High-temperature-resistant exhaust silencing shell

Abstract

The utility model discloses a high-temperature-resistant exhaust silencing shell which comprises an exhaust silencing pipe body and an exhaust connecting pipe, one end of the exhaust silencing pipe body is fixedly connected with a connecting cylinder, a through hole is formed in the outer side of the exhaust silencing pipe body, an expansion chamber is formed in the exhaust silencing pipe body, and the expansion chamber is communicated with the connecting cylinder. Rolling grooves are formed in the circular interior of the connecting cylinder, the locking ring is shifted to move upwards, so that the spring is shrunk under extrusion of the supporting ring, then the supporting ring is far away from the surface of the rolling grooves, the steel balls are in a movable state, then the exhaust connecting pipe can be clamped into the connecting cylinder, and after the locking ring is loosened, the exhaust connecting pipe is clamped into the connecting cylinder. When the exhaust connecting pipe is disassembled, the exhaust connecting pipe is reset under the elastic effect of the spring, the supporting ring blocks the notch of the rolling groove again, the steel ball is clamped into the positioning groove formed in the outer side of the exhaust connecting pipe, the first sealing ring and the second sealing ring are in sealing contact, then the exhaust effect is achieved, and then the rapid disassembly and assembly effect can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of silencing shells, and particularly relates to a high-temperature resistant exhaust silencing shell. Background Art

[0002] A silencing shell is a casing used to wrap mechanical equipment or components. Its main function is to reduce the noise generated during equipment operation by absorbing and isolating sound waves, thereby providing a quieter working environment and reducing noise pollution to the surrounding environment.

[0003] Currently, an exhaust silencing shell is installed on the exhaust pipe of mechanical equipment. However, during the replacement process of the exhaust silencing shell, the disassembly and assembly methods are rather troublesome, usually requiring external tools to remove it. Moreover, the current exhaust silencing shell has a poor high-temperature resistance effect, so it needs to be improved. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a high-temperature resistant exhaust silencing shell to solve the problems mentioned in the above background art, that is, for the exhaust silencing shell currently installed on the exhaust pipe of mechanical equipment, during the replacement process of the exhaust silencing shell, the disassembly and assembly methods are rather troublesome, usually requiring external tools to remove it, and the current exhaust silencing shell has a poor high-temperature resistance effect.

[0005] To achieve the above object, the utility model provides the following technical solution: A high-temperature resistant exhaust silencing shell, including an exhaust silencing pipe body and an exhaust connection pipe. One end of the exhaust silencing pipe body is fixedly connected with a connecting cylinder. Through holes are opened on the outer side of the exhaust silencing pipe body. An expansion chamber is opened inside the exhaust silencing pipe body. Rolling grooves are circularly opened inside the connecting cylinder. Steel balls are slidably connected inside the rolling grooves. A locking ring is slidably connected to the outer side of the connecting cylinder. A support ring is fixedly connected to the lower end inside the locking ring. A spring is fixedly connected between the connecting cylinder and the support ring. A positioning groove is opened on the outer side of the exhaust connection pipe. An inner lining layer, a sound-absorbing layer, a sound-insulating layer, and a reflection layer are respectively arranged inside the exhaust silencing pipe body.

[0006] Preferably, a plurality of the through holes are circularly arranged.

[0007] Preferably, the through holes are communicated with the expansion chamber.

[0008] Preferably, a first sealing ring is fixedly connected to the inner side of the connecting cylinder, and a second sealing ring is fixedly connected to the inner side of the exhaust connection pipe.

[0009] Preferably, the support ring fits on the surface of the connecting cylinder. The connecting cylinder and the exhaust connection pipe are adapted to each other and are in a snap-fit connection.

[0010] Preferably, anti-slip grooves are provided on the outer sides of the locking rings.

[0011] Preferably, the exhaust silencer pipe body and the connecting tube are both made of high temperature resistant alloy material.

[0012] Preferably, the lining layer is made of ceramic fiber, the sound absorbing layer is made of foam metal, the sound insulating layer is made of rock wool, and the reflective layer is made of metal plate.

[0013] Compared with the prior art, the utility model provides a high temperature resistant exhaust silencer housing, which has the following beneficial effects:

[0014] 1. The utility model is provided with a disassembly and assembly mechanism consisting of an exhaust muffler pipe body, a connecting tube, a rolling groove, a steel ball, a first sealing ring, a locking ring, a support ring, a spring and an exhaust connecting tube. When in use, the locking ring is moved upward to make the spring contract under the pressure of the support ring, and then the support ring will be away from the surface of the rolling groove, so that the steel ball is in an active state, and the exhaust connecting tube can be clamped into the inside of the connecting tube. After loosening the locking ring, it will be reset under the elastic action of the spring, and the notch of the rolling groove will be re-sealed by the support ring, so that the steel ball is clamped into the positioning groove provided on the outside of the exhaust connecting tube, and the first sealing ring and the second sealing ring are in sealing contact to perform the exhaust effect, thereby achieving the effect of rapid disassembly and assembly, and it is convenient to perform regular maintenance on it;

