CN217421248U - Long-distance air supply and ventilation device for tunnel construction - Google Patents

Abstract

The utility model discloses a long distance ventilation unit that supplies air for tunnel construction, including the tunnel body, this internal suction fan that installs of tunnel, the blast pipe is installed on the right side of suction fan, be equipped with protection mechanism on the blast pipe, the square shell is installed on the right side of blast pipe, the right side of square shell is equipped with the ventilation groove, the blast pipe is linked together with the ventilation groove, the filter plate is installed to the upper and lower inner wall in ventilation groove, the upper and lower inner wall in ventilation groove rotates and is connected with reciprocal lead screw, the upper and lower inner wall fixedly connected with guide bar in ventilation groove, threaded connection has the brush hair piece on the reciprocal lead screw, the guide bar runs through the brush hair piece, driving motor is installed to the upper end of square shell. The device is through setting up flow detection device and brush hair piece isotructure, can automatic judgement and clean filter plate, need not the manual work and regularly clears up filter plate, has reduced staff's the amount of labour.

Description

Long-distance air supply and ventilation device for tunnel construction

Technical Field

The utility model relates to a tunnel ventilation technical field especially relates to a long distance ventilation unit that supplies air for tunnel construction.

Background

In tunnel construction of railways, highways, water conservancy, hydropower, industrial and mining, national defense engineering, urban subway engineering and the like, ventilation is an indispensable technical link. Under the condition of mechanized operation, ventilation is adopted to supply fresh air to the construction site in the hole, remove dust and various toxic and harmful gases, create a good working environment and ensure the health and safety of constructors; at the same time, ventilation is also a necessary condition for maintaining the normal operation of the electromechanical devices in the tunnel. For various long tunnel constructions, ventilation often plays a considerable or even decisive role in the construction scheme and the construction organization design of the whole project;

through the retrieval, publication number is CN211287750U, is named as a long distance air supply ventilation unit for tunnel construction, including tunnel body and road surface, and the blast pipe is installed to tunnel body's inside bottom one side, and tunnel face and blast pipe one end of tunnel body are connected with a safety guard, and the other end of blast pipe is connected with the suction fan, and the protection tile is still installed in the outside of blast pipe. The device is used at the construction section inside the tunnel, can provide sufficient oxygen for the construction and construction of a longer tunnel, ensures the breathing of workers, and simultaneously ensures the oxygen required by the combustion of some explosives; although the safety cover that the device set up can completely cut off debris such as leaf, earth and dust, the live time is a long time, and debris such as dust and earth plug up partly safety cover easily, cause the gas flow in the blast pipe to reduce, and the air supply effect reduces, and later stage needs personnel to carry out periodic cleaning, has increased staff's the amount of labour.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a long-distance air supply ventilation device for tunnel construction.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a long distance ventilation unit that supplies air for tunnel construction, includes the tunnel body, this internal suction fan of installing of tunnel, the blast pipe is installed on the right side of suction fan, be equipped with protection mechanism on the blast pipe, the square shell is installed on the right side of blast pipe, the right side of square shell is equipped with the ventilation groove, the blast pipe is linked together with the ventilation groove, filter plate is installed to the upper and lower inner wall of ventilation groove, the upper and lower inner wall rotation of ventilation groove is connected with reciprocal lead screw, the upper and lower inner wall fixedly connected with guide bar of ventilation groove, threaded connection has the brush hair piece on the reciprocal lead screw, the guide bar runs through the brush hair piece, driving motor is installed to the upper end of square shell, driving motor's output shaft extend to the ventilation groove in and with the upper end fixed connection of reciprocal lead screw.

Preferably, a flow detection device is installed on the blast pipe, a control box is installed on the blast pipe, a processor is arranged in the control box, and the flow detection device and the driving motor are both electrically connected with the processor.

Preferably, the upper end of the air supply pipe is provided with a round hole every fixed distance, and the round hole is provided with an air outlet pipe.

Preferably, the brush hair piece includes connecting block, diaphragm and brush hair, the lower extreme of square shell is equipped with the opening that is linked together with the ventilation groove.

