CN114592901A

CN114592901A - Tunnel construction dust shaker

Info

Publication number: CN114592901A
Application number: CN202210400329.1A
Authority: CN
Inventors: 梁建刚; 张勇; 刘斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-16
Filing date: 2022-04-16
Publication date: 2022-06-07

Abstract

The invention is suitable for the related technical field of dust removing equipment, and provides a tunnel construction dust remover which comprises a base and a water tank arranged on the base, wherein one end of the base is movably provided with a transverse plate through a thread lifting mechanism, the thread lifting mechanism is arranged on the base, a dust raising roller is rotatably arranged on the transverse plate, rubber sheets are equidistantly arranged on the outer wall of the dust raising roller along the circumference, the rubber sheets are used for raising dust on the ground in the rotating process of the dust raising roller, the rotating shaft of the dust raising roller is connected with a dust collecting mechanism arranged on the transverse plate, the transverse plate is also movably provided with a dust collecting head through a reciprocating driving mechanism, the dust collecting head is connected with the dust collecting mechanism and used for absorbing the dust raised by the rubber sheets into the water tank, the reciprocating driving mechanism is arranged on the transverse plate and connected with the dust collecting mechanism, and after the dust on the ground is absorbed, the ground is sprayed with water, therefore, the device has strong functionality and good dust removal effect, and is suitable for popularization and use.

Description

Tunnel construction dust shaker

Technical Field

The invention belongs to the technical field of dust removing equipment, and particularly relates to a dust remover for tunnel construction.

Background

A tunnel is a building constructed underground or underwater or in a mountain, with railways or roads for motor vehicles to pass through. The tunnel can be divided into three categories of mountain tunnels, underwater tunnels and urban tunnels according to the positions of the tunnels. A tunnel traversing from a mountain or under a hill to shorten the distance and avoid a large slope is called a mountain tunnel; underwater tunnels passing under a river or sea floor to cross a river or channel; urban tunnels are called urban tunnels that are traversed underground in cities to meet the needs of railways to pass through large cities. The most constructed of these three types of tunnels are mountain tunnels.

Dust generated in the tunnel construction process seriously threatens the health of operating personnel in the tunnel. Long-term dust inhalation is easy to cause a systemic disease, namely pneumoconiosis, mainly caused by diffuse fibrous diseases of lung tissues. Therefore, in order to ensure the health of tunnel constructors and reduce the occurrence of silicosis, the development of tunnel construction dust research and the improvement of dust removal technology become the primary work which is not slow at all.

When the existing dust removing equipment works, dust is absorbed only by the air pump, the dust absorption position is fixed, and the working position of the movable air pump needs to be changed according to the actual situation, so that the existing dust removing equipment is single in function and poor in dust removing effect.

Disclosure of Invention

The invention provides a tunnel construction dust remover, and aims to solve the problem of poor dust removal effect caused by single function of the existing dust removal equipment.

The tunnel construction dust remover comprises a base and a water tank arranged on the base, wherein one end of the base is movably provided with a transverse plate through a thread lifting mechanism, and the thread lifting mechanism is arranged on the base;

the dust collecting device comprises a transverse plate, a dust collecting roller, a dust collecting mechanism and a dust collecting mechanism, wherein the transverse plate is rotatably provided with the dust collecting roller, rubber sheets are arranged on the outer wall of the dust collecting roller at equal intervals along the circumference, the rubber sheets are used for lifting dust on the ground in the rotating process of the dust collecting roller, and the rotating shaft of the dust collecting roller is connected with the dust collecting mechanism arranged on the transverse plate;

the transverse plate is also movably provided with a dust absorption head through a reciprocating driving mechanism, the dust absorption head is connected with the dust absorption mechanism and is used for absorbing dust raised by the rubber sheet into the water tank, and the reciprocating driving mechanism is arranged on the transverse plate and is connected with the dust absorption mechanism;

the water tank is provided with a water pumping mechanism, the water pumping mechanism is connected with a spraying head used for spraying water in the water tank to the ground, and the spraying head is connected with a swinging mechanism arranged on one side of the water tank far away from the transverse plate.

