A lifting ring (16) is installed on the upper wall of the upper end cover (2).

5. The high-efficiency noise reduction small-hole type silencer according to claim 1, characterized in that: The upper and lower side walls of the support rod (10) are provided with mounting grooves (17). The bristles (11) are installed in the mounting grooves (17). A sliding plate (18) is installed at one end of the bristles (11) in the mounting groove (17). One end of a spring (19) is installed on the side wall of the sliding plate (18). The other end of the spring (19) is in contact with the inner wall of the mounting groove (17).

6. The high-efficiency noise reduction small-hole type silencer according to claim 1, characterized in that: A sealing gasket (20) is fitted to the side wall of the blocking plate (13), and the sealing gasket (20) can fit against the inner side wall of the slot (12). A threaded hole (21) is opened on the side wall of the connecting plate (4), and a bolt (22) is rotatably installed in the threaded hole (21), and the bolt (22) can fit against the side wall of the blocking plate (13).

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