Ventilation device for diversion tunnel construction

Abstract

The ventilation device for diversion tunnel construction comprises a frame body and a ventilation pipe, a central cavity penetrating through the frame body is formed in the middle of the front face of the frame body, a fan is arranged in the central cavity, the inner wall of the front face and the inner wall of the back face of the central cavity are both in threaded connection with ring bodies, and a plurality of protection rods are arranged on the front faces of the ring bodies; flange plates are arranged at an inlet and an outlet of the ventilation pipe, a plurality of through holes are formed in the flange plates, a plurality of screw holes are formed in the positions, around the central cavity, of the front face and the back face of the frame body, and the through holes face the screw holes. According to the utility model, through the rollers, the single frame body is convenient to move; the ring body and the protection rod are mounted on the front surface and the back surface of the fan, so that the fan is protected, and a worker is prevented from touching the fan in the process of moving the frame body; the multiple frame bodies and the ventilation pipes can be freely spliced, the frame body at a certain position can face other directions, and therefore turning of the whole ventilation long pipeline can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of diversion tunnel construction, in particular to a ventilation device for diversion tunnel construction. Background Art

[0002] A diversion tunnel is a tunnel used for construction purposes. Tunnel diversion is primarily suitable for mountain rivers with narrow valleys and steep, rocky banks. A diversion tunnel is a temporary construction project, often requiring tight deadlines. Failure to meet deadlines can delay the entire project. During construction, the tunnel diverts the original river flow from the upstream cofferdam to the downstream cofferdam. Due to the depth of the diversion tunnel, oxygen is scarce deep within it. If construction workers remain deep within the tunnel for extended periods, this can lead to safety hazards such as hypoxia.

[0003] In view of the above situation, the present utility model is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a ventilation device for diversion tunnel construction, which is used to solve the problems mentioned in the background technology.

[0005] In order to solve the above technical problems, the present utility model provides the following technical solutions.

[0006] The utility model provides a ventilation device for diversion tunnel construction, comprising a frame and a ventilation pipe, wherein a central cavity penetrating the frame is provided in the middle of the front of the frame, a fan is provided in the central cavity, a ring body is threadedly connected to the front inner wall and the back inner wall of the central cavity, and a plurality of protective rods are provided on the front of the ring body;

[0007] The inlet and outlet of the ventilation pipe are both provided with flanges, and the flanges are provided with a plurality of through holes. The front and back sides of the frame are provided with a plurality of screw holes around the central cavity, and the through holes face the screw holes.

[0008] The bottom of the frame is provided with a plurality of rollers, the top surface of the frame is provided with a top handle, and two side handles are symmetrically provided on both sides of the flange;

[0009] The plurality of frames are arranged in a straight line with equal spacing, and the ventilation pipes are installed between two adjacent frames at intervals through flanges and bolts.

[0010] Preferably, there are four rollers, which are arranged in a cross shape on the lower surface of the frame, and the rollers are universal wheels.

[0011] Preferably, the plurality of through holes are evenly distributed on the surface of the flange at equal intervals, and the plurality of screw holes are evenly distributed on the front and back of the frame at equal intervals, and the number of the through holes is the same as the number of the screw holes.

[0012] Preferably, the outer diameter of the ring body is consistent with the inner diameter of the central cavity, and a plurality of the protection rods are evenly distributed around the front of the ring body at equal intervals.

[0013] Preferably, a bracket is horizontally provided in the middle of the inner wall of the central cavity, and the fan is installed at the center position of the bracket.

[0014] Preferably, a plurality of air outlet holes are arranged at equal intervals on the surface of the ventilation pipe, and valves are installed on the air outlet holes.

[0015] Preferably, the plurality of air outlet holes are arranged in a straight line.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] According to the depth of the diversion hole, an appropriate number of frames and ventilation pipes can be used. The through holes on the flange are aligned with the screw holes on the frames, and then bolts are screwed through the through holes into the screw holes. Multiple frames and ventilation pipes can be spliced ​​into a long whole. The farthest frame is located at the entrance of the diversion hole, and the nearest frame is located in the workers' working area inside the diversion hole.