Furthermore, the dust collection mechanism comprises an air pump arranged on the transverse plate and a second driving motor arranged on the side part of the air pump, the output end of the second driving motor is connected with the driving shaft of the air pump, and the driving shaft of the air pump is connected with the rotating shaft of the dust raising roller through a first driving belt;

the filter plate is fixedly arranged in the water tank, the upper portion of the water tank is further provided with an air outlet head, the air outlet head is connected with the air inlet of the air pump through a hose, the air outlet of the air pump is connected with the water tank through a hose, and the driving shaft of the air pump is further connected with the reciprocating driving mechanism.

Further, reciprocating drive mechanism is including installing rotating assembly and sliding assembly on the diaphragm, rotating assembly with the drive shaft connection of air pump, and with the sliding assembly cooperation, sliding assembly includes fixed mounting and is in two horizontal poles on the diaphragm, slip setting are two slider and fixed mounting on the horizontal pole are in the limiting plate on the slider, just a spout has been seted up on the limiting plate, the dust absorption head is fixed in on the slider.

Furthermore, the runner assembly is including rotating to be installed two drive wheels, roll connection on the diaphragm are two the connecting piece and the fixed setting of drive wheel are in cylinder on the connecting piece, the cylinder stretch into to in the spout on the limiting plate and with limiting plate sliding connection, one of them the axis of rotation of drive wheel passes through bevel gear group and second drive belt with the drive shaft connection of air pump.

Furthermore, screw thread elevating system is including installing translation subassembly on the base and connection translation subassembly with two sets of extending structure of diaphragm, extending structure includes vertical fixed mounting and is in on the base and inside hollow riser and slip setting are in expansion plate in the riser, the expansion plate is kept away from the one end of base is with the lateral part of diaphragm is fixed.

Furthermore, the translation assembly comprises a screw rod rotatably mounted on the base, a guide rod fixedly mounted on the base and thread plates arranged on the guide rod and the screw rod, and the base is also provided with a first driving motor of which the output end is connected with the screw rod;

the threaded plate is in threaded connection with the lead screw and is in sliding connection with the guide rod, the threaded plate is connected with the telescopic plate through a push-pull plate, and two ends of the push-pull plate are respectively in rotating connection with the threaded plate and the telescopic plate.

Furthermore, the water pumping mechanism comprises a water pump arranged on the water tank and a third driving motor arranged on the side part of the water pump, and the output end of the third driving motor is connected with the driving shaft of the water pump;

the water inlet of the water pump is communicated with the water tank, the water outlet of the water pump is connected with a pipeline through a hose, the side part of the water tank is rotatably provided with a swinging plate, the pipeline is fixed on the swinging plate, and the sprinkler head is connected with one end, far away from the water outlet of the water pump, of the pipeline.

Furthermore, the swing mechanism comprises an electric push rod arranged on the side of the water tank, a rack plate fixed at the movable end of the electric push rod and a gear coaxially and fixedly arranged with the swing plate, and the gear is meshed with teeth on the rack plate.

Compared with the prior art, the invention has the beneficial effects that:

the device is at the during operation, dust absorption mechanism accessible dust absorption head absorbs the dust that is raised by the raise dust roller, and reciprocal actuating mechanism drive dust absorption head carries out reciprocal linear motion simultaneously, guarantee the effect of dust absorption scope, dust absorption mechanism absorbs the dust and handles in to the water tank, and spray mechanism sprays clean water to ground in with the water tank, and swing mechanism drive spray head carries out reciprocal swing one and promotes the comprehensive of watering, the effect of dust removal has further been promoted, owing to be to subaerial dust after absorption treatment, carry out the watering processing to ground again, so, just, make the functional of device strong, the dust removal effect is good, and is suitable for being generalized to use.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is an isometric view of the present invention.

Fig. 2 is a schematic diagram of the structure provided by the present invention.

Fig. 3 is a schematic view of another angle structure provided by the present invention.

Fig. 4 is a schematic structural view of another angle provided by the present invention.

Fig. 5 is an enlarged view of the structure at a in fig. 3 according to the present invention.

Fig. 6 is an enlarged view of the structure at B in fig. 4 according to the present invention.

Fig. 7 is an exploded view of the reciprocating drive mechanism provided by the present invention.

