Detachable ventilating duct silencer

Abstract

The utility model discloses a detachable ventilating duct silencer, which relates to the technical field of ventilating ducts, and comprises a first cylinder, four corners of the bottom end of the first cylinder are fixedly connected with connecting blocks, the bottom end of the first cylinder is in lap joint with a second cylinder, the outer walls of the connecting blocks are in inserted connection with the top of the second cylinder, and the top of the second cylinder is in lap joint with the connecting blocks. And the top of the second barrel is in threaded connection with a bolt, the outer wall of the bolt is in threaded connection with the inner wall of the connecting block, and a filtering mechanism is inserted into the right portion of the first barrel. According to the detachable ventilating pipeline silencer, the inserting plate is pulled to drive the spring to stretch, so that the outer wall of the inserting plate is not connected with the inner wall of the first limiting block in an inserted mode any more, then the first limiting block can be pulled out, the outer wall of the first limiting block is not connected with the inner wall of the mounting plate in an inserted mode any more, and then the mounting plate can be taken out of the inner cavity of the first barrel. And the filter screen I, the filter screen II and the filter screen III on the placing plate are replaced or maintained, so that the effect of convenient disassembly is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation ducts, in particular to a detachable ventilation duct muffler. Background Art

[0002] At present, for pipelines that transport air, natural gas, coal gas, harmful gases, etc., the flow speed of the transport medium is relatively fast, which makes the pipelines emit a lot of noise, so pipeline silencers are generally installed on the pipelines to reduce the noise. The pipeline silencers currently sold on the market have high manufacturing process requirements, complex structures, heavy weight, high manufacturing costs, and cannot be disassembled and cleaned, and cannot be used in a large area.

[0003] For example, the Chinese patent with publication number CN210978947U discloses a ventilation duct muffler, which belongs to the field of ventilation duct technology. A ventilation duct muffler includes a shell, the outer wall of the shell is connected with a reinforcing rib, the outer wall of the shell is connected with a filter device by bolts, the top wall of the filter device is connected with a handle, the filter device includes a sealing cover, a filter box, a baffle and a filter screen, the sealing cover is connected to the outer wall of the shell by bolts, the filter box is fixedly connected to the bottom wall of the sealing cover, the baffle is connected to the inner wall of the filter box, the filter screen is connected to the inner wall of the filter box, and the inner wall of the shell is respectively connected with a muffler and a sound absorbing sheet; when used, the utility model can not only play a good sound insulation effect, but also reduce the pollution of the air caused by the emission of toxic gases from chemical plants into the atmosphere, and then the filter device is detachably connected to the inside of the shell, so as to facilitate the removal of the filter device for cleaning, and facilitate the secondary use of the filter device, thereby saving a lot of production costs.

[0004] The existing technology has the following problems:

[0005] The existing ventilation duct silencer has a poor silencing effect when working. At the same time, the existing ventilation duct silencer is more troublesome to disassemble. If the objects in the silencer need to be replaced or maintained later, it is more troublesome, which reduces the practicality of the device. Utility Model Content

[0006] The utility model provides a detachable ventilation duct muffler to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A detachable ventilation duct silencer comprises a first cylinder, wherein the four corners of the bottom end of the first cylinder are fixedly connected to connecting blocks, the bottom end of the first cylinder is overlapped with a second cylinder, the outer wall of the connecting block is plugged into the top of the second cylinder, the top of the second cylinder is threadedly connected with a bolt, the outer wall of the bolt is threadedly connected to the inner wall of the connecting block, the right part of the first cylinder is plugged into a filtering mechanism, the right end of the filtering mechanism is slidably connected to a limiting mechanism, the bottom of the first cylinder is fixedly connected to a silencer mechanism, the filtering mechanism comprises a mounting plate, the outer wall of the mounting plate is plugged into the right part of the first cylinder, the limiting mechanism comprises a plug plate, the left end of the plug plate is slidably connected to the right end of the mounting plate, and the silencer mechanism comprises a fixed sleeve, and the top of the fixed sleeve is fixedly connected to the bottom of the first cylinder.

[0009] Preferably: three placement plates are fixedly connected to the left end of the mounting plate in a linear array, a card block is inserted into the left portion of the placement plate, and the left end of the card block is fixedly connected to the left end of the inner cavity of the first cylinder.

[0010] Preferably: the inner wall of the upper placement plate is inlaid with filter screen 1, the inner wall of the middle placement plate is inlaid with filter screen 2, and the inner wall of the lower placement plate is inlaid with filter screen 3.

[0011] Preferably: one end of the plug plate is fixedly connected to a spring, one end of the spring is fixedly connected to a fixing plate, the left end of the fixing plate is fixedly connected to the right end of the mounting plate, the left part of the fixing plate is plugged into the outer wall of the plug plate, the outer wall of the plug plate is plugged into a limiting block 1, and the outer wall of the limiting block 1 is plugged into the inner wall of the first cylinder.

