A ventilation device for railway construction in tunnel

Abstract

The utility model discloses a ventilation device for railway construction in a tunnel, comprising a ventilation duct, a plurality of fans installed in the ventilation duct, a multi-stage filtering mechanism installed in the ventilation duct, and a plurality of cleaning mechanisms installed in the ventilation duct; the multi-stage filtering mechanism comprises an annular filter screen and a driving frame; the cleaning mechanism comprises a protective box, an inlet and an outlet, and a cleaning frame. The beneficial effect of the utility model is that by setting a plurality of filter screens with different mesh sizes, the number of impurities accumulated on the plurality of filter screens can be made roughly the same, the number of times the filter screens are cleaned can be reduced, and the service life of the filter screen can be extended; the impurities on the filter screen can be cleaned by the cleaning frame, and the filter screen does not need to be disassembled, which is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of railway construction equipment, and more specifically to a ventilation device used for railway construction in a tunnel. Background Art

[0002] Construction ventilation is one of the important processes in tunnel construction. Fans with matching power are installed at the tunnel entrance and at appropriate locations outside the tunnel to transport fresh air from outside the tunnel to various construction locations, and the dirty air in the tunnel is discharged out of the tunnel to improve the construction working environment in the tunnel. For tunnels, solving the ventilation problem is the basis and guarantee for improving the construction working environment and improving construction efficiency.

[0003] In the prior art, when air is supplied through a pipe, since the air contains a large amount of dust, the dust needs to be filtered through a filter. After a period of time, the filter needs to be removed and cleaned. Since the pipe is long, the filter close to the air inlet end needs to be cleaned much more often than the filter far from the air inlet end. In addition, the removal of the filter is time-consuming and labor-intensive, and cleaning is inconvenient.

[0004] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Utility Model Content

[0005] The utility model aims to solve the above problems and designs a ventilation device for railway construction in tunnels.

[0006] To achieve the above-mentioned purpose, the technical solution of the utility model is a ventilation device for railway construction in a tunnel, comprising a ventilation duct, a plurality of fans are installed in the ventilation duct, a multi-stage filtering mechanism is installed in the ventilation duct, and a plurality of cleaning mechanisms are installed in the ventilation duct;

[0007] The multi-stage filtering mechanism comprises a plurality of annular filter screens located in the ventilation duct, the meshes of the plurality of annular filter screens are gradually reduced, a driving frame is installed in the annular filter screen, and the driving frame can drive the annular filter screen to rotate;

[0008] The cleaning mechanism includes a protection box installed at the lower end of the ventilation duct, and the upper end of the protection box is provided with inlets and outlets on both sides, and the annular filter can pass through the inlets and outlets. The lower end of the driving frame is installed in the protection box, and a cleaning frame is installed in the protection box, and the cleaning frame can clean impurities on the annular filter.

[0009] Furthermore, the driving frame includes rotating rollers located at the upper and lower ends of the annular filter screen, both ends of the upper rotating roller are installed in the ventilation duct, and both ends of the lower rotating roller are installed in a protective box. A first gear is installed on the lower rotating roller, and a rotating motor is installed on one side of the protective box. A second gear is installed on the rotating end of the rotating motor, and the first gear and the second gear are meshed.

[0010] Furthermore, a square frame installed in the ventilation duct is provided on the front side of the annular filter screen, and a limiting slide is installed on the rear surface of the square frame, and the annular filter screen can pass through the limiting slide.

[0011] Furthermore, the cleaning frame includes a cleaning roller located on one side of the lower rotating roller, both ends of the cleaning roller are installed in a protective box, a plurality of cleaning brushes are installed on the outside of the cleaning roller, a third gear is installed at one end of the cleaning roller, and the third gear is meshed with the first gear.

[0012] Furthermore, a cleaning port is provided on one side of the protection box, and a lifting and lowering door installed on the ventilation duct is provided on one side of the cleaning port.

