CN210290280U

CN210290280U - Noise reduction mechanism of ventilation device for tunnel

Info

Publication number: CN210290280U
Application number: CN201920518181.5U
Authority: CN
Inventors: 李锋; 赵峰; 景宏君
Original assignee: Xian University of Science and Technology
Current assignee: Xian University of Science and Technology
Priority date: 2019-04-17
Filing date: 2019-04-17
Publication date: 2020-04-10
Anticipated expiration: 2029-04-17

Abstract

The utility model discloses a ventilation unit's mechanism of making an uproar falls for tunnel, including the ventilation unit body, the input and the output of ventilation unit body all overlap and are equipped with the muffler, the solid fixed ring of the equal fixedly connected with in both sides on ventilation unit body surface, the both sides on ventilation unit body surface all overlap and are equipped with the hollow tube, the inner wall of hollow tube and the inboard fixed connection of muffler, the hollow tube is located solid fixed ring's the outside. The utility model discloses a set up ventilation unit body, muffler, solid fixed ring, hollow tube, first spring, kicking block, fixture block, draw the piece, horizontal piece, second spring, acoustic celotex pipe, soundproof cotton, amortization piece and leading note pipe's cooperation and use, solved current ventilation unit and can't fall the noise to the noise, influence the problem of user's work easily, this ventilation unit for tunnel falls the mechanism of making an uproar, possesses the advantage of making an uproar, has improved ventilation unit's practicality.

Description

Noise reduction mechanism of ventilation device for tunnel

Technical Field

The utility model relates to a tunnel ventilation technical field specifically is a ventilation unit's mechanism of making an uproar falls in tunnel.

Background

The tunnel ventilation fan is also called tunnel efflux fan, tunnel fan, efflux fan, and the wide application is in the in-service use in tunnels such as hydraulic dam engineering, highway, railway, subway, and tunnel efflux fan has: one-way efflux fan, two-way efflux fan have electronic type and mechanical type, can just reverse in 30 seconds and switch to the rated revolution of fan, to the high occasion of noise requirement, product characteristics: the special machine tool for the shell inlet is used for spinning and flanging to form, the inner wall of the impeller section is subjected to finish machining, and the special machine tool is corrosion-resistant, reliable and economical, can be additionally provided with a silencer to reduce the noise, is driven in a direct connection mode, and is small in maintenance workload.

At tunnel ventilation's in-process, need use ventilation unit to ventilate to the inside in tunnel, when ventilation unit used, can produce a large amount of noises, but current ventilation unit can't fall the noise and make an uproar, influences user's work easily, has reduced ventilation unit's practicality.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ventilation unit for tunnel fall mechanism of making an uproar possesses the advantage of making an uproar, has solved current ventilation unit and can't fall the noise and make an uproar, influences the problem of user's work easily.

In order to achieve the above object, the utility model provides a following technical scheme: a noise reduction mechanism of a ventilation device for a tunnel comprises a ventilation device body, wherein the input end and the output end of the ventilation device body are respectively sleeved with a silencer, both sides of the surface of the ventilation device body are respectively and fixedly connected with a fixing ring, both sides of the surface of the ventilation device body are respectively sleeved with a hollow tube, the inner wall of each hollow tube is fixedly connected with the inner side of the silencer, the hollow tube is positioned on the outer side of the fixing ring, the outer side of the fixing ring is provided with a groove matched with the hollow tube for use, the inner side of the inner wall of the groove is fixedly connected with a first spring, the outer side of the first spring is fixedly connected with an ejector block, the inner wall of the ejector block is in sliding connection with the inner wall of the groove, the inner side of the hollow tube extends to the inside of the groove, one side of the fixing ring, which is far away from the, one side of the fixture block, which is far away from the ventilation device body, penetrates through the outer side of the fixing ring and is fixedly connected with a pulling block, the surface of the fixture block is fixedly connected with a transverse block, the two sides of the transverse block are both connected with the inner wall of the placing groove in a sliding manner, the surface of the fixture block is sleeved with a second spring, one side of the second spring, which is far away from the ventilation device body, is fixedly connected with the inner wall of the placing groove, one side of the second spring, which is close to the ventilation device body, is fixedly connected with the outer side of the transverse block, the two sides of the surface of the ventilation device body are both sleeved with sound guide pipes, one side of the surface of each sound guide pipe, which is close to the fixing ring, is fixedly connected with the inner wall of the hollow pipe, the surface of each sound guide pipe is fixedly connected with a sound-deadening block, the surface of each sound-proofing block is fixedly connected with sound-proofing cotton, the utility model discloses a soundproof cotton's surface fixed connection has the soundproof cotton pipe, the surface of soundproof cotton pipe and the inner wall fixed connection of hollow tube, the outside of soundproof cotton pipe and the inboard fixed connection of muffler, the inboard of soundproof cotton pipe and the inner wall fixed connection of leading note pipe.