[0012] Preferably, a guide block is fixedly connected to the left end of the plug plate, an outer wall of the guide block is slidably connected to an inner wall of the mounting plate, and the guide block has a T-shaped shape.

[0013] Preferably, a muffler sheet is fixedly connected to the middle of the inner cavity of the fixed sleeve, an air outlet pipe is fixedly connected to the bottom of the muffler sheet, and the bottom of the air outlet pipe is plugged into the bottom of the second cylinder.

[0014] Preferably, the bottom end of the fixing sleeve is fixedly connected with four plug-in blocks in a circular array, the bottom end of the fixing sleeve is overlapped with a muffler, and the top of the muffler is plugged with the outer wall of the plug-in block.

[0015] Preferably: the bottom of the inner cavity of the silencer is fixedly connected with four limit blocks 2 in a circular array, the outer wall of the limit block 2 is slidably connected with a connecting plate, the inner wall of the connecting plate is movably connected to the outer wall of the outlet pipe, and the bottom end of the connecting plate is fixedly connected to the bottom end of the inner cavity of the second cylinder.

[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0017] 1. The utility model provides a detachable ventilation duct silencer. When the gas enters the fixed sleeve after being filtered, the silencer sheet performs silencer, and at the same time, the silencer tube performs silencer at the same time, so as to prevent the gas from generating excessive noise when passing through the fixed sleeve and the exhaust pipe, thereby achieving a silencer effect.

[0018] 2. The utility model provides a detachable ventilation duct silencer, which can pull the plug plate to drive the spring to stretch so that the outer wall of the plug plate is no longer plugged into the inner wall of the limit block 1, and then the limit block 1 can be pulled out so that the outer wall of the limit block 1 is no longer plugged into the inner wall of the mounting plate, and then the mounting plate can be taken out from the inner cavity of the first cylinder, and the filter screens 1, 2 and 3 placed on the plate can be replaced or maintained, which makes disassembly easy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the main view of the utility model;

[0020] Figure 2 It is a schematic diagram of the cutaway structure of the main view of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the filtering mechanism of the utility model;

[0022] Figure 4 This is an enlarged structural diagram of the utility model at A;

[0023] Figure 5 It is a structural schematic diagram of the silencer mechanism of the utility model.

[0024] In the figure: 1. first cylinder; 11. connecting block; 12. bolt; 13. second cylinder; 14. clamping block; 2. filtering mechanism; 21. mounting plate; 22. placing plate; 23. filter screen one; 24. filter screen two; 25. filter screen three; 3. limiting mechanism; 31. plug-in plate; 32. guide block; 33. spring; 34. fixing plate; 35. limiting block one; 4. silencer mechanism; 41. fixing sleeve; 42. silencer sheet; 43. plug-in block; 44. exhaust pipe; 45. silencer; 46. limiting block two; 47. connecting plate. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1-Figure 3As shown, a detachable ventilation duct silencer comprises a first cylinder 1, the four corners of the bottom end of the first cylinder 1 are fixedly connected with a connecting block 11, the bottom end of the first cylinder 1 is overlapped with a second cylinder 13, the outer wall of the connecting block 11 is plugged into the top of the second cylinder 13, the top of the second cylinder 13 is threadedly connected with a bolt 12, the outer wall of the bolt 12 is threadedly connected to the inner wall of the connecting block 11, a filtering mechanism 2 is plugged into the right part of the first cylinder 1, the right end of the filtering mechanism 2 is slidably connected with a limiting mechanism 3, the bottom of the first cylinder 1 is fixedly connected with a silencer mechanism 4, the filtering mechanism 2 comprises a mounting plate 21, the outer wall of the mounting plate 21 is plugged into the right part of the first cylinder 1, the limiting mechanism 3 comprises a plug plate 31, the left end of the plug plate 31 is slidably connected to the right end of the mounting plate 21, and the silencer mechanism 4 comprises a fixing sleeve 41, and the top of the fixing sleeve 41 is fixedly connected to the bottom of the first cylinder 1.

[0027] The gas is filtered by the filter mechanism 2 to prevent harmful substances from remaining in the gas, and then the noise generated when the gas passes through the ventilation duct is eliminated by the silencer mechanism 4 to avoid excessive noise.

[0028] like Figure 2 As shown, the left end of the mounting plate 21 is fixedly connected with three placement plates 22 in a linear array, the left portion of the placement plate 22 is plugged with a clamping block 14, and the left end of the clamping block 14 is fixedly connected to the left end of the inner cavity of the first cylinder 1.

[0029] By plugging the inner wall of the placement plate 22 into the outer wall of the clamping block 14 , the placement plate 22 is made more stable and does not shake.

