Suspension protection device of coal mine ventilation air duct

Abstract

The utility model discloses a suspension protection device of a coal mine ventilation air duct, which belongs to the technical field of suspension, and comprises two bolts, the outer surfaces of the two bolts are jointly connected with two protection mechanisms in a sliding mode, the outer surfaces of the two bolts are both connected with nuts in a threaded mode, and the two protection mechanisms are connected with the nuts in a threaded mode. The coal mine ventilation air duct suspension device comprises two protection mechanisms, the interiors of the two protection mechanisms are jointly and rotationally connected with a suspension mechanism, the two protection mechanisms are matched with the suspension mechanism, the coal mine ventilation air duct can be suspended, the protection effect is achieved, after the device is installed, the ventilation air duct is suspended through three force bearing points at the same time, and the stability of the air duct is guaranteed to a great extent; and through the combined action of the three stress points, the device can be used for hanging the horizontal section of the ventilation air duct and can also be used for hanging the vertical section of the ventilation air duct, the continuity and stability of a ventilation system can be effectively guaranteed, the function of high hanging stability can be achieved, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of suspension technology, and more specifically, to a suspension protection device for a coal mine ventilation duct. Background Technology

[0002] Suspension protection for ventilation ducts is of paramount importance in coal mines and similar environments. It not only affects the stability and efficiency of the ventilation system but also directly impacts the safety of workers. Ventilation ducts are a key component of coal mine ventilation systems, responsible for introducing fresh air underground and expelling stale air. Suspension protection ensures the stability of the ventilation ducts in the complex and ever-changing underground environment, preventing damage or displacement due to external forces (such as impacts or compression), thereby guaranteeing the continuity and stability of the ventilation system.

[0003] Chinese Patent Publication No. CN221373662U discloses a suspension protection device for coal mine ventilation ducts. When used for suspending coal mine ventilation ducts, this device allows for simultaneous suspension and height adjustment, facilitating use at different locations. It also provides unfolding protection for the suspended duct, preventing damage from falling rocks from the mine roof. Furthermore, the protected area can be adjusted and controlled to further enhance the protective effect. However, in practice, the following drawbacks exist: When suspending and protecting coal mine ventilation ducts, the device has only one stress point, leading to poor stability and potential hazards.

[0004] Therefore, a suspension protection device for coal mine ventilation ducts is proposed to address the above problems. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of this utility model is to provide a suspension protection device for coal mine ventilation ducts, which can achieve a strong suspension stability function.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A suspension protection device for a coal mine ventilation duct includes two bolts, with two protective mechanisms slidably connected to the outer surfaces of the two bolts, and nuts threaded onto the outer surfaces of both bolts. A suspension mechanism is rotatably connected to the interior of the two protective mechanisms.

[0010] Furthermore, the suspension mechanism includes a rotating shaft, four limiting plates are fixedly connected to the outer surface of the rotating shaft, a rotating joint is fixedly connected to the outer surface of the rotating shaft, and a suspension component is fixedly connected to the upper end of the rotating joint.

[0011] Furthermore, the suspension assembly includes a hollow tube, an internally threaded tube fixedly connected to the inner surface of the hollow tube, a lead screw threadedly connected to the inner surface of the internally threaded tube, the lower end of the lead screw being fixedly connected to the upper end of the rotary joint, a limit plate being fixedly connected to the upper end of the lead screw, and a rotating seat being rotatably connected to the upper inner surface of the hollow tube, with four positioning holes at the upper end of the rotating seat.

[0012] Furthermore, the protective mechanism includes two rotating tubes, with a protective plate fixedly connected to the outer surfaces of the two rotating tubes. A connecting plate is fixedly connected to the outer surface of the protective plate, and the inner surface of the connecting plate is slidably connected to the outer surfaces of two bolts respectively. A rotating seat is fixedly connected to the outer surface of the protective plate, and a protective component is rotatably connected to the outer surface of the rotating seat.

[0013] Furthermore, the protective component includes a connector, the inner surface of which is rotatably connected to the outer surface of the rotating seat II. A slide rod is fixedly connected to the upper end of the connector, a limit plate II is fixedly connected to the upper end of the slide rod, a spring is fixedly connected to the lower end of the limit plate II, a slide tube is slidably connected to the outer surface of the limit plate II, and a rotating seat III is rotatably connected to the upper inner surface of the slide tube. Four positioning holes II are provided on the upper end of the rotating seat III.

