Positive pressure air duct equipment special for mine

Abstract

The invention discloses positive pressure air duct equipment special for mines, and belongs to the technical field of air ducts, the air duct equipment comprises an air duct main body, a first connecting end fixedly mounted at one end of the air duct main body and a second connecting end fixedly mounted at the other end of the air duct main body, and one side, far away from the air duct main body, of the first connecting end is fixedly connected with an insertion ring; the side, away from the air duct body, of the second connecting end is provided with an inserting groove matched with the inserting ring, the inner wall of the inserting ring is fixedly connected with a clamping block, the second connecting end is provided with a clamping groove matched with the clamping block, the second connecting end is fixedly connected with a mounting shell, the interior of the mounting shell is movably connected with an inserting rod, and the inserting rod penetrates through the mounting shell. One end of the inserting rod is rotationally connected with an adjusting handle; through cooperative use of the devices, a common air duct splicing mode is replaced, so that two sections of air ducts can be conveniently spliced together, and meanwhile, the possibility that the ventilation effect becomes poor after the air ducts are used for a long time is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of air ducts, in particular to positive pressure air duct equipment special for mines. Background Art

[0002] Positive pressure wind duct is a kind of ventilation equipment used in specific environments. It is mainly used for local pressure-guided ventilation in coal mines, tunnels, subway projects and other places. Positive pressure wind duct can transport air or gas to the required location in the form of positive pressure to ensure the normal operation of the ventilation system.

[0003] In the prior art, most common ones are flexible air ducts, the main body of which is usually made of leather, plastic, canvas, rubber and other materials. A plurality of steel rings are arranged inside each section of the air duct main body as a skeleton. When splicing two sections of the air duct together, it is necessary to squeeze the steel ring at the end of one section of the air duct to deform it so that the current section of the air duct can be inserted into the interior of the other section of the air duct to complete the splicing of the two sections of the air duct. This method is relatively simple and convenient, but during long-term use, the steel ring at the end of the air duct will also be repeatedly squeezed and deformed, so that the steel ring may gradually lose its original elasticity, thereby reducing the sealing of the air duct connection and affecting the ventilation effect.

[0004] Therefore, the present invention provides a positive pressure wind tube device specially used in mines to solve the above problems. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] The present invention provides a positive pressure wind tube device specially used in mines, aiming to solve the problems raised in the background technology.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a positive-pressure wind duct equipment specially used in mines, which includes a wind duct main body, a first connecting end fixedly installed on one end of the wind duct main body, and a second connecting end fixedly installed on the other end of the wind duct main body, a plug ring is fixedly connected to the side of the first connecting end away from the wind duct main body, a slot matching the plug ring is provided on the side of the second connecting end away from the wind duct main body, a card block is fixedly connected to the inner wall of the card block, and a card groove matching the card block is provided on the second connecting end.

[0009] As a preferred technical solution of the present application, a mounting shell is fixedly connected to the second connecting end, an insert rod is movably connected inside the mounting shell, the insert rod passes through the mounting shell, and one end of the insert rod is rotatably connected to an adjustment handle.

[0010] As a preferred technical solution of the present application, a through hole is provided on the second connecting end, the through hole is connected to the slot, and a socket adapted to the plug rod is provided on the side surface of the plug ring.

[0011] As a preferred technical solution of the present application, a second spring is sleeved on the side surface of the insertion rod, one end of the second spring is fixedly connected to the insertion rod, and the other end of the second spring is fixedly connected to the inside of the mounting shell.

[0012] As a preferred technical solution of the present application, a pressure plate is provided inside the slot, and the side surface of the pressure plate slides against the inner wall of the slot. A first spring is provided on one side of the pressure plate, and one end of the first spring is fixedly connected to one side of the pressure plate, and the other end of the first spring is fixedly connected to the inside of the slot.

[0013] As a preferred technical solution of the present application, a first rubber pad and a second rubber pad are fixedly connected to one side of the first connecting end away from the hair duct body, the side surface of the first rubber pad fits with the inner wall of the plug-in ring, and the inner wall of the second rubber pad fits with the side surface of the plug-in ring.

[0014] (III) Beneficial effects

[0015] The present invention has a simple structure and is easy to use. It replaces the common air duct splicing method by arranging the first connecting end, the second connecting end, the plug ring and the clamping block, so that two sections of the air duct can be conveniently spliced ​​together, while reducing the possibility of the ventilation effect of the air duct being deteriorated after long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of a positive pressure air cylinder equipment specially used in mines;

[0017] Figure 2 This is the installation diagram of the medium pressure plate of the positive pressure air duct equipment specially used in mines;

[0018] Figure 3 This is a schematic diagram of the installation of the block in the positive pressure air duct equipment specially used in mines;

[0019] Figure 4 It is a cross-sectional view of the second connection end of the positive pressure air cylinder equipment specially used in mines;

[0020] Figure 5 for Figure 2 Enlarged view of point A in .