[0030] like Figure 2 , Figure 3 As shown, the inner wall of the upper placement plate 22 is inlaid with a filter screen 1 23, the inner wall of the middle placement plate 22 is inlaid with a filter screen 24, and the inner wall of the lower placement plate 22 is inlaid with a filter screen 3 25.

[0031] When the gas enters the first cylinder 1 from the top of the first cylinder 1, the gas is filtered by the filter 1 23, the filter 2 24 and the filter 3 25 to prevent harmful gases in the gas from being discharged into the outside atmosphere and causing air pollution, thereby achieving a filtering effect.

[0032] like Figure 2-Figure 4 As shown, one end of the plug plate 31 is fixedly connected to a spring 33, one end of the spring 33 is fixedly connected to a fixing plate 34, the left end of the fixing plate 34 is fixedly connected to the right end of the mounting plate 21, the left part of the fixing plate 34 is plugged into the outer wall of the plug plate 31, the outer wall of the plug plate 31 is plugged into a limiting block 35, and the outer wall of the limiting block 35 is plugged into the inner wall of the first cylinder 1.

[0033] By pulling the plug plate 31, the spring 33 is stretched so that the outer wall of the plug plate 31 is no longer plugged into the inner wall of the limit block 35. Then the limit block 35 can be pulled out so that the outer wall of the limit block 35 is no longer plugged into the inner wall of the mounting plate 21. Then the mounting plate 21 can be taken out from the inner cavity of the first cylinder 1, and the filter screen 1 23, the filter screen 24 and the filter screen 3 25 on the placement plate 22 can be replaced or maintained.

[0034] like Figure 2-Figure 4 As shown, a guide block 32 is fixedly connected to the left end of the plug plate 31 , and the outer wall of the guide block 32 is slidably connected to the inner wall of the mounting plate 21 , and the outer shape of the guide block 32 is T-shaped.

[0035] When the plugging plate 31 slides, the guide block 32 is driven to slide on the inner wall of the mounting plate 21 , and the guide block 32 guides the plugging plate 31 , so that the plugging plate 31 slides more smoothly.

[0036] like Figure 2 , Figure 5 As shown, a silencer plate 42 is fixedly connected to the middle of the inner cavity of the fixed sleeve 41, an air outlet pipe 44 is fixedly connected to the bottom of the silencer plate 42, the bottom of the air outlet pipe 44 is plugged into the bottom of the second cylinder 13, and four plug blocks 43 are fixedly connected to the bottom end of the fixed sleeve 41 in a circular array, and a silencer tube 45 is overlapped at the bottom end of the fixed sleeve 41, and the top of the silencer tube 45 is plugged into the outer wall of the plug block 43.

[0037] When the gas enters the fixed sleeve 41 after being filtered, it is silenced by the silencer sheet 42 and at the same time, the silencer tube 45 is used to silence the gas, thereby preventing the gas from generating excessive noise when passing through the fixed sleeve 41 and the air outlet pipe 44, thereby achieving a silencer effect.

[0038] like Figure 5 As shown, the bottom of the inner cavity of the silencer 45 is fixedly connected with four limit blocks 46 in a circular array, the outer wall of the limit block 46 is slidably connected with a connecting plate 47, the inner wall of the connecting plate 47 is movably connected to the outer wall of the outlet pipe 44, and the bottom end of the connecting plate 47 is fixedly connected to the bottom end of the inner cavity of the second cylinder 13.

[0039] By rotating the muffler 45, the muffler 45 drives the second limit block 46 to rotate synchronously. When it cannot continue to rotate, the muffler 45 can be pulled upward to be taken out and replaced, thereby achieving a detachable effect.

[0040] The working principle of the utility model is as follows: when working, the gas enters the first cylinder body 1 from the top of the first cylinder body 1, and is filtered by the filter screen 1 23, the filter screen 24 and the filter screen 3 25 to prevent the harmful gas in the gas from being discharged into the outside atmosphere, causing air pollution, thereby achieving a filtering effect; after being filtered, the gas enters the fixed sleeve 41, and is silenced by the silencer sheet 42; at the same time, the silencer 45 is simultaneously silenced to prevent the gas from generating excessive noise when passing through the fixed sleeve 41 and the air outlet pipe 44, thereby achieving a silencer effect; when it is necessary to replace or maintain the objects in the device, the plug plate 31 is pulled to make the plug plate 31 drive the guide block 32 to slide on the inner wall of the mounting plate 21, and the guide block 32 guides the plug plate 31 to make the plug plate 31 more stable when sliding; at the same time, the plug plate 31 drives the spring 33 to stretch, so that the outer wall of the plug plate 31 is no longer plugged into the inner wall of the limit block 1 35, and then the plug plate 31 can be replaced or maintained. The limit block 35 is pulled out so that the outer wall of the limit block 35 is no longer plugged into the inner wall of the mounting plate 21, and the mounting plate 21 can be taken out from the inner cavity of the first cylinder 1, and the filter screens 1 23, 24 and 25 on the placement plate 22 can be replaced or maintained. Thereafter, the bolt 12 is rotated so that the outer wall of the bolt 12 is no longer threadedly connected with the connecting block 11 and the inner wall of the second cylinder 13. Thereafter, the first cylinder 1 can be pulled upward so that the first cylinder 1 drives the fixing sleeve 41 to move upward, so that the bottom end of the first cylinder 1 is no longer overlapped with the top end of the second cylinder 13, and at the same time, the outer wall of the insert block 43 is no longer plugged into the inner wall of the muffler 45. Thereafter, the muffler 45 is rotated so that the muffler 45 drives the limit block 2 46 to rotate synchronously. When it can no longer rotate, the muffler 45 can be pulled upward to be taken out and replaced, which has the effect of being detachable, thereby improving the user experience.

