Silencer structure

Abstract

The utility model belongs to the technical field of silencers, and discloses a silencer structure which comprises an air inlet pipe, the outer side of the air inlet pipe is sleeved with a sealing cover, a partition plate is fixedly connected to the interior of the sealing cover, a connecting rod is slidably connected to the interior of the partition plate, one end of the connecting rod is fixedly connected with a positioning block, and the other end of the connecting rod is fixedly connected with a connecting rod. A shell is attached to the interior of the sealing cover, a first spring is embedded in the shell, one end of the first spring is fixedly connected with a top ring, and a limiting groove is formed in the shell. By means of the technical scheme, the problems that in the prior art, when a silencer needs to be maintained, the silencer cannot be rapidly disassembled and assembled, and the service life of the silencer is prolonged are solved. The problems that workers are difficult to maintain, the working efficiency of the workers is reduced, and the practicability of the silencer is not high are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mufflers, in particular to a muffler structure. Background Art

[0002] A silencer is a noise reduction device that can be used in air flow ducts that also transmit noise. It can use pipes and elbows with sound-absorbing linings, or pipes with sudden changes in cross-sectional area and other discontinuous acoustic impedance to attenuate or reflect the noise in the pipe. In life, silencers are used in all aspects to improve people's quality of life.

[0003] At the same time, a muffler structure with application number 202020780643.3 includes an intake pipe, an outer shell, an exhaust pipe, a side panel, a partition A, and an arc-shaped sound-absorbing wall. The ventilation pipe passes through partition A and is arranged on the right side of partition B, and the ventilation pipe is provided with evenly arranged small holes on the surface of the left part of partition A; the ventilation pipe B passes through partition C and is arranged on the left side of partition B; the arc-shaped sound-absorbing wall is placed between partition A and partition B. The setting of the two branch pipes enables the two branch pipes to divert the high-pressure gas coming in from the intake pipe. The setting of the small holes on the surface of the ventilation pipe A enables the gas to be released through the evenly arranged small holes on the surface of the ventilation pipe A, thereby slowing down the gas flow rate. In addition, an arc-shaped sound-absorbing wall is provided between partition A and partition B, which can better reduce noise, increase the movement distance of the gas cylinder, and further smooth the gas flow rate. The setting of a 30° inclination angle at the end of the exhaust pipe can slow down the exhaust gas again during the final discharge process.

[0004] In the use process of an existing muffler structure, if the internal muffler components are damaged due to long-term use, the muffler cannot be quickly disassembled and installed, which makes it difficult for workers to repair, reduces work efficiency, and is not practical.

[0005] Therefore, a muffler structure is proposed to solve the above problems. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the utility model provides a muffler structure, which has the advantage of being able to quickly disassemble and install the muffler.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a muffler structure, including an intake pipe, a sealing cover is sleeved on the outer side of the intake pipe, a partition plate is fixedly connected to the inside of the sealing cover, a connecting rod is slidably connected to the inside of the partition plate, one end of the connecting rod is fixedly connected to a positioning block, an outer shell is fitted inside the sealing cover, a first spring is embedded inside the outer shell, one end of the first spring is fixedly connected to a top ring, and a limiting groove is provided inside the outer shell.

[0008] Preferably, a first partition is fitted inside the shell, a first ventilation pipe is inserted and connected inside the first partition, a second partition is sleeved on the outer side of the first ventilation pipe, a second ventilation pipe is inserted and connected inside the second partition, and an exhaust pipe is inserted and connected inside the second partition.

[0009] Preferably, a sound-absorbing lining is fitted onto the inner wall of the shell, and the material of the sound-absorbing lining is a low-carbon steel wire mesh.

[0010] Preferably, an L-shaped block is fixedly connected to the inner wall of the shell, and a groove is formed at one end of the second partition plate, and the cross-sectional area of ​​the groove is the same as the cross-sectional area of ​​one end of the L-shaped block.

[0011] Preferably, a second spring is embedded inside the shell, and one end of the second spring is fixedly connected to a limiting block.

[0012] Preferably, one end of the connecting rod is fixedly connected with a round block, and the round block and the positioning block are respectively arranged on both sides of the partition plate.

[0013] Preferably, an extrusion plate is embedded inside the sealing cover, a tightening cover is fitted on one side of the extrusion plate, the outer side of the tightening cover is spirally connected to the inner wall of the sealing cover, and a handle is fixedly connected to one side of the tightening cover.

