A gas alarm ventilation device

Abstract

This utility model relates to the field of ventilation equipment technology and discloses a gas alarm ventilation device, including a ventilation housing. The ventilation housing has an exhaust chamber and an intake chamber inside. An exhaust fan is fixedly installed on the right side inside the exhaust chamber. A first universal joint is fixedly installed on the upper right side of the ventilation housing, and the first universal joint communicates with the interior of the exhaust chamber. This utility model, through the cooperation of a gas alarm, PLC controller, exhaust chamber, exhaust port, exhaust fan, first universal joint, first check valve, intake chamber, exhaust port, exhaust fan, second universal joint, and second check valve, facilitates the detection of gas leaks. Once a gas leak occurs and exceeds the threshold set by the gas alarm, indoor air can be exhausted to the outside while outdoor air is introduced into the room. This ventilates the room and disperses the gas, promoting indoor air circulation and reducing the safety hazards caused by gas leaks.

Description

Technical Field

[0001] This utility model relates to the field of ventilation equipment technology, and more specifically to a gas alarm ventilation device. Background Technology

[0002] Because natural gas is flammable and explosive, a gas leak can lead to dangerous situations such as fire and explosion. Gas alarms are usually installed indoors to detect gas leaks. However, when a gas leak is detected, users usually need to open windows for ventilation. If users do not ventilate the room in time to disperse the gas, there will be certain safety hazards. In addition, existing gas alarms do not have a ventilation function and need to be improved. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a gas alarm ventilation device to solve the problems existing in the background art.

[0004] This utility model provides the following technical solution: a gas alarm ventilation device, including a ventilation housing, an exhaust chamber and an intake chamber are provided inside the ventilation housing, an exhaust fan is fixedly installed on the right side inside the exhaust chamber, a first universal tube is fixedly installed on the upper right side of the ventilation housing, the first universal tube communicates with the interior of the exhaust chamber, a first check valve is fixedly installed at the right end of the first universal tube, an exhaust fan is fixedly installed on the right side inside the intake chamber, a second universal tube is fixedly installed on the lower right side of the ventilation housing, the second universal tube communicates with the interior of the intake chamber, a second check valve is fixedly installed at the right end of the second universal tube, a gas alarm and a PLC controller are fixedly installed on the top of the ventilation housing, an exhaust port is provided on the upper left side of the ventilation housing, the exhaust port communicates with the inner wall of the exhaust chamber, a first limiting ring is provided on the upper left side of the ventilation housing, the first limiting ring is located to the left of the exhaust port, a first filter screen is fixedly installed on the left side inside the first limiting ring.

[0005] Furthermore, the gas alarm and the PLC controller are connected by electrical signals, and the PLC controller is connected by electrical signals to the exhaust fan and the ventilation fan, respectively.

[0006] Furthermore, an annular mounting port is provided on the upper left side of the ventilation housing, and the right side of the first limiting ring is threaded into the annular mounting port.

[0007] Furthermore, an exhaust port is provided on the left side of the bottom of the ventilation housing, and the exhaust port communicates with the interior of the air intake chamber. A second limiting ring is provided on the left side below the ventilation housing, and the second limiting ring is located below the exhaust port. A second filter screen is fixedly installed on the bottom of the inner wall of the second limiting ring.

[0008] Furthermore, a second annular mounting port is provided on the left side of the bottom of the ventilation housing, and the top of the second limiting ring is threaded into the inside of the second annular mounting port.

[0009] Furthermore, four fixed brackets are fixedly connected around the outer wall of the ventilation housing, and each of the four fixed brackets has an installation opening inside.

[0010] The technical effects and advantages of this utility model are as follows:

[0011] 1. This utility model utilizes a gas alarm, PLC controller, exhaust chamber, air extraction port, exhaust fan, No. 1 universal joint, No. 1 check valve, air inlet chamber, exhaust port, exhaust fan, No. 2 universal joint and No. 2 check valve to facilitate the detection of gas leaks. Once a gas leak occurs and exceeds the threshold set by the gas alarm, indoor air can be exhausted to the outside while outdoor air is introduced into the room. This ventilates the room and disperses the gas, promoting air circulation and reducing the safety hazards caused by gas leaks.

[0012] 2. This utility model facilitates the filtration of indoor air by setting a first limiting ring, a first filter screen, and a first annular mounting port. It also facilitates the filtration of indoor air by setting a second limiting ring, a second filter screen, and a second annular mounting port. Furthermore, both the first and second limiting rings can be quickly disassembled and assembled, making it easy to clean the filter screens inside the two limiting rings, thereby maintaining the cleanliness of the filter screens. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective.

