Safe ventilation device

Abstract

The utility model belongs to the field of ventilation equipment, particularly relates to a safe ventilation device, and aims to solve the problems that although foreign matters in the air can be filtered through active carbon, the active carbon can be saturated after being used for a long time, the filtering effect can be reduced, and an active carbon layer is fixed at the inner end of an air port. In order to solve the problems that when equipment is not used, replacement is inconvenient when the equipment needs to be replaced, and meanwhile when the equipment is not used, an air pipe cannot filter dust in air, and the dust easily enters a machine body from the air pipe, the following scheme is provided. The air purifier comprises a machine body, an activated carbon filter screen used for filtering peculiar smells in air and two first filter screens used for filtering dust, a door body is hinged to one side of the machine body through hinges, the activated carbon filter screen and the two first filter screens can be fixed through a fixing mechanism, replacement is convenient, the filtering effect is improved, and safety is improved; and dust in the air is filtered and intercepted through the filtering mechanism and is prevented from entering the machine body.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation equipment, in particular to a safety ventilation device. Background Art

[0002] With the continuous development of mine safety equipment technology, various mine safety equipment emerges in an endless stream. The installation structures of different mine safety equipment are different. Mine ventilation equipment, as a device to realize the exchange of air inside the mine and the outside air, brings convenience to users, but there are also many areas that can be optimized.

[0003] After searching, the patent with announcement number CN219452152U discloses a ventilation device with three protections, including a main body, a ventilation mechanism and a mounting mechanism, wherein the ventilation mechanism is located inside the main body, and the mounting mechanism is located at the rear end of the main body. The main body includes a body, an observation window, an air outlet and a fixing plate, wherein the observation window is fixedly arranged at the left end of the body, the air outlet is fixedly arranged at the front end of the body, and the fixing plate is fixedly arranged at the rear of the body. The ventilation device with three protections, through the installation of the ventilation mechanism, the movable connection between the rotating shaft and the ventilation fan, the motor is started, the rotating shaft is driven to rotate, the rotating shaft rotates and the ventilation fan rotates, and the air inside the mine and the outside air are communicated through the air outlet and the air duct. The fixed arrangement of the activated carbon layer and the anti-gas layer can filter out some odors or gases in the air, effectively improving the practicality of the equipment.

[0004] The technical solution has the following problems:

[0005] Although foreign matter in the air can be filtered through activated carbon, it will become saturated with adsorption after long-term use, which will reduce the filtering effect. Since the activated carbon layer is fixed to the inner end of the air outlet, it is not convenient to replace it when it needs to be replaced. At the same time, when the equipment is not in use, the air duct cannot filter the dust in the air, and dust can easily enter the inside of the machine body through the air duct. Utility Model Content

[0006] The purpose of the utility model is to solve the problems in the prior art that although foreign matter in the air can be filtered by activated carbon, the activated carbon will be saturated with adsorption after long-term use, which will reduce the filtering effect; since the activated carbon layer is fixed to the inner end of the air outlet, it is not convenient to replace it when it is needed; at the same time, when the equipment is not in use, the air duct cannot filter the dust in the air, and the dust can easily enter the interior of the machine body through the air duct, and a safe ventilation device is proposed.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A safety ventilation device comprises a body, an activated carbon filter for filtering odor in the air and two first filter screens for filtering dust, a door body is hingedly connected to one side of the body by a hinge, a handle is fixedly arranged on one side of the door body, a door lock is arranged on the door body, a reinforcement plate is fixedly arranged on one side of the body, a mounting plate for facilitating the installation of the body is fixedly arranged on one side of the reinforcement plate, an air outlet is opened on one side of the body, an air outlet pipe is fixedly arranged on the inner wall of the air outlet, mesh plates are fixedly arranged on the inner walls at both ends of the air outlet pipe, a plurality of circular holes are opened on the mesh plates, two air ducts are fixedly arranged on the top of the body and are connected, an L-shaped pipe is fixedly arranged on the inner wall of the top of the body, the air duct is connected to the L-shaped pipe, a fan is fixedly arranged on the inner wall of one end of the L-shaped pipe, three slots are opened on the inner wall of the air outlet pipe, and the activated carbon filter and the two first filter screens are respectively inserted into the three slots;

[0009] A fixing mechanism, which is arranged on the air outlet pipe and is used to fix the activated carbon filter and the two first filters;

[0010] The filtering mechanism is arranged on the air duct for filtering the position of the air duct.

