CN219605319U - Ventilation unit is used in tunnel excavation - Google Patents

Abstract

The utility model relates to the technical field of tunnel construction and discloses a ventilation device for tunnel excavation. Through setting up the height of four electronic jars convenient regulation ventilation unit bodies, through setting up the motor, the starter motor drives the pivot and rotates, the pivot rotates and makes the fan rotate, thereby conveniently ventilate the tunnel, through setting up dustproof filter plate, can avoid the dust in the tunnel to get into this internal life effect that influences the fan of ventilation unit, through setting up two belt pulley cooperation belt drive, it rotates to drive the transfer line when the pivot rotates, through setting up two bevel gear drive, the transfer line rotates and drives reciprocating screw and rotate, thereby make reciprocating screw slider be vertical reciprocating motion along reciprocating screw, thereby drive the cleaning brush board and brush about the surface to dustproof filter plate and clean, avoid the dust to pile up influence ventilation effect on dustproof filter plate.

Description

Ventilation unit is used in tunnel excavation

Technical Field

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

Background

The ventilation is a building environment control technology for controlling the propagation and hazard of air pollutants by means of ventilation dilution or ventilation elimination and the like, and realizing the quality guarantee of indoor and outdoor air environments, and the ventilation system is a whole set of device comprising an air inlet, an air outlet, an air supply pipeline, a fan, a cooling and heating device, a filter, a control system and other accessory equipment, wherein in order to ensure the quality of air in a tunnel and the safety of workers in the tunnel excavation process, the ventilation device is often required to be used, so that the ventilation of the air in the tunnel is ensured.

The publication number is: the utility model discloses a ventilation unit is used in tunnel excavation in CN207686751U installs comparatively fast, can carry out quick nimble installation and arranging according to the progress of construction, and have stronger ventilation effect, can dry the inside air of the device, increase the life of the device, place the tunnel mouth with first exhaust fan when using the device, and the progress that the second exhaust fan excavated along with the tunnel is placed in suitable position, and the rubber hose receive and releases along with the carousel, so that the device reaches the effect of quick receipts and releases, the upper end of support column is rotated with the bottom of ventilation duct through the pivot and is connected, the support column mainly supports ventilation duct, the one end of telescopic link is articulated with the upside of base case through the hinge, and the other end of telescopic link is articulated with ventilation duct's bottom surface, ventilation duct is rotated with the flexible of telescopic link and the rotation between telescopic link and the hinge messenger ventilation duct, and the pivot of support column can be rotated smoothly messenger ventilation duct, thereby make the direction of ventilation duct change, the fan utilizes the heating wire leaf to dry the air at pivoted in-process, prevent that the inside of the device from entering into the inside of the device is excessively damaged to the inside of the moisture, prevent that the inside of the device from excessively long time from being damaged.

However, this prior art blocks dust in the tunnel through filter screen and isolation net, but in long-term use, dust is liable to accumulate on the filter screen to influence ventilation effect.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a ventilation device for tunnel excavation. The dustproof ventilating device has the advantages that dust accumulated on the surface of the dustproof filter plate is wiped while the dust is prevented from entering the ventilating device body by the dustproof ventilating mechanism.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a ventilation unit for tunnel excavation, includes the base, the top of base is the opening setting, the top of base is provided with the backup pad, the top fixed mounting of backup pad has four electronic jars, four the flexible end fixedly connected with ventilation unit body of electronic jar, the inside of ventilation unit body is provided with dustproof ventilation mechanism, the inside of base is provided with damper, dustproof ventilation mechanism includes: the fan is fixedly sleeved on the outer wall of the rotating shaft, a dustproof filter plate is fixedly installed at the air outlet of the ventilation device body, and an anti-blocking cleaning assembly is further arranged on the ventilation device body.

Preferably, the anti-clogging cleaning assembly comprises: the extension board, extension board fixed mounting is on the top outer wall of ventilation unit body, be connected with the transfer line through the bearing rotation on the extension board, fixed cover is equipped with the belt pulley on the outer wall of pivot and transfer line respectively, two the belt pulley passes through belt transmission and connects, the top fixedly connected with L shape backup pad of ventilation unit body, be connected with reciprocating screw through the bearing rotation in the L shape backup pad, reciprocating screw surface smoothness department is equipped with bevel gear, two on the outer wall of transfer line respectively the cover bevel gear intermeshing connects, reciprocating screw's surface screw thread department threaded connection has reciprocating screw slider, one side fixedly connected with cleaning brush board of reciprocating screw slider, cleaning brush board is laminated with the surface of dustproof filter plate mutually.