[0013] The beneficial effects of the utility model are as follows: by setting a plurality of filter screens with different mesh sizes, the amount of impurities accumulated on the plurality of filter screens can be made roughly the same, the cleaning times of the filter screens can be reduced, and the service life of the filter screens can be extended; the impurities on the filter screens can be cleaned by the cleaning rack without disassembling the filter screens, and the use is more convenient;

[0014] The annular filter is driven to move by the driving frame, so that impurities in the air can be intercepted when the annular filter is cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a ventilation device used for railway construction in a tunnel according to the utility model;

[0016] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0017] Figure 3 It is a partial cross-sectional view of a ventilation device used for railway construction in a tunnel according to the utility model, viewed from above;

[0018] In the figure, 1. ventilation duct; 2. fan; 3. annular filter; 4. drive frame; 5. protection box; 6. inlet and outlet; 7. cleaning frame; 8. rotating roller; 9. first gear; 10. rotating motor; 11. second gear; 12. square frame; 13. limiting slide; 14. cleaning roller; 15. cleaning brush; 16. third gear; 17. cleaning port; 18. lifting door. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0021] The utility model provides Figure 1-3 A ventilation device for railway construction in a tunnel is shown, comprising a ventilation duct 1, a plurality of fans 2 are installed in the ventilation duct 1, a multi-stage filtering mechanism is installed in the ventilation duct 1, and a plurality of cleaning mechanisms are installed in the ventilation duct 1; the multi-stage filtering mechanism comprises a plurality of annular filter screens 3 located in the ventilation duct 1, the meshes of the plurality of annular filter screens 3 are gradually reduced, a driving frame 4 is installed in the annular filter screens 3, and the driving frame 4 can drive the annular filter screens 3 to rotate; the cleaning mechanism comprises a protection box 5 installed at the lower end of the ventilation duct 1, an inlet and outlet 6 are opened on both sides of the upper end of the protection box 5, the annular filter screen 3 can pass through the inlet and outlet 6, the lower end of the driving frame 4 is installed in the protection box 5, a cleaning frame 7 is installed in the protection box 5, and the cleaning frame 7 can clean impurities on the annular filter screen 3;

[0022] The process of ventilation in the tunnel by this device is as follows: the outside air is extracted through multiple fans 2 and discharged into the tunnel through the ventilation duct 1, so that the tunnel can be ventilated, and impurities in the air can be cleaned through multiple annular filters 3, and the mesh size of the multiple annular filters 3 is gradually reduced, so that each annular filter 3 can intercept impurities of different sizes, and after a part of impurities are accumulated on the annular filter 3, the annular filter 3 is driven to rotate by the driving frame 4, and the part of the annular filter 3 with impurities can be rotated into the protective box 5, and the part of the annular filter 3 without impurities can be rotated into the ventilation duct 1 to continue to intercept impurities, and the impurities on the annular filter 3 inside the protective box 5 can be cleaned by the cleaning frame 7, so that the annular filter 3 can be recycled.

[0023] Refer to the instruction manual Figure 1 , Instruction Manual Figure 2 And the instruction manual Figure 3 The driving frame 4 includes rotating rollers 8 located at the upper and lower ends of the annular filter screen 3, both ends of the upper rotating roller 8 are installed in the ventilation duct 1, and both ends of the lower rotating roller 8 are installed in the protection box 5. A first gear 9 is installed on the lower rotating roller 8, and a rotating motor 10 is installed on one side of the protection box 5. A second gear 11 is installed on the rotating end of the rotating motor 10, and the first gear 9 and the second gear 11 are meshed;

[0024] The process of the driving frame 4 driving the annular filter screen 3 to rotate is as follows: the annular filter screen 3 can be tightened by two rotating rollers 8, and the rotating motor 10 is started to rotate. The rotating motor 10 can drive the second gear 11 to rotate. The second gear 11 is meshed with the first gear 9, which can drive the first gear 9 and the rotating roller 8 at the lower end to rotate. The two rotating rollers 8 are connected through the annular filter screen 3, so that the two rotating rollers 8 can rotate and drive the annular filter screen 3 to rotate.

