CN216811753U

CN216811753U - Tunnel construction ventilation unit

Info

Publication number: CN216811753U
Application number: CN202220059545.XU
Authority: CN
Inventors: 张明强; 朱毅; 潘华成; 王卫东; 程丁杰; 陈剑; 越科云; 袁杰
Original assignee: Chongqing Jiaotong University Traffic Safety Technology Research Institute Co ltd
Current assignee: Chongqing Jiaotong University Traffic Safety Technology Research Institute Co ltd
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2022-06-24
Anticipated expiration: 2032-01-11

Abstract

The utility model discloses a tunnel construction ventilation device, which comprises: a fan guard, an impeller and a protective net; the impeller is arranged in the fan cover and is a component of an impulse steam turbine rotor, a protective net is arranged on one side of the fan cover, and the protective net acts on the fan cover to prevent external objects from entering the fan cover; and the fixing ring is fixedly connected to the fan cover, and the fixing ring is fixedly connected with a connecting block. This tunnel construction ventilation unit, at first, will outer anechoic cover and solid fixed ring thread tightening be in the same place, at this moment can be with outer anechoic cover, the cotton is inhaled to the gradient, interior anechoic cover fixed mounting is in fan cover one side, the amortization of being convenient for is fallen and is made an uproar, then, can promote the carriage to remove when threaded rod thread slipping, can extend the height of reducible equipment when the carriage removes, thereby can finely tune its height, and at last, the protection network that pulls again behind the complete roll-off slot of inserted block one end can separate with the fan cover, convenient to detach protection network is changed.

Description

Tunnel construction ventilation unit

Technical Field

The utility model relates to the technical field of tunnel construction, in particular to a ventilation device for tunnel construction.

Background

The tunnel fan is mainly used for replacing waste gas of vehicles in a tunnel, the waste gas can explode in a mine without long-time tail gas accumulation, a large amount of sulfur dioxide exists in the tail gas, the tunnel can be corroded for a long time, but the existing tunnel construction ventilation device has certain defects, such as the defects;

a tunnel fan for tunnel construction, including supporting tuber pipe, fan blade and motor, the one end of fan main part is connected with supporting tuber pipe, and the other end of fan main part installs fan dustproof screen panel, the display screen is installed in the fan main part outside, power source has been seted up to the side of portable handle, fan main part bottom is connected with the fixed bolster, and the bottom of fixed bolster installs the rubber shock absorber pad, the fan main part outside is equipped with the buckle, and runs through in the buckle and install the LED light. The tunnel fan for tunnel construction is a portable tunnel fan, is light in weight, simple in structure and low in manufacturing cost, is provided with an air pipe and can be freely stretched and lengthened according to the length of a tunnel, and is also provided with a sulfur dioxide detection device which can detect the concentration of sulfur dioxide in the tunnel, and can warn and remind workers when the concentration exceeds the standard so as to avoid accidents;

this prior art solution also presents the following problems when in use:

1. noise elimination and reduction are inconvenient;

2. the height is not convenient to be finely adjusted;

3. the protective net is not convenient to replace;

improvements are needed to address the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a tunnel construction ventilation device, which solves the problems of inconvenience in noise elimination and reduction, inconvenience in height fine adjustment and inconvenience in replacement of a protective net in the current market, which are provided by the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a tunnel construction ventilation device comprising: a fan guard, an impeller and a protective net;

an impeller is installed inside the fan cover and is a component of an impulse steam turbine rotor, a protective net is arranged on one side of the fan cover and acts on the fan cover to prevent external objects from entering the fan cover;

the fan cover is fixedly connected with the fan fixing ring, the fan cover is fixedly connected with the connecting block, an outer noise reduction cover is arranged on one side of the fan cover, a connecting groove is formed in one side of the outer noise reduction cover, the connecting block is embedded in the connecting groove, and a bolt is connected between the outer noise reduction cover and the fixing ring.

Preferably, outer noise elimination cover inner wall one side fixedly connected with gradient inhales the sound cotton, gradient inhales the sound cotton and outer noise elimination cover between the fixedly connected with in the noise elimination cover, the hole of eliminating noise has been seted up to in the cover of eliminating noise inside, can produce the noise when equipment during operation, and the noise can penetrate to gradient through the hole of eliminating noise and inhale the sound cotton inside.

Preferably, the outer noise reduction cover and the inner noise reduction cover are made of stainless steel, the outer noise reduction cover, the inner noise reduction cover and the gradient sound absorption cotton are symmetrically distributed in two groups around the central line of the fan cover, the gradient sound absorption cotton is made of polyester fibers, the gradient sound absorption cotton can convert energy, the purpose of attenuating sound energy is finally achieved, and noise reduction is facilitated.