Preferably, two limiting rods are fixedly connected to the L-shaped supporting plate, and the reciprocating screw rod sliding blocks are respectively and slidably connected with the two limiting rods.

Preferably, the bottom of the reciprocating screw rod is connected with a limiting plate through a bearing, and one ends of the two limiting rods, which are far away from the L-shaped supporting plate, are fixedly connected with the limiting plate respectively.

Preferably, the damping mechanism includes: the four dampers are fixedly connected with the bottom inner wall of the base and the bottom outer wall of the supporting plate respectively at two ends of the four dampers, a first damping spring is sleeved on the outer wall of the damper respectively, and two ends of the first damping spring are fixedly connected with the bottom inner wall of the base and the bottom outer wall of the supporting plate respectively.

Preferably, two recesses have been seted up at the base top, the inside of two recesses is fixedly connected with slide bar respectively, two respectively sliding connection has two sliders on the outer wall of slide bar, two respectively the cover is equipped with two damping spring No. two on the outer wall of slide bar, four respectively with four sliders and the both sides cell wall fixed connection of two recesses, four the top of slider is articulated respectively to be connected with the connecting rod, and the one end that four sliders were kept away from to four connecting rods is articulated respectively to be connected in the bottom of backup pad.

(III) beneficial effects

Compared with the prior art, the utility model provides the ventilation device for tunnel excavation, which has the following beneficial effects:

1. this ventilation unit for tunnel excavation, through setting up the height of four electronic jars convenient regulation ventilation unit bodies, through setting up the motor, the starter motor drives the pivot and rotates, the pivot rotates and makes the fan rotate, thereby conveniently ventilate the tunnel, through setting up dustproof filter plate, can avoid the dust in the tunnel to get into this internal life effect that influences the fan of ventilation unit, through setting up two belt pulley cooperation belt drive, drive the transfer line rotation when the pivot rotates, through setting up two bevel gear drive, the transfer line rotates and drives reciprocating screw and rotate, thereby make reciprocating screw slider be vertical reciprocating motion along reciprocating screw, thereby drive the surface of cleaning brush board and brush about and clean dustproof filter plate, avoid the dust to pile up on dustproof filter plate and influence ventilation effect, can play spacing effect to reciprocating screw slider through setting up two gag lever post cooperation limiting plates, thereby promote cleaning brush board stability.

2. This ventilation unit for tunnel excavation through setting up four damping springs, utilizes four damping springs's elasticity can play absorbing effect to the backup pad, through setting up four sliders of two slide bars cooperation, promotes four sliders and slides respectively on two slide bars and extrudees four damping springs No. two when the backup pad atress, and then utilizes four damping springs's elasticity to further reduce the power that the backup pad received to play better protection effect to the ventilation unit body.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a front view of the present utility model;

FIG. 2 is a schematic view of a dustproof ventilation mechanism according to the present utility model;

FIG. 3 is a top view of the present utility model;

fig. 4 is a schematic structural view of the shock absorbing mechanism of the present utility model.

In the figure: 1. a base; 2. a support plate; 3. an electric cylinder; 4. a ventilation device body; 5. a dustproof ventilation mechanism; 51. a support column; 52. a motor; 53. a rotating shaft; 54. a fan; 55. a dust-proof filter plate; 56. an anti-clogging cleaning assembly; 561. an extension plate; 562. a transmission rod; 563. a belt pulley; 564. an L-shaped support plate; 565. a reciprocating screw rod; 566. bevel gears; 567. a reciprocating screw rod sliding block; 568. cleaning a brush plate; 57. a limit rod; 58. a limiting plate; 6. a damping mechanism; 61. a damper; 62. a first damping spring; 63. a slide bar; 64. a slide block; 65. a second damping spring; 66. and (5) connecting a rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Example 1

