Adjustable ventilation device for coal mine

Abstract

The utility model discloses an adjustable ventilation device for a coal mine, which relates to the technical field of coal mine ventilation devices and comprises a fan body, a ventilation pipeline is detachably mounted at one end of the fan body, a fixing frame is detachably mounted at one end of the ventilation pipeline, and a connecting pipeline is rotatably connected into one end of the ventilation pipeline. A rotating disc is detachably installed at one end of the connecting pipeline, limiting grooves are symmetrically formed in one end of the rotating disc, limiting plates are slidably connected into the limiting grooves formed in the rotating disc, a sliding block is detachably installed on one side of each limiting plate, a push rod is detachably installed on one side of each sliding block, and an elastic rubber sheet abuts against one end of each push rod. A sliding groove is formed in one side of the fixing frame, and one side of the inner wall of the sliding groove formed in the fixing frame and one side of the elastic rubber sheet are detachably installed. According to the adjustable ventilation device for the coal mine, the rotating disc is arranged to drive the connecting pipeline to rotate in the ventilation pipeline, and compared with a telescopic rod, the adjustable height is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine ventilation devices, in particular to an adjustable ventilation device used in coal mines. Background Art

[0002] Coal mine ventilation equipment is used to input fresh air into the mine to increase the oxygen concentration in order to dilute and remove toxic and harmful gases and dust in the mine. The basic tasks of coal mine ventilation equipment are: to supply enough fresh air underground to meet the oxygen needs of personnel; to dilute harmful gases and dust underground to ensure safe production; to regulate the underground climate and create a good working environment.

[0003] The air outlet of the existing coal mine ventilation device usually adopts a telescopic rod to adjust the air outlet height. The adjustment of the telescopic rod is not stable enough. In addition, the air guide plate of the air outlet of the existing coal mine ventilation device is not easy to fix after adjustment. After adjustment, it is easy to rotate due to the vibration of the air outlet, which brings certain adverse effects to people's use process. In order to solve the shortcomings of the existing technology, we propose an adjustable ventilation device for coal mines. Utility Model Content

[0004] The main purpose of the utility model is to provide an adjustable ventilation device for coal mines, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The ventilator is a device for rotating the fan shaft so that the fan shaft can move freely, and the ventilator is a device for rotating the fan shaft so that the fan shaft can move freely. The ventilator is a device for rotating the fan shaft so that the fan shaft can move freely. The ventilator is a device for rotating the fan shaft so that the fan shaft can move freely. A sliding groove is provided on the side, and one side of the inner wall of the sliding groove provided on the fixed frame and one side of the elastic rubber sheet can be detachably installed. The inside of the fixed frame is rotatably connected to the outside of the turntable. A vent is provided on one side of the turntable, and one side of the inner wall of the vent provided on the turntable is evenly rotatably connected to multiple groups of baffles. Through holes are provided on one side of the baffles, and a movable rod is movably passed through the through hole provided on the baffle. Multiple groups of limit blocks are symmetrically and evenly detachably installed on the outside of the movable rod. Adjustment screws are detachably installed on both ends of the movable rod, and a fastening nut is threadedly connected to the outside of one end of the adjusting screw.

[0007] Preferably, the interior of the sliding groove provided in the fixing frame is slidably connected to the exterior of the sliding block, and a push plate is detachably mounted on one side of the sliding block.

[0008] Preferably, a fixing plate is symmetrically and detachably installed on the inner wall of the ventilation opening of the turntable, one side of the fixing plate movably penetrates one end of the adjusting screw rod, and one side of the fixing plate abuts against one end of the fastening nut.

[0009] Preferably, a handle is detachably mounted on one side of the inner wall of the ventilation opening of the turntable.

[0010] Preferably, one side of the limiting block abuts against one side of the baffle, and the diameter of the through hole formed in the baffle is two-thirds of the width of the limiting block.

