Pneumatic ventilation structure of underground passage

Abstract

The utility model provides an underground passage pneumatic ventilation structure which comprises a fixing plate, a blocking mechanism is arranged on the inner wall of the fixing plate, the blocking mechanism comprises an upper movable baffle, a lower movable baffle is movably connected to the lower portion of the upper movable baffle, a clamping column is fixedly connected to the front face of the upper movable baffle, and the clamping column is fixedly connected to the lower portion of the upper movable baffle. Compared with the prior art, the air blowing device has the advantages that internal connection is conducted through the blocking mechanism, the blocking mechanism is fixed in the fixing plate during operation, the upper movable baffle and the lower movable baffle are made to rotate in a matched mode during air blowing, the blocking mechanism is fixed to the inner portion of the fixing plate, and the blocking mechanism is fixed to the inner portion of the fixing plate. When the wind power stops, the wind power generator is bent and opened through blowing of the wind power, and the upper baffle and the lower baffle are rebounded when the wind power stops, so that the wind power generator is in a vertical placement state for blocking use of gas, external air can be prevented from flowing back, and back flushing of smell is avoided.

Description

Technical Field

[0001] The utility model relates to a pneumatic ventilation structure for an underground passage, belonging to the field of ventilation equipment. Background Art

[0002] The ventilation duct is a hollow pipe used for ventilation, mostly round or square. The plates, profiles and other main finished materials used in the production and installation of the ventilation duct are conducive to ventilation and exhaust, and the flow and replacement of air.

[0003] In the prior art, when the ventilation duct is discharging gas, when the fan stops rotating, the external gas will flow back into the interior of the duct, dispersing the odor inside the duct, causing the generation of odor, which is not conducive to ventilation. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide an underground passage pneumatic ventilation structure to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned object, the utility model is realized by the following technical scheme: an underground passage pneumatic ventilation structure, comprising a fixed plate, the inner wall of the fixed plate is provided with a blocking mechanism, the blocking mechanism comprises an upper movable baffle, the lower part of the upper movable baffle is movably connected to a lower movable baffle;

[0006] A locking column is fixedly connected to the front side of the upper movable baffle, and a winding spring is arranged on the inner wall of the locking column.

[0007] Preferably, the upper movable baffle is movably sleeved on the outer wall of the lower movable baffle, and the engaging columns are respectively arranged at the front and rear ends of the upper movable baffle.

[0008] Preferably, an opening mechanism is provided inside the lower part of the fixing plate, a filtering mechanism is tightly fitted on the outer wall of the opening mechanism, and a square frame is fixedly connected to the outer wall of the fixing plate.

[0009] Preferably, the filtering mechanism is movably engaged with the inner wall of the fixing plate, and the outer wall surface of the filtering mechanism is tightly fitted with the outer wall surface of the opening mechanism.

[0010] Preferably, the opening mechanism comprises a long plate, the interior of the long plate is movably connected with a movable column, the outer wall of the long plate is provided with a concave groove, and the interior of the long plate is penetrated by a fixed column.

[0011] Preferably, the movable column is movably engaged with the inner wall of the long row plate, and the central axis of the long row plate coincides with the central axis of the fixed column.

[0012] Preferably, the filtering mechanism comprises a frame plate, one end of the frame plate is fixedly connected to a sliding plate, and the inner wall of the frame plate is fixedly connected to a filter plate.

[0013] Preferably, the central axis of the frame plate coincides with the central axis of the filter plate, and the sliding plates are respectively distributed at the front and rear ends of the frame plate.

[0014] Beneficial effects of the utility model:

[0015] Compared with the prior art, the pneumatic ventilation structure of the underground passage is internally connected through a blocking mechanism. During operation, the blocking mechanism is fixed inside the fixed plate. When blowing, the upper movable baffle and the lower movable baffle are rotated in coordination, and are bent and opened by the blowing of wind. The upper and lower baffles are rebounded by the internal winding spring when the wind stops, so that they are placed in a vertical state for blocking the gas, which can prevent the backflow of external air and the recoil of odor.

