CN219888272U

CN219888272U - Roots blower muffler

Info

Publication number: CN219888272U
Application number: CN202321716735.5U
Authority: CN
Inventors: 王哲盛; 孟祥忠; 马素勇; 霍鸿祥
Original assignee: Shandong Heng Blower Co ltd
Current assignee: Shandong Heng Blower Co ltd
Priority date: 2023-07-03
Filing date: 2023-07-03
Publication date: 2023-10-24
Anticipated expiration: 2033-07-03

Abstract

The utility model discloses a Roots blower silencer, which relates to the technical field of silencers and comprises a steering pipe, wherein a silencing mechanism is arranged below the steering pipe, the silencing mechanism comprises an auxiliary plate, a guide cylinder and a sound insulation plate, a sound absorption block is arranged below the auxiliary plate, the guide cylinder is arranged below the sound absorption block, a built-in pipe is clamped at the bottom of the guide cylinder, the sound insulation plate is arranged below the built-in pipe, an extension cylinder is sleeved outside the sound insulation plate, and a sleeve is arranged above the extension cylinder; the flange and the reinforcing ring can improve the tightness of muffler bottom and Roots blower connection, and the buffering shell fragment can be to the outside buffering protection of connecting pipe, and the sealing washer can increase the leakproofness of junction, further improves the amortization effect.

Description

Roots blower muffler

Technical Field

The utility model relates to the technical field of silencers, in particular to a Roots blower silencer.

Background

The Roots blower silencer, also called Roots blower silencer, can be used for reducing the noise of air inlet and air outlet of various blowers, and can also be used for reducing noise of exhaust pipelines and other high-pressure blowers.

Among the prior art, as chinese patent CN217270838U discloses a roots fan silencer, which comprises a housin, the inside interval from bottom to top of casing is provided with first otter board, second otter board and third otter board in proper order, fixed mounting has first net section of thick bamboo in the middle between second otter board and the third otter board, be provided with first filling layer between first net section of thick bamboo and the shells inner wall, the casing lower extreme opening, upper end intermediate seal installs the blast pipe, casing upper end corresponds blast pipe position fixed mounting has the fourth otter board, intermediate fixed mounting has the second net section of thick bamboo between third otter board and the fourth otter board.

In the prior art, through increasing noise propagation way, the problem that noise volume is not weakened has been solved, but the sealing effect of the junction of muffler and fan is not ideal, reduces the effect of amortization easily when the air flows, and when the air passes through the muffler, partial impurity and dust can remain inside the muffler, and the inside structure of muffler is clean after difficult dismantlement.

Disclosure of Invention

The utility model aims to solve the problems that in the prior art, the sealing effect of the joint of a silencer and a fan is not ideal, the silencing effect is easy to reduce when air flows, part of impurities and dust can remain in the silencer when the air passes through the silencer, and the inner structure of the silencer is not easy to detach and clean.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a roots fan muffler, includes the steering tube, the steering tube below is provided with noise reduction mechanism, noise reduction mechanism includes accessory plate, guide cylinder and acoustic celotex board, the accessory plate below is provided with the abatvoix, the abatvoix below is provided with the guide cylinder, guide cylinder bottom block has built-in pipe, built-in pipe below is provided with the acoustic celotex board, the extension cylinder has been cup jointed to the acoustic celotex board outside, extension cylinder top is provided with the sleeve, extension cylinder bottom is provided with coupling mechanism, coupling mechanism includes reinforcement circle, flange and connecting rod, reinforcement circle top rigid coupling has the connecting rod, connecting rod top rigid coupling has flange, flange top rigid coupling has an extension cylinder, the connecting flange bottom rigid coupling has the connecting pipe, the sealing washer has been cup jointed to the connecting pipe outside.

Preferably, the top of the sealing ring is fixedly connected with the connecting flange, a buffer elastic sheet is arranged below the sealing ring, and one side of the buffer elastic sheet is fixedly connected with the connecting pipe.