Reference numerals:

1. a base; 2. a transverse plate; 3. a water tank; 4. a dusting roller; 5. a vertical plate; 6. a retractable plate; 7. a screw rod; 8. a guide bar; 9. a thread plate; 10. a first drive motor; 11. a push-pull plate; 12. filtering the plate; 13. an air pump; 14. a second drive motor; 15. a first drive belt; 16. a second belt; 17. a bevel gear set; 18. A drive wheel; 19. a connecting member; 20. a cylinder; 21. a cross bar; 22. a slider; 23. a limiting plate; 24. A dust collection head; 25. a water pump; 26. a third drive motor; 27. a swing plate; 28. a sprinkler head; 29. a pipeline; 30. a gear; 31. a rack plate; 32. an electric push rod; 33. and (4) an air outlet head.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In order to effectively explain embodiments of the present invention, the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

The invention provides a tunnel construction dust remover, which aims to solve the problem of poor dust removal effect caused by single function of the existing dust removal equipment.

Referring to fig. 1 to 7, the tunnel construction dust remover includes a base 1 and a water tank 3 mounted on the base 1, wherein a transverse plate 2 is movably disposed at one end of the base 1 through a screw thread lifting mechanism, and the screw thread lifting mechanism is mounted on the base 1. Diaphragm 2 is last to rotate and is installed raise dust roller 4, be provided with the sheet rubber along circumference equidistance on raise dust roller 4's the outer wall, the sheet rubber is used for raise dust subaerial in the raise dust roller 4 rotation in-process.

In order to facilitate the movement of the device in the working process, a plurality of walking wheels are further arranged at the bottom of the base 1, a corresponding cab can be arranged on the base 1 in the actual dust removal work, and a worker can control the device in the cab.

Referring to fig. 3 again, the screw lifting mechanism includes a translation assembly mounted on the base 1 and two sets of telescopic structures connecting the translation assembly and the transverse plate 2, each telescopic structure includes a vertical plate 5 vertically and fixedly mounted on the base 1 and having a hollow interior and a telescopic plate 6 slidably disposed in the vertical plate 5, and one end of the telescopic plate 6 far away from the base 1 is fixed to a side portion of the transverse plate 2.

The translation assembly comprises a screw rod 7 rotatably mounted on the base 1, a guide rod 8 fixedly mounted on the base 1 and a thread plate 9 arranged on the guide rod 8 and the screw rod 7, and the base 1 is also provided with a first driving motor 10 of which the output end is connected with the screw rod 7;

the threaded plate 9 is in threaded connection with the lead screw 7 and is in sliding connection with the guide rod 8, the threaded plate 9 is connected with the telescopic plate 6 through a push-pull plate 11, and two ends of the push-pull plate 11 are respectively in rotating connection with the threaded plate 9 and the telescopic plate 6.

Specifically, the first driving motor 10 is a forward and reverse rotation motor, and a 4IK/80 yyyjt motor is adopted, which has stable performance, and other types of motors can be adopted as long as the driving requirement is met, which is not specifically limited in this application.

Further, the thread plate 9 is provided with two through holes for the screw rod 7 and the guide rod 8 to pass through respectively, and the inner wall of the through hole for the screw rod 7 to pass through is provided with a thread engaged with the screw rod 7.

When the screw rod 7 is driven to rotate forwards by the first driving motor 10, the threaded plate 9 is guided by the guide rod 8, so that the threaded plate 9 is in threaded fit with the screw rod 7, the threaded plate 9 moves towards the first driving motor 10, the telescopic plate 6 is driven by the push-pull plate 11 to slide towards the vertical plate 5, correspondingly, the height of the transverse plate 2 and the height of the dust raising roller 4 are reduced, otherwise, the height of the dust raising roller 4 is increased, therefore, effective adjustment of the height of the dust raising roller 4 is realized, the height of the dust raising roller 4 is ensured to be adjusted when the device starts to remove dust, rubber sheets on the dust raising roller are in contact with the ground and are bent, and dust on the ground can be raised normally by the dust raising roller 4 when the dust raising roller rotates.

And the rotating shaft of the dust raising roller 4 is connected with a dust collection mechanism arranged on the transverse plate 2. Still be provided with a dust absorption head 24 through reciprocal actuating mechanism activity on the diaphragm 2, dust absorption head 24 with dust absorption mechanism connects, be used for to by the dust that the sheet rubber was raised absorbs extremely in the water tank 3, just reciprocal actuating mechanism install in on the diaphragm 2 and connect dust absorption mechanism.