[0015] 2. The utility model provides a high-temperature resistant exhaust silencer shell, wherein the exhaust silencer pipe body and the connecting tube are made of high-temperature resistant alloy materials, which can provide structural strength, protect the internal layer from external physical damage, and withstand high temperature. The inner lining layer is close to the inner side of the outer shell, and its main function is heat insulation to prevent high-temperature gas from directly acting on the outer shell, thereby extending the service life of the outer shell. The sound-absorbing layer is located on the inner side of the inner lining layer, and its material has a porous structure, which can effectively absorb sound wave energy and reduce noise. The reflecting layer is located inside the sound-absorbing layer, and through a special structural design, the sound waves are reflected multiple times inside to increase the attenuation of the sound waves. The sound insulation layer is located between the sound-absorbing layer and the reflecting layer, or as an independent layer, and its function is to further isolate the sound waves and improve the overall silencing effect. Therefore, the above structure can be optimized according to the specific exhaust system and application environment to achieve the best silencing effect.

[0016] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model has a scientific and reasonable structure, is safe and convenient to use, and provides great help to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the accompanying drawings:

[0018] Figure 1 It is an axonometric structural schematic diagram of one side of a high-temperature resistant exhaust silencing housing proposed by the present utility model;

[0019] Figure 2 It is an axonometric structural schematic diagram of the other side of a high-temperature resistant exhaust silencing housing proposed by the present utility model;

[0020] Figure 3 It is a structural schematic diagram of a support ring of a high-temperature resistant exhaust silencing housing proposed by the present utility model;

[0021] Figure 4 It is a structural schematic diagram of a steel ball of a high-temperature resistant exhaust silencing housing proposed by the present utility model;

[0022] Figure 5 It is a sectional structural schematic diagram of a high-temperature resistant exhaust silencing housing proposed by the present utility model;

[0023] Figure 6 It is a schematic diagram of a coating of a high-temperature resistant exhaust silencing housing proposed by the present utility model;

[0024] In the figure: exhaust silencing pipe body 1, connecting cylinder 2, through hole 3, expansion chamber 4, rolling groove 5, steel ball 6, first sealing ring 7, locking ring 8, support ring 9, spring 10, anti-slip groove 11, exhaust connecting pipe 12, positioning groove 13, second sealing ring 14, inner lining layer 15, sound absorption layer 16, sound insulation layer 17, reflection layer 18. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figure 1-6The utility model provides a technical solution: a high temperature resistant exhaust silencer shell, comprising an exhaust silencer pipe body 1 and an exhaust connecting pipe 12, wherein one end of the exhaust silencer pipe body 1 is fixedly connected with a connecting tube 2, a through hole 3 is provided on the outside of the exhaust silencer pipe body 1, an expansion chamber 4 is provided inside the exhaust silencer pipe body 1, a circular rolling groove 5 is provided inside the connecting tube 2, a steel ball 6 is slidably connected inside the rolling groove 5, a locking ring 8 is slidably connected to the outside of the connecting tube 2, a support ring 9 is fixedly connected to the lower end of the inner side of the locking ring 8, a spring 10 is fixedly connected between the connecting tube 2 and the support ring 9, a positioning groove 13 is provided on the outside of the exhaust connecting pipe 12, and an inner lining layer 15 is provided inside the exhaust silencer pipe body 1. , sound absorbing layer 16, sound insulation layer 17 and reflecting layer 18, by moving the locking ring 8 upward, the spring 10 is contracted under the pressure of the support ring 9, and then the support ring 9 will be away from the surface of the rolling groove 5, so that the steel ball 6 is in an active state, and the exhaust connecting pipe 12 can be engaged with the inside of the connecting tube 2. After loosening the locking ring 8, it will be reset under the elastic action of the spring 10, and the notch of the rolling groove 5 will be re-blocked by the support ring 9, so that the steel ball 6 is engaged with the positioning groove 13 provided on the outside of the exhaust connecting pipe 12, and the first sealing ring 7 and the second sealing ring 14 are in sealing contact to perform the exhaust effect, thereby achieving the effect of quick disassembly and assembly, which can be convenient for regular maintenance.

[0027] In the present invention, preferably, the through holes 3 are circular and are provided in a plurality.

[0028] In the present invention, preferably, the through hole 3 and the expansion chamber 4 are communicated with each other.

[0029] In the present invention, preferably, a first sealing ring 7 is fixedly connected to the inner side of the connecting tube 2 , and a second sealing ring 14 is fixedly connected to the inner side of the exhaust connecting pipe 12 .

[0030] In the present invention, preferably, the support ring 9 is attached to the surface of the connecting tube 2, and the connecting tube 2 and the exhaust connecting pipe 12 are matched and connected by snap-fitting.

[0031] In the present invention, preferably, anti-slip grooves 11 are provided on the outer sides of the locking rings 8 .

[0032] In the present invention, preferably, the exhaust silencer pipe body 1 and the connecting tube 2 are both made of high-temperature resistant alloy materials, which can provide structural strength, protect the internal layer from external physical damage, and withstand high temperatures.