Preferably, the top and the bottom of the inner wall of the ejecting block are fixedly connected with first sliding blocks, the inner wall of the groove is provided with a first sliding groove matched with the first sliding blocks for use, and the ejecting block and the groove are annular.

Preferably, the inner side of the clamping block is movably connected with a ball through a rotating shaft, the ball is spherical, and the top and the bottom of the hollow pipe are provided with clamping grooves matched with the clamping block for use.

Preferably, the number of the silencing blocks is not less than six, the silencing blocks are distributed equidistantly, the silencing blocks are trapezoidal, the cross section of the sound guide pipe is L-shaped, and the bottom of the hollow pipe is fixedly connected with a supporting block.

Preferably, the outer side of the top block is fixedly connected with a sealing gasket, the outer side of the sealing gasket is in contact with the inner side of the hollow pipe, and the sealing gasket is annular.

Preferably, the two sides of the transverse block are fixedly connected with second sliding blocks, the inner wall of the placing groove is provided with second sliding grooves matched with the second sliding blocks for use, and the outer side of the pulling block is fixedly connected with a pulling ring.

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

1. the utility model discloses a set up the ventilation unit body, the muffler, solid fixed ring, the hollow tube, first spring, the kicking block, the fixture block, draw the piece, the horizontal piece, the second spring, the acoustic celotex pipe, soundproof cotton, the cooperation of amortization piece and leading note pipe is used, it makes an uproar to fall the input and the output of ventilation unit body for the first time through the muffler, then lead the sound through the noise that noise leading note pipe produced the ventilation unit body, it makes an uproar to fall the noise for the second time through the amortization piece, then fall the noise through soundproof cotton and acoustic celotex pipe to noise and make an uproar for the third time, can reach the purpose of making an uproar now, it can't fall the noise to have solved current ventilation unit and fall, influence the problem of user's work easily, this ventilation unit for the tunnel falls the mechanism of making an uproar.

2. The utility model discloses a cooperation of first slider and first spout is used, can reduce the friction of kicking block and recess, the life of kicking block has been prolonged, spacing effect has been played to the kicking block simultaneously, setting through the ball, can reduce the friction of fixture block and hollow tube, the life of fixture block has been prolonged, cooperation through fixture block and draw-in groove is used, can fix the position of hollow tube, setting through sealed the pad, can prevent the direct contact of hollow tube and kicking block, increase the area of contact of hollow tube and kicking block simultaneously, cooperation through second slider and second spout is used, can reduce the friction of horizontal piece and standing groove, the life of horizontal piece has been prolonged, spacing effect has been played simultaneously to the horizontal piece.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the structure A in FIG. 1 according to the present invention;

fig. 3 is a left sectional view of the hollow tube structure shown in fig. 1 according to the present invention.