Preferably, the outer muffler cover includes:

the guide rail is fixedly connected to the bottom of the outer muffling cover, the guide block is connected to the inside of the guide rail in a sliding mode, a support frame is fixedly connected to one side of the guide block and is U-shaped, four groups of the support frame are symmetrically distributed on the center line of the outer muffling cover, and the support frame can pull the guide block to slide in the guide rail.

Preferably, fixedly connected with fixed block between the guided way, threaded connection has the threaded rod on the fixed block, threaded rod one end is passed through the bearing and is connected on the carriage, rotates the threaded rod and carries out the screw thread slip along the fixed block, and at this moment threaded rod one end is passed through the bearing and is rotatory on the carriage.

Preferably, the protection net comprises:

the rectangular block is fixedly connected to one side of the protective net, a slot is formed in the rectangular block, a groove is formed in one side of the fan cover, the rectangular block is embedded in the groove, four groups of the rectangular block and the rectangular block are distributed in an annular array mode about the central line of the protective net, and the pulling pull rod drives the inserting block to slide inwards.

Preferably, the fan guard is fixedly connected with a convex block on one side, extrusion grooves are formed in the convex block and the fan guard and close to the groove, a pull rod penetrates through the extrusion grooves, an inserting block is fixedly connected with one end of the pull rod, the pull rod drives the inserting block to slide inwards, the inserting block is connected to one end of the extrusion grooves in a sliding mode, one end of the inserting block is embedded in the inserting groove, and a spring is fixedly connected between the inserting block and the extrusion grooves.

Preferably, sliding connection is formed among the insertion block, the extrusion groove and the extrusion groove, a telescopic structure is formed between the insertion block and the spring, and when the insertion block moves towards the extrusion groove along the insertion groove, the insertion block can extrude the spring.

Compared with the prior art, the utility model has the beneficial effects that: this tunnel construction ventilation unit, at first, will outer anechoic cover and solid fixed ring thread tightening be in the same place, at this moment can be with outer anechoic cover, the cotton is inhaled to the gradient, interior anechoic cover fixed mounting is in fan cover one side, the amortization of being convenient for is fallen and is made an uproar, then, can promote the carriage to remove when threaded rod thread slipping, can extend the height of reducible equipment when the carriage removes, thereby can finely tune its height, and at last, the protection network that pulls again behind the complete roll-off slot of inserted block one end can separate with the fan cover, convenient to detach protection network is changed.

1. Firstly, two groups of outer muffling covers, gradient sound-absorbing cotton and inner muffling covers are respectively pulled to be placed on one side of a fan cover, then the connecting blocks can be driven to be respectively inserted into the corresponding connecting grooves, then the bolts are rotated to fix the outer muffling covers and the fixing rings in a threaded mode, and at the moment, the outer muffling covers, the gradient sound-absorbing cotton and the inner muffling covers can be fixedly installed on one side of the fan cover, so that noise can be reduced conveniently.

2. Then, before the assembly, the threaded rod is rotated to slide along the fixed block in a threaded manner, one end of the threaded rod is rotated on the support frame through the bearing, the support frame is pushed to move when the threaded rod slides in the threaded manner, the support frame can pull the guide block to slide in the guide rail, and the height of the equipment can be shortened by extending when the support frame moves, so that the height of the equipment can be finely adjusted.

3. Finally, the pulling pull rod drives the insertion block to slide inwards, the insertion block can move towards the extrusion groove along the insertion groove at the moment, the spring can be extruded when the insertion block moves, the protective net is pulled to drive the rectangular block to slide out of the groove after one end of the insertion block completely slides out of the groove, and therefore the protective net can be driven to be separated from the fan cover, and the protective net is convenient to detach and replace.

Drawings

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

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic view of the impeller structure of the present invention;

FIG. 4 is an enlarged view of part A of the present invention;

FIG. 5 is an enlarged view of the part B of the present invention.

