Multi-cavity multi-stage silencer

Abstract

The utility model relates to the technical field of silencers, in particular to a multi-cavity multi-stage silencer. According to the technical scheme, the silencer comprises a connecting piece and further comprises two silencers fixedly installed on the connecting piece and two gas circuit control mechanisms installed in the connecting piece, and the gas circuit control mechanisms control the communication state of the silencers and the connecting piece. According to the utility model, the two silencers are arranged, and the air paths of the silencers are controlled by the air path control mechanism, so that the silencers can be replaced when equipment runs, and the reduction of the working efficiency caused by the replacement of the silencers can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of mufflers, in particular to a multi-cavity multi-stage muffler. Background Art

[0002] Multi-chamber multi-stage muffler is a device used to reduce airflow noise, commonly used in pipes, ventilation systems and exhaust systems. It achieves the purpose of reducing noise by setting multiple chambers and levels in the airflow propagation path, so that the airflow is reflected and diluted multiple times in it.

[0003] If a multi-chamber multi-stage muffler is damaged, its noise reduction effect will be greatly reduced, and it may even lose its noise reduction function completely. At this time, the noise in the exhaust system will increase significantly, affecting the surrounding environment and personnel. When replacing the muffler, it is necessary to stop the equipment or work in a noisy environment. Stopping the equipment will reduce production efficiency, and working in a noisy environment will cause damage to the physical and mental health of the staff. Summary of the invention

[0004] The utility model aims to solve the problems existing in the background technology and proposes a multi-cavity multi-stage muffler which can ensure that the muffler can be replaced when the equipment is operating normally.

[0005] The technical solution of the utility model: a multi-cavity multi-stage muffler, including a connecting piece, and also includes:

[0006] Two mufflers are fixedly mounted on the connecting piece;

[0007] Two air path control mechanisms are installed in the connecting piece, and the air path control mechanism includes a support plate slidably installed in the connecting piece and a plug slidably installed on the support plate. The air path control mechanism also includes an adjustment component for adjusting the position of the support plate and the plug. The air path control mechanism controls the connection state between the muffler and the connecting piece.

[0008] Optionally, a connector is fixedly mounted on the connector, and the connector is connected to the gas circuit.

[0009] Optionally, a connecting pipe is fixedly mounted on the muffler, and the connecting pipe is connected to the connecting piece.

[0010] Optionally, two groups of support blocks are fixedly installed in the connecting member, each group of support blocks includes two fixed blocks fixedly installed in the connecting member, and a first sliding rod is slidably installed on one group of support blocks, and the two first sliding rods correspond one-to-one to the two support plates and are slidably connected.

[0011] Optionally, the adjustment assembly includes a connecting box fixedly mounted on a support plate, a slider slidably mounted in the connecting box, a spring fixedly mounted between the slider and the connecting box, a screw rod fixedly mounted on the slider, an internal threaded rod rotatably mounted on the connecting piece, and the internal threaded rod is threadedly connected to the screw rod.

[0012] Optionally, the adjusting assembly also includes a limit block fixedly installed in the connecting piece, a pressure plate fixedly installed on the screw rod, a second sliding rod slidably installed on the connecting piece, a driving block fixedly installed on the second sliding rod, a pressure head fixedly installed on the driving block, a push block slidably installed in the connecting piece, a roller rotatably installed on the push block, a driving column slidably installed on the support plate, and the driving column passes through the support plate and is fixedly connected to the plug.

[0013] Optionally, a first return spring is fixedly mounted on the driving block, the other end of which is fixedly connected to the connecting member, and a second return spring is fixedly mounted on the driving column, the other end of which is fixedly connected to the support plate.

[0014] Optionally, the plug is made of elastic rubber, and the plug seals the connecting pipe.

[0015] Compared with the prior art, the utility model has the following beneficial technical effects:

[0016] By setting up two silencers and controlling the silencer gas circuit through the gas circuit control mechanism, one or both silencers can be selectively used. When only one silencer is used, if the muffler in use is damaged, the damaged muffler can be immediately closed and the other muffler can be enabled. When two mufflers are used at the same time, the probability of both mufflers being damaged at the same time is small. When one of the mufflers is damaged, the damaged muffler can be closed and replaced. Therefore, the muffler can be replaced while the equipment is running, which can prevent the work efficiency from being reduced due to the replacement of the muffler. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A structural schematic diagram of an embodiment of the utility model is given;

[0018] Figure 2 Provide an internal cross-sectional view of the utility model;

[0019] Figure 3 The structure diagram of the gas path control mechanism of the utility model is given as follows: Figure 1 ;

[0020] Figure 4 The structure diagram of the gas path control mechanism of the utility model is given as follows: Figure 2 ;

[0021] Figure 5 An internal schematic diagram of a connection box of the utility model is given.