In the figure: the device comprises a ventilation device body 1, a silencer 2, a fixing ring 3, a hollow tube 4, a first spring 5, a top block 6, a clamping block 7, a pulling block 8, a transverse block 9, a second spring 10, a sound insulation tube 11, sound insulation cotton 12, a sound insulation block 13, a sound guide tube 14, a first sliding block 15, a rolling ball 16, a supporting block 17, a sealing gasket 18, a second sliding block 19 and a pulling ring 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a noise reduction mechanism of a ventilation device for a tunnel comprises a ventilation device body 1, wherein the ventilation device body 1 is a common tunnel ventilation device on the market, the muffler 2 is a common centrifugal fan muffler on the market, the input end and the output end of the ventilation device body 1 are both sleeved with the muffler 2, both sides of the surface of the ventilation device body 1 are both fixedly connected with fixing rings 3, both sides of the surface of the ventilation device body 1 are both sleeved with hollow tubes 4, the inner walls of the hollow tubes 4 are fixedly connected with the inner sides of the muffler 2, the hollow tubes 4 are positioned on the outer sides of the fixing rings 3, the outer sides of the fixing rings 3 are provided with grooves matched with the hollow tubes 4, the inner sides of the inner walls of the grooves are fixedly connected with first springs 5, the outer sides of the first springs 5 are fixedly connected with ejector blocks 6, the inner walls of the ejector blocks 6 are slidably connected with the inner walls of the grooves, and, the inner wall of the groove is provided with a first sliding groove matched with the first sliding block 15 for use, the shapes of the ejector block 6 and the groove are both annular, the friction between the ejector block 6 and the groove can be reduced by matching the first sliding block 15 and the first sliding groove, the service life of the ejector block 6 is prolonged, the ejector block 6 is limited, the inner side of the hollow tube 4 extends into the groove, the outer side of the ejector block 6 is fixedly connected with a sealing gasket 18, the outer side of the sealing gasket 18 is contacted with the inner side of the hollow tube 4, the sealing gasket 18 is annular, through the arrangement of the sealing gasket 18, the direct contact between the hollow tube 4 and the ejector block 6 can be prevented, the contact area between the hollow tube 4 and the ejector block 6 is increased, one side of the fixing ring 3, which is far away from the hollow tube 4, is provided with a placing groove, a clamping block 7 is arranged inside the placing groove, one side of the clamping block 7, the inner side of the clamping block 7 is movably connected with a ball 16 through a rotating shaft, the ball 16 is spherical, the top and the bottom of the hollow tube 4 are respectively provided with a clamping groove matched with the clamping block 7 for use, the friction between the clamping block 7 and the hollow tube 4 can be reduced through the arrangement of the ball 16, the service life of the clamping block 7 is prolonged, the position of the hollow tube 4 can be fixed through the matched use of the clamping block 7 and the clamping groove, one side of the clamping block 7, far away from the ventilation device body 1, penetrates through the outer side of the fixing ring 3 to be fixedly connected with a pulling block 8, the surface of the clamping block 7 is fixedly connected with a transverse block 9, both sides of the transverse block 9 are respectively in sliding connection with the inner wall of the placing groove, both sides of the transverse block 9 are respectively and fixedly connected with a second sliding block 19, the inner wall of the placing groove is provided with a second sliding groove matched with the second sliding block 19, the friction between the transverse block 9 and the placing groove can be reduced, the service life of the transverse block 9 is prolonged, the transverse block 9 is limited, the second spring 10 is sleeved on the surface of the clamping block 7, one side, far away from the ventilation device body 1, of the second spring 10 is fixedly connected with the inner wall of the placing groove, one side, close to the ventilation device body 1, of the second spring 10 is fixedly connected with the outer side of the transverse block 9, sound guide pipes 14 are sleeved on two sides of the surface of the ventilation device body 1, one side, close to the fixing rings 3, of the surfaces of the sound guide pipes 14 is fixedly connected with the inner wall of the hollow pipe 4, the sound attenuation blocks 13 are fixedly connected to the surfaces of the sound guide pipes 14, the number of the sound attenuation blocks 13 is not less than six, the sound attenuation blocks 13 are distributed at equal intervals, the sound attenuation blocks 13 are trapezoidal, the cross sections of the sound guide pipes 14 are L-shaped, the bottom of the hollow pipe 4 is fixedly connected with the supporting block 17, the outside of amortization piece 13 and soundproof cotton 12 all with the inboard fixed connection of muffler 2, the inboard of amortization piece 13 and soundproof cotton 12 all with leading the inner wall fixed connection of sound pipe 14, the fixed surface of soundproof cotton 12 is connected with gives sound insulation pipe 11, give sound insulation pipe 11 the surface and the inner wall fixed connection of hollow tube 4, give sound insulation pipe 11 the outside and muffler 2's inboard fixed connection, give sound insulation pipe 11 the inboard and leading the inner wall fixed connection of sound pipe 14.

When the ventilating device is used, a user pulls the pull ring 20 outwards, the pull ring 20 moves outwards to drive the pull block 8, the fixture block 7 and the cross block 9 to move outwards, the hollow tube 4 is separated from the groove, the fixture block 7 is separated from the clamping groove, the cross block 8 moves outwards to compress the second spring 10, then the silencer 2 is pulled outwards, the silencer 2 moves outwards to drive the hollow tube 4 and the sound guide tube 14 to move outwards, the silencer 2 and the sound guide tube 14 are sequentially separated from the ventilating device body 1, the silencer 2 can be disassembled at the moment, during installation, the user pushes the silencer 2 inwards to enable the ventilating device body 1 to be sequentially clamped into the sound guide tube 14 and the silencer 2, meanwhile, the hollow tube 4 is clamped into the groove, the hollow tube 4 moves inwards to drive the ejector block 6 to move inwards, the ejector block 6 moves inwards to compress the first spring 5, the ejector block 6 is pushed outwards to move by resilience force of the first spring 5 to enable the outer side of the sealing pad 18 to be always, increase hollow tube 4's leakproofness, then loosen pull ring 20, the resilience force of second spring 10 drives horizontal piece 9 and fixture block 7 and resets, make the inside of fixture block 7 card advances the draw-in groove, fix hollow tube 4's position, muffler 2 can install the completion this moment, when making an uproar, carry out the first time through muffler 2 to ventilator body 1's input and output and fall and make an uproar, then lead the sound through the noise that 14 conduct sound of noise leading pipe produced ventilator body 1, it makes an uproar to carry out the second time through amortization piece 13 to the noise, then carry out the third time through soundproof cotton 12 and acoustic celotex pipe 11 and fall the noise, can reach the purpose of making an uproar this moment.