[0018] The fans in the multiple frames are working, and the air outside the diversion hole can move in multiple ventilation ducts under the promotion of the fans. In this way, the air outside the diversion hole can reach the workers' working area inside the diversion hole, ensuring a high oxygen content in the working area;

[0019] Because there are multiple fans connected in a relay manner, the air in the ventilation duct can always maintain a certain flow rate; the four rollers provide good support for the frame, so that the fans can be placed relatively stably during operation; and the rollers also make it easier to move a single frame; the ring body and protective rod are installed on the front and back of the fan to protect the fan and prevent workers from touching the fan when moving the frame;

[0020] Multiple frames and ventilation pipes can be spliced ​​relatively freely, and the frames at a certain position can face other directions, so that the entire long ventilation duct can be turned. The entire device after splicing can be set along the direction of the diversion tunnel, which can effectively introduce the air at the entrance of the diversion tunnel into the deep inside of the diversion tunnel, ensuring the safety of workers during construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional diagram of the utility model after multiple frames and ventilation pipes are spliced ​​together;

[0022] Figure 2 This is a three-dimensional diagram of the flange and frame of the utility model;

[0023] Figure 3 This is a three-dimensional diagram of the frame and ring body of the utility model;

[0024] Figure 4 It is a three-dimensional diagram of the ring body of the utility model.

[0025] In the figure: 1. Frame; 11. Central cavity; 12. Screw hole; 13. Roller; 14. Fan; 15. Top handle; 16. Ring; 17. Protective rod; 2. Ventilation duct; 21. Flange; 22. Through hole; 23. Side handle. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0028] like Figure 1-4 As shown, a ventilation device for diversion tunnel construction includes a frame 1 and a ventilation pipe 2. A central cavity 11 is provided in the middle of the front of the frame 1 and penetrates the frame 1. The central cavity 11 is provided with a fan 14. When the fan 14 is working, air can flow. A ring body 16 is threadedly connected to the front inner wall and the back inner wall of the central cavity 11. A plurality of protective rods 17 are provided on the front of the ring body 16. That is, the ring body 16 can be detachably mounted at the front inlet and back outlet of the central cavity 11. The protective rods 17 shield and protect the fan 14 to prevent workers from touching the fan 17.

[0029] The inlet and outlet of the ventilation pipe 2 are both provided with flanges 21, and a plurality of through holes 22 are provided on the flanges 21. A plurality of screw holes 12 are provided on the front and back sides of the frame 1 around the central cavity 11. The through holes 22 face the screw holes 12. Practical bolts pass through the through holes 22 and are then screwed into the screw holes 12 to fix the flanges 21 to the front and back sides of the central cavity 11, thereby realizing the splicing of multiple frames 1 and ventilation pipes 2.

[0030] The bottom of the frame 1 is provided with a plurality of rollers 13, and the top surface of the frame 1 is provided with a top handle 15. Holding the top handle 15, the frame 1 can be moved more conveniently. Two side handles 23 are symmetrically provided on both sides of the flange 21. Holding the side handles 23 makes it easier to align the through hole 22 with the screw hole 12.

[0031] The multiple frames 1 are arranged in a straight line with equal spacing, and the ventilation pipes 2 are installed between two adjacent frames 1 at intervals through flanges 21 and bolts, thereby realizing the splicing of the multiple frames 1 and the ventilation pipes 2.

[0032] There are four rollers 13 , which are arranged in a cross shape on the lower surface of the frame 1 . The rollers 13 are universal wheels. The four rollers 13 provide good support for the entire frame 1 and are easy to move.

[0033] A plurality of through holes 22 are evenly distributed around the surface of the flange 21 at equal intervals, and a plurality of screw holes 12 are evenly distributed around the front and back of the frame 1 at equal intervals. The number of through holes 22 is the same as the number of screw holes 12.

[0034] The outer diameter of the ring body 16 is consistent with the inner diameter of the central cavity 11. Multiple protection rods 17 are evenly distributed around the front of the ring body 16 at equal intervals. The protection rods 17 shield the fan 14, and the wind generated by the fan 14 can pass through the protection rods 17 smoothly.

[0035] A bracket is horizontally provided in the middle of the inner wall of the central cavity 11 , and the fan 14 is installed at the center position of the bracket.