Preferably, the connecting pipe is externally sleeved with two reinforcing rings, and the two reinforcing rings are connected through a limit bolt.

Preferably, the sleeve top has cup jointed the closing plate, the closing plate top has cup jointed the steering tube, the air outlet has been seted up to steering tube one side.

Preferably, the auxiliary boards are three in number, sound absorption blocks are arranged among the three auxiliary boards, limiting blocks are clamped at the bottoms of the auxiliary boards below the auxiliary boards, and one ends of the limiting blocks are fixedly connected with the sleeve.

Preferably, the auxiliary plate is sleeved at the top of the guide cylinder, the extension cylinder is sleeved at the bottom of the guide cylinder, the top of the extension cylinder penetrates through the fixing ring and the sleeve, one side of the fixing ring is fixedly connected with the sleeve, and the bottom of the fixing ring is connected with the extension cylinder in a clamping manner.

Preferably, the bottom of the inner cavity of the extension cylinder is fixedly connected with a supporting rod, three sound insulation plates are sleeved at the top of the supporting rod, and a plurality of through holes are formed in the sound insulation plates.

Compared with the prior art, the utility model has the advantages and positive effects that:

1. in the utility model, the limiting block can limit the installation of the auxiliary plate, so that the auxiliary plate and the sound absorption block can be conveniently installed and detached in the sleeve, and the sound absorption plate can be separated from the extension cylinder, so that the surfaces of the auxiliary plate and the sound absorption plate can be conveniently cleaned after the auxiliary plate and the sound absorption plate are taken out.

2. According to the utility model, the connection flange and the reinforcing ring can improve the connection tightness of the bottom of the silencer and the Roots blower, the buffer elastic sheet can buffer and protect the outer part of the connecting pipe, and the sealing ring can increase the tightness of the connection part, so that the silencing effect is further improved.

Drawings

FIG. 1 is a schematic view of a steering tube structure of a Roots blower muffler according to the present utility model;

FIG. 2 is a schematic view showing the installation of a sound absorbing block of a silencer of a Roots blower;

FIG. 3 is a schematic view showing the installation of a sound-insulating plate structure of a Roots blower muffler according to the present utility model;

fig. 4 is a schematic diagram illustrating the installation of a connection pipe structure of a silencer of a Roots blower according to the present utility model.

Legend description: 1. a steering tube; 2. a sleeve; 3. an extension cylinder; 4. a reinforcing ring; 5. a connecting flange; 51. a seal ring; 6. a sealing plate; 7. an auxiliary plate; 8. a sound-absorbing block; 9. a limiting block; 10. a guide cylinder; 11. a built-in tube; 12. a fixing ring; 13. a sound insulation board; 14. a support rod; 15. a buffer spring plate; 16. a limit bolt; 17. a connecting pipe; 18. and (5) connecting a rod.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

Example 1

Referring to fig. 1-4: the utility model provides a roots fan muffler, includes steering tube 1, and steering tube 1 below is provided with noise reduction mechanism, and noise reduction mechanism includes accessory plate 7, guide cylinder 10 and acoustic celotex board 13, and accessory plate 7 below is provided with the abatvoix 8, and abatvoix 8 below is provided with guide cylinder 10, and guide cylinder 10 bottom block has built-in pipe 11, and built-in pipe 11 below is provided with acoustic celotex board 13, and acoustic celotex board 13 outside has cup jointed extension section of thick bamboo 3, and extension section of thick bamboo 3 top is provided with sleeve 2.

The top of the sleeve 2 is sleeved with a sealing plate 6, the top of the sealing plate 6 is sleeved with a steering tube 1, and one side of the steering tube 1 is provided with an air outlet; the auxiliary boards 7 are three in number, sound absorption blocks 8 are arranged among the three auxiliary boards 7, limiting blocks 9 are clamped at the bottoms of the auxiliary boards 7 positioned below, and one ends of the limiting blocks 9 are fixedly connected with the sleeve 2.