[0014] Furthermore, the outer surfaces of all four rotating tubes are rotatably connected to the outer surface of the rotating shaft.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] This solution uses two protective mechanisms in conjunction with a suspension mechanism to suspend the ventilation duct in a coal mine, thus providing protection. After installation, the device suspends the ventilation duct from three points simultaneously, greatly ensuring its stability. Furthermore, the combined action of these three points can suspend not only the horizontal section of the ventilation duct but also the vertical section, effectively preventing damage or displacement due to external forces (such as collisions or compression). This ensures the continuity and stability of the ventilation system and enhances the practicality of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the suspension mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the suspension component of this utility model;

[0021] Figure 4 This is a schematic diagram of the protective mechanism of this utility model;

[0022] Figure 5 This is a schematic diagram of the protective component of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Bolt; 2. Nut; 3. Protective mechanism; 31. Rotating tube; 32. Protective plate; 33. Connecting plate; 34. Rotating seat two; 35. Protective component; 351. Connector; 352. Slide rod; 353. Limiting plate two; 354. Spring; 355. Slide tube; 356. Rotating seat three; 357. Positioning hole two; 4. Suspension mechanism; 41. Rotating shaft; 42. Limiting plate; 43. Rotating joint; 44. Suspension component; 441. Hollow tube; 442. Internally threaded tube; 443. Lead screw; 444. Limiting plate one; 445. Rotating seat one; 446. Positioning hole one. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example:

[0029] Please see Figure 1-5 A suspension protection device for a coal mine ventilation duct includes two bolts 1, two protective mechanisms 3 that are slidably connected to the outer surfaces of the two bolts 1, nuts 2 that are threaded onto the outer surfaces of the two bolts 1, and suspension mechanisms 4 that are rotatably connected to the inner surfaces of the two protective mechanisms 3.

[0030] This solution uses two protective mechanisms 3 in conjunction with a suspension mechanism 4 to suspend the ventilation duct in the coal mine, thereby achieving the purpose of protection. By using two bolts 1 and two nuts 2, the two protective mechanisms 3 can be tightly connected together, thereby fixing the device to the outer surface of the ventilation duct.

[0031] Please see Figure 2-3 The suspension mechanism 4 includes a rotating shaft 41, four limiting plates 42 are fixedly connected to the outer surface of the rotating shaft 41, a rotating joint 43 is fixedly connected to the outer surface of the rotating shaft 41, and a suspension component 44 is fixedly connected to the upper end of the rotating joint 43.

[0032] The suspension assembly 44 includes a hollow tube 441, an internally threaded tube 442 fixedly connected to the inner surface of the hollow tube 441, a lead screw 443 threadedly connected to the inner surface of the internally threaded tube 442, the lower end of the lead screw 443 fixedly connected to the upper end of the rotary joint 43, a limit plate 444 fixedly connected to the upper end of the lead screw 443, and a rotating seat 445 rotatably connected to the upper inner surface of the hollow tube 441, with four positioning holes 446 opened at the upper end of the rotating seat 445.

[0033] This solution uses positioning bolts and four positioning holes 446 to fix the rotating seat 445 in the wall above the ventilation duct. The fixing angle of the rotating seat 445 can be adjusted according to the surface inclination of the wall to ensure the stability of the device during use. After the rotating seat 445 is fixed, the lead screw 443 can be rotated to adjust the overall length of the lead screw 443 and the hollow tube 441, so that the position of the rotating joint 43 and the rotating shaft 41 can be located above the ventilation duct. At this time, the positions of the two protective mechanisms 3 are successfully adjusted, and the device also has a stress point, making the subsequent installation of the device more convenient.

[0034] Please see Figure 4-5 The protective mechanism 3 includes two rotating tubes 31. The outer surfaces of the four rotating tubes 31 are rotatably connected to the outer surface of the rotating shaft 41. The outer surfaces of the two rotating tubes 31 are fixedly connected to a protective plate 32. The outer surface of the protective plate 32 is fixedly connected to a connecting plate 33. The inner surface of the connecting plate 33 is slidably connected to the outer surfaces of two bolts 1 respectively. The outer surface of the protective plate 32 is fixedly connected to a rotating seat 34. The outer surface of the rotating seat 34 is rotatably connected to a protective component 35.

[0035] The protective component 35 includes a connector 351, the inner surface of which is rotatably connected to the outer surface of the rotating seat 34. A slide rod 352 is fixedly connected to the upper end of the connector 351. A limit plate 353 is fixedly connected to the upper end of the slide rod 352. A spring 354 is fixedly connected to the lower end of the limit plate 353. A slide tube 355 is slidably connected to the outer surface of the limit plate 353. A rotating seat 356 is rotatably connected to the upper inner surface of the slide tube 355. Four positioning holes 357 are provided at the upper end of the rotating seat 356.