[0011] Preferably, the interior of the fan body is connected to one end of the ventilation duct, the one end of the ventilation duct is connected to one end of the connecting duct, and the one end of the connecting duct is connected to the interior of the turntable.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. In the utility model, a turntable is provided to drive the connecting pipe to rotate in the ventilation duct, thereby switching the height of the air outlet of the air delivered by the fan body through the ventilation duct and the connecting pipe. When the air is cold, the turntable drives the connecting pipe to rotate in the ventilation duct to a high position to discharge air, and the cold air sinks. When the air is warm, the turntable drives the connecting pipe to rotate to a low position to discharge air, and the warm air rises, thereby achieving a better ventilation effect. Moreover, the height adjustment of the air outlet by rotation is more stable than the height adjustment by a telescopic rod.

[0014] 2. In the utility model, the movable rod driven by the setting adjusting screw drives the limit block to drive the baffle to move up and down, so that the guiding direction of the baffle in the vent opened by the turntable can be conveniently adjusted. The adjustment structure is simple and convenient for the staff to operate. After adjustment, the fastening nuts on the adjusting screws symmetrically installed at both ends of the movable rod are locked on the fixed plate to fix the adjusted baffle, and the baffle guides the air outlet more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the overall split structure of the utility model;

[0017] Figure 3 yes Figure 2 Enlarged view of area A in the middle;

[0018] Figure 4 yes Figure 2 Enlarged view of area B.

[0019] In the figure: 1. Fan body; 2. Ventilation duct; 3. Fixed frame; 4. Connecting pipe; 5. Turntable; 6. Limit plate; 7. Slider; 8. Push rod; 9. Elastic rubber sheet; 10. Baffle; 11. Movable rod; 12. Limit block; 13. Adjusting screw; 14. Fastening nut; 15. Push plate; 16. Fixed plate; 17. Handle. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] Example 1, as Figure 1-Figure 3 As shown, an adjustable ventilation device for coal mines is shown, which sends the air delivered by the fan main body 1 into the connecting pipe 4 through the ventilation duct 2, and then discharges the air through the ventilation opening opened by the turntable 5 connected to the connecting pipe 4. When the fan main body 1 is used to deliver cold air on a daily basis, the turntable 5 drives the baffle 10 to be located in the upper position inside the fixed frame 3, and the cold air delivered by the fan main body 1 is discharged through the ventilation opening of the turntable 5 located above the fixed frame 3. When the fan main body 1 is used to deliver hot air, the push plate 15 is pushed, and the push plate 15 drives the slider 7 to slide in the slide groove opened in the fixed frame 3, driving the push rod 8 to push the elastic rubber sheet 9. At the same time, the slider 7 drives the limit plate 6 to slide out of the limit groove opened in the turntable 5, and the limit plate 6 no longer limits the turntable. 5, pull the handle 17 to drive the turntable 5 to rotate in the fixed frame 3, and the turntable 5 drives the connecting pipe 4 to rotate in the ventilation duct 2. At the same time, the turntable 5 drives the baffle 10 to rotate to the lower position in the fixed frame 3, and then release the push plate 15. The push rod 8 returns to its original position under the elastic force of the elastic rubber sheet 9. The push rod 8 drives the slider 7 to drive the limit plate 6 to return to its original position. The limit plate 6 enters the limit groove symmetrically opened on the turntable 5 after rotating 180 degrees. The limit plate 6 is used to limit the turntable 5 again to prevent the turntable 5 from rotating in the fixed frame 3. At this time, the warm air delivered by the fan body 1 through the ventilation duct 2 and the connecting pipe 4 is discharged from the vent of the turntable 5 located at the bottom of the fixed frame 3, completing the adjustment of the air outlet height.

[0022] Example 2, as Figure 2 and Figure 4As shown, an adjustable ventilation device for coal mines, when the vents opened by the turntable 5 are used to discharge air, by loosening the fastening nuts 14 on the adjusting screw rods 13 symmetrically installed at both ends of the movable rod 11, the fastening nuts 14 no longer abut against the upper limit movable rod 11 on the fixed plate 16, pulling the adjusting screw rod 13 drives the movable rod 11 to drive the limit block 12 to drive the baffle 10 to rotate in the vents opened by the turntable 5, and adjusting the air outlet direction in the vents opened by the turntable 5 guided by the baffle 10. After the inclination angle of the baffle 10 is adjusted, the fastening nuts 14 are tightened, and the fastening nuts 14 are used to lock the adjusting screw rod 13 on the fixed plate 16, so that the adjusting screw rod 13 fixes the movable rod 11, fixes the limit block 12, and fixes the angle of the baffle 10 after adjustment at this time, and the adjustment of the air outlet angle of the turntable 5 is completed by adjusting the baffle 10.