[0021] In the figure:

[0022] 1. Air duct body; 2. First connecting end; 3. Second connecting end; 4. Insert ring; 5. Slot; 6. Card slot; 7. Block; 8. Press plate; 9. First spring; 10. Mounting shell; 11. Insert rod; 12. Second spring; 13. Adjustment handle; 14. First rubber pad; 15. Insert hole; 16. Through hole; 17. Second rubber pad. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] The present invention provides a positive pressure wind tube device specially used for mines, such as Figure 1 , Figure 2 and Figure 3 As shown, the hair duct device includes a hair duct body 1, a first connecting end 2 fixedly mounted on one end of the hair duct body 1, and a second connecting end 3 fixedly mounted on the other end of the hair duct body 1, a plug ring 4 is fixedly connected to the side of the first connecting end 2 away from the hair duct body 1, a slot 5 matched with the plug ring 4 is provided on the side of the second connecting end 3 away from the hair duct body 1, a clamping block 7 is fixedly connected to the inner wall of the clamping ring 4, and a clamping groove 6 matched with the clamping block 7 is provided on the second connecting end 3.

[0025] The duct body 1 of the duct equipment is made of rubber-plastic coated cloth material, has good flexibility, sealing and wear resistance, and is suitable for ventilation in coal mines, tunnels, subway projects and other occasions. A plurality of steel ring frames are evenly arranged inside the duct body 1 to enhance the structural strength of the duct body 1 and facilitate folding the duct for storage.

[0026] When using the air duct equipment, it is necessary to connect multiple air duct sections together to form a complete conveying channel. When connecting two adjacent air duct sections together, it is first necessary to align the first connecting end 2 on one of the air duct main bodies 1 with the second connecting end 3 on the other air duct main body 1, and then manually align the plug ring 4 and the block 7 on the first connecting end 2 with the slot 5 and the slot 6 on the second connecting end 3, and then translate the two air duct sections so that the plug ring 4 and the block 7 are respectively inserted into the slot 5 and the slot 6, and the slot 6 is L-shaped. When the block 7 comes into conflict with the inner wall of the slot 6, it is necessary to rotate any one of the air ducts so that the block 7 continues to move a certain distance inside the slot 6. At this time, the inner wall of the slot 6 will fix the block 7, thereby connecting the two air duct sections together.

[0027] Furthermore, in order to improve the firmness of the connection between the two sections of the wind tube, Figure 2 , Figure 4 and Figure 5 As shown, a mounting shell 10 is fixedly connected to the second connecting end 3, and an insert rod 11 is movably connected inside the mounting shell 10. The insert rod 11 penetrates the mounting shell 10, and one end of the insert rod 11 is rotatably connected to an adjustment handle 13.

[0028] A through hole 16 is formed on the second connecting end 3 , and the through hole 16 is communicated with the slot 5 . A plug hole 15 matched with the plug rod 11 is formed on the side surface of the plug ring 4 .

[0029] The adjusting handle 13 can be rotated ninety degrees. When the staff bends the adjusting handle 13, the adjusting handle 13 can drive the plug rod 11 connected thereto to move. The plug rod 11 will present two states under the influence of the adjusting handle 13. The first state is that the plug rod 11 extends through the through hole 16 to the inside of the slot 5, and the second state is that the plug rod 11 is retracted inside the mounting shell 10 and the through hole 16.

[0030] When connecting two adjacent sections of the air duct, it is first necessary to bend the adjusting handle 13 so that the plug rod 11 is retracted inside the mounting shell 10 and the through hole 16, and then it is necessary to align the plug ring 4 and the block 7 on one of the air duct bodies 1 with the slot 5 and the slot 6 on the other air duct body 1, and by translating the two sections of the air duct, the plug ring 4 and the block 7 are respectively inserted into the slot 5 and the slot 6, and the slot 6 is L-shaped. When the block 7 and the inner wall of the slot 6 come into conflict, it is necessary to rotate any one of the air ducts so that the block 7 continues to move a certain distance inside the slot 6. When the block 7 and the inner wall of the slot 6 come into conflict again, the socket 15 on the plug ring 4 just comes to the plug rod 11. Then, by bending the adjusting handle 13, the adjusting handle 13 can drive the plug rod 11 to move, so that the plug rod 11 is plugged into the socket 15, thereby improving the firmness of the connection between the two sections of the air duct.

[0031] In order to improve the stability of the adjustment handle 13 during operation, Figure 2 , Figure 4 and Figure 5 As shown, a second spring 12 is sleeved on the side surface of the insertion rod 11 , one end of the second spring 12 is fixedly connected to the insertion rod 11 , and the other end of the second spring 12 is fixedly connected to the inside of the mounting shell 10 .

[0032] The state of the insertion rod 11 is controlled by the adjusting handle 13. By setting the second spring 12, a thrust can be applied to the insertion rod 11, thereby driving the adjusting handle 13 to be close to the mounting shell 10, effectively improving the stability of the adjusting handle 13, so that the adjusting handle 13 can better serve the insertion rod 11.

