Firm and reliable underground air quantity adjusting air door

Abstract

The utility model belongs to the technical field of mine ventilation, and particularly discloses a firm and reliable underground air quantity adjusting air door. The wall body of the air door is a wall transversely arranged in a roadway and is provided with a door opening, the sliding door is arranged on the wall body to open and close the door opening, and the rolling devices are arranged at the bottom and the top of the sliding door; a plurality of fixing piles consistent with the sliding direction of the sliding door are fixed above and below the door opening respectively, middle connecting pieces of the fixing piles are vertically fixed in the wall, baffles are exposed out of the surface of the wall, guide grooves are formed above and below the same face of the door opening respectively, and the guide grooves are fixedly connected with the baffles in the extending direction in sequence. The fixing piles are built on the wall, the guide grooves are fixedly connected with the baffles, exposed out of the wall, of the fixing piles in sequence, construction is convenient and fast, the guide grooves are firmly and reliably connected with the wall, the overall strength of the wall cannot be affected, and the fixing structure has the advantages of being simple in structure, convenient and fast to construct, economical, practical, firm and reliable.

Description

Technical Field

[0001] The utility model belongs to the technical field of mine ventilation, and in particular relates to an underground air volume regulating damper which has the advantages of simple structure, convenient construction, economy, practicality, firmness and reliability. Background Art

[0002] The underground ventilation system is one of the important equipment for safe production in mines. It is mainly used to discharge toxic and harmful gases and waste gases underground, replenish fresh oxygen, and control the temperature, humidity, oxygen content and other indicators underground to ensure the safety of miners. In the underground ventilation system, the underground damper is used to control the blowing direction of the air duct and control the air flow to achieve the expected air volume distribution to achieve effective ventilation in the mine. If the underground damper is not set up to the standard, it will cause turbulence in the mine air flow and insufficient air volume at the mining face. In severe cases, it may cause serious accidents such as abnormal gas outburst, threatening the safety of underground construction.

[0003] At present, underground dampers generally adopt a rotating side-opening structure and a lateral push-pull structure. The damper with a rotating side-opening structure has a simple structure and flexible opening and closing because its door leaf is rotatably connected to the door frame through a hinge assembly. However, due to its generally small opening, it is difficult to apply to shafts and tunnels that need to pass large objects. Although the opening can be enlarged by increasing the door leaf to meet the passing needs, it is often difficult to open the damper due to factors such as different airflow pressures on both sides of the door leaf and bottom drum. There are even phenomena such as one person being unable to open the damper or the pressure after the damper is opened being too high to injure people, which poses serious safety hazards to the passage and avoidance of mine employees. The damper with a lateral push-pull structure is also a more common underground damper structure because of its simple structure, large opening and easy opening and closing. However, the guide rail or guide groove of the existing lateral push-pull structure damper is generally connected by welding or bolting with the entire channel steel horizontally built in the wall. Since the entire channel steel will cause the brick wall to be layered at the masonry location, thereby weakening the overall strength of the wall, the safety risk of the wall is relatively large, and the entire channel steel masonry will also cause transportation difficulties (such as a 4.2m long 14a channel steel weighs 61.05kg) and increase material costs. For this reason, there is a structure in the prior art that inserts expansion screws at intervals into the built wall, and then welds the guide rail or guide groove of the damper to the expansion screws. Although it solves the problem of the entire masonry channel steel, due to the small force surface of the expansion screw and the door leaf being subjected to wind pressure, long-term use can easily cause some of the expansion screws on the wall to loosen, causing the guide rail or guide groove to shake, affecting normal pushing and pulling and posing a safety hazard. Although the force acting on a single wall can be reduced by increasing the number of expansion screws on the wall, the overall strength of the wall will be weakened, resulting in similar problems caused by the entire channel steel being horizontally built in the wall.

[0004] Therefore, it is particularly important to study and produce an underground damper structure with simple structure, convenient construction, firmness, reliability, economy and practicality in order to reduce safety risks, reduce costs and increase efficiency, and improve labor productivity. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an underground air volume regulating damper which has a simple structure, is convenient to construct, is economical and practical, and is firm and reliable.