[0025] Refer to the instruction manual Figure 1 And the instruction manual Figure 2 A square frame 12 installed in the ventilation duct 1 is provided on the front side of the annular filter screen 3, and a limiting slide 13 is installed on the rear surface of the square frame 12. The annular filter screen 3 can pass through the limiting slide 13. The square frame 12 can gather the wind in the ventilation duct 1 onto the annular filter screen 3, which can facilitate the interception of impurities. The limiting slide 13 can limit the annular filter screen 3.

[0026] Refer to the instruction manual Figure 1 , Instruction Manual Figure 2 And the instruction manual Figure 3The cleaning frame 7 includes a cleaning roller 14 located on one side of the lower rotating roller 8, both ends of the cleaning roller 14 are installed in the protective box 5, a plurality of cleaning brushes 15 are installed on the outer side of the cleaning roller 14, and a third gear 16 is installed at one end of the cleaning roller 14, and the third gear 16 is meshed with the first gear 9;

[0027] The process of cleaning the annular filter screen 3 by the cleaning frame 7 is as follows: when the rotating roller 8 at the lower end rotates, the first gear 9 can be driven to rotate, and the first gear 9 and the third gear 16 are meshed, which can drive the third gear 16 and the cleaning roller 14 to rotate, and the flexible brush 15 on the cleaning roller 14 can clean the impurities on the annular filter screen 3.

[0028] Refer to the instruction manual Figure 3 A cleaning port 17 is provided on one side of the protection box 5, and a lifting door 18 installed on the ventilation duct 1 is provided on one side of the cleaning port 17. The impurities cleaned by the cleaning frame 7 can fall into the lower end of the protection box 5. The lifting door 18 is opened and the impurities can be taken out through the cleaning port 17.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A ventilation device for railway construction in a tunnel, comprising a ventilation duct (1), wherein a plurality of fans (2) are installed in the ventilation duct (1), characterized in that: A multi-stage filtering mechanism is installed in the ventilation duct (1), and a plurality of cleaning mechanisms are installed in the ventilation duct (1); The multi-stage filtering mechanism comprises a plurality of annular filter screens (3) located in the ventilation duct (1), the mesh size of the plurality of annular filter screens (3) being gradually reduced, a driving frame (4) being installed in the annular filter screen (3), and the driving frame (4) being capable of driving the annular filter screen (3) to rotate; The cleaning mechanism comprises a protection box (5) installed at the lower end of the ventilation duct (1), the protection box (5) having inlets and outlets (6) on both sides of the upper end, the annular filter screen (3) being able to pass through the inlets and outlets (6), the lower end of the drive frame (4) being installed in the protection box (5), the protection box (5) having a cleaning frame (7) installed therein, the cleaning frame (7) being able to clean impurities on the annular filter screen (3).

2. A ventilation device for railway construction in a tunnel according to claim 1, characterized in that: The driving frame (4) comprises rotating rollers (8) located at the upper and lower ends of the annular filter screen (3), the two ends of the upper rotating roller (8) being mounted in the ventilation duct (1), and the two ends of the lower rotating roller (8) being mounted in the protection box (5), a first gear (9) being mounted on the lower rotating roller (8), a rotating motor (10) being mounted on one side of the protection box (5), a second gear (11) being mounted on the rotating end of the rotating motor (10), and the first gear (9) and the second gear (11) being meshed.

3. A ventilation device for railway construction in a tunnel according to claim 2, characterized in that: A square frame (12) installed in the ventilation duct (1) is provided on the front side of the annular filter screen (3), and a limiting slideway (13) is installed on the rear surface of the square frame (12), and the annular filter screen (3) can pass through the limiting slideway (13).

4. A ventilation device for railway construction in a tunnel according to claim 2, characterized in that: The cleaning frame (7) comprises a cleaning roller (14) located on one side of the lower rotating roller (8), both ends of the cleaning roller (14) are mounted in the protective box (5), a plurality of cleaning brushes (15) are mounted on the outside of the cleaning roller (14), and a third gear (16) is mounted on one end of the cleaning roller (14), the third gear (16) being meshed with the first gear (9).

5. A ventilation device for railway construction in a tunnel according to claim 1, characterized in that: A cleaning port (17) is provided on one side of the protection box (5), and a lifting and lowering door (18) installed on the ventilation duct (1) is provided on one side of the cleaning port (17).

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