Ventilation device for gas control

Abstract

The utility model discloses a ventilation device for gas control, which relates to the technical field of gas control and comprises a fixing plate fixed on the top wall of a mine, a mounting plate fixed on the lower plate surface of the fixing plate through two vertical rods, a gas monitor mounted on the lower plate surface of the mounting plate, and a suction fan mounted on the upper plate surface of the mounting plate. An air suction pipe of the suction fan is connected with a soft guide pipe, the free end of the soft guide pipe is connected with an air suction mechanism, the air suction mechanism comprises an inner cylindrical shell, the upper end of the inner cylindrical shell is communicated with the free end of the soft guide pipe, a plurality of inner air openings are formed in the periphery of the inner cylindrical shell, and an adjusting structure is arranged outside the inner cylindrical shell and comprises an outer cylindrical shell, and the upper end and the lower end of the outer cylindrical shell are open. The inner wall of the outer cylindrical shell is in threaded fit with the outer wall of the inner cylindrical shell, and an outer air opening is formed in the outer surface of the outer cylindrical shell. When the air suction mechanism is used, the fixed plate, the mounting plate and the suction fan are not detached, the air suction mechanism can be flexibly used, and the air direction and the air volume can be adjusted by rotating the outer cylindrical shell.

Description

Technical Field

[0001] The utility model relates to the technical field of gas prevention and control, in particular to a ventilation device for gas prevention and control. Background Art

[0002] In the prior art, ventilation devices are added to coal mines to prevent and control gas. After searching, it is found that a Chinese patent (grant number: CN216198252U) discloses a ventilation device for coal mine gas prevention and control. When used, the air containing gas can be extracted, thereby reducing the gas concentration in the mine, avoiding poisoning of workers and even explosions in gas mines, ensuring the personal safety of workers, and no manual operation is required by workers, making the operation easier.

[0003] However, when the above-mentioned public technology is used, the device is fixed in the mine, and it is not able to effectively ventilate and prevent gas at a designated location. It is not flexible enough, and therefore needs to be improved. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a ventilation device for gas prevention and control, which solves the problem that the prior ventilation devices are not flexible enough in use.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A ventilation device for gas prevention and control comprises a fixing plate fixed on the top wall of a mine, a mounting plate fixed on the lower surface of the fixing plate through two symmetrically arranged vertical rods, a gas monitor is installed on the lower surface of the mounting plate, and a suction fan is installed on the upper surface of the mounting plate.

[0007] Compared with the prior art, the most important difference in design of the present invention is that the exhaust pipe of the suction fan is connected to a soft guide tube, the free end of the soft guide tube is connected to a suction mechanism, the suction mechanism includes an inner cylindrical shell, the upper end of the inner cylindrical shell is connected to the free end of the soft guide tube, a plurality of inner air outlets arranged in a circular array are opened around the inner cylindrical shell, and an adjustment structure is arranged outside the inner cylindrical shell.

[0008] In order to adjust the wind direction and air volume, the adjustment structure includes an outer cylindrical shell, the upper and lower ends of the outer cylindrical shell are both opened, the inner wall of the outer cylindrical shell is threadedly matched with the outer wall of the inner cylindrical shell, and an outer air outlet is opened on the outer surface of the outer cylindrical shell.

[0009] In order to facilitate the storage of excess soft catheters, a cover is clamped on the upper end of the outer cylindrical shell, a tube hole is opened in the center of the upper surface of the cover, the free end of the soft catheter is connected to the upper end of the inner cylindrical shell through the tube hole, and a distance is left between the cover and the inner cylindrical shell.

[0010] In order to facilitate the installation of the air suction mechanism on the mine wall, the outer cylindrical shell is provided with an L-shaped hanging plate near its upper end, the scraper support feet are fixed on the surface of the outer cylindrical shell, and the side plates are provided with horizontal through holes.

[0011] In order to facilitate the rotation of the inner cylindrical shell from the lower end, the lower end of the inner cylindrical shell is provided with two symmetrically arranged notches.

[0012] Compared with the prior art, the utility model has the following beneficial effects: when the air suction mechanism is used, it can be used flexibly without disassembling the fixing plate, the mounting plate and the air suction fan, and the wind direction and the air volume can be adjusted by rotating the outer cylindrical shell. The structure is simple and the practicability is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a partial cross-sectional view of the main view of the utility model;

[0014] Figure 2 The utility model is a three-dimensional suction mechanism Figure 1 ;

[0015] Figure 3 The utility model is a three-dimensional suction mechanism Figure 2 ;

[0016] Figure 4 It is an exploded view of the air suction mechanism of the utility model.

[0017] Figure numerals: 1. fixing plate; 2. vertical rod; 3. mounting plate; 4. gas monitor; 5. suction fan; 6. flexible duct; 7. inner cylindrical shell; 7-1. inner air outlet; 7-2. notch; 8. outer cylindrical shell; 8-1. outer air outlet; 9. cover; 10. hanging plate. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] like Figure 1-2 As shown, the utility model provides a ventilation device for gas prevention and control, including a fixed plate 1 fixed on the top wall of the mine, a mounting plate 3 is fixed to the lower surface of the fixed plate 1 through two symmetrically arranged vertical rods 2, a gas monitor 4 is installed on the lower surface of the mounting plate 3, and a suction fan 5 is installed on the upper surface of the mounting plate 3. The above structures are all prior arts, and their working principles are no longer repeated in the utility model.