The top of the guide cylinder 10 is sleeved with the auxiliary plate 7, the bottom of the guide cylinder 10 is sleeved with the extension cylinder 3, the top of the extension cylinder 3 penetrates through the fixed ring 12 and the sleeve 2, one side of the fixed ring 12 is fixedly connected with the sleeve 2, and the bottom of the fixed ring 12 is in clamping connection with the extension cylinder 3; the bottom of the inner cavity of the extension cylinder 3 is fixedly connected with a supporting rod 14, three sound insulation plates 13 are sleeved on the top of the supporting rod 14, and a plurality of through holes are formed in the sound insulation plates 13.

The auxiliary plate 7 is utilized to assist the connection of the two sound absorption blocks 8, the sound absorption blocks 8 are convenient to install inside the sleeve 2, the bottom of the auxiliary plate 7 positioned at the bottom is clamped with the limiting block 9, the auxiliary plate 7 and the installation position of the sound absorption blocks 8 inside the sleeve 2 can be limited, the sealing plate 6 is also convenient to open, the auxiliary plate 7 and the sound absorption blocks 8 are taken out from the inside of the sleeve 2, the sound absorption blocks 8 can improve the silencing effect inside the sleeve 2, the sealing plate 6 is rotationally connected with the steering tube 1, the using direction of the steering tube 1 can be adjusted, the air exhaust direction is changed, the three sound insulation plates 13 are connected through vertical rods, the bottoms of the vertical rods are sleeved with the supporting rods 14, the side walls of the supporting rods 14 are fixedly connected with the inner wall of the extending tube 3, the bottoms of the vertical rods can be supported, stable installation and use of the sound insulation plates 13 inside the extending tube 3 are guaranteed, the sound insulation plates 13 inside the extending tube 3 can be detached from the sleeve 2, the extending tube 3 are convenient to take out and clean, through holes are rapidly arranged inside the extending tube 3, and air can be guaranteed to enter the inside the extending tube 3 from the connecting tube 17 and the connecting flange 5.

Example two

As shown in fig. 1-4, a connecting mechanism is arranged at the bottom of the extension cylinder 3, the connecting mechanism comprises a reinforcing ring 4, a connecting flange 5 and a connecting rod 18, the connecting rod 18 is fixedly connected to the top of the reinforcing ring 4, the connecting flange 5 is fixedly connected to the top of the connecting rod 18, the extension cylinder 3 is fixedly connected to the top of the connecting flange 5, a connecting pipe 17 is fixedly connected to the bottom of the connecting flange 5, and a sealing ring 51 is sleeved outside the connecting pipe 17.

The top of the sealing ring 51 is fixedly connected with the connecting flange 5, a buffer elastic sheet 15 is arranged below the sealing ring 51, and one side of the buffer elastic sheet 15 is fixedly connected with the connecting pipe 17; the outer portion of the connecting pipe 17 is sleeved with two reinforcing rings 4, and the two reinforcing rings 4 are connected through a limit bolt 16.

The reinforcing rings 4 which are symmetrically arranged are utilized to be connected with the bottom of the silencer for reinforcing, shaking of the silencer during use is reduced, the connecting rods 18 are of inner rods and outer rods sleeved with telescopic structures, the inner rods and the outer rods are connected in a sliding mode, the distance between the reinforcing rings 4 and the connecting flange 5 is adjustable through stretching of the connecting rods 18, the installation height of the reinforcing rings 4 is adjusted, the connecting pipes 17 can be sleeved at the connecting ends of the Roots blower, the sealing rings 51 can be wrapped and protected at the bottoms of the connecting flanges 51, leakage of air is reduced, noise is further reduced, the buffer spring plates 15 are arc-shaped, and the outsides of the connecting pipes 17 can be supported and protected when the connecting pipes 17 are sleeved.

