Coal mine ventilation auxiliary tool

Abstract

The utility model relates to the field of ventilation, and discloses a coal mine ventilation auxiliary tool which comprises a main body component and a conversion component, the main body component comprises an outer frame, a partition plate is installed in the outer frame to divide the interior of the outer frame into a large area and a small area, an inner frame is arranged in the large area, and a plurality of fans are installed in the inner frame; the conversion component comprises transverse shaft rods fixedly connected with the two ends of the inner frame, one shaft rod is connected with the inner wall of the outer frame through a bearing, and the other shaft rod penetrates through the partition plate through a bearing and then extends into the small area. In addition, a driving mechanism used for driving the shaft rod to turn over is arranged in the small area. The shaft rod can be driven to rotate, so that the shaft rod drives the inner frame and the fan to turn over, and turning over of the fan means that the fan can change the air duct effect of the fan, due to the fact that one side of the fan is used for air draft, and the other side of the fan is used for air suction; therefore, turning over the fan means that the device can select whether to suck air into the coal mine or exhaust air in the coal mine to the outside according to needs.

Description

Technical Field

[0001] The utility model belongs to the field of ventilation, in particular to a coal mine ventilation auxiliary tool. Background Art

[0002] The main purpose of coal mine ventilation is to dilute and discharge the toxic and harmful gases, dust and water vapor gushing out of the coal and rock strata underground in the coal mine, and to provide fresh air for underground workers.

[0003] From the above, it can be seen that coal mine ventilation requires both exhaust and blowing operations, that is, exhaust fans and blowers must be used at the same time. As for the installation location of exhaust fans and blowers, they are usually designed according to the coal mine air duct. Once installed, it is difficult to change the location. Even if the underground structure of the coal mine changes as it is dug, it can only be installed in another location. This not only wastes the number of fans, but is also very inconvenient. Utility Model Content

[0004] The technical problem to be solved is: how to make the fan that has been installed in the right position both exhaust and supply air.

[0005] Technical solution: The utility model provides a coal mine ventilation auxiliary tool, including a main component and a conversion component. The main component includes an outer frame, and a partition is installed in the outer frame to divide the interior thereof into two large and small areas. The large area is provided with an inner frame, and a plurality of fans are installed in the inner frame; the conversion component includes a transverse shaft rod fixedly connected at both ends of the inner frame, one of the shaft rods is connected to the inner wall of the outer frame through a bearing, and the other shaft rod passes through the partition through a bearing and extends to the small area; in addition, a driving mechanism for driving the shaft rod to flip is provided in the small area.

[0006] Furthermore, the driving mechanism includes a servo motor installed in the small area, and the output shaft of the servo motor and the outer peripheral side of the corresponding shaft rod are fixedly sleeved with mutually meshing bevel gears.

[0007] Furthermore, the outer ring of the bearing is fixedly connected to the inner wall of the outer frame or the inner wall of the partition, and the inner ring thereof is interference fit with the shaft rod.

[0008] Furthermore, the front and rear ends of the outer frame are connected to dustproof nets through a connecting mechanism, and the dustproof nets can prevent dust from entering the fan and the servo motor.

[0009] Furthermore, the connection mechanism is a clamping column connected to the four corners of the inner side of the dustproof net; at the same time, the four corners of the front and rear ends of the outer frame are provided with clamping holes for clamping with the clamping columns.

[0010] Furthermore, the engaging column is an elastic column, and the diameter of the elastic column is slightly larger than the diameter of the engaging hole.

[0011] Furthermore, the connection mechanism is a magnetic sheet connected to the four corners of the inner side of the dustproof net; at the same time, the outer frame is a metal frame, so that the dustproof net can be adsorbed on the metal frame through the magnetic sheet.

[0012] Technical effect: In the utility model, under the action of the driving mechanism, the shaft rod can be driven to rotate, so that the shaft rod drives the inner frame and the fan to flip over. The flipping of the fan means that its air duct effect can be changed. Because the fan itself has one side for exhausting air and the other side for sucking air, flipping the fan means that the device can choose whether to exhaust air into the coal mine or to exhaust the air inside the coal mine to the outside according to needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a three-dimensional schematic diagram of the internal structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the engaging hole structure of the utility model;

[0018] In the figure: 1, outer frame; 2, partition; 3, inner frame; 4, fan; 5, shaft; 6, driving mechanism; 601, servo motor; 602, bevel gear; 7, dustproof net; 8, locking column; 9, locking hole. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0020] The coal mine ventilation auxiliary tool provided in this specific embodiment is as follows: Figure 1 , Figure 2 and Figure 3 As shown, it includes a main component and a conversion component, wherein:

[0021] The main component comprises an outer frame 1, in which a partition plate 2 is installed to divide the interior of the outer frame 1 into two large and small areas, wherein an inner frame 3 is arranged in the large area, in which a plurality of fans 4 are installed.