Preferably, a protective shell is installed on the air supply pipe, and the flow detection device, the control box and the driving motor are all located in the protective shell.

Preferably, this internal support that is equipped with of tunnel, a plurality of gyro wheels are installed to the lower extreme of support, the suction fan is installed on the support, protection mechanism comprises a plurality of protection tiles, every protection tile is made by hard material.

Compared with the prior art, the device has the advantages that:

1. the utility model discloses a set up driving motor, reciprocal lead screw, guide bar, brush hair piece, filter plate isotructure, the driving motor of setting can drive reciprocal lead screw and rotate, drives reciprocating motion about the brush hair piece promptly, cleans the filter screen, need not artifical manual regularly to clear up.

2. The utility model discloses a set up flow detection device, square shell, control box, treater isotructure, through flow detection device real-time supervision flow, in the course of the work, when the flow is less, start the certain time through treater control driving motor, can realize self-cleaning.

Drawings

Fig. 1 is a schematic structural view of a long-distance air supply and ventilation device for tunnel construction according to the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

fig. 3 is a cross-sectional view of fig. 2.

In the figure: the device comprises a tunnel body 1, a support 2, a suction fan 3, idler wheels 4, an air supply pipe 5, a protective tile 7, an air outlet pipe 8, a protective shell 9, a flow detection device 10, a square shell 11, a control box 12, a ventilation groove 13, a filter screen plate 14, an opening 15, a reciprocating screw rod 16, a guide rod 17, a brush block 18 and a driving motor 19.

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.

Referring to fig. 1-3, a long-distance air supply and ventilation device for tunnel construction comprises a tunnel body 1, a suction fan 3 is installed in the tunnel body 1, an air supply pipe 5 is installed on the right side of the suction fan 3, a protection mechanism is arranged on the air supply pipe 5 and used for protecting the air supply pipe 5 from being damaged, a square shell 11 is installed on the right side of the air supply pipe 5, a ventilation slot 13 is arranged on the right side of the square shell 11, the air supply pipe 5 is communicated with the ventilation slot 13, filter screen plates 14 are installed on the upper inner wall and the lower inner wall of the ventilation slot 13 and used for filtering air and reducing impurities and dust to enter the air supply pipe 5, a reciprocating screw rod 16 is rotatably connected to the upper inner wall and the lower inner wall of the ventilation slot 13, a guide rod 17 is fixedly connected to the upper inner wall and the lower inner wall of the ventilation slot 13, a brush block 18 is connected to the reciprocating screw rod 16 in a threaded manner, the brush block 18 rotates to drive the brush block 18 to reciprocate up and down, one side with bristles is abutted against the filter screen plate 14, the filter screen can be cleaned, the guide rod 17 penetrates through the brush block 18, the driving motor 19 is installed at the upper end of the square shell 11, the output shaft of the driving motor 19 extends into the ventilation groove 13 and is fixedly connected with the upper end of the reciprocating screw rod 16, and the driving motor 19 can drive the reciprocating screw rod 16 to rotate.

The flow detection device 10 is mounted on the blast pipe 5, the flow detection device 10 can adopt an ultrasonic flowmeter to monitor the flow in the blast pipe 5, the control box 12 is mounted on the blast pipe 5, a processor is arranged in the control box 12, the flow detection device 10 and the driving motor 19 are both electrically connected with the processor, when a filter screen plate 14 is used and more dust is adhered, filter screen holes on the filter screen plate 14 are blocked to reduce the flow in the blast pipe 5, the flow detection device 10 transmits flow numerical data into the processor, and after judgment, when the flow is reduced more, the driving motor 19 is started to clean the filter screen plate 14, and if the flow is still not improved, a wireless module or an alarm module can be additionally arranged to remind a worker to maintain;

in addition, a round hole has been seted up on every fixed distance upper end on the blast pipe 5, a tuber pipe 8 is installed to the round hole, brush hair piece 18 includes the connecting block, diaphragm and brush hair, the lower extreme of square shell 11 is equipped with the opening 15 that is linked together with ventilation duct 13, the dust after the clearance of being convenient for is derived, install the protective housing 9 on the blast pipe 5, flow detection device 10, control box 12 and driving motor 19 all are located the protective housing 9, protective apparatus normally works, this internal support 2 that is equipped with in tunnel, a plurality of gyro wheels 4 are installed to the lower extreme of support 2, suction fan 3 installs on support 2, protection mechanism comprises a plurality of protection tiles 7, every protection tile 7 is made by hard material.