[0011] In a possible design, the fixing mechanism includes a rotating plate, a first short plate, a second short plate and a bolt, two hinges are fixedly provided on one side of the air outlet pipe, one side of the two hinges are fixedly connected to one side of the rotating plate, one side of the first short plate is fixedly connected to one side of the air outlet pipe, one side of the second short plate is fixedly connected to one side of the rotating plate, a through hole is opened on the second short plate, a first threaded hole is opened on the first short plate, and one end of the bolt passes through the through hole and is threadedly connected to the threaded hole.

[0012] In a possible design, the filtering mechanism includes a second filter screen for filtering the air duct, and the second filter screen is arranged at one end of the air duct.

[0013] In a possible design, a torsion bar is welded to the top end of the bolt to facilitate the rotation of the bolt.

[0014] In a possible design, four screws are provided on the second filter screen, insertion holes are provided at the four corners of the second filter screen, second threaded holes are provided at the four corners of one end of the air duct, and one end of the screw passes through the insertion hole and is threadedly connected to the second threaded hole.

[0015] In a possible design, the first filter and the second filter are both made of HEPA filter.

[0016] In the present application, during installation, first insert the activated carbon filter and the two first filters into the three slots of the air outlet pipe, with the activated carbon filter located between the two first filters, and then close the rotating plate. When the bottom of the rotating plate fits the top of the air outlet pipe, take the bolt, and the bottom end of the bolt passes through the through hole of the second short plate. When rotating the twist bar, the rotation of the twist bar drives the rotation of the bolt, so that the bolt and the first threaded hole of the first short plate are threadedly connected, so that the activated carbon filter and the two first filters can be fixed, and it is easy to replace, thereby improving the filtering effect and safety. Then close the door body, lock the door body with the door lock, and take the second filter. Bring the second filter to one end of the air duct, align the jack with the second threaded hole, take the screw, One end of the screw passes through the jack and is threadedly connected to the second threaded hole of the air duct, so that the second filter can be fixed and easy to disassemble, and then the machine body is installed to the required place through the mounting plate (it can be installed by bolts and screws), and the fan is started. The start-up of the fan generates wind, and the air inside the mine and the outside air are communicated through the air vent pipe and the air duct. Some odors in the air can be filtered out by the set activated carbon filter, and dust in the air can be filtered and intercepted by the first filter. When the machine body is not in use, the dust in the air can be filtered and intercepted by the second filter to prevent it from entering the inside of the machine body (of course, when the gas concentration in the coal mine is high, it can also be discharged through the fan). Fan 7 can be selected as a ventilation fan.

[0017] In the utility model, the safety ventilation device is closed by a fixing mechanism, and when the bottom of the rotating plate is in contact with the top of the air outlet pipe, a bolt is taken, and the bottom end of the bolt passes through the through hole of the second short plate, and the twist bar is rotated. The rotation of the twist bar drives the rotation of the bolt, so that the bolt and the first threaded hole of the first short plate are threadedly connected, so that the activated carbon filter and the two first filter screens can be fixed, and it is easy to replace, thereby improving the filtering effect and improving safety;

[0018] In the utility model, the safety ventilation device can filter and intercept dust in the air through the second filter screen when the machine body is not in use, thereby preventing the dust from entering the interior of the machine body;

[0019] The utility model has a reasonable structure, and the activated carbon filter and the two first filter screens can be fixed by a fixing mechanism, and are easy to replace, thereby improving the filtering effect and safety. The dust in the air is filtered and intercepted by the filtering mechanism to prevent it from entering the interior of the machine body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of a safety ventilation device proposed by the utility model;

[0021] Figure 2 This is a side structural schematic diagram of a safety ventilation device proposed by the utility model;

[0022] Figure 3 A schematic diagram of the internal structure of a safety ventilation device proposed by the utility model;

[0023] Figure 4 This is a schematic structural diagram of a safety ventilation device proposed by the utility model in a state where a rotating plate is not installed;

[0024] Figure 5 This is a schematic diagram of the separation structure of the second filter screen and the air duct of a safety ventilation device proposed by the utility model;

[0025] Figure 6 The utility model is a schematic diagram of the internal side structure of a safety ventilation device.