[0022] The conversion member includes a transverse shaft 5 fixedly connected at both ends of the inner frame 3, one of the shafts 5 is connected to the inner wall of the outer frame 1 through a bearing, and the other shaft 5 passes through the partition 2 through a bearing and extends to the small area; in addition, a driving mechanism 6 for driving the shaft 5 to flip is provided in the small area. Figure 3 As shown, the driving mechanism 6 includes a servo motor 601 installed in a small area, and the output shaft of the servo motor 601 and the outer peripheral side of the corresponding shaft rod 5 are fixedly sleeved with mutually meshing bevel gears 602. In this way, through the drive of the servo motor 601, the shaft rod 5 can be driven to rotate through the two bevel gears 602, thereby driving the inner frame 3 and the fan 4 to flip, and the flipping of the fan 4 means that it can be switched to an exhaust effect or a suction effect.

[0023] For the bearing mentioned above, specifically, the outer ring of the bearing is fixedly connected to the inner wall of the outer frame 1 or the inner wall of the partition 2 , and the inner ring thereof is interference fit with the shaft rod 5 .

[0024] In addition, if Figure 4 As shown, the front and rear ends of the outer frame 1 are connected to the dustproof net 7 through a connecting mechanism, and the dustproof net 7 can prevent dust from entering the fan 4 and the servo motor 601. The connecting mechanism can be a snap-fitting column 8 connected to the four corners of the inner side of the dustproof net 7; at the same time, snap-fitting holes 9 for snapping with the snap-fitting column 8 are provided at the four corners of the front and rear ends of the outer frame 1, and the snap-fitting column 8 is an elastic column, and the diameter of the elastic column is slightly larger than the diameter of the snap-fitting hole 9, so that it can be elastically inserted into the snap-fitting hole 9. In addition, the connecting mechanism can also be a magnetic sheet connected to the four corners of the inner side of the dustproof net 7; at the same time, the outer frame 1 is a metal frame, so that the dustproof net 7 can be adsorbed on the metal frame through the magnetic sheet.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A coal mine ventilation auxiliary tool, comprising a main component and a conversion component, characterized in that: The main body component comprises an outer frame (1), a partition (2) is installed in the outer frame (1) to divide the interior of the outer frame into a large area and a small area, an inner frame (3) is arranged in the large area, and a plurality of fans (4) are installed in the inner frame (3); The conversion component comprises a transverse shaft (5) fixedly connected at both ends of the inner frame (3), wherein one shaft (5) is connected to the inner wall of the outer frame (1) via a bearing, and the other shaft (5) passes through the partition (2) via a bearing and extends into the small area; in addition, a driving mechanism (6) for driving the shaft (5) to flip is provided in the small area.

2. The coal mine ventilation auxiliary tool according to claim 1, characterized in that: The driving mechanism (6) comprises a servo motor (601) installed in a small area, and the output shaft of the servo motor (601) and the outer peripheral side of the corresponding shaft rod (5) are both fixedly sleeved with mutually meshing bevel gears (602).

3. The coal mine ventilation auxiliary tool according to claim 1, characterized in that: The outer ring of the bearing is fixedly connected to the inner wall of the outer frame (1) or the inner wall of the partition (2), and the inner ring thereof is interference fit with the shaft rod (5).

4. The coal mine ventilation auxiliary tool according to claim 2, characterized in that: The front and rear ends of the outer frame (1) are both connected to a dustproof net (7) via a connecting mechanism. The dustproof net (7) can prevent dust from entering the fan (4) and can also prevent dust from entering the servo motor (601).

5. The coal mine ventilation auxiliary tool according to claim 4, characterized in that: The connection mechanism is a snap-fitting column (8) connected to the four inner corners of the dustproof net (7); at the same time, snap-fitting holes (9) for snapping with the snap-fitting column (8) are provided at the four front and rear corners of the outer frame (1).

6. The coal mine ventilation auxiliary tool according to claim 5, characterized in that: The engaging column (8) is an elastic column, and the diameter of the elastic column is slightly larger than the diameter of the engaging hole (9).

7. The coal mine ventilation auxiliary tool according to claim 4, characterized in that: The connection mechanism is a magnetic sheet connected to the four inner corners of the dustproof net (7); at the same time, the outer frame (1) is a metal frame, so that the dustproof net (7) can be adsorbed on the metal frame through the magnetic sheet.

Images