[0033] In the present invention, preferably, the inner lining layer 15 is made of ceramic fiber material, and its main function is heat insulation to prevent high-temperature gas from directly acting on the outer shell, thereby extending the service life of the outer shell; the sound-absorbing layer 16 is made of foam metal material and is located on the inner side of the inner lining layer. The material has a porous structure and can effectively absorb sound wave energy and reduce noise; the sound-insulating layer 17 is made of rock wool material and is located between the sound-absorbing layer and the reflecting layer, or as an independent layer, and its function is to further isolate sound waves and improve the overall sound-absorbing effect; the reflecting layer 18 is made of metal plate material and is located inside the sound-absorbing layer. Through a special structural design, the sound waves are reflected multiple times inside, thereby increasing the attenuation of the sound waves.

[0034] The working principle and use process of the utility model are as follows: when in use, the exhaust noise reduction process is realized by connecting the exhaust silencer pipe body 1 with the exhaust connecting pipe 12. A rolling groove 5 is arranged inside the connecting tube 2 at one end of the exhaust silencer pipe body 1, and the steel ball 6 slides in the groove. When installation or maintenance is required, the locking ring 8 is moved upward to shrink the spring 10, and the support ring 9 leaves the rolling groove 5 to release the steel ball 6. At this time, the exhaust connecting pipe 12 can be engaged with the inside of the connecting tube 2. After loosening the locking ring 8, the elastic effect of the spring 10 causes the support ring 9 to re-block the rolling groove 5, and the steel ball 6 is engaged with the positioning groove 13 of the exhaust connecting pipe 12. The first sealing ring 7 and the second sealing ring 14 realize the sealing. The through holes 3 are evenly distributed in a circular shape and are connected to the expansion chamber 4, which is conducive to airflow dispersion and noise reduction. The lining layer 15 (ceramic fiber material) plays a heat insulation role to protect the shell from high temperature damage; the sound-absorbing layer 16 (foam metal material) has a porous structure and effectively absorbs sound wave energy; the sound insulation layer 17 (rock wool material) further isolates the sound waves and improves the sound-absorbing effect; the reflective layer 18 (metal plate material) makes the sound waves reflect multiple times inside and increases the sound wave attenuation. The whole device adopts high-temperature resistant alloy material to ensure good structural strength and durability in high temperature environment. Through this design, the utility model realizes fast disassembly and assembly and convenient maintenance, and at the same time achieves the purpose of efficient noise reduction.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-temperature resistant exhaust silencing housing, comprising an exhaust silencing pipe body (1) and an exhaust connecting pipe (12), characterized in that: One end of the exhaust silencing pipe body (1) is fixedly connected with a connecting cylinder (2). A through hole (3) is formed on the outer side of the exhaust silencing pipe body (1). An expansion chamber (4) is formed inside the exhaust silencing pipe body (1). Rolling grooves (5) are formed in a circular shape inside the connecting cylinder (2). Steel balls (6) are slidably connected inside the rolling grooves (5). A locking ring (8) is slidably connected to the outer side of the connecting cylinder (2). A support ring (9) is fixedly connected to the lower end inside the locking ring (8). A spring (10) is fixedly connected between the connecting cylinder (2) and the support ring (9). A positioning groove (13) is formed on the outer side of the exhaust connecting pipe (12). An inner lining layer (15), a sound-absorbing layer (16), a sound-insulating layer (17) and a reflective layer (18) are respectively arranged inside the exhaust silencing pipe body (1).

2. The high-temperature resistant exhaust silencing housing according to claim 1, characterized in that: A number of the through holes (3) are arranged in a circular shape evenly.

3. The high-temperature resistant exhaust silencing housing according to claim 1, characterized in that: The through holes (3) communicate with the expansion chamber (4).

4. A high-temperature resistant exhaust silencing housing according to claim 1, characterized in that: A first sealing ring (7) is fixedly connected to the inner side of the connecting cylinder (2). A second sealing ring (14) is fixedly connected to the inner side of the exhaust connecting pipe (12).

5. The high-temperature resistant exhaust silencing housing according to claim 1, characterized in that: The support ring (9) fits on the surface of the connecting cylinder (2). The connecting cylinder (2) and the exhaust connecting pipe (12) are adapted to each other and are in snap connection.

6. The high-temperature resistant exhaust silencing housing according to claim 1, wherein: Anti-slip grooves (11) are formed on the outer side of the locking ring (8).

7. A high-temperature resistant exhaust silencing housing according to claim 1, characterized in that: Both the exhaust silencing pipe body (1) and the connecting cylinder (2) are made of high-temperature resistant alloy materials.

8. The high-temperature resistant exhaust silencing housing according to claim 1, characterized in that: The inner lining layer (15) is made of ceramic fiber material. The sound-absorbing layer (16) is made of foam metal material. The sound-insulating layer (17) is made of rock wool material. The reflective layer (18) is made of metal plate material.

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