[0033] It should be noted that in order to facilitate the staff to connect two adjacent sections of the wind tube, such as Figure 1 , Figure 2 and Figure 4 As shown, a pressure plate 8 is provided inside the slot 5, and the side surface of the pressure plate 8 slides against the inner wall of the slot 5. A first spring 9 is provided on one side of the pressure plate 8, and one end of the first spring 9 is fixedly connected to one side of the pressure plate 8, and the other end of the first spring 9 is fixedly connected to the inside of the slot 5.

[0034] When connecting two adjacent sections of the wind tube, the plug ring 4 on one of the wind tube bodies 1 will be inserted into the slot 5 on the other wind tube body 1. During this process, the plug ring 4 will come into contact with the pressure plate 8. As the plug ring 4 continues to move, the plug ring 4 will drive the pressure plate 8 to move inside the slot 5 and compress the first spring 9, and the first spring 9 will also apply a thrust to the pressure plate 8 at all times. After the block 7 on one of the wind tube bodies 1 and the inner wall of the slot 6 on the other wind tube body 1 produce a second conflict, it is necessary to bend the adjustment handle 13 so that the plug rod 11 is inserted into the socket 15. At this time, due to the presence of the first spring 9, the pressure plate 8 will be pushed close to the plug ring 4, thereby reducing the possibility of the plug ring 4 rotating and causing the socket 15 and the plug rod 11 to be misaligned, so as to ensure that the plug rod 11 can be smoothly inserted into the socket 15.

[0035] Furthermore, in order to improve the air tightness of the air duct during use, Figure 1 , Figure 3 and Figure 4 As shown, the first connecting end 2 is fixedly connected to the side away from the wind tube body 1 with a first rubber pad 14 and a second rubber pad 17, respectively. The side surface of the first rubber pad 14 fits with the inner wall of the insert ring 4, and the inner wall of the second rubber pad 17 fits with the side surface of the insert ring 4.

[0036] When connecting two adjacent sections of the air duct, it is necessary to connect the first connecting end 2 on one of the air duct main bodies 1 with the second connecting end 3 on the other air duct main body 1. When the plug ring 4 on the first connecting end 2 completely enters the interior of the slot 5, the second connecting end 3 will also be in close contact with the first rubber pad 14 and the second rubber pad 17 on the first connecting end 2. The arrangement of the first rubber pad 14 and the second rubber pad 17 can effectively cut off the connection between the inside and outside of the air duct main body 1, thereby improving the air tightness of the air duct when in use.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Positive pressure air duct equipment for mines, characterized by: The wind tube device comprises a wind tube body (1), a first connecting end (2) fixedly mounted on one end of the wind tube body (1), and a second connecting end (3) fixedly mounted on the other end of the wind tube body (1); a plug ring (4) is fixedly connected to the side of the first connecting end (2) away from the wind tube body (1); a slot (5) matching the plug ring (4) is provided on the side of the second connecting end (3) away from the wind tube body (1); a clamping block (7) is fixedly connected to the inner wall of the clamping ring (4); and a clamping groove (6) matching the clamping block (7) is provided on the second connecting end (3).

2. The mine-specific positive pressure wind tube equipment according to claim 1 is characterized in that: The second connecting end (3) is fixedly connected to a mounting shell (10), the interior of the mounting shell (10) is movably connected to an insertion rod (11), the insertion rod (11) passes through the mounting shell (10), and one end of the insertion rod (11) is rotatably connected to an adjustment handle (13).

3. The positive pressure wind tube equipment for mines according to claim 2 is characterized in that: The second connecting end (3) is provided with a through hole (16), the through hole (16) is connected to the slot (5), and the side surface of the insert ring (4) is provided with an insert hole (15) adapted to the insert rod (11).

4. The mine-specific positive pressure wind tube equipment according to claim 2 is characterized in that: A second spring (12) is sleeved on the side surface of the insertion rod (11), one end of the second spring (12) is fixedly connected to the insertion rod (11), and the other end of the second spring (12) is fixedly connected to the inside of the mounting shell (10).

5. The positive pressure wind tube equipment for mines according to claim 1 is characterized in that: A pressure plate (8) is arranged inside the slot (5), and the side surface of the pressure plate (8) is slidably attached to the inner wall of the slot (5). A first spring (9) is arranged on one side of the pressure plate (8), and one end of the first spring (9) is fixedly connected to one side of the pressure plate (8), and the other end of the first spring (9) is fixedly connected to the inside of the slot (5).

6. The positive pressure wind tube equipment for mines according to claim 1 is characterized in that: A first rubber pad (14) and a second rubber pad (17) are respectively fixedly connected to a side of the first connecting end (2) away from the wind tube body (1); a side surface of the first rubber pad (14) is in contact with an inner wall of the insert ring (4); and an inner wall of the second rubber pad (17) is in contact with a side surface of the insert ring (4).

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