In summary, the following steps: this ventilation unit for tunnel falls mechanism of making an uproar, ventilation unit body 1, muffler 2, solid fixed ring 3, hollow tube 4, first spring 5, kicking block 6, fixture block 7, draw piece 8, horizontal piece 9, second spring 10, acoustic celotex tube 11, soundproof cotton 12, amortization piece 13 and leading note pipe 14's cooperation is used, has solved current ventilation unit and can't fall the noise and make an uproar, influences the problem of user's work easily.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a mechanism of making an uproar falls in ventilation unit for tunnel, includes ventilation unit body (1), its characterized in that: the silencer (2) is sleeved on the input end and the output end of the ventilating device body (1), the fixing rings (3) are fixedly connected to the two sides of the surface of the ventilating device body (1), the hollow tube (4) is sleeved on the two sides of the surface of the ventilating device body (1), the inner wall of the hollow tube (4) is fixedly connected with the inner side of the silencer (2), the hollow tube (4) is located on the outer side of the fixing rings (3), the outer side of each fixing ring (3) is provided with a groove matched with the hollow tube (4), the inner side of the inner wall of each groove is fixedly connected with a first spring (5), the outer side of each first spring (5) is fixedly connected with a top block (6), the inner wall of each top block (6) is slidably connected with the inner wall of each groove, the inner side of each hollow tube (4) extends to the inside of each groove, one side, far away from the hollow tube, a clamping block (7) is arranged inside the placing groove, one side, close to the ventilating device body (1), of the clamping block (7) penetrates into the hollow tube (4), one side, far away from the ventilating device body (1), of the clamping block (7) penetrates into the outer side of the fixing ring (3) to be fixedly connected with a pull block (8), a transverse block (9) is fixedly connected to the surface of the clamping block (7), two sides of the transverse block (9) are in sliding connection with the inner wall of the placing groove, a second spring (10) is sleeved on the surface of the clamping block (7), one side, far away from the ventilating device body (1), of the second spring (10) is fixedly connected with the inner wall of the placing groove, one side, close to the ventilating device body (1), of the second spring (10) is fixedly connected with the outer side of the transverse block (9), two sides of the surface of the ventilating device body (1) are sleeved with a sound guide, leading note pipe (14) surface is close to the inner wall fixed connection of one side and hollow tube (4) of solid fixed ring (3), the fixed surface of leading note pipe (14) is connected with amortization piece (13), the fixed surface of amortization piece (13) is connected with soundproof cotton (12), the outside of amortization piece (13) and soundproof cotton (12) all with the inboard fixed connection of muffler (2), the inboard of amortization piece (13) and soundproof cotton (12) all with the inner wall fixed connection of leading note pipe (14), the fixed surface of soundproof cotton (12) is connected with sound insulation pipe (11), the surface of sound insulation pipe (11) and the inner wall fixed connection of hollow tube (4), the outside of sound insulation pipe (11) and the inboard fixed connection of muffler (2), the inboard of sound insulation pipe (11) and the inner wall fixed connection of leading note pipe (14).

2. The noise reduction mechanism of a ventilation apparatus for a tunnel according to claim 1, wherein: the top and the bottom of kicking block (6) inner wall all fixedly connected with first slider (15), the inner wall of recess is seted up with first slider (15) cooperation first spout that uses, the shape of kicking block (6) and recess is the annular.

3. The noise reduction mechanism of a ventilation apparatus for a tunnel according to claim 1, wherein: the inner side of the clamping block (7) is movably connected with a ball (16) through a rotating shaft, the ball (16) is spherical, and clamping grooves matched with the clamping block (7) are formed in the top and the bottom of the hollow pipe (4).

4. The noise reduction mechanism of a ventilation apparatus for a tunnel according to claim 1, wherein: six are no less than in the quantity of amortization piece (13), and a plurality of amortization pieces (13) are the equidistance and distribute, the shape of amortization piece (13) is trapezoidal, the cross section of leading note pipe (14) is the L style of calligraphy, the bottom fixedly connected with supporting shoe (17) of hollow tube (4).

5. The noise reduction mechanism of a ventilation apparatus for a tunnel according to claim 1, wherein: the outside fixedly connected with sealed pad (18) of kicking block (6), the inboard contact of the outside and hollow tube (4) of sealed pad (18), the shape of sealed pad (18) is the annular.

6. The noise reduction mechanism of a ventilation apparatus for a tunnel according to claim 1, wherein: the equal fixedly connected with second slider (19) in both sides of horizontal piece (9), the second spout that uses with second slider (19) cooperation is seted up to the inner wall of standing groove, draw outside fixedly connected with pull ring (20) of piece (8).