As shown in fig. 1-4, the utility model provides a ventilation device for tunnel excavation, which comprises a base 1, wherein the top of the base 1 is provided with an opening, the top of the base 1 is provided with a supporting plate 2, the top of the supporting plate 2 is fixedly provided with four electric cylinders 3, the telescopic ends of the four electric cylinders 3 are fixedly connected with a ventilation device body 4, the inside of the ventilation device body 4 is provided with a dustproof ventilation mechanism 5, the inside of the base 1 is provided with a damping mechanism 6, and the dustproof ventilation mechanism 5 comprises: two support columns 51 are respectively fixedly connected on the inner wall of the ventilation device body 4, one end fixedly connected with motor 52 of ventilation device body 4 is kept away from to two support columns 51, the output of motor 52 passes through shaft coupling fixedly connected with pivot 53, fixed cover is equipped with fan 54 on the outer wall of pivot 53, air outlet department fixed mounting of ventilation device body 4 has dustproof filter plate 55, still be provided with on the ventilation device body 4 and prevent blockking up clean subassembly 56, prevent blockking up clean subassembly 56 includes: extension board 561 fixed mounting is on the top outer wall of ventilation unit body 4, be connected with drive rod 562 through the bearing rotation on the extension board 561, fixed cover is equipped with belt pulley 563 on the outer wall of pivot 53 and drive rod 562 respectively, two belt pulleys 563 pass through belt drive connection, the top fixedly connected with L shape backup pad 564 of ventilation unit body 4, be connected with reciprocating screw 565 through the bearing rotation on the L shape backup pad 564, reciprocating screw 565 surface smoothness department is equipped with bevel gear 566 with the outer wall of drive rod 562 respectively in the cover, two bevel gears 566 intermeshing connects, reciprocating screw 565 surface screw thread department threaded connection has reciprocating screw slider 567, one side fixedly connected with cleaning brush board 568 of reciprocating screw slider 567, cleaning brush board 568 laminating with the surface of dustproof filter plate 55, fixedly connected with two gag lever posts 57 on the L shape backup pad 564, reciprocating screw slider 567 is connected with two gag lever posts 57 sliding connection respectively, the bottom of reciprocating screw 565 is connected with gag lever 58 through the bearing, two one end that the L shape backup pad 564 was kept away from respectively with gag lever post 58 fixed connection.

In this embodiment, through setting up the height of four electric cylinders 3 convenient regulation ventilation unit body 4, through setting up motor 52, starter motor 52 drives pivot 53 rotation, pivot 53 rotates and makes fan 54 rotate, thereby conveniently ventilate the tunnel, through setting up dustproof filter plate 55, can avoid the dust in the tunnel to get into ventilation unit body 4 in and influence the life effect of fan 54, through setting up two belt pulleys 563 cooperation belt drive, drive the transfer line 562 and rotate when pivot 53 rotates, drive the transmission line 562 through setting up two bevel gears 566 transmission, the transfer line 562 rotates and drives reciprocating screw 565 rotation, thereby make reciprocating screw slider 567 make vertical reciprocating motion along reciprocating screw 565, thereby drive cleaning brush board 568 brush about clean the surface of dustproof filter plate 55, avoid the dust to pile up on dustproof filter plate 55 and influence ventilation effect, can play spacing effect to reciprocating screw slider 567 through setting up two gag lever 57 cooperation limiting plate 58, thereby promote cleaning brush board 568 stability.

Example 2

As shown in fig. 1-4, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, the damper mechanism 6 includes: the both ends of four dampers 61 respectively with the bottom inner wall of base 1 and the bottom outer wall fixed connection of backup pad 2, the cover is equipped with damping spring 62 No. one on the outer wall of four dampers 61 respectively, the both ends of four damping springs 62 respectively with the bottom inner wall of base 1 and the bottom outer wall fixed connection of backup pad 2, two recesses have been seted up at base 1 top, the inside fixedly connected with slide bar 63 respectively of two recesses, sliding connection has two sliders 64 respectively on the outer wall of two slide bars 63, the cover is equipped with two damping springs 65 respectively on the outer wall of two slide bars 63, the both ends of four damping springs 65 respectively with the both sides cell wall fixed connection of four sliders 64 and two recesses, the top of four sliders 64 is articulated respectively to be connected with connecting rod 66, the one end that four connecting rods 66 kept away from four sliders 64 articulates respectively and connects in the bottom of backup pad 2.

In this embodiment, through setting up four dampers 61 and cooperating four damping springs 62, utilize four damping springs 62's elasticity can play absorbing effect to backup pad 2, through setting up two slide bars 63 and cooperating four sliders 64, promote four sliders 64 respectively on two slide bars 63 and extrude four damping springs 65 No. two when backup pad 2 atress, and then utilize four damping springs 65's elasticity to further reduce the power that backup pad 2 received, thereby play better protection effect to ventilation unit body 4.

The working principle of the ventilation device for tunnel excavation is specifically described below.