The utility model discloses during the use, suction fan 3 moves along with the excavation face, when fixed, connect the inlet scoop of suction fan 3 with one end of blast pipe 5, and start suction fan 3 and supply air, protection tile 7 on the blast pipe 5 can play very big guard action to blast pipe 5, when needing to carry out next excavation face air supply, close suction fan 3, the connection of disconnection suction fan 3 and blast pipe 5, push suction fan 3 to next excavation face, and splice and seal blast pipe 5 with blast pipe 5 who reserves, then cover protection tile 7 and fix, carry out next excavation face air supply;

in the daily use process, the filter screen plate 14 can filter most dust and sundries, when the filter screen plate 14 is used for a long time and the dust is blocked or the sundries are adsorbed on the filter screen plate 14, the flow of the air introduced into the blast pipe 5 is reduced, the flow detection device 10 detects the air and transmits data to the processor, and then the processor judges and starts the driving motor 19 to drive the reciprocating screw rod 16 to rotate, so as to drive the brush block 18 to reciprocate up and down to clean the filter screen plate 14;

the device can automatically judge and clean the filter screen plate 14 by arranging the flow detection device 10, the brush hair blocks 18 and other structures, the filter screen plate 14 does not need to be cleaned manually at regular intervals, and the labor capacity of workers is reduced.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. The long-distance air supply and ventilation device for tunnel construction comprises a tunnel body (1) and is characterized in that a suction fan (3) is installed in the tunnel body (1), an air supply pipe (5) is installed on the right side of the suction fan (3), a protection mechanism is arranged on the air supply pipe (5), a square shell (11) is installed on the right side of the air supply pipe (5), a ventilation groove (13) is formed in the right side of the square shell (11), the air supply pipe (5) is communicated with the ventilation groove (13), a filter screen plate (14) is installed on the upper inner wall and the lower inner wall of the ventilation groove (13), a reciprocating screw rod (16) is rotatably connected to the upper inner wall and the lower inner wall of the ventilation groove (13), a guide rod (17) is fixedly connected to the upper inner wall and the lower inner wall of the ventilation groove (13), a brush block (18) is connected to the reciprocating screw rod (16) through threads, and the guide rod (17) penetrates through the brush block (18), the upper end of the square shell (11) is provided with a driving motor (19), and an output shaft of the driving motor (19) extends into the ventilation groove (13) and is fixedly connected with the upper end of the reciprocating screw rod (16).

2. A long-distance air supply and ventilation device for tunnel construction according to claim 1, wherein a flow detection device (10) is installed on the air supply pipe (5), a control box (12) is installed on the air supply pipe (5), a processor is arranged in the control box (12), and the flow detection device (10) and the driving motor (19) are both electrically connected with the processor.

3. The long-distance air supply and ventilation device for tunnel construction as claimed in claim 1, wherein the air supply pipe (5) is provided with a round hole at the upper end every fixed distance, and the round hole is provided with an air outlet pipe (8).

4. A long distance air supply and ventilation device for tunnel construction according to claim 1, wherein the bristle block (18) comprises a connecting block, a cross plate and bristles, and the lower end of the square housing (11) is provided with an opening (15) communicated with the ventilation groove (13).

5. A long-distance air supply and ventilation device for tunnel construction as claimed in claim 2, wherein a protective casing (9) is mounted on the air supply pipe (5), and the flow detection device (10), the control box (12) and the driving motor (19) are all located in the protective casing (9).

6. A long-distance air supply and ventilation device for tunnel construction according to claim 1, wherein a support (2) is arranged in the tunnel body (1), a plurality of rollers (4) are installed at the lower end of the support (2), the suction fan (3) is installed on the support (2), the protection mechanism is composed of a plurality of protection tiles (7), and each protection tile (7) is made of hard material.

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