Referring to fig. 4 again, the dust suction mechanism includes an air pump 13 mounted on the horizontal plate 2 and a second driving motor 14 mounted at a side of the air pump 13, an output end of the second driving motor 14 is connected to a driving shaft of the air pump 13, and the driving shaft of the air pump 13 is connected to a rotating shaft of the dust roller 4 through a first driving belt 15. The filter plate 12 is fixedly arranged inside the water tank 3, an air outlet head 33 is further mounted at the upper portion of the water tank 3, the air outlet head 33 is connected with an air inlet of the air pump 13 through a hose, an air outlet of the air pump 13 is connected with the water tank 3 through a hose, and a driving shaft of the air pump 13 is further connected with the reciprocating driving mechanism.

When the dust collector is used, the thread lifting mechanism works, the driving transverse plate 2 and the dust raising roller 4 descend until rubber sheets on the dust raising roller 4 are in contact with the ground and are bent, then, the second driving motor 14 drives the air pump 13 to work, the driving shaft of the air pump 13 drives the dust raising roller 4 to rotate through the first driving belt 15, then, the rubber sheets on the dust raising roller 4 raise dust on the ground, the air pump 13 sucks the raised dust through the dust collecting head 24 at the air inlet of the air pump 13, and inputs the dust into the water tank 3 at the air outlet of the air pump, the dust removing treatment is carried out, the air with the dust removed is discharged through the air outlet head 33, meanwhile, the driving shaft of the air pump 13 also drives the reciprocating driving mechanism to move, the reciprocating driving mechanism drives the dust collecting head 24 to do reciprocating linear motion, and the dust collecting range is greatly improved.

It should be added that two sides of the base 1 and one end of the transverse plate 2 far away from the water tank 3 are respectively provided with a baffle (not numbered), and the arrangement of the baffles can effectively block the dust raised by the dust raising roller 4, so as to prevent the problem that the dust collection head 24 cannot completely collect dust due to the loss of the dust.

Referring to fig. 6 and 7 again, the reciprocating driving mechanism includes a rotating assembly and a sliding assembly mounted on the horizontal plate 2, the rotating assembly is connected with the driving shaft of the air pump 13 and is matched with the sliding assembly, the sliding assembly includes two cross rods 21 fixedly mounted on the horizontal plate 2, a sliding member 22 slidably disposed on the two cross rods 21, and a limiting plate 23 fixedly mounted on the sliding member 22, the limiting plate 23 is provided with a sliding slot, and the dust collection head 24 is fixed on the sliding member 22.

The runner assembly is installed including rotating two drive wheel 18, roll connection on the diaphragm 2 are two the connecting piece 19 and the fixed setting of drive wheel 18 are in cylinder 20 on the connecting piece 19, cylinder 20 stretch into to in the spout on the limiting plate 23 and with limiting plate 23 sliding connection, one of them the axis of rotation of drive wheel 18 pass through bevel gear set 17 and second drive belt 16 with the actuating shaft of air pump 13 is connected.

Further, the bevel gear set 17 includes a first bevel gear rotatably mounted on the horizontal plate 2 and a second bevel gear fixedly mounted coaxially with the driving wheel 18, the second bevel gear is engaged with the first bevel gear, and the second transmission belt 16 is used for connecting a driving shaft of the air pump 13 and a rotating shaft of the first bevel gear.

When the second driving motor 14 drives the air pump 13 to work, the driving shaft of the air pump 13 drives the driving wheel 18 to rotate through the second driving belt 16 and the bevel gear set 17, so that the connecting member 19 drives the cylinder 20 to move, the cylinder 20 is in sliding fit with the limiting plate 23, the limiting plate 23 drives the sliding member 22 to slide on the two cross rods 21 in a reciprocating manner, and then the dust collection head 24 makes reciprocating linear motion, so that the dust collection range is expanded.

The water tank 3 is provided with a water pumping mechanism, the water pumping mechanism is connected with a spraying head 28 for spraying water in the water tank 3 to the ground, and the spraying head 28 is connected with a swinging mechanism which is arranged on one side of the water tank 3 far away from the transverse plate 2.

Referring to fig. 2 again, the water pumping mechanism includes a water pump 25 mounted on the water tank 3 and a third driving motor 26 mounted on a side of the water pump 25, and an output end of the third driving motor 26 is connected to a driving shaft of the water pump 25. The water inlet of the water pump 25 is communicated with the water tank 3, the water outlet is connected with a pipeline 29 through a hose, the side part of the water tank 3 is rotatably provided with a swinging plate 27, the pipeline 29 is fixed on the swinging plate 27, and the sprinkler head 28 is connected with one end of the pipeline 29 far away from the water outlet of the water pump 25.