[0020] like Figure 2-3As shown, the main difference between the utility model and the prior art is that the exhaust pipe of the suction fan 5 is connected to the soft tube 6, the free end of the soft tube 6 is connected to the suction fan 5 mechanism, the suction fan 5 mechanism includes an inner cylindrical shell 7, the upper end of the inner cylindrical shell 7 is connected to the free end of the soft tube 6, a plurality of inner air outlets 7-1 arranged in a circular array are opened around the inner cylindrical shell 7, and an adjustment structure is arranged outside the inner cylindrical shell 7.

[0021] like Figure 3-4 As shown, in order to adjust the wind direction and air volume, the adjustment structure includes an outer cylindrical shell 8, the upper and lower ends of the outer cylindrical shell 8 are opened, the inner wall of the outer cylindrical shell 8 is threadedly matched with the outer wall of the inner cylindrical shell 7, and an outer air outlet 8-1 is opened on the outer surface of the outer cylindrical shell 8.

[0022] like Figure 1 As shown, in order to facilitate the storage of excess soft conduit 6, a cover 9 is clamped on the upper end of the outer cylindrical shell 8, a tube hole is opened in the center of the upper surface of the cover 9, and the free end of the soft conduit 6 is connected to the upper end of the inner cylindrical shell 7 through the tube hole, and a distance is left between the cover 9 and the inner cylindrical shell 7.

[0023] like Figure 3 As shown, in order to facilitate the installation of the suction fan 5 on the mine wall, an L-shaped hanging plate 10 is provided near the upper end of the outer cylindrical shell 8, the scraper support feet are fixed on the surface of the outer cylindrical shell 8, and the side plates are provided with horizontal through holes. In order to facilitate the rotation of the inner cylindrical shell 7 from the lower end, the lower end of the inner cylindrical shell 7 is provided with two symmetrically arranged notches 7-2.

[0024] The working principle of the utility model is described in detail below: according to the required position of the suction fan 5, the cover 9 is opened, and the soft tube 6 can slide in the tube hole, so that the remaining soft tube 6 can be rolled up and placed on the upper end of the inner cylindrical shell 7, and then the cover 9 is covered on the upper end of the outer cylindrical shell 8 to achieve the storage of the remaining soft tube 6. After completion, the inner cylindrical shell 7 can be rotated by pinching the two notches 7-2 with the hand to make the inner cylindrical shell 7 and the outer cylindrical shell 8 rotate relative to each other, and the air outlet is determined by the overlap between the outer air outlet 8-1 and the inner air outlet 7-1. The amount can be measured by rotating the inner cylindrical shell 7, and the remaining inner air outlets 7-1 can be blocked to determine the wind direction. After the inner cylindrical shell 7 and the outer cylindrical shell 8 are rotated, they can be locked after rotation. After the adjustment is completed, the suction fan 5 can be directly placed on the ground of the mine, or a positioning pin can be embedded in the wall of the mine, and then hung on the positioning pin through the through hole on the hanging plate 10. The suction fan 5 is electrically connected to the external power supply. After starting, the gas containing gas is extracted through the external air outlet 8-1, the internal air outlet 7-1, the inside of the inner cylindrical shell 7, the soft duct 6, and the suction fan 5.

[0025] Finally, the most important contribution of the utility model is that when the suction fan 5 is used, it can be used flexibly without disassembling the fixing plate 1, the mounting plate 3 and the suction fan 5, and the wind direction and the wind volume can be adjusted by rotating the outer cylindrical shell 8. The structure is simple and the practicality is higher.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ventilation device for gas prevention and control, comprising a fixing plate fixed on the top wall of a mine, a mounting plate fixed to the lower surface of the fixing plate through two symmetrically arranged vertical rods, a gas monitor installed on the lower surface of the mounting plate, and a suction fan installed on the upper surface of the mounting plate, characterized in that: The air suction pipe of the suction fan is connected with a soft guide tube, and the free end of the soft guide tube is connected with an air suction mechanism.

2. A ventilation device for gas prevention and control according to claim 1, characterized in that: The air suction mechanism comprises an inner cylindrical shell, the upper end of which is connected to the free end of the soft conduit, a plurality of inner air ports arranged in a circular array are provided around the inner cylindrical shell, and an adjustment structure is arranged outside the inner cylindrical shell.

3. A ventilation device for gas prevention and control according to claim 2, characterized in that: The regulating structure comprises an outer cylindrical shell, the upper and lower ends of the outer cylindrical shell are both opened, the inner wall of the outer cylindrical shell is threadedly matched with the outer wall of the inner cylindrical shell, and an outer air outlet is opened on the outer surface of the outer cylindrical shell.

4. A ventilation device for gas prevention and control according to claim 3, characterized in that: A sealing cover is clamped at the upper end of the outer cylindrical shell, a tube hole is opened at the center of the upper surface of the sealing cover, the free end of the soft conduit is connected to the upper end of the inner cylindrical shell through the tube hole, and a distance is left between the sealing cover and the inner cylindrical shell.

5. A ventilation device for gas prevention and control according to claim 4, characterized in that: The outer cylindrical shell is provided with an L-shaped hanging plate near its upper end, the scraper support legs are fixed on the surface of the outer cylindrical shell, and the side plates are provided with horizontal through holes.

6. A ventilation device for gas prevention and control according to claim 4, characterized in that: The lower end of the inner cylindrical shell is provided with two symmetrically arranged notches.

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