In the figure: 1. a fan guard; 2. an impeller; 3. a protective net; 4. a fixing ring; 5. connecting blocks; 6. an outer sound reduction cover; 7. connecting grooves; 8. a bolt; 9. gradient sound-absorbing cotton; 10. an internal silencing cover; 11. a sound-deadening aperture; 12. a guide rail; 13. a guide block; 14. a support frame; 15. a fixed block; 16. a threaded rod; 17. a rectangular block; 18. a slot; 19. a groove; 20. extruding a groove; 21. a bump; 22. a pull rod; 23. inserting a block; 24. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a tunnel construction ventilation device comprising: a fan cover 1, an impeller 2 and a protective net 3;

an impeller 2 is arranged in the fan cover 1, the impeller 2 is a component of an impulse type steam turbine rotor, a protective screen 3 is arranged on one side of the fan cover 1, and the protective screen 3 acts on the fan cover 1 to prevent external objects from entering the fan cover 1; the fixed ring 4 is fixedly connected to the fan cover 1, the fixed ring 4 is fixedly connected with the connecting block 5, the outer noise reduction cover 6 is arranged on one side of the fan cover 1, the connecting groove 7 is formed in one side of the outer noise reduction cover 6, the connecting block 5 is embedded in the connecting groove 7, and the bolt 8 is connected between the outer noise reduction cover 6 and the fixed ring 4. The gradient sound-absorbing cotton 9 is fixedly connected to one side of the inner wall of the outer sound-absorbing cover 6, the inner sound-absorbing cover 10 is fixedly connected between the gradient sound-absorbing cotton 9 and the outer sound-absorbing cover 6, and the sound-absorbing holes 11 are formed in the inner sound-absorbing cover 10. The outer noise reduction cover 6 and the inner noise reduction cover 10 are made of stainless steel, two groups of the outer noise reduction cover 6, the inner noise reduction cover 10 and the gradient sound absorption cotton 9 are symmetrically distributed on the center line of the fan cover 1, and the gradient sound absorption cotton 9 is made of polyester fiber.

The gradient sound-absorbing cotton 9 has the advantages that the step density inside the gradient sound-absorbing cotton is made of porous materials, holes inside the gradient sound-absorbing cotton are communicated, sound enters the holes and then rubs with the walls of the holes of the materials, energy is converted, the purpose of attenuating the sound energy is finally achieved, and noise is reduced conveniently.

The outer muffler cover 6 includes: the guide rail 12 is fixedly connected to the bottom of the outer muffling cover 6, the guide block 13 is connected to the inside of the guide rail 12 in a sliding mode, a support frame 14 is fixedly connected to one side of the guide block 13, the support frame 14 is U-shaped, and four groups of the support frame 14 are symmetrically distributed around the center line of the outer muffling cover 6. Fixed blocks 15 are fixedly connected between the guide rails 12, threaded rods 16 are connected to the fixed blocks 15 in a threaded mode, and one ends of the threaded rods 16 are connected to the supporting frame 14 through bearings.

The threaded rod 16 pushes the support frame 14 to move as it slides through the threads, and the support frame 14 can extend to shorten the height of the device, allowing fine adjustment of its height.

The protection net 3 includes: rectangular block 17, fixed connection is in protection network 3 one side, and rectangular block 17 is inside to have seted up slot 18, and fan guard 1 one side has seted up recess 19, and rectangular block 17 gomphosis is inside recess 19, and recess 19 and rectangular block 17 are the annular array and distribute four groups about the central line of protection network 3. Fan guard 1 one side fixedly connected with lug 21, the lug 21 that is close to recess 19 all has seted up extrusion groove 20 with fan guard 1 is inside, and extrusion groove 20 is inside to run through and is connected with pull rod 22, and pull rod 22 one end fixedly connected with inserted block 23, inserted block 23 sliding connection are in extrusion groove 20 one end, and inserted block 23 one end gomphosis is inside slot 18, fixedly connected with spring 24 between inserted block 23 and the extrusion groove 20. The insertion block 23, the extrusion groove 20 and the extrusion groove 20 form a sliding connection, and a telescopic structure is formed between the insertion block 23 and the spring 24.

After one end of the inserting block 23 completely slides out of the slot 18, the protective net 3 is pulled to drive the rectangular block 17 to slide out of the groove 19, so that the protective net 3 is driven to be separated from the fan cover 1, and the protective net 3 is convenient to disassemble and replace.