[0041] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A detachable ventilation duct muffler, comprising a first cylinder (1), characterized in that: The four corners of the bottom end of the first cylinder (1) are fixedly connected to connecting blocks (11); the bottom end of the first cylinder (1) is overlapped with a second cylinder (13); the outer wall of the connecting block (11) is plugged into the top of the second cylinder (13); the top of the second cylinder (13) is threadedly connected to a bolt (12); the outer wall of the bolt (12) is threadedly connected to the inner wall of the connecting block (11); the right part of the first cylinder (1) is plugged into a filter mechanism (2); the right end of the filter mechanism (2) is slidably connected to the filter mechanism (2) A limiting mechanism (3) is provided, the bottom of the first cylinder (1) is fixedly connected with a silencer mechanism (4), the filtering mechanism (2) comprises a mounting plate (21), the outer wall of the mounting plate (21) is plugged into the right part of the first cylinder (1), the limiting mechanism (3) comprises a plugging plate (31), the left end of the plugging plate (31) is slidably connected to the right end of the mounting plate (21), and the silencer mechanism (4) comprises a fixing sleeve (41), the top of the fixing sleeve (41) is fixedly connected to the bottom of the first cylinder (1).

2. A detachable ventilation duct muffler according to claim 1, characterized in that: The left end of the mounting plate (21) is fixedly connected to three placement plates (22) in a linear array, the left portion of the placement plate (22) is plugged with a clamping block (14), and the left end of the clamping block (14) is fixedly connected to the left end of the inner cavity of the first cylinder (1).

3. A detachable ventilation duct muffler according to claim 2, characterized in that: The inner wall of the upper placement plate (22) is inlaid with filter screen one (23), the inner wall of the middle placement plate (22) is inlaid with filter screen two (24), and the inner wall of the lower placement plate (22) is inlaid with filter screen three (25).

4. A detachable ventilation duct muffler according to claim 1, characterized in that: One end of the plug plate (31) is fixedly connected to a spring (33), one end of the spring (33) is fixedly connected to a fixing plate (34), the left end of the fixing plate (34) is fixedly connected to the right end of the mounting plate (21), the left part of the fixing plate (34) is plugged into the outer wall of the plug plate (31), the outer wall of the plug plate (31) is plugged into a limiting block 1 (35), and the outer wall of the limiting block 1 (35) is plugged into the inner wall of the first cylinder (1).

5. The detachable ventilation duct muffler according to claim 1, characterized in that: The left end of the plug plate (31) is fixedly connected with a guide block (32), the outer wall of the guide block (32) is slidably connected with the inner wall of the mounting plate (21), and the outer shape of the guide block (32) is T-shaped.

6. A detachable ventilation duct muffler according to claim 1, characterized in that: A sound-absorbing sheet (42) is fixedly connected to the middle of the inner cavity of the fixed sleeve (41), an air outlet pipe (44) is fixedly connected to the bottom of the sound-absorbing sheet (42), and the bottom of the air outlet pipe (44) is plugged into the bottom of the second cylinder (13).

7. The detachable ventilation duct muffler according to claim 1, characterized in that: The bottom end of the fixing sleeve (41) is fixedly connected to four plug blocks (43) in a circular array, the bottom end of the fixing sleeve (41) is overlapped with a muffler (45), and the top of the muffler (45) is plugged into the outer wall of the plug block (43).

8. A detachable ventilation duct muffler according to claim 7, characterized in that: The bottom of the inner cavity of the silencer (45) is fixedly connected to four limit blocks (46) in a circular array, the outer wall of the limit block (46) is slidably connected to a connecting plate (47), the inner wall of the connecting plate (47) is movably connected to the outer wall of the outlet pipe (44), and the bottom end of the connecting plate (47) is fixedly connected to the bottom end of the inner cavity of the second cylinder (13).

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