[0026] In the figure: 1. machine body; 2. door body; 3. air duct; 4. mounting plate; 5. air outlet pipe; 6. mesh plate; 7. fan; 8. rotating plate; 9. first short plate; 10. second short plate; 11. bolt; 12. twist bar; 13. activated carbon filter; 14. first filter; 15. second filter; 16. screw. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Embodiment 1

[0029] Reference Figure 1-6 A safety ventilation device, which is used in the field of ventilation equipment, comprises: a machine body 1, an activated carbon filter 13 for filtering odor in the air and two first filters 14 for filtering dust, a door body 2 is hingedly connected to one side of the machine body 1 through a hinge, a handle is fixedly arranged on one side of the door body 2, a door lock is arranged on the door body 2, a reinforcement plate is fixedly arranged on one side of the machine body 1, a mounting plate 4 for facilitating the installation of the machine body 1 is fixedly arranged on one side of the reinforcement plate, and an opening on one side of the machine body 1 An air outlet is provided, an air outlet pipe 5 is fixedly provided on the inner wall of the air outlet, mesh plates 6 are fixedly provided on the inner walls at both ends of the air outlet pipe 5, and a plurality of circular holes are provided on the mesh plates 6, two air ducts 3 are fixedly provided on the top of the machine body 1 and are connected, an L-shaped pipe is fixedly provided on the inner wall of the top of the machine body 1, the air duct 3 is connected to the L-shaped pipe, a fan 7 is fixedly provided on the inner wall of one end of the L-shaped pipe, three slots are provided on the inner wall of the air outlet pipe 5, and an activated carbon filter 13 and two first filters 14 are respectively plugged into the three slots;

[0030] A fixing mechanism, which is arranged on the tuyere pipe 5 and is used to fix the activated carbon filter 13 and the two first filter screens 14;

[0031] The filtering mechanism is arranged on the air duct 3 and is used for filtering the position of the air duct 3 .

[0032] The above technical solution can fix the activated carbon filter 13 and the two first filters 14 through a fixing mechanism, and is easy to replace, thereby improving the filtering effect and safety. The dust in the air is filtered and intercepted through the filtering mechanism to prevent it from entering the interior of the body 1.

[0033] Reference Figure 3 and Figure 4 The fixing mechanism includes a rotating plate 8, a first short plate 9, a second short plate 10 and a bolt 11. Two hinges are fixedly provided on one side of the air outlet pipe 5, one side of the two hinges are fixedly connected to one side of the rotating plate 8, one side of the first short plate 9 is fixedly connected to one side of the air outlet pipe 5, one side of the second short plate 10 is fixedly connected to one side of the rotating plate 8, a through hole is opened on the second short plate 10, and a first threaded hole is opened on the first short plate 9. One end of the bolt 11 passes through the through hole and is threadedly connected to the threaded hole.

[0034] The above technical solution closes the rotating plate 8. When the bottom of the rotating plate 8 is in contact with the top of the air outlet pipe 5, take the bolt 11, and the bottom end of the bolt 11 passes through the through hole of the second short plate 10. When the twist bar 12 is rotated, the rotation of the twist bar 12 drives the rotation of the bolt 11, so that the bolt 11 and the first threaded hole of the first short plate 9 are threadedly connected, so that the activated carbon filter 13 and the two first filters 14 can be fixed, and it is easy to replace, thereby improving the filtering effect and improving safety.

[0035] Reference Figure 5 The filtering mechanism includes a second filter screen 15 for filtering the air duct 3 , and the second filter screen 15 is arranged at one end of the air duct 3 .

[0036] The above technical solution can filter and intercept dust in the air through the second filter 15 when the body 1 is not in use, so as to prevent the dust from entering the interior of the body 1.

[0037] Embodiment 2

[0038] refer to Figure 1-6 , improved on the basis of the first embodiment:

[0039] Reference Figure 3 A torsion bar 12 is welded at the top of the bolt 11 to facilitate the rotation of the bolt 11.