[0022] Figure numerals: 1, connector; 101, connector; 2, silencer; 201, connecting pipe; 3, support plate; 301, plug; 4, connecting box; 401, slider; 402, spring; 403, screw rod; 404, internal threaded rod; 405, limit block; 406, pressure plate; 407, second slide bar; 408, drive block; 409, pressure head; 410, push block; 411, roller; 412, drive column; 5, fixing block; 501, first slide bar; 6, first return spring; 601, second return spring. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Example

[0025] like Figure 1 As shown, a multi-chamber multi-stage silencer proposed by the utility model includes a connector 1, on which a connector head 101 is fixedly mounted, and the connector head 101 is connected to the gas circuit. By connecting the connector head 101 to the gas pipeline, the connector 1 can be connected to the gas pipeline that needs to be silenced. Two silencers 2 are fixedly mounted on the connector 1. A connecting pipe 201 is fixedly mounted on the muffler 2, and the connecting pipe 201 is connected to the connector 1. The gas enters the interior of the muffler 2 through the connector 1, and the silencer is completed by the muffler 2 (the muffler is a prior art and will not be described in detail here).

[0026] like Figure 2-5 As shown, it also includes: two air path control mechanisms installed in the connecting member 1, the air path control mechanism includes a support plate 3 slidably installed in the connecting member 1 and a plug 301 slidably installed on the support plate 3. When the plug 301 corresponds to the two connecting pipes 201, when the plug 301 blocks the connecting pipe 201, the muffler 2 corresponding to the connecting pipe 201 will not pass the airflow, so that the muffler 2 can not work. Two groups of support blocks are fixedly installed in the connecting member 1, each group of support blocks includes two fixed blocks 5 fixedly installed in the connecting member 1, and a first slide bar 501 is slidably installed on one group of support blocks. The two first slide bars 501 correspond to the two support plates 3 one by one and are slidably connected. The first slide bar 501 constrains and guides the sliding path of the support plate 3 inside the connecting member 1.

[0027] Further, the air path control mechanism also includes an adjustment component for adjusting the position of the support plate 3 and the plug 301, and the air path control mechanism controls the connection state between the muffler 2 and the connecting member 1. The adjustment component includes a connecting box 4 fixedly mounted on the support plate 3, a slider 401 slidably mounted in the connecting box 4, a spring 402 fixedly mounted between the slider 401 and the connecting box 4, a screw 403 fixedly mounted on the slider 401, and an internal threaded rod 404 rotatably mounted on the connecting member 1, and the internal threaded rod 404 is threadedly connected to the screw 403. The screw 403 can be driven to move up and down by rotating the internal threaded rod 404. When the muffler 2 needs to be disabled, the internal threaded rod 404 is rotated to drive the screw 403 to move downward, thereby causing the connecting box 4 to move downward, thereby driving the connecting box 4 to move downward, and the connecting box 4 can drive the support plate 3 to slide along the first slide bar 501, thereby driving the plug 301 to move in a direction close to the connecting pipe 201.

[0028] Furthermore, the adjustment component also includes a limit block 405 fixedly installed in the connecting member 1, a pressure plate 406 fixedly installed on the screw rod 403, a second slide rod 407 slidably installed on the connecting member 1, a driving block 408 fixedly installed on the second slide rod 407, a pressure head 409 fixedly installed on the driving block 408, a push block 410 slidably installed in the connecting member 1, a roller 411 rotatably installed on the push block 410, a drive column 412 slidably installed on the support plate 3, the drive column 412 penetrates the support plate 3 and is fixedly connected to the plug 301. When the plug 301 contacts the limit block 405, the pressure plate 406 will abut against the pressure head 409, and the plugging head 301 and the connecting pipe 201 are in a coaxial position, and the limit block 405 will prevent the plugging head 301 from moving downward. At this time, the internal threaded rod 404 is rotated to make the screw rod 403 drive the slider 401 to continue to move downward. At this time, the connecting box 4 is stationary, and the slider compresses the spring 402, thereby keeping the vertical direction of the support plate 3 unchanged, so that the vertical direction of the plugging head 301 will not change. The screw rod 403 moves downwards and the driving block 408 moves downwards through the pressure plate 406. The second slide bar 407 slides on the connecting piece 1. The driving block 408 moves downwards and squeezes the roller 411 laterally, thereby driving the push block 410 to move towards the connecting tube 201 and the driving column 412 to move towards the connecting tube 201, so that the sealing head 301 can be pressed into the inside of the connecting tube 201, thereby completing the sealing of the connecting tube 201.

[0029] You can selectively use one of the mufflers 2 or both of the mufflers 2. When only one muffler 2 is used, if the muffler 2 in use is damaged, you can immediately shut down the damaged muffler 2 and enable the other muffler 2. When two mufflers 2 are used at the same time, the probability of both mufflers 2 being damaged at the same time is small. When one of the mufflers is damaged, shut down the damaged muffler 2 for replacement.