[0006] The utility model is implemented as follows: it comprises a wall, a sliding door, a rolling device, and a laneway block, wherein the wall is a wall arranged horizontally in the laneway, a door opening is opened on the wall, the sliding door is arranged on the wall to open and close the door opening, and the rolling device is arranged at the bottom and the top of the sliding door;

[0007] The invention also includes fixed piles, which include an intermediate connecting member and baffles vertically fixed at both ends of the intermediate connecting member. A plurality of fixed piles consistent with the pushing and pulling directions of the sliding door are fixed at intervals above and below the door opening. The intermediate connecting member is vertically fixed in the wall and the baffles are exposed on the surface of the wall. The rolling device includes guide grooves. Guide grooves extending in the pushing and pulling direction of the sliding door are respectively arranged above and below the same surface of the door opening. The guide grooves are fixedly connected to the baffles in the extending direction in sequence.

[0008] Furthermore, the wall is a brick wall, the intermediate connecting member is built between adjacent left and right and / or upper and lower bricks, and the inner side surface of the baffle on at least one side of the fixing pile is in contact with the surface of the wall.

[0009] Furthermore, the intermediate connecting piece is an angle iron or a square tube. When the angle iron is used as the intermediate connecting piece, the two side plates are respectively built between adjacent left and right and upper and lower bricks. When the square tube is used as the intermediate connecting piece, it is built between adjacent left and right or upper and lower bricks. The baffle is a flat steel plate or an angle iron. When the angle iron is used as the baffle, the opening direction is away from the intermediate connecting piece.

[0010] Furthermore, both ends of the guide groove are fixedly connected to the embedded parts on the tunnel sides of the wall.

[0011] Furthermore, the rolling device also includes rollers, and a plurality of rollers are respectively arranged at intervals at the upper end and the lower end of the sliding door, and the sliding door is arranged in guide grooves above and below the door opening by rolling on the rollers.

[0012] Furthermore, the sliding door includes sliding door I and sliding door II, and the upper and lower ends of the sliding door I and sliding door II are respectively spaced apart by at least two rollers. The sliding door I and sliding door II are respectively rolled in guide grooves above and below the door opening by their own rollers so as to be pushed and pulled along the left and right sides of the wall.

[0013] Furthermore, the sliding door I and sliding door II respectively include a door frame, a reinforcing rod, and a door trim panel. The door frame is a rectangular rigid outer frame, the reinforcing rod is arranged horizontally and / or longitudinally in the door frame, and the door trim panel fixedly covers the door frame and the reinforcing rod.

[0014] Furthermore, door blocking plates are fixedly arranged in the guide grooves on both sides of the door opening.

[0015] Beneficial effects of the utility model:

[0016] 1. The utility model sets a fixed pile composed of an intermediate connecting piece and vertical fixed baffles at both ends thereof, and builds the intermediate connecting piece of the fixed pile in the wall, and then fixes the guide groove of the damper with the baffles of each fixed pile exposed from the wall in the extension direction in turn. Therefore, on the basis of solving the problem of fixing the damper guide groove, the cost is lower than that of a whole channel steel masonry structure, and a single fixed pile is light and easy to be built in the wall, and it will not cause stratification after the brick wall is built, which will lead to the weakening of the overall strength of the wall. Therefore, the damper structure of the utility model is relatively simple, convenient to construct, and economical and practical.

[0017] 2. The fixing piles of the utility model are vertically fixed with baffles at both ends of the intermediate connecting piece, and the baffles are exposed on the surface of the wall, so that the fixed contact surface with the damper guide groove can be enlarged by the baffles, and the contact surface between the fixing piles and the wall can be significantly increased by the baffles at both ends of the intermediate connecting piece, so that a single fixing pile can withstand a force far greater than that of the expansion screws. Therefore, not only can the damper use fixing piles far less than the number of expansion screws, but it can also be used for a long time without easily causing the fixing piles on the wall to loosen, thereby effectively increasing the service life of the damper and eliminating the safety hazard caused by the shaking of the damper, and also avoiding the problem of stratification of the brick wall at the masonry due to excessive use of fixing piles and weakening the overall strength of the wall. Therefore, the damper of the utility model is firm and reliable.

[0018] In summary, the utility model has the characteristics of simple structure, convenient construction, economy and practicality, firmness and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 for Figure 1 Rear view of

[0021] Figure 3 for Figure 1 A magnified image of point A;

[0022] Figure 4 This is an axonometric drawing of a fixed pile of the utility model;

[0023] Figure 5 This is a cross-sectional view of the intermediate connecting member and the wall of the utility model;

[0024] In the figure: 1-wall, 11-door opening, 2-sliding door, 21-sliding door I, 22-sliding door II, 23-door frame, 24-reinforcement rod, 25-door trim, 3-rolling device, 31-guide groove, 32-roller, 4-tunnel bond, 5-fixed pile, 51-middle connecting piece, 52-baffle, 6-door stop plate, 7-brick body, 8-mortar joint. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited in any way. Any changes or improvements made based on the teachings of the present invention belong to the protection scope of the present invention.