As shown in fig. 1-4, during the use, through setting up the height of four electronic jars 3 convenient regulation ventilation unit body 4, through setting up motor 52, starter motor 52 drives pivot 53 rotation, the pivot 53 rotates and makes fan 54 rotate, thereby conveniently ventilate the tunnel, through setting up dustproof filter plate 55, can avoid dust in the tunnel to get into ventilation unit body 4 in and influence the life effect of fan 54, through setting up two belt pulleys 563 cooperation belt drive, drive the transfer line 562 and rotate when pivot 53 rotates, through setting up two bevel gears 566 transmission, the transfer line rotates and drives reciprocating screw 565 rotation, thereby make reciprocating screw slider 567 make vertical reciprocating screw 565 do vertical reciprocating motion, thereby drive cleaning brush board 568 brush about to clean the surface of dustproof filter plate 55, avoid the dust to pile up on dustproof filter plate 55 and influence ventilation effect, can play spacing effect to reciprocating screw slider 567 through setting up two gag lever post 57, thereby promote cleaning brush plate 568 stability, through setting up four damper 61 cooperation four first damping springs 62, utilize four spring 62 to push away from the backup pad 2 when the elastic force of one damping spring 62 can be used to push down two backup pads 63 through two sliding bar 63, thereby the damping spring 2 is better in order to reduce the effect of two damping spring 65 and is pressed by two backup pad 2, and more damping spring 65 is better to be used for the impact on the two backup pad 64.

Claims (6)

1. Ventilation unit is used in tunnel excavation, including base (1), its characterized in that: the top of base (1) is the opening setting, the top of base (1) is provided with backup pad (2), the top fixed mounting of backup pad (2) has four electronic jar (3), four the flexible end fixedly connected with ventilation unit body (4) of electronic jar (3), the inside of ventilation unit body (4) is provided with dustproof ventilation mechanism (5), the inside of base (1) is provided with damper (6), dustproof ventilation mechanism (5) include: two support columns (51), two support column (51) are respectively fixed connection on the inner wall of ventilation unit body (4), two the one end fixedly connected with motor (52) of ventilation unit body (4) are kept away from to support column (51), the output of motor (52) is through shaft coupling fixedly connected with pivot (53), fixed cover is equipped with fan (54) on the outer wall of pivot (53), the air outlet department fixed mounting of ventilation unit body (4) has dustproof filter plate (55), still be provided with on the ventilation unit body (4) and prevent blockking up clean subassembly (56).

2. The ventilation device for tunnel excavation according to claim 1, wherein: the anti-clogging cleaning assembly (56) comprises: extension board (561), extension board (561) fixed mounting is on the top outer wall of ventilation unit body (4), be connected with transfer line (562) through the bearing rotation on extension board (561), fixed cover is equipped with belt pulley (563) respectively on the outer wall of pivot (53) and transfer line (562), two belt pulley (563) are connected through belt transmission, the top fixedly connected with L shape backup pad (564) of ventilation unit body (4), be connected with reciprocating screw (565) through the bearing rotation on L shape backup pad (564), reciprocating screw (565) surface smoothness department is equipped with bevel gear (566) with the outer wall of transfer line (562) cover respectively, two bevel gear (566) intermeshing connects, the surperficial screw thread department threaded connection of reciprocating screw (565) has reciprocating screw slider (567), one side fixedly connected with cleaning brush board (568) of reciprocating screw slider (567), cleaning brush board (568) laminating mutually with the surface of dustproof filter plate (55).

3. A ventilation device for tunnel excavation according to claim 2, characterized in that: two limiting rods (57) are fixedly connected to the L-shaped supporting plate (564), and the reciprocating screw rod sliding blocks (567) are respectively and slidably connected with the two limiting rods (57).

4. A ventilation device for tunnel excavation according to claim 3, wherein: the bottom of the reciprocating screw rod (565) is connected with a limiting plate (58) through a bearing, and one ends of the two limiting rods (57) far away from the L-shaped supporting plate (564) are fixedly connected with the limiting plate (58) respectively.

5. The ventilation device for tunnel excavation according to claim 1, wherein: the damper mechanism (6) includes: the four dampers (61), four both ends of damper (61) respectively with the bottom inner wall of base (1) and the bottom outer wall fixed connection of backup pad (2), four cover respectively on the outer wall of damper (61) is equipped with damping spring (62), four the both ends of damping spring (62) respectively with the bottom inner wall of base (1) and the bottom outer wall fixed connection of backup pad (2).

6. The ventilation device for tunnel excavation according to claim 5, wherein: two recesses have been seted up at base (1) top, and the inside of two recesses is fixedly connected with slide bar (63) respectively, two respectively sliding connection has two sliders (64) on the outer wall of slide bar (63), two cover respectively on the outer wall of slide bar (63) is equipped with two damping spring (65) No. two, four damping spring (65) both ends respectively with four sliders (64) and the both sides cell wall fixed connection of two recesses, four the top of slider (64) is articulated respectively to be connected with connecting rod (66), and the one end that four sliders (64) were kept away from to four connecting rods (66) is articulated respectively to be connected in the bottom of backup pad (2).