[0036] This solution involves rotating two protective plates 32 upwards around a rotating shaft 41, allowing each plate 32 to rotate around the shaft 41 with the cooperation of two rotating tubes 31. After opening the two protective plates 32, the screw 443 is rotated again, lowering the two protective plates 32 downwards until the outer surface of the rotating shaft 41 contacts the ventilation duct. At this point, the two protective plates 32 are released, and they will rotate downwards around the rotating shaft 41. When the inner surfaces of the two protective plates 32 are in close contact with the outer surface of the ventilation duct, two bolts 1 and two nuts 2 are used to fix the two protective plates 32 together. After fixing, Rotate the connector 351 around the outer surface of the rotating seat 34 to adjust the angle of the slide rod 352, causing the slide rod 352 and slide tube 355 to tilt. Finally, rotate the rotating seat 356 and lengthen the overall length of the slide rod 352 and slide tube 355, so that the rotating seat 356 can be fixed to the side wall around the ventilation duct with the cooperation of the positioning bolt and the four positioning holes 357. When the overall length of the slide rod 352 and slide tube 355 is lengthened, the spring 354 will be compressed, and the ventilation duct can be fully pulled to both sides and upwards under the action of the two springs 354, ensuring the stability of the ventilation duct after it is suspended.

[0037] Working principle: When the device is needed to suspend and protect the ventilation duct in a coal mine, first rotate the two protective plates 32 upwards around the rotating shaft 41 to open the two protective plates 32. Then, let the inner surfaces of the two protective plates 32 fit tightly against the outer surface of the ventilation duct, and use two bolts 1 and two nuts 2 to fix the two protective plates 32 together. After fixing, rotate the lead screw 443 to adjust the overall length of the lead screw 443 and the hollow tube 441, so that the position of the rotating joint 43 and the rotating shaft 41 can be located above the ventilation duct. Using the positioning bolts and the four positioning holes 446, the rotating seat 445 can be fixed in the wall above the ventilation duct, and the fixing angle of the rotating seat 445 can be adjusted according to the surface inclination of the wall. This ensures the stability of the device during use. Having a stress point makes subsequent installation easier. Rotating the connector 351 around the outer surface of the rotating seat 34 adjusts the angle of the slide rod 352, causing the slide rod 352 and slide tube 355 to tilt. Finally, rotating the rotating seat 356 and lengthening the slide rod 352 and slide tube 355 allows the rotating seat 356 to be fixed to the side wall around the ventilation duct with the cooperation of the positioning bolts and the four positioning holes 357. When the overall length of the slide rod 352 and slide tube 355 is extended, the spring 354 is compressed, and the ventilation duct is fully pulled upwards and to both sides under the action of the two springs 354, ensuring the stability of the ventilation duct after suspension.

[0038] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A suspension and protection device for a coal mine ventilation duct, comprising two bolts (1), characterized in that: The outer surfaces of the two bolts (1) are slidably connected to two protective mechanisms (3), and the outer surfaces of the two bolts (1) are threaded with nuts (2). The two protective mechanisms (3) are rotatably connected to a suspension mechanism (4). The suspension mechanism (4) includes a rotating shaft (41), four limiting plates (42) are fixedly connected to the outer surface of the rotating shaft (41), a rotating joint (43) is fixedly connected to the outer surface of the rotating shaft (41), and a suspension assembly (44) is fixedly connected to the upper end of the rotating joint (43). The suspension assembly (44) includes a hollow tube (441), an internally threaded tube (442) is fixedly connected to the inner surface of the hollow tube (441), a lead screw (443) is threadedly connected to the inner surface of the internally threaded tube (442), the lower end of the lead screw (443) is fixedly connected to the upper end of the rotating joint (43), a limit plate (444) is fixedly connected to the upper end of the lead screw (443), a rotating seat (445) is rotatably connected to the upper inner surface of the hollow tube (441), and four positioning holes (446) are opened at the upper end of the rotating seat (445). The protective mechanism (3) includes two rotating tubes (31), and a protective plate (32) is fixedly connected to the outer surface of the two rotating tubes (31). A connecting plate (33) is fixedly connected to the outer surface of the protective plate (32). The inner surface of the connecting plate (33) is slidably connected to the outer surface of two bolts (1). A rotating seat (34) is fixedly connected to the outer surface of the protective plate (32). A protective component (35) is rotatably connected to the outer surface of the rotating seat (34). The protective component (35) includes a connector (351), the inner surface of the connector (351) is rotatably connected to the outer surface of the rotating seat (34), a slide rod (352) is fixedly connected to the upper end of the connector (351), a limit plate (353) is fixedly connected to the upper end of the slide rod (352), a spring (354) is fixedly connected to the lower end of the limit plate (353), a slide tube (355) is slidably connected to the outer surface of the limit plate (353), a rotating seat (356) is rotatably connected to the upper inner surface of the slide tube (355), and four positioning holes (357) are provided at the upper end of the rotating seat (356).

2. The suspension and protection device for a coal mine ventilation duct according to claim 1, characterized in that: The outer surfaces of the four rotating tubes (31) are rotatably connected to the outer surface of the rotating shaft (41).

Images