[0026] like Figures 1 to 5 As shown, the utility model comprises a wall 1, a sliding door 2, a rolling device 3, and a laneway block 4. The wall 1 is a wall arranged horizontally in the laneway, a door opening 11 is opened on the wall 1, the sliding door 2 is arranged on the wall 1 to open and close the door opening 11, and the rolling device 3 is arranged at the bottom and the top of the sliding door 2;

[0027] It also includes fixed piles 5, which include an intermediate connecting member 51 and baffles 52 vertically fixed at both ends of the intermediate connecting member 51. A plurality of fixed piles 5 that are consistent with the pushing and pulling directions of the sliding door 2 are fixed at intervals above and below the door opening 11. The intermediate connecting member 51 is vertically fixed in the wall 1 and the baffles 52 are exposed on the surface of the wall 1. The rolling device 3 includes a guide groove 31. The guide grooves 31 extending along the pushing and pulling direction of the sliding door 2 are respectively arranged above and below the same surface of the door opening 11. The guide grooves 31 are fixedly connected to the baffles 52 in the extension direction in sequence.

[0028] The wall 1 is a brick wall, the intermediate connecting member 51 is built between adjacent left and right and / or upper and lower brick bodies 7 , and the inner side surface of the baffle 52 on at least one side of the fixing pile 5 is in contact with the surface of the wall 1 .

[0029] The intermediate connecting piece 51 is an angle iron or a square tube. When the angle iron is used as the intermediate connecting piece 51, the two side plates are respectively built between the adjacent left and right and upper and lower brick bodies 7. When the square tube is used as the intermediate connecting piece 51, it is built between the adjacent left and right or upper and lower brick bodies 7. The baffle plate 52 is a flat steel plate or an angle iron. When the angle iron is used as the baffle plate 52, the opening direction is away from the intermediate connecting piece 51.

[0030] The two ends of the guide groove 31 are also fixedly connected to the embedded parts on the tunnel 4 on both sides of the wall 1.

[0031] The rolling device 3 further includes rollers 32 . A plurality of rollers 32 are disposed at intervals at the upper and lower ends of the sliding door 2 . The sliding door 2 is rolled in guide grooves 31 above and below the door opening 11 by the rollers 32 .

[0032] The sliding door 2 includes a sliding door I21 and a sliding door II22. The upper and lower ends of the sliding doors I21 and II22 are respectively spaced apart by at least two rollers 32. The sliding doors I21 and II22 are respectively rolled in guide grooves 31 above and below the door opening 11 by their own rollers 32 so as to be pushed and pulled along the left and right sides of the wall 1.

[0033] The sliding door I 21 and the sliding door II 22 respectively include a door frame 23, a reinforcing rod 24, and a door trim 25. The door frame 23 is a rectangular rigid outer frame. The reinforcing rod 24 is arranged horizontally and / or longitudinally in the door frame 23. The door trim 25 fixedly covers the door frame 23 and the reinforcing rod 24.

[0034] Door blocking plates 6 are fixedly disposed in the guide grooves 31 on both sides of the door opening 11 . Example

[0035] like Figures 1 to 5 As shown, taking the construction of a 37cm brick wall as an example, the installation process of the underground air volume regulating damper is as follows:

[0036] 1. First, cut a 37cm long 63# angle iron as the middle connecting piece 51, and then cut two iron plates of 3cm thick×40cm long×30cm wide as baffles 52, and then weld the aforementioned iron plates to the two ends of the 63# angle iron to make an "H"-shaped fixed pile 5.

[0037] 2. According to the specifications and dimensions of the damper and the actual situation on site, three fixed piles 5 are evenly laid horizontally in the wall 1 above and below the door opening 11 of the damper. During the laying process, the two side plates of the aforementioned 63# angle iron are respectively laid between the adjacent left and right and upper and lower brick bodies 7, and at the same time, the inner side surface of at least one of the aforementioned iron plates on the fixed piles 5 is in contact with the surface of the wall 1.