[0016] Compared with the prior art, the pneumatic ventilation structure of the underground passage is opened by operating the opening mechanism. When in use, the fixed column can be rotated to loosen the long plate, and then the hand can be passed through the inside of the concave groove to pull the long plate to rotate and open it between the movable column and the fixed plate, and then the internal filter mechanism can be taken out for cleaning and replacement operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0018] Figure 1 This is a schematic diagram of the main view of a pneumatic ventilation structure for an underground passage according to the utility model;

[0019] Figure 2 This is a schematic diagram of the internal section of a pneumatic ventilation structure for an underground passage according to the utility model;

[0020] Figure 3 This is a schematic diagram of a blocking mechanism in a pneumatic ventilation structure for an underground passage according to the utility model;

[0021] Figure 4 This is a schematic diagram of an opening mechanism in a pneumatic ventilation structure for an underground passage according to the utility model;

[0022] Figure 5 This is a schematic diagram of a filtering mechanism in a pneumatic ventilation structure for an underground passage according to the utility model;

[0023] In the figure: 1. fixed plate; 2. blocking mechanism; 201. upper movable baffle; 202. locking column; 203. lower movable baffle; 3. winding spring; 4. opening mechanism; 401. long plate; 402. movable column; 403. concave groove; 404. fixed column; 5. filtering mechanism; 501. frame plate; 502. filter plate; 503. sliding plate; 6. square frame. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] Embodiment 1

[0026] As attached Figures 1 to 5 The pneumatic ventilation structure of an underground passage shown in the figure comprises a fixed plate 1, the inner wall of which is provided with a blocking mechanism 2, the blocking mechanism 2 comprises an upper movable baffle 201, and a lower movable baffle 203 is movably connected to the lower part of the upper movable baffle 201;

[0027] The front of the upper movable baffle 201 is fixedly connected with a locking column 202, the inner wall of the locking column 202 is provided with a winding spring 3, the upper movable baffle 201 is movably sleeved on the outer wall of the lower movable baffle 203, and the locking column 202 is respectively provided at the front and rear ends of the upper movable baffle 201.

[0028] Among them: when operating the pneumatic ventilation structure of the underground passage, the internal blocking mechanism 2 can be connected for use. When the ventilation and blowing are stopped, the internal upper movable baffle 201 and the lower movable baffle 203 are rebounded by the internal winding spring 3 to reset them to form a vertical square plate to block the inside of the fixed plate 1. When blowing, the upper and lower baffles are subjected to impact force and are opened horizontally for connection and use.

[0029] Embodiment 2

[0030] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working methods. Figures 1 to 5 As shown, see the following description for details:

[0031] As a preferred embodiment, an opening mechanism 4 is provided inside the lower part of the fixed plate 1, and a filtering mechanism 5 is closely attached to the outer wall of the opening mechanism 4. A square frame 6 is fixedly connected to the outer wall of the fixed plate 1, and the filtering mechanism 5 is movably engaged with the inner wall of the fixed plate 1, and the outer wall surface of the filtering mechanism 5 is closely attached to the outer wall surface of the opening mechanism 4;

[0032] Furthermore, when the device is in operation, multiple pipelines are connected through the fixed plate 1. When the air is blown, the gas can be filtered through the filter mechanism 5. At the same time, the impact of wind force opens the blocking mechanism 2 to transport the gas.

[0033] As a preferred embodiment, the opening mechanism 4 includes a long plate 401, the interior of the long plate 401 is movably connected with a movable column 402, the outer wall of the long plate 401 is provided with a concave groove 403, the interior of the long plate 401 is penetrated by a fixed column 404, the movable column 402 is movably engaged with the inner wall of the long plate 401, and the central axis of the long plate 401 and the fixed column 404 coincide with each other;

[0034] Furthermore, when the device is operated, the fixing column 404 can be rotated to separate and open the long row plate 401 and the fixing plate 1 , and then the long row plate 401 can be pulled open through the concave groove 403 to replace the internal filter mechanism 5 .