[0015] Figure 3 This is a cross-sectional schematic diagram of the ventilation shell structure of this utility model.

[0016] Figure 4 This is an enlarged schematic diagram of the structure at point A of this utility model.

[0017] Figure 5 This is a schematic diagram of the second limiting ring and the second filter screen of this utility model.

[0018] The attached diagram is labeled as follows: 1. Ventilation housing; 2. Gas alarm; 3. PLC controller; 4. Exhaust chamber; 41. Air extraction port; 42. Exhaust fan; 43. Universal joint No. 1; 44. Check valve No. 1; 5. Air inlet chamber; 51. Exhaust port; 52. Exhaust fan; 53. Universal joint No. 2; 54. Check valve No. 2; 6. Limiting ring No. 1; 7. Filter No. 1; 8. Annular mounting port No. 1; 9. Limiting ring No. 2; 91. Filter No. 2; 10. Fixing bracket; 11. Mounting port. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The gas alarm ventilation device involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Example 1:

[0021] like Figure 1-5 As shown, a gas alarm ventilation device includes a ventilation housing 1. The ventilation housing 1 has an exhaust chamber 4 and an intake chamber 5 inside. An exhaust fan 42 is fixedly installed on the right side inside the exhaust chamber 4. A first universal pipe 43 is fixedly installed on the upper right side of the ventilation housing 1, communicating with the interior of the exhaust chamber 4. A first check valve 44 is fixedly installed at the right end of the first universal pipe 43. An exhaust fan 52 is fixedly installed on the right side inside the intake chamber 5. A second universal pipe 53 is fixedly installed on the lower right side of the ventilation housing 1. Universal tube 53 is connected to the interior of air inlet chamber 5. A second check valve 54 is fixedly installed at the right end of universal tube 53. A gas alarm 2 and a PLC controller 3 are fixedly installed on the top of ventilation housing 1. The gas alarm 2 and PLC controller 3 are electrically connected. The PLC controller 3 is electrically connected to exhaust fan 42 and exhaust fan 52 respectively. Fixed brackets 10 are fixedly connected around the outer wall of ventilation housing 1. There are four fixed brackets 10. Each of the four fixed brackets 10 has an installation port 11.

[0022] In this embodiment, the ventilation housing 1 can be fixedly installed in a designated position using bolts through the internal mounting ports 11 of the four fixed brackets 10. The gas alarm 2 can detect indoor gas leaks. Once a gas leak occurs and exceeds the threshold set by the gas alarm 2, the gas alarm 2 sends a signal to the PLC controller 3. The PLC controller 3 then simultaneously controls the exhaust fan 42 and the ventilation fan 52 to operate. At this time, indoor air is exhausted to the outside through the exhaust port 41, exhaust chamber 4, exhaust fan 42, universal joint 43, and check valve 44. The left side of the check valve 44 is a one-way air intake end. The right side of valve 4 is a one-way exhaust end. At the same time, outdoor air is introduced into the room through the No. 2 check valve 54, the No. 2 universal pipe 53, the exhaust fan 52, the air inlet chamber 5, and the exhaust port 51, thereby ventilating the room and dispersing the gas, promoting the circulation of indoor air. The right side of the No. 2 check valve 54 is a one-way air inlet end, and the left side of the No. 2 check valve 54 is a one-way exhaust end. The one-way exhaust end of the No. 1 check valve 44 and the one-way air inlet end of the No. 2 check valve 54 are both fixed with air filters by bolts. The air filters can protect the inside of the No. 1 check valve 44 and the No. 2 check valve 54. The model of gas alarm 2 can be JT-BF-03MI / AW.

[0023] Example 2:

[0024] like Figure 1-5 As shown, an air intake port 41 is provided on the upper left side of the ventilation housing 1, which communicates with the inner wall of the exhaust chamber 4. A first limiting ring 6 is provided on the upper left side of the ventilation housing 1, located to the left of the air intake port 41. A first filter screen 7 is fixedly installed on the left side inside the first limiting ring 6. A first annular mounting port 8 is provided on the upper left side of the ventilation housing 1, and the right side of the first limiting ring 6 is threaded into the first annular mounting port 8. An exhaust port 51 is provided on the left side of the bottom of the ventilation housing 1, which communicates with the interior of the air intake chamber 5. A second limiting ring 9 is provided on the left side of the bottom of the ventilation housing 1, located below the exhaust port 51. A second filter screen 91 is fixedly installed on the bottom of the inner wall of the second limiting ring 9. A second annular mounting port is provided on the left side of the bottom of the ventilation housing 1, and the top of the second limiting ring 9 is threaded into the second annular mounting port.