[0038] 3. Weld the guide groove 31 to the baffles 52 of each fixed pile 5 in the extension direction, and then weld and reinforce the two ends of the guide groove 31 to the embedded parts on the laneway 4 on both sides of the wall 1, and then weld and fix the door stop plate 6 on the side away from the door opening 11 in the lower and / or upper guide groove 31 to complete the fixation of the upper and lower guide grooves 31 of the door opening 11.

[0039] 4. Lift the sliding door I 21 and the sliding door II 22 into the upper and lower guide grooves 31 on both sides of the door opening 11 respectively, so that the rollers 32 at the upper and lower ends can roll stably in the corresponding guide grooves 31, and complete the installation of the underground air volume regulating damper.

[0040] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A strong and reliable underground air volume regulating damper, comprising a wall (1), a sliding door (2), a rolling device (3), and a tunnel door (4), wherein the wall (1) is a wall arranged transversely in the tunnel, a door opening (11) is provided on the wall (1), the sliding door (2) is arranged on the wall (1) to open and close the door opening (11), and the rolling device (3) is arranged at the bottom and the top of the sliding door (2); It is characterized in that The invention also comprises a fixing pile (5), the fixing pile (5) comprising an intermediate connecting member (51) and baffles (52) respectively fixed vertically at both ends of the intermediate connecting member (51); a plurality of fixing piles (5) are respectively fixed at intervals above and below the door opening (11) in the same direction as the push-pull direction of the sliding door (2); the intermediate connecting member (51) is vertically fixed in the wall (1) and the baffles (52) are exposed on the surface of the wall (1); the rolling device (3) comprises a guide groove (31); guide grooves (31) extending in the push-pull direction of the sliding door (2) are respectively arranged above and below the same surface of the door opening (11); the guide grooves (31) are sequentially fixedly connected to the baffles (52) in the extending direction.

2. The strong and reliable underground air volume regulating damper according to claim 1 is characterized in that: The wall (1) is a brick wall, the intermediate connection member (51) is built between adjacent left and right and / or upper and lower brick bodies (7), and the inner side surface of the baffle (52) on at least one side of the fixing pile (5) is in contact with the surface of the wall (1).

3. The strong and reliable underground air volume regulating damper according to claim 2 is characterized in that: The intermediate connecting member (51) is an angle iron or a square tube. When the angle iron is used as the intermediate connecting member (51), the two side plates are respectively built between adjacent left and right and upper and lower brick bodies (7). When the square tube is used as the intermediate connecting member (51), the two side plates are built between adjacent left and right or upper and lower brick bodies (7). The baffle plate (52) is a flat steel plate or an angle iron. When the angle iron is used as the baffle plate (52), the opening direction is away from the intermediate connecting member (51).

4. The strong and reliable underground air volume regulating damper according to claim 1 is characterized in that: The two ends of the guide groove (31) are also fixedly connected to the embedded parts on the tunnel joints (4) on both sides of the wall (1).

5. The strong and reliable underground air volume regulating damper according to claim 1, 2, 3 or 4, characterized in that: The rolling device (3) further comprises rollers (32), and a plurality of rollers (32) are respectively arranged at intervals at the upper end and the lower end of the sliding door (2), and the sliding door (2) is rollingly arranged in the guide grooves (31) above and below the door opening (11) via the rollers (32).

6. The strong and reliable underground air volume regulating damper according to claim 5 is characterized in that: The sliding door (2) comprises a sliding door I (21) and a sliding door II (22). The upper and lower ends of the sliding door I (21) and the sliding door II (22) are respectively spaced apart by at least two rollers (32). The sliding door I (21) and the sliding door II (22) are respectively rolled in guide grooves (31) above and below the door opening (11) by means of their respective rollers (32) so as to be pushed and pulled along the left and right sides of the wall (1).

7. The strong and reliable underground air volume regulating damper according to claim 6 is characterized in that: The sliding door I (21) and the sliding door II (22) respectively comprise a door frame (23), a reinforcing rod (24), and a door trim (25); the door frame (23) is a rectangular rigid outer frame; the reinforcing rod (24) is arranged in the door frame (23) in a transverse and / or longitudinal direction; and the door trim (25) fixedly covers the door frame (23) and the reinforcing rod (24).

8. The strong and reliable underground air volume regulating damper according to claim 6 is characterized in that: Door blocking plates (6) are fixedly arranged in the guide grooves (31) on both sides of the door opening (11).

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