[0035] As a preferred embodiment, the filter mechanism 5 includes a frame plate 501, one end of the frame plate 501 is fixedly connected to a sliding plate 503, the inner wall of the frame plate 501 is fixedly connected to a filter plate 502, the central axis of the frame plate 501 and the filter plate 502 coincide with each other, and the sliding plates 503 are respectively distributed at the front and rear ends of the frame plate 501;

[0036] Furthermore, during operation, the filter plate 502 connected through the frame plate 501 can be used for filtering gas, and at the same time cooperates with the sliding plates 503 at both ends to be snap-fitted and fixedly connected, so as to be conveniently fixed inside the fixed plate 1 for replacement and disassembly operations.

[0037] The working principle of the utility model is as follows:

[0038] First, when operating the equipment, multiple pipelines are connected through the fixed plate 1. When operating the air blowing, the gas can be filtered through the filter mechanism 5. The filter plate 502 connected through the frame plate 501 can be used for filtering the gas. At the same time, the sliding plates 503 at both ends are engaged and fixedly connected, so as to be fixed inside the fixed plate 1. When disassembling, the fixed column 404 can be rotated to separate and open the long row plate 401 from the fixed plate 1, and then the long row plate 401 is pulled open through the concave groove 403 to replace the internal filter mechanism 5. At the same time, the impact of wind force opens the blocking mechanism 2. When the ventilation and blowing are stopped, the internal upper movable baffle 201 and the lower movable baffle 203 are rebounded by the internal winding spring 3 to reset them to form a vertical square plate to block the inside of the fixed plate 1. When blowing, the upper movable baffle 201 and the lower movable baffle 203 are subjected to the impact force and are opened horizontally for connection and use to transport gas.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An underground passage pneumatic ventilation structure, comprising a fixed plate (1), characterized in that: The inner wall of the fixed plate (1) is provided with a blocking mechanism (2), the blocking mechanism (2) comprising an upper movable baffle (201), and a lower movable baffle (203) is movably connected below the upper movable baffle (201); A locking column (202) is fixedly connected to the front side of the upper movable baffle (201), and a winding spring (3) is provided on the inner wall of the locking column (202).

2. The pneumatic ventilation structure for an underground passage according to claim 1, characterized in that: The upper movable baffle (201) is movably sleeved on the outer wall of the lower movable baffle (203), and the engaging columns (202) are respectively arranged at the front and rear ends of the upper movable baffle (201).

3. The pneumatic ventilation structure for an underground passage according to claim 1, characterized in that: An opening mechanism (4) is provided inside the lower part of the fixed plate (1), a filtering mechanism (5) is tightly fitted to the outer wall of the opening mechanism (4), and a square frame (6) is fixedly connected to the outer wall of the fixed plate (1).

4. The pneumatic ventilation structure for an underground passage according to claim 3, characterized in that: The filtering mechanism (5) is movably engaged with the inner wall of the fixing plate (1), and the outer wall surface of the filtering mechanism (5) is tightly fitted with the outer wall surface of the opening mechanism (4).

5. The pneumatic ventilation structure for an underground passage according to claim 3, characterized in that: The opening mechanism (4) comprises a long plate (401), wherein the interior of the long plate (401) is movably connected with a movable column (402), an outer wall of the long plate (401) is provided with a concave groove (403), and a fixed column (404) penetrates the interior of the long plate (401).

6. The pneumatic ventilation structure for an underground passage according to claim 5, characterized in that: The movable column (402) is movably engaged with the inner wall of the long plate (401), and the central axis of the long plate (401) and the fixed column (404) are coincident.

7. The pneumatic ventilation structure for an underground passage according to claim 3, characterized in that: The filtering mechanism (5) comprises a frame plate (501), one end of the frame plate (501) is fixedly connected to a sliding plate (503), and the inner wall of the frame plate (501) is fixedly connected to a filter plate (502).

8. The pneumatic ventilation structure for an underground passage according to claim 7, characterized in that: The central axis of the frame plate (501) and the filter plate (502) coincide with each other, and the sliding plates (503) are respectively distributed at the front and rear ends of the frame plate (501).

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