[0040] The above technical solution can facilitate the rotation of the bolt 11 by providing the twist bar 12, so there is no need to use tools.

[0041] Reference Figure 5Four screws 16 are provided on the second filter screen 15, and insertion holes are provided at the four corners of the second filter screen 15. Second threaded holes are provided at the four corners of one end of the air duct 3, and one end of the screw 16 passes through the insertion hole and is threadedly connected with the second threaded hole.

[0042] The above technical solution takes the second filter 15, takes the second filter 15 to one end of the air duct 3, aligns the socket with the second threaded hole, takes the screw 16, and one end of the screw 16 passes through the socket and is threadedly connected to the second threaded hole of the air duct 3, so that the second filter 15 can be fixed and easy to disassemble.

[0043] Reference Figure 4 The first filter 14 and the second filter 15 are both made of HEPA filter.

[0044] In the above technical solution, the first filter 14 and the second filter 15 are both made of HEPA filters, which have good filtering effects and long service life.

[0045] However, as is well known to those skilled in the art, the working principle and wiring method of the fan 7 are commonplace, and are conventional means or common knowledge, and are not described in detail here. Those skilled in the art may make any selections according to their needs or convenience.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A safety ventilation device, It is characterized in that The invention comprises a machine body (1), an activated carbon filter (13) for filtering odor in the air, and two first filter screens (14) for filtering dust, one side of the machine body (1) is hingedly connected to a door body (2) via a hinge, one side of the door body (2) is fixedly provided with a handle, the door body (2) is provided with a door lock, one side of the machine body (1) is fixedly provided with a reinforcement plate, one side of the reinforcement plate is fixedly provided with a mounting plate (4) for facilitating the installation of the machine body (1), one side of the machine body (1) is provided with an air outlet, and the inner wall of the air outlet is fixedly provided with a An air outlet pipe (5), wherein mesh plates (6) are fixedly arranged on the inner walls at both ends of the air outlet pipe (5), and a plurality of circular holes are provided on the mesh plates (6); two air ducts (3) are fixedly arranged on the top of the machine body (1) and are connected; an L-shaped pipe is fixedly arranged on the inner wall at the top of the machine body (1), and the air duct (3) is connected to the L-shaped pipe; a fan (7) is fixedly arranged on the inner wall at one end of the L-shaped pipe; three slots are provided on the inner wall of the air outlet pipe (5), and the activated carbon filter (13) and the two first filter screens (14) are respectively inserted into the three slots; A fixing mechanism, the fixing mechanism being arranged on the air outlet pipe (5) and being used for fixing the activated carbon filter screen (13) and the two first filter screens (14); A filtering mechanism is arranged on the air duct (3) and is used to filter the position of the air duct (3).

2. A safety ventilation device according to claim 1, It is characterized in that The fixing mechanism comprises a rotating plate (8), a first short plate (9), a second short plate (10) and a bolt (11); two hinges are fixedly provided on one side of the air outlet pipe (5); one side of the two hinges is fixedly connected to one side of the rotating plate (8); one side of the first short plate (9) is fixedly connected to one side of the air outlet pipe (5); one side of the second short plate (10) is fixedly connected to one side of the rotating plate (8); a through hole is provided on the second short plate (10); a first threaded hole is provided on the first short plate (9); one end of the bolt (11) passes through the through hole and is threadedly connected to the threaded hole.

3. A safety ventilation device according to claim 1, It is characterized in that The filtering mechanism comprises a second filter screen (15) for filtering the air duct (3); the second filter screen (15) is arranged at one end of the air duct (3).

4. A safety ventilation device according to claim 2, It is characterized in that A twist bar (12) is welded to the top end of the bolt (11) to facilitate the rotation of the bolt (11).

5. A safety ventilation device according to claim 3, It is characterized in that Four screws (16) are provided on the second filter screen (15), and insertion holes are provided at the four corners of the second filter screen (15). Second threaded holes are provided at the four corners of one end of the air duct (3), and one end of the screw (16) passes through the insertion hole and is threadedly connected to the second threaded hole.

6. A safety ventilation device according to claim 1, It is characterized in that The first filter (14) and the second filter (15) are both made of HEPA filter.

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