[0030] The driving block 408 is fixedly mounted with a first return spring 6, the other end of which is fixedly connected to the connecting member 1, and the driving column 412 is fixedly mounted with a second return spring 601, the other end of which is fixedly connected to the supporting plate 3. When blocking is not required, the internal threaded rod 404 is reversed, and automatic reset can be performed under the action of the first return spring 6 and the second return spring 601.

[0031] The plug 301 is made of elastic rubber and blocks the connecting pipe 201 , thereby improving the blocking effect of the plug 301 on the connecting pipe 201 .

[0032] Working principle: Rotating the internal threaded rod 404 can drive the screw rod 403 to move up and down. When the muffler 2 needs to be disabled, rotating the internal threaded rod 404 drives the screw rod 403 to move downward, thereby causing the connection box 4 to move downward, thereby driving the connection box 4 to move downward, and the connection box 4 can drive the support plate 3 to slide along the first slide bar 501, thereby driving the plug 301 to move in the direction close to the connection pipe 201. When the plug 301 contacts the limit block 405, the pressure plate 406 will abut against the pressure head 409, and the plugging head 301 and the connection pipe 201 are in a coaxial position, and the limit block 405 will prevent the plug 301 from moving downward. At this time, rotating the internal threaded rod 404 causes the screw rod 403 to drive the slider 401 to continue to move downward. At this time, the connection box 4 is stationary, and the slider compresses the spring 402, thereby keeping the vertical direction of the support plate 3 unchanged, so that the vertical direction of the plugging head 301 will not change. The screw rod 403 moves downwards and the driving block 408 moves downwards through the pressure plate 406. The second slide bar 407 slides on the connecting piece 1. The driving block 408 moves downwards and squeezes the roller 411 laterally, thereby driving the push block 410 to move towards the connecting tube 201 and the driving column 412 to move towards the connecting tube 201, so that the sealing head 301 can be pressed into the inside of the connecting tube 201, thereby completing the sealing of the connecting tube 201.

[0033] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A multi-chamber multi-stage muffler, comprising a connecting piece (1), characterized in that: Also includes: Two mufflers (2) are fixedly mounted on the connecting member (1); Two air path control mechanisms are installed in the connecting piece (1), the air path control mechanisms comprising a support plate (3) slidably installed in the connecting piece (1) and a plug (301) slidably installed on the support plate (3), the air path control mechanisms also comprising an adjustment component for adjusting the position of the support plate (3) and the plug (301), and the air path control mechanisms control the connection state between the muffler (2) and the connecting piece (1).

2. A multi-chamber multi-stage muffler according to claim 1, characterized in that: A connecting head (101) is fixedly mounted on the connecting piece (1), and the connecting head (101) is connected to the gas circuit.

3. A multi-cavity multi-stage muffler according to claim 2, characterized in that: A connecting pipe (201) is fixedly mounted on the muffler (2), and the connecting pipe (201) is in communication with the connecting piece (1).

4. A multi-cavity multi-stage muffler according to claim 3, characterized in that: Two groups of support blocks are fixedly installed in the connecting member (1), each group of support blocks includes two fixed blocks (5) fixedly installed in the connecting member (1), and a first sliding rod (501) is slidably installed on one group of support blocks. The two first sliding rods (501) correspond to the two support plates (3) one by one and are slidably connected.

5. A multi-cavity multi-stage muffler according to claim 4, characterized in that: The adjustment assembly comprises a connection box (4) fixedly mounted on a support plate (3), a slider (401) slidably mounted in the connection box (4), a spring (402) fixedly mounted between the slider (401) and the connection box (4), a screw rod (403) fixedly mounted on the slider (401), an internal threaded rod (404) rotatably mounted on the connection member (1), and the internal threaded rod (404) is threadedly connected to the screw rod (403).

6. A multi-cavity multi-stage muffler according to claim 5, characterized in that: The adjustment assembly also includes a limit block (405) fixedly mounted in the connecting member (1); a pressure plate (406) is fixedly mounted on the screw rod (403); a second slide rod (407) is slidably mounted on the connecting member (1); a driving block (408) is fixedly mounted on the second slide rod (407); a pressure head (409) is fixedly mounted on the driving block (408); a push block (410) is slidably mounted in the connecting member (1); a roller (411) is rotatably mounted on the push block (410); a driving column (412) is slidably mounted on the support plate (3); and the driving column (412) passes through the support plate (3) and is fixedly connected to the plug (301).

7. A multi-cavity multi-stage muffler according to claim 6, characterized in that: A first return spring (6) is fixedly mounted on the driving block (408), and the other end of the first return spring (6) is fixedly connected to the connecting member (1). A second return spring (601) is fixedly mounted on the driving column (412), and the other end of the second return spring (601) is fixedly connected to the support plate (3).

8. A multi-chamber multi-stage muffler according to claim 7, characterized in that: The plug (301) is made of elastic rubber, and the plug (301) seals the connecting pipe (201).

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