Referring to fig. 5 again, the swing mechanism includes a rack plate 31, which is mounted on a side portion of the water tank 3 and has an electric push rod 32 fixed to a movable end of the electric push rod 32, and a gear 30, which is coaxially and fixedly mounted with the swing plate 27, and the gear 30 is engaged with teeth on the rack plate 31.

When the device works, the third driving motor 26 drives the water pump 25 to work, the water pump 25 pumps water in the water tank 3 and sprays the water to the ground through the spraying head 28, meanwhile, the electric push rod 32 drives the rack plate 31 to do reciprocating linear motion, the gear 30 rotates in a reciprocating mode, the swinging plate 27 drives the pipeline 29 and the spraying head 28 to swing in a reciprocating mode, therefore, the range of spraying water to the ground is effectively enlarged, the dust removing effect is further improved, in addition, the filter plate 12 is arranged, the filtering effect is realized on particles in dust, and the cleanness of the water finally sprayed to the ground is guaranteed.

The working principle of the invention is as follows: when the device is used, when the first driving motor 10 drives the screw rod 7 to rotate in the forward direction, the guide rod 8 guides the threaded plate 9, so that the threaded plate 9 is in threaded fit with the screw rod 7, the threaded plate 9 moves towards the first driving motor 10, the telescopic plate 6 is driven by the push-pull plate 11 to slide towards the vertical plate 5, correspondingly, the height of the transverse plate 2 and the height of the dust raising roller 4 are reduced, and otherwise, the height of the dust raising roller 4 is increased, so that the height of the dust raising roller 4 is effectively adjusted, the height of the dust raising roller 4 is ensured to be adjusted when the device starts to remove dust, rubber sheets on the dust raising roller 4 are in contact with the ground and are bent, and dust on the ground can be raised normally when the dust raising roller 4 rotates;

when the second driving motor 14 drives the air pump 13 to work, the driving shaft of the air pump 13 drives the dust raising roller 4 to rotate through the first driving belt 15, so that dust on the ground is raised by the rubber sheet on the dust raising roller 4, the air pump 13 sucks the raised dust through the dust collecting head 24 at the air inlet of the air pump 13, and inputs the dust into the water tank 3 at the air outlet of the air pump, the dust removing treatment is performed, the air from which the dust is removed is discharged through the air outlet head 33, meanwhile, the driving shaft of the air pump 13 drives the driving wheel 18 to rotate through the second driving belt 16 and the bevel gear set 17, so that the connecting piece 19 drives the cylinder 20 to move, the cylinder 20 is in sliding fit with the limiting plate 23, the limiting plate 23 drives the sliding piece 22 to slide on the two cross rods 21 in a reciprocating manner, and further, the dust collecting head 24 makes a reciprocating linear movement, and the dust absorption range is expanded;

the third driving motor 26 drives the water pump 25 to work, the water pump 25 pumps out the water in the water tank 3 and sprays the water to the ground through the spraying head 28, meanwhile, the electric push rod 32 drives the rack plate 31 to do reciprocating linear motion, the gear 30 rotates in a reciprocating manner, the swinging plate 27 drives the pipeline 29 and the spraying head 28 to swing in a reciprocating manner, so that the water spraying range to the ground is effectively improved, the dust removal effect is further improved, the arrangement of the filter plate 12 plays a role in filtering particles in dust, and the cleanness of the water finally sprayed to the ground is ensured.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The tunnel construction dust remover is characterized by comprising a base (1) and a water tank (3) arranged on the base (1), wherein a transverse plate (2) is movably arranged at one end of the base (1) through a thread lifting mechanism, and the thread lifting mechanism is arranged on the base (1);

the dust collection device is characterized in that the transverse plate (2) is rotatably provided with a dust collection roller (4), rubber sheets are arranged on the outer wall of the dust collection roller (4) at equal intervals along the circumference, the rubber sheets are used for lifting dust on the ground in the rotating process of the dust collection roller (4), and the rotating shaft of the dust collection roller (4) is connected with a dust collection mechanism arranged on the transverse plate (2);

the transverse plate (2) is also movably provided with a dust collection head (24) through a reciprocating driving mechanism, the dust collection head (24) is connected with the dust collection mechanism and used for absorbing dust raised by the rubber sheet into the water tank (3), and the reciprocating driving mechanism is arranged on the transverse plate (2) and is connected with the dust collection mechanism;

install pump water mechanism on water tank (3), pump water mechanism be connected with be used for with water in water tank (3) sprinkles to spray head (28) on ground, just spray head (28) connect to be installed water tank (3) are kept away from the swing mechanism of diaphragm (2) one side.