The working principle is as follows: as shown in fig. 1-5, when using the tunnel construction ventilation device, first, two sets of the outer muffling cover 6, the gradient sound-absorbing cotton 9, and the inner muffling cover 10 are respectively pulled to be placed on one side of the fan cover 1, at this time, the connecting blocks 5 are respectively inserted into the corresponding connecting grooves 7, then the bolts 8 are rotated to screw-fix the outer muffling cover 6 and the fixing rings 4 together, at this time, the outer muffling cover 6, the gradient sound-absorbing cotton 9, and the inner muffling cover 10 are fixedly installed on one side of the fan cover 1, when the device works, noise is generated, the noise penetrates into the gradient sound-absorbing cotton 9 through the muffling holes 11, the step density inside the gradient sound-absorbing cotton 9 is porous material, the holes inside are connected, the sound is rubbed with the wall of the material after entering, energy conversion is achieved, the purpose of sound attenuation and reduction is finally achieved, noise is facilitated, then, before being assembled, the threaded sliding is performed along the fixing blocks 15 by rotating the threaded rod 16, at this time, one end of the threaded rod 16 rotates on the supporting frame 14 through a bearing, when the threaded rod 16 slides in a threaded manner, the supporting frame 14 pushes the supporting frame 14 to move, the supporting frame 14 pulls the guide block 13 to slide in the guide rail 12, when the supporting frame 14 moves, the height of the equipment can be shortened by extending, so that the height of the equipment can be finely adjusted, finally, the pull rod 22 is pulled to drive the insert block 23 to slide inwards, at this time, the insert block 23 moves towards the extrusion groove 20 along the insertion groove 18, when the insert block 23 moves, the spring 24 is extruded, after one end of the insert block 23 completely slides out of the insertion groove 18, the protective net 3 is pulled to drive the rectangular block 17 to slide out of the groove 19, so that the protective net 3 is driven to be separated from the fan cover 1, and the protective net 3 is convenient to detach and replace, and what is not described in detail in this specification belongs to the prior art that is known to those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof.

Claims

1. A tunnel construction ventilation device comprising: the fan-shaped impeller structure comprises a fan cover (1), an impeller (2) and a protective net (3), and is characterized in that;

an impeller (2) is installed in the fan cover (1), and a protective screen (3) is arranged on one side of the fan cover (1);

the fan cover is characterized by comprising a fixing ring (4) which is fixedly connected to the fan cover (1), wherein a connecting block (5) is fixedly connected to the fixing ring (4), an outer noise reduction cover (6) is arranged on one side of the fan cover (1), a connecting groove (7) is formed in one side of the outer noise reduction cover (6), the connecting block (5) is embedded in the connecting groove (7), and a bolt (8) is connected between the outer noise reduction cover (6) and the fixing ring (4).

2. The ventilation apparatus for tunnel construction according to claim 1, wherein: outer anechoic cover (6) inner wall one side fixedly connected with gradient inhales sound cotton (9), fixedly connected with interior anechoic cover (10) between gradient inhales sound cotton (9) and outer anechoic cover (6), anechoic hole (11) have been seted up to interior anechoic cover (10) inside.

3. The ventilation apparatus for tunnel construction according to claim 2, wherein: the outer noise reduction cover (6) and the inner noise reduction cover (10) are both made of stainless steel, two groups of the outer noise reduction cover (6), the inner noise reduction cover (10) and the gradient sound absorption cotton (9) are symmetrically distributed around the central line of the fan cover (1), and the gradient sound absorption cotton (9) is made of polyester fiber.

4. The ventilation apparatus for tunnel construction according to claim 1, wherein: the outer muffler cover (6) comprises:

the guide rail (12) is fixedly connected to the bottom of the outer muffling cover (6), the guide rail (12) is internally connected with a guide block (13) in a sliding mode, one side of the guide block (13) is fixedly connected with a support frame (14), the support frame (14) is U-shaped, and four groups of the support frame (14) are symmetrically distributed around the center line of the outer muffling cover (6).

5. The ventilation apparatus for tunnel construction according to claim 4, wherein: fixedly connected with fixed block (15) between guided way (12), threaded connection has threaded rod (16) on fixed block (15), threaded rod (16) one end is passed through the bearing and is connected on carriage (14).

6. The ventilation apparatus for tunnel construction according to claim 1, wherein: the protective net (3) comprises:

rectangular block (17), fixed connection be in protection network (3) one side, slot (18) have been seted up to rectangular block (17) inside, fan guard (1) one side is seted up flutedly (19), rectangular block (17) gomphosis is inside flutedly (19), and flutedly (19) and rectangular block (17) are the annular array and distribute four groups about the central line of protection network (3).

7. The ventilation apparatus for tunnel construction according to claim 6, wherein: fan guard (1) one side fixedly connected with lug (21), be close to recess (19) lug (21) and fan guard (1) are inside all seted up extrusion groove (20), extrusion groove (20) inside through connection has pull rod (22), pull rod (22) one end fixedly connected with inserted block (23), inserted block (23) sliding connection is in extrusion groove (20) one end, inserted block (23) one end gomphosis is inside slot (18), fixedly connected with spring (24) between inserted block (23) and extrusion groove (20).

8. The ventilation apparatus for tunnel construction according to claim 7, wherein: the inserting block (23), the extrusion groove (20) and the extrusion groove (20) are in sliding connection, and a telescopic structure is formed between the inserting block (23) and the spring (24).