[0036] A plurality of air outlets are arranged at equal intervals on the surface of the ventilation pipe 2, and valves are installed on the air outlets. The valves at certain positions can be removed so that the air flow can be discharged from the air outlets when flowing in the ventilation pipe 2. When there are staff in multiple areas in the diversion tunnel, the valves of the air outlets in the area on the ventilation pipe 2 can be removed so that the wind in the ventilation pipe 2 can be discharged from the air outlets in the area.

[0037] The plurality of air outlet holes are arranged in a straight line.

[0038] In summary, according to the depth of the diversion hole, an appropriate number of frames 1 and ventilation pipes 2 can be used. The through holes 22 on the flange 21 are aligned with the screw holes 12 on the frame 1, and then bolts are passed through the through holes 22 and screwed into the screw holes 12. Multiple frames 1 and ventilation pipes 2 can be spliced ​​into a long whole. The farthest frame 1 is located at the entrance of the diversion hole, and the nearest frame 1 is located in the workers' working area inside the diversion hole.

[0039] The fans 14 in the multiple frames 1 are working, and the air outside the diversion hole can move in the multiple ventilation pipes 2 under the push of the fans 14, so that the air outside the diversion hole can reach the workers' working area inside the diversion hole, ensuring a high oxygen content in the working area;

[0040] Since there are multiple fans 14 connected in a relay manner, the air in the ventilation duct 2 can always maintain a certain flow rate; the four rollers 13 provide good support for the frame 1, so that the fans 14 can be placed more stably during operation; and the rollers 13 make it easier to move a single frame 1; the ring 16 and the protective rod 17 are installed on the front and back of the fan 14 to protect the fan 14 and prevent workers from touching the fan when moving the frame 1;

[0041] Multiple frames 1 and ventilation pipes 2 can be spliced ​​relatively freely, and the frame 1 at a certain position can face other directions, so that the entire long ventilation pipe can be turned. The entire device after splicing can be set along the direction of the diversion hole, which can effectively introduce the air at the entrance of the diversion hole into the deep inside of the diversion hole, ensuring the safety of workers during construction.

[0042] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A ventilation device for diversion tunnel construction, characterized by: The invention comprises a frame (1) and a ventilation pipe (2); a central cavity (11) penetrating the frame (1) is provided in the middle of the front face of the frame (1); a fan (14) is provided in the central cavity (11); a ring body (16) is threadedly connected to the front inner wall and the back inner wall of the central cavity (11); and a plurality of protective rods (17) are provided on the front face of the ring body (16); The inlet and outlet of the ventilation pipe (2) are both provided with flanges (21), and the flanges (21) are provided with a plurality of through holes (22). The front and back sides of the frame (1) are provided with a plurality of screw holes (12) around the central cavity (11), and the through holes (22) face the screw holes (12); The bottom of the frame (1) is provided with a plurality of rollers (13), the top surface of the frame (1) is provided with a top handle (15), and two side handles (23) are symmetrically provided on both sides of the flange (21); The plurality of frames (1) are arranged in a straight line at equal intervals, and the ventilation pipe (2) is installed between two adjacent frames (1) via flanges (21) and bolts.

2. A ventilation device for diversion tunnel construction according to claim 1, characterized in that: There are four rollers (13), which are arranged in a cross shape on the lower surface of the frame (1), and the rollers (13) are universal wheels.

3. A ventilation device for diversion tunnel construction according to claim 1, characterized in that: The plurality of through holes (22) are evenly distributed at equal intervals on the surface of the flange (21), and the plurality of screw holes (12) are evenly distributed at equal intervals on the front and back of the frame (1), and the number of the through holes (22) is the same as that of the screw holes (12).

4. A ventilation device for diversion tunnel construction according to claim 1, characterized in that: The outer diameter of the ring body (16) is consistent with the inner diameter of the central cavity (11), and a plurality of protection rods (17) are evenly distributed around the front of the ring body (16) at equal intervals.

5. A ventilation device for diversion tunnel construction according to claim 1, characterized in that: A bracket is horizontally arranged in the middle of the inner wall of the central cavity (11), and the fan (14) is installed at the center position of the bracket.

6. A ventilation device for diversion tunnel construction according to claim 1, characterized in that: The surface of the ventilation pipe (2) is provided with a plurality of air outlet holes at equal intervals, and valves are installed on the air outlet holes.

7. A ventilation device for diversion tunnel construction according to claim 6, characterized in that: The plurality of air outlet holes are arranged in a straight line.

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