The application method and the working principle of the device are as follows: firstly, the inside glass wool fiber and the rock mineral wool fiber that are provided with of sound absorbing piece 8, and sound absorbing piece 8 is porous structure, can guarantee the circulation of air, acoustic celotex board 13 is light circular orifice board, cup joint connecting pipe 17 on the roots motor, buffering shell fragment 15 is the connecting pipe 17 outside and cushion, pull reinforcing ring 4 in flange 5 bottom, connecting rod 18 stretches, adjustable reinforcing ring 4 and flange 5's interval, cup joint reinforcing ring 4 outside the junction, rotate spacing cock 16 and tighten spacing, install the bolt on flange 5 this moment, realize flange 5 and roots fan's stable connection, fan exhaust air gets into extension section of thick bamboo 3 through connecting pipe 17 in, get into guide cylinder 10 after a plurality of acoustic celotex boards 13 handle, be discharged through steering tube 1 after being handled by accessory plate 7 and sound absorbing piece 8, realize the amortization.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims

1. The utility model provides a roots fan muffler, includes steering tube (1), its characterized in that: the steering tube (1) below is provided with noise reduction mechanism, noise reduction mechanism includes accessory plate (7), guide cylinder (10) and acoustic celotex board (13), accessory plate (7) below is provided with sound absorbing block (8), sound absorbing block (8) below is provided with guide cylinder (10), guide cylinder (10) bottom block has built-in pipe (11), built-in pipe (11) below is provided with acoustic celotex board (13), acoustic celotex board (13) outside has cup jointed extension cylinder (3), extension cylinder (3) top is provided with sleeve (2), extension cylinder (3) bottom is provided with coupling mechanism, coupling mechanism includes reinforcement circle (4), flange (5) and connecting rod (18), reinforcement circle (4) top rigid coupling has connecting rod (18), connecting rod (18) top rigid coupling has flange (5), flange (5) top rigid coupling has extension cylinder (3), connecting flange (5) bottom rigid coupling has cup jointed connecting pipe (17), connecting pipe (17) outside has cup jointed sealing washer (51).

2. The Roots blower muffler according to claim 1, wherein: the top of the sealing ring (51) is fixedly connected with the connecting flange (5), a buffer elastic sheet (15) is arranged below the sealing ring (51), and one side of the buffer elastic sheet (15) is fixedly connected with the connecting pipe (17).

3. The Roots blower muffler according to claim 1, wherein: the connecting pipe (17) is externally sleeved with two reinforcing rings (4), and the two reinforcing rings (4) are connected through a limit bolt (16).

4. The Roots blower muffler according to claim 1, wherein: the top of the sleeve (2) is sleeved with a sealing plate (6), the top of the sealing plate (6) is sleeved with a steering tube (1), and one side of the steering tube (1) is provided with an air outlet.

5. The Roots blower muffler according to claim 1, wherein: the auxiliary plates (7) are three in number, sound absorption blocks (8) are arranged between the three auxiliary plates (7), limiting blocks (9) are clamped at the bottoms of the auxiliary plates (7) located below, and one ends of the limiting blocks (9) are fixedly connected with the sleeve (2).

6. The Roots blower muffler according to claim 1, wherein: auxiliary plate (7) has been cup jointed at guide cylinder (10) top, guide cylinder (10) bottom has cup jointed extension section of thick bamboo (3), extension section of thick bamboo (3) top runs through retainer plate (12) and sleeve (2), just retainer plate (12) one side and sleeve (2) fixed connection, just retainer plate (12) bottom and extension section of thick bamboo (3) block connection.

7. The Roots blower muffler according to claim 1, wherein: the bottom of the inner cavity of the extension cylinder (3) is fixedly connected with a supporting rod (14), three sound insulation plates (13) are sleeved at the top of the supporting rod (14), and a plurality of through holes are formed in the sound insulation plates (13).