[0014] Preferably, the number of the first ventilation pipes and the number of the second partitions are both three, which are arranged in a ring around the axis of the shell.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model sets a sealing cover. When the muffler is installed, the sealing cover is sleeved on the outside of the shell, and the connecting rod is inserted into the inside of the shell. The connecting rod drives the positioning block fixedly connected at one end to squeeze the top ring, and the sealing cover is rotated to make the positioning block embedded in the limiting groove provided inside the shell. At this time, the spring pushes the top ring to apply pressure to the positioning block to fix it, thereby completing the sealing of the muffler. If disassembly is required, the sealing cover can be taken out by simply rotating it, thereby realizing rapid disassembly and installation of the muffler, reducing the work intensity of the staff, and improving work efficiency. The structure is highly practical.

[0017] 2. The utility model sets a first ventilation pipe. When the air flows in from the air inlet pipe, the gas will pass through three first ventilation pipes, then through three second ventilation pipes, and finally be discharged through the exhaust pipe. The sudden change in cross-sectional area is used to attenuate the noise in the pipeline and reflect it back under the action of the first partition and the second partition, so as to achieve the effect of reducing decibels. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic cutaway diagram of the overall structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the cutaway structure of the housing of the utility model;

[0021] Figure 4 This is a schematic diagram of the cutaway separation structure of the utility model;

[0022] Figure 5 For this utility model Figure 2 Schematic diagram of the structure at point A.

[0023] In the figure: 1. air inlet pipe; 2. sealing cover; 3. outer shell; 4. connecting rod; 5. positioning block; 6. first spring; 7. top ring; 8. limiting groove; 9. first partition; 10. first ventilation pipe; 11. second partition; 12. second ventilation pipe; 13. exhaust pipe; 14. silencer lining; 15. L-shaped block; 16. second spring; 17. limiting block; 18. round block; 19. extrusion plate; 20. tightening cover; 21. groove; 22. partition plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figures 1 to 5 As shown, the utility model provides a muffler structure, including an intake pipe 1, a sealing cover 2 is sleeved on the outer side of the intake pipe 1, the sealing covers 2 are respectively arranged on both sides of an outer shell 3, a partition plate 22 is fixedly connected to the inside of the sealing cover 2, a connecting rod 4 is slidably connected to the inside of the partition plate 22, a positioning block 5 is fixedly connected to one end of the connecting rod 4, an outer shell 3 is fitted inside the sealing cover 2, a first spring 6 is inlaid inside the outer shell 3, a top ring 7 is fixedly connected to one end of the first spring 6, and a limiting groove 8 is provided inside the outer shell 3.

[0026] Specifically, a first partition plate 9 is fitted inside the outer shell 3, a first ventilation pipe 10 is inserted and connected inside the first partition plate 9, a second partition plate 11 is sleeved on the outer side of the first ventilation pipe 10, a second ventilation pipe 12 is inserted and connected inside the second partition plate 11, and an exhaust pipe 13 is inserted and connected inside the second partition plate 11.

[0027] Furthermore, a sound-absorbing lining 14 is fitted on the inner wall of the outer shell 3, and the material of the sound-absorbing lining 14 is a low-carbon steel wire mesh, which can effectively block the noise transmitted from the inside and play an effect of reducing decibels.

[0028] Furthermore, an L-shaped block 15 is fixedly connected to the inner wall of the outer shell 3, and a groove 21 is opened at one end of the second partition 11, and the cross-sectional area of ​​the groove 21 is the same as the cross-sectional area of ​​one end of the L-shaped block 15, which is convenient for quickly positioning the second partition 11 and preventing it from rotating inside the outer shell 3.

[0029] It is worth mentioning that a second spring 16 is embedded inside the outer shell 3, and one end of the second spring 16 is fixedly connected to a limiting block 17. Under the action of the second spring 16, the second spring 16 will push the limiting block 17, and the limiting block 17 will limit the first partition 9 and the second partition 11 to prevent them from sliding inside the outer shell 3.

[0030] It is worth noting that one end of the connecting rod 4 is fixedly connected with a round block 18, and the round block 18 and the positioning block 5 are respectively arranged on both sides of the partition plate 22. Under the action of the partition plate 22, the connecting rod 4 can be prevented from falling and play a supporting role.

[0031] It is worth mentioning that an extrusion plate 19 is embedded inside the sealing cover 2, which can make the force on the positioning block 5 uniform and facilitate pressure to be applied thereto. A tightening cover 20 is fitted on one side of the extrusion plate 19, and the outer side of the tightening cover 20 is spirally connected to the inner wall of the sealing cover 2, and a handle is fixedly connected to one side of the tightening cover 20, which is convenient for the staff to manually turn the tightening cover 20.