2. The tunnel construction dust remover according to claim 1, wherein said dust suction mechanism comprises an air pump (13) mounted on said cross plate (2) and a second driving motor (14) mounted on the side of said air pump (13), the output end of said second driving motor (14) is connected with the driving shaft of said air pump (13), the driving shaft of said air pump (13) is connected with the rotating shaft of said dust roller (4) through a first transmission belt (15);

the inside of water tank (3) is fixed and is provided with filter plate (12), and its upper portion still installs one and goes out gas head (33), it passes through the hose connection to go out gas head (33) the air inlet of air pump (13), the gas outlet of air pump (13) passes through the hose connection water tank (3), just the drive shaft of air pump (13) still with reciprocating drive mechanism connects.

3. The tunnel construction dust collector of claim 2, wherein the reciprocating driving mechanism comprises a rotating assembly and a sliding assembly which are installed on the transverse plate (2), the rotating assembly is connected with the driving shaft of the air pump (13) and is matched with the sliding assembly, the sliding assembly comprises two cross rods (21) which are fixedly installed on the transverse plate (2), sliding pieces (22) which are arranged on the two cross rods (21) in a sliding manner, and a limiting plate (23) which is fixedly installed on the sliding pieces (22), the limiting plate (23) is provided with a sliding groove, and the dust collection head (24) is fixed on the sliding pieces (22).

4. The tunnel construction dust collector of claim 3, characterized in that the rotating assembly comprises two driving wheels (18) rotatably mounted on the transverse plate (2), a connecting member (19) for connecting the two driving wheels (18) in a rolling manner, and a cylinder (20) fixedly arranged on the connecting member (19), the cylinder (20) extends into a sliding groove on the limiting plate (23) and is connected with the limiting plate (23) in a sliding manner, and the rotating shaft of one of the driving wheels (18) is connected with the driving shaft of the air pump (13) through a bevel gear set (17) and a second driving belt (16).

5. The tunnel construction dust remover according to claim 1, characterized in that the screw thread lifting mechanism comprises a translation component mounted on the base (1) and two sets of telescopic structures connecting the translation component and the transverse plate (2), the telescopic structures comprise a vertical plate (5) which is vertically and fixedly mounted on the base (1) and is hollow inside and a telescopic plate (6) which is slidably arranged in the vertical plate (5), and one end of the telescopic plate (6) far away from the base (1) is fixed with the side part of the transverse plate (2).

6. The tunnel construction dust collector of claim 5, characterized in that, the translation assembly comprises a screw rod (7) rotatably mounted on the base (1), a guide rod (8) fixedly mounted on the base (1), and a thread plate (9) arranged on the guide rod (8) and the screw rod (7), the base (1) is further provided with a first driving motor (10) with an output end connected with the screw rod (7);

the threaded plate (9) is in threaded connection with the screw rod (7) and is in sliding connection with the guide rod (8), the threaded plate (9) is connected with the telescopic plate (6) through a push-pull plate (11), and two ends of the push-pull plate (11) are respectively in rotating connection with the threaded plate (9) and the telescopic plate (6).

7. The tunnel construction dust collector of claim 1, wherein the water pumping mechanism comprises a water pump (25) mounted on the water tank (3) and a third driving motor (26) mounted on the side of the water pump (25), and the output end of the third driving motor (26) is connected with the driving shaft of the water pump (25);

the water inlet of water pump (25) with water tank (3) intercommunication, delivery port have pipeline (29) through hose connection, the lateral part of water tank (3) is rotated and is installed swing board (27), pipeline (29) are fixed in on the swing board (27), just sprinkler head (28) with pipeline (29) are kept away from the one end of water pump (25) delivery port is connected.

8. The tunnel construction dust collector of claim 7, wherein the swing mechanism comprises a rack plate (31) fixed on the movable end of an electric push rod (32) installed on the side of the water tank (3) and a gear (30) fixed coaxially with the swing plate (27), and the gear (30) is engaged with teeth on the rack plate (31).