[0023] It should be noted that the present invention is an adjustable ventilation device for coal mines. When in use, after loosening the fastening nut 14, the adjusting screw 13 is pushed to drive the movable rod 11 to drive the limit block 12 to move up and down in the ventilation opening opened by the turntable 5. The limit block 12 is limited outside the through hole of the baffle 10 and pushes the baffle 10 to rotate in the ventilation opening opened by the turntable 5 to adjust the inclination angle. The baffle 10 is used to guide the change of the air outlet angle at the ventilation opening of the turntable 5. After the adjustment is completed, the fastening nut 14 is tightened to fix the position of the adjusting screw 13 on the fixed plate 16 at this time. The adjusting screw 13 drives the adjusted movable rod 11 to drive the limit block 12, so that the limit block 12 drives the baffle 10 to fix the position of the baffle 10 at this time, completing the adjustment of the angle of the baffle 10.

[0024] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable ventilation device for a coal mine, comprising a fan body (1), characterized in that: A ventilation duct (2) is detachably mounted on one end of the fan body (1), a fixing frame (3) is detachably mounted on one end of the ventilation duct (2), a connecting duct (4) is rotatably connected to one end of the ventilation duct (2), a turntable (5) is detachably mounted on one end of the connecting duct (4), a limiting groove is symmetrically provided at one end of the turntable (5), a limiting plate (6) is slidably connected to the limiting groove provided in the turntable (5), a slider (7) is detachably mounted on one side of the limiting plate (6), a push rod (8) is detachably mounted on one side of the slider (7), one end of the push rod (8) is in contact with an elastic rubber sheet (9), a sliding groove is provided on one side of the fixing frame (3), and the fixing frame (3) is symmetrically provided with a limiting groove. ) is detachably mounted on one side of the inner wall of the slide groove and the elastic rubber sheet (9); the interior of the fixed frame (3) is rotatably connected to the outer side of the turntable (5); a vent is provided on one side of the turntable (5); a plurality of baffles (10) are evenly rotatably connected on one side of the inner wall of the vent provided on the turntable (5); a through hole is provided on one side of the baffle (10); a movable rod (11) is movably passed through the through hole provided on the baffle (10); a plurality of limit blocks (12) are symmetrically and evenly detachably mounted on the outer side of the movable rod (11); an adjusting screw rod (13) is detachably mounted on both ends of the movable rod (11); a fastening nut (14) is threadedly connected to the outer side of one end of the adjusting screw rod (13).

2. The adjustable ventilation device for coal mines according to claim 1, characterized in that: The interior of the sliding groove provided in the fixed frame (3) is slidably connected to the exterior of the slider (7), and a push plate (15) is detachably mounted on one side of the slider (7).

3. The adjustable ventilation device for coal mines according to claim 1, characterized in that: A fixing plate (16) is symmetrically and detachably mounted on the inner wall of the ventilation opening of the turntable (5), one side of the fixing plate (16) movably penetrates one end of the adjusting screw rod (13), and one side of the fixing plate (16) abuts against one end of the fastening nut (14).

4. The adjustable ventilation device for coal mines according to claim 1, characterized in that: A handle (17) is detachably mounted on one side of the inner wall of the vent opening formed on the rotating disk (5).

5. The adjustable ventilation device for coal mines according to claim 1, characterized in that: One side of the limiting block (12) abuts against one side of the baffle (10), and the diameter of the through hole provided in the baffle (10) is two-thirds of the width of the limiting block (12).

6. The adjustable ventilation device for coal mines according to claim 1, characterized in that: The interior of the fan body (1) is connected to one end of the ventilation duct (2), one end of the ventilation duct (2) is connected to one end of the connecting duct (4), and one end of the connecting duct (4) is connected to the interior of the turntable (5).

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