[0032] It is worth emphasizing that the number of the first ventilation pipes 10 and the second partitions 11 are both three, which are arranged in a ring around the axis of the shell 3. By utilizing sudden changes in cross-sectional area and discontinuous pipes, it is beneficial to reduce noise and improve efficiency.

[0033] Working principle and process:

[0034] When the staff installs the silencer, they first embed the first partition plate 9 and the second partition plate 11 into the interior of the outer shell 3, and then embed the L-shaped block 15 fixedly connected to the inner wall of the outer shell 3 into the interior of the groove 21 at one end of the partition, so as to quickly position the first partition plate 9 and the second partition plate 11 and prevent them from rotating inside the outer shell 3. Under the action of the second spring 16 embedded in the interior of the outer shell 3, the second spring 16 will push the limit block 17, and the limit block 17 will limit the first partition plate 9 and the second partition plate 11 to prevent them from sliding inside the outer shell 3. Then, the silencer lining 14 is inserted into the interior of the outer shell 3. Since the material of the silencer lining 14 is a low-carbon steel wire mesh, it can effectively block the noise transmitted from the inside and reduce the decibel. Then, the sealing cover 2 is put on the outside of the outer shell 3, and the connecting rod 4 is inserted into the interior of the outer shell 3. The connecting rod 4 drives the positioning block 5 fixed at one end to squeeze the top ring 7, and rotates the sealing cover 2 so that the positioning block 5 is embedded in the limiting groove 8 opened inside the shell 3. At this time, the first spring 6 will push the top ring 7 to apply pressure to the positioning block 5 to fix it and complete the sealing of the muffler. If disassembly is required, turn the handle to drive the tightening cover 20 to rotate, so that the tightening cover 20 pushes the extrusion plate 19, the extrusion plate 19 pushes the round block 18, and the round block 18 pushes the connecting rod 4. The connecting rod 4 drives the positioning block 5 to slide out from the inside of the limiting groove 8. Because the round block 18 and the positioning block 5 are respectively arranged on both sides of the partition plate 22, the connecting rod 4 can be prevented from falling and play a supporting role. Then the sealing cover 2 is rotated and the sealing cover 2 is taken out, thereby realizing the rapid disassembly and installation of the muffler, reducing the work intensity of the staff and improving the work efficiency. The structure has strong practicality.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] 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 muffler structure, comprising an air intake pipe (1), characterized in that: The outer side of the air intake pipe (1) is sleeved with a sealing cover (2), the interior of the sealing cover (2) is fixedly connected with a partition plate (22), the interior of the partition plate (22) is slidably connected with a connecting rod (4), one end of the connecting rod (4) is fixedly connected with a positioning block (5), the interior of the sealing cover (2) is fitted with an outer shell (3), the interior of the outer shell (3) is inlaid with a first spring (6), one end of the first spring (6) is fixedly connected with a top ring (7), and a limiting groove (8) is provided inside the outer shell (3).

2. A muffler structure according to claim 1, characterized in that: A first partition (9) is fitted inside the outer shell (3), a first ventilation pipe (10) is inserted and connected inside the first partition (9), a second partition (11) is sleeved on the outer side of the first ventilation pipe (10), a second ventilation pipe (12) is inserted and connected inside the second partition (11), and an exhaust pipe (13) is inserted and connected inside the second partition (11).

3. A muffler structure according to claim 1, characterized in that: The inner wall of the outer shell (3) is fitted with a sound-absorbing lining (14), and the material of the sound-absorbing lining (14) is a low-carbon steel wire mesh.

4. A muffler structure according to claim 2, characterized in that: An L-shaped block (15) is fixedly connected to the inner wall of the shell (3); a groove (21) is provided at one end of the second partition plate (11); and the cross-sectional area of ​​the groove (21) is the same as the cross-sectional area of ​​one end of the L-shaped block (15).

5. A muffler structure according to claim 1, characterized in that: A second spring (16) is embedded inside the housing (3), and one end of the second spring (16) is fixedly connected to a limiting block (17).

6. A muffler structure according to claim 1, characterized in that: One end of the connecting rod (4) is fixedly connected to a round block (18), and the round block (18) and the positioning block (5) are respectively arranged on both sides of the partition plate (22).

7. A muffler structure according to claim 1, characterized in that: The sealing cover (2) is inlaid with an extrusion plate (19) inside, and a tightening cover (20) is fitted on one side of the extrusion plate (19). The outer side of the tightening cover (20) is spirally connected to the inner wall of the sealing cover (2), and a handle is fixedly connected to one side of the tightening cover (20).

8. A muffler structure according to claim 2, characterized in that: The number of the first ventilation pipes (10) and the number of the second partitions (11) are both three, and they are arranged in a ring around the axis of the outer shell (3).

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