[0025] In this embodiment, the No. 1 filter 7 facilitates the filtration of the air drawn from the room, and the No. 2 filter 91 facilitates the filtration of the air discharged into the room. By spirally rotating the No. 1 limiting ring 6, it is easy to remove the No. 1 limiting ring 6 from the inside of the No. 1 annular mounting port 8, thereby facilitating the cleaning of the No. 1 filter 7 inside the No. 1 limiting ring 6. The No. 2 limiting ring 9 can be disassembled in the same way, thereby facilitating the cleaning of the No. 2 filter 91 inside the No. 2 limiting ring 9.

[0026] In summary, as Figure 1-5 As shown, this gas alarm ventilation device can be installed in a designated location using bolts through the mounting port 11 inside the fixing bracket 10. Two vents are opened on the exterior wall, and check valves 44 and 54 are installed inside these vents, allowing them to contact the outdoor air. The gas alarm 2 can detect indoor gas leaks. If a gas leak occurs and exceeds the threshold set by the gas alarm 2, the gas alarm 2 sends a signal to the PLC controller 3. The PLC controller 3 then simultaneously controls the exhaust fan 42 and the ventilation fan 52 to operate. Indoor air is filtered through filter 7 and then enters exhaust chamber 4. It is then discharged outdoors through exhaust fan 42, universal joint 43, and check valve 44. At the same time, outdoor air is drawn into intake chamber 5 through check valve 54, universal joint 53, and exhaust fan 52. After being filtered through filter 91, it is discharged into the room. This allows for ventilation of the room while dispersing gas, thereby reducing the safety hazards caused by gas leaks. When the indoor gas level is lower than the threshold set by gas alarm 2, gas alarm 2 sends a signal to PLC controller 3, which then controls exhaust fan 42 and exhaust fan 52 to stop working simultaneously.

[0027] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0028] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0029] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A gas alarm ventilation device comprising a ventilation housing (1), characterized in that The ventilation housing (1) has an exhaust chamber (4) and an intake chamber (5) inside. An exhaust fan (42) is fixedly installed on the right side inside the exhaust chamber (4). A first universal tube (43) is fixedly installed on the upper right side of the ventilation housing (1). The first universal tube (43) communicates with the interior of the exhaust chamber (4). A first check valve (44) is fixedly installed at the right end of the first universal tube (43). An exhaust fan (52) is fixedly installed on the right side inside the intake chamber (5). A second universal tube (53) is fixedly installed on the lower right side of the ventilation housing (1). The second universal joint (53) is connected to the inside of the air intake chamber (5). The second check valve (54) is fixedly installed at the right end of the second universal joint (53). The gas alarm (2) and PLC controller (3) are fixedly installed on the top of the ventilation housing (1). An air extraction port (41) is opened on the upper left side of the ventilation housing (1). The air extraction port (41) is connected to the inner wall of the exhaust chamber (4). A first limiting ring (6) is provided on the upper left side of the ventilation housing (1). The first limiting ring (6) is located on the left side of the air extraction port (41). A first filter screen (7) is fixedly installed on the left side inside the first limiting ring (6).

2. A gas alarm ventilation device according to claim 1, characterised in that: The gas alarm (2) and the PLC controller (3) are connected by electrical signals, and the PLC controller (3) is connected by electrical signals to the exhaust fan (42) and the ventilation fan (52) respectively.

3. A gas alarm ventilation device according to claim 1, characterised in that: An annular mounting port (8) is provided on the upper left side of the ventilation housing (1), and the right side of the first limiting ring (6) is threaded into the annular mounting port (8).

4. A gas alarm ventilation device according to claim 1, characterised in that: An exhaust port (51) is provided on the left side of the bottom of the ventilation housing (1). The exhaust port (51) is connected to the interior of the air inlet chamber (5). A second limiting ring (9) is provided on the left side below the ventilation housing (1). The second limiting ring (9) is located below the exhaust port (51). A second filter screen (91) is fixedly installed on the bottom of the inner wall of the second limiting ring (9).

5. A gas alarm ventilation device according to claim 4, wherein: The ventilation housing (1) has a second annular mounting port on the left side of its bottom, and the top of the second limiting ring (9) is threaded into the second annular mounting port.

6. A gas alarm ventilation device according to claim 1, characterized in that: The ventilation housing (1) is fixedly connected to four fixed brackets (10) around its outer wall. Each of the four fixed